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author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-01-09 14:38:51 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-01-09 14:38:51 -0800 |
commit | 5ede3ceb7b2c2843e153a1803edbdc8c56655950 (patch) | |
tree | 4cfa82b619f7d39b671e4a2a213f4d040b09c486 /arch/arm/mach-kirkwood/addr-map.c | |
parent | 6d889d03ab1417645e76e129834f76204bae37c0 (diff) | |
parent | 3e2762c8f1141ae8dc708034ea41d6827818c328 (diff) | |
download | op-kernel-dev-5ede3ceb7b2c2843e153a1803edbdc8c56655950.zip op-kernel-dev-5ede3ceb7b2c2843e153a1803edbdc8c56655950.tar.gz |
Merge tag 'devel' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
New feature development
This adds support for new features, and contains stuff from most
platforms. A number of these patches could have fit into other
branches, too, but were small enough not to cause too much
confusion here.
* tag 'devel' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (28 commits)
mfd/db8500-prcmu: remove support for early silicon revisions
ARM: ux500: fix the smp_twd clock calculation
ARM: ux500: remove support for early silicon revisions
ARM: ux500: update register files
ARM: ux500: register DB5500 PMU dynamically
ARM: ux500: update ASIC detection for U5500
ARM: ux500: support DB8520
ARM: picoxcell: implement watchdog restart
ARM: OMAP3+: hwmod data: Add the default clockactivity for I2C
ARM: OMAP3: hwmod data: disable multiblock reads on MMC1/2 on OMAP34xx/35xx <= ES2.1
ARM: OMAP: USB: EHCI and OHCI hwmod structures for OMAP4
ARM: OMAP: USB: EHCI and OHCI hwmod structures for OMAP3
ARM: OMAP: hwmod data: Add support for AM35xx UART4/ttyO3
ARM: Orion: Remove address map info from all platform data structures
ARM: Orion: Get address map from plat-orion instead of via platform_data
ARM: Orion: mbus_dram_info consolidation
ARM: Orion: Consolidate the address map setup
ARM: Kirkwood: Add configuration for MPP12 as GPIO
ARM: Kirkwood: Recognize A1 revision of 6282 chip
ARM: ux500: update the MOP500 GPIO assignments
...
Diffstat (limited to 'arch/arm/mach-kirkwood/addr-map.c')
-rw-r--r-- | arch/arm/mach-kirkwood/addr-map.c | 137 |
1 files changed, 37 insertions, 100 deletions
diff --git a/arch/arm/mach-kirkwood/addr-map.c b/arch/arm/mach-kirkwood/addr-map.c index 8d03bce..e9a7180 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 @@ -36,118 +36,55 @@ #define ATTR_SRAM 0x01 /* - * Helpers to get DDR bank info + * Description of the windows needed by the platform code */ -#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_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, DDR_WINDOW_CPU_BASE); } |