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author | John Crispin <john@phrozen.org> | 2018-06-01 11:41:13 +0200 |
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committer | John Crispin <john@phrozen.org> | 2018-06-01 11:42:20 +0200 |
commit | 7197744cd677c9dbb387c3e93be0419292fb9307 (patch) | |
tree | ca187b1a64c896bc9f2e05470ab9c3a8aabd946b /target/linux/ramips/files-4.14 | |
parent | 69929dac89e775f01bbad9879491f7d544e32152 (diff) | |
download | upstream-7197744cd677c9dbb387c3e93be0419292fb9307.tar.gz upstream-7197744cd677c9dbb387c3e93be0419292fb9307.tar.bz2 upstream-7197744cd677c9dbb387c3e93be0419292fb9307.zip |
Revert "ramips: Move PCI driver to files directory"
This reverts commit a098a78a33a6b096d15c9982b5d6457988e09f03.
Signed-off-by: John Crispin <john@phrozen.org>
Diffstat (limited to 'target/linux/ramips/files-4.14')
-rw-r--r-- | target/linux/ramips/files-4.14/arch/mips/pci/pci-mt7621.c | 836 |
1 files changed, 0 insertions, 836 deletions
diff --git a/target/linux/ramips/files-4.14/arch/mips/pci/pci-mt7621.c b/target/linux/ramips/files-4.14/arch/mips/pci/pci-mt7621.c deleted file mode 100644 index 5125412a7c..0000000000 --- a/target/linux/ramips/files-4.14/arch/mips/pci/pci-mt7621.c +++ /dev/null @@ -1,836 +0,0 @@ -/************************************************************************** - * - * BRIEF MODULE DESCRIPTION - * PCI init for Ralink RT2880 solution - * - * Copyright 2007 Ralink Inc. (bruce_chang@ralinktech.com.tw) - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * - * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN - * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF - * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON - * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF - * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 675 Mass Ave, Cambridge, MA 02139, USA. - * - * - ************************************************************************** - * May 2007 Bruce Chang - * Initial Release - * - * May 2009 Bruce Chang - * support RT2880/RT3883 PCIe - * - * May 2011 Bruce Chang - * support RT6855/MT7620 PCIe - * - ************************************************************************** - */ - -#include <linux/types.h> -#include <linux/pci.h> -#include <linux/kernel.h> -#include <linux/slab.h> -#include <linux/version.h> -#include <asm/pci.h> -#include <asm/io.h> -#include <asm/mips-cm.h> -#include <linux/init.h> -#include <linux/module.h> -#include <linux/delay.h> -#include <linux/of.h> -#include <linux/of_pci.h> -#include <linux/of_irq.h> -#include <linux/platform_device.h> - -#include <ralink_regs.h> - -extern void pcie_phy_init(void); -extern void chk_phy_pll(void); - -/* - * These functions and structures provide the BIOS scan and mapping of the PCI - * devices. - */ - -#define CONFIG_PCIE_PORT0 -#define CONFIG_PCIE_PORT1 -#define CONFIG_PCIE_PORT2 -#define RALINK_PCIE0_CLK_EN (1<<24) -#define RALINK_PCIE1_CLK_EN (1<<25) -#define RALINK_PCIE2_CLK_EN (1<<26) - -#define RALINK_PCI_CONFIG_ADDR 0x20 -#define RALINK_PCI_CONFIG_DATA_VIRTUAL_REG 0x24 -#define RALINK_INT_PCIE0 pcie_irq[0] -#define RALINK_INT_PCIE1 pcie_irq[1] -#define RALINK_INT_PCIE2 pcie_irq[2] -#define RALINK_PCI_MEMBASE *(volatile u32 *)(RALINK_PCI_BASE + 0x0028) -#define RALINK_PCI_IOBASE *(volatile u32 *)(RALINK_PCI_BASE + 0x002C) -#define RALINK_PCIE0_RST (1<<24) -#define RALINK_PCIE1_RST (1<<25) -#define RALINK_PCIE2_RST (1<<26) -#define RALINK_SYSCTL_BASE 0xBE000000 - -#define RALINK_PCI_PCICFG_ADDR *(volatile u32 *)(RALINK_PCI_BASE + 0x0000) -#define RALINK_PCI_PCIMSK_ADDR *(volatile u32 *)(RALINK_PCI_BASE + 0x000C) -#define RALINK_PCI_BASE 0xBE140000 - -#define RALINK_PCIEPHY_P0P1_CTL_OFFSET (RALINK_PCI_BASE + 0x9000) -#define RT6855_PCIE0_OFFSET 0x2000 -#define RT6855_PCIE1_OFFSET 0x3000 -#define RT6855_PCIE2_OFFSET 0x4000 - -#define RALINK_PCI0_BAR0SETUP_ADDR *(volatile u32 *)(RALINK_PCI_BASE + RT6855_PCIE0_OFFSET + 0x0010) -#define RALINK_PCI0_IMBASEBAR0_ADDR *(volatile u32 *)(RALINK_PCI_BASE + RT6855_PCIE0_OFFSET + 0x0018) -#define RALINK_PCI0_ID *(volatile u32 *)(RALINK_PCI_BASE + RT6855_PCIE0_OFFSET + 0x0030) -#define RALINK_PCI0_CLASS *(volatile u32 *)(RALINK_PCI_BASE + RT6855_PCIE0_OFFSET + 0x0034) -#define RALINK_PCI0_SUBID *(volatile u32 *)(RALINK_PCI_BASE + RT6855_PCIE0_OFFSET + 0x0038) -#define RALINK_PCI0_STATUS *(volatile u32 *)(RALINK_PCI_BASE + RT6855_PCIE0_OFFSET + 0x0050) -#define RALINK_PCI0_DERR *(volatile u32 *)(RALINK_PCI_BASE + RT6855_PCIE0_OFFSET + 0x0060) -#define RALINK_PCI0_ECRC *(volatile u32 *)(RALINK_PCI_BASE + RT6855_PCIE0_OFFSET + 0x0064) - -#define RALINK_PCI1_BAR0SETUP_ADDR *(volatile u32 *)(RALINK_PCI_BASE + RT6855_PCIE1_OFFSET + 0x0010) -#define RALINK_PCI1_IMBASEBAR0_ADDR *(volatile u32 *)(RALINK_PCI_BASE + RT6855_PCIE1_OFFSET + 0x0018) -#define RALINK_PCI1_ID *(volatile u32 *)(RALINK_PCI_BASE + RT6855_PCIE1_OFFSET + 0x0030) -#define RALINK_PCI1_CLASS *(volatile u32 *)(RALINK_PCI_BASE + RT6855_PCIE1_OFFSET + 0x0034) -#define RALINK_PCI1_SUBID *(volatile u32 *)(RALINK_PCI_BASE + RT6855_PCIE1_OFFSET + 0x0038) -#define RALINK_PCI1_STATUS *(volatile u32 *)(RALINK_PCI_BASE + RT6855_PCIE1_OFFSET + 0x0050) -#define RALINK_PCI1_DERR *(volatile u32 *)(RALINK_PCI_BASE + RT6855_PCIE1_OFFSET + 0x0060) -#define RALINK_PCI1_ECRC *(volatile u32 *)(RALINK_PCI_BASE + RT6855_PCIE1_OFFSET + 0x0064) - -#define RALINK_PCI2_BAR0SETUP_ADDR *(volatile u32 *)(RALINK_PCI_BASE + RT6855_PCIE2_OFFSET + 0x0010) -#define RALINK_PCI2_IMBASEBAR0_ADDR *(volatile u32 *)(RALINK_PCI_BASE + RT6855_PCIE2_OFFSET + 0x0018) -#define RALINK_PCI2_ID *(volatile u32 *)(RALINK_PCI_BASE + RT6855_PCIE2_OFFSET + 0x0030) -#define RALINK_PCI2_CLASS *(volatile u32 *)(RALINK_PCI_BASE + RT6855_PCIE2_OFFSET + 0x0034) -#define RALINK_PCI2_SUBID *(volatile u32 *)(RALINK_PCI_BASE + RT6855_PCIE2_OFFSET + 0x0038) -#define RALINK_PCI2_STATUS *(volatile u32 *)(RALINK_PCI_BASE + RT6855_PCIE2_OFFSET + 0x0050) -#define RALINK_PCI2_DERR *(volatile u32 *)(RALINK_PCI_BASE + RT6855_PCIE2_OFFSET + 0x0060) -#define RALINK_PCI2_ECRC *(volatile u32 *)(RALINK_PCI_BASE + RT6855_PCIE2_OFFSET + 0x0064) - -#define RALINK_PCIEPHY_P0P1_CTL_OFFSET (RALINK_PCI_BASE + 0x9000) -#define RALINK_PCIEPHY_P2_CTL_OFFSET (RALINK_PCI_BASE + 0xA000) - - -#define MV_WRITE(ofs, data) \ - *(volatile u32 *)(RALINK_PCI_BASE+(ofs)) = cpu_to_le32(data) -#define MV_READ(ofs, data) \ - *(data) = le32_to_cpu(*(volatile u32 *)(RALINK_PCI_BASE+(ofs))) -#define MV_READ_DATA(ofs) \ - le32_to_cpu(*(volatile u32 *)(RALINK_PCI_BASE+(ofs))) - -#define MV_WRITE_16(ofs, data) \ - *(volatile u16 *)(RALINK_PCI_BASE+(ofs)) = cpu_to_le16(data) -#define MV_READ_16(ofs, data) \ - *(data) = le16_to_cpu(*(volatile u16 *)(RALINK_PCI_BASE+(ofs))) - -#define MV_WRITE_8(ofs, data) \ - *(volatile u8 *)(RALINK_PCI_BASE+(ofs)) = data -#define MV_READ_8(ofs, data) \ - *(data) = *(volatile u8 *)(RALINK_PCI_BASE+(ofs)) - - - -#define RALINK_PCI_MM_MAP_BASE 0x60000000 -#define RALINK_PCI_IO_MAP_BASE 0x1e160000 - -#define RALINK_SYSTEM_CONTROL_BASE 0xbe000000 -#define GPIO_PERST -#define ASSERT_SYSRST_PCIE(val) do { \ - if (*(unsigned int *)(0xbe00000c) == 0x00030101) \ - RALINK_RSTCTRL |= val; \ - else \ - RALINK_RSTCTRL &= ~val; \ - } while(0) -#define DEASSERT_SYSRST_PCIE(val) do { \ - if (*(unsigned int *)(0xbe00000c) == 0x00030101) \ - RALINK_RSTCTRL &= ~val; \ - else \ - RALINK_RSTCTRL |= val; \ - } while(0) -#define RALINK_SYSCFG1 *(unsigned int *)(RALINK_SYSTEM_CONTROL_BASE + 0x14) -#define RALINK_CLKCFG1 *(unsigned int *)(RALINK_SYSTEM_CONTROL_BASE + 0x30) -#define RALINK_RSTCTRL *(unsigned int *)(RALINK_SYSTEM_CONTROL_BASE + 0x34) -#define RALINK_GPIOMODE *(unsigned int *)(RALINK_SYSTEM_CONTROL_BASE + 0x60) -#define RALINK_PCIE_CLK_GEN *(unsigned int *)(RALINK_SYSTEM_CONTROL_BASE + 0x7c) -#define RALINK_PCIE_CLK_GEN1 *(unsigned int *)(RALINK_SYSTEM_CONTROL_BASE + 0x80) -#define PPLL_CFG1 *(unsigned int *)(RALINK_SYSTEM_CONTROL_BASE + 0x9c) -#define PPLL_DRV *(unsigned int *)(RALINK_SYSTEM_CONTROL_BASE + 0xa0) -//RALINK_SYSCFG1 bit -#define RALINK_PCI_HOST_MODE_EN (1<<7) -#define RALINK_PCIE_RC_MODE_EN (1<<8) -//RALINK_RSTCTRL bit -#define RALINK_PCIE_RST (1<<23) -#define RALINK_PCI_RST (1<<24) -//RALINK_CLKCFG1 bit -#define RALINK_PCI_CLK_EN (1<<19) -#define RALINK_PCIE_CLK_EN (1<<21) -//RALINK_GPIOMODE bit -#define PCI_SLOTx2 (1<<11) -#define PCI_SLOTx1 (2<<11) -//MTK PCIE PLL bit -#define PDRV_SW_SET (1<<31) -#define LC_CKDRVPD_ (1<<19) - -#define MEMORY_BASE 0x0 -static int pcie_link_status = 0; - -#define PCI_ACCESS_READ_1 0 -#define PCI_ACCESS_READ_2 1 -#define PCI_ACCESS_READ_4 2 -#define PCI_ACCESS_WRITE_1 3 -#define PCI_ACCESS_WRITE_2 4 -#define PCI_ACCESS_WRITE_4 5 - -static int pcie_irq[3]; - -static int config_access(unsigned char access_type, struct pci_bus *bus, - unsigned int devfn, unsigned int where, u32 * data) -{ - unsigned int slot = PCI_SLOT(devfn); - u8 func = PCI_FUNC(devfn); - uint32_t address_reg, data_reg; - unsigned int address; - - address_reg = RALINK_PCI_CONFIG_ADDR; - data_reg = RALINK_PCI_CONFIG_DATA_VIRTUAL_REG; - - address = (((where&0xF00)>>8)<<24) |(bus->number << 16) | (slot << 11) | (func << 8) | (where & 0xfc) | 0x80000000; - MV_WRITE(address_reg, address); - - switch(access_type) { - case PCI_ACCESS_WRITE_1: - MV_WRITE_8(data_reg+(where&0x3), *data); - break; - case PCI_ACCESS_WRITE_2: - MV_WRITE_16(data_reg+(where&0x3), *data); - break; - case PCI_ACCESS_WRITE_4: - MV_WRITE(data_reg, *data); - break; - case PCI_ACCESS_READ_1: - MV_READ_8( data_reg+(where&0x3), data); - break; - case PCI_ACCESS_READ_2: - MV_READ_16(data_reg+(where&0x3), data); - break; - case PCI_ACCESS_READ_4: - MV_READ(data_reg, data); - break; - default: - printk("no specify access type\n"); - break; - } - return 0; -} - -static int -read_config_byte(struct pci_bus *bus, unsigned int devfn, int where, u8 * val) -{ - return config_access(PCI_ACCESS_READ_1, bus, devfn, (unsigned int)where, (u32 *)val); -} - -static int -read_config_word(struct pci_bus *bus, unsigned int devfn, int where, u16 * val) -{ - return config_access(PCI_ACCESS_READ_2, bus, devfn, (unsigned int)where, (u32 *)val); -} - -static int -read_config_dword(struct pci_bus *bus, unsigned int devfn, int where, u32 * val) -{ - return config_access(PCI_ACCESS_READ_4, bus, devfn, (unsigned int)where, (u32 *)val); -} - -static int -write_config_byte(struct pci_bus *bus, unsigned int devfn, int where, u8 val) -{ - if (config_access(PCI_ACCESS_WRITE_1, bus, devfn, (unsigned int)where, (u32 *)&val)) - return -1; - - return PCIBIOS_SUCCESSFUL; -} - -static int -write_config_word(struct pci_bus *bus, unsigned int devfn, int where, u16 val) -{ - if (config_access(PCI_ACCESS_WRITE_2, bus, devfn, where, (u32 *)&val)) - return -1; - - return PCIBIOS_SUCCESSFUL; -} - -static int -write_config_dword(struct pci_bus *bus, unsigned int devfn, int where, u32 val) -{ - if (config_access(PCI_ACCESS_WRITE_4, bus, devfn, where, &val)) - return -1; - - return PCIBIOS_SUCCESSFUL; -} - - -static int -pci_config_read(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 * val) -{ - switch (size) { - case 1: - return read_config_byte(bus, devfn, where, (u8 *) val); - case 2: - return read_config_word(bus, devfn, where, (u16 *) val); - default: - return read_config_dword(bus, devfn, where, val); - } -} - -static int -pci_config_write(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 val) -{ - switch (size) { - case 1: - return write_config_byte(bus, devfn, where, (u8) val); - case 2: - return write_config_word(bus, devfn, where, (u16) val); - default: - return write_config_dword(bus, devfn, where, val); - } -} - -struct pci_ops mt7621_pci_ops= { - .read = pci_config_read, - .write = pci_config_write, -}; - -static struct resource mt7621_res_pci_mem1 = { - .name = "PCI MEM1", - .start = RALINK_PCI_MM_MAP_BASE, - .end = (u32)((RALINK_PCI_MM_MAP_BASE + (unsigned char *)0x0fffffff)), - .flags = IORESOURCE_MEM, -}; -static