diff options
| -rw-r--r-- | cpu/mpc86xx/cpu_init.c | 27 | ||||
| -rw-r--r-- | include/asm-ppc/mmu.h | 16 | ||||
| -rw-r--r-- | lib_ppc/bat_rw.c | 28 | ||||
| -rw-r--r-- | lib_ppc/board.c | 2 |
4 files changed, 69 insertions, 4 deletions
diff --git a/cpu/mpc86xx/cpu_init.c b/cpu/mpc86xx/cpu_init.c index a7e6036..4f29122 100644 --- a/cpu/mpc86xx/cpu_init.c +++ b/cpu/mpc86xx/cpu_init.c @@ -154,3 +154,30 @@ void setup_bats(void) return; } + +#ifdef CONFIG_ADDR_MAP +/* Initialize address mapping array */ +void init_addr_map(void) +{ + int i; + ppc_bat_t bat = DBAT0; + phys_size_t size; + unsigned long upper, lower; + + for (i = 0; i < CONFIG_SYS_NUM_ADDR_MAP; i++, bat++) { + if (read_bat(bat, &upper, &lower) != -1) { + if (!BATU_VALID(upper)) + size = 0; + else + size = BATU_SIZE(upper); + addrmap_set_entry(BATU_VADDR(upper), BATL_PADDR(lower), + size, i); + } +#ifdef CONFIG_HIGH_BATS + /* High bats are not contiguous with low BAT numbers */ + if (bat == DBAT3) + bat = DBAT4 - 1; +#endif + } +} +#endif diff --git a/include/asm-ppc/mmu.h b/include/asm-ppc/mmu.h index ce04e62..fa92b90 100644 --- a/include/asm-ppc/mmu.h +++ b/include/asm-ppc/mmu.h @@ -138,6 +138,10 @@ typedef struct _MMU_context { extern void _tlbie(unsigned long va); /* invalidate a TLB entry */ extern void _tlbia(void); /* invalidate all TLB entries */ +#ifdef CONFIG_ADDR_MAP +extern void init_addr_map(void); +#endif + typedef enum { IBAT0 = 0, IBAT1, IBAT2, IBAT3, DBAT0, DBAT1, DBAT2, DBAT3, @@ -203,6 +207,14 @@ extern void print_bats(void); #define BPP_RX 0x01 /* Read only */ #define BPP_RW 0x02 /* Read/write */ +/* Macros to get values from BATs, once data is in the BAT register format */ +#define BATU_VALID(x) (x & 0x3) +#define BATU_VADDR(x) (x & 0xfffe0000) +#define BATL_PADDR(x) ((phys_addr_t)((x & 0xfffe0000) \ + | ((x & 0x0e00ULL) << 24) \ + | ((x & 0x04ULL) << 30))) +#define BATU_SIZE(x) (1UL << (fls((x & BATU_BL_MAX) >> 2) + 17)) + /* Used to set up SDR1 register */ #define HASH_TABLE_SIZE_64K 0x00010000 #define HASH_TABLE_SIZE_128K 0x00020000 @@ -462,9 +474,7 @@ 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/bat_rw.c b/lib_ppc/bat_rw.c index a40b377..c48c240 100644 --- a/lib_ppc/bat_rw.c +++ b/lib_ppc/bat_rw.c @@ -27,14 +27,23 @@ #include <asm/mmu.h> #include <asm/io.h> +#ifdef CONFIG_ADDR_MAP +#include <addr_map.h> +#endif + +DECLARE_GLOBAL_DATA_PTR; + int write_bat (ppc_bat_t bat, unsigned long upper, unsigned long lower) { + int batn = -1; + sync(); switch (bat) { case DBAT0: mtspr (DBAT0L, lower); mtspr (DBAT0U, upper); + batn = 0; break; case IBAT0: mtspr (IBAT0L, lower); @@ -43,6 +52,7 @@ int write_bat (ppc_bat_t bat, unsigned long upper, unsigned long lower) case DBAT1: mtspr (DBAT1L, lower); mtspr (DBAT1U, upper); + batn = 1; break; case IBAT1: mtspr (IBAT1L, lower); @@ -51,6 +61,7 @@ int write_bat (ppc_bat_t bat, unsigned long upper, unsigned long lower) case DBAT2: mtspr (DBAT2L, lower); mtspr (DBAT2U, upper); + batn = 2; break; case IBAT2: mtspr (IBAT2L, lower); @@ -59,6 +70,7 @@ int write_bat (ppc_bat_t bat, unsigned long upper, unsigned long lower) case DBAT3: mtspr (DBAT3L, lower); mtspr (DBAT3U, upper); + batn = 3; break; case IBAT3: mtspr (IBAT3L, lower); @@ -68,6 +80,7 @@ int write_bat (ppc_bat_t bat, unsigned long upper, unsigned long lower) case DBAT4: mtspr (DBAT4L, lower); mtspr (DBAT4U, upper); + batn = 4; break; case IBAT4: mtspr (IBAT4L, lower); @@ -76,6 +89,7 @@ int write_bat (ppc_bat_t bat, unsigned long upper, unsigned long lower) case DBAT5: mtspr (DBAT5L, lower); mtspr (DBAT5U, upper); + batn = 5; break; case IBAT5: mtspr (IBAT5L, lower); @@ -84,6 +98,7 @@ int write_bat (ppc_bat_t bat, unsigned long upper, unsigned long lower) case DBAT6: mtspr (DBAT6L, lower); mtspr (DBAT6U, upper); + batn = 6; break; case IBAT6: mtspr (IBAT6L, lower); @@ -92,6 +107,7 @@ int write_bat (ppc_bat_t bat, unsigned long upper, unsigned long lower) case DBAT7: mtspr (DBAT7L, lower); mtspr (DBAT7U, upper); + batn = 7; break; case IBAT7: mtspr (IBAT7L, lower); @@ -102,6 +118,18 @@ int write_bat (ppc_bat_t bat, unsigned long upper, unsigned long lower) return (-1); } +#ifdef CONFIG_ADDR_MAP + if ((gd->flags & GD_FLG_RELOC) && (batn >= 0)) { + phys_size_t size; + if (!BATU_VALID(upper)) + size = 0; + else + size = BATU_SIZE(upper); + addrmap_set_entry(BATU_VADDR(upper), BATL_PADDR(lower), + size, batn); + } +#endif + sync(); isync(); diff --git a/lib_ppc/board.c b/lib_ppc/board.c index df1cf13..2262bb4 100644 --- a/lib_ppc/board.c +++ b/lib_ppc/board.c @@ -685,7 +685,7 @@ void board_init_r (gd_t *id, ulong dest_addr) */ trap_init (