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Diffstat (limited to 'package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/sbpci.c')
-rw-r--r--package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/sbpci.c557
1 files changed, 0 insertions, 557 deletions
diff --git a/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/sbpci.c b/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/sbpci.c
deleted file mode 100644
index 538dea57ba..0000000000
--- a/package/linux/kernel-source/arch/mips/brcm-boards/bcm947xx/sbpci.c
+++ /dev/null
@@ -1,557 +0,0 @@
-/*
- * Low-Level PCI and SB support for BCM47xx
- *
- * Copyright 2004, Broadcom Corporation
- * All Rights Reserved.
- *
- * THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
- * KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
- * SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
- * FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
- *
- * $Id$
- */
-
-#include <typedefs.h>
-#include <pcicfg.h>
-#include <bcmdevs.h>
-#include <sbconfig.h>
-#include <sbpci.h>
-#include <osl.h>
-#include <bcmendian.h>
-#include <bcmutils.h>
-#include <sbutils.h>
-#include <bcmnvram.h>
-#include <hndmips.h>
-
-/* Can free sbpci_init() memory after boot */
-#ifndef linux
-#define __init
-#endif
-
-/* Emulated configuration space */
-static pci_config_regs sb_config_regs[SB_MAXCORES];
-
-/* Banned cores */
-static uint16 pci_ban[32] = { 0 };
-static uint pci_banned = 0;
-
-/* CardBus mode */
-static bool cardbus = FALSE;
-
-/* Disable PCI host core */
-static bool pci_disabled = FALSE;
-
-/*
- * Functions for accessing external PCI configuration space
- */
-
-/* Assume one-hot slot wiring */
-#define PCI_SLOT_MAX 16
-
-static uint32
-config_cmd(void *sbh, uint bus, uint dev, uint func, uint off)
-{
- uint coreidx;
- sbpciregs_t *regs;
- uint32 addr = 0;
-
- /* CardBusMode supports only one device */
- if (cardbus && dev > 1)
- return 0;
-
- coreidx = sb_coreidx(sbh);
- regs = (sbpciregs_t *) sb_setcore(sbh, SB_PCI, 0);
-
- /* Type 0 transaction */
- if (bus == 1) {
- /* Skip unwired slots */
- if (dev < PCI_SLOT_MAX) {
- /* Slide the PCI window to the appropriate slot */
- W_REG(&regs->sbtopci1, SBTOPCI_CFG0 | ((1 << (dev + 16)) & SBTOPCI1_MASK));
- addr = SB_PCI_CFG | ((1 << (dev + 16)) & ~SBTOPCI1_MASK) |
- (func << 8) | (off & ~3);
- }
- }
-
- /* Type 1 transaction */
- else {
- W_REG(&regs->sbtopci1, SBTOPCI_CFG1);
- addr = SB_PCI_CFG | (bus << 16) | (dev << 11) | (func << 8) | (off & ~3);
- }
-
- sb_setcoreidx(sbh, coreidx);
-
- return addr;
-}
-
-static int
-extpci_read_config(void *sbh, uint bus, uint dev, uint func, uint off, void *buf, int len)
-{
- uint32 addr, *reg = NULL, val;
- int ret = 0;
-
- if (pci_disabled ||
- !(addr = config_cmd(sbh, bus, dev, func, off)) ||
- !(reg = (uint32 *) REG_MAP(addr, len)) ||
- BUSPROBE(val, reg))
- val = 0xffffffff;
-
- val >>= 8 * (off & 3);
- if (len == 4)
- *((uint32 *) buf) = val;
- else if (len == 2)
- *((uint16 *) buf) = (uint16) val;
