diff options
Diffstat (limited to 'roms/u-boot/drivers/pci')
| -rw-r--r-- | roms/u-boot/drivers/pci/Makefile | 19 | ||||
| -rw-r--r-- | roms/u-boot/drivers/pci/fsl_pci_init.c | 882 | ||||
| -rw-r--r-- | roms/u-boot/drivers/pci/pci.c | 789 | ||||
| -rw-r--r-- | roms/u-boot/drivers/pci/pci_auto.c | 451 | ||||
| -rw-r--r-- | roms/u-boot/drivers/pci/pci_ftpci100.c | 318 | ||||
| -rw-r--r-- | roms/u-boot/drivers/pci/pci_gt64120.c | 176 | ||||
| -rw-r--r-- | roms/u-boot/drivers/pci/pci_indirect.c | 125 | ||||
| -rw-r--r-- | roms/u-boot/drivers/pci/pci_msc01.c | 125 | ||||
| -rw-r--r-- | roms/u-boot/drivers/pci/pci_sh4.c | 82 | ||||
| -rw-r--r-- | roms/u-boot/drivers/pci/pci_sh7751.c | 187 | ||||
| -rw-r--r-- | roms/u-boot/drivers/pci/pci_sh7780.c | 92 | ||||
| -rw-r--r-- | roms/u-boot/drivers/pci/pcie_imx.c | 617 | ||||
| -rw-r--r-- | roms/u-boot/drivers/pci/tsi108_pci.c | 167 | ||||
| -rw-r--r-- | roms/u-boot/drivers/pci/w83c553f.c | 206 |
14 files changed, 4236 insertions, 0 deletions
diff --git a/roms/u-boot/drivers/pci/Makefile b/roms/u-boot/drivers/pci/Makefile new file mode 100644 index 00000000..e73a4986 --- /dev/null +++ b/roms/u-boot/drivers/pci/Makefile @@ -0,0 +1,19 @@ +# +# (C) Copyright 2000-2007 +# Wolfgang Denk, DENX Software Engineering, wd@denx.de. +# +# SPDX-License-Identifier: GPL-2.0+ +# + +obj-$(CONFIG_FSL_PCI_INIT) += fsl_pci_init.o +obj-$(CONFIG_PCI) += pci.o pci_auto.o +obj-$(CONFIG_PCI_INDIRECT_BRIDGE) += pci_indirect.o +obj-$(CONFIG_PCI_GT64120) += pci_gt64120.o +obj-$(CONFIG_PCI_MSC01) += pci_msc01.o +obj-$(CONFIG_PCIE_IMX) += pcie_imx.o +obj-$(CONFIG_FTPCI100) += pci_ftpci100.o +obj-$(CONFIG_SH4_PCI) += pci_sh4.o +obj-$(CONFIG_SH7751_PCI) +=pci_sh7751.o +obj-$(CONFIG_SH7780_PCI) +=pci_sh7780.o +obj-$(CONFIG_TSI108_PCI) += tsi108_pci.o +obj-$(CONFIG_WINBOND_83C553) += w83c553f.o diff --git a/roms/u-boot/drivers/pci/fsl_pci_init.c b/roms/u-boot/drivers/pci/fsl_pci_init.c new file mode 100644 index 00000000..6317fb13 --- /dev/null +++ b/roms/u-boot/drivers/pci/fsl_pci_init.c @@ -0,0 +1,882 @@ +/* + * Copyright 2007-2012 Freescale Semiconductor, Inc. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <malloc.h> +#include <asm/fsl_serdes.h> + +DECLARE_GLOBAL_DATA_PTR; + +/* + * PCI/PCIE Controller initialization for mpc85xx/mpc86xx soc's + * + * Initialize controller and call the common driver/pci pci_hose_scan to + * scan for bridges and devices. + * + * Hose fields which need to be pre-initialized by board specific code: + * regions[] + * first_busno + * + * Fields updated: + * last_busno + */ + +#include <pci.h> +#include <asm/io.h> +#include <asm/fsl_pci.h> + +#ifndef CONFIG_SYS_PCI_MEMORY_BUS +#define CONFIG_SYS_PCI_MEMORY_BUS 0 +#endif + +#ifndef CONFIG_SYS_PCI_MEMORY_PHYS +#define CONFIG_SYS_PCI_MEMORY_PHYS 0 +#endif + +#if defined(CONFIG_SYS_PCI_64BIT) && !defined(CONFIG_SYS_PCI64_MEMORY_BUS) +#define CONFIG_SYS_PCI64_MEMORY_BUS (64ull*1024*1024*1024) +#endif + +/* Setup one inbound ATMU window. + * + * We let the caller decide what the window size should be + */ +static void set_inbound_window(volatile pit_t *pi, + struct pci_region *r, + u64 size) +{ + u32 sz = (__ilog2_u64(size) - 1); + u32 flag = PIWAR_EN | PIWAR_LOCAL | + PIWAR_READ_SNOOP | PIWAR_WRITE_SNOOP; + + out_be32(&pi->pitar, r->phys_start >> 12); + out_be32(&pi->piwbar, r->bus_start >> 12); +#ifdef CONFIG_SYS_PCI_64BIT + out_be32(&pi->piwbear, r->bus_start >> 44); +#else + out_be32(&pi->piwbear, 0); +#endif + if (r->flags & PCI_REGION_PREFETCH) + flag |= PIWAR_PF; + out_be32(&pi->piwar, flag | sz); +} + +int fsl_setup_hose(struct pci_controller *hose, unsigned long addr) +{ + volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *) addr; + + /* Reset hose to make sure its in a clean state */ + memset(hose, 0, sizeof(struct pci_controller)); + + pci_setup_indirect(hose, (u32)&pci->cfg_addr, (u32)&pci->cfg_data); + + return fsl_is_pci_agent(hose); +} + +static int fsl_pci_setup_inbound_windows(struct pci_controller *hose, + u64 out_lo, u8 pcie_cap, + volatile pit_t *pi) +{ + struct pci_region *r = hose->regions + hose->region_count; + u64 sz = min((u64)gd->ram_size, (1ull << 32)); + + phys_addr_t phys_start = CONFIG_SYS_PCI_MEMORY_PHYS; + pci_addr_t bus_start = CONFIG_SYS_PCI_MEMORY_BUS; + pci_size_t pci_sz; + + /* we have no space available for inbound memory mapping */ + if (bus_start > out_lo) { + printf ("no space for inbound mapping of memory\n"); + return 0; + } + + /* limit size */ + if ((bus_start + sz) > out_lo) { + sz = out_lo - bus_start; + debug ("limiting size to %llx\n", sz); + } + + pci_sz = 1ull << __ilog2_u64(sz); + /* + * we can overlap inbound/outbound windows on PCI-E since RX & TX + * links a separate + */ + if ((pcie_cap == PCI_CAP_ID_EXP) && (pci_sz < sz)) { + debug ("R0 bus_start: %llx phys_start: %llx size: %llx\n", + (u64)bus_start, (u64)phys_start, (u64)sz); + pci_set_region(r, bus_start, phys_start, sz, + PCI_REGION_MEM | PCI_REGION_SYS_MEMORY | + PCI_REGION_PREFETCH); + + /* if we aren't an exact power of two match, pci_sz is smaller + * round it up to the next power of two. We report the actual + * size to pci region tracking. + */ + if (pci_sz != sz) + sz = 2ull << __ilog2_u64(sz); + + set_inbound_window(pi--, r++, sz); + sz = 0; /* make sure we dont set the R2 window */ + } else { + debug ("R0 bus_start: %llx phys_start: %llx size: %llx\n", + (u64)bus_start, (u64)phys_start, (u64)pci_sz); + pci_set_region(r, bus_start, phys_start, pci_sz, + PCI_REGION_MEM | PCI_REGION_SYS_MEMORY | + PCI_REGION_PREFETCH); + set_inbound_window(pi--, r++, pci_sz); + + sz -= pci_sz; + bus_start += pci_sz; + phys_start += pci_sz; + + pci_sz = 1ull << __ilog2_u64(sz); + if (sz) { + debug ("R1 bus_start: %llx phys_start: %llx size: %llx\n", + (u64)bus_start, (u64)phys_start, (u64)pci_sz); + pci_set_region(r, bus_start, phys_start, pci_sz, + PCI_REGION_MEM | PCI_REGION_SYS_MEMORY | + PCI_REGION_PREFETCH); + set_inbound_window(pi--, r++, pci_sz); + sz -= pci_sz; + bus_start += pci_sz; + phys_start += pci_sz; + } + } + +#if defined(CONFIG_PHYS_64BIT) && defined(CONFIG_SYS_PCI_64BIT) + /* + * On 64-bit capable systems, set up a mapping for all of DRAM + * in high pci address space. + */ + pci_sz = 1ull << __ilog2_u64(gd->ram_size); + /* round up to the next largest power of two */ + if (gd->ram_size > pci_sz) + pci_sz = 1ull << (__ilog2_u64(gd->ram_size) + 1); + debug ("R64 bus_start: %llx phys_start: %llx size: %llx\n", + (u64)CONFIG_SYS_PCI64_MEMORY_BUS, + (u64)CONFIG_SYS_PCI_MEMORY_PHYS, + (u64)pci_sz); + pci_set_region(r, + CONFIG_SYS_PCI64_MEMORY_BUS, + CONFIG_SYS_PCI_MEMORY_PHYS, + pci_sz, + PCI_REGION_MEM | PCI_REGION_SYS_MEMORY | + PCI_REGION_PREFETCH); + set_inbound_window(pi--, r++, pci_sz); +#else + pci_sz = 1ull << __ilog2_u64(sz); + if (sz) { + debug ("R2 bus_start: %llx phys_start: %llx size: %llx\n", + (u64)bus_start, (u64)phys_start, (u64)pci_sz); + pci_set_region(r, bus_start, phys_start, pci_sz, + PCI_REGION_MEM | PCI_REGION_SYS_MEMORY | + PCI_REGION_PREFETCH); + sz -= pci_sz; + bus_start += pci_sz; + phys_start += pci_sz; + set_inbound_window(pi--, r++, pci_sz); + } +#endif + +#ifdef CONFIG_PHYS_64BIT + if (sz && (((u64)gd->ram_size) < (1ull << 32))) + printf("Was not able to map all of memory via " + "inbound windows -- %lld remaining\n", sz); +#endif + + hose->region_count = r - hose->regions; + + return 1; +} + +#ifdef CONFIG_SRIO_PCIE_BOOT_MASTER +static void fsl_pcie_boot_master(pit_t *pi) +{ + /* configure inbound window for slave's u-boot image */ + debug("PCIEBOOT - MASTER: Inbound window for slave's image; " + "Local = 0x%llx, Bus = 0x%llx, Size = 0x%x\n", + (u64)CONFIG_SRIO_PCIE_BOOT_IMAGE_MEM_PHYS, + (u64)CONFIG_SRIO_PCIE_BOOT_IMAGE_MEM_BUS1, + CONFIG_SRIO_PCIE_BOOT_IMAGE_SIZE); + struct pci_region r_inbound; + u32 sz_inbound = __ilog2_u64(CONFIG_SRIO_PCIE_BOOT_IMAGE_SIZE) + - 1; + pci_set_region(&r_inbound, + CONFIG_SRIO_PCIE_BOOT_IMAGE_MEM_BUS1, + CONFIG_SRIO_PCIE_BOOT_IMAGE_MEM_PHYS, + sz_inbound, + PCI_REGION_MEM | PCI_REGION_SYS_MEMORY); + + set_inbound_window(pi--, &r_inbound, + CONFIG_SRIO_PCIE_BOOT_IMAGE_SIZE); + + /* configure inbound window for slave's u-boot image */ + debug("PCIEBOOT - MASTER: Inbound window for slave's image; " + "Local = 0x%llx, Bus = 0x%llx, Size = 0x%x\n", + (u64)CONFIG_SRIO_PCIE_BOOT_IMAGE_MEM_PHYS, + (u64)CONFIG_SRIO_PCIE_BOOT_IMAGE_MEM_BUS2, + CONFIG_SRIO_PCIE_BOOT_IMAGE_SIZE); + pci_set_region(&r_inbound, + CONFIG_SRIO_PCIE_BOOT_IMAGE_MEM_BUS2, + CONFIG_SRIO_PCIE_BOOT_IMAGE_MEM_PHYS, + sz_inbound, + PCI_REGION_MEM | PCI_REGION_SYS_MEMORY); + + set_inbound_window(pi--, &r_inbound, + CONFIG_SRIO_PCIE_BOOT_IMAGE_SIZE); + + /* configure inbound window for slave's ucode and ENV */ + debug("PCIEBOOT - MASTER: Inbound window for slave's " + "ucode and ENV; " + "Local = 0x%llx, Bus = 0x%llx, Size = 0x%x\n", + (u64)CONFIG_SRIO_PCIE_BOOT_UCODE_ENV_MEM_PHYS, + (u64)CONFIG_SRIO_PCIE_BOOT_UCODE_ENV_MEM_BUS, + CONFIG_SRIO_PCIE_BOOT_UCODE_ENV_SIZE); + sz_inbound = __ilog2_u64(CONFIG_SRIO_PCIE_BOOT_UCODE_ENV_SIZE) + - 1; + pci_set_region(&r_inbound, + CONFIG_SRIO_PCIE_BOOT_UCODE_ENV_MEM_BUS, + CONFIG_SRIO_PCIE_BOOT_UCODE_ENV_MEM_PHYS, + sz_inbound, + PCI_REGION_MEM | PCI_REGION_SYS_MEMORY); + + set_inbound_window(pi--, &r_inbound, + CONFIG_SRIO_PCIE_BOOT_UCODE_ENV_SIZE); +} + +static void fsl_pcie_boot_master_release_slave(int port) +{ + unsigned long release_addr; + + /* now release slave's core 0 */ + switch (port) { + case 1: + release_addr = CONFIG_SYS_PCIE1_MEM_VIRT + + CONFIG_SRIO_PCIE_BOOT_BRR_OFFSET; + break; +#ifdef CONFIG_SYS_PCIE2_MEM_VIRT + case 2: + release_addr = CONFIG_SYS_PCIE2_MEM_VIRT + + CONFIG_SRIO_PCIE_BOOT_BRR_OFFSET; + break; +#endif +#ifdef CONFIG_SYS_PCIE3_MEM_VIRT + case 3: + release_addr = CONFIG_SYS_PCIE3_MEM_VIRT + + CONFIG_SRIO_PCIE_BOOT_BRR_OFFSET; + break; +#endif + default: + release_addr = 0; + break; + } + if (release_addr != 0) { + out_be32((void *)release_addr, + CONFIG_SRIO_PCIE_BOOT_RELEASE_MASK); + debug("PCIEBOOT - MASTER: " + "Release slave successfully! Now the slave should start up!\n"); + } else { + debug("PCIEBOOT - MASTER: " + "Release slave failed!\n"); + } +} +#endif + +void fsl_pci_init(struct pci_controller *hose, struct fsl_pci_info *pci_info) +{ + u32 cfg_addr = (u32)&((ccsr_fsl_pci_t *)pci_info->regs)->cfg_addr; + u32 cfg_data = (u32)&((ccsr_fsl_pci_t *)pci_info->regs)->cfg_data; + u16 temp16; + u32 temp32; + u32 block_rev; + int enabled, r, inbound = 0; + u16 ltssm; + u8 temp8, pcie_cap; + int pcie_cap_pos; + int pci_dcr; + int pci_dsr; + int pci_lsr; + +#if defined(CONFIG_FSL_PCIE_DISABLE_ASPM) + int pci_lcr; +#endif + + volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *)cfg_addr; + struct pci_region *reg = hose->regions + hose->region_count; + pci_dev_t dev = PCI_BDF(hose->first_busno, 0, 0); + + /* Initialize ATMU registers based on hose regions and flags */ + volatile pot_t *po = &pci->pot[1]; /* skip 0 */ + volatile pit_t *pi; + + u64 out_hi = 0, out_lo = -1ULL; + u32 pcicsrbar, pcicsrbar_sz; + + pci_setup_indirect(hose, cfg_addr, cfg_data); + + block_rev = in_be32(&pci->block_rev1); + if (PEX_IP_BLK_REV_2_2 <= block_rev) { + pi = &pci->pit[2]; /* 0xDC0 */ + } else { + pi = &pci->pit[3]; /* 0xDE0 */ + } + + /* Handle setup of outbound windows first */ + for (r = 0; r < hose->region_count; r++) { + unsigned long flags = hose->regions[r].flags; + u32 sz = (__ilog2_u64((u64)hose->regions[r].size) - 1); + + flags &= PCI_REGION_SYS_MEMORY|PCI_REGION_TYPE; + if (flags != PCI_REGION_SYS_MEMORY) { + u64 start = hose->regions[r].bus_start; + u64 end = start + hose->regions[r].size; + + out_be32(&po->powbar, hose->regions[r].phys_start >> 12); + out_be32(&po->potar, start >> 12); +#ifdef CONFIG_SYS_PCI_64BIT + out_be32(&po->potear, start >> 44); +#else + out_be32(&po->potear, 0); +#endif + if (hose->regions[r].flags & PCI_REGION_IO) { + out_be32(&po->powar, POWAR_EN | sz | + POWAR_IO_READ | POWAR_IO_WRITE); + } else { + out_be32(&po->powar, POWAR_EN | sz | + POWAR_MEM_READ | POWAR_MEM_WRITE); + out_lo = min(start, out_lo); + out_hi = max(end, out_hi); + } + po++; + } + } + debug("Outbound memory range: %llx:%llx\n", out_lo, out_hi); + + /* setup PCSRBAR/PEXCSRBAR */ + pci_hose_write_config_dword(hose, dev, PCI_BASE_ADDRESS_0, 0xffffffff); + pci_hose_read_config_dword (hose, dev, PCI_BASE_ADDRESS_0, &pcicsrbar_sz); + pcicsrbar_sz = ~pcicsrbar_sz + 1; + + if (out_hi < (0x100000000ull - pcicsrbar_sz) || + (out_lo > 0x100000000ull)) + pcicsrbar = 0x100000000ull - pcicsrbar_sz; + else + pcicsrbar = (out_lo - pcicsrbar_sz) & -pcicsrbar_sz; + pci_hose_write_config_dword(hose, dev, PCI_BASE_ADDRESS_0, pcicsrbar); + + out_lo = min(out_lo, (u64)pcicsrbar); + + debug("PCICSRBAR @ 0x%x\n", pcicsrbar); + + pci_set_region(reg++, pcicsrbar, CONFIG_SYS_CCSRBAR_PHYS, + pcicsrbar_sz, PCI_REGION_SYS_MEMORY); + hose->region_count++; + + /* see if we are a PCIe or PCI controller */ + pcie_cap_pos = pci_hose_find_capability(hose, dev, PCI_CAP_ID_EXP); + pci_dcr = pcie_cap_pos + 0x08; + pci_dsr = pcie_cap_pos + 0x0a; + pci_lsr = pcie_cap_pos + 0x12; + + pci_hose_read_config_byte(hose, dev, pcie_cap_pos, &pcie_cap); + +#ifdef CONFIG_SRIO_PCIE_BOOT_MASTER + /* boot from PCIE --master */ + char *s = getenv("bootmaster"); + char pcie[6]; + sprintf(pcie, "PCIE%d", pci_info->pci_num); + + if (s && (strcmp(s, pcie) == 0)) { + debug("PCIEBOOT - MASTER: Master port [ %d ] for pcie boot.\n", + pci_info->pci_num); + fsl_pcie_boot_master((pit_t *)pi); + } else { + /* inbound */ + inbound = fsl_pci_setup_inbound_windows(hose, + out_lo, pcie_cap, pi); + } +#else + /* inbound */ + inbound = fsl_pci_setup_inbound_windows(hose, out_lo, pcie_cap, pi); +#endif + + for (r = 0; r < hose->region_count; r++) + debug("PCI reg:%d %016llx:%016llx %016llx %08lx\n", r, + (u64)hose->regions[r].phys_start, + (u64)hose->regions[r].bus_start, + (u64)hose->regions[r].size, + hose->regions[r].flags); + + pci_register_hose(hose); + pciauto_config_init(hose); /* grab pci_{mem,prefetch,io} */ + hose->current_busno = hose->first_busno; + + out_be32(&pci->pedr, 0xffffffff); /* Clear any errors */ + out_be32(&pci->peer, ~0x20140); /* Enable All Error Interrupts except + * - Master abort (pci) + * - Master PERR (pci) + * - ICCA (PCIe) + */ + pci_hose_read_config_dword(hose, dev, pci_dcr, &temp32); + temp32 |= 0xf000e; /* set URR, FER, NFER (but not CER) */ + pci_hose_write_config_dword(hose, dev, pci_dcr, temp32); + +#if defined(CONFIG_FSL_PCIE_DISABLE_ASPM) + pci_lcr = pcie_cap_pos + 0x10; + temp32 = 0; + pci_hose_read_config_dword(hose, dev, pci_lcr, &temp32); + temp32 &= ~0x03; /* Disable ASPM */ + pci_hose_write_config_dword(hose, dev, pci_lcr, temp32); + udelay(1); +#endif + if (pcie_cap == PCI_CAP_ID_EXP) { + if (block_rev >= PEX_IP_BLK_REV_3_0) { +#define PEX_CSR0_LTSSM_MASK 0xFC +#define PEX_CSR0_LTSSM_SHIFT 2 + ltssm = (in_be32(&pci->pex_csr0) + & PEX_CSR0_LTSSM_MASK) >> PEX_CSR0_LTSSM_SHIFT; + enabled = (ltssm == 0x11) ? 