struct resource mt7621_res_pci_io1 = { - .name = "PCI I/O1", - .start = RALINK_PCI_IO_MAP_BASE, - .end = (u32)((RALINK_PCI_IO_MAP_BASE + (unsigned char *)0x0ffff)), - .flags = IORESOURCE_IO, -}; - -static struct pci_controller mt7621_controller = { - .pci_ops = &mt7621_pci_ops, - .mem_resource = &mt7621_res_pci_mem1, - .io_resource = &mt7621_res_pci_io1, - .mem_offset = 0x00000000UL, - .io_offset = 0x00000000UL, - .io_map_base = 0xa0000000, -}; - -static void -read_config(unsigned long bus, unsigned long dev, unsigned long func, unsigned long reg, unsigned long *val) -{ - unsigned int address_reg, data_reg, address; - - address_reg = RALINK_PCI_CONFIG_ADDR; - data_reg = RALINK_PCI_CONFIG_DATA_VIRTUAL_REG; - address = (((reg & 0xF00)>>8)<<24) | (bus << 16) | (dev << 11) | (func << 8) | (reg & 0xfc) | 0x80000000 ; - MV_WRITE(address_reg, address); - MV_READ(data_reg, val); - return; -} - -static void -write_config(unsigned long bus, unsigned long dev, unsigned long func, unsigned long reg, unsigned long val) -{ - unsigned int address_reg, data_reg, address; - - address_reg = RALINK_PCI_CONFIG_ADDR; - data_reg = RALINK_PCI_CONFIG_DATA_VIRTUAL_REG; - address = (((reg & 0xF00)>>8)<<24) | (bus << 16) | (dev << 11) | (func << 8) | (reg & 0xfc) | 0x80000000 ; - MV_WRITE(address_reg, address); - MV_WRITE(data_reg, val); - return; -} - - -int -pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) -{ - u16 cmd; - u32 val; - int irq = 0; - - if ((dev->bus->number == 0) && (slot == 0)) { - write_config(0, 0, 0, PCI_BASE_ADDRESS_0, MEMORY_BASE); - read_config(0, 0, 0, PCI_BASE_ADDRESS_0, (unsigned long *)&val); - printk("BAR0 at slot 0 = %x\n", val); - printk("bus=0x%x, slot = 0x%x\n",dev->bus->number, slot); - } else if((dev->bus->number == 0) && (slot == 0x1)) { - write_config(0, 1, 0, PCI_BASE_ADDRESS_0, MEMORY_BASE); - read_config(0, 1, 0, PCI_BASE_ADDRESS_0, (unsigned long *)&val); - printk("BAR0 at slot 1 = %x\n", val); - printk("bus=0x%x, slot = 0x%x\n",dev->bus->number, slot); - } else if((dev->bus->number == 0) && (slot == 0x2)) { - write_config(0, 2, 0, PCI_BASE_ADDRESS_0, MEMORY_BASE); - read_config(0, 2, 0, PCI_BASE_ADDRESS_0, (unsigned long *)&val); - printk("BAR0 at slot 2 = %x\n", val); - printk("bus=0x%x, slot = 0x%x\n",dev->bus->number, slot); - } else if ((dev->bus->number == 1) && (slot == 0x0)) { - switch (pcie_link_status) { - case 2: - case 6: - irq = RALINK_INT_PCIE1; - break; - case 4: - irq = RALINK_INT_PCIE2; - break; - default: - irq = RALINK_INT_PCIE0; - } - printk("bus=0x%x, slot = 0x%x, irq=0x%x\n",dev->bus->number, slot, dev->irq); - } else if ((dev->bus->number == 2) && (slot == 0x0)) { - switch (pcie_link_status) { - case 5: - case 6: - irq = RALINK_INT_PCIE2; - break; - default: - irq = RALINK_INT_PCIE1; - } - printk("bus=0x%x, slot = 0x%x, irq=0x%x\n",dev->bus->number, slot, dev->irq); - } else if ((dev->bus->number == 2) && (slot == 0x1)) { - switch (pcie_link_status) { - case 5: - case 6: - irq = RALINK_INT_PCIE2; - break; - default: - irq = RALINK_INT_PCIE1; - } - printk("bus=0x%x, slot = 0x%x, irq=0x%x\n",dev->bus->number, slot, dev->irq); - } else if ((dev->bus->number ==3) && (slot == 0x0)) { - irq = RALINK_INT_PCIE2; - printk("bus=0x%x, slot = 0x%x, irq=0x%x\n",dev->bus->number, slot, dev->irq); - } else if ((dev->bus->number ==3) && (slot == 0x1)) { - irq = RALINK_INT_PCIE2; - printk("bus=0x%x, slot = 0x%x, irq=0x%x\n",dev->bus->number, slot, dev->irq); - } else if ((dev->bus->number ==3) && (slot == 0x2)) { - irq = RALINK_INT_PCIE2; - printk("bus=0x%x, slot = 0x%x, irq=0x%x\n",dev->bus->number, slot, dev->irq); - } else { - printk("bus=0x%x, slot = 0x%x\n",dev->bus->number, slot); - return 0; - } - - pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE, 0x14); //configure cache line size 0x14 - pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0xFF); //configure latency timer 0x10 - pci_read_config_word(dev, PCI_COMMAND, &cmd); - cmd = cmd | PCI_COMMAND_MASTER | PCI_COMMAND_IO | PCI_COMMAND_MEMORY; - pci_write_config_word(dev, PCI_COMMAND, cmd); - pci_write_config_byte(dev, PCI_INTERRUPT_LINE, irq); - return irq; -} - -void -set_pcie_phy(u32 *addr, int start_b, int bits, int val) -{ -// printk("0x%p:", addr); -// printk(" %x", *addr); - *(unsigned int *)(addr) &= ~(((1<<bits) - 1)<<start_b); - *(unsigned int *)(addr) |= val << start_b; -// printk(" -> %x\n", *addr); -} - -void -bypass_pipe_rst(void) -{ -#if defined (CONFIG_PCIE_PORT0) - /* PCIe Port 0 */ - set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x02c), 12, 1, 0x01); // rg_pe1_pipe_rst_b - set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x02c), 4, 1, 0x01); // rg_pe1_pipe_cmd_frc[4] -#endif -#if defined (CONFIG_PCIE_PORT1) - /* PCIe Port 1 */ - set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x12c), 12, 1, 0x01); // rg_pe1_pipe_rst_b - set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x12c), 4, 1, 0x01); // rg_pe1_pipe_cmd_frc[4] -#endif -#if defined (CONFIG_PCIE_PORT2) - /* PCIe Port 2 */ - set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x02c), 12, 1, 0x01); // rg_pe1_pipe_rst_b - set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x02c), 4, 1, 0x01); // rg_pe1_pipe_cmd_frc[4] -#endif -} - -void -set_phy_for_ssc(void) -{ - unsigned long reg = (*(volatile u32 *)(RALINK_SYSCTL_BASE + 0x10)); - - reg = (reg >> 6) & 0x7; -#if defined (CONFIG_PCIE_PORT0) || defined (CONFIG_PCIE_PORT1) - /* Set PCIe Port0 & Port1 PHY to disable SSC */ - /* Debug Xtal Type */ - set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x400), 8, 1, 0x01); // rg_pe1_frc_h_xtal_type - set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x400), 9, 2, 0x00); // rg_pe1_h_xtal_type - set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x000), 4, 1, 0x01); // rg_pe1_frc_phy_en //Force Port 0 enable control - set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x100), 4, 1, 0x01); // rg_pe1_frc_phy_en //Force Port 1 enable control - set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x000), 5, 1, 0x00); // rg_pe1_phy_en //Port 0 disable - set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x100), 5, 1, 0x00); // rg_pe1_phy_en //Port 1 disable - if(reg <= 5 && reg >= 3) { // 40MHz Xtal - set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x490), 6, 2, 0x01); // RG_PE1_H_PLL_PREDIV //Pre-divider ratio (for host mode) - printk("***** Xtal 40MHz *****\n"); - } else { // 25MHz | 20MHz Xtal - set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x490), 6, 2, 0x00); // RG_PE1_H_PLL_PREDIV //Pre-divider ratio (for host mode) - if (reg >= 6) { - printk("***** Xtal 25MHz *****\n"); - set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x4bc), 4, 2, 0x01); // RG_PE1_H_PLL_FBKSEL //Feedback clock select - set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x49c), 0,31, 0x18000000); // RG_PE1_H_LCDDS_PCW_NCPO //DDS NCPO PCW (for host mode) - set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x4a4), 0,16, 0x18d); // RG_PE1_H_LCDDS_SSC_PRD //DDS SSC dither period control - set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x4a8), 0,12, 0x4a); // RG_PE1_H_LCDDS_SSC_DELTA //DDS SSC dither amplitude control - set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x4a8), 16,12, 0x4a); // RG_PE1_H_LCDDS_SSC_DELTA1 //DDS SSC dither amplitude control for initial - } else { - printk("***** Xtal 20MHz *****\n"); - } - } - set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x4a0), 5, 1, 0x01); // RG_PE1_LCDDS_CLK_PH_INV //DDS clock inversion - set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x490), 22, 2, 0x02); // RG_PE1_H_PLL_BC - set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x490), 18, 4, 0x06); // RG_PE1_H_PLL_BP - set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x490), 12, 4, 0x02); // RG_PE1_H_PLL_IR - set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x490), 8, 4, 0x01); // RG_PE1_H_PLL_IC - set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x4ac), 16, 