- else if (len == 1)
- *((uint8 *) buf) = (uint8) val;
- else
- ret = -1;
-
- if (reg)
- REG_UNMAP(reg);
-
- return ret;
-}
-
-static int
-extpci_write_config(void *sbh, uint bus, uint dev, uint func, uint off, void *buf, int len)
-{
- uint32 addr, *reg = NULL, val;
- int ret = 0;
-
- if (pci_disabled ||
- !(addr = config_cmd(sbh, bus, dev, func, off)) ||
- !(reg = (uint32 *) REG_MAP(addr, len)) ||
- BUSPROBE(val, reg))
- goto done;
-
- if (len == 4)
- val = *((uint32 *) buf);
- else if (len == 2) {
- val &= ~(0xffff << (8 * (off & 3)));
- val |= *((uint16 *) buf) << (8 * (off & 3));
- } else if (len == 1) {
- val &= ~(0xff << (8 * (off & 3)));
- val |= *((uint8 *) buf) << (8 * (off & 3));
- } else
- ret = -1;
-
- W_REG(reg, val);
-
- done:
- if (reg)
- REG_UNMAP(reg);
-
- return ret;
-}
-
-/*
- * Functions for accessing translated SB configuration space
- */
-
-static int
-sb_read_config(void *sbh, uint bus, uint dev, uint func, uint off, void *buf, int len)
-{
- pci_config_regs *cfg;
-
- if (dev >= SB_MAXCORES || (off + len) > sizeof(pci_config_regs))
- return -1;
- cfg = &sb_config_regs[dev];
-
- ASSERT(ISALIGNED(off, len));
- ASSERT(ISALIGNED(buf, len));
-
- if (len == 4)
- *((uint32 *) buf) = ltoh32(*((uint32 *)((ulong) cfg + off)));
- else if (len == 2)
- *((uint16 *) buf) = ltoh16(*((uint16 *)((ulong) cfg + off)));
- else if (len == 1)
- *((uint8 *) buf) = *((uint8 *)((ulong) cfg + off));
- else
- return -1;
-
- return 0;
-}
-
-static int
-sb_write_config(void *sbh, uint bus, uint dev, uint func, uint off, void *buf, int len)
-{
- uint coreidx, n;
- void *regs;
- sbconfig_t *sb;
- pci_config_regs *cfg;
-
- if (dev >= SB_MAXCORES || (off + len) > sizeof(pci_config_regs))
- return -1;
- cfg = &sb_config_regs[dev];
-
- ASSERT(ISALIGNED(off, len));
- ASSERT(ISALIGNED(buf, len));
-
- /* Emulate BAR sizing */
- if (off >= OFFSETOF(pci_config_regs, base[0]) && off <= OFFSETOF(pci_config_regs, base[3]) &&
- len == 4 && *((uint32 *) buf) == ~0) {
- coreidx = sb_coreidx(sbh);
- if ((regs = sb_setcoreidx(sbh, dev))) {
- sb = (sbconfig_t *)((ulong) regs + SBCONFIGOFF);
- /* Highest numbered address match register */
- n = (R_REG(&sb->sbidlow) & SBIDL_AR_MASK) >> SBIDL_AR_SHIFT;
- if (off == OFFSETOF(pci_config_regs, base[0]))
- cfg->base[0] = ~(sb_size(R_REG(&sb->sbadmatch0)) - 1);
- else if (off == OFFSETOF(pci_config_regs, base[1]) && n >= 1)
- cfg->base[1] = ~(sb_size(R_REG(&sb->sbadmatch1)) - 1);
- else if (off == OFFSETOF(pci_config_regs, base[2]) && n >= 2)
- cfg->base[2] = ~(sb_size(R_REG(&sb->sbadmatch2)) - 1);
- else if (off == OFFSETOF(pci_config_regs, base[3]) && n >= 3)
- cfg->base[3] = ~(sb_size(R_REG(&sb->sbadmatch3)) - 1);
- }
- sb_setcoreidx(sbh, coreidx);
- return 0;
- }
-
- if (len == 4)
- *((uint32 *)((ulong) cfg + off)) = htol32(*((uint32 *) buf));
- else if (len == 2)
- *((uint16 *)((ulong) cfg + off)) = htol16(*((uint16 *) buf));
- else if (len == 1)
- *((uint8 *)((ulong) cfg + off)) = *((uint8 *) buf);
- else