1 : 0; + } else { + /* pci_hose_read_config_word(hose, dev, PCI_LTSSM, <ssm); */ + /* enabled = ltssm >= PCI_LTSSM_L0; */ + pci_hose_read_config_word(hose, dev, PCI_LTSSM, <ssm); + enabled = ltssm >= PCI_LTSSM_L0; + +#ifdef CONFIG_FSL_PCIE_RESET + if (ltssm == 1) { + int i; + debug("....PCIe link error. " "LTSSM=0x%02x.", ltssm); + /* assert PCIe reset */ + setbits_be32(&pci->pdb_stat, 0x08000000); + (void) in_be32(&pci->pdb_stat); + udelay(100); + debug(" Asserting PCIe reset @%p = %x\n", + &pci->pdb_stat, in_be32(&pci->pdb_stat)); + /* clear PCIe reset */ + clrbits_be32(&pci->pdb_stat, 0x08000000); + asm("sync;isync"); + for (i=0; i<100 && ltssm < PCI_LTSSM_L0; i++) { + pci_hose_read_config_word(hose, dev, PCI_LTSSM, + <ssm); + udelay(1000); + debug("....PCIe link error. " + "LTSSM=0x%02x.\n", ltssm); + } + enabled = ltssm >= PCI_LTSSM_L0; + + /* we need to re-write the bar0 since a reset will + * clear it + */ + pci_hose_write_config_dword(hose, dev, + PCI_BASE_ADDRESS_0, pcicsrbar); + } +#endif + } + +#ifdef CONFIG_SYS_P4080_ERRATUM_PCIE_A003 + if (enabled == 0) { + serdes_corenet_t *srds_regs = (void *)CONFIG_SYS_FSL_CORENET_SERDES_ADDR; + temp32 = in_be32(&srds_regs->srdspccr0); + + if ((temp32 >> 28) == 3) { + int i; + + out_be32(&srds_regs->srdspccr0, 2 << 28); + setbits_be32(&pci->pdb_stat, 0x08000000); + in_be32(&pci->pdb_stat); + udelay(100); + clrbits_be32(&pci->pdb_stat, 0x08000000); + asm("sync;isync"); + for (i=0; i < 100 && ltssm < PCI_LTSSM_L0; i++) { + pci_hose_read_config_word(hose, dev, PCI_LTSSM, <ssm); + udelay(1000); + } + enabled = ltssm >= PCI_LTSSM_L0; + } + } +#endif + if (!enabled) { + /* Let the user know there's no PCIe link */ + printf("no link, regs @ 0x%lx\n", pci_info->regs); + hose->last_busno = hose->first_busno; + return; + } + + out_be32(&pci->pme_msg_det, 0xffffffff); + out_be32(&pci->pme_msg_int_en, 0xffffffff); + + /* Print the negotiated PCIe link width */ + pci_hose_read_config_word(hose, dev, pci_lsr, &temp16); + printf("x%d gen%d, regs @ 0x%lx\n", (temp16 & 0x3f0) >> 4, + (temp16 & 0xf), pci_info->regs); + + hose->current_busno++; /* Start scan with secondary */ + pciauto_prescan_setup_bridge(hose, dev, hose->current_busno); + } + + /* Use generic setup_device to initialize standard pci regs, + * but do not allocate any windows since any BAR found (such + * as PCSRBAR) is not in this cpu's memory space. + */ + pciauto_setup_device(hose, dev, 0, hose->pci_mem, + hose->pci_prefetch, hose->pci_io); + + if (inbound) { + pci_hose_read_config_word(hose, dev, PCI_COMMAND, &temp16); + pci_hose_write_config_word(hose, dev, PCI_COMMAND, + temp16 | PCI_COMMAND_MEMORY); + } + +#ifndef CONFIG_PCI_NOSCAN + if (!fsl_is_pci_agent(hose)) { + debug(" Scanning PCI bus %02x\n", + hose->current_busno); + hose->last_busno = pci_hose_scan_bus(hose, hose->current_busno); + } else { + debug(" Not scanning PCI bus %02x. PI=%x\n", + hose->current_busno, temp8); + hose->last_busno = hose->current_busno; + } + + /* if we are PCIe - update limit regs and subordinate busno + * for the virtual P2P bridge + */ + if (pcie_cap == PCI_CAP_ID_EXP) { + pciauto_postscan_setup_bridge(hose, dev, hose->last_busno); + } +#else + hose->last_busno = hose->current_busno; +#endif + + /* Clear all error indications */ + if (pcie_cap == PCI_CAP_ID_EXP) + out_be32(&pci->pme_msg_det, 0xffffffff); + out_be32(&pci->pedr, 0xffffffff); + + pci_hose_read_config_word(hose, dev, pci_dsr, &temp16); + if (temp16) { + pci_hose_write_config_word(hose, dev, pci_dsr, 0xffff); + } + + pci_hose_read_config_word (hose, dev, PCI_SEC_STATUS, &temp16); + if (temp16) { + pci_hose_write_config_word(hose, dev, PCI_SEC_STATUS, 0xffff); + } +} + +int fsl_is_pci_agent(struct pci_controller *hose) +{ + int pcie_cap_pos; + u8 pcie_cap; + pci_dev_t dev = PCI_BDF(hose->first_busno, 0, 0); + + pcie_cap_pos = pci_hose_find_capability(hose, dev, PCI_CAP_ID_EXP); + pci_hose_read_config_byte(hose, dev, pcie_cap_pos, &pcie_cap); + if (pcie_cap == PCI_CAP_ID_EXP) { + u8 header_type; + + pci_hose_read_config_byte(hose, dev, PCI_HEADER_TYPE, + &header_type); + return (header_type & 0x7f) == PCI_HEADER_TYPE_NORMAL; + } else { + u8 prog_if; + + pci_hose_read_config_byte(hose, dev, PCI_CLASS_PROG, &prog_if); + /* Programming Interface (PCI_CLASS_PROG) + * 0 == pci host or pcie root-complex, + * 1 == pci agent or pcie end-point + */ + return (prog_if == FSL_PROG_IF_AGENT); + } +} + +int fsl_pci_init_port(struct fsl_pci_info *pci_info, + struct pci_controller *hose, int busno) +{ + volatile ccsr_fsl_pci_t *pci; + struct pci_region *r; + pci_dev_t dev = PCI_BDF(busno,0,0); + int pcie_cap_pos; + u8 pcie_cap; + + pci = (ccsr_fsl_pci_t *) pci_info->regs; + + /* on non-PCIe controllers we don't have pme_msg_det so this code + * should do nothing since the read will return 0 + */ + if (in_be32(&pci->pme_msg_det)) { + out_be32(&pci->pme_msg_det, 0xffffffff); + debug (" with errors. Clearing. Now 0x%08x", + pci->pme_msg_det); + } + + r = hose->regions + hose->region_count; + + /* outbound memory */ + pci_set_region(r++, + pci_info->mem_bus, + pci_info->mem_phys, + pci_info->mem_size, + PCI_REGION_MEM); + + /* outbound io */ + pci_set_region(r++, + pci_info->io_bus, + pci_info->io_phys, + pci_info->io_size, + PCI_REGION_IO); + + hose->region_count = r - hose->regions; + hose->first_busno = busno; + + fsl_pci_init(hose, pci_info); + + if (fsl_is_pci_agent(hose)) { + fsl_pci_config_unlock(hose); + hose->last_busno = hose->first_busno; +#ifdef CONFIG_SRIO_PCIE_BOOT_MASTER + } else { + /* boot from PCIE --master releases slave's core 0 */ + char *s = getenv("bootmaster"); + char pcie[6]; + sprintf(pcie, "PCIE%d", pci_info->pci_num); + + if (s && (strcmp(s, pcie) == 0)) + fsl_pcie_boot_master_release_slave(pci_info->pci_num); +#endif + } + + pcie_cap_pos = pci_hose_find_capability(hose, dev, PCI_CAP_ID_EXP); + pci_hose_read_config_byte(hose, dev, pcie_cap_pos, &pcie_cap); + printf("PCI%s%x: Bus %02x - %02x\n", pcie_cap == PCI_CAP_ID_EXP ? + "e" : "", pci_info->pci_num, + hose->first_busno, hose->last_busno); + return(hose->last_busno + 1); +} + +/* Enable inbound PCI config cycles for agent/endpoint interface */ +void fsl_pci_config_unlock(struct pci_controller *hose) +{ + pci_dev_t dev = PCI_BDF(hose->first_busno,0,0); + int pcie_cap_pos; + u8 pcie_cap; + u16 pbfr; + + if (!fsl_is_pci_agent(hose)) + return; + + pcie_cap_pos = pci_hose_find_capability(hose, dev, PCI_CAP_ID_EXP); + pci_hose_read_config_byte(hose, dev, pcie_cap_pos, &pcie_cap); + if (pcie_cap != 0x0) { + /* PCIe - set CFG_READY bit of Configuration Ready Register */ + pci_hose_write_config_byte(hose, dev, FSL_PCIE_CFG_RDY, 0x1); + } else { + /* PCI - clear ACL bit of PBFR */ + pci_hose_read_config_word(hose, dev, FSL_PCI_PBFR, &pbfr); + pbfr &= ~0x20; + pci_hose_write_config_word(hose, dev, FSL_PCI_PBFR, pbfr); + } +} + +#if defined(CONFIG_PCIE1) || defined(CONFIG_PCIE2) || \ + defined(CONFIG_PCIE3) || defined(CONFIG_PCIE4) +int fsl_configure_pcie(struct fsl_pci_info *info, + struct pci_controller *hose, + const char *connected, int busno) +{ + int is_endpoint; + + set_next_law(info->mem_phys, law_size_bits(info->mem_size), info->law); + set_next_law(info->io_phys, law_size_bits(info->io_size), info->law); + + is_endpoint = fsl_setup_hose(hose, info->regs); + printf("PCIe%u: %s", info->pci_num, + is_endpoint ? "Endpoint" : "Root Complex"); + if (connected) + printf(" of %s", connected); + puts(", "); + + return fsl_pci_init_port(info, hose, busno); +} + +#if defined(CONFIG_FSL_CORENET) +#ifdef CONFIG_SYS_FSL_QORIQ_CHASSIS2 + #define _DEVDISR_PCIE1 FSL_CORENET_DEVDISR3_PCIE1 + #define _DEVDISR_PCIE2 FSL_CORENET_DEVDISR3_PCIE2 + #define _DEVDISR_PCIE3 FSL_CORENET_DEVDISR3_PCIE3 + #define _DEVDISR_PCIE4 FSL_CORENET_DEVDISR3_PCIE4 +#else + #define _DEVDISR_PCIE1 FSL_CORENET_DEVDISR_PCIE1 + #define _DEVDISR_PCIE2 FSL_CORENET_DEVDISR_PCIE2 + #define _DEVDISR_PCIE3 FSL_CORENET_DEVDISR_PCIE3 + #define _DEVDISR_PCIE4 FSL_CORENET_DEVDISR_PCIE4 +#endif + #define CONFIG_SYS_MPC8xxx_GUTS_ADDR CONFIG_SYS_MPC85xx_GUTS_ADDR +#elif defined(CONFIG_MPC85xx) + #define _DEVDISR_PCIE1 MPC85xx_DEVDISR_PCIE + #define _DEVDISR_PCIE2 MPC85xx_DEVDISR_PCIE2 + #define _DEVDISR_PCIE3 MPC85xx_DEVDISR_PCIE3 + #define _DEVDISR_PCIE4 0 + #define CONFIG_SYS_MPC8xxx_GUTS_ADDR CONFIG_SYS_MPC85xx_GUTS_ADDR +#elif defined(CONFIG_MPC86xx) + #define _DEVDISR_PCIE1 MPC86xx_DEVDISR_PCIE1 + #define _DEVDISR_PCIE2 MPC86xx_DEVDISR_PCIE2 + #define _DEVDISR_PCIE3 0 + #define _DEVDISR_PCIE4 0 + #define CONFIG_SYS_MPC8xxx_GUTS_ADDR \ + (&((immap_t *)CONFIG_SYS_IMMR)->im_gur) +#else +#error "No defines for DEVDISR_PCIE" +#endif + +/* Implement a dummy function for those platforms w/o SERDES */ +static const char *__board_serdes_name(enum srds_prtcl device) +{ + switch (device) { +#ifdef CONFIG_SYS_PCIE1_NAME + case PCIE1: + return CONFIG_SYS_PCIE1_NAME; +#endif +#ifdef CONFIG_SYS_PCIE2_NAME + case PCIE2: + return CONFIG_SYS_PCIE2_NAME; +#endif +#ifdef CONFIG_SYS_PCIE3_NAME + case PCIE3: + return CONFIG_SYS_PCIE3_NAME; +#endif +#ifdef CONFIG_SYS_PCIE4_NAME + case PCIE4: + return CONFIG_SYS_PCIE4_NAME; +#endif + default: + return NULL; + } + + return NULL; +} + +__attribute__((weak, alias("__board_serdes_name"))) const char * +board_serdes_name(enum srds_prtcl device); + +static u32 devdisr_mask[] = { + _DEVDISR_PCIE1, + _DEVDISR_PCIE2, + _DEVDISR_PCIE3, + _DEVDISR_PCIE4, +}; + +int fsl_pcie_init_ctrl(int busno, u32 devdisr, enum srds_prtcl dev, + struct fsl_pci_info *pci_info) +{ + struct pci_controller *hose; + int num = dev - PCIE1; + + hose = calloc(1, sizeof(struct pci_controller)); + if (!hose) + return busno; + + if (is_serdes_configured(dev) && !(devdisr & devdisr_mask[num])) { + busno = fsl_configure_pcie(pci_info, hose, + board_serdes_name(dev), busno); + } else { + printf("PCIe%d: disabled\n", num + 1); + } + + return busno; +} + +int fsl_pcie_init_board(int busno) +{ + struct fsl_pci_info pci_info; + ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC8xxx_GUTS_ADDR; + u32 devdisr; + u32 *addr; + +#ifdef CONFIG_SYS_FSL_QORIQ_CHASSIS2 + addr = &gur->devdisr3; +#else + addr = &gur->devdisr; +#endif + devdisr = in_be32(addr); + +#ifdef CONFIG_PCIE1 + SET_STD_PCIE_INFO(pci_info, 1); + busno = fsl_pcie_init_ctrl(busno, devdisr, PCIE1, &pci_info); +#else + setbits_be32(addr, _DEVDISR_PCIE1); /* disable */ +#endif + +#ifdef CONFIG_PCIE2 + SET_STD_PCIE_INFO(pci_info, 2); + busno = fsl_pcie_init_ctrl(busno, devdisr, PCIE2, &pci_info); +#else + setbits_be32(addr, _DEVDISR_PCIE2); /* disable */ +#endif + +#ifdef CONFIG_PCIE3 + SET_STD_PCIE_INFO(pci_info, 3); + busno = fsl_pcie_init_ctrl(busno, devdisr, PCIE3, &pci_info); +#else + setbits_be32(addr, _DEVDISR_PCIE3); /* disable */ +#endif + +#ifdef CONFIG_PCIE4 + SET_STD_PCIE_INFO(pci_info, 4); + busno = fsl_pcie_init_ctrl(busno, devdisr, PCIE4, &pci_info); +#else + setbits_be32(addr, _DEVDISR_PCIE4); /* disable */ +#endif + + return busno; +} +#else +int fsl_pcie_init_ctrl(int busno, u32 devdisr, enum srds_prtcl dev, + struct fsl_pci_info *pci_info) +{ + return busno; +} + +int fsl_pcie_init_board(int busno) +{ + return busno; +} +#endif + +#ifdef CONFIG_OF_BOARD_SETUP +#include <libfdt.h> +#include <fdt_support.h> + +void ft_fsl_pci_setup(void *blob, const char *pci_compat, + unsigned long ctrl_addr) +{ + int off; + u32 bus_range[2]; + phys_addr_t p_ctrl_addr = (phys_addr_t)ctrl_addr; + struct pci_controller *hose; + + hose = find_hose_by_cfg_addr((void *)(ctrl_addr)); + + /* convert ctrl_addr to true physical address */ + p_ctrl_addr = (phys_addr_t)ctrl_addr - CONFIG_SYS_CCSRBAR; + p_ctrl_addr += CONFIG_SYS_CCSRBAR_PHYS; + + off = fdt_node_offset_by_compat_reg(blob, pci_compat, p_ctrl_addr); + + if (off < 0) + return; + + /* We assume a cfg_addr not being set means we didn't setup the controller */ + if ((hose == NULL) || (hose->cfg_addr == NULL)) { + fdt_del_node(blob, off); + } else { + bus_range[0] = 0; + bus_range[1] = hose->last_busno - hose->first_busno; + fdt_setprop(blob, off, "bus-range", &bus_range[0], 2*4); + fdt_pci_dma_ranges(blob, off, hose); + } +} +#endif diff --git a/roms/u-boot/drivers/pci/pci.c b/roms/u-boot/drivers/pci/pci.c new file mode 100644 index 00000000..ed113bf4 --- /dev/null +++ b/roms/u-boot/drivers/pci/pci.c @@ -0,0 +1,789 @@ +/* + * (C) Copyright 2001 Sysgo Real-Time Solutions, GmbH <www.elinos.com> + * Andreas Heppel <aheppel@sysgo.de> + * + * (C) Copyright 2002, 2003 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +/* + * PCI routines + */ + +#include <common.h> + +#include <command.h> +#include <asm/processor.h> +#include <asm/io.h> +#include <pci.h> + +#define PCI_HOSE_OP(rw, size, type) \ +int pci_hose_##rw##_config_##size(struct pci_controller *hose, \ + pci_dev_t dev, \ + int offset, type value) \ +{ \ + return hose->rw##_##size(hose, dev, offset, value); \ +} + +PCI_HOSE_OP(read, byte, u8 *) +PCI_HOSE_OP(read, word, u16 *) +PCI_HOSE_OP(read, dword, u32 *) +PCI_HOSE_OP(write, byte, u8) +PCI_HOSE_OP(write, word, u16) +PCI_HOSE_OP(write, dword, u32) + +#define PCI_OP(rw, size, type, error_code) \ +int pci_##rw##_config_##size(pci_dev_t dev, int offset, type value) \ +{ \ + struct pci_controller *hose = pci_bus_to_hose(PCI_BUS(dev)); \ + \ + if (!hose) \ + { \ + error_code; \ + return -1; \ + } \ + \ + return pci_hose_##rw##_config_##size(hose, dev, offset, value); \ +} + +PCI_OP(read, byte, u8 *, *value = 0xff) +PCI_OP(read, word, u16 *, *value = 0xffff) +PCI_OP(read, dword, u32 *, *value = 0xffffffff) +PCI_OP(write, byte, u8, ) +PCI_OP(write, word, u16, ) +PCI_OP(write, dword, u32, ) + +#define PCI_READ_VIA_DWORD_OP(size, type, off_mask) \ +int pci_hose_read_config_##size##_via_dword(struct pci_controller *hose,\ + pci_dev_t dev, \ + int offset, type val) \ +{ \ + u32 val32; \ + \ + if (pci_hose_read_config_dword(hose, dev, offset & 0xfc, &val32) < 0) { \ + *val = -1; \ + return -1; \ + } \ + \ + *val = (val32 >> ((offset & (int)off_mask) * 8)); \ + \ + return 0; \ +} + +#define PCI_WRITE_VIA_DWORD_OP(size, type, off_mask, val_mask) \ +int pci_hose_write_config_##size##_via_dword(struct pci_controller *hose,\ + pci_dev_t dev, \ + int offset, type val) \ +{ \ + u32 val32, mask, ldata, shift; \ + \ + if (pci_hose_read_config_dword(hose, dev, offset & 0xfc, &val32) < 0)\ + return -1; \ + \ + shift = ((offset & (int)off_mask) * 8); \ + ldata = (((unsigned long)val) & val_mask) << shift; \ + mask = val_mask << shift; \ + val32 = (val32 & ~mask) | ldata; \ + \ + if (pci_hose_write_config_dword(hose, dev, offset & 0xfc, val32) < 0)\ + return -1; \ + \ + return 0; \ +} + +PCI_READ_VIA_DWORD_OP(byte, u8 *, 0x03) +PCI_READ_VIA_DWORD_OP(word, u16 *, 0x02) +PCI_WRITE_VIA_DWORD_OP(byte, u8, 0x03, 0x000000ff) +PCI_WRITE_VIA_DWORD_OP(word, u16, 0x02, 0x0000ffff) + +/* Get a virtual address associated with a BAR region */ +void *pci_map_bar(pci_dev_t pdev, int bar, int flags) +{ + pci_addr_t pci_bus_addr; + u32 bar_response; + + /* read BAR address */ + pci_read_config_dword(pdev, bar, &bar_response); + pci_bus_addr = (pci_addr_t)(bar_response & ~0xf); + + /* + * Pass "0" as the length argument to pci_bus_to_virt. The arg + * isn't actualy used on any platform because u-boot assumes a static + * linear mapping. In the future, this could read the BAR size + * and pass that as the size if needed. + */ + return pci_bus_to_virt(pdev, pci_bus_addr, flags, 0, MAP_NOCACHE); +} + +/* + * + */ + +static struct pci_controller* hose_head; + +void pci_register_hose(struct pci_controller* hose) +{ + struct pci_controller **phose = &hose_head; + + while(*phose) + phose = &(*phose)->next; + + hose->next = NULL; + + *phose = hose; +} + +struct pci_controller *pci_bus_to_hose(int bus) +{ + struct pci_controller *hose; + + for (hose = hose_head; hose; hose = hose->next) { + if (bus >= hose->first_busno && bus <= hose->last_busno) + return hose; + } + + printf("pci_bus_to_hose() failed\n"); + return NULL; +} + +struct pci_controller *find_hose_by_cfg_addr(void *cfg_addr) +{ + struct pci_controller *hose; + + for (hose = hose_head; hose; hose = hose->next) { + if (hose->cfg_addr == cfg_addr) + return hose; + } + + return NULL; +} + +int pci_last_busno(void) +{ + struct pci_controller *hose = hose_head; + + if (!hose) + return -1; + + while (hose->next) + hose = hose->next; + + return hose->last_busno; +} + +pci_dev_t pci_find_devices(struct pci_device_id *ids, int index) +{ + struct pci_controller * hose; + u16 vendor, device; + u8 header_type; + pci_dev_t bdf; + int i, bus, found_multi = 0; + + for (hose = hose_head; hose; hose = hose->next) { +#ifdef CONFIG_SYS_SCSI_SCAN_BUS_REVERSE + for (bus = hose->last_busno; bus >= hose->first_busno; bus--) +#else + for (bus = hose->first_busno; bus <= hose->last_busno; bus++) +#endif + for (bdf = PCI_BDF(bus, 0, 0); +#if defined(CONFIG_ELPPC) || defined(CONFIG_PPMC7XX) + bdf < PCI_BDF(bus, PCI_MAX_PCI_DEVICES - 1, + PCI_MAX_PCI_FUNCTIONS - 1); +#else + bdf < PCI_BDF(bus + 1, 0, 0); +#endif + bdf += PCI_BDF(0, 0, 1)) { + if (!PCI_FUNC(bdf)) { + pci_read_config_byte(bdf, + PCI_HEADER_TYPE, + &header_type); + + found_multi = header_type & 0x80; + } else { + if (!found_multi) + continue; + } + + pci_read_config_word(bdf, + PCI_VENDOR_ID, + &vendor); + pci_read_config_word(bdf, + PCI_DEVICE_ID, + &device); + + for (i = 0; ids[i].vendor != 0; i++) { + if (vendor == ids[i].vendor && + device == ids[i].device) { + if (index <= 0) + return bdf; + + index--; + } + } + } + } + + return -1; +} + +pci_dev_t pci_find_device(unsigned int vendor, unsigned int device, int index) +{ + static struct pci_device_id ids[2] = {{}, {0, 0}}; + + ids[0].vendor = vendor; + ids[0].device = device; + + return pci_find_devices(ids, index); +} + +/* + * + */ + +int __pci_hose_phys_to_bus(struct pci_controller *hose, + phys_addr_t phys_addr, + unsigned long flags, + unsigned long skip_mask, + pci_addr_t *ba) +{ + struct pci_region *res; + pci_addr_t bus_addr; + int i; + + for (i = 0; i < hose->region_count; i++) { + res = &hose->regions[i]; + + if (((res->flags ^ flags) & PCI_REGION_TYPE) != 0) + continue; + + if (res->flags & skip_mask) + continue; + + bus_addr = phys_addr - res->phys_start + res->bus_start; + + if (bus_addr >= res->bus_start && + bus_addr < res->bus_start + res->size) { + *ba = bus_addr; + return 0; + } + } + + return 1; +} + +pci_addr_t pci_hose_phys_to_bus (struct pci_controller *hose, + phys_addr_t phys_addr, + unsigned long flags) +{ + pci_addr_t bus_addr = 0; + int ret; + + if (!hose) { + puts("pci_hose_phys_to_bus: invalid hose\n"); + return bus_addr; + } + + /* + * if PCI_REGION_MEM is set we do a two pass search with preference + * on matches that don't have PCI_REGION_SYS_MEMORY set + */ + if ((flags & PCI_REGION_MEM) == PCI_REGION_MEM) { + ret = __pci_hose_phys_to_bus(hose, phys_addr, + flags, PCI_REGION_SYS_MEMORY, &bus_addr); + if (!ret) + return bus_addr; + } + + ret = __pci_hose_phys_to_bus(hose, phys_addr, flags, 0, &bus_addr); + + if (ret) + puts("pci_hose_phys_to_bus: invalid physical address\n"); + + return bus_addr; +} + +int __pci_hose_bus_to_phys(struct pci_controller *hose, + pci_addr_t bus_addr, + unsigned long flags, + unsigned long skip_mask, + phys_addr_t *pa) +{ + struct pci_region *res; + int i; + + for (i = 0; i < hose->region_count; i++) { + res = &hose->regions[i]; + + if (((res->flags ^ flags) & PCI_REGION_TYPE) != 0) + continue; + + if (res->flags & skip_mask) + continue; + + if (bus_addr >= res->bus_start && + bus_addr < res->bus_start + res->size) { + *pa = (bus_addr - res->bus_start + res->phys_start); + return 0; + } + } + + return 1; +} + +phys_addr_t pci_hose_bus_to_phys(struct pci_controller* hose, + pci_addr_t bus_addr, + unsigned long flags) +{ + phys_addr_t phys_addr = 0; + int ret; + + if (!hose) { + puts("pci_hose_bus_to_phys: invalid hose\n"); + return phys_addr; + } + + /* + * if PCI_REGION_MEM is set we do a two pass search with preference + * on matches that don't have PCI_REGION_SYS_MEMORY set + */ + if ((flags & PCI_REGION_MEM) == PCI_REGION_MEM) { + ret = __pci_hose_bus_to_phys(hose, bus_addr, + flags, PCI_REGION_SYS_MEMORY, &phys_addr); + if (!ret) + return phys_addr; + } + + ret = __pci_hose_bus_to_phys(hose, bus_addr, flags, 0, &phys_addr); + + if (ret) + puts("pci_hose_bus_to_phys: invalid physical address\n"); + + return phys_addr; +} + +/* + * + */ + +int pci_hose_config_device(struct pci_controller *hose, + pci_dev_t dev, + unsigned long io, + pci_addr_t mem, + unsigned long command) +{ + u32 bar_response; + unsigned int old_command; + pci_addr_t bar_value; + pci_size_t bar_size; + unsigned char pin; + int bar, found_mem64; + + debug("PCI Config: I/O=0x%lx, Memory=0x%llx, Command=0x%lx\n", io, + (u64)mem, command); + + pci_hose_write_config_dword(hose, dev, PCI_COMMAND, 0); + + for (bar = PCI_BASE_ADDRESS_0; bar <= PCI_BASE_ADDRESS_5; bar += 4) { + pci_hose_write_config_dword(hose, dev, bar, 0xffffffff); + pci_hose_read_config_dword(hose, dev, bar, &bar_response); + + if (!bar_response) + continue; + + found_mem64 = 0; + + /* Check the BAR type and set our address mask */ + if (bar_response & PCI_BASE_ADDRESS_SPACE) { + bar_size = ~(bar_response & PCI_BASE_ADDRESS_IO_MASK) + 1; + /* round up region base address to a multiple of size */ + io = ((io - 1) | (bar_size - 1)) + 1; + bar_value = io; + /* compute new region base address */ + io = io + bar_size; + } else { + if ((bar_response & PCI_BASE_ADDRESS_MEM_TYPE_MASK) == + PCI_BASE_ADDRESS_MEM_TYPE_64) { + u32 bar_response_upper; + u64 bar64; + pci_hose_write_config_dword(hose, dev, bar + 4, + 0xffffffff); + pci_hose_read_config_dword(hose, dev, bar + 4, + &bar_response_upper); + + bar64 = ((u64)bar_response_upper << 32) | bar_response; + + bar_size = ~(bar64 & PCI_BASE_ADDRESS_MEM_MASK) + 1; + found_mem64 = 1; + } else { + bar_size = (u32)(~(bar_response & PCI_BASE_ADDRESS_MEM_MASK) + 1); + } + + /* round up region base address to multiple of size */ + mem = ((mem - 1) | (bar_size - 1)) + 1; + bar_value = mem; + /* compute new region base address */ + mem = mem + bar_size; + } + + /* Write it out and update our limit */ + pci_hose_write_config_dword (hose, dev, bar, (u32)bar_value); + + if (found_mem64) { + bar += 4; +#ifdef CONFIG_SYS_PCI_64BIT + pci_hose_write_config_dword(hose, dev, bar, + (u32)(bar_value >> 32)); +#else + pci_hose_write_config_dword(hose, dev, bar, 0x00000000); +#endif + } + } + + /* Configure Cache Line Size Register */ + pci_hose_write_config_byte(hose, dev, PCI_CACHE_LINE_SIZE, 0x08); + + /* Configure Latency Timer */ + pci_hose_write_config_byte(hose, dev, PCI_LATENCY_TIMER, 0x80); + + /* Disable interrupt line, if device says it wants to use interrupts */ + pci_hose_read_config_byte(hose, dev, PCI_INTERRUPT_PIN, &pin); + if (pin != 0) { + pci_hose_write_config_byte(hose, dev, PCI_INTERRUPT_LINE, 0xff); + } + + pci_hose_read_config_dword(hose, dev, PCI_COMMAND, &old_command); + pci_hose_write_config_dword(hose, dev, PCI_COMMAND, + (old_command & 0xffff0000) | command); + + return 0; +} + +/* + * + */ + +struct pci_config_table *pci_find_config(struct pci_controller *hose, + unsigned short class, + unsigned int vendor, + unsigned int device, + unsigned int bus, + unsigned int dev, + unsigned int func) +{ + struct pci_config_table *table; + + for (table = hose->config_table; table && table->vendor; table++) { + if ((table->vendor == PCI_ANY_ID || table->vendor == vendor) && + (table->device == PCI_ANY_ID || table->device == device) && + (table->class == PCI_ANY_ID || table->class == class) && + (table->bus == PCI_ANY_ID || table->bus == bus) && + (table->dev == PCI_ANY_ID || table->dev == dev) && + (table->func == PCI_ANY_ID || table->func == func)) { + return table; + } + } + + return NULL; +} + +void pci_cfgfunc_config_device(struct pci_controller *hose, + pci_dev_t dev, + struct pci_config_table *entry) +{ + pci_hose_config_device(hose, dev, entry->priv[0], entry->priv[1], + entry->priv[2]); +} + +void pci_cfgfunc_do_nothing(struct pci_controller *hose, + pci_dev_t dev, struct pci_config_table *entry) +{ +} + +/* + * HJF: Changed this to return int. I think this is required + * to get the correct result when scanning bridges + */ +extern int pciauto_config_device(struct pci_controller *hose, pci_dev_t dev); + +#if defined(CONFIG_CMD_PCI) || defined(CONFIG_PCI_SCAN_SHOW) +const char * pci_class_str(u8 class) +{ + switch (class) { + case PCI_CLASS_NOT_DEFINED: + return "Build before PCI Rev2.0"; + break; + case PCI_BASE_CLASS_STORAGE: + return "Mass storage controller"; + break; + case PCI_BASE_CLASS_NETWORK: + return "Network controller"; + break; + case PCI_BASE_CLASS_DISPLAY: + return "Display controller"; + break; + case PCI_BASE_CLASS_MULTIMEDIA: + return "Multimedia device"; + break; + case PCI_BASE_CLASS_MEMORY: + return "Memory controller"; + break; + case PCI_BASE_CLASS_BRIDGE: + return "Bridge device"; + break; + case PCI_BASE_CLASS_COMMUNICATION: + return "Simple comm. controller"; + break; + case PCI_BASE_CLASS_SYSTEM: + return "Base system peripheral"; + break; + case PCI_BASE_CLASS_INPUT: + return "Input device"; + break; + case PCI_BASE_CLASS_DOCKING: + return "Docking station"; + break; + case PCI_BASE_CLASS_PROCESSOR: + return "Processor"; + break; + case PCI_BASE_CLASS_SERIAL: + return "Serial bus controller"; + break; + case PCI_BASE_CLASS_INTELLIGENT: + return "Intelligent controller"; + break; + case PCI_BASE_CLASS_SATELLITE: + return "Satellite controller"; + break; + case PCI_BASE_CLASS_CRYPT: + return "Cryptographic device"; + break; + case PCI_BASE_CLASS_SIGNAL_PROCESSING: + return "DSP"; + break; + case PCI_CLASS_OTHERS: + return "Does not fit any class"; + break; + default: + return "???"; + break; + }; +} +#endif /* CONFIG_CMD_PCI || CONFIG_PCI_SCAN_SHOW */ + +int __pci_skip_dev(struct pci_controller *hose, pci_dev_t dev) +{ + /* + * Check if pci device should be skipped in configuration + */ + if (dev == PCI_BDF(hose->first_busno, 0, 0)) { +#if defined(CONFIG_PCI_CONFIG_HOST_BRIDGE) /* don't skip host bridge */ + /* + * Only skip configuration if "pciconfighost" is not set + */ + if (getenv("pciconfighost") == NULL) + return 1; +#else + return 1; +#endif + } + + return 0; +} +int pci_skip_dev(struct pci_controller *hose, pci_dev_t dev) + __attribute__((weak, alias("__pci_skip_dev"))); + +#ifdef CONFIG_PCI_SCAN_SHOW +int __pci_print_dev(struct pci_controller *hose, pci_dev_t dev) +{ + if (dev == PCI_BDF(hose->first_busno, 0, 0)) + return 0; + + return 1; +} +int pci_print_dev(struct pci_controller *hose, pci_dev_t dev) + __attribute__((weak, alias("__pci_print_dev"))); +#endif /* CONFIG_PCI_SCAN_SHOW */ + +int pci_hose_scan_bus(struct pci_controller *hose, int bus) +{ + unsigned int sub_bus, found_multi = 0; + unsigned short vendor, device, class; + unsigned char header_type; +#ifndef CONFIG_PCI_PNP + struct pci_config_table *cfg; +#endif + pci_dev_t dev; +#ifdef CONFIG_PCI_SCAN_SHOW + static int indent = 0; +#endif + + sub_bus = bus; + + for (dev = PCI_BDF(bus,0,0); + dev < PCI_BDF(bus, PCI_MAX_PCI_DEVICES - 1, + PCI_MAX_PCI_FUNCTIONS - 1); + dev += PCI_BDF(0, 0, 1)) { + + if (pci_skip_dev(hose, dev)) + continue; + + if (PCI_FUNC(dev) && !found_multi) + continue; + + pci_hose_read_config_byte(hose, dev, PCI_HEADER_TYPE, &header_type); + + pci_hose_read_config_word(hose, dev, PCI_VENDOR_ID, &vendor); + + if (vendor == 0xffff || vendor == 0x0000) + continue; + + if (!PCI_FUNC(dev)) + found_multi = header_type & 0x80; + + debug("PCI Scan: Found Bus %d, Device %d, Function %d\n", + PCI_BUS(dev), PCI_DEV(dev), PCI_FUNC(dev)); + + pci_hose_read_config_word(hose, dev, PCI_DEVICE_ID, &device); + pci_hose_read_config_word(hose, dev, PCI_CLASS_DEVICE, &class); + +#ifdef CONFIG_PCI_SCAN_SHOW + indent++; + + /* Print leading space, including bus indentation */ + printf("%*c", indent + 1, ' '); + + if (pci_print_dev(hose, dev)) { + printf("%02x:%02x.