3, 0x00); // RG_PE1_H_PLL_BR - set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x490), 1, 3, 0x02); // RG_PE1_PLL_DIVEN - if(reg <= 5 && reg >= 3) { // 40MHz Xtal - set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x414), 6, 2, 0x01); // rg_pe1_mstckdiv //value of da_pe1_mstckdiv when force mode enable - set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x414), 5, 1, 0x01); // rg_pe1_frc_mstckdiv //force mode enable of da_pe1_mstckdiv - } - /* Enable PHY and disable force mode */ - set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x000), 5, 1, 0x01); // rg_pe1_phy_en //Port 0 enable - set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x100), 5, 1, 0x01); // rg_pe1_phy_en //Port 1 enable - set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x000), 4, 1, 0x00); // rg_pe1_frc_phy_en //Force Port 0 disable control - set_pcie_phy((u32 *)(RALINK_PCIEPHY_P0P1_CTL_OFFSET + 0x100), 4, 1, 0x00); // rg_pe1_frc_phy_en //Force Port 1 disable control -#endif -#if defined (CONFIG_PCIE_PORT2) - /* Set PCIe Port2 PHY to disable SSC */ - /* Debug Xtal Type */ - set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x400), 8, 1, 0x01); // rg_pe1_frc_h_xtal_type - set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x400), 9, 2, 0x00); // rg_pe1_h_xtal_type - set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x000), 4, 1, 0x01); // rg_pe1_frc_phy_en //Force Port 0 enable control - set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x000), 5, 1, 0x00); // rg_pe1_phy_en //Port 0 disable - if(reg <= 5 && reg >= 3) { // 40MHz Xtal - set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x490), 6, 2, 0x01); // RG_PE1_H_PLL_PREDIV //Pre-divider ratio (for host mode) - } else { // 25MHz | 20MHz Xtal - set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x490), 6, 2, 0x00); // RG_PE1_H_PLL_PREDIV //Pre-divider ratio (for host mode) - if (reg >= 6) { // 25MHz Xtal - set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x4bc), 4, 2, 0x01); // RG_PE1_H_PLL_FBKSEL //Feedback clock select - set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x49c), 0,31, 0x18000000); // RG_PE1_H_LCDDS_PCW_NCPO //DDS NCPO PCW (for host mode) - set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x4a4), 0,16, 0x18d); // RG_PE1_H_LCDDS_SSC_PRD //DDS SSC dither period control - set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x4a8), 0,12, 0x4a); // RG_PE1_H_LCDDS_SSC_DELTA //DDS SSC dither amplitude control - set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x4a8), 16,12, 0x4a); // RG_PE1_H_LCDDS_SSC_DELTA1 //DDS SSC dither amplitude control for initial - } - } - set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x4a0), 5, 1, 0x01); // RG_PE1_LCDDS_CLK_PH_INV //DDS clock inversion - set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x490), 22, 2, 0x02); // RG_PE1_H_PLL_BC - set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x490), 18, 4, 0x06); // RG_PE1_H_PLL_BP - set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x490), 12, 4, 0x02); // RG_PE1_H_PLL_IR - set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x490), 8, 4, 0x01); // RG_PE1_H_PLL_IC - set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x4ac), 16, 3, 0x00); // RG_PE1_H_PLL_BR - set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x490), 1, 3, 0x02); // RG_PE1_PLL_DIVEN - if(reg <= 5 && reg >= 3) { // 40MHz Xtal - set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x414), 6, 2, 0x01); // rg_pe1_mstckdiv //value of da_pe1_mstckdiv when force mode enable - set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x414), 5, 1, 0x01); // rg_pe1_frc_mstckdiv //force mode enable of da_pe1_mstckdiv - } - /* Enable PHY and disable force mode */ - set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x000), 5, 1, 0x01); // rg_pe1_phy_en //Port 0 enable - set_pcie_phy((u32 *)(RALINK_PCIEPHY_P2_CTL_OFFSET + 0x000), 4, 1, 0x00); // rg_pe1_frc_phy_en //Force Port 0 disable control -#endif -} - -void