diff options
Diffstat (limited to 'arch/arm/mach-kirkwood/addr-map.c')
| -rw-r--r-- | arch/arm/mach-kirkwood/addr-map.c | 138 |
1 files changed, 39 insertions, 99 deletions
diff --git a/arch/arm/mach-kirkwood/addr-map.c b/arch/arm/mach-kirkwood/addr-map.c index 8d03bcef5182..935392f7e13f 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); } |