%-*x - %04x:%04x - %s\n", + PCI_BUS(dev), PCI_DEV(dev), 6 - indent, PCI_FUNC(dev), + vendor, device, pci_class_str(class >> 8)); + } +#endif + +#ifdef CONFIG_PCI_PNP + sub_bus = max(pciauto_config_device(hose, dev), sub_bus); +#else + cfg = pci_find_config(hose, class, vendor, device, + PCI_BUS(dev), PCI_DEV(dev), PCI_FUNC(dev)); + if (cfg) { + cfg->config_device(hose, dev, cfg); + sub_bus = max(sub_bus, hose->current_busno); + } +#endif + +#ifdef CONFIG_PCI_SCAN_SHOW + indent--; +#endif + + if (hose->fixup_irq) + hose->fixup_irq(hose, dev); + } + + return sub_bus; +} + +int pci_hose_scan(struct pci_controller *hose) +{ +#if defined(CONFIG_PCI_BOOTDELAY) + static int pcidelay_done; + char *s; + int i; + + if (!pcidelay_done) { + /* wait "pcidelay" ms (if defined)... */ + s = getenv("pcidelay"); + if (s) { + int val = simple_strtoul(s, NULL, 10); + for (i = 0; i < val; i++) + udelay(1000); + } + pcidelay_done = 1; + } +#endif /* CONFIG_PCI_BOOTDELAY */ + + /* + * Start scan at current_busno. + * PCIe will start scan at first_busno+1. + */ + /* For legacy support, ensure current >= first */ + if (hose->first_busno > hose->current_busno) + hose->current_busno = hose->first_busno; +#ifdef CONFIG_PCI_PNP + pciauto_config_init(hose); +#endif + return pci_hose_scan_bus(hose, hose->current_busno); +} + +void pci_init(void) +{ + hose_head = NULL; + + /* now call board specific pci_init()... */ + pci_init_board(); +} + +/* Returns the address of the requested capability structure within the + * device's PCI configuration space or 0 in case the device does not + * support it. + * */ +int pci_hose_find_capability(struct pci_controller *hose, pci_dev_t dev, + int cap) +{ + int pos; + u8 hdr_type; + + pci_hose_read_config_byte(hose, dev, PCI_HEADER_TYPE, &hdr_type); + + pos = pci_hose_find_cap_start(hose, dev, hdr_type & 0x7F); + + if (pos) + pos = pci_find_cap(hose, dev, pos, cap); + + return pos; +} + +/* Find the header pointer to the Capabilities*/ +int pci_hose_find_cap_start(struct pci_controller *hose, pci_dev_t dev, + u8 hdr_type) +{ + u16 status; + + pci_hose_read_config_word(hose, dev, PCI_STATUS, &status); + + if (!(status & PCI_STATUS_CAP_LIST)) + return 0; + + switch (hdr_type) { + case PCI_HEADER_TYPE_NORMAL: + case PCI_HEADER_TYPE_BRIDGE: + return PCI_CAPABILITY_LIST; + case PCI_HEADER_TYPE_CARDBUS: + return PCI_CB_CAPABILITY_LIST; + default: + return 0; + } +} + +int pci_find_cap(struct pci_controller *hose, pci_dev_t dev, int pos, int cap) +{ + int ttl = PCI_FIND_CAP_TTL; + u8 id; + u8 next_pos; + + while (ttl--) { + pci_hose_read_config_byte(hose, dev, pos, &next_pos); + if (next_pos < CAP_START_POS) + break; + next_pos &= ~3; + pos = (int) next_pos; + pci_hose_read_config_byte(hose, dev, + pos + PCI_CAP_LIST_ID, &id); + if (id == 0xff) + break; + if (id == cap) + return pos; + pos += PCI_CAP_LIST_NEXT; + } + return 0; +} diff --git a/roms/u-boot/drivers/pci/pci_auto.c b/roms/u-boot/drivers/pci/pci_auto.c new file mode 100644 index 00000000..86ba6b52 --- /dev/null +++ b/roms/u-boot/drivers/pci/pci_auto.c @@ -0,0 +1,451 @@ +/* + * arch/powerpc/kernel/pci_auto.c + * + * PCI autoconfiguration library + * + * Author: Matt Porter <mporter@mvista.com> + * + * Copyright 2000 MontaVista Software Inc. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> + +#include <pci.h> + +#undef DEBUG +#ifdef DEBUG +#define DEBUGF(x...) printf(x) +#else +#define DEBUGF(x...) +#endif /* DEBUG */ + +#define PCIAUTO_IDE_MODE_MASK 0x05 + +/* the user can define CONFIG_SYS_PCI_CACHE_LINE_SIZE to avoid problems */ +#ifndef CONFIG_SYS_PCI_CACHE_LINE_SIZE +#define CONFIG_SYS_PCI_CACHE_LINE_SIZE 8 +#endif + +/* + * + */ + +void pciauto_region_init(struct pci_region *res) +{ + /* + * Avoid allocating PCI resources from address 0 -- this is illegal + * according to PCI 2.1 and moreover, this is known to cause Linux IDE + * drivers to fail. Use a reasonable starting value of 0x1000 instead. + */ + res->bus_lower = res->bus_start ? res->bus_start : 0x1000; +} + +void pciauto_region_align(struct pci_region *res, pci_size_t size) +{ + res->bus_lower = ((res->bus_lower - 1) | (size - 1)) + 1; +} + +int pciauto_region_allocate(struct pci_region *res, pci_size_t size, + pci_addr_t *bar) +{ + pci_addr_t addr; + + if (!res) { + DEBUGF("No resource"); + goto error; + } + + addr = ((res->bus_lower - 1) | (size - 1)) + 1; + + if (addr - res->bus_start + size > res->size) { + DEBUGF("No room in resource"); + goto error; + } + + res->bus_lower = addr + size; + + DEBUGF("address=0x%llx bus_lower=0x%llx", (u64)addr, (u64)res->bus_lower); + + *bar = addr; + return 0; + + error: + *bar = (pci_addr_t)-1; + return -1; +} + +/* + * + */ + +void pciauto_setup_device(struct pci_controller *hose, + pci_dev_t dev, int bars_num, + struct pci_region *mem, + struct pci_region *prefetch, + struct pci_region *io) +{ + u32 bar_response; + pci_size_t bar_size; + u16 cmdstat = 0; + int bar, bar_nr = 0; +#ifndef CONFIG_PCI_ENUM_ONLY + pci_addr_t bar_value; + struct pci_region *bar_res; + int found_mem64 = 0; +#endif + + pci_hose_read_config_word(hose, dev, PCI_COMMAND, &cmdstat); + cmdstat = (cmdstat & ~(PCI_COMMAND_IO | PCI_COMMAND_MEMORY)) | PCI_COMMAND_MASTER; + + for (bar = PCI_BASE_ADDRESS_0; + bar < PCI_BASE_ADDRESS_0 + (bars_num * 4); bar += 4) { + /* Tickle the BAR and get the response */ +#ifndef CONFIG_PCI_ENUM_ONLY + pci_hose_write_config_dword(hose, dev, bar, 0xffffffff); +#endif + pci_hose_read_config_dword(hose, dev, bar, &bar_response); + + /* If BAR is not implemented go to the next BAR */ + if (!bar_response) + continue; + +#ifndef CONFIG_PCI_ENUM_ONLY + found_mem64 = 0; +#endif + + /* Check the BAR type and set our address mask */ + if (bar_response & PCI_BASE_ADDRESS_SPACE) { + bar_size = ((~(bar_response & PCI_BASE_ADDRESS_IO_MASK)) + & 0xffff) + 1; +#ifndef CONFIG_PCI_ENUM_ONLY + bar_res = io; +#endif + + DEBUGF("PCI Autoconfig: BAR %d, I/O, size=0x%llx, ", bar_nr, (u64)bar_size); + } else { + if ((bar_response & PCI_BASE_ADDRESS_MEM_TYPE_MASK) == + PCI_BASE_ADDRESS_MEM_TYPE_64) { + u32 bar_response_upper; + u64 bar64; + +#ifndef CONFIG_PCI_ENUM_ONLY + pci_hose_write_config_dword(hose, dev, bar + 4, + 0xffffffff); +#endif + pci_hose_read_config_dword(hose, dev, bar + 4, + &bar_response_upper); + + bar64 = ((u64)bar_response_upper << 32) | bar_response; + + bar_size = ~(bar64 & PCI_BASE_ADDRESS_MEM_MASK) + 1; +#ifndef CONFIG_PCI_ENUM_ONLY + found_mem64 = 1; +#endif + } else { + bar_size = (u32)(~(bar_response & PCI_BASE_ADDRESS_MEM_MASK) + 1); + } +#ifndef CONFIG_PCI_ENUM_ONLY + if (prefetch && (bar_response & PCI_BASE_ADDRESS_MEM_PREFETCH)) + bar_res = prefetch; + else + bar_res = mem; +#endif + + DEBUGF("PCI Autoconfig: BAR %d, Mem, size=0x%llx, ", bar_nr, (u64)bar_size); + } + +#ifndef CONFIG_PCI_ENUM_ONLY + if (pciauto_region_allocate(bar_res, bar_size, &bar_value) == 0) { + /* Write it out and update our limit */ + pci_hose_write_config_dword(hose, dev, bar, (u32)bar_value); + + if (found_mem64) { + bar += 4; +#ifdef CONFIG_SYS_PCI_64BIT + pci_hose_write_config_dword(hose, dev, bar, (u32)(bar_value>>32)); +#else + /* + * If we are a 64-bit decoder then increment to the + * upper 32 bits of the bar and force it to locate + * in the lower 4GB of memory. + */ + pci_hose_write_config_dword(hose, dev, bar, 0x00000000); +#endif + } + + } +#endif + cmdstat |= (bar_response & PCI_BASE_ADDRESS_SPACE) ? + PCI_COMMAND_IO : PCI_COMMAND_MEMORY; + + DEBUGF("\n"); + + bar_nr++; + } + + pci_hose_write_config_word(hose, dev, PCI_COMMAND, cmdstat); + pci_hose_write_config_byte(hose, dev, PCI_CACHE_LINE_SIZE, + CONFIG_SYS_PCI_CACHE_LINE_SIZE); + pci_hose_write_config_byte(hose, dev, PCI_LATENCY_TIMER, 0x80); +} + +void pciauto_prescan_setup_bridge(struct pci_controller *hose, + pci_dev_t dev, int sub_bus) +{ + struct pci_region *pci_mem = hose->pci_mem; + struct pci_region *pci_prefetch = hose->pci_prefetch; + struct pci_region *pci_io = hose->pci_io; + u16 cmdstat; + + pci_hose_read_config_word(hose, dev, PCI_COMMAND, &cmdstat); + + /* Configure bus number registers */ + pci_hose_write_config_byte(hose, dev, PCI_PRIMARY_BUS, + PCI_BUS(dev) - hose->first_busno); + pci_hose_write_config_byte(hose, dev, PCI_SECONDARY_BUS, + sub_bus - hose->first_busno); + pci_hose_write_config_byte(hose, dev, PCI_SUBORDINATE_BUS, 0xff); + + if (pci_mem) { + /* Round memory allocator to 1MB boundary */ + pciauto_region_align(pci_mem, 0x100000); + + /* Set up memory and I/O filter limits, assume 32-bit I/O space */ + pci_hose_write_config_word(hose, dev, PCI_MEMORY_BASE, + (pci_mem->bus_lower & 0xfff00000) >> 16); + + cmdstat |= PCI_COMMAND_MEMORY; + } + + if (pci_prefetch) { + /* Round memory allocator to 1MB boundary */ + pciauto_region_align(pci_prefetch, 0x100000); + + /* Set up memory and I/O filter limits, assume 32-bit I/O space */ + pci_hose_write_config_word(hose, dev, PCI_PREF_MEMORY_BASE, + (pci_prefetch->bus_lower & 0xfff00000) >> 16); + + cmdstat |= PCI_COMMAND_MEMORY; + } else { + /* We don't support prefetchable memory for now, so disable */ + pci_hose_write_config_word(hose, dev, PCI_PREF_MEMORY_BASE, 0x1000); + pci_hose_write_config_word(hose, dev, PCI_PREF_MEMORY_LIMIT, 0x0); + } + + if (pci_io) { + /* Round I/O allocator to 4KB boundary */ + pciauto_region_align(pci_io, 0x1000); + + pci_hose_write_config_byte(hose, dev, PCI_IO_BASE, + (pci_io->bus_lower & 0x0000f000) >> 8); + pci_hose_write_config_word(hose, dev, PCI_IO_BASE_UPPER16, + (pci_io->bus_lower & 0xffff0000) >> 16); + + cmdstat |= PCI_COMMAND_IO; + } + + /* Enable memory and I/O accesses, enable bus master */ + pci_hose_write_config_word(hose, dev, PCI_COMMAND, + cmdstat | PCI_COMMAND_MASTER); +} + +void pciauto_postscan_setup_bridge(struct pci_controller *hose, + pci_dev_t dev, int sub_bus) +{ + struct pci_region *pci_mem = hose->pci_mem; + struct pci_region *pci_prefetch = hose->pci_prefetch; + struct pci_region *pci_io = hose->pci_io; + + /* Configure bus number registers */ + pci_hose_write_config_byte(hose, dev, PCI_SUBORDINATE_BUS, + sub_bus - hose->first_busno); + + if (pci_mem) { + /* Round memory allocator to 1MB boundary */ + pciauto_region_align(pci_mem, 0x100000); + + pci_hose_write_config_word(hose, dev, PCI_MEMORY_LIMIT, + (pci_mem->bus_lower - 1) >> 16); + } + + if (pci_prefetch) { + /* Round memory allocator to 1MB boundary */ + pciauto_region_align(pci_prefetch, 0x100000); + + pci_hose_write_config_word(hose, dev, PCI_PREF_MEMORY_LIMIT, + (pci_prefetch->bus_lower - 1) >> 16); + } + + if (pci_io) { + /* Round I/O allocator to 4KB boundary */ + pciauto_region_align(pci_io, 0x1000); + + pci_hose_write_config_byte(hose, dev, PCI_IO_LIMIT, + ((pci_io->bus_lower - 1) & 0x0000f000) >> 8); + pci_hose_write_config_word(hose, dev, PCI_IO_LIMIT_UPPER16, + ((pci_io->bus_lower - 1) & 0xffff0000) >> 16); + } +} + +/* + * + */ + +void pciauto_config_init(struct pci_controller *hose) +{ + int i; + + hose->pci_io = hose->pci_mem = hose->pci_prefetch = NULL; + + for (i = 0; i < hose->region_count; i++) { + switch(hose->regions[i].flags) { + case PCI_REGION_IO: + if (!hose->pci_io || + hose->pci_io->size < hose->regions[i].size) + hose->pci_io = hose->regions + i; + break; + case PCI_REGION_MEM: + if (!hose->pci_mem || + hose->pci_mem->size < hose->regions[i].size) + hose->pci_mem = hose->regions + i; + break; + case (PCI_REGION_MEM | PCI_REGION_PREFETCH): + if (!hose->pci_prefetch || + hose->pci_prefetch->size < hose->regions[i].size) + hose->pci_prefetch = hose->regions + i; + break; + } + } + + + if (hose->pci_mem) { + pciauto_region_init(hose->pci_mem); + + DEBUGF("PCI Autoconfig: Bus Memory region: [0x%llx-0x%llx],\n" + "\t\tPhysical Memory [%llx-%llxx]\n", + (u64)hose->pci_mem->bus_start, + (u64)(hose->pci_mem->bus_start + hose->pci_mem->size - 1), + (u64)hose->pci_mem->phys_start, + (u64)(hose->pci_mem->phys_start + hose->pci_mem->size - 1)); + } + + if (hose->pci_prefetch) { + pciauto_region_init(hose->pci_prefetch); + + DEBUGF("PCI Autoconfig: Bus Prefetchable Mem: [0x%llx-0x%llx],\n" + "\t\tPhysical Memory [%llx-%llx]\n", + (u64)hose->pci_prefetch->bus_start, + (u64)(hose->pci_prefetch->bus_start + + hose->pci_prefetch->size - 1), + (u64)hose->pci_prefetch->phys_start, + (u64)(hose->pci_prefetch->phys_start + + hose->pci_prefetch->size - 1)); + } + + if (hose->pci_io) { + pciauto_region_init(hose->pci_io); + + DEBUGF("PCI Autoconfig: Bus I/O region: [0x%llx-0x%llx],\n" + "\t\tPhysical Memory: [%llx-%llx]\n", + (u64)hose->pci_io->bus_start, + (u64)(hose->pci_io->bus_start + hose->pci_io->size - 1), + (u64)hose->pci_io->phys_start, + (u64)(hose->pci_io->phys_start + hose->pci_io->size - 1)); + + } +} + +/* + * HJF: Changed this to return int. I think this is required + * to get the correct result when scanning bridges + */ +int pciauto_config_device(struct pci_controller *hose, pci_dev_t dev) +{ + unsigned int sub_bus = PCI_BUS(dev); + unsigned short class; + unsigned char prg_iface; + int n; + + pci_hose_read_config_word(hose, dev, PCI_CLASS_DEVICE, &class); + + switch (class) { + case PCI_CLASS_BRIDGE_PCI: + hose->current_busno++; + pciauto_setup_device(hose, dev, 2, hose->pci_mem, + hose->pci_prefetch, hose->pci_io); + + DEBUGF("PCI Autoconfig: Found P2P bridge, device %d\n", PCI_DEV(dev)); + + /* Passing in current_busno allows for sibling P2P bridges */ + pciauto_prescan_setup_bridge(hose, dev, hose->current_busno); + /* + * need to figure out if this is a subordinate bridge on the bus + * to be able to properly set the pri/sec/sub bridge registers. + */ + n = pci_hose_scan_bus(hose, hose->current_busno); + + /* figure out the deepest we've gone for this leg */ + sub_bus = max(n, sub_bus); + pciauto_postscan_setup_bridge(hose, dev, sub_bus); + + sub_bus = hose->current_busno; + break; + + case PCI_CLASS_STORAGE_IDE: + pci_hose_read_config_byte(hose, dev, PCI_CLASS_PROG, &prg_iface); + if (!(prg_iface & PCIAUTO_IDE_MODE_MASK)) { + DEBUGF("PCI Autoconfig: Skipping legacy mode IDE controller\n"); + return sub_bus; + } + + pciauto_setup_device(hose, dev, 6, hose->pci_mem, + hose->pci_prefetch, hose->pci_io); + break; + + case PCI_CLASS_BRIDGE_CARDBUS: + /* + * just do a minimal setup of the bridge, + * let the OS take care of the rest + */ + pciauto_setup_device(hose, dev, 0, hose->pci_mem, + hose->pci_prefetch, hose->pci_io); + + DEBUGF("PCI Autoconfig: Found P2CardBus bridge, device %d\n", + PCI_DEV(dev)); + + hose->current_busno++; + break; + +#if defined(CONFIG_PCIAUTO_SKIP_HOST_BRIDGE) + case PCI_CLASS_BRIDGE_OTHER: + DEBUGF("PCI Autoconfig: Skipping bridge device %d\n", + PCI_DEV(dev)); + break; +#endif +#if defined(CONFIG_MPC834x) && !defined(CONFIG_VME8349) + case PCI_CLASS_BRIDGE_OTHER: + /* + * The host/PCI bridge 1 seems broken in 8349 - it presents + * itself as 'PCI_CLASS_BRIDGE_OTHER' and appears as an _agent_ + * device claiming resources io/mem/irq.. we only allow for + * the PIMMR window to be allocated (BAR0 - 1MB size) + */ + DEBUGF("PCI Autoconfig: Broken bridge found, only minimal config\n"); + pciauto_setup_device(hose, dev, 0, hose->pci_mem, + hose->pci_prefetch, hose->pci_io); + break; +#endif + + case PCI_CLASS_PROCESSOR_POWERPC: /* an agent or end-point */ + DEBUGF("PCI AutoConfig: Found PowerPC device\n"); + + default: + pciauto_setup_device(hose, dev, 6, hose->pci_mem, + hose->pci_prefetch, hose->pci_io); + break; + } + + return sub_bus; +} diff --git a/roms/u-boot/drivers/pci/pci_ftpci100.c b/roms/u-boot/drivers/pci/pci_ftpci100.c new file mode 100644 index 00000000..5ee8b6b4 --- /dev/null +++ b/roms/u-boot/drivers/pci/pci_ftpci100.c @@ -0,0 +1,318 @@ +/* + * Faraday FTPCI100 PCI Bridge Controller Device Driver Implementation + * + * Copyright (C) 2011 Andes Technology Corporation + * Gavin Guo, Andes Technology Corporation <gavinguo@andestech.com> + * Macpaul Lin, Andes Technology Corporation <macpaul@andestech.