diff options
| author | Kumar Gala <galak@kernel.crashing.org> | 2008-12-16 14:59:20 -0600 |
|---|---|---|
| committer | Andrew Fleming-AFLEMING <afleming@freescale.com> | 2008-12-19 18:20:08 -0600 |
| commit | ecf5b98c7a6a2e2256dfddd48fab26678dcd6b90 (patch) | |
| tree | b5b14efe94ac15ab102d14cc9233b20d1213f994 | |
| parent | 78bbc5ce151c5a484bb51bf1866b4a993ffc16ec (diff) | |
| download | u-boot-imx-ecf5b98c7a6a2e2256dfddd48fab26678dcd6b90.zip u-boot-imx-ecf5b98c7a6a2e2256dfddd48fab26678dcd6b90.tar.gz u-boot-imx-ecf5b98c7a6a2e2256dfddd48fab26678dcd6b90.tar.bz2 | |
85xx: Add support to populate addr map based on TLB settings
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| -rw-r--r-- | cpu/mpc85xx/tlb.c | 34 | ||||
| -rw-r--r-- | include/asm-ppc/mmu.h | 3 | ||||
| -rw-r--r-- | lib_ppc/board.c | 8 |
3 files changed, 45 insertions, 0 deletions
diff --git a/cpu/mpc85xx/tlb.c b/cpu/mpc85xx/tlb.c index a2d16ae..5b5f791 100644 --- a/cpu/mpc85xx/tlb.c +++ b/cpu/mpc85xx/tlb.c @@ -26,6 +26,11 @@ #include <common.h> #include <asm/processor.h> #include <asm/mmu.h> +#ifdef CONFIG_ADDR_MAP +#include <addr_map.h> +#endif + +DECLARE_GLOBAL_DATA_PTR; void set_tlb(u8 tlb, u32 epn, u64 rpn, u8 perms, u8 wimge, @@ -47,6 +52,11 @@ void set_tlb(u8 tlb, u32 epn, u64 rpn, mtspr(MAS7, _mas7); #endif asm volatile("isync;msync;tlbwe;isync"); + +#ifdef CONFIG_ADDR_MAP + if ((tlb == 1) && (gd->flags & GD_FLG_RELOC)) + addrmap_set_entry(epn, rpn, (1UL << ((tsize * 2) + 10)), esel); +#endif } void disable_tlb(u8 esel) @@ -67,6 +77,11 @@ void disable_tlb(u8 esel) mtspr(MAS7, _mas7); #endif asm volatile("isync;msync;tlbwe;isync"); + +#ifdef CONFIG_ADDR_MAP + if (gd->flags & GD_FLG_RELOC) + addrmap_set_entry(0, 0, 0, esel); +#endif } void invalidate_tlb(u8 tlb) @@ -91,6 +106,25 @@ void init_tlbs(void) return ; } +#ifdef CONFIG_ADDR_MAP +void init_addr_map(void) +{ + int i; + + for (i = 0; i < num_tlb_entries; i++) { + if (tlb_table[i].tlb == 0) + continue; + + addrmap_set_entry(tlb_table[i].epn, + tlb_table[i].rpn, + (1UL << ((tlb_table[i].tsize * 2) + 10)), + tlb_table[i].esel); + } + + return ; +} +#endif + unsigned int setup_ddr_tlbs(unsigned int memsize_in_meg) { unsigned int tlb_size; diff --git a/include/asm-ppc/mmu.h b/include/asm-ppc/mmu.h index 8975e6c..6d942d0 100644 --- a/include/asm-ppc/mmu.h +++ b/include/asm-ppc/mmu.h @@ -431,6 +431,9 @@ extern void set_tlb(u8 tlb, u32 epn, u64 rpn, extern void disable_tlb(u8 esel); extern void invalidate_tlb(u8 tlb); extern void init_tlbs(void); +#ifdef CONFIG_ADDR_MAP +extern void init_addr_map(void); +#endif extern unsigned int setup_ddr_tlbs(unsigned int memsize_in_meg); #define SET_TLB_ENTRY(_tlb, _epn, _rpn, _perms, _wimge, _ts, _esel, _sz, _iprot) \ diff --git a/lib_ppc/board.c b/lib_ppc/board.c index 289a32a..61c29b5 100644 --- a/lib_ppc/board.c +++ b/lib_ppc/board.c @@ -75,6 +75,10 @@ #include <keyboard.h> #endif +#ifdef CONFIG_ADDR_MAP +#include <asm/mmu.h> +#endif + #ifdef CONFIG_SYS_UPDATE_FLASH_SIZE extern int update_flash_size (int flash_size); #endif @@ -694,6 +698,10 @@ void board_init_r (gd_t *id, ulong dest_addr) */ trap_init (dest_addr); +#if defined(CONFIG_ADDR_MAP) && defined(CONFIG_E500) + init_addr_map(); +#endif + #if defined(CONFIG_BOARD_EARLY_INIT_R) board_early_init_r (); #endif |