- return -1;
-
- return 0;
-}
-
-int
-sbpci_read_config(void *sbh, uint bus, uint dev, uint func, uint off, void *buf, int len)
-{
- if (bus == 0)
- return sb_read_config(sbh, bus, dev, func, off, buf, len);
- else
- return extpci_read_config(sbh, bus, dev, func, off, buf, len);
-}
-
-int
-sbpci_write_config(void *sbh, uint bus, uint dev, uint func, uint off, void *buf, int len)
-{
- if (bus == 0)
- return sb_write_config(sbh, bus, dev, func, off, buf, len);
- else
- return extpci_write_config(sbh, bus, dev, func, off, buf, len);
-}
-
-void
-sbpci_ban(uint16 core)
-{
- if (pci_banned < ARRAYSIZE(pci_ban))
- pci_ban[pci_banned++] = core;
-}
-
-int __init
-sbpci_init(void *sbh)
-{
- uint chip, chiprev, chippkg, coreidx, host, i;
- uint32 boardflags;
- sbpciregs_t *pci;
- sbconfig_t *sb;
- pci_config_regs *cfg;
- void *regs;
- char varname[8];
- uint wlidx = 0;
- uint16 vendor, core;
- uint8 class, subclass, progif;
- uint32 val;
- uint32 sbips_int_mask[] = { 0, SBIPS_INT1_MASK, SBIPS_INT2_MASK, SBIPS_INT3_MASK, SBIPS_INT4_MASK };
- uint32 sbips_int_shift[] = { 0, 0, SBIPS_INT2_SHIFT, SBIPS_INT3_SHIFT, SBIPS_INT4_SHIFT };
-
- chip = sb_chip(sbh);
- chiprev = sb_chiprev(sbh);
- chippkg = sb_chippkg(sbh);
- coreidx = sb_coreidx(sbh);
-
- if (!(pci = (sbpciregs_t *) sb_setcore(sbh, SB_PCI, 0)))
- return -1;
- sb_core_reset(sbh, 0);
-
- boardflags = (uint32) getintvar(NULL, "boardflags");
-
- if ((chip == BCM4310_DEVICE_ID) && (chiprev == 0))
- pci_disabled = TRUE;
-
- /*
- * The 200-pin BCM4712 package does not bond out PCI. Even when
- * PCI is bonded out, some boards may leave the pins
- * floating.
- */
- if (((chip == BCM4712_DEVICE_ID) &&
- ((chippkg == BCM4712SMALL_PKG_ID) ||
- (chippkg == BCM4712MID_PKG_ID))) ||
- (boardflags & BFL_NOPCI))
- pci_disabled = TRUE;
-
- /*
- * If the PCI core should not be touched (disabled, not bonded
- * out, or pins floating), do not even attempt to access core
- * registers. Otherwise, try to determine if it is in host
- * mode.
- */
- if (pci_disabled)
- host = 0;
- else
- host = !BUSPROBE(val, &pci->control);
-
- if (!host) {
- /* Disable PCI interrupts in client mode */
- sb = (sbconfig_t *)((ulong) pci + SBCONFIGOFF);
- W_REG(&sb->sbintvec, 0);
-
- /* Disable the PCI bridge in client mode */
- sbpci_ban(SB_PCI);
- printf("PCI: Disabled\n");
- } else {
- /* Reset the external PCI bus and enable the clock */
- W_REG(&pci->control, 0x5); /* enable the tristate drivers */
- W_REG(&pci->control, 0xd); /* enable the PCI clock */
- OSL_DELAY(150); /* delay > 100 us */
- W_REG(&pci->control, 0xf); /* deassert PCI reset */
- W_REG(&pci->arbcontrol, PCI_INT_ARB); /* use internal arbiter */
- OSL_DELAY(1); /* delay 1 us */
-
- /* Enable CardBusMode */
- cardbus = nvram_match("cardbus", "1");
- if (cardbus) {
- printf("PCI: Enabling CardBus\n");
- /* GPIO 1 resets the CardBus device on bcm94710ap */
- sb_gpioout(sbh, 1, 1);
- sb_gpioouten(sbh, 1, 1);
- W_REG(&pci->sprom[0], R_REG(&pci->sprom[0]) | 0x400);
- }
-