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ +#include <common.h> +#include <malloc.h> +#include <pci.h> + +#include <faraday/ftpci100.h> + +#include <asm/io.h> +#include <asm/types.h> /* u32, u16.... used by pci.h */ + +struct ftpci100_data { + unsigned int reg_base; + unsigned int io_base; + unsigned int mem_base; + unsigned int mmio_base; + unsigned int ndevs; +}; + +static struct pci_config devs[FTPCI100_MAX_FUNCTIONS]; +static struct pci_controller local_hose; + +static void setup_pci_bar(unsigned int bus, unsigned int dev, unsigned func, + unsigned char header, struct ftpci100_data *priv) +{ + struct pci_controller *hose = (struct pci_controller *)&local_hose; + unsigned int i, tmp32, bar_no, iovsmem = 1; + pci_dev_t dev_nu; + + /* A device is present, add an entry to the array */ + devs[priv->ndevs].bus = bus; + devs[priv->ndevs].dev = dev; + devs[priv->ndevs].func = func; + + dev_nu = PCI_BDF(bus, dev, func); + + if ((header & 0x7f) == 0x01) + /* PCI-PCI Bridge */ + bar_no = 2; + else + bar_no = 6; + + /* Allocate address spaces by configuring BARs */ + for (i = 0; i < bar_no; i++) { + pci_hose_write_config_dword(hose, dev_nu, + PCI_BASE_ADDRESS_0 + i * 4, 0xffffffff); + pci_hose_read_config_dword(hose, dev_nu, + PCI_BASE_ADDRESS_0 + i * 4, &tmp32); + + if (tmp32 == 0x0) + continue; + + /* IO space */ + if (tmp32 & 0x1) { + iovsmem = 0; + unsigned int size_mask = ~(tmp32 & 0xfffffffc); + + if (priv->io_base & size_mask) + priv->io_base = (priv->io_base & ~size_mask) + \ + size_mask + 1; + + devs[priv->ndevs].bar[i].addr = priv->io_base; + devs[priv->ndevs].bar[i].size = size_mask + 1; + + pci_hose_write_config_dword(hose, dev_nu, + PCI_BASE_ADDRESS_0 + i * 4, + priv->io_base); + + debug("Allocated IO address 0x%X-" \ + "0x%X for Bus %d, Device %d, Function %d\n", + priv->io_base, + priv->io_base + size_mask, bus, dev, func); + + priv->io_base += size_mask + 1; + } else { + /* Memory space */ + unsigned int is_64bit = ((tmp32 & 0x6) == 0x4); + unsigned int is_pref = tmp32 & 0x8; + unsigned int size_mask = ~(tmp32 & 0xfffffff0); + unsigned int alloc_base; + unsigned int *addr_mem_base; + + if (is_pref) + addr_mem_base = &priv->mem_base; + else + addr_mem_base = &priv->mmio_base; + + alloc_base = *addr_mem_base; + + if (alloc_base & size_mask) + alloc_base = (alloc_base & ~size_mask) \ + + size_mask + 1; + + pci_hose_write_config_dword(hose, dev_nu, + PCI_BASE_ADDRESS_0 + i * 4, alloc_base); + + debug("Allocated %s address 0x%X-" \ + "0x%X for Bus %d, Device %d, Function %d\n", + is_pref ? "MEM" : "MMIO", alloc_base, + alloc_base + size_mask, bus, dev, func); + + devs[priv->ndevs].bar[i].addr = alloc_base; + devs[priv->ndevs].bar[i].size = size_mask + 1; + + debug("BAR address BAR size\n"); + debug("%010x %08d\n", + devs[priv->ndevs].bar[0].addr, + devs[priv->ndevs].bar[0].size); + + alloc_base += size_mask + 1; + *addr_mem_base = alloc_base; + + if (is_64bit) { + i++; + pci_hose_write_config_dword(hose, dev_nu, + PCI_BASE_ADDRESS_0 + i * 4, 0x0); + } + } + } + + /* Enable Bus Master, Memory Space, and IO Space */ + pci_hose_read_config_dword(hose, dev_nu, PCI_CACHE_LINE_SIZE, &tmp32); + pci_hose_write_config_dword(hose, dev_nu, PCI_CACHE_LINE_SIZE, 0x08); + pci_hose_read_config_dword(hose, dev_nu, PCI_CACHE_LINE_SIZE, &tmp32); + + pci_hose_read_config_dword(hose, dev_nu, PCI_COMMAND, &tmp32); + + tmp32 &= 0xffff; + + if (iovsmem == 0) + tmp32 |= 0x5; + else + tmp32 |= 0x6; + + pci_hose_write_config_dword(hose, dev_nu, PCI_COMMAND, tmp32); +} + +static void pci_bus_scan(struct ftpci100_data *priv) +{ + struct pci_controller *hose = (struct pci_controller *)&local_hose; + unsigned int bus, dev, func; + pci_dev_t dev_nu; + unsigned int data32; + unsigned int tmp; + unsigned char header; + unsigned char int_pin; + unsigned int niobars; + unsigned int nmbars; + + priv->ndevs = 1; + + nmbars = 0; + niobars = 0; + + for (bus = 0; bus < MAX_BUS_NUM; bus++) + for (dev = 0; dev < MAX_DEV_NUM; dev++) + for (func = 0; func < MAX_FUN_NUM; func++) { + dev_nu = PCI_BDF(bus, dev, func); + pci_hose_read_config_dword(hose, dev_nu, + PCI_VENDOR_ID, &data32); + + /* + * some broken boards return 0 or ~0, + * if a slot is empty. + */ + if (data32 == 0xffffffff || + data32 == 0x00000000 || + data32 == 0x0000ffff || + data32 == 0xffff0000) + continue; + + pci_hose_read_config_dword(hose, dev_nu, + PCI_HEADER_TYPE, &tmp); + header = (unsigned char)tmp; + setup_pci_bar(bus, dev, func, header, priv); + + devs[priv->ndevs].v_id = (u16)(data32 & \ + 0x0000ffff); + + devs[priv->ndevs].d_id = (u16)((data32 & \ + 0xffff0000) >> 16); + + /* Figure out what INTX# line the card uses */ + pci_hose_read_config_byte(hose, dev_nu, + PCI_INTERRUPT_PIN, &int_pin); + + /* assign the appropriate irq line */ + if (int_pin > PCI_IRQ_LINES) { + printf("more irq lines than expect\n"); + } else if (int_pin != 0) { + /* This device uses an interrupt line */ + devs[priv->ndevs].pin = int_pin; + } + + pci_hose_read_config_dword(hose, dev_nu, + PCI_CLASS_DEVICE, &data32); + + debug("%06d %03d %03d " \ + "%04d %08x %08x " \ + "%03d %08x %06d %08x\n", + priv->ndevs, devs[priv->ndevs].bus, + devs[priv->ndevs].dev, + devs[priv->ndevs].func, + devs[priv->ndevs].d_id, + devs[priv->ndevs].v_id, + devs[priv->ndevs].pin, + devs[priv->ndevs].bar[0].addr, + devs[priv->ndevs].bar[0].size, + data32 >> 8); + + priv->ndevs++; + } +} + +static void ftpci_preinit(struct ftpci100_data *priv) +{ + struct ftpci100_ahbc *ftpci100; + struct pci_controller *hose = (struct pci_controller *)&local_hose; + u32 pci_config_addr; + u32 pci_config_data; + + priv->reg_base = CONFIG_FTPCI100_BASE; + priv->io_base = CONFIG_FTPCI100_BASE + CONFIG_FTPCI100_IO_SIZE; + priv->mmio_base = CONFIG_FTPCI100_MEM_BASE; + priv->mem_base = CONFIG_FTPCI100_MEM_BASE + CONFIG_FTPCI100_MEM_SIZE; + + ftpci100 = (struct ftpci100_ahbc *)priv->reg_base; + + pci_config_addr = (u32) &ftpci100->conf; + pci_config_data = (u32) &ftpci100->data; + + /* print device name */ + printf("FTPCI100\n"); + + /* dump basic configuration */ + debug("%s: Config addr is %08X, data port is %08X\n", + __func__, pci_config_addr, pci_config_data); + + /* PCI memory space */ + pci_set_region(hose->regions + 0, + CONFIG_PCI_MEM_BUS, + CONFIG_PCI_MEM_PHYS, + CONFIG_PCI_MEM_SIZE, + PCI_REGION_MEM); + hose->region_count++; + + /* PCI IO space */ + pci_set_region(hose->regions + 1, + CONFIG_PCI_IO_BUS, + CONFIG_PCI_IO_PHYS, + CONFIG_PCI_IO_SIZE, + PCI_REGION_IO); + hose->region_count++; + +#if defined(CONFIG_PCI_SYS_BUS) + /* PCI System Memory space */ + pci_set_region(hose->regions + 2, + CONFIG_PCI_SYS_BUS, + CONFIG_PCI_SYS_PHYS, + CONFIG_PCI_SYS_SIZE, + PCI_REGION_MEM | PCI_REGION_SYS_MEMORY); + hose->region_count++; +#endif + + /* setup indirect read/write function */ + pci_setup_indirect(hose, pci_config_addr, pci_config_data); + + /* register hose */ + pci_register_hose(hose); +} + +void pci_ftpci_init(void) +{ + struct ftpci100_data *priv = NULL; + struct pci_controller *hose = (struct pci_controller *)&local_hose; + pci_dev_t bridge_num; + + struct pci_device_id bridge_ids[] = { + {FTPCI100_BRIDGE_VENDORID, FTPCI100_BRIDGE_DEVICEID}, + {0, 0} + }; + + priv = malloc(sizeof(struct ftpci100_data)); + + if (!priv) { + printf("%s(): failed to malloc priv\n", __func__); + return; + } + + memset(priv, 0, sizeof(struct ftpci100_data)); + + ftpci_preinit(priv); + + debug("Device bus dev func deviceID vendorID pin address" \ + " size class\n"); + + pci_bus_scan(priv); + + /* + * Setup the PCI Bridge Window to 1GB, + * it will cause USB OHCI Host controller Unrecoverable Error + * if it is not set. + */ + bridge_num = pci_find_devices(bridge_ids, 0); + if (bridge_num == -1) { + printf("PCI Bridge not found\n"); + return; + } + pci_hose_write_config_dword(hose, bridge_num, PCI_MEM_BASE_SIZE1, + FTPCI100_BASE_ADR_SIZE(1024)); +} diff --git a/roms/u-boot/drivers/pci/pci_gt64120.c b/roms/u-boot/drivers/pci/pci_gt64120.c new file mode 100644 index 00000000..4756f142 --- /dev/null +++ b/roms/u-boot/drivers/pci/pci_gt64120.c @@ -0,0 +1,176 @@ +/* + * Copyright (C) 2013 Gabor Juhos <juhosg@openwrt.org> + * + * Based on the Linux implementation. + * Copyright (C) 1999, 2000, 2004 MIPS Technologies, Inc. + * Authors: Carsten Langgaard <carstenl@mips.com> + * Maciej W. Rozycki <macro@mips.com> + * + * SPDX-License-Identifier: GPL-2.0 + */ + +#include <common.h> +#include <gt64120.h> +#include <pci.h> +#include <pci_gt64120.h> + +#include <asm/io.h> + +#define PCI_ACCESS_READ 0 +#define PCI_ACCESS_WRITE 1 + +struct gt64120_regs { + u8 unused_000[0xc18]; + u32 intrcause; + u8 unused_c1c[0x0dc]; + u32 pci0_cfgaddr; + u32 pci0_cfgdata; +}; + +struct gt64120_pci_controller { + struct pci_controller hose; + struct gt64120_regs *regs; +}; + +static inline struct gt64120_pci_controller * +hose_to_gt64120(struct pci_controller *hose) +{ + return container_of(hose, struct gt64120_pci_controller, hose); +} + +#define GT_INTRCAUSE_ABORT_BITS \ + (GT_INTRCAUSE_MASABORT0_BIT | GT_INTRCAUSE_TARABORT0_BIT) + +static int gt_config_access(struct gt64120_pci_controller *gt, + unsigned char access_type, pci_dev_t bdf, + int where, u32 *data) +{ + unsigned int bus = PCI_BUS(bdf); + unsigned int dev = PCI_DEV(bdf); + unsigned int devfn = PCI_DEV(bdf) << 3 | PCI_FUNC(bdf); + u32 intr; + u32 addr; + u32 val; + + if (bus == 0 && dev >= 31) { + /* Because of a bug in the galileo (for slot 31). */ + return -1; + } + + if (access_type == PCI_ACCESS_WRITE) + debug("PCI WR %02x:%02x.%x reg:%02d data:%08x\n", + PCI_BUS(bdf), PCI_DEV(bdf), PCI_FUNC(bdf), where, *data); + + /* Clear cause register bits */ + writel(~GT_INTRCAUSE_ABORT_BITS, >->regs->intrcause); + + addr = GT_PCI0_CFGADDR_CONFIGEN_BIT; + addr |= bus << GT_PCI0_CFGADDR_BUSNUM_SHF; + addr |= devfn << GT_PCI0_CFGADDR_FUNCTNUM_SHF; + addr |= (where / 4) << GT_PCI0_CFGADDR_REGNUM_SHF; + + /* Setup address */ + writel(addr, >->regs->pci0_cfgaddr); + + if (access_type == PCI_ACCESS_WRITE) { + if (bus == 0 && dev == 0) { + /* + * The Galileo system controller is acting + * differently than other devices. + */ + val = *data; + } else { + val = cpu_to_le32(*data); + } + + writel(val, >->regs->pci0_cfgdata); + } else { + val = readl(>->regs->pci0_cfgdata); + + if (bus == 0 && dev == 0) { + /* + * The Galileo system controller is acting + * differently than other devices. + */ + *data = val; + } else { + *data = le32_to_cpu(val); + } + } + + /* Check for master or target abort */ + intr = readl(>->regs->intrcause); + if (intr & GT_INTRCAUSE_ABORT_BITS) { + /* Error occurred, clear abort bits */ + writel(~GT_INTRCAUSE_ABORT_BITS, >->regs->intrcause); + return -1; + } + + if (access_type == PCI_ACCESS_READ) + debug("PCI RD %02x:%02x.%x reg:%02d data:%08x\n", + PCI_BUS(bdf), PCI_DEV(bdf), PCI_FUNC(bdf), where, *data); + + return 0; +} + +static int gt_read_config_dword(struct pci_controller *hose, pci_dev_t dev, + int where, u32 *value) +{ + struct gt64120_pci_controller *gt = hose_to_gt64120(hose); + + *value = 0xffffffff; + return gt_config_access(gt, PCI_ACCESS_READ, dev, where, value); +} + +static int gt_write_config_dword(struct pci_controller *hose, pci_dev_t dev, + int where, u32 value) +{ + struct gt64120_pci_controller *gt = hose_to_gt64120(hose); + u32 data = value; + + return gt_config_access(gt, PCI_ACCESS_WRITE, dev, where, &data); +} + +void gt64120_pci_init(void *regs, unsigned long sys_bus, unsigned long sys_phys, + unsigned long sys_size, unsigned long mem_bus, + unsigned long mem_phys, unsigned long mem_size, + unsigned long io_bus, unsigned long io_phys, + unsigned long io_size) +{ + static struct gt64120_pci_controller global_gt; + struct gt64120_pci_controller *gt; + struct pci_controller *hose; + + gt = &global_gt; + gt->regs = regs; + + hose = >->hose; + + hose->first_busno = 0; + hose->last_busno = 0; + + /* System memory space */ + pci_set_region(&hose->regions[0], sys_bus, sys_phys, sys_size, + PCI_REGION_MEM | PCI_REGION_SYS_MEMORY); + + /* PCI memory space */ + pci_set_region(&hose->regions[1], mem_bus, mem_phys, mem_size, + PCI_REGION_MEM); + + /* PCI I/O space */ + pci_set_region(&hose->regions[2], io_bus, io_phys, io_size, + PCI_REGION_IO); + + hose->region_count = 3; + + pci_set_ops(hose, + pci_hose_read_config_byte_via_dword, + pci_hose_read_config_word_via_dword, + gt_read_config_dword, + pci_hose_write_config_byte_via_dword, + pci_hose_write_config_word_via_dword, + gt_write_config_dword); + + pci_register_hose(hose); + hose->last_busno = pci_hose_scan(hose); +} diff --git a/roms/u-boot/drivers/pci/pci_indirect.c b/roms/u-boot/drivers/pci/pci_indirect.c new file mode 100644 index 00000000..aee0bd6d --- /dev/null +++ b/roms/u-boot/drivers/pci/pci_indirect.c @@ -0,0 +1,125 @@ +/* + * Support for indirect PCI bridges. + * + * Copyright (C) 1998 Gabriel Paubert. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> + +#if !defined(__I386__) + +#include <asm/processor.h> +#include <asm/io.h> +#include <pci.h> + +#define cfg_read(val, addr, type, op) *val = op((type)(addr)) +#define cfg_write(val, addr, type, op) op((type *)(addr), (val)) + +#if defined(CONFIG_MPC8260) +#define INDIRECT_PCI_OP(rw, size, type, op, mask) \ +static int \ +indirect_##rw##_config_##size(struct pci_controller *hose, \ + pci_dev_t dev, int offset, type val) \ +{ \ + u32 b, d,f; \ + b = PCI_BUS(dev); d = PCI_DEV(dev); f = PCI_FUNC(dev); \ + b = b - hose->first_busno; \ + dev = PCI_BDF(b, d, f); \ + out_le32(hose->cfg_addr, dev | (offset & 0xfc) | 0x80000000); \ + sync(); \ + cfg_##rw(val, hose->cfg_data + (offset & mask), type, op); \ + return 0; \ +} +#elif defined(CONFIG_E500) || defined(CONFIG_MPC86xx) +#define INDIRECT_PCI_OP(rw, size, type, op, mask) \ +static int \ +indirect_##rw##_config_##size(struct pci_controller *hose, \ + pci_dev_t dev, int offset, type val) \ +{ \ + u32 b, d,f; \ + b = PCI_BUS(dev); d = PCI_DEV(dev); f = PCI_FUNC(dev); \ + b = b - hose->first_busno; \ + dev = PCI_BDF(b, d, f); \ + *(hose->cfg_addr) = dev | (offset & 0xfc) | ((offset & 0xf00) << 16) | 0x80000000; \ + sync(); \ + cfg_##rw(val, hose->cfg_data + (offset & mask), type, op); \ + return 0; \ +} +#elif defined(CONFIG_440GX) || defined(CONFIG_440GP) || defined(CONFIG_440SP) || \ + defined(CONFIG_440SPE) || defined(CONFIG_460EX) || defined(CONFIG_460GT) +#define INDIRECT_PCI_OP(rw, size, type, op, mask) \ +static int \ +indirect_##rw##_config_##size(struct pci_controller *hose, \ + pci_dev_t dev, int offset, type val) \ +{ \ + u32 b, d,f; \ + b = PCI_BUS(dev); d = PCI_DEV(dev); f = PCI_FUNC(dev); \ + b = b - hose->first_busno; \ + dev = PCI_BDF(b, d, f); \ + if (PCI_BUS(dev) > 0) \ + out_le32(hose->cfg_addr, dev | (offset & 0xfc) | 0x80000001); \ + else \ + out_le32(hose->cfg_addr, dev | (offset & 0xfc) | 0x80000000); \ + cfg_##rw(val, hose->cfg_data + (offset & mask), type, op); \ + return 0; \ +} +#else +#define INDIRECT_PCI_OP(rw, size, type, op, mask) \ +static int \ +indirect_##rw##_config_##size(struct pci_controller *hose, \ + pci_dev_t dev, int offset, type val) \ +{ \ + u32 b, d,f; \ + b = PCI_BUS(dev); d = PCI_DEV(dev); f = PCI_FUNC(dev); \ + b = b - hose->first_busno; \ + dev = PCI_BDF(b, d, f); \ + out_le32(hose->cfg_addr, dev | (offset & 0xfc) | 0x80000000); \ + cfg_##rw(val, hose->cfg_data + (offset & mask), type, op); \ + return 0; \ +} +#endif + +#define INDIRECT_PCI_OP_ERRATA6(rw, size, type, op, mask) \ +static int \ +indirect_##rw##_config_##size(struct pci_controller *hose, \ + pci_dev_t dev, int offset, type val) \ +{ \ + unsigned int msr = mfmsr(); \ + mtmsr(msr & ~(MSR_EE | MSR_CE)); \ + out_le32(hose->cfg_addr, dev | (offset & 0xfc) | 0x80000000); \ + cfg_##rw(val, hose->cfg_data + (offset & mask), type, op); \ + out_le32(hose->cfg_addr, 0x00000000); \ + mtmsr(msr); \ + return 0; \ +} + +INDIRECT_PCI_OP(read, byte, u8 *, in_8, 3) +INDIRECT_PCI_OP(read, word, u16 *, in_le16, 2) +INDIRECT_PCI_OP(read, dword, u32 *, in_le32, 0) +#ifdef CONFIG_405GP +INDIRECT_PCI_OP_ERRATA6(write, byte, u8, out_8, 3) +INDIRECT_PCI_OP_ERRATA6(write, word, u16, out_le16, 2) +INDIRECT_PCI_OP_ERRATA6(write, dword, u32, out_le32, 0) +#else +INDIRECT_PCI_OP(write, byte, u8, out_8, 3) +INDIRECT_PCI_OP(write, word, u16, out_le16, 2) +INDIRECT_PCI_OP(write, dword, u32, out_le32, 0) +#endif + +void pci_setup_indirect(struct pci_controller* hose, u32 cfg_addr, u32 cfg_data) +{ + pci_set_ops(hose, + indirect_read_config_byte, + indirect_read_config_word, + indirect_read_config_dword, + indirect_write_config_byte, + indirect_write_config_word, + indirect_write_config_dword); + + hose->cfg_addr = (unsigned int *) cfg_addr; + hose->cfg_data = (unsigned char *) cfg_data; +} + +#endif /* !__I386__ */ diff --git a/roms/u-boot/drivers/pci/pci_msc01.c b/roms/u-boot/drivers/pci/pci_msc01.c new file mode 100644 index 00000000..284ffa09 --- /dev/null +++ b/roms/u-boot/drivers/pci/pci_msc01.c @@ -0,0 +1,125 @@ +/* + * Copyright (C) 2013 Imagination Technologies + * Author: Paul Burton <paul.burton@imgtec.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <msc01.h> +#include <pci.h> +#include <pci_msc01.h> +#include <asm/io.h> + +#define PCI_ACCESS_READ 0 +#define PCI_ACCESS_WRITE 1 + +struct msc01_pci_controller { + struct pci_controller hose; + void *base; +}; + +static inline struct msc01_pci_controller * +hose_to_msc01(struct pci_controller *hose) +{ + return container_of(hose, struct msc01_pci_controller, hose); +} + +static int msc01_config_access(struct msc01_pci_controller *msc01, + unsigned char access_type, pci_dev_t bdf, + int where, u32 *data) +{ + const u32 aborts = MSC01_PCI_INTSTAT_MA_MSK | MSC01_PCI_INTSTAT_TA_MSK; + void *intstat = msc01->base + MSC01_PCI_INTSTAT_OFS; + void *cfgdata = msc01->base + MSC01_PCI_CFGDATA_OFS; + unsigned int bus = PCI_BUS(bdf); + unsigned int dev = PCI_DEV(bdf); + unsigned int devfn = PCI_DEV(bdf) << 3 | PCI_FUNC(bdf); + + /* clear abort status */ + __raw_writel(aborts, intstat); + + /* setup address */ + __raw_writel((bus << MSC01_PCI_CFGADDR_BNUM_SHF) | + (dev << MSC01_PCI_CFGADDR_DNUM_SHF) | + (devfn << MSC01_PCI_CFGADDR_FNUM_SHF) | + ((where / 4) << MSC01_PCI_CFGADDR_RNUM_SHF), + msc01->base + MSC01_PCI_CFGADDR_OFS); + + /* perform access */ + if (access_type == PCI_ACCESS_WRITE) + __raw_writel(*data, cfgdata); + else + *data = __raw_readl(cfgdata); + + /* check for aborts */ + if (__raw_readl(intstat) & aborts) { + /* clear abort status */ + __raw_writel(aborts, intstat); + return -1; + } + + return 0; +} + +static int msc01_read_config_dword(struct pci_controller *hose, pci_dev_t dev, + int where, u32 *value) +{ + struct msc01_pci_controller *msc01 = hose_to_msc01(hose); + + *value = 0xffffffff; + return msc01_config_access(msc01, PCI_ACCESS_READ, dev, where, value); +} + +static int msc01_write_config_dword(struct pci_controller *hose, pci_dev_t dev, + int where, u32 value) +{ + struct msc01_pci_controller *gt = hose_to_msc01(hose); + u32 data = value; + + return msc01_config_access(gt, PCI_ACCESS_WRITE, dev, where, &data); +} + +void msc01_pci_init(void *base, unsigned long sys_bus, unsigned long sys_phys, + unsigned long sys_size, unsigned long mem_bus, + unsigned long mem_phys, unsigned long mem_size, + unsigned long io_bus, unsigned long io_phys, + unsigned long io_size) +{ + static struct msc01_pci_controller global_msc01; + struct msc01_pci_controller *msc01; + struct pci_controller *hose; + + msc01 = &global_msc01; + msc01->base = base; + + hose = &msc01->hose; + + hose->first_busno = 0; + hose->last_busno = 0; + + /* System memory space */ + pci_set_region(&hose->regions[0], sys_bus, sys_phys, sys_size, + PCI_REGION_MEM | PCI_REGION_SYS_MEMORY); + + /* PCI memory space */ + pci_set_region(&hose->regions[1], mem_bus, mem_phys, mem_size, + PCI_REGION_MEM); + + /* PCI I/O space */ + pci_set_region(&hose->regions[2], io_bus, io_phys, io_size, + PCI_REGION_IO); + + hose->region_count = 3; + + pci_set_ops(hose, + pci_hose_read_config_byte_via_dword, + pci_hose_read_config_word_via_dword, + msc01_read_config_dword, + pci_hose_write_config_byte_via_dword, + pci_hose_write_config_word_via_dword, + msc01_write_config_dword); + + pci_register_hose(hose); + hose->last_busno = pci_hose_scan(hose); +} diff --git a/roms/u-boot/drivers/pci/pci_sh4.c b/roms/u-boot/drivers/pci/pci_sh4.c new file mode 100644 index 00000000..d7f43c2b --- /dev/null +++ b/roms/u-boot/drivers/pci/pci_sh4.c @@ -0,0 +1,82 @@ +/* + * SH4 PCI Controller (PCIC) for U-Boot. + * (C) Dustin McIntire (dustin@sensoria.com) + * (C) 2007,2008 Nobuhiro Iwamatsu <iwamatsu@nigauri.org> + * (C) 2008 Yusuke Goda <goda.yusuke@renesas.com> + * + * u-boot/arch/sh/cpu/sh4/pci-sh4.c + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> + +#include <asm/processor.h> +#include <asm/io.h> +#include <asm/pci.h> +#include <pci.h> + +int pci_sh4_init(struct pci_controller *hose) +{ + hose->first_busno = 0; + hose->region_count = 0; + hose->last_busno = 0xff; + + /* PCI memory space */ + pci_set_region(hose->regions + 0, + CONFIG_PCI_MEM_BUS, + CONFIG_PCI_MEM_PHYS, + CONFIG_PCI_MEM_SIZE, + PCI_REGION_MEM); + hose->region_count++; + + /* PCI IO space */ + pci_set_region(hose->regions + 1, + CONFIG_PCI_IO_BUS, + CONFIG_PCI_IO_PHYS, + CONFIG_PCI_IO_SIZE, + PCI_REGION_IO); + hose->region_count++; + +#if defined(CONFIG_PCI_SYS_BUS) + /* PCI System Memory space */ + pci_set_region(hose->regions + 2, + CONFIG_PCI_SYS_BUS, + CONFIG_PCI_SYS_PHYS, + CONFIG_PCI_SYS_SIZE, + PCI_REGION_MEM | PCI_REGION_SYS_MEMORY); + hose->region_count++; +#endif + + udelay(1000); + + pci_set_ops(hose, + pci_hose_read_config_byte_via_dword, + pci_hose_read_config_word_via_dword, + pci_sh4_read_config_dword, + pci_hose_write_config_byte_via_dword, + pci_hose_write_config_word_via_dword, + pci_sh4_write_config_dword); + + pci_register_hose(hose); + + udelay(1000); + +#ifdef CONFIG_PCI_SCAN_SHOW + printf("PCI: Bus Dev VenId DevId Class Int\n"); +#endif + hose->last_busno = pci_hose_scan(hose); + return 0; +} + +int pci_skip_dev(struct pci_controller *hose, pci_dev_t dev) +{ + return 0; +} + +#ifdef CONFIG_PCI_SCAN_SHOW +int pci_print_dev(struct pci_controller *hose, pci_dev_t dev) +{ + return 1; +} +#endif /* CONFIG_PCI_SCAN_SHOW */ diff --git a/roms/u-boot/drivers/pci/pci_sh7751.c b/roms/u-boot/drivers/pci/pci_sh7751.c new file mode 100644 index 00000000..f189ed89 --- /dev/null +++ b/roms/u-boot/drivers/pci/pci_sh7751.c @@ -0,0 +1,187 @@ +/* + * SH7751 PCI Controller (PCIC) for U-Boot. + * (C) Dustin McIntire (dustin@sensoria.com) + * (C) 2007,2008 Nobuhiro Iwamatsu <iwamatsu@nigauri.org> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <pci.h> +#include <asm/processor.h> +#include <asm/io.h> +#include <asm/pci.h> + +/* Register addresses and such */ +#define SH7751_BCR1 (vu_long *)0xFF800000 +#define SH7751_BCR2 (vu_short *)0xFF800004 +#define SH7751_WCR1 (vu_long *)0xFF800008 +#define SH7751_WCR2 (vu_long *)0xFF80000C +#define SH7751_WCR3 (vu_long *)0xFF800010 +#define SH7751_MCR (vu_long *)0xFF800014 +#define SH7751_BCR3 (vu_short *)0xFF800050 +#define SH7751_PCICONF0 (vu_long *)0xFE200000 +#define SH7751_PCICONF1 (vu_long *)0xFE200004 +#define SH7751_PCICONF2 (vu_long *)0xFE200008 +#define SH7751_PCICONF3 (vu_long *)0xFE20000C +#define SH7751_PCICONF4 (vu_long *)0xFE200010 +#define SH7751_PCICONF5 (vu_long *)0xFE200014 +#define SH7751_PCICONF6 (vu_long *)0xFE200018 +#define SH7751_PCICR (vu_long *)0xFE200100 +#define SH7751_PCILSR0 (vu_long *)0xFE200104 +#define SH7751_PCILSR1 (vu_long *)0xFE200108 +#define SH7751_PCILAR0 (vu_long *)0xFE20010C +#define SH7751_PCILAR1 (vu_long *)0xFE200110 +#define SH7751_PCIMBR (vu_long *)0xFE2001C4 +#define SH7751_PCIIOBR (vu_long *)0xFE2001C8 +#define SH7751_PCIPINT (vu_long *)0xFE2001CC +#define SH7751_PCIPINTM (vu_long *)0xFE2001D0 +#define SH7751_PCICLKR (vu_long *)0xFE2001D4 +#define SH7751_PCIBCR1 (vu_long *)0xFE2001E0 +#define SH7751_PCIBCR2 (vu_long *)0xFE2001E4 +#define SH7751_PCIWCR1 (vu_long *)0xFE2001E8 +#define SH7751_PCIWCR2 (vu_long *)0xFE2001EC +#define SH7751_PCIWCR3 (vu_long *)0xFE2001F0 +#define SH7751_PCIMCR (vu_long *)0xFE2001F4 +#define SH7751_PCIBCR3 (vu_long *)0xFE2001F8 + +#define BCR1_BREQEN 0x00080000 +#define PCI_SH7751_ID 0x35051054 +#define PCI_SH7751R_ID 0x350E1054 +#define SH7751_PCICONF1_WCC 0x00000080 +#define SH7751_PCICONF1_PER 0x00000040 +#define SH7751_PCICONF1_BUM 0x00000004 +#define SH7751_PCICONF1_MES 0x00000002 +#define SH7751_PCICONF1_CMDS 0x000000C6 +#define SH7751_PCI_HOST_BRIDGE 0x6 +#define SH7751_PCICR_PREFIX 0xa5000000 +#define SH7751_PCICR_PRST 0x00000002 +#define SH7751_PCICR_CFIN 0x00000001 +#define SH7751_PCIPINT_D3 0x00000002 +#define SH7751_PCIPINT_D0 0x00000001 +#define SH7751_PCICLKR_PREFIX 0xa5000000 + +#define SH7751_PCI_MEM_BASE 0xFD000000 +#define SH7751_PCI_MEM_SIZE 0x01000000 +#define SH7751_PCI_IO_BASE 0xFE240000 +#define SH7751_PCI_IO_SIZE 0x00040000 + +#define SH7751_CS3_BASE_ADDR 0x0C000000 +#define SH7751_P2CS3_BASE_ADDR 0xAC000000 + +#define SH7751_PCIPAR (vu_long *)0xFE2001C0 +#define SH7751_PCIPDR (vu_long *)0xFE200220 + +#define p4_in(addr) (*addr) +#define p4_out(data, addr) (*addr) = (data) + +/* Double word */ +int pci_sh4_read_config_dword(struct pci_controller *hose, + pci_dev_t dev, int offset, u32 *value) +{ + u32 par_data = 0x80000000 | dev; + + p4_out(par_data | (offset & 0xfc), SH7751_PCIPAR); + *value = p4_in(SH7751_PCIPDR); + + return 0; +} + +int pci_sh4_write_config_dword(struct pci_controller *hose, + pci_dev_t dev, int offset, u32 value) +{ + u32 par_data = 0x80000000 | dev; + + p4_out(par_data | (offset & 0xfc), SH7751_PCIPAR); + p4_out(value, SH7751_PCIPDR); + + return 0; +} + +int pci_sh7751_init(struct pci_controller *hose) +{ + /* Double-check that we're a 7751 or 7751R chip */ + if (p4_in(SH7751_PCICONF0) != PCI_SH7751_ID + && p4_in(SH7751_PCICONF0) != PCI_SH7751R_ID) { + printf("PCI: Unknown PCI host bridge.\n"); + return 1; + } + printf("PCI: SH7751 PCI host bridge found.\n"); + + /* Double-check some BSC config settings */ + /* (Area 3 non-MPX 32-bit, PCI bus pins) */ + if ((p4_in(SH7751_BCR1) & 0x20008) == 0x20000) { + printf("SH7751_BCR1 value is wrong(0x%08X)\n", + (unsigned int)p4_in(SH7751_BCR1)); + return 2; + } + if ((p4_in(SH7751_BCR2) & 0xC0) != 0xC0) { + printf("SH7751_BCR2 value is wrong(0x%08X)\n", + (unsigned int)p4_in(SH7751_BCR2)); + return 3; + } + if (p4_in(SH7751_BCR2) & 0x01) { + printf("SH7751_BCR2 value is wrong(0x%08X)\n", + (unsigned int)p4_in(SH7751_BCR2)); + return 4; + } + + /* Force BREQEN in BCR1 to allow PCIC access */ + p4_out((p4_in(SH7751_BCR1) | BCR1_BREQEN), SH7751_BCR1); + + /* Toggle PCI reset pin */ + p4_out((SH7751_PCICR_PREFIX | SH7751_PCICR_PRST), SH7751_PCICR); + udelay(32); + p4_out(SH7751_PCICR_PREFIX, SH7751_PCICR); + + /* Set cmd bits: WCC, PER, BUM, MES */ + /* (Addr/Data stepping, Parity enabled, Bus Master, Memory enabled) */ + p4_out(0xfb900047, SH7751_PCICONF1); /* K.Kino */ + + /* Define this host as the host bridge */ + p4_out((SH7751_PCI_HOST_BRIDGE << 24), SH7751_PCICONF2); + + /* Force PCI clock(s) on */ + p4_out(0, SH7751_PCICLKR); + p4_out(0x03, SH7751_PCICLKR); + + /* Clear powerdown IRQs, also mask them (unused) */ + p4_out((SH7751_PCIPINT_D0 | SH7751_PCIPINT_D3), SH7751_PCIPINT); + p4_out(0, SH7751_PCIPINTM); + + p4_out(0xab000001, SH7751_PCICONF4); + + /* Set up target memory mappings (for external DMA access) */ + /* Map both P0 and P2 range to Area 3 RAM for ease of use */ + p4_out((64 - 1) << 20, SH7751_PCILSR0); + p4_out(SH7751_CS3_BASE_ADDR, SH7751_PCILAR0); + p4_out(0, SH7751_PCILSR1); + p4_out(0, SH7751_PCILAR1); + p4_out(SH7751_CS3_BASE_ADDR, SH7751_PCICONF5); + p4_out(0xd0000000, SH7751_PCICONF6); + + /* Map memory window to same address on PCI bus */ + p4_out(SH7751_PCI_MEM_BASE, SH7751_PCIMBR); + + /* Map IO window to same address on PCI bus */ + p4_out(0x2000 & 0xfffc0000, SH7751_PCIIOBR); + + /* set BREQEN */ + p4_out(inl(SH7751_BCR1) | 0x00080000, SH7751_BCR1); + + /* Copy BSC registers into PCI BSC */ + p4_out(inl(SH7751_BCR1), SH7751_PCIBCR1); + p4_out(inw(SH7751_BCR2), SH7751_PCIBCR2); + p4_out(inw(SH7751_BCR3), SH7751_PCIBCR3); + p4_out(inl(SH7751_WCR1), SH7751_PCIWCR1); + p4_out(inl(SH7751_WCR2), SH7751_PCIWCR2); + p4_out(inl(SH7751_WCR3), SH7751_PCIWCR3); + p4_out(inl(SH7751_MCR), SH7751_PCIMCR); + + /* Finally, set central function init complete */ + p4_out((SH7751_PCICR_PREFIX | SH7751_PCICR_CFIN), SH7751_PCICR); + + pci_sh4_init(hose); + + return 0; +} diff --git a/roms/u-boot/drivers/pci/pci_sh7780.c b/roms/u-boot/drivers/pci/pci_sh7780.c new file mode 100644 index 00000000..5c739eda --- /dev/null +++ b/roms/u-boot/drivers/pci/pci_sh7780.c @@ -0,0 +1,92 @@ +/* + * SH7780 PCI Controller (PCIC) for U-Boot. + * (C) Dustin McIntire (dustin@sensoria.com) + * (C) 2007,2008 Nobuhiro Iwamatsu <iwamatsu@nigauri.org> + * (C) 2008 Yusuke Goda <goda.yusuke@renesas.