diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mach-dove/addr-map.c | 113 | ||||
| -rw-r--r-- | arch/arm/mach-kirkwood/addr-map.c | 138 | ||||
| -rw-r--r-- | arch/arm/mach-mv78xx0/addr-map.c | 102 | ||||
| -rw-r--r-- | arch/arm/mach-orion5x/addr-map.c | 146 | ||||
| -rw-r--r-- | arch/arm/mach-orion5x/common.c | 7 | ||||
| -rw-r--r-- | arch/arm/mach-orion5x/common.h | 2 | ||||
| -rw-r--r-- | arch/arm/mach-orion5x/include/mach/orion5x.h | 2 | ||||
| -rw-r--r-- | arch/arm/plat-orion/Makefile | 2 | ||||
| -rw-r--r-- | arch/arm/plat-orion/addr-map.c | 166 | ||||
| -rw-r--r-- | arch/arm/plat-orion/include/plat/addr-map.h | 52 |
10 files changed, 375 insertions, 355 deletions
diff --git a/arch/arm/mach-dove/addr-map.c b/arch/arm/mach-dove/addr-map.c index 00be4fc26dd..1584726088e 100644 --- a/arch/arm/mach-dove/addr-map.c +++ b/arch/arm/mach-dove/addr-map.c @@ -14,6 +14,7 @@ #include <linux/io.h> #include <asm/mach/arch.h> #include <asm/setup.h> +#include <plat/addr-map.h> #include "common.h" /* @@ -34,14 +35,6 @@ #define ATTR_PCIE_MEM 0xe8 #define ATTR_SCRATCHPAD 0x0 -/* - * CPU Address Decode Windows registers - */ -#define WIN_CTRL(n) (BRIDGE_VIRT_BASE + ((n) << 4) + 0x0) -#define WIN_BASE(n) (BRIDGE_VIRT_BASE + ((n) << 4) + 0x4) -#define WIN_REMAP_LO(n) (BRIDGE_VIRT_BASE + ((n) << 4) + 0x8) -#define WIN_REMAP_HI(n) (BRIDGE_VIRT_BASE + ((n) << 4) + 0xc) - struct mbus_dram_target_info dove_mbus_dram_info; static inline void __iomem *ddr_map_sc(int i) @@ -49,78 +42,62 @@ static inline void __iomem *ddr_map_sc(int i) return (void __iomem *)(DOVE_MC_VIRT_BASE + 0x100 + ((i) << 4)); } -static int cpu_win_can_remap(int win) -{ - if (win < 4) - return 1; - - return 0; -} - -static void __init setup_cpu_win(int win, u32 base, u32 size, - u8 target, u8 attr, int remap) -{ - u32 ctrl; - - base &= 0xffff0000; - ctrl = ((size - 1) & 0xffff0000) | (attr << 8) | (target << 4) | 1; - - writel(base, WIN_BASE(win)); - writel(ctrl, WIN_CTRL(win)); - if (cpu_win_can_remap(win)) { - if (remap < 0) - remap = base; - writel(remap & 0xffff0000, WIN_REMAP_LO(win)); - writel(0, WIN_REMAP_HI(win)); - } -} - -void __init dove_setup_cpu_mbus(void) -{ - int i; - int cs; +/* + * Description of the windows needed by the platform code + */ +static struct __initdata orion_addr_map_cfg addr_map_cfg = { + .num_wins = 8, + .remappable_wins = 4, + .bridge_virt_base = BRIDGE_VIRT_BASE, +}; +static const struct __initdata orion_addr_map_info addr_map_info[] = { /* - * First, disable and clear windows. + * Windows for PCIe IO+MEM space. */ - for (i = 0; i < 8; i++) { - writel(0, WIN_BASE(i)); - writel(0, WIN_CTRL(i)); - if (cpu_win_can_remap(i)) { - writel(0, WIN_REMAP_LO(i)); - writel(0, WIN_REMAP_HI(i)); - } - } - + { 0, DOVE_PCIE0_IO_PHYS_BASE, DOVE_PCIE0_IO_SIZE, + TARGET_PCIE0, ATTR_PCIE_IO, DOVE_PCIE0_IO_BUS_BASE + }, + { 1, DOVE_PCIE1_IO_PHYS_BASE, DOVE_PCIE1_IO_SIZE, + TARGET_PCIE1, ATTR_PCIE_IO, DOVE_PCIE1_IO_BUS_BASE + }, + { 2, DOVE_PCIE0_MEM_PHYS_BASE, DOVE_PCIE0_MEM_SIZE, + TARGET_PCIE0, ATTR_PCIE_MEM, -1 + }, + { 3, DOVE_PCIE1_MEM_PHYS_BASE, DOVE_PCIE1_MEM_SIZE, + TARGET_PCIE1, ATTR_PCIE_MEM, -1 + }, /* - * Setup windows for PCIe IO+MEM space. + * Window for CESA engine. */ - setup_cpu_win(0, DOVE_PCIE0_IO_PHYS_BASE, DOVE_PCIE0_IO_SIZE, - TARGET_PCIE0, ATTR_PCIE_IO, DOVE_PCIE0_IO_BUS_BASE); - setup_cpu_win(1, DOVE_PCIE1_IO_PHYS_BASE, DOVE_PCIE1_IO_SIZE, - TARGET_PCIE1, ATTR_PCIE_IO, DOVE_PCIE1_IO_BUS_BASE); - setup_cpu_win(2, DOVE_PCIE0_MEM_PHYS_BASE, DOVE_PCIE0_MEM_SIZE, - TARGET_PCIE0, ATTR_PCIE_MEM, -1); - setup_cpu_win(3, DOVE_PCIE1_MEM_PHYS_BASE, DOVE_PCIE1_MEM_SIZE, - TARGET_PCIE1, ATTR_PCIE_MEM, -1); - + { 4, DOVE_CESA_PHYS_BASE, DOVE_CESA_SIZE, + TARGET_CESA, ATTR_CESA, -1 + }, /* - * Setup window for CESA engine. + * Window to the BootROM for Standby and Sleep Resume */ - setup_cpu_win(4, DOVE_CESA_PHYS_BASE, DOVE_CESA_SIZE, - TARGET_CESA, ATTR_CESA, -1); - + { 5, DOVE_BOOTROM_PHYS_BASE, DOVE_BOOTROM_SIZE, + TARGET_BOOTROM, ATTR_BOOTROM, -1 + }, /* - * Setup the Window to the BootROM for Standby and Sleep Resume + * Window to the PMU Scratch Pad space */ - setup_cpu_win(5, DOVE_BOOTROM_PHYS_BASE, DOVE_BOOTROM_SIZE, - TARGET_BOOTROM, ATTR_BOOTROM, -1); + { 6, DOVE_SCRATCHPAD_PHYS_BASE, DOVE_SCRATCHPAD_SIZE, + TARGET_SCRATCHPAD, ATTR_SCRATCHPAD, -1 + }, + /* End marker */ + { -1, 0, 0, 0, 0, 0 } +}; + +void __init dove_setup_cpu_mbus(void) +{ + int i; + int cs; /* - * Setup the Window to the PMU Scratch Pad space + * Disable, clear and configure windows. */ - setup_cpu_win(6, DOVE_SCRATCHPAD_PHYS_BASE, DOVE_SCRATCHPAD_SIZE, - TARGET_SCRATCHPAD, ATTR_SCRATCHPAD, -1); + orion_config_wins(&addr_map_cfg, addr_map_info); /* * Setup MBUS dram target info. diff --git a/arch/arm/mach-kirkwood/addr-map.c b/arch/arm/mach-kirkwood/addr-map.c index 8d03bcef518..935392f7e13 100644 --- a/arch/arm/mach-kirkwood/addr-map.c +++ b/arch/arm/mach-kirkwood/addr-map.c @@ -13,12 +13,12 @@ #include <linux/mbus.h> #include <linux/io.h> #include <mach/hardware.h> +#include <plat/addr-map.h> #include "common.h" /* * Generic Address Decode Windows bit settings */ -#define TARGET_DDR 0 #define TARGET_DEV_BUS 1 #define TARGET_SRAM 3 #define TARGET_PCIE 4 @@ -35,119 +35,59 @@ #define ATTR_PCIE1_MEM 0xd8 #define ATTR_SRAM 0x01 -/* - * Helpers to get DDR bank info - */ -#define DDR_BASE_CS_OFF(n) (0x0000 + ((n) << 3)) -#define DDR_SIZE_CS_OFF(n) (0x0004 + ((n) << 3)) +struct mbus_dram_target_info kirkwood_mbus_dram_info; /* - * CPU Address Decode Windows registers + * Description of the windows needed by the platform code */ -#define WIN_OFF(n) (BRIDGE_VIRT_BASE + 0x0000 + ((n) << 4)) -#define WIN_CTRL_OFF 0x0000 -#define WIN_BASE_OFF 0x0004 -#define WIN_REMAP_LO_OFF 0x0008 -#define WIN_REMAP_HI_OFF 0x000c - - -struct mbus_dram_target_info kirkwood_mbus_dram_info; - -static int __init cpu_win_can_remap(int win) -{ - if (win < 4) - return 1; - - return 0; -} - -static void __init setup_cpu_win(int win, u32 base, u32 size, - u8 target, u8 attr, int remap) -{ - void __iomem *addr = (void __iomem *)WIN_OFF(win); - u32 ctrl; - - base &= 0xffff0000; - ctrl = ((size - 1) & 0xffff0000) | (attr << 8) | (target << 4) | 1; - - writel(base, addr + WIN_BASE_OFF); - writel(ctrl, addr + WIN_CTRL_OFF); - if (cpu_win_can_remap(win)) { - if (remap < 0) - remap = base; - - writel(remap & 0xffff0000, addr + WIN_REMAP_LO_OFF); - writel(0, addr + WIN_REMAP_HI_OFF); - } -} - -void __init kirkwood_setup_cpu_mbus(void) -{ - void __iomem *addr; - int i; - int cs; +static struct __initdata orion_addr_map_cfg addr_map_cfg = { + .num_wins = 8, + .remappable_wins = 4, + .bridge_virt_base = BRIDGE_VIRT_BASE, +}; +static const struct __initdata orion_addr_map_info addr_map_info[] = { /* - * First, disable and clear windows. + * Windows for PCIe IO+MEM space. */ - for (i = 0; i < 8; i++) { - addr = (void __iomem *)WIN_OFF(i); - - writel(0, addr + WIN_BASE_OFF); - writel(0, addr + WIN_CTRL_OFF); - if (cpu_win_can_remap(i)) { - writel(0, addr + WIN_REMAP_LO_OFF); - writel(0, addr + WIN_REMAP_HI_OFF); - } - } - + { 0, KIRKWOOD_PCIE_IO_PHYS_BASE, KIRKWOOD_PCIE_IO_SIZE, + TARGET_PCIE, ATTR_PCIE_IO, KIRKWOOD_PCIE_IO_BUS_BASE + }, + { 1, KIRKWOOD_PCIE_MEM_PHYS_BASE, KIRKWOOD_PCIE_MEM_SIZE, + TARGET_PCIE, ATTR_PCIE_MEM, KIRKWOOD_PCIE_MEM_BUS_BASE + }, + { 2, KIRKWOOD_PCIE1_IO_PHYS_BASE, KIRKWOOD_PCIE1_IO_SIZE, + TARGET_PCIE, ATTR_PCIE1_IO, KIRKWOOD_PCIE1_IO_BUS_BASE + }, + { 3, KIRKWOOD_PCIE1_MEM_PHYS_BASE, KIRKWOOD_PCIE1_MEM_SIZE, + TARGET_PCIE, ATTR_PCIE1_MEM, KIRKWOOD_PCIE1_MEM_BUS_BASE + }, /* - * Setup windows for PCIe IO+MEM space. + * Window for NAND controller. */ - setup_cpu_win(0, KIRKWOOD_PCIE_IO_PHYS_BASE, KIRKWOOD_PCIE_IO_SIZE, - TARGET_PCIE, ATTR_PCIE_IO, KIRKWOOD_PCIE_IO_BUS_BASE); - setup_cpu_win(1, KIRKWOOD_PCIE_MEM_PHYS_BASE, KIRKWOOD_PCIE_MEM_SIZE, - TARGET_PCIE, ATTR_PCIE_MEM, KIRKWOOD_PCIE_MEM_BUS_BASE); - setup_cpu_win(2, KIRKWOOD_PCIE1_IO_PHYS_BASE, KIRKWOOD_PCIE1_IO_SIZE, - TARGET_PCIE, ATTR_PCIE1_IO, KIRKWOOD_PCIE1_IO_BUS_BASE); - setup_cpu_win(3, KIRKWOOD_PCIE1_MEM_PHYS_BASE, KIRKWOOD_PCIE1_MEM_SIZE, - TARGET_PCIE, ATTR_PCIE1_MEM, KIRKWOOD_PCIE1_MEM_BUS_BASE); - + { 4, KIRKWOOD_NAND_MEM_PHYS_BASE, KIRKWOOD_NAND_MEM_SIZE, + TARGET_DEV_BUS, ATTR_DEV_NAND, -1 + }, /* - * Setup window for NAND controller. + * Window for SRAM. */ - setup_cpu_win(4, KIRKWOOD_NAND_MEM_PHYS_BASE, KIRKWOOD_NAND_MEM_SIZE, - TARGET_DEV_BUS, ATTR_DEV_NAND, -1); + { 5, KIRKWOOD_SRAM_PHYS_BASE, KIRKWOOD_SRAM_SIZE, + TARGET_SRAM, ATTR_SRAM, -1 + }, + /* End marker */ + { -1, 0, 0, 0, 0, 0 } +}; +void __init kirkwood_setup_cpu_mbus(void) +{ /* - * Setup window for SRAM. + * Disable, clear and configure windows. */ - setup_cpu_win(5, KIRKWOOD_SRAM_PHYS_BASE, KIRKWOOD_SRAM_SIZE, - TARGET_SRAM, ATTR_SRAM, -1); + orion_config_wins(&addr_map_cfg, addr_map_info); /* * Setup MBUS dram target info. */ - kirkwood_mbus_dram_info.mbus_dram_target_id = TARGET_DDR; - - addr = (void __iomem *)DDR_WINDOW_CPU_BASE; - - for (i = 0, cs = 0; i < 4; i++) { - u32 base = readl(addr + DDR_BASE_CS_OFF(i)); - u32 size = readl(addr + DDR_SIZE_CS_OFF(i)); - - /* - * Chip select enabled? - */ - if (size & 1) { - struct mbus_dram_window *w; - - w = &kirkwood_mbus_dram_info.cs[cs++]; - w->cs_index = i; - w->mbus_attr = 0xf & ~(1 << i); - w->base = base & 0xffff0000; - w->size = (size | 0x0000ffff) + 1; - } - } - kirkwood_mbus_dram_info.num_cs = cs; + orion_setup_cpu_mbus_target(&addr_map_cfg, &kirkwood_mbus_dram_info, + DDR_WINDOW_CPU_BASE); } diff --git a/arch/arm/mach-mv78xx0/addr-map.c b/arch/arm/mach-mv78xx0/addr-map.c index 311d5b0e9bc..6b14555e576 100644 --- a/arch/arm/mach-mv78xx0/addr-map.c +++ b/arch/arm/mach-mv78xx0/addr-map.c @@ -12,12 +12,12 @@ #include <linux/init.h> #include <linux/mbus.h> #include <linux/io.h> +#include <plat/addr-map.h> #include "common.h" /* * Generic Address Decode Windows bit settings */ -#define TARGET_DDR 0 #define TARGET_DEV_BUS 1 #define TARGET_PCIE0 4 #define TARGET_PCIE1 8 @@ -32,21 +32,10 @@ #define ATTR_PCIE_MEM(l) (0xf8 & ~(0x10 << (l))) /* - * Helpers to get DDR bank info - */ -#define DDR_BASE_CS_OFF(n) (0x0000 + ((n) << 3)) -#define DDR_SIZE_CS_OFF(n) (0x0004 + ((n) << 3)) - -/* * CPU Address Decode Windows registers */ #define WIN0_OFF(n) (BRIDGE_VIRT_BASE + 0x0000 + ((n) << 4)) #define WIN8_OFF(n) (BRIDGE_VIRT_BASE + 0x0900 + (((n) - 8) << 4)) -#define WIN_CTRL_OFF 0x0000 -#define WIN_BASE_OFF 0x0004 -#define WIN_REMAP_LO_OFF 0x0008 -#define WIN_REMAP_HI_OFF 0x000c - struct mbus_dram_target_info mv78xx0_mbus_dram_info; @@ -63,94 +52,45 @@ static void __init __iomem *win_cfg_base(int win) return (void __iomem *)((win < 8) ? WIN0_OFF(win) : WIN8_OFF(win)); } -static int __init cpu_win_can_remap(int win) -{ - if (win < 8) - return 1; - - return 0; -} - -static void __init setup_cpu_win(int win, u32 base, u32 size, - u8 target, u8 attr, int remap) -{ - void __iomem *addr = win_cfg_base(win); - u32 ctrl; - - base &= 0xffff0000; - ctrl = ((size - 1) & 0xffff0000) | (attr << 8) | (target << 4) | 1; - - writel(base, addr + WIN_BASE_OFF); - writel(ctrl, addr + WIN_CTRL_OFF); - if (cpu_win_can_remap(win)) { - if (remap < 0) - remap = base; - - writel(remap & 0xffff0000, addr + WIN_REMAP_LO_OFF); - writel(0, addr + WIN_REMAP_HI_OFF); - } -} +/* + * Description of the windows needed by the platform code + */ +static struct __initdata orion_addr_map_cfg addr_map_cfg = { + .num_wins = 14, + .remappable_wins = 8, + .win_cfg_base = win_cfg_base, +}; void __init mv78xx0_setup_cpu_mbus(void) { - void __iomem *addr; - int i; - int cs; - /* - * First, disable and clear windows. + * Disable, clear and configure windows. */ - for (i = 0; i < 14; i++) { - addr = win_cfg_base(i); - - writel(0, addr + WIN_BASE_OFF); - writel(0, addr + WIN_CTRL_OFF); - if (cpu_win_can_remap(i)) { - writel(0, addr + WIN_REMAP_LO_OFF); - writel(0, addr + WIN_REMAP_HI_OFF); - } - } + orion_config_wins(&addr_map_cfg, NULL); /* * Setup MBUS dram target info. */ - mv78xx0_mbus_dram_info.mbus_dram_target_id = TARGET_DDR; - if (mv78xx0_core_index() == 0) - addr = (void __iomem *)DDR_WINDOW_CPU0_BASE; + orion_setup_cpu_mbus_target(&addr_map_cfg, + &mv78xx0_mbus_dram_info, + DDR_WINDOW_CPU0_BASE); else - addr = (void __iomem *)DDR_WINDOW_CPU1_BASE; - - for (i = 0, cs = 0; i < 4; i++) { - u32 base = readl(addr + DDR_BASE_CS_OFF(i)); - u32 size = readl(addr + DDR_SIZE_CS_OFF(i)); - - /* - * Chip select enabled? - */ - if (size & 1) { - struct mbus_dram_window *w; - - w = &mv78xx0_mbus_dram_info.cs[cs++]; - w->cs_index = i; - w->mbus_attr = 0xf & ~(1 << i); - w->base = base & 0xffff0000; - w->size = (size | 0x0000ffff) + 1; - } - } - mv78xx0_mbus_dram_info.num_cs = cs; + orion_setup_cpu_mbus_target(&addr_map_cfg, + &mv78xx0_mbus_dram_info, + DDR_WINDOW_CPU1_BASE); } void __init mv78xx0_setup_pcie_io_win(int window, u32 base, u32 size, int maj, int min) { - setup_cpu_win(window, base, size, TARGET_PCIE(maj), - ATTR_PCIE_IO(min), -1); + orion_setup_cpu_win(&addr_map_cfg, window, base, size, + TARGET_PCIE(maj), ATTR_PCIE_IO(min), -1); } void __init mv78xx0_setup_pcie_mem_win(int window, u32 base, u32 size, int maj, int min) { - setup_cpu_win(window, base, size, TARGET_PCIE(maj), - ATTR_PCIE_MEM(min), -1); + orion_setup_cpu_win(&addr_map_cfg, window, base, size, + TARGET_PCIE(maj), ATTR_PCIE_MEM(min), -1); } diff --git a/arch/arm/mach-orion5x/addr-map.c b/arch/arm/mach-orion5x/addr-map.c index 5ceafdccc45..73ceb49de89 100644 --- a/arch/arm/mach-orion5x/addr-map.c +++ b/arch/arm/mach-orion5x/addr-map.c @@ -14,8 +14,8 @@ #include <linux/init.h> #include <linux/mbus.h> #include <linux/io.h> -#include <linux/errno.h> #include <mach/hardware.h> +#include <plat/addr-map.h> #include "common.h" /* @@ -41,7 +41,6 @@ /* * Generic Address Decode Windows bit settings */ -#define TARGET_DDR 0 #define TARGET_DEV_BUS 1 #define TARGET_PCI 3 #define TARGET_PCIE 4 @@ -57,27 +56,11 @@ #define ATTR_DEV_BOOT 0xf #define ATTR_SRAM 0x0 -/* - * Helpers to get DDR bank info - */ -#define ORION5X_DDR_REG(x) (ORION5X_DDR_VIRT_BASE | (x)) -#define DDR_BASE_CS(n) ORION5X_DDR_REG(0x1500 + ((n) << 3)) -#define DDR_SIZE_CS(n) ORION5X_DDR_REG(0x1504 + ((n) << 3)) - -/* - * CPU Address Decode Windows registers - */ -#define ORION5X_BRIDGE_REG(x) (ORION5X_BRIDGE_VIRT_BASE | (x)) -#define CPU_WIN_CTRL(n) ORION5X_BRIDGE_REG(0x000 | ((n) << 4)) -#define CPU_WIN_BASE(n) ORION5X_BRIDGE_REG(0x004 | ((n) << 4)) -#define CPU_WIN_REMAP_LO(n) ORION5X_BRIDGE_REG(0x008 | ((n) << 4)) -#define CPU_WIN_REMAP_HI(n) ORION5X_BRIDGE_REG(0x00c | ((n) << 4)) - - struct mbus_dram_target_info orion5x_mbus_dram_info; static int __initdata win_alloc_count; -static int __init orion5x_cpu_win_can_remap(int win) +static int __init cpu_win_can_remap(const struct orion_addr_map_cfg *cfg, + const int win) { u32 dev, rev; @@ -91,116 +74,83 @@ static int __init orion5x_cpu_win_can_remap(int win) return 0; } -static int __init setup_cpu_win(int win, u32 base, u32 size, - u8 target, u8 attr, int remap) -{ - if (win >= 8) { - printk(KERN_ERR "setup_cpu_win: trying to allocate " - "window %d\n", win); - return -ENOSPC; - } - - writel(base & 0xffff0000, CPU_WIN_BASE(win)); - writel(((size - 1) & 0xffff0000) | (attr << 8) | (target << 4) | 1, - CPU_WIN_CTRL(win)); - - if (orion5x_cpu_win_can_remap(win)) { - if (remap < 0) - remap = base; - - writel(remap & 0xffff0000, CPU_WIN_REMAP_LO(win)); - writel(0, CPU_WIN_REMAP_HI(win)); - } - return 0; -} - -void __init orion5x_setup_cpu_mbus_bridge(void) -{ - int i; - int cs; +/* + * Description of the windows needed by the platform code + */ +static struct __initdata orion_addr_map_cfg addr_map_cfg = { + .num_wins = 8, + .cpu_win_can_remap = cpu_win_can_remap, + .bridge_virt_base = ORION5X_BRIDGE_VIRT_BASE, +}; +static const struct __initdata orion_addr_map_info addr_map_info[] = { /* - * First, disable and clear windows. + * Setup windows for PCI+PCIe IO+MEM space. */ - for (i = 0; i < 8; i++) { - writel(0, CPU_WIN_BASE(i)); - writel(0, CPU_WIN_CTRL(i)); - if (orion5x_cpu_win_can_remap(i)) { - writel(0, CPU_WIN_REMAP_LO(i)); - writel(0, CPU_WIN_REMAP_HI(i)); - } - } + { 0, ORION5X_PCIE_IO_PHYS_BASE, ORION5X_PCIE_IO_SIZE, + TARGET_PCIE, ATTR_PCIE_IO, ORION5X_PCIE_IO_BUS_BASE + }, + { 1, ORION5X_PCI_IO_PHYS_BASE, ORION5X_PCI_IO_SIZE, + TARGET_PCI, ATTR_PCI_IO, ORION5X_PCI_IO_BUS_BASE + }, + { 2, ORION5X_PCIE_MEM_PHYS_BASE, ORION5X_PCIE_MEM_SIZE, + TARGET_PCIE, ATTR_PCIE_MEM, -1 + }, + { 3, ORION5X_PCI_MEM_PHYS_BASE, ORION5X_PCI_MEM_SIZE, + TARGET_PCI, ATTR_PCI_MEM, -1 + }, + /* End marker */ + { -1, 0, 0, 0, 0, 0 } +}; +void __init orion5x_setup_cpu_mbus_bridge(void) +{ /* - * Setup windows for PCI+PCIe IO+MEM space. + * Disable, clear and configure windows. */ - setup_cpu_win(0, ORION5X_PCIE_IO_PHYS_BASE, ORION5X_PCIE_IO_SIZE, - TARGET_PCIE, ATTR_PCIE_IO, ORION5X_PCIE_IO_BUS_BASE); - setup_cpu_win(1, ORION5X_PCI_IO_PHYS_BASE, ORION5X_PCI_IO_SIZE, - TARGET_PCI, ATTR_PCI_IO, ORION5X_PCI_IO_BUS_BASE); - setup_cpu_win(2, ORION5X_PCIE_MEM_PHYS_BASE, ORION5X_PCIE_MEM_SIZE, - TARGET_PCIE, ATTR_PCIE_MEM, -1); - setup_cpu_win(3, ORION5X_PCI_MEM_PHYS_BASE, ORION5X_PCI_MEM_SIZE, - TARGET_PCI, ATTR_PCI_MEM, -1); + orion_config_wins(&addr_map_cfg, addr_map_info); win_alloc_count = 4; /* * Setup MBUS dram target info. */ - orion5x_mbus_dram_info.mbus_dram_target_id = TARGET_DDR; - - for (i = 0, cs = 0; i < 4; i++) { - u32 base = readl(DDR_BASE_CS(i)); - u32 size = readl(DDR_SIZE_CS(i)); - - /* - * Chip select enabled? - */ - if (size & 1) { - struct mbus_dram_window *w; - - w = &orion5x_mbus_dram_info.cs[cs++]; - w->cs_index = i; - w->mbus_attr = 0xf & ~(1 << i); - w->base = base & 0xffff0000; - w->size = (size | 0x0000ffff) + 1; - } - } - orion5x_mbus_dram_info.num_cs = cs; + orion_setup_cpu_mbus_target(&addr_map_cfg, &orion5x_mbus_dram_info, + ORION5X_DDR_WINDOW_CPU_BASE); } void __init orion5x_setup_dev_boot_win(u32 base, u32 size) { - setup_cpu_win(win_alloc_count++, base, size, - TARGET_DEV_BUS, ATTR_DEV_BOOT, -1); + orion_setup_cpu_win(&addr_map_cfg, win_alloc_count++, base, size, + TARGET_DEV_BUS, ATTR_DEV_BOOT, -1); } void __init orion5x_setup_dev0_win(u32 base, u32 size) { - setup_cpu_win(win_alloc_count++, base, size, - TARGET_DEV_BUS, ATTR_DEV_CS0, -1); + orion_setup_cpu_win(&addr_map_cfg, win_alloc_count++, base, size, + TARGET_DEV_BUS, ATTR_DEV_CS0, -1); } void __init orion5x_setup_dev1_win(u32 base, u32 size) { - setup_cpu_win(win_alloc_count++, base, size, - TARGET_DEV_BUS, ATTR_DEV_CS1, -1); + orion_setup_cpu_win(&addr_map_cfg, win_alloc_count++, base, size, + TARGET_DEV_BUS, ATTR_DEV_CS1, -1); } void __init orion5x_setup_dev2_win(u32 base, u32 size) { - setup_cpu_win(win_alloc_count++, base, size, - TARGET_DEV_BUS, ATTR_DEV_CS2, -1); + orion_setup_cpu_win(&addr_map_cfg, win_alloc_count++, base, size, + TARGET_DEV_BUS, ATTR_DEV_CS2, -1); } void __init orion5x_setup_pcie_wa_win(u32 base, u32 size) { - setup_cpu_win(win_alloc_count++, base, size, - TARGET_PCIE, ATTR_PCIE_WA, -1); + orion_setup_cpu_win(&addr_map_cfg, win_alloc_count++, base, size, + TARGET_PCIE, ATTR_PCIE_WA, -1); } -int __init orion5x_setup_sram_win(void) +void __init orion5x_setup_sram_win(void) { - return setup_cpu_win(win_alloc_count++, ORION5X_SRAM_PHYS_BASE, - ORION5X_SRAM_SIZE, TARGET_SRAM, ATTR_SRAM, -1); + orion_setup_cpu_win(&addr_map_cfg, win_alloc_count++, + ORION5X_SRAM_PHYS_BASE, ORION5X_SRAM_SIZE, + TARGET_SRAM, ATTR_SRAM, -1); } diff --git a/arch/arm/mach-orion5x/common.c b/arch/arm/mach-orion5x/common.c index 22ace0bf2f9..47ca0ee44a6 100644 --- a/arch/arm/mach-orion5x/common.c +++ b/arch/arm/mach-orion5x/common.c @@ -169,12 +169,7 @@ void __init orion5x_xor_init(void) ****************************************************************************/ static void __init orion5x_crypto_init(void) { - int ret; - - ret = orion5x_setup_sram_win(); - if (ret) - return; - + orion5x_setup_sram_win(); orion_crypto_init(ORION5X_CRYPTO_PHYS_BASE, ORION5X_SRAM_PHYS_BASE, SZ_8K, IRQ_ORION5X_CESA); } diff --git a/arch/arm/mach-orion5x/common.h b/arch/arm/mach-orion5x/common.h index 909489f4d23..465e8a458bf 100644 --- a/arch/arm/mach-orion5x/common.h +++ b/arch/arm/mach-orion5x/common.h @@ -27,7 +27,7 @@ void orion5x_setup_dev0_win(u32 base, u32 size); void orion5x_setup_dev1_win(u32 base, u32 size); void orion5x_setup_dev2_win(u32 base, u32 size); void orion5x_setup_pcie_wa_win(u32 base, u32 size); -int orion5x_setup_sram_win(void); +void orion5x_setup_sram_win(void); void orion5x_ehci0_init(void); void orion5x_ehci1_init(void); diff --git