aboutsummaryrefslogtreecommitdiffstats
path: root/target/linux/ramips/patches-3.18/0016-MIPS-ralink-add-MT7621-pcie-driver.patch
diff options
context:
space:
mode:
Diffstat (limited to 'target/linux/ramips/patches-3.18/0016-MIPS-ralink-add-MT7621-pcie-driver.patch')
-rw-r--r--target/linux/ramips/patches-3.18/0016-MIPS-ralink-add-MT7621-pcie-driver.patch838
1 files changed, 838 insertions, 0 deletions
diff --git a/target/linux/ramips/patches-3.18/0016-MIPS-ralink-add-MT7621-pcie-driver.patch b/target/linux/ramips/patches-3.18/0016-MIPS-ralink-add-MT7621-pcie-driver.patch
new file mode 100644
index 0000000..2154e8a
--- /dev/null
+++ b/target/linux/ramips/patches-3.18/0016-MIPS-ralink-add-MT7621-pcie-driver.patch
@@ -0,0 +1,838 @@
+From 95d7eb13a864ef666cea7f0e86349e86d80d28ce Mon Sep 17 00:00:00 2001
+From: John Crispin <blogic@openwrt.org>
+Date: Sun, 16 Mar 2014 05:22:39 +0000
+Subject: [PATCH 16/57] MIPS: ralink: add MT7621 pcie driver
+
+Signed-off-by: John Crispin <blogic@openwrt.org>
+---
+ arch/mips/pci/Makefile | 1 +
+ arch/mips/pci/pci-mt7621.c | 797 ++++++++++++++++++++++++++++++++++++++++++++
+ 2 files changed, 798 insertions(+)
+ create mode 100644 arch/mips/pci/pci-mt7621.c
+
+--- a/arch/mips/pci/Makefile
++++ b/arch/mips/pci/Makefile
+@@ -42,6 +42,7 @@ obj-$(CONFIG_SIBYTE_BCM1x80) += pci-bcm1
+ obj-$(CONFIG_SNI_RM) += fixup-sni.o ops-sni.o
+ obj-$(CONFIG_LANTIQ) += fixup-lantiq.o
+ obj-$(CONFIG_PCI_LANTIQ) += pci-lantiq.o ops-lantiq.o
++obj-$(CONFIG_SOC_MT7621) += pci-mt7621.o
+ obj-$(CONFIG_SOC_RT3883) += pci-rt3883.o
+ obj-$(CONFIG_TANBAC_TB0219) += fixup-tb0219.o
+ obj-$(CONFIG_TANBAC_TB0226) += fixup-tb0226.o
+--- /dev/null
++++ b/arch/mips/pci/pci-mt7621.c
+@@ -0,0 +1,813 @@
++/**************************************************************************
++ *
++ * 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 <linux/init.h>
++#include <linux/module.h>
++#include <linux/delay.h>
++#include <linux/of.h>
++#include <linux/of_pci.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 SURFBOARDINT_PCIE0 12 /* PCIE0 */
++#define RALINK_INT_PCIE0 SURFBOARDINT_PCIE0
++#define RALINK_INT_PCIE1 SURFBOARDINT_PCIE1
++#define RALINK_INT_PCIE2 SURFBOARDINT_PCIE2
++#define SURFBOARDINT_PCIE1 32 /* PCIE1 */
++#define SURFBOARDINT_PCIE2 33 /* PCIE2 */
++#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 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 __init
++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
++}
++
++static int mt7621_pci_probe(struct platform_device *pdev)
++{
++ unsigned long val = 0;
++
++ 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);
++ 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);
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-09 10:18:44 +0000