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> + +#include <pci.h> +#include <asm/processor.h> +#include <asm/pci.h> +#include <asm/io.h> + +#define SH7780_VENDOR_ID 0x1912 +#define SH7780_DEVICE_ID 0x0002 +#define SH7780_PCICR_PREFIX 0xA5000000 +#define SH7780_PCICR_PFCS 0x00000800 +#define SH7780_PCICR_FTO 0x00000400 +#define SH7780_PCICR_PFE 0x00000200 +#define SH7780_PCICR_TBS 0x00000100 +#define SH7780_PCICR_ARBM 0x00000040 +#define SH7780_PCICR_IOCS 0x00000004 +#define SH7780_PCICR_PRST 0x00000002 +#define SH7780_PCICR_CFIN 0x00000001 + +#define p4_in(addr) (*(vu_long *)addr) +#define p4_out(data, addr) (*(vu_long *)addr) = (data) +#define p4_inw(addr) (*(vu_short *)addr) +#define p4_outw(data, addr) (*(vu_short *)addr) = (data) + +int pci_sh4_read_config_dword(struct pci_controller *hose, + pci_dev_t dev, int offset, u32 *value) +{ + u32 par_data = 0x80000000 | dev; + + p4_out(par_data | (offset & 0xfc), SH7780_PCIPAR); + *value = p4_in(SH7780_PCIPDR); + + return 0; +} + +int pci_sh4_write_config_dword(struct pci_controller *hose, + pci_dev_t dev, int offset, u32 value) +{ + u32 par_data = 0x80000000 | dev; + + p4_out(par_data | (offset & 0xfc), SH7780_PCIPAR); + p4_out(value, SH7780_PCIPDR); + return 0; +} + +int pci_sh7780_init(struct pci_controller *hose) +{ + p4_out(0x01, SH7780_PCIECR); + + if (p4_inw(SH7780_PCIVID) != SH7780_VENDOR_ID + && p4_inw(SH7780_PCIDID) != SH7780_DEVICE_ID) { + printf("PCI: Unknown PCI host bridge.\n"); + return -1; + } + printf("PCI: SH7780 PCI host bridge found.\n"); + + /* Toggle PCI reset pin */ + p4_out((SH7780_PCICR_PREFIX | SH7780_PCICR_PRST), SH7780_PCICR); + udelay(100000); + p4_out(SH7780_PCICR_PREFIX, SH7780_PCICR); + p4_outw(0x0047, SH7780_PCICMD); + + p4_out(CONFIG_SH7780_PCI_LSR, SH7780_PCILSR0); + p4_out(CONFIG_SH7780_PCI_LAR, SH7780_PCILAR0); + p4_out(0x00000000, SH7780_PCILSR1); + p4_out(0, SH7780_PCILAR1); + p4_out(CONFIG_SH7780_PCI_BAR, SH7780_PCIMBAR0); + p4_out(0x00000000, SH7780_PCIMBAR1); + + p4_out(0xFD000000, SH7780_PCIMBR0); + p4_out(0x00FC0000, SH7780_PCIMBMR0); + + /* if use Operand Cache then enable PCICSCR Soonp bits. */ + p4_out(0x08000000, SH7780_PCICSAR0); + p4_out(0x0000001B, SH7780_PCICSCR0); /* Snoop bit :On */ + + p4_out((SH7780_PCICR_PREFIX | SH7780_PCICR_CFIN | SH7780_PCICR_ARBM + | SH7780_PCICR_FTO | SH7780_PCICR_PFCS | SH7780_PCICR_PFE), + SH7780_PCICR); + + pci_sh4_init(hose); + return 0; +} diff --git a/roms/u-boot/drivers/pci/pcie_imx.c b/roms/u-boot/drivers/pci/pcie_imx.c new file mode 100644 index 00000000..c48737e6 --- /dev/null +++ b/roms/u-boot/drivers/pci/pcie_imx.c @@ -0,0 +1,617 @@ +/* + * Freescale i.MX6 PCI Express Root-Complex driver + * + * Copyright (C) 2013 Marek Vasut <marex@denx.de> + * + * Based on upstream Linux kernel driver: + * pci-imx6.c: Sean Cross <xobs@kosagi.com> + * pcie-designware.c: Jingoo Han <jg1.han@samsung.com> + * + * SPDX-License-Identifier: GPL-2.0 + */ + +#include <common.h> +#include <pci.h> +#include <asm/arch/clock.h> +#include <asm/arch/iomux.h> +#include <asm/arch/crm_regs.h> +#include <asm/gpio.h> +#include <asm/io.h> +#include <linux/sizes.h> +#include <errno.h> + +#define PCI_ACCESS_READ 0 +#define PCI_ACCESS_WRITE 1 + +#define MX6_DBI_ADDR 0x01ffc000 +#define MX6_DBI_SIZE 0x4000 +#define MX6_IO_ADDR 0x01000000 +#define MX6_IO_SIZE 0x100000 +#define MX6_MEM_ADDR 0x01100000 +#define MX6_MEM_SIZE 0xe00000 +#define MX6_ROOT_ADDR 0x01f00000 +#define MX6_ROOT_SIZE 0xfc000 + +/* PCIe Port Logic registers (memory-mapped) */ +#define PL_OFFSET 0x700 +#define PCIE_PHY_DEBUG_R0 (PL_OFFSET + 0x28) +#define PCIE_PHY_DEBUG_R1 (PL_OFFSET + 0x2c) +#define PCIE_PHY_DEBUG_R1_LINK_UP (1 << 4) +#define PCIE_PHY_DEBUG_R1_LINK_IN_TRAINING (1 << 29) + +#define PCIE_PHY_CTRL (PL_OFFSET + 0x114) +#define PCIE_PHY_CTRL_DATA_LOC 0 +#define PCIE_PHY_CTRL_CAP_ADR_LOC 16 +#define PCIE_PHY_CTRL_CAP_DAT_LOC 17 +#define PCIE_PHY_CTRL_WR_LOC 18 +#define PCIE_PHY_CTRL_RD_LOC 19 + +#define PCIE_PHY_STAT (PL_OFFSET + 0x110) +#define PCIE_PHY_STAT_DATA_LOC 0 +#define PCIE_PHY_STAT_ACK_LOC 16 + +/* PHY registers (not memory-mapped) */ +#define PCIE_PHY_RX_ASIC_OUT 0x100D + +#define PHY_RX_OVRD_IN_LO 0x1005 +#define PHY_RX_OVRD_IN_LO_RX_DATA_EN (1 << 5) +#define PHY_RX_OVRD_IN_LO_RX_PLL_EN (1 << 3) + +/* iATU registers */ +#define PCIE_ATU_VIEWPORT 0x900 +#define PCIE_ATU_REGION_INBOUND (0x1 << 31) +#define PCIE_ATU_REGION_OUTBOUND (0x0 << 31) +#define PCIE_ATU_REGION_INDEX1 (0x1 << 0) +#define PCIE_ATU_REGION_INDEX0 (0x0 << 0) +#define PCIE_ATU_CR1 0x904 +#define PCIE_ATU_TYPE_MEM (0x0 << 0) +#define PCIE_ATU_TYPE_IO (0x2 << 0) +#define PCIE_ATU_TYPE_CFG0 (0x4 << 0) +#define PCIE_ATU_TYPE_CFG1 (0x5 << 0) +#define PCIE_ATU_CR2 0x908 +#define PCIE_ATU_ENABLE (0x1 << 31) +#define PCIE_ATU_BAR_MODE_ENABLE (0x1 << 30) +#define PCIE_ATU_LOWER_BASE 0x90C +#define PCIE_ATU_UPPER_BASE 0x910 +#define PCIE_ATU_LIMIT 0x914 +#define PCIE_ATU_LOWER_TARGET 0x918 +#define PCIE_ATU_BUS(x) (((x) & 0xff) << 24) +#define PCIE_ATU_DEV(x) (((x) & 0x1f) << 19) +#define PCIE_ATU_FUNC(x) (((x) & 0x7) << 16) +#define PCIE_ATU_UPPER_TARGET 0x91C + +/* + * PHY access functions + */ +static int pcie_phy_poll_ack(void __iomem *dbi_base, int exp_val) +{ + u32 val; + u32 max_iterations = 10; + u32 wait_counter = 0; + + do { + val = readl(dbi_base + PCIE_PHY_STAT); + val = (val >> PCIE_PHY_STAT_ACK_LOC) & 0x1; + wait_counter++; + + if (val == exp_val) + return 0; + + udelay(1); + } while (wait_counter < max_iterations); + + return -ETIMEDOUT; +} + +static int pcie_phy_wait_ack(void __iomem *dbi_base, int addr) +{ + u32 val; + int ret; + + val = addr << PCIE_PHY_CTRL_DATA_LOC; + writel(val, dbi_base + PCIE_PHY_CTRL); + + val |= (0x1 << PCIE_PHY_CTRL_CAP_ADR_LOC); + writel(val, dbi_base + PCIE_PHY_CTRL); + + ret = pcie_phy_poll_ack(dbi_base, 1); + if (ret) + return ret; + + val = addr << PCIE_PHY_CTRL_DATA_LOC; + writel(val, dbi_base + PCIE_PHY_CTRL); + + ret = pcie_phy_poll_ack(dbi_base, 0); + if (ret) + return ret; + + return 0; +} + +/* Read from the 16-bit PCIe PHY control registers (not memory-mapped) */ +static int pcie_phy_read(void __iomem *dbi_base, int addr , int *data) +{ + u32 val, phy_ctl; + int ret; + + ret = pcie_phy_wait_ack(dbi_base, addr); + if (ret) + return ret; + + /* assert Read signal */ + phy_ctl = 0x1 << PCIE_PHY_CTRL_RD_LOC; + writel(phy_ctl, dbi_base + PCIE_PHY_CTRL); + + ret = pcie_phy_poll_ack(dbi_base, 1); + if (ret) + return ret; + + val = readl(dbi_base + PCIE_PHY_STAT); + *data = val & 0xffff; + + /* deassert Read signal */ + writel(0x00, dbi_base + PCIE_PHY_CTRL); + + ret = pcie_phy_poll_ack(dbi_base, 0); + if (ret) + return ret; + + return 0; +} + +static int pcie_phy_write(void __iomem *dbi_base, int addr, int data) +{ + u32 var; + int ret; + + /* write addr */ + /* cap addr */ + ret = pcie_phy_wait_ack(dbi_base, addr); + if (ret) + return ret; + + var = data << PCIE_PHY_CTRL_DATA_LOC; + writel(var, dbi_base + PCIE_PHY_CTRL); + + /* capture data */ + var |= (0x1 << PCIE_PHY_CTRL_CAP_DAT_LOC); + writel(var, dbi_base + PCIE_PHY_CTRL); + + ret = pcie_phy_poll_ack(dbi_base, 1); + if (ret) + return ret; + + /* deassert cap data */ + var = data << PCIE_PHY_CTRL_DATA_LOC; + writel(var, dbi_base + PCIE_PHY_CTRL); + + /* wait for ack de-assertion */ + ret = pcie_phy_poll_ack(dbi_base, 0); + if (ret) + return ret; + + /* assert wr signal */ + var = 0x1 << PCIE_PHY_CTRL_WR_LOC; + writel(var, dbi_base + PCIE_PHY_CTRL); + + /* wait for ack */ + ret = pcie_phy_poll_ack(dbi_base, 1); + if (ret) + return ret; + + /* deassert wr signal */ + var = data << PCIE_PHY_CTRL_DATA_LOC; + writel(var, dbi_base + PCIE_PHY_CTRL); + + /* wait for ack de-assertion */ + ret = pcie_phy_poll_ack(dbi_base, 0); + if (ret) + return ret; + + writel(0x0, dbi_base + PCIE_PHY_CTRL); + + return 0; +} + +static int imx6_pcie_link_up(void) +{ + u32 rc, ltssm; + int rx_valid, temp; + + /* link is debug bit 36, debug register 1 starts at bit 32 */ + rc = readl(MX6_DBI_ADDR + PCIE_PHY_DEBUG_R1); + if ((rc & PCIE_PHY_DEBUG_R1_LINK_UP) && + !(rc & PCIE_PHY_DEBUG_R1_LINK_IN_TRAINING)) + return -EAGAIN; + + /* + * From L0, initiate MAC entry to gen2 if EP/RC supports gen2. + * Wait 2ms (LTSSM timeout is 24ms, PHY lock is ~5us in gen2). + * If (MAC/LTSSM.state == Recovery.RcvrLock) + * && (PHY/rx_valid==0) then pulse PHY/rx_reset. Transition + * to gen2 is stuck + */ + pcie_phy_read((void *)MX6_DBI_ADDR, PCIE_PHY_RX_ASIC_OUT, &rx_valid); + ltssm = readl(MX6_DBI_ADDR + PCIE_PHY_DEBUG_R0) & 0x3F; + + if (rx_valid & 0x01) + return 0; + + if (ltssm != 0x0d) + return 0; + + printf("transition to gen2 is stuck, reset PHY!\n"); + + pcie_phy_read((void *)MX6_DBI_ADDR, PHY_RX_OVRD_IN_LO, &temp); + temp |= (PHY_RX_OVRD_IN_LO_RX_DATA_EN | PHY_RX_OVRD_IN_LO_RX_PLL_EN); + pcie_phy_write((void *)MX6_DBI_ADDR, PHY_RX_OVRD_IN_LO, temp); + + udelay(3000); + + pcie_phy_read((void *)MX6_DBI_ADDR, PHY_RX_OVRD_IN_LO, &temp); + temp &= ~(PHY_RX_OVRD_IN_LO_RX_DATA_EN | PHY_RX_OVRD_IN_LO_RX_PLL_EN); + pcie_phy_write((void *)MX6_DBI_ADDR, PHY_RX_OVRD_IN_LO, temp); + + return 0; +} + +/* + * iATU region setup + */ +static int imx_pcie_regions_setup(void) +{ + /* + * i.MX6 defines 16MB in the AXI address map for PCIe. + * + * That address space excepted the pcie registers is + * split and defined into different regions by iATU, + * with sizes and offsets as follows: + * + * 0x0100_0000 --- 0x010F_FFFF 1MB IORESOURCE_IO + * 0x0110_0000 --- 0x01EF_FFFF 14MB IORESOURCE_MEM + * 0x01F0_0000 --- 0x01FF_FFFF 1MB Cfg + Registers + */ + + /* CMD reg:I/O space, MEM space, and Bus Master Enable */ + setbits_le32(MX6_DBI_ADDR | PCI_COMMAND, + PCI_COMMAND_IO | PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER); + + /* Set the CLASS_REV of RC CFG header to PCI_CLASS_BRIDGE_PCI */ + setbits_le32(MX6_DBI_ADDR + PCI_CLASS_REVISION, + PCI_CLASS_BRIDGE_PCI << 16); + + /* Region #0 is used for Outbound CFG space access. */ + writel(0, MX6_DBI_ADDR + PCIE_ATU_VIEWPORT); + + writel(MX6_ROOT_ADDR, MX6_DBI_ADDR + PCIE_ATU_LOWER_BASE); + writel(0, MX6_DBI_ADDR + PCIE_ATU_UPPER_BASE); + writel(MX6_ROOT_ADDR + MX6_ROOT_SIZE, MX6_DBI_ADDR + PCIE_ATU_LIMIT); + + writel(0, MX6_DBI_ADDR + PCIE_ATU_LOWER_TARGET); + writel(0, MX6_DBI_ADDR + PCIE_ATU_UPPER_TARGET); + writel(PCIE_ATU_TYPE_CFG0, MX6_DBI_ADDR + PCIE_ATU_CR1); + writel(PCIE_ATU_ENABLE, MX6_DBI_ADDR + PCIE_ATU_CR2); + + return 0; +} + +/* + * PCI Express accessors + */ +static uint32_t get_bus_address(pci_dev_t d, int where) +{ + uint32_t va_address; + + /* Reconfigure Region #0 */ + writel(0, MX6_DBI_ADDR + PCIE_ATU_VIEWPORT); + + if (PCI_BUS(d) < 2) + writel(PCIE_ATU_TYPE_CFG0, MX6_DBI_ADDR + PCIE_ATU_CR1); + else + writel(PCIE_ATU_TYPE_CFG1, MX6_DBI_ADDR + PCIE_ATU_CR1); + + if (PCI_BUS(d) == 0) { + va_address = MX6_DBI_ADDR; + } else { + writel(d << 8, MX6_DBI_ADDR + PCIE_ATU_LOWER_TARGET); + va_address = MX6_IO_ADDR + SZ_16M - SZ_1M; + } + + va_address += (where & ~0x3); + + return va_address; +} + +static int imx_pcie_addr_valid(pci_dev_t d) +{ + if ((PCI_BUS(d) == 0) && (PCI_DEV(d) > 1)) + return -EINVAL; + if ((PCI_BUS(d) == 1) && (PCI_DEV(d) > 0)) + return -EINVAL; + return 0; +} + +/* + * Replace the original ARM DABT handler with a simple jump-back one. + * + * The problem here is that if we have a PCIe bridge attached to this PCIe + * controller, but no PCIe device is connected to the bridges' downstream + * port, the attempt to read/write from/to the config space will produce + * a DABT. This is a behavior of the controller and can not be disabled + * unfortuatelly. + * + * To work around the problem, we backup the current DABT handler address + * and replace it with our own DABT handler, which only bounces right back + * into the code. + */ +static void imx_pcie_fix_dabt_handler(bool set) +{ + extern uint32_t *_data_abort; + uint32_t *data_abort_addr = (uint32_t *)&_data_abort; + + static const uint32_t data_abort_bounce_handler = 0xe25ef004; + uint32_t data_abort_bounce_addr = (uint32_t)&data_abort_bounce_handler; + + static uint32_t data_abort_backup; + + if (set) { + data_abort_backup = *data_abort_addr; + *data_abort_addr = data_abort_bounce_addr; + } else { + *data_abort_addr = data_abort_backup; + } +} + +static int imx_pcie_read_config(struct pci_controller *hose, pci_dev_t d, + int where, u32 *val) +{ + uint32_t va_address; + int ret; + + ret = imx_pcie_addr_valid(d); + if (ret) { + *val = 0xffffffff; + return ret; + } + + va_address = get_bus_address(d, where); + + /* + * Read the PCIe config space. We must replace the DABT handler + * here in case we got data abort from the PCIe controller, see + * imx_pcie_fix_dabt_handler() description. Note that writing the + * "val" with valid value is also imperative here as in case we + * did got DABT, the val would contain random value. + */ + imx_pcie_fix_dabt_handler(true); + writel(0xffffffff, val); + *val = readl(va_address); + imx_pcie_fix_dabt_handler(false); + + return 0; +} + +static int imx_pcie_write_config(struct pci_controller *hose, pci_dev_t d, + int where, u32 val) +{ + uint32_t va_address = 0; + int ret; + + ret = imx_pcie_addr_valid(d); + if (ret) + return ret; + + va_address = get_bus_address(d, where); + + /* + * Write the PCIe config space. We must replace the DABT handler + * here in case we got data abort from the PCIe controller, see + * imx_pcie_fix_dabt_handler() description. + */ + imx_pcie_fix_dabt_handler(true); + writel(val, va_address); + imx_pcie_fix_dabt_handler(false); + + return 0; +} + +/* + * Initial bus setup + */ +static int imx6_pcie_assert_core_reset(void) +{ + struct iomuxc *iomuxc_regs = (struct iomuxc *)IOMUXC_BASE_ADDR; + + setbits_le32(&iomuxc_regs->gpr[1], IOMUXC_GPR1_TEST_POWERDOWN); + clrbits_le32(&iomuxc_regs->gpr[1], IOMUXC_GPR1_REF_SSP_EN); + + return 0; +} + +static int imx6_pcie_init_phy(void) +{ + struct iomuxc *iomuxc_regs = (struct iomuxc *)IOMUXC_BASE_ADDR; + + clrbits_le32(&iomuxc_regs->gpr[12], IOMUXC_GPR12_APPS_LTSSM_ENABLE); + + clrsetbits_le32(&iomuxc_regs->gpr[12], + IOMUXC_GPR12_DEVICE_TYPE_MASK, + IOMUXC_GPR12_DEVICE_TYPE_RC); + clrsetbits_le32(&iomuxc_regs->gpr[12], + IOMUXC_GPR12_LOS_LEVEL_MASK, + IOMUXC_GPR12_LOS_LEVEL_9); + + writel((0x0 << IOMUXC_GPR8_PCS_TX_DEEMPH_GEN1_OFFSET) | + (0x0 << IOMUXC_GPR8_PCS_TX_DEEMPH_GEN2_3P5DB_OFFSET) | + (20 << IOMUXC_GPR8_PCS_TX_DEEMPH_GEN2_6DB_OFFSET) | + (127 << IOMUXC_GPR8_PCS_TX_SWING_FULL_OFFSET) | + (127 << IOMUXC_GPR8_PCS_TX_SWING_LOW_OFFSET), + &iomuxc_regs->gpr[8]); + + return 0; +} + +__weak int imx6_pcie_toggle_power(void) +{ +#ifdef CONFIG_PCIE_IMX_POWER_GPIO + gpio_direction_output(CONFIG_PCIE_IMX_POWER_GPIO, 0); + mdelay(20); + gpio_set_value(CONFIG_PCIE_IMX_POWER_GPIO, 1); + mdelay(20); +#endif + return 0; +} + +__weak int imx6_pcie_toggle_reset(void) +{ + /* + * See 'PCI EXPRESS BASE SPECIFICATION, REV 3.0, SECTION 6.6.1' + * for detailed understanding of the PCIe CR reset logic. + * + * The PCIe #PERST reset line _MUST_ be connected, otherwise your + * design does not conform to the specification. You must wait at + * least 20 mS after de-asserting the #PERST so the EP device can + * do self-initialisation. + * + * In case your #PERST pin is connected to a plain GPIO pin of the + * CPU, you can define CONFIG_PCIE_IMX_PERST_GPIO in your board's + * configuration file and the condition below will handle the rest + * of the reset toggling. + * + * In case your #PERST toggling logic is more complex, for example + * connected via CPLD or somesuch, you can override this function + * in your board file and implement reset logic as needed. You must + * not forget to wait at least 20 mS after de-asserting #PERST in + * this case either though. + * + * In case your #PERST line of the PCIe EP device is not connected + * at all, your design is broken and you should fix your design, + * otherwise you will observe problems like for example the link + * not coming up after rebooting the system back from running Linux + * that uses the PCIe as well OR the PCIe link might not come up in + * Linux at all in the first place since it's in some non-reset + * state due to being previously used in U-Boot. + */ +#ifdef CONFIG_PCIE_IMX_PERST_GPIO + gpio_direction_output(CONFIG_PCIE_IMX_PERST_GPIO, 0); + mdelay(20); + gpio_set_value(CONFIG_PCIE_IMX_PERST_GPIO, 1); + mdelay(20); +#else + puts("WARNING: Make sure the PCIe #PERST line is connected!