setup_cm_memory_region(struct resource *mem_resource) -{ - resource_size_t mask; - if (mips_cps_numiocu(0)) { - /* FIXME: hardware doesn't accept mask values with 1s after - 0s (e.g. 0xffef), so it would be great to warn if that's - about to happen */ - mask = ~(mem_resource->end - mem_resource->start); - - write_gcr_reg1_base(mem_resource->start); - write_gcr_reg1_mask(mask | CM_GCR_REGn_MASK_CMTGT_IOCU0); - printk("PCI coherence region base: 0x%08lx, mask/settings: 0x%08lx\n", - read_gcr_reg1_base(), - read_gcr_reg1_mask()); - } -} - -static int mt7621_pci_probe(struct platform_device *pdev) -{ - unsigned long val = 0; - int i; - - for (i = 0; i < 3; i++) - pcie_irq[i] = irq_of_parse_and_map(pdev->dev.of_node, i); - - iomem_resource.start = 0; - iomem_resource.end= ~0; - ioport_resource.start= 0; - ioport_resource.end = ~0; - -#if defined (CONFIG_PCIE_PORT0) - val = RALINK_PCIE0_RST; -#endif -#if defined (CONFIG_PCIE_PORT1) - val |= RALINK_PCIE1_RST; -#endif -#if defined (CONFIG_PCIE_PORT2) - val |= RALINK_PCIE2_RST; -#endif - ASSERT_SYSRST_PCIE(RALINK_PCIE0_RST | RALINK_PCIE1_RST | RALINK_PCIE2_RST); - printk("pull PCIe RST: RALINK_RSTCTRL = %x\n", RALINK_RSTCTRL); -#if defined GPIO_PERST /* add GPIO control instead of PERST_N */ /*chhung*/ - *(unsigned int *)(0xbe000060) &= ~(0x3<<10 | 0x3<<3); - *(unsigned int *)(0xbe000060) |= 0x1<<10 | 0x1<<3; - mdelay(100); - *(unsigned int *)(0xbe000600) |= 0x1<<19 | 0x1<<8 | 0x1<<7; // use GPIO19/GPIO8/GPIO7 (PERST_N/UART_RXD3/UART_TXD3) - mdelay(100); - *(unsigned int *)(0xbe000620) &= ~(0x1<<19 | 0x1<<8 | 0x1<<7); // clear DATA - - mdelay(100); -#else - *(unsigned int *)(0xbe000060) &= ~0x00000c00; -#endif -#if defined (CONFIG_PCIE_PORT0) - val = RALINK_PCIE0_RST; -#endif -#if defined (CONFIG_PCIE_PORT1) - val |= RALINK_PCIE1_RST; -#endif -#if defined (CONFIG_PCIE_PORT2) - val |= RALINK_PCIE2_RST; -#endif - DEASSERT_SYSRST_PCIE(val); - printk("release PCIe RST: RALINK_RSTCTRL = %x\n", RALINK_RSTCTRL); - - if ((*(unsigned int *)(0xbe00000c)&0xFFFF) == 0x0101) // MT7621 E2 - bypass_pipe_rst(); - set_phy_for_ssc(); - printk("release PCIe RST: RALINK_RSTCTRL = %x\n", RALINK_RSTCTRL); - -#if defined (CONFIG_PCIE_PORT0) - read_config(0, 0, 0, 0x70c, &val); - printk("Port 0 N_FTS = %x\n", (unsigned int)val); -#endif -#if defined (CONFIG_PCIE_PORT1) - read_config(0, 1, 0, 0x70c, &val); - printk("Port 1 N_FTS = %x\n", (unsigned int)val); -#endif -#if defined (CONFIG_PCIE_PORT2) - read_config(0, 2, 0, 0x70c, &val); - printk("Port 2 N_FTS = %x\n", (unsigned int)val); -#endif - - RALINK_RSTCTRL = (RALINK_RSTCTRL | RALINK_PCIE_RST); - RALINK_SYSCFG1 &= ~(0x30); - RALINK_SYSCFG1 |= (2<<4); - RALINK_PCIE_CLK_GEN &= 0x7fffffff; - RALINK_PCIE_CLK_GEN1 &= 0x80ffffff; - RALINK_PCIE_CLK_GEN1 |= 0xa << 24; - RALINK_PCIE_CLK_GEN |= 0x80000000; - mdelay(50); - RALINK_RSTCTRL = (RALINK_RSTCTRL & ~RALINK_PCIE_RST); - - -#if defined GPIO_PERST /* add GPIO control instead of PERST_N */ /*chhung*/ - *(unsigned int *)(0xbe000620) |= 0x1<<19 | 0x1<<8 | 0x1<<7; // set DATA - mdelay(100); -#else - RALINK_PCI_PCICFG_ADDR &= ~(1<<1); //de-assert PERST -#endif - mdelay(500); - - - mdelay(500); -#if defined (CONFIG_PCIE_PORT0) - if(( RALINK_PCI0_STATUS & 0x1) == 0) - { - printk("PCIE0 no card, disable it(RST&CLK)\n"); - ASSERT_SYSRST_PCIE(RALINK_PCIE0_RST); - RALINK_CLKCFG1 = (RALINK_CLKCFG1 & ~RALINK_PCIE0_CLK_EN); - pcie_link_status &= ~(1<<0); - } else { - pcie_link_status |= 1<<0; - RALINK_PCI_PCIMSK_ADDR |= (1<<20); // enable pcie1 interrupt - } -#endif -#if defined (CONFIG_PCIE_PORT1) - if(( RALINK_PCI1_STATUS & 0x1) == 0) - { - printk("PCIE1 no card, disable it(RST&CLK)\n"); - ASSERT_SYSRST_PCIE(RALINK_PCIE1_RST); - RALINK_CLKCFG1 = (RALINK_CLKCFG1 & ~RALINK_PCIE1_CLK_EN); - pcie_link_status &= ~(1<<1); - } else { - pcie_link_status |= 1<<1; - RALINK_PCI_PCIMSK_ADDR |= (1<<21); // enable pcie1 interrupt - } -#endif -#if defined (CONFIG_PCIE_PORT2) - if (( RALINK_PCI2_STATUS & 0x1) == 0) { - printk("PCIE2 