From 3d8553f0a3eea4a0b9b2f6b3ce247fee9c4232f2 Mon Sep 17 00:00:00 2001 From: Hou Zhiqiang Date: Fri, 3 Mar 2017 12:35:09 +0800 Subject: [PATCH 1/1] pci: layerscape: add LS2088A series SoC pcie support The LS2088A series SoCs has different physical memory map address and CCSR registers address against LS2080A series SoCs. Signed-off-by: Hou Zhiqiang Reviewed-by: York Sun --- arch/arm/cpu/armv8/fsl-layerscape/cpu.c | 46 +++++++++++++++++++++++++++++++++ drivers/pci/pcie_layerscape.c | 35 +++++++++++++++++++++++++ drivers/pci/pcie_layerscape.h | 8 ++++++ 3 files changed, 89 insertions(+) diff --git a/arch/arm/cpu/armv8/fsl-layerscape/cpu.c b/arch/arm/cpu/armv8/fsl-layerscape/cpu.c index 78e250c..cebbb0f 100644 --- a/arch/arm/cpu/armv8/fsl-layerscape/cpu.c +++ b/arch/arm/cpu/armv8/fsl-layerscape/cpu.c @@ -89,6 +89,49 @@ static inline void early_mmu_setup(void) set_sctlr(get_sctlr() | CR_M); } +static void fix_pcie_mmu_map(void) +{ +#ifdef CONFIG_LS2080A + unsigned int i; + u32 svr, ver; + struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR); + + svr = gur_in32(&gur->svr); + ver = SVR_SOC_VER(svr); + + /* Fix PCIE base and size for LS2088A */ + if ((ver == SVR_LS2088A) || (ver == SVR_LS2084A) || + (ver == SVR_LS2048A) || (ver == SVR_LS2044A)) { + for (i = 0; i < ARRAY_SIZE(final_map); i++) { + switch (final_map[i].phys) { + case CONFIG_SYS_PCIE1_PHYS_ADDR: + final_map[i].phys = 0x2000000000ULL; + final_map[i].virt = 0x2000000000ULL; + final_map[i].size = 0x800000000ULL; + break; + case CONFIG_SYS_PCIE2_PHYS_ADDR: + final_map[i].phys = 0x2800000000ULL; + final_map[i].virt = 0x2800000000ULL; + final_map[i].size = 0x800000000ULL; + break; + case CONFIG_SYS_PCIE3_PHYS_ADDR: + final_map[i].phys = 0x3000000000ULL; + final_map[i].virt = 0x3000000000ULL; + final_map[i].size = 0x800000000ULL; + break; + case CONFIG_SYS_PCIE4_PHYS_ADDR: + final_map[i].phys = 0x3800000000ULL; + final_map[i].virt = 0x3800000000ULL; + final_map[i].size = 0x800000000ULL; + break; + default: + break; + } + } + } +#endif +} + /* * The final tables look similar to early tables, but different in detail. * These tables are in DRAM. Sub tables are added to enable cache for @@ -103,6 +146,9 @@ static inline void final_mmu_setup(void) unsigned int el = current_el(); int index; + /* fix the final_map before filling in the block entries */ + fix_pcie_mmu_map(); + mem_map = final_map; /* Update mapping for DDR to actual size */ diff --git a/drivers/pci/pcie_layerscape.c b/drivers/pci/pcie_layerscape.c index 47dd806..1c5a33a 100644 --- a/drivers/pci/pcie_layerscape.c +++ b/drivers/pci/pcie_layerscape.c @@ -167,6 +167,27 @@ static void ls_pcie_setup_atu(struct ls_pcie *pcie) pci_get_regions(pcie->bus, &io, &mem, &pref); idx = PCIE_ATU_REGION_INDEX1 + 1; + /* Fix the pcie memory map for LS2088A series SoCs */ + svr = (svr >> SVR_VAR_PER_SHIFT) & 0xFFFFFE; + if (svr == SVR_LS2088A || svr == SVR_LS2084A || + svr == SVR_LS2048A || svr == SVR_LS2044A) { + if (io) + io->phys_start = (io->phys_start & + (PCIE_PHYS_SIZE - 1)) + + LS2088A_PCIE1_PHYS_ADDR + + LS2088A_PCIE_PHYS_SIZE * pcie->idx; + if (mem) + mem->phys_start = (mem->phys_start & + (PCIE_PHYS_SIZE - 1)) + + LS2088A_PCIE1_PHYS_ADDR + + LS2088A_PCIE_PHYS_SIZE * pcie->idx; + if (pref) + pref->phys_start = (pref->phys_start & + (PCIE_PHYS_SIZE - 1)) + + LS2088A_PCIE1_PHYS_ADDR + + LS2088A_PCIE_PHYS_SIZE * pcie->idx; + } + if (io) /* ATU : OUTBOUND : IO */ ls_pcie_atu_outbound_set(pcie, idx++, @@ -449,6 +470,7 @@ static int ls_pcie_probe(struct udevice *dev) u8 header_type; u16 link_sta; bool ep_mode; + uint svr; int ret; pcie->bus = dev; @@ -502,6 +524,19 @@ static int ls_pcie_probe(struct udevice *dev) return ret; } + /* + * Fix the pcie memory map address and PF control registers address + * for LS2088A series SoCs + */ + svr = get_svr(); + svr = (svr >> SVR_VAR_PER_SHIFT) & 0xFFFFFE; + if (svr == SVR_LS2088A || svr == SVR_LS2084A || + svr == SVR_LS2048A || svr == SVR_LS2044A) { + pcie->cfg_res.start = LS2088A_PCIE1_PHYS_ADDR + + LS2088A_PCIE_PHYS_SIZE * pcie->idx; + pcie->ctrl = pcie->lut + 0x40000; + } + pcie->cfg0 = map_physmem(pcie->cfg_res.start, fdt_resource_size(&pcie->cfg_res), MAP_NOCACHE); diff --git a/drivers/pci/pcie_layerscape.h b/drivers/pci/pcie_layerscape.h index 0f9d2fe6..e3324a5 100644 --- a/drivers/pci/pcie_layerscape.h +++ b/drivers/pci/pcie_layerscape.h @@ -26,6 +26,10 @@ #define CONFIG_SYS_PCI_EP_MEMORY_BASE CONFIG_SYS_LOAD_ADDR #endif +#define PCIE_PHYS_SIZE 0x200000000 +#define LS2088A_PCIE_PHYS_SIZE 0x800000000 +#define LS2088A_PCIE1_PHYS_ADDR 0x2000000000 + /* iATU registers */ #define PCIE_ATU_VIEWPORT 0x900 #define PCIE_ATU_REGION_INBOUND (0x1 << 31) @@ -109,6 +113,10 @@ #define SVR_LS102XA 0 #define SVR_VAR_PER_SHIFT 8 #define SVR_LS102XA_MASK 0x700 +#define SVR_LS2088A 0x870900 +#define SVR_LS2084A 0x870910 +#define SVR_LS2048A 0x870920 +#define SVR_LS2044A 0x870930 /* LS1021a PCIE space */ #define LS1021_PCIE_SPACE_OFFSET 0x4000000000ULL -- 2.7.4