\n"); +#endif + return 0; +} + +static int imx6_pcie_deassert_core_reset(void) +{ + struct iomuxc *iomuxc_regs = (struct iomuxc *)IOMUXC_BASE_ADDR; + + imx6_pcie_toggle_power(); + + /* Enable PCIe */ + clrbits_le32(&iomuxc_regs->gpr[1], IOMUXC_GPR1_TEST_POWERDOWN); + setbits_le32(&iomuxc_regs->gpr[1], IOMUXC_GPR1_REF_SSP_EN); + + enable_pcie_clock(); + + /* + * Wait for the clock to settle a bit, when the clock are sourced + * from the CPU, we need about 30mS to settle. + */ + mdelay(50); + + imx6_pcie_toggle_reset(); + + return 0; +} + +static int imx_pcie_link_up(void) +{ + struct iomuxc *iomuxc_regs = (struct iomuxc *)IOMUXC_BASE_ADDR; + uint32_t tmp; + int count = 0; + + imx6_pcie_assert_core_reset(); + imx6_pcie_init_phy(); + imx6_pcie_deassert_core_reset(); + + imx_pcie_regions_setup(); + + /* + * FIXME: Force the PCIe RC to Gen1 operation + * The RC must be forced into Gen1 mode before bringing the link + * up, otherwise no downstream devices are detected. After the + * link is up, a managed Gen1->Gen2 transition can be initiated. + */ + tmp = readl(MX6_DBI_ADDR + 0x7c); + tmp &= ~0xf; + tmp |= 0x1; + writel(tmp, MX6_DBI_ADDR + 0x7c); + + /* LTSSM enable, starting link. */ + setbits_le32(&iomuxc_regs->gpr[12], IOMUXC_GPR12_APPS_LTSSM_ENABLE); + + while (!imx6_pcie_link_up()) { + udelay(10); + count++; + if (count >= 2000) { + debug("phy link never came up\n"); + debug("DEBUG_R0: 0x%08x, DEBUG_R1: 0x%08x\n", + readl(MX6_DBI_ADDR + PCIE_PHY_DEBUG_R0), + readl(MX6_DBI_ADDR + PCIE_PHY_DEBUG_R1)); + return -EINVAL; + } + } + + return 0; +} + +void imx_pcie_init(void) +{ + /* Static instance of the controller. */ + static struct pci_controller pcc; + struct pci_controller *hose = &pcc; + int ret; + + memset(&pcc, 0, sizeof(pcc)); + + /* PCI I/O space */ + pci_set_region(&hose->regions[0], + MX6_IO_ADDR, MX6_IO_ADDR, + MX6_IO_SIZE, PCI_REGION_IO); + + /* PCI memory space */ + pci_set_region(&hose->regions[1], + MX6_MEM_ADDR, MX6_MEM_ADDR, + MX6_MEM_SIZE, PCI_REGION_MEM); + + /* System memory space */ + pci_set_region(&hose->regions[2], + MMDC0_ARB_BASE_ADDR, MMDC0_ARB_BASE_ADDR, + 0xefffffff, PCI_REGION_MEM | PCI_REGION_SYS_MEMORY); + + hose->region_count = 3; + + pci_set_ops(hose, + pci_hose_read_config_byte_via_dword, + pci_hose_read_config_word_via_dword, + imx_pcie_read_config, + pci_hose_write_config_byte_via_dword, + pci_hose_write_config_word_via_dword, + imx_pcie_write_config); + + /* Start the controller. */ + ret = imx_pcie_link_up(); + + if (!ret) { + pci_register_hose(hose); + hose->last_busno = pci_hose_scan(hose); + } +} + +/* Probe function. */ +void pci_init_board(void) +{ + imx_pcie_init(); +} diff --git a/roms/u-boot/drivers/pci/tsi108_pci.c b/roms/u-boot/drivers/pci/tsi108_pci.c new file mode 100644 index 00000000..d48e1e6f --- /dev/null +++ b/roms/u-boot/drivers/pci/tsi108_pci.c @@ -0,0 +1,167 @@ +/* + * (C) Copyright 2004 Tundra Semiconductor Corp. + * Alex Bounine <alexandreb@tundra.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +/* + * PCI initialisation for the Tsi108 EMU board. + */ + +#include <config.h> + +#include <common.h> +#include <pci.h> +#include <asm/io.h> +#include <tsi108.h> +#if defined(CONFIG_OF_LIBFDT) +#include <libfdt.h> +#include <fdt_support.h> +#endif + +struct pci_controller local_hose; + +void tsi108_clear_pci_error (void) +{ + u32 err_stat, err_addr, pci_stat; + + /* + * Quietly clear errors signalled as result of PCI/X configuration read + * requests. + */ + /* Read PB Error Log Registers */ + err_stat = *(volatile u32 *)(CONFIG_SYS_TSI108_CSR_BASE + + TSI108_PB_REG_OFFSET + PB_ERRCS); + err_addr = *(volatile u32 *)(CONFIG_SYS_TSI108_CSR_BASE + + TSI108_PB_REG_OFFSET + PB_AERR); + if (err_stat & PB_ERRCS_ES) { + /* Clear PCI/X bus errors if applicable */ + if ((err_addr & 0xFF000000) == CONFIG_SYS_PCI_CFG_BASE) { + /* Clear error flag */ + *(u32 *) (CONFIG_SYS_TSI108_CSR_BASE + + TSI108_PB_REG_OFFSET + PB_ERRCS) = + PB_ERRCS_ES; + + /* Clear read error reported in PB_ISR */ + *(u32 *) (CONFIG_SYS_TSI108_CSR_BASE + + TSI108_PB_REG_OFFSET + PB_ISR) = + PB_ISR_PBS_RD_ERR; + + /* Clear errors reported by PCI CSR (Normally Master Abort) */ + pci_stat = *(volatile u32 *)(CONFIG_SYS_TSI108_CSR_BASE + + TSI108_PCI_REG_OFFSET + + PCI_CSR); + *(volatile u32 *)(CONFIG_SYS_TSI108_CSR_BASE + + TSI108_PCI_REG_OFFSET + PCI_CSR) = + pci_stat; + + *(volatile u32 *)(CONFIG_SYS_TSI108_CSR_BASE + + TSI108_PCI_REG_OFFSET + + PCI_IRP_STAT) = PCI_IRP_STAT_P_CSR; + } + } + + return; +} + +unsigned int __get_pci_config_dword (u32 addr) +{ + unsigned int retval; + + __asm__ __volatile__ (" lwbrx %0,0,%1\n" + "1: eieio\n" + "2:\n" + ".section .fixup,\"ax\"\n" + "3: li %0,-1\n" + " b 2b\n" + ".section __ex_table,\"a\"\n" + " .align 2\n" + " .long 1b,3b\n" + ".section .text.__get_pci_config_dword" + : "=r"(retval) : "r"(addr)); + + return (retval); +} + +static int tsi108_read_config_dword (struct pci_controller *hose, + pci_dev_t dev, int offset, u32 * value) +{ + dev &= (CONFIG_SYS_PCI_CFG_SIZE - 1); + dev |= (CONFIG_SYS_PCI_CFG_BASE | (offset & 0xfc)); + *value = __get_pci_config_dword(dev); + if (0xFFFFFFFF == *value) + tsi108_clear_pci_error (); + return 0; +} + +static int tsi108_write_config_dword (struct pci_controller *hose, + pci_dev_t dev, int offset, u32 value) +{ + dev &= (CONFIG_SYS_PCI_CFG_SIZE - 1); + dev |= (CONFIG_SYS_PCI_CFG_BASE | (offset & 0xfc)); + + out_le32 ((volatile unsigned *)dev, value); + + return 0; +} + +void pci_init_board (void) +{ + struct pci_controller *hose = (struct pci_controller *)&local_hose; + + hose->first_busno = 0; + hose->last_busno = 0xff; + + pci_set_region (hose->regions + 0, + CONFIG_SYS_PCI_MEMORY_BUS, + CONFIG_SYS_PCI_MEMORY_PHYS, + CONFIG_SYS_PCI_MEMORY_SIZE, PCI_REGION_MEM | PCI_REGION_SYS_MEMORY); + + /* PCI memory space */ + pci_set_region (hose->regions + 1, + CONFIG_SYS_PCI_MEM_BUS, + CONFIG_SYS_PCI_MEM_PHYS, CONFIG_SYS_PCI_MEM_SIZE, PCI_REGION_MEM); + + /* PCI I/O space */ + pci_set_region (hose->regions + 2, + CONFIG_SYS_PCI_IO_BUS, + CONFIG_SYS_PCI_IO_PHYS, CONFIG_SYS_PCI_IO_SIZE, PCI_REGION_IO); + + hose->region_count = 3; + + pci_set_ops (hose, + pci_hose_read_config_byte_via_dword, + pci_hose_read_config_word_via_dword, + tsi108_read_config_dword, + pci_hose_write_config_byte_via_dword, + pci_hose_write_config_word_via_dword, + tsi108_write_config_dword); + + pci_register_hose (hose); + + hose->last_busno = pci_hose_scan (hose); + + debug ("Done PCI initialization\n"); + return; +} + +#if defined(CONFIG_OF_LIBFDT) +void ft_pci_setup(void *blob, bd_t *bd) +{ + int nodeoffset; + int tmp[2]; + const char *path; + + nodeoffset = fdt_path_offset(blob, "/aliases"); + if (nodeoffset >= 0) { + path = fdt_getprop(blob, nodeoffset, "pci", NULL); + if (path) { + tmp[0] = cpu_to_be32(local_hose.first_busno); + tmp[1] = cpu_to_be32(local_hose.last_busno); + do_fixup_by_path(blob, path, "bus-range", + &tmp, sizeof(tmp), 1); + } + } +} +#endif /* CONFIG_OF_LIBFDT */ diff --git a/roms/u-boot/drivers/pci/w83c553f.c b/roms/u-boot/drivers/pci/w83c553f.c new file mode 100644 index 00000000..1192f0f6 --- /dev/null +++ b/roms/u-boot/drivers/pci/w83c553f.c @@ -0,0 +1,206 @@ +/* + * (C) Copyright 2001 Sysgo Real-Time Solutions, GmbH <www.elinos.com> + * Andreas Heppel <aheppel@sysgo.de> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +/* + * Initialisation of the PCI-to-ISA bridge and disabling the BIOS + * write protection (for flash) in function 0 of the chip. + * Enabling function 1 (IDE controller of the chip. + */ + +#include <common.h> +#include <config.h> + +#include <asm/io.h> +#include <pci.h> + +#include <w83c553f.h> + +#define out8(addr,val) do { \ + out_8((u8*) (addr),(val)); udelay(1); \ + } while (0) +#define out16(addr,val) do { \ + out_be16((u16*) (addr),(val)); udelay(1); \ + } while (0) + +extern uint ide_bus_offset[CONFIG_SYS_IDE_MAXBUS]; + +void initialise_pic(void); +void initialise_dma(void); + +void initialise_w83c553f(void) +{ + pci_dev_t devbusfn; + unsigned char reg8; + unsigned short reg16; + unsigned int reg32; + + devbusfn = pci_find_device(W83C553F_VID, W83C553F_DID, 0); + if (devbusfn == -1) + { + printf("Error: Cannot find W83C553F controller on any PCI bus."); + return; + } + + pci_read_config_word(devbusfn, PCI_COMMAND, ®16); + reg16 |= PCI_COMMAND_MASTER | PCI_COMMAND_IO | PCI_COMMAND_MEMORY; + pci_write_config_word(devbusfn, PCI_COMMAND, reg16); + + pci_read_config_byte(devbusfn, WINBOND_IPADCR, ®8); + /* 16 MB ISA memory space */ + reg8 |= (IPADCR_IPATOM4 | IPADCR_IPATOM5 | IPADCR_IPATOM6 | IPADCR_IPATOM7); + reg8 &= ~IPADCR_MBE512; + pci_write_config_byte(devbusfn, WINBOND_IPADCR, reg8); + + pci_read_config_byte(devbusfn, WINBOND_CSCR, ®8); + /* switch off BIOS write protection */ + reg8 |= CSCR_UBIOSCSE; + reg8 &= ~CSCR_BIOSWP; + pci_write_config_byte(devbusfn, WINBOND_CSCR, reg8); + + /* + * Interrupt routing: + * - IDE -> IRQ 9/0 + * - INTA -> IRQ 10 + * - INTB -> IRQ 11 + * - INTC -> IRQ 14 + * - INTD -> IRQ 15 + */ + pci_write_config_byte(devbusfn, WINBOND_IDEIRCR, 0x90); + pci_write_config_word(devbusfn, WINBOND_PCIIRCR, 0xABEF); + + /* + * Read IDE bus offsets from function 1 device. + * We must unmask the LSB indicating that ist is an IO address. + */ + devbusfn |= PCI_BDF(0,0,1); + + /* + * Switch off legacy IRQ for IDE and IDE port 1. + */ + pci_write_config_byte(devbusfn, 0x09, 0x8F); + + pci_read_config_dword(devbusfn, WINDOND_IDECSR, ®32); + reg32 &= ~(IDECSR_LEGIRQ | IDECSR_P1EN | IDECSR_P1F16); + pci_write_config_dword(devbusfn, WINDOND_IDECSR, reg32); + + pci_read_config_dword(devbusfn, PCI_BASE_ADDRESS_0, &ide_bus_offset[0]); + ide_bus_offset[0] &= ~1; +#if CONFIG_SYS_IDE_MAXBUS > 1 + pci_read_config_dword(devbusfn, PCI_BASE_ADDRESS_2, &ide_bus_offset[1]); + ide_bus_offset[1] &= ~1; +#endif + + /* + * Enable function 1, IDE -> busmastering and IO space access + */ + pci_read_config_word(devbusfn, PCI_COMMAND, ®16); + reg16 |= PCI_COMMAND_MASTER | PCI_COMMAND_IO; + pci_write_config_word(devbusfn, PCI_COMMAND, reg16); + + /* + * Initialise ISA interrupt controller + */ + initialise_pic(); + + /* + * Initialise DMA controller + */ + initialise_dma(); +} + +void initialise_pic(void) +{ + out8(W83C553F_PIC1_ICW1, 0x11); + out8(W83C553F_PIC1_ICW2, 0x08); + out8(W83C553F_PIC1_ICW3, 0x04); + out8(W83C553F_PIC1_ICW4, 0x01); + out8(W83C553F_PIC1_OCW1, 0xfb); + out8(W83C553F_PIC1_ELC, 0x20); + + out8(W83C553F_PIC2_ICW1, 0x11); + out8(W83C553F_PIC2_ICW2, 0x08); + out8(W83C553F_PIC2_ICW3, 0x02); + out8(W83C553F_PIC2_ICW4, 0x01); + out8(W83C553F_PIC2_OCW1, 0xff); + out8(W83C553F_PIC2_ELC, 0xce); + + out8(W83C553F_TMR1_CMOD, 0x74); + + out8(W83C553F_PIC2_OCW1, 0x20); + out8(W83C553F_PIC1_OCW1, 0x20); + + out8(W83C553F_PIC2_OCW1, 0x2b); + out8(W83C553F_PIC1_OCW1, 0x2b); +} + +void initialise_dma(void) +{ + unsigned int channel; + unsigned int rvalue1, rvalue2; + + /* perform a H/W reset of the devices */ + + out8(W83C553F_DMA1 + W83C553F_DMA1_MC, 0x00); + out16(W83C553F_DMA2 + W83C553F_DMA2_MC, 0x0000); + + /* initialise all channels to a sane state */ + + for (channel = 0; channel < 4; channel++) { + /* + * dependent upon the channel, setup the specifics: + * + * demand + * address-increment + * autoinitialize-disable + * verify-transfer + */ + + switch (channel) { + case 0: + rvalue1 = (W83C553F_MODE_TM_DEMAND|W83C553F_MODE_CH0SEL|W83C553F_MODE_TT_VERIFY); + rvalue2 = (W83C553F_MODE_TM_CASCADE|W83C553F_MODE_CH0SEL); + break; + case 1: + rvalue1 = (W83C553F_MODE_TM_DEMAND|W83C553F_MODE_CH1SEL|W83C553F_MODE_TT_VERIFY); + rvalue2 = (W83C553F_MODE_TM_DEMAND|W83C553F_MODE_CH1SEL|W83C553F_MODE_TT_VERIFY); + break; + case 2: + rvalue1 = (W83C553F_MODE_TM_DEMAND|W83C553F_MODE_CH2SEL|W83C553F_MODE_TT_VERIFY); + rvalue2 = (W83C553F_MODE_TM_DEMAND|W83C553F_MODE_CH2SEL|W83C553F_MODE_TT_VERIFY); + break; + case 3: + rvalue1 = (W83C553F_MODE_TM_DEMAND|W83C553F_MODE_CH3SEL|W83C553F_MODE_TT_VERIFY); + rvalue2 = (W83C553F_MODE_TM_DEMAND|W83C553F_MODE_CH3SEL|W83C553F_MODE_TT_VERIFY); + break; + default: + rvalue1 = 0x00; + rvalue2 = 0x00; + break; + } + + /* write to write mode registers */ + + out8(W83C553F_DMA1 + W83C553F_DMA1_WM, rvalue1 & 0xFF); + out16(W83C553F_DMA2 + W83C553F_DMA2_WM, rvalue2 & 0x00FF); + } + + /* enable all channels */ + + out8(W83C553F_DMA1 + W83C553F_DMA1_CM, 0x00); + out16(W83C553F_DMA2 + W83C553F_DMA2_CM, 0x0000); + /* + * initialize the global DMA configuration + * + * DACK# active low + * DREQ active high + * fixed priority + * channel group enable + */ + + out8(W83C553F_DMA1 + W83C553F_DMA1_CS, 0x00); + out16(W83C553F_DMA2 + W83C553F_DMA2_CS, 0x0000); +} |