diff options
Diffstat (limited to 'arch/arm/plat-mxc/include/mach/hardware.h')
| -rw-r--r-- | arch/arm/plat-mxc/include/mach/hardware.h | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/arch/arm/plat-mxc/include/mach/hardware.h b/arch/arm/plat-mxc/include/mach/hardware.h index 409cec6223df..dde777c10176 100644 --- a/arch/arm/plat-mxc/include/mach/hardware.h +++ b/arch/arm/plat-mxc/include/mach/hardware.h @@ -32,6 +32,73 @@ (((addr) - module ## _BASE_ADDR) < module ## _SIZE ? \ (addr) - (module ## _BASE_ADDR) + (module ## _BASE_ADDR_VIRT) : 0) +/* + * This is rather complicated for humans and ugly to verify, but for a machine + * it's OK. Still more as it is usually only applied to constants. The upsides + * on using this approach are: + * + * - same mapping on all i.MX machines + * - works for assembler, too + * - no need to nurture #defines for virtual addresses + * + * The downside it, it's hard to verify (but I have a script for that). + * + * Obviously this needs to be injective for each SoC. In general it maps the + * whole address space to [0xf4000000, 0xf5ffffff]. So [0xf6000000,0xfeffffff] + * is free for per-machine use (e.g. KZM_ARM11_01 uses 64MiB there). + * + * It applies the following mappings for the different SoCs: + * + * mx1: + * IO 0x00200000+0x100000 -> 0xf4000000+0x100000 + * mx21: + * AIPI 0x10000000+0x100000 -> 0xf4400000+0x100000 + * SAHB1 0x80000000+0x100000 -> 0xf4000000+0x100000 + * X_MEMC 0xdf000000+0x004000 -> 0xf5f00000+0x004000 + * mx25: + * AIPS1 0x43f00000+0x100000 -> 0xf5300000+0x100000 + * AIPS2 0x53f00000+0x100000 -> 0xf5700000+0x100000 + * AVIC 0x68000000+0x100000 -> 0xf5800000+0x100000 + * mx27: + * AIPI 0x10000000+0x100000 -> 0xf4400000+0x100000 + * SAHB1 0x80000000+0x100000 -> 0xf4000000+0x100000 + * X_MEMC 0xd8000000+0x100000 -> 0xf5c00000+0x100000 + * mx31: + * AIPS1 0x43f00000+0x100000 -> 0xf5300000+0x100000 + * AIPS2 0x53f00000+0x100000 -> 0xf5700000+0x100000 + * AVIC 0x68000000+0x100000 -> 0xf5800000+0x100000 + * X_MEMC 0xb8000000+0x010000 -> 0xf4c00000+0x010000 + * SPBA0 0x50000000+0x100000 -> 0xf5400000+0x100000 + * mx35: + * AIPS1 0x43f00000+0x100000 -> 0xf5300000+0x100000 + * AIPS2 0x53f00000+0x100000 -> 0xf5700000+0x100000 + * AVIC 0x68000000+0x100000 -> 0xf5800000+0x100000 + * X_MEMC 0xb8000000+0x010000 -> 0xf4c00000+0x010000 + * SPBA0 0x50000000+0x100000 -> 0xf5400000+0x100000 + * mx51: + * IRAM 0x1ffe0000+0x020000 -> 0xf4fe0000+0x020000 + * DEBUG 0x60000000+0x100000 -> 0xf5000000+0x100000 + * SPBA0 0x70000000+0x100000 -> 0xf5400000+0x100000 + * AIPS1 0x73f00000+0x100000 -> 0xf5700000+0x100000 + * AIPS2 0x83f00000+0x100000 -> 0xf4300000+0x100000 + * mxc91231: + * L2CC 0x30000000+0x010000 -> 0xf4400000+0x010000 + * X_MEMC 0xb8000000+0x010000 -> 0xf4c00000+0x010000 + * ROMP 0x60000000+0x010000 -> 0xf5000000+0x010000 + * AVIC 0x68000000+0x010000 -> 0xf5800000+0x010000 + * AIPS1 0x43f00000+0x100000 -> 0xf5300000+0x100000 + * SPBA0 0x50000000+0x100000 -> 0xf5400000+0x100000 + * SPBA1 0x52000000+0x100000 -> 0xf5600000+0x100000 + * AIPS2 0x53f00000+0x100000 -> 0xf5700000+0x100000 + */ +#define IMX_IO_P2V(x) ( \ + 0xf4000000 + \ + (((x) & 0x50000000) >> 6) + \ + (((x) & 0x0b000000) >> 4) + \ + (((x) & 0x000fffff))) + +#define IMX_IO_ADDRESS(x) IOMEM(IMX_IO_P2V(x)) + #ifdef CONFIG_ARCH_MX5 #include <mach/mx51.h> #endif |