a/arch/arm/mach-orion5x/include/mach/orion5x.h b/arch/arm/mach-orion5x/include/mach/orion5x.h index 0a28bbc7689..2745f5d95b3 100644 --- a/arch/arm/mach-orion5x/include/mach/orion5x.h +++ b/arch/arm/mach-orion5x/include/mach/orion5x.h @@ -69,7 +69,7 @@ ******************************************************************************/ #define ORION5X_DDR_VIRT_BASE (ORION5X_REGS_VIRT_BASE | 0x00000) - +#define ORION5X_DDR_WINDOW_CPU_BASE (ORION5X_DDR_VIRT_BASE | 0x1500) #define ORION5X_DEV_BUS_PHYS_BASE (ORION5X_REGS_PHYS_BASE | 0x10000) #define ORION5X_DEV_BUS_VIRT_BASE (ORION5X_REGS_VIRT_BASE | 0x10000) #define ORION5X_DEV_BUS_REG(x) (ORION5X_DEV_BUS_VIRT_BASE | (x)) diff --git a/arch/arm/plat-orion/Makefile b/arch/arm/plat-orion/Makefile index 95a5fc53b6d..c20ce0f5ce3 100644 --- a/arch/arm/plat-orion/Makefile +++ b/arch/arm/plat-orion/Makefile @@ -2,7 +2,7 @@ # Makefile for the linux kernel. # -obj-y := irq.o pcie.o time.o common.o mpp.o +obj-y := irq.o pcie.o time.o common.o mpp.o addr-map.o obj-m := obj-n := obj- := diff --git a/arch/arm/plat-orion/addr-map.c b/arch/arm/plat-orion/addr-map.c new file mode 100644 index 00000000000..d3abb34a10a --- /dev/null +++ b/arch/arm/plat-orion/addr-map.c @@ -0,0 +1,166 @@ +/* + * arch/arm/plat-orion/addr-map.c + * + * Address map functions for Marvell Orion based SoCs + * + * This file is licensed under the terms of the GNU General Public + * License version 2. This program is licensed "as is" without any + * warranty of any kind, whether express or implied. + */ + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/mbus.h> +#include <linux/io.h> +#include <plat/addr-map.h> + +/* + * DDR target is the same on all Orion platforms. + */ +#define TARGET_DDR 0 + +/* + * Helpers to get DDR bank info + */ +#define DDR_BASE_CS_OFF(n) (0x0000 + ((n) << 3)) +#define DDR_SIZE_CS_OFF(n) (0x0004 + ((n) << 3)) + +/* + * CPU Address Decode Windows registers + */ +#define WIN_CTRL_OFF 0x0000 +#define WIN_BASE_OFF 0x0004 +#define WIN_REMAP_LO_OFF 0x0008 +#define WIN_REMAP_HI_OFF 0x000c + +/* + * Default implementation + */ +static void __init __iomem * +orion_win_cfg_base(const struct orion_addr_map_cfg *cfg, int win) +{ + return (void __iomem *)(cfg->bridge_virt_base + (win << 4)); +} + +/* + * Default implementation + */ +static int __init orion_cpu_win_can_remap(const struct orion_addr_map_cfg *cfg, + const int win) +{ + if (win < cfg->remappable_wins) + return 1; + + return 0; +} + +void __init orion_setup_cpu_win(const struct orion_addr_map_cfg *cfg, + const int win, const u32 base, + const u32 size, const u8 target, + const u8 attr, const int remap) +{ + void __iomem *addr = cfg->win_cfg_base(cfg, win); + u32 ctrl, base_high, remap_addr; + + if (win >= cfg->num_wins) { + printk(KERN_ERR "setup_cpu_win: trying to allocate window " + "%d when only %d allowed\n", win, cfg->num_wins); + } + + base_high = base & 0xffff0000; + ctrl = ((size - 1) & 0xffff0000) | (attr << 8) | (target << 4) | 1; + + writel(base_high, addr + WIN_BASE_OFF); + writel(ctrl, addr + WIN_CTRL_OFF); + if (cfg->cpu_win_can_remap(cfg, win)) { + if (remap < 0) + remap_addr = base; + else + remap_addr = remap; + writel(remap_addr & 0xffff0000, addr + WIN_REMAP_LO_OFF); + writel(0, addr + WIN_REMAP_HI_OFF); + } +} + +/* + * Configure a number of windows. + */ +static void __init orion_setup_cpu_wins(const struct orion_addr_map_cfg * cfg, + const struct orion_addr_map_info *info) +{ + while (info->win != -1) { + orion_setup_cpu_win(cfg, info->win, info->base, info->size, + info->target, info->attr, info->remap); + info++; + } +} + +static void __init orion_disable_wins(const struct orion_addr_map_cfg * cfg) +{ + void __iomem *addr; + int i; + + for (i = 0; i < cfg->num_wins; i++) { + addr = cfg->win_cfg_base(cfg, i); + + writel(0, addr + WIN_BASE_OFF); + writel(0, addr + WIN_CTRL_OFF); + if (cfg->cpu_win_can_remap(cfg, i)) { + writel(0, addr + WIN_REMAP_LO_OFF); + writel(0, addr + WIN_REMAP_HI_OFF); + } + } +} + +/* + * Disable, clear and configure windows. + */ +void __init orion_config_wins(struct orion_addr_map_cfg * cfg, + const struct orion_addr_map_info *info) +{ + if (!cfg->cpu_win_can_remap) + cfg->cpu_win_can_remap = orion_cpu_win_can_remap; + + if (!cfg->win_cfg_base) + cfg->win_cfg_base = orion_win_cfg_base; + + orion_disable_wins(cfg); + + if (info) + orion_setup_cpu_wins(cfg, info); +} + +/* + * Setup MBUS dram target info. + */ +void __init orion_setup_cpu_mbus_target(const struct orion_addr_map_cfg *cfg, + struct mbus_dram_target_info *info, + const u32 ddr_window_cpu_base) +{ + void __iomem *addr; + int i; + int cs; + + info->mbus_dram_target_id = TARGET_DDR; + + addr = (void __iomem *)ddr_window_cpu_base; + + for (i = 0, cs = 0; i < 4; i++) { + u32 base = readl(addr + DDR_BASE_CS_OFF(i)); + u32 size = readl(addr + DDR_SIZE_CS_OFF(i)); + + /* + * Chip select enabled? + */ + if (size & 1) { + struct mbus_dram_window *w; + + w = &info->cs[cs++]; + w->cs_index = i; + w->mbus_attr = 0xf & ~(1 << i); + w->base = base & 0xffff0000; + w->size = (size | 0x0000ffff) + 1; + } + } + info->num_cs = cs; +} diff --git a/arch/arm/plat-orion/include/plat/addr-map.h b/arch/arm/plat-orion/include/plat/addr-map.h new file mode 100644 index 00000000000..55e40f43f1e --- /dev/null +++ b/arch/arm/plat-orion/include/plat/addr-map.h @@ -0,0 +1,52 @@ +/* + * arch/arm/plat-orion/include/plat/addr-map.h + * + * Marvell Orion SoC address map handling. + * + * This file is licensed under the terms of the GNU General Public + * License version 2. This program is licensed "as is" without any + * warranty of any kind, whether express or implied. + */ + +#ifndef __PLAT_ADDR_MAP_H +#define __PLAT_ADDR_MAP_H + +struct orion_addr_map_cfg { + const int num_wins; /* Total number of windows */ + const int remappable_wins; + const u32 bridge_virt_base; + + /* If NULL, the default cpu_win_can_remap will be used, using + the value in remappable_wins */ + int (*cpu_win_can_remap) (const struct orion_addr_map_cfg *cfg, + const int win); + /* If NULL, the default win_cfg_base will be used, using the + value in bridge_virt_base */ + void __iomem *(*win_cfg_base) (const struct orion_addr_map_cfg *cfg, + const int win); +}; + +/* + * Information needed to setup one address mapping. + */ +struct orion_addr_map_info { + const int win; + const u32 base; + const u32 size; + const u8 target; + const u8 attr; + const int remap; +}; + +void __init orion_config_wins(struct orion_addr_map_cfg *cfg, + const struct orion_addr_map_info *info); + +void __init orion_setup_cpu_win(const struct orion_addr_map_cfg *cfg, + const int win, const u32 base, + const u32 size, const u8 target, + const u8 attr, const int remap); + +void __init orion_setup_cpu_mbus_target(const struct orion_addr_map_cfg *cfg, + struct mbus_dram_target_info *info, + const u32 ddr_window_cpu_base); +#endif |