no card, disable it(RST&CLK)\n"); - ASSERT_SYSRST_PCIE(RALINK_PCIE2_RST); - RALINK_CLKCFG1 = (RALINK_CLKCFG1 & ~RALINK_PCIE2_CLK_EN); - pcie_link_status &= ~(1<<2); - } else { - pcie_link_status |= 1<<2; - RALINK_PCI_PCIMSK_ADDR |= (1<<22); // enable pcie2 interrupt - } -#endif - if (pcie_link_status == 0) - return 0; - -/* -pcie(2/1/0) link status pcie2_num pcie1_num pcie0_num -3'b000 x x x -3'b001 x x 0 -3'b010 x 0 x -3'b011 x 1 0 -3'b100 0 x x -3'b101 1 x 0 -3'b110 1 0 x -3'b111 2 1 0 -*/ - switch(pcie_link_status) { - case 2: - RALINK_PCI_PCICFG_ADDR &= ~0x00ff0000; - RALINK_PCI_PCICFG_ADDR |= 0x1 << 16; //port0 - RALINK_PCI_PCICFG_ADDR |= 0x0 << 20; //port1 - break; - case 4: - RALINK_PCI_PCICFG_ADDR &= ~0x0fff0000; - RALINK_PCI_PCICFG_ADDR |= 0x1 << 16; //port0 - RALINK_PCI_PCICFG_ADDR |= 0x2 << 20; //port1 - RALINK_PCI_PCICFG_ADDR |= 0x0 << 24; //port2 - break; - case 5: - RALINK_PCI_PCICFG_ADDR &= ~0x0fff0000; - RALINK_PCI_PCICFG_ADDR |= 0x0 << 16; //port0 - RALINK_PCI_PCICFG_ADDR |= 0x2 << 20; //port1 - RALINK_PCI_PCICFG_ADDR |= 0x1 << 24; //port2 - break; - case 6: - RALINK_PCI_PCICFG_ADDR &= ~0x0fff0000; - RALINK_PCI_PCICFG_ADDR |= 0x2 << 16; //port0 - RALINK_PCI_PCICFG_ADDR |= 0x0 << 20; //port1 - RALINK_PCI_PCICFG_ADDR |= 0x1 << 24; //port2 - break; - } - printk(" -> %x\n", RALINK_PCI_PCICFG_ADDR); - //printk(" RALINK_PCI_ARBCTL = %x\n", RALINK_PCI_ARBCTL); - -/* - ioport_resource.start = mt7621_res_pci_io1.start; - ioport_resource.end = mt7621_res_pci_io1.end; -*/ - - RALINK_PCI_MEMBASE = 0xffffffff; //RALINK_PCI_MM_MAP_BASE; - RALINK_PCI_IOBASE = RALINK_PCI_IO_MAP_BASE; - -#if defined (CONFIG_PCIE_PORT0) - //PCIe0 - if((pcie_link_status & 0x1) != 0) { - RALINK_PCI0_BAR0SETUP_ADDR = 0x7FFF0001; //open 7FFF:2G; ENABLE - RALINK_PCI0_IMBASEBAR0_ADDR = MEMORY_BASE; - RALINK_PCI0_CLASS = 0x06040001; - printk("PCIE0 enabled\n"); - } -#endif -#if defined (CONFIG_PCIE_PORT1) - //PCIe1 - if ((pcie_link_status & 0x2) != 0) { - RALINK_PCI1_BAR0SETUP_ADDR = 0x7FFF0001; //open 7FFF:2G; ENABLE - RALINK_PCI1_IMBASEBAR0_ADDR = MEMORY_BASE; - RALINK_PCI1_CLASS = 0x06040001; - printk("PCIE1 enabled\n"); - } -#endif -#if defined (CONFIG_PCIE_PORT2) - //PCIe2 - if ((pcie_link_status & 0x4) != 0) { - RALINK_PCI2_BAR0SETUP_ADDR = 0x7FFF0001; //open 7FFF:2G; ENABLE - RALINK_PCI2_IMBASEBAR0_ADDR = MEMORY_BASE; - RALINK_PCI2_CLASS = 0x06040001; - printk("PCIE2 enabled\n"); - } -#endif - - - switch(pcie_link_status) { - case 7: - read_config(0, 2, 0, 0x4, &val); - write_config(0, 2, 0, 0x4, val|0x4); - // write_config(0, 1, 0, 0x4, val|0x7); - read_config(0, 2, 0, 0x70c, &val); - val &= ~(0xff)<<8; - val |= 0x50<<8; - write_config(0, 2, 0, 0x70c, val); - case 3: - case 5: - case 6: - read_config(0, 1, 0, 0x4, &val); - write_config(0, 1, 0, 0x4, val|0x4); - // write_config(0, 1, 0, 0x4, val|0x7); - read_config(0, 1, 0, 0x70c, &val); - val &= ~(0xff)<<8; - val |= 0x50<<8; - write_config(0, 1, 0, 0x70c, val); - default: - read_config(0, 0, 0, 0x4, &val); - write_config(0, 0, 0, 0x4, val|0x4); //bus master enable - // write_config(0, 0, 0, 0x4, val|0x7); //bus master enable - read_config(0, 0, 0, 0x70c, &val); - val &= ~(0xff)<<8; - val |= 0x50<<8; - write_config(0, 0, 0, 0x70c, val); - } - - pci_load_of_ranges(&mt7621_controller, pdev->dev.of_node); - setup_cm_memory_region(mt7621_controller.mem_resource); - register_pci_controller(&mt7621_controller); - return 0; - -} - -int pcibios_plat_dev_init(struct pci_dev *dev) -{ - return 0; -} - -static const struct of_device_id mt7621_pci_ids[] = { - { .compatible = "mediatek,mt7621-pci" }, - {}, -}; -MODULE_DEVICE_TABLE(of, mt7621_pci_ids); - -static struct platform_driver mt7621_pci_driver = { - .probe = mt7621_pci_probe, - .driver = { - .name = "mt7621-pci", - .owner = THIS_MODULE, - .of_match_table = of_match_ptr(mt7621_pci_ids), - }, -}; - -static int __init mt7621_pci_init(void) -{ - return platform_driver_register(&mt7621_pci_driver); -} - -arch_initcall(mt7621_pci_init); |