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author | John Crispin <blogic@openwrt.org> | 2013-08-14 18:15:15 +0000 |
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committer | John Crispin <blogic@openwrt.org> | 2013-08-14 18:15:15 +0000 |
commit | b9aed7de867a25b5b25ec73107aad58694920dab (patch) | |
tree | d43e79ac4ba86ff1867147c7e55ff19ace92cb9a /target/linux/ramips/patches-3.10/0013-PCI-MIPS-adds-mt7620a-pcie-driver.patch | |
parent | 4e0f16aad4b317d3625bba23334f44053672cf43 (diff) | |
download | upstream-b9aed7de867a25b5b25ec73107aad58694920dab.tar.gz upstream-b9aed7de867a25b5b25ec73107aad58694920dab.tar.bz2 upstream-b9aed7de867a25b5b25ec73107aad58694920dab.zip |
ramips: update v3.10 patches
Sync the patches with those sent upstream for v3.12.
Signed-off-by: John Crispin <blogic@openwrt.org>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@37778 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/ramips/patches-3.10/0013-PCI-MIPS-adds-mt7620a-pcie-driver.patch')
-rw-r--r-- | target/linux/ramips/patches-3.10/0013-PCI-MIPS-adds-mt7620a-pcie-driver.patch | 399 |
1 files changed, 0 insertions, 399 deletions
diff --git a/target/linux/ramips/patches-3.10/0013-PCI-MIPS-adds-mt7620a-pcie-driver.patch b/target/linux/ramips/patches-3.10/0013-PCI-MIPS-adds-mt7620a-pcie-driver.patch deleted file mode 100644 index 0d31f73976..0000000000 --- a/target/linux/ramips/patches-3.10/0013-PCI-MIPS-adds-mt7620a-pcie-driver.patch +++ /dev/null @@ -1,399 +0,0 @@ -From ded577553b06a85c12a89b8fbcfa2b51f30bc037 Mon Sep 17 00:00:00 2001 -From: John Crispin <blogic@openwrt.org> -Date: Sat, 18 May 2013 22:06:15 +0200 -Subject: [PATCH 13/33] PCI: MIPS: adds mt7620a pcie driver - -Signed-off-by: John Crispin <blogic@openwrt.org> ---- - arch/mips/pci/Makefile | 1 + - arch/mips/pci/pci-mt7620a.c | 363 +++++++++++++++++++++++++++++++++++++++++++ - arch/mips/ralink/Kconfig | 1 + - 3 files changed, 365 insertions(+) - create mode 100644 arch/mips/pci/pci-mt7620a.c - ---- a/arch/mips/pci/Makefile -+++ b/arch/mips/pci/Makefile -@@ -43,6 +43,7 @@ obj-$(CONFIG_LANTIQ) += fixup-lantiq.o - obj-$(CONFIG_PCI_LANTIQ) += pci-lantiq.o ops-lantiq.o - obj-$(CONFIG_SOC_RT2880) += pci-rt2880.o - obj-$(CONFIG_SOC_RT3883) += pci-rt3883.o -+obj-$(CONFIG_SOC_MT7620) += pci-mt7620a.o - obj-$(CONFIG_TANBAC_TB0219) += fixup-tb0219.o - obj-$(CONFIG_TANBAC_TB0226) += fixup-tb0226.o - obj-$(CONFIG_TANBAC_TB0287) += fixup-tb0287.o ---- /dev/null -+++ b/arch/mips/pci/pci-mt7620a.c -@@ -0,0 +1,363 @@ -+/* -+ * Ralink MT7620A SoC PCI support -+ * -+ * Copyright (C) 2007-2013 Bruce Chang -+ * Copyright (C) 2013 John Crispin <blogic@openwrt.org> -+ * -+ * This program is free software; you can redistribute it and/or modify it -+ * under the terms of the GNU General Public License version 2 as published -+ * by the Free Software Foundation. -+ */ -+ -+#include <linux/types.h> -+#include <linux/pci.h> -+#include <linux/io.h> -+#include <linux/init.h> -+#include <linux/delay.h> -+#include <linux/interrupt.h> -+#include <linux/module.h> -+#include <linux/of.h> -+#include <linux/of_irq.h> -+#include <linux/of_pci.h> -+#include <linux/reset.h> -+#include <linux/platform_device.h> -+ -+#include <asm/mach-ralink/ralink_regs.h> -+ -+#define RALINK_PCI_MM_MAP_BASE 0x20000000 -+#define RALINK_PCI_IO_MAP_BASE 0x10160000 -+ -+#define RALINK_INT_PCIE0 4 -+#define RALINK_SYSTEM_CONTROL_BASE 0xb0000000 -+#define RALINK_SYSCFG1 0x14 -+#define RALINK_CLKCFG1 0x30 -+#define RALINK_GPIOMODE 0x60 -+#define RALINK_PCIE_CLK_GEN 0x7c -+#define RALINK_PCIE_CLK_GEN1 0x80 -+#define PCIEPHY0_CFG 0x90 -+#define PPLL_CFG1 0x9c -+#define PPLL_DRV 0xa0 -+#define RALINK_PCI_HOST_MODE_EN (1<<7) -+#define RALINK_PCIE_RC_MODE_EN (1<<8) -+#define RALINK_PCIE_RST (1<<23) -+#define RALINK_PCI_RST (1<<24) -+#define RALINK_PCI_CLK_EN (1<<19) -+#define RALINK_PCIE_CLK_EN (1<<21) -+#define PCI_SLOTx2 (1<<11) -+#define PCI_SLOTx1 (2<<11) -+#define PDRV_SW_SET (1<<31) -+#define LC_CKDRVPD_ (1<<19) -+ -+#define RALINK_PCI_CONFIG_ADDR 0x20 -+#define RALINK_PCI_CONFIG_DATA_VIRTUAL_REG 0x24 -+#define MEMORY_BASE 0x0 -+#define RALINK_PCIE0_RST (1<<26) -+#define RALINK_PCI_BASE 0xB0140000 -+#define RALINK_PCI_MEMBASE 0x28 -+#define RALINK_PCI_IOBASE 0x2C -+ -+#define RT6855_PCIE0_OFFSET 0x2000 -+ -+#define RALINK_PCI_PCICFG_ADDR 0x00 -+#define RALINK_PCI0_BAR0SETUP_ADDR 0x10 -+#define RALINK_PCI0_IMBASEBAR0_ADDR 0x18 -+#define RALINK_PCI0_ID 0x30 -+#define RALINK_PCI0_CLASS 0x34 -+#define RALINK_PCI0_SUBID 0x38 -+#define RALINK_PCI0_STATUS 0x50 -+#define RALINK_PCI_PCIMSK_ADDR 0x0C -+ -+#define RALINK_PCIE0_CLK_EN (1 << 26) -+ -+#define BUSY 0x80000000 -+#define WAITRETRY_MAX 10 -+#define WRITE_MODE (1UL << 23) -+#define DATA_SHIFT 0 -+#define ADDR_SHIFT 8 -+ -+ -+static void __iomem *bridge_base; -+static void __iomem *pcie_base; -+ -+static struct reset_control *rstpcie0; -+ -+static inline void bridge_w32(u32 val, unsigned reg) -+{ -+ iowrite32(val, bridge_base + reg); -+} -+ -+static inline u32 bridge_r32(unsigned reg) -+{ -+ return ioread32(bridge_base + reg); -+} -+ -+static inline void pcie_w32(u32 val, unsigned reg) -+{ -+ iowrite32(val, pcie_base + reg); -+} -+ -+static inline u32 pcie_r32(unsigned reg) -+{ -+ return ioread32(pcie_base + reg); -+} -+ -+static inline void pcie_m32(u32 clr, u32 set, unsigned reg) -+{ -+ u32 val = pcie_r32(reg); -+ val &= ~clr; -+ val |= set; -+ pcie_w32(val, reg); -+} -+ -+int wait_pciephy_busy(void) -+{ -+ unsigned long reg_value = 0x0, retry = 0; -+ -+ while (1) { -+ //reg_value = rareg(READMODE, PCIEPHY0_CFG, 0); -+ reg_value = pcie_r32(PCIEPHY0_CFG); -+ -+ if (reg_value & BUSY) -+ mdelay(100); -+ else -+ break; -+ if (retry++ > WAITRETRY_MAX){ -+ printk("PCIE-PHY retry failed.\n"); -+ return -1; -+ } -+ } -+ return 0; -+} -+ -+static void pcie_phy(unsigned long addr, unsigned long val) -+{ -+ wait_pciephy_busy(); -+ pcie_w32(WRITE_MODE | (val << DATA_SHIFT) | (addr << ADDR_SHIFT), PCIEPHY0_CFG); -+ mdelay(1); -+ wait_pciephy_busy(); -+} -+ -+static int pci_config_read(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 * val) -+{ -+ unsigned int slot = PCI_SLOT(devfn); -+ u8 func = PCI_FUNC(devfn); -+ u32 address; -+ u32 data; -+ -+ address = (((where & 0xF00) >> 8) << 24) | (bus->number << 16) | (slot << 11) | (func << 8) | (where & 0xfc) | 0x80000000; -+ bridge_w32(address, RALINK_PCI_CONFIG_ADDR); -+ data = bridge_r32(RALINK_PCI_CONFIG_DATA_VIRTUAL_REG); -+ -+ switch (size) { -+ case 1: -+ *val = (data >> ((where & 3) << 3)) & 0xff; -+ break; -+ case 2: -+ *val = (data >> ((where & 3) << 3)) & 0xffff; -+ break; -+ case 4: -+ *val = data; -+ break; -+ } -+ -+ return PCIBIOS_SUCCESSFUL; -+} -+ -+static int pci_config_write(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 val) -+{ -+ unsigned int slot = PCI_SLOT(devfn); -+ u8 func = PCI_FUNC(devfn); -+ u32 address; -+ u32 data; -+ -+ address = (((where & 0xF00) >> 8) << 24) | (bus->number << 16) | (slot << 11) | (func << 8) | (where & 0xfc) | 0x80000000; -+ bridge_w32(address, RALINK_PCI_CONFIG_ADDR); -+ data = bridge_r32(RALINK_PCI_CONFIG_DATA_VIRTUAL_REG); -+ -+ switch (size) { -+ case 1: -+ data = (data & ~(0xff << ((where & 3) << 3))) | -+ (val << ((where & 3) << 3)); -+ break; -+ case 2: -+ data = (data & ~(0xffff << ((where & 3) << 3))) | -+ (val << ((where & 3) << 3)); -+ break; -+ case 4: -+ data = val; -+ break; -+ } -+ -+ bridge_w32(data, RALINK_PCI_CONFIG_DATA_VIRTUAL_REG); -+ -+ return PCIBIOS_SUCCESSFUL; -+} -+ -+struct pci_ops mt7620a_pci_ops= { -+ .read = pci_config_read, -+ .write = pci_config_write, -+}; -+ -+static struct resource mt7620a_res_pci_mem1 = { -+ .name = "pci memory", -+ .start = RALINK_PCI_MM_MAP_BASE, -+ .end = (u32) ((RALINK_PCI_MM_MAP_BASE + (unsigned char *)0x0fffffff)), -+ .flags = IORESOURCE_MEM, -+}; -+static struct resource mt7620a_res_pci_io1 = { -+ .name = "pci io", -+ .start = RALINK_PCI_IO_MAP_BASE, -+ .end = (u32) ((RALINK_PCI_IO_MAP_BASE + (unsigned char *)0x0ffff)), -+ .flags = IORESOURCE_IO, -+}; -+ -+struct pci_controller mt7620a_controller = { -+ .pci_ops = &mt7620a_pci_ops, -+ .mem_resource = &mt7620a_res_pci_mem1, -+ .io_resource = &mt7620a_res_pci_io1, -+ .mem_offset = 0x00000000UL, -+ .io_offset = 0x00000000UL, -+ .io_map_base = 0xa0000000, -+}; -+ -+static int mt7620a_pci_probe(struct platform_device *pdev) -+{ -+ struct resource *bridge_res = platform_get_resource(pdev, IORESOURCE_MEM, 0); -+ struct resource *pcie_res = platform_get_resource(pdev, IORESOURCE_MEM, 1); -+ -+ rstpcie0 = devm_reset_control_get(&pdev->dev, "pcie0"); -+ if (IS_ERR(rstpcie0)) -+ return PTR_ERR(rstpcie0); -+ -+ bridge_base = devm_request_and_ioremap(&pdev->dev, bridge_res); -+ if (!bridge_base) -+ return -ENOMEM; -+ -+ pcie_base = devm_request_and_ioremap(&pdev->dev, pcie_res); -+ if (!pcie_base) -+ return -ENOMEM; -+ -+ iomem_resource.start = 0; -+ iomem_resource.end= ~0; -+ ioport_resource.start= 0; -+ ioport_resource.end = ~0; -+ -+ /* PCIE: bypass PCIe DLL */ -+ pcie_phy(0x0, 0x80); -+ pcie_phy(0x1, 0x04); -+ /* PCIE: Elastic buffer control */ -+ pcie_phy(0x68, 0xB4); -+ -+ reset_control_assert(rstpcie0); -+ rt_sysc_m32(RALINK_PCIE0_CLK_EN, 0, RALINK_CLKCFG1); -+ rt_sysc_m32(1<<19, 1<<31, PPLL_DRV); -+ rt_sysc_m32(0x3 << 16, 0, RALINK_GPIOMODE); -+ -+ reset_control_deassert(rstpcie0); -+ rt_sysc_m32(0, RALINK_PCIE0_CLK_EN, RALINK_CLKCFG1); -+ -+ mdelay(100); -+ -+ if (!(rt_sysc_r32(PPLL_CFG1) & 1<<23)) { -+ printk("MT7620 PPLL unlock\n"); -+ reset_control_assert(rstpcie0); -+ rt_sysc_m32(BIT(26), 0, RALINK_CLKCFG1); -+ return 0; -+ } -+ rt_sysc_m32((0x1<<18) | (0x1<<17), (0x1 << 19) | (0x1 << 31), PPLL_DRV); -+ -+ mdelay(100); -+ reset_control_assert(rstpcie0); -+ rt_sysc_m32(0x30, 2 << 4, RALINK_SYSCFG1); -+ -+ rt_sysc_m32(~0x7fffffff, 0x80000000, RALINK_PCIE_CLK_GEN); -+ rt_sysc_m32(~0x80ffffff, 0xa << 24, RALINK_PCIE_CLK_GEN1); -+ -+ mdelay(50); -+ reset_control_deassert(rstpcie0); -+ pcie_m32(BIT(1), 0, RALINK_PCI_PCICFG_ADDR); -+ mdelay(100); -+ -+ if (( pcie_r32(RALINK_PCI0_STATUS) & 0x1) == 0) { -+ reset_control_assert(rstpcie0); -+ rt_sysc_m32(RALINK_PCIE0_CLK_EN, 0, RALINK_CLKCFG1); -+ rt_sysc_m32(LC_CKDRVPD_, PDRV_SW_SET, PPLL_DRV); -+ printk("PCIE0 no card, disable it(RST&CLK)\n"); -+ } -+ -+ bridge_w32(0xffffffff, RALINK_PCI_MEMBASE); -+ bridge_w32(RALINK_PCI_IO_MAP_BASE, RALINK_PCI_IOBASE); -+ -+ pcie_w32(0x7FFF0000, RALINK_PCI0_BAR0SETUP_ADDR); -+ pcie_w32(MEMORY_BASE, RALINK_PCI0_IMBASEBAR0_ADDR); -+ pcie_w32(0x08021814, RALINK_PCI0_ID); -+ pcie_w32(0x06040001, RALINK_PCI0_CLASS); -+ pcie_w32(0x28801814, RALINK_PCI0_SUBID); -+ pcie_m32(0, BIT(20), RALINK_PCI_PCIMSK_ADDR); -+ -+ register_pci_controller(&mt7620a_controller); -+ -+ return 0; -+} -+ -+int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) -+{ -+ const struct resource *res; -+ u16 cmd; -+ u32 val; -+ int i, irq = 0; -+ -+ if ((dev->bus->number == 0) && (slot == 0)) { -+ pcie_w32(0x7FFF0001, RALINK_PCI0_BAR0SETUP_ADDR); //open 7FFF:2G; ENABLE -+ pci_config_write(dev->bus, 0, PCI_BASE_ADDRESS_0, 4, MEMORY_BASE); -+ pci_config_read(dev->bus, 0, PCI_BASE_ADDRESS_0, 4, &val); -+ } else if ((dev->bus->number == 1) && (slot == 0x0)) { -+ irq = RALINK_INT_PCIE0; -+ } else { -+ printk("bus=0x%x, slot = 0x%x\n", dev->bus->number, slot); -+ return 0; -+ } -+ -+ for (i = 0; i < 6; i++) { -+ res = &dev->resource[i]; -+ } -+ -+ 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); -+ -+ // FIXME -+ 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, dev->irq); -+ //pci_write_config_byte(dev, PCI_INTERRUPT_PIN, dev->irq); -+ -+ return irq; -+} -+ -+int pcibios_plat_dev_init(struct pci_dev *dev) -+{ -+ return 0; -+} -+ -+static const struct of_device_id mt7620a_pci_ids[] = { -+ { .compatible = "ralink,mt7620a-pci" }, -+ {}, -+}; -+MODULE_DEVICE_TABLE(of, mt7620a_pci_ids); -+ -+static struct platform_driver mt7620a_pci_driver = { -+ .probe = mt7620a_pci_probe, -+ .driver = { -+ .name = "mt7620a-pci", -+ .owner = THIS_MODULE, -+ .of_match_table = of_match_ptr(mt7620a_pci_ids), -+ }, -+}; -+ -+static int __init mt7620a_pci_init(void) -+{ -+ return platform_driver_register(&mt7620a_pci_driver); -+} -+ -+arch_initcall(mt7620a_pci_init); ---- a/arch/mips/ralink/Kconfig -+++ b/arch/mips/ralink/Kconfig -@@ -24,6 +24,7 @@ choice - - config SOC_MT7620 - bool "MT7620" -+ select HW_HAS_PCI - - endchoice - |