- /* 64 MB I/O access window */
- W_REG(&pci->sbtopci0, SBTOPCI_IO);
- /* 64 MB configuration access window */
- W_REG(&pci->sbtopci1, SBTOPCI_CFG0);
- /* 1 GB memory access window */
- W_REG(&pci->sbtopci2, SBTOPCI_MEM | SB_PCI_DMA);
-
- /* Enable PCI bridge BAR0 prefetch and burst */
- val = 6;
- sbpci_write_config(sbh, 1, 0, 0, PCI_CFG_CMD, &val, sizeof(val));
-
- /* Enable PCI interrupts */
- W_REG(&pci->intmask, PCI_INTA);
- }
-
- /* Scan the SB bus */
- bzero(sb_config_regs, sizeof(sb_config_regs));
- for (cfg = sb_config_regs; cfg < &sb_config_regs[SB_MAXCORES]; cfg++) {
- cfg->vendor = 0xffff;
- if (!(regs = sb_setcoreidx(sbh, cfg - sb_config_regs)))
- continue;
- sb = (sbconfig_t *)((ulong) regs + SBCONFIGOFF);
-
- /* Read ID register and parse vendor and core */
- val = R_REG(&sb->sbidhigh);
- vendor = (val & SBIDH_VC_MASK) >> SBIDH_VC_SHIFT;
- core = (val & SBIDH_CC_MASK) >> SBIDH_CC_SHIFT;
- progif = 0;
-
- /* Check if this core is banned */
- for (i = 0; i < pci_banned; i++)
- if (core == pci_ban[i])
- break;
- if (i < pci_banned)
- continue;
-
- /* Known vendor translations */
- switch (vendor) {
- case SB_VEND_BCM:
- vendor = VENDOR_BROADCOM;
- break;
- }
-
- /* Determine class based on known core codes */
- switch (core) {
- case SB_ILINE20:
- class = PCI_CLASS_NET;
- subclass = PCI_NET_ETHER;
- core = BCM47XX_ILINE_ID;
- break;
- case SB_ILINE100:
- class = PCI_CLASS_NET;
- subclass = PCI_NET_ETHER;
- core = BCM4610_ILINE_ID;
- break;
- case SB_ENET:
- class = PCI_CLASS_NET;
- subclass = PCI_NET_ETHER;
- core = BCM47XX_ENET_ID;
- break;
- case SB_SDRAM:
- case SB_MEMC:
- class = PCI_CLASS_MEMORY;
- subclass = PCI_MEMORY_RAM;
- break;
- case SB_PCI:
- class = PCI_CLASS_BRIDGE;
- subclass = PCI_BRIDGE_PCI;
- break;
- case SB_MIPS:
- case SB_MIPS33:
- class = PCI_CLASS_CPU;
- subclass = PCI_CPU_MIPS;
- break;
- case SB_CODEC:
- class = PCI_CLASS_COMM;
- subclass = PCI_COMM_MODEM;
- core = BCM47XX_V90_ID;
- break;
- case SB_USB:
- class = PCI_CLASS_SERIAL;
- subclass = PCI_SERIAL_USB;
- progif = 0x10; /* OHCI */
- core = BCM47XX_USB_ID;
- break;
- case SB_USB11H:
- class = PCI_CLASS_SERIAL;
- subclass = PCI_SERIAL_USB;
- progif = 0x10; /* OHCI */
- core = BCM47XX_USBH_ID;
- break;
- case SB_USB11D:
- class = PCI_CLASS_SERIAL;
- subclass = PCI_SERIAL_USB;
- core = BCM47XX_USBD_ID;
- break;
- case SB_IPSEC:
- class = PCI_CLASS_CRYPT;
- subclass = PCI_CRYPT_NETWORK;
- core = BCM47XX_IPSEC_ID;
- break;
- case SB_EXTIF:
- case SB_CC:
- class = PCI_CLASS_MEMORY;
- subclass = PCI_MEMORY_FLASH;
- break;
- case SB_D11:
- class = PCI_CLASS_NET;
- subclass = PCI_NET_OTHER;
- /* Let an nvram variable override this */
- sprintf(varname, "wl%did", wlidx);
- wlidx++;
- if ((core = getintvar(NULL, varname)) == 0) {
- if (chip == BCM4712_DEVICE_ID) {
- if (chippkg == BCM4712SMALL_PKG_ID)
- core = BCM4306_D11G_ID;
- else
- core = BCM4306_D11DUAL_ID;
- } else {
- /* 4310 */
- core = BCM4310_D11B_ID;
- }
- }
- break;
-
- default:
- class = subclass = progif = 0xff;
- break;
- }
-
- /* Supported translations */
- cfg->vendor = htol16(vendor);
- cfg->device = htol16(core);
- cfg->rev_id = chiprev;
- cfg->prog_if = progif;
- cfg->sub_class = subclass;
- cfg->base_class = class;
- cfg->base[0] = htol32(sb_base(R_REG(&sb->sbadmatch0)));
- cfg->base[1] = htol32(sb_base(R_REG(&sb->sbadmatch1)));
- cfg->base[2] = htol32(sb_base(R_REG(&sb->sbadmatch2)));
- cfg->base[3] = htol32(sb_base(R_REG(&sb->sbadmatch3)));
- cfg->base[4] = 0;
- cfg->base[5] = 0;
- if (class == PCI_CLASS_BRIDGE && subclass == PCI_BRIDGE_PCI)
- cfg->header_type = PCI_HEADER_BRIDGE;
- else
- cfg->header_type = PCI_HEADER_NORMAL;
- /* Save core interrupt flag */
- cfg->int_pin = R_REG(&sb->sbtpsflag) & SBTPS_NUM0_MASK;
- /* Default to MIPS shared interrupt 0 */
- cfg->int_line = 0;
- /* MIPS sbipsflag maps core interrupt flags to interrupts 1 through 4 */
- if ((regs = sb_setcore(sbh, SB_MIPS, 0)) ||
- (regs = sb_setcore(sbh, SB_MIPS33, 0))) {
- sb = (sbconfig_t *)((ulong) regs + SBCONFIGOFF);
- val = R_REG(&sb->sbipsflag);
- for (cfg->int_line = 1; cfg->int_line <= 4; cfg->int_line++) {
- if (((val & sbips_int_mask[cfg->int_line]) >> sbips_int_shift[cfg->int_line]) == cfg->int_pin)
- break;
- }
- if (cfg->int_line > 4)
- cfg->int_line = 0;
- }
- /* Emulated core */
- *((uint32 *) &cfg->sprom_control) = 0xffffffff;
- }
-
- sb_setcoreidx(sbh, coreidx);
- return 0;
-}
-
-void
-sbpci_check(void *sbh)
-{
- uint coreidx;
- sbpciregs_t *pci;
- uint32 sbtopci1;
- uint32 buf[64], *ptr, i;
- ulong pa;
- volatile uint j;
-
- coreidx = sb_coreidx(sbh);
- pci = (sbpciregs_t *) sb_setcore(sbh, SB_PCI, 0);
-
- /* Clear the test array */
- pa = (ulong) DMA_MAP(NULL, buf, sizeof(buf), DMA_RX, NULL);
- ptr = (uint32 *) OSL_UNCACHED(&buf[0]);
- memset(ptr, 0, sizeof(buf));
-
- /* Point PCI window 1 to memory */
- sbtopci1 = R_REG(&pci->sbtopci1);
- W_REG(&pci->sbtopci1, SBTOPCI_MEM | (pa & SBTOPCI1_MASK));
-
- /* Fill the test array via PCI window 1 */
- ptr = (uint32 *) REG_MAP(SB_PCI_CFG + (pa & ~SBTOPCI1_MASK), sizeof(buf));
- for (i = 0; i < ARRAYSIZE(buf); i++) {
- for (j = 0; j < 2; j++);
- W_REG(&ptr[i], i);
- }
- REG_UNMAP(ptr);
-
- /* Restore PCI window 1 */
- W_REG(&pci->sbtopci1, sbtopci1);
-
- /* Check the test array */
- DMA_UNMAP(NULL, pa, sizeof(buf), DMA_RX, NULL);
- ptr = (uint32 *) OSL_UNCACHED(&buf[0]);
- for (i = 0; i < ARRAYSIZE(buf); i++) {
- if (ptr[i] != i)
- break;
- }
-
- /* Change the clock if the test fails */
- if (i < ARRAYSIZE(buf)) {
- uint32 req, cur;
-
- cur = sb_clock(sbh);
- printf("PCI: Test failed at %d MHz\n", (cur + 500000) / 1000000);
- for (req = 104000000; req < 176000000; req += 4000000) {
- printf("PCI: Resetting to %d MHz\n", (req + 500000) / 1000000);
- /* This will only reset if the clocks are valid and have changed */
- sb_mips_setclock(sbh, req, 0, 0);
- }
- /* Should not reach here */
- ASSERT(0);
- }
-
- sb_setcoreidx(sbh, coreidx);
-}
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