diff options
Diffstat (limited to 'target/linux/brcm63xx/patches-3.18/343-MIPS-BCM63XX-add-PCIe-support-for-BCM6318.patch')
| -rw-r--r-- | target/linux/brcm63xx/patches-3.18/343-MIPS-BCM63XX-add-PCIe-support-for-BCM6318.patch | 342 |
1 files changed, 342 insertions, 0 deletions
diff --git a/target/linux/brcm63xx/patches-3.18/343-MIPS-BCM63XX-add-PCIe-support-for-BCM6318.patch b/target/linux/brcm63xx/patches-3.18/343-MIPS-BCM63XX-add-PCIe-support-for-BCM6318.patch new file mode 100644 index 0000000..3ac08b4 --- /dev/null +++ b/target/linux/brcm63xx/patches-3.18/343-MIPS-BCM63XX-add-PCIe-support-for-BCM6318.patch @@ -0,0 +1,342 @@ +From 11a8ab8dac4ef5d0d70199843043927edce1d4db Mon Sep 17 00:00:00 2001 +From: Jonas Gorski <jogo@openwrt.org> +Date: Sun, 15 Dec 2013 20:47:34 +0100 +Subject: [PATCH 53/53] MIPS: BCM63XX: add PCIe support for BCM6318 + +--- + arch/mips/bcm63xx/clk.c | 25 ++++- + arch/mips/include/asm/mach-bcm63xx/bcm63xx_io.h | 6 ++ + arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h | 60 +++++++++++- + arch/mips/pci/ops-bcm63xx.c | 16 +++- + arch/mips/pci/pci-bcm63xx.c | 106 ++++++++++++++++++---- + 5 files changed, 184 insertions(+), 29 deletions(-) + +--- a/arch/mips/bcm63xx/clk.c ++++ b/arch/mips/bcm63xx/clk.c +@@ -50,6 +50,18 @@ static void bcm_hwclock_set(u32 mask, in + bcm_perf_writel(reg, PERF_CKCTL_REG); + } + ++static void bcm_ub_hwclock_set(u32 mask, int enable) ++{ ++ u32 reg; ++ ++ reg = bcm_perf_readl(PERF_UB_CKCTL_REG); ++ if (enable) ++ reg |= mask; ++ else ++ reg &= ~mask; ++ bcm_perf_writel(reg, PERF_UB_CKCTL_REG); ++} ++ + /* + * Ethernet MAC "misc" clock: dma clocks and main clock on 6348 + */ +@@ -317,12 +329,17 @@ static struct clk clk_ipsec = { + + static void pcie_set(struct clk *clk, int enable) + { +- if (BCMCPU_IS_6328()) ++ if (BCMCPU_IS_6318()) { ++ bcm_hwclock_set(CKCTL_6318_PCIE_EN, enable); ++ bcm_hwclock_set(CKCTL_6318_PCIE25_EN, enable); ++ bcm_ub_hwclock_set(UB_CKCTL_6318_PCIE_EN, enable); ++ } else if (BCMCPU_IS_6328()) { + bcm_hwclock_set(CKCTL_6328_PCIE_EN, enable); +- else if (BCMCPU_IS_6362()) ++ } else if (BCMCPU_IS_6362()) { + bcm_hwclock_set(CKCTL_6362_PCIE_EN, enable); +- else if (BCMCPU_IS_63268()) ++ } else if (BCMCPU_IS_63268()) { + bcm_hwclock_set(CKCTL_63268_PCIE_EN, enable); ++ } + } + + static struct clk clk_pcie = { +@@ -405,7 +422,7 @@ struct clk *clk_get(struct device *dev, + if ((BCMCPU_IS_6362() || BCMCPU_IS_6368() || BCMCPU_IS_63268()) && + !strcmp(id, "ipsec")) + return &clk_ipsec; +- if ((BCMCPU_IS_6328() || BCMCPU_IS_6362() || BCMCPU_IS_63268()) && ++ if ((BCMCPU_IS_6318() || BCMCPU_IS_6328() || BCMCPU_IS_6362() || BCMCPU_IS_63268()) && + !strcmp(id, "pcie")) + return &clk_pcie; + return ERR_PTR(-ENOENT); +--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_io.h ++++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_io.h +@@ -40,6 +40,12 @@ + #define BCM_CB_MEM_END_PA (BCM_CB_MEM_BASE_PA + \ + BCM_CB_MEM_SIZE - 1) + ++#define BCM_PCIE_MEM_BASE_PA_6318 0x10200000 ++#define BCM_PCIE_MEM_SIZE_6318 (1 * 1024 * 1024) ++#define BCM_PCIE_MEM_END_PA_6318 (BCM_PCIE_MEM_BASE_PA_6318 + \ ++ BCM_PCIE_MEM_SIZE_6318 - 1) ++ ++ + #define BCM_PCIE_MEM_BASE_PA_6328 0x10f00000 + #define BCM_PCIE_MEM_SIZE_6328 (1 * 1024 * 1024) + #define BCM_PCIE_MEM_END_PA_6328 (BCM_PCIE_MEM_BASE_PA_6328 + \ +--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h ++++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h +@@ -1543,6 +1543,17 @@ + * _REG relative to RSET_PCIE + *************************************************************************/ + ++#define PCIE_SPECIFIC_REG 0x188 ++#define SPECIFIC_ENDIAN_MODE_BAR1_SHIFT 0 ++#define SPECIFIC_ENDIAN_MODE_BAR1_MASK (0x3 << SPECIFIC_ENDIAN_MODE_BAR1_SHIFT) ++#define SPECIFIC_ENDIAN_MODE_BAR2_SHIFT 2 ++#define SPECIFIC_ENDIAN_MODE_BAR2_MASK (0x3 << SPECIFIC_ENDIAN_MODE_BAR1_SHIFT) ++#define SPECIFIC_ENDIAN_MODE_BAR3_SHIFT 4 ++#define SPECIFIC_ENDIAN_MODE_BAR3_MASK (0x3 << SPECIFIC_ENDIAN_MODE_BAR1_SHIFT) ++#define SPECIFIC_ENDIAN_MODE_WORD_ALIGN 0 ++#define SPECIFIC_ENDIAN_MODE_HALFWORD_ALIGN 1 ++#define SPECIFIC_ENDIAN_MODE_BYTE_ALIGN 2 ++ + #define PCIE_CONFIG2_REG 0x408 + #define CONFIG2_BAR1_SIZE_EN 1 + #define CONFIG2_BAR1_SIZE_MASK 0xf +@@ -1588,7 +1599,54 @@ + #define PCIE_RC_INT_C (1 << 2) + #define PCIE_RC_INT_D (1 << 3) + +-#define PCIE_DEVICE_OFFSET 0x8000 ++#define PCIE_CPU_2_PCIE_MEM_WIN0_LO_REG 0x400c ++#define C2P_MEM_WIN_ENDIAN_MODE_MASK 0x3 ++#define C2P_MEM_WIN_ENDIAN_NO_SWAP 0 ++#define C2P_MEM_WIN_ENDIAN_HALF_WORD_SWAP 1 ++#define C2P_MEM_WIN_ENDIAN_HALF_BYTE_SWAP 2 ++#define C2P_MEM_WIN_BASE_ADDR_SHIFT 20 ++#define C2P_MEM_WIN_BASE_ADDR_MASK (0xfff << C2P_MEM_WIN_BASE_ADDR_SHIFT) ++ ++#define PCIE_RC_BAR1_CONFIG_LO_REG 0x402c ++#define RC_BAR_CFG_LO_SIZE_256MB 0xd ++#define RC_BAR_CFG_LO_MATCH_ADDR_SHIFT 20 ++#define RC_BAR_CFG_LO_MATCH_ADDR_MASK (0xfff << RC_BAR_CFG_LO_MATCH_ADDR_SHIFT) ++ ++#define PCIE_CPU_2_PCIE_MEM_WIN0_BASELIMIT_REG 0x4070 ++#define C2P_BASELIMIT_LIMIT_SHIFT 20 ++#define C2P_BASELIMIT_LIMIT_MASK (0xfff << C2P_BASELIMIT_LIMIT_SHIFT) ++#define C2P_BASELIMIT_BASE_SHIFT 4 ++#define C2P_BASELIMIT_BASE_MASK (0xfff << C2P_BASELIMIT_BASE_SHIFT) ++ ++#define PCIE_UBUS_BAR1_CFG_REMAP_REG 0x4088 ++#define BAR1_CFG_REMAP_OFFSET_SHIFT 20 ++#define BAR1_CFG_REMAP_OFFSET_MASK (0xfff << BAR1_CFG_REMAP_OFFSET_SHIFT) ++#define BAR1_CFG_REMAP_ACCESS_EN 1 ++ ++#define PCIE_HARD_DEBUG_REG 0x4204 ++#define HARD_DEBUG_SERDES_IDDQ (1 << 23) ++ ++#define PCIE_CPU_INT1_MASK_CLEAR_REG 0x830c ++#define CPU_INT_PCIE_ERR_ATTN_CPU (1 << 0) ++#define CPU_INT_PCIE_INTA (1 << 1) ++#define CPU_INT_PCIE_INTB (1 << 2) ++#define CPU_INT_PCIE_INTC (1 << 3) ++#define CPU_INT_PCIE_INTD (1 << 4) ++#define CPU_INT_PCIE_INTR (1 << 5) ++#define CPU_INT_PCIE_NMI (1 << 6) ++#define CPU_INT_PCIE_UBUS (1 << 7) ++#define CPU_INT_IPI (1 << 8) ++ ++#define PCIE_EXT_CFG_INDEX_REG 0x8400 ++#define EXT_CFG_FUNC_NUM_SHIFT 12 ++#define EXT_CFG_FUNC_NUM_MASK (0x7 << EXT_CFG_FUNC_NUM_SHIFT) ++#define EXT_CFG_DEV_NUM_SHIFT 15 ++#define EXT_CFG_DEV_NUM_MASK (0xf << EXT_CFG_DEV_NUM_SHIFT) ++#define EXT_CFG_BUS_NUM_SHIFT 20 ++#define EXT_CFG_BUS_NUM_MASK (0xff << EXT_CFG_BUS_NUM_SHIFT) ++ ++#define PCIE_DEVICE_OFFSET_6318 0x9000 ++#define PCIE_DEVICE_OFFSET_6328 0x8000 + + /************************************************************************* + * _REG relative to RSET_OTP +--- a/arch/mips/pci/ops-bcm63xx.c ++++ b/arch/mips/pci/ops-bcm63xx.c +@@ -488,8 +488,12 @@ static int bcm63xx_pcie_read(struct pci_ + if (!bcm63xx_pcie_can_access(bus, devfn)) + return PCIBIOS_DEVICE_NOT_FOUND; + +- if (bus->number == PCIE_BUS_DEVICE) +- reg += PCIE_DEVICE_OFFSET; ++ if (bus->number == PCIE_BUS_DEVICE) { ++ if (BCMCPU_IS_6318()) ++ reg += PCIE_DEVICE_OFFSET_6318; ++ else ++ reg += PCIE_DEVICE_OFFSET_6328; ++ } + + data = bcm_pcie_readl(reg); + +@@ -508,8 +512,12 @@ static int bcm63xx_pcie_write(struct pci + if (!bcm63xx_pcie_can_access(bus, devfn)) + return PCIBIOS_DEVICE_NOT_FOUND; + +- if (bus->number == PCIE_BUS_DEVICE) +- reg += PCIE_DEVICE_OFFSET; ++ if (bus->number == PCIE_BUS_DEVICE) { ++ if (BCMCPU_IS_6318()) ++ reg += PCIE_DEVICE_OFFSET_6318; ++ else ++ reg += PCIE_DEVICE_OFFSET_6328; ++ } + + + data = bcm_pcie_readl(reg); +--- a/arch/mips/pci/pci-bcm63xx.c ++++ b/arch/mips/pci/pci-bcm63xx.c +@@ -118,7 +118,7 @@ static void bcm63xx_int_cfg_writel(u32 v + + void __iomem *pci_iospace_start; + +-static void __init bcm63xx_reset_pcie(void) ++static void __init bcm63xx_reset_pcie_gen1(void) + { + u32 val; + u32 reg; +@@ -152,20 +152,32 @@ static void __init bcm63xx_reset_pcie(vo + mdelay(200); + } + +-static struct clk *pcie_clk; +- +-static int __init bcm63xx_register_pcie(void) ++static void __init bcm63xx_reset_pcie_gen2(void) + { + u32 val; + +- /* enable clock */ +- pcie_clk = clk_get(NULL, "pcie"); +- if (IS_ERR_OR_NULL(pcie_clk)) +- return -ENODEV; ++ bcm63xx_core_set_reset(BCM63XX_RESET_PCIE_HARD, 0); + +- clk_prepare_enable(pcie_clk); ++ /* reset the PCIe core */ ++ bcm63xx_core_set_reset(BCM63XX_RESET_PCIE, 1); ++ bcm63xx_core_set_reset(BCM63XX_RESET_PCIE_EXT, 1); ++ bcm63xx_core_set_reset(BCM63XX_RESET_PCIE_CORE, 1); ++ mdelay(10); ++ bcm63xx_core_set_reset(BCM63XX_RESET_PCIE_EXT, 0); ++ mdelay(10); ++ bcm63xx_core_set_reset(BCM63XX_RESET_PCIE, 0); ++ mdelay(10); ++ val = bcm_pcie_readl(PCIE_HARD_DEBUG_REG); ++ val &= ~HARD_DEBUG_SERDES_IDDQ; ++ bcm_pcie_writel(val, PCIE_HARD_DEBUG_REG); ++ mdelay(10); ++ bcm63xx_core_set_reset(BCM63XX_RESET_PCIE_CORE, 0); ++ mdelay(200); ++} + +- bcm63xx_reset_pcie(); ++static void __init bcm63xx_init_pcie_gen1(void) ++{ ++ u32 val; + + /* configure the PCIe bridge */ + val = bcm_pcie_readl(PCIE_BRIDGE_OPT1_REG); +@@ -190,6 +202,65 @@ static int __init bcm63xx_register_pcie( + val |= OPT2_CFG_TYPE1_BD_SEL; + bcm_pcie_writel(val, PCIE_BRIDGE_OPT2_REG); + ++ /* set bar0 to little endian */ ++ val = (bcm_pcie_mem_resource.start >> 20) << BASEMASK_BASE_SHIFT; ++ val |= (bcm_pcie_mem_resource.end >> 20) << BASEMASK_MASK_SHIFT; ++ val |= BASEMASK_REMAP_EN; ++ bcm_pcie_writel(val, PCIE_BRIDGE_BAR0_BASEMASK_REG); ++ ++ val = (bcm_pcie_mem_resource.start >> 20) << REBASE_ADDR_BASE_SHIFT; ++ bcm_pcie_writel(val, PCIE_BRIDGE_BAR0_REBASE_ADDR_REG); ++} ++ ++static void __init bcm63xx_init_pcie_gen2(void) ++{ ++ u32 val; ++ ++ bcm_pcie_writel(CPU_INT_PCIE_INTA | CPU_INT_PCIE_INTB | ++ CPU_INT_PCIE_INTC | CPU_INT_PCIE_INTD, ++ PCIE_CPU_INT1_MASK_CLEAR_REG); ++ ++ val = bcm_pcie_mem_resource.end & C2P_BASELIMIT_LIMIT_MASK; ++ val |= (bcm_pcie_mem_resource.start >> C2P_BASELIMIT_LIMIT_SHIFT) << ++ C2P_BASELIMIT_BASE_SHIFT; ++ ++ bcm_pcie_writel(val, PCIE_CPU_2_PCIE_MEM_WIN0_BASELIMIT_REG); ++ ++ /* set bar0 to little endian */ ++ val = bcm_pcie_readl(PCIE_CPU_2_PCIE_MEM_WIN0_LO_REG); ++ val |= bcm_pcie_mem_resource.start & C2P_MEM_WIN_BASE_ADDR_MASK; ++ val |= C2P_MEM_WIN_ENDIAN_HALF_BYTE_SWAP; ++ bcm_pcie_writel(val, PCIE_CPU_2_PCIE_MEM_WIN0_LO_REG); ++ ++ bcm_pcie_writel(SPECIFIC_ENDIAN_MODE_BYTE_ALIGN, PCIE_SPECIFIC_REG); ++ bcm_pcie_writel(RC_BAR_CFG_LO_SIZE_256MB, PCIE_RC_BAR1_CONFIG_LO_REG); ++ bcm_pcie_writel(BAR1_CFG_REMAP_ACCESS_EN, PCIE_UBUS_BAR1_CFG_REMAP_REG); ++ ++ bcm_pcie_writel(PCIE_BUS_DEVICE << EXT_CFG_BUS_NUM_SHIFT, ++ PCIE_EXT_CFG_INDEX_REG); ++} ++ ++static struct clk *pcie_clk; ++ ++static int __init bcm63xx_register_pcie(void) ++{ ++ u32 val; ++ ++ /* enable clock */ ++ pcie_clk = clk_get(NULL, "pcie"); ++ if (IS_ERR_OR_NULL(pcie_clk)) ++ return -ENODEV; ++ ++ clk_prepare_enable(pcie_clk); ++ ++ if (BCMCPU_IS_6328() || BCMCPU_IS_6362() || BCMCPU_IS_63268()) { ++ bcm63xx_reset_pcie_gen1(); ++ bcm63xx_init_pcie_gen1(); ++ } else { ++ bcm63xx_reset_pcie_gen2(); ++ bcm63xx_init_pcie_gen2(); ++ } ++ + /* setup class code as bridge */ + val = bcm_pcie_readl(PCIE_IDVAL3_REG); + val &= ~IDVAL3_CLASS_CODE_MASK; +@@ -201,15 +272,6 @@ static int __init bcm63xx_register_pcie( + val &= ~CONFIG2_BAR1_SIZE_MASK; + bcm_pcie_writel(val, PCIE_CONFIG2_REG); + +- /* set bar0 to little endian */ +- val = (bcm_pcie_mem_resource.start >> 20) << BASEMASK_BASE_SHIFT; +- val |= (bcm_pcie_mem_resource.end >> 20) << BASEMASK_MASK_SHIFT; +- val |= BASEMASK_REMAP_EN; +- bcm_pcie_writel(val, PCIE_BRIDGE_BAR0_BASEMASK_REG); +- +- val = (bcm_pcie_mem_resource.start >> 20) << REBASE_ADDR_BASE_SHIFT; +- bcm_pcie_writel(val, PCIE_BRIDGE_BAR0_REBASE_ADDR_REG); +- + register_pci_controller(&bcm63xx_pcie_controller); + + return 0; +@@ -341,7 +403,10 @@ static int __init bcm63xx_pci_init(void) + if (!bcm63xx_pci_enabled) + return -ENODEV; + +- if (BCMCPU_IS_6328() || BCMCPU_IS_6362()) { ++ if (BCMCPU_IS_6318()) { ++ bcm_pcie_mem_resource.start = BCM_PCIE_MEM_BASE_PA_6318; ++ bcm_pcie_mem_resource.end = BCM_PCIE_MEM_END_PA_6318; ++ } if (BCMCPU_IS_6328() || BCMCPU_IS_6362()) { + bcm_pcie_mem_resource.start = BCM_PCIE_MEM_BASE_PA_6328; + bcm_pcie_mem_resource.end = BCM_PCIE_MEM_END_PA_6328; + } else if (BCMCPU_IS_63268()) { +@@ -350,6 +415,7 @@ static int __init bcm63xx_pci_init(void) + } + + switch (bcm63xx_get_cpu_id()) { ++ case BCM6318_CPU_ID: + case BCM6328_CPU_ID: + case BCM6362_CPU_ID: + case BCM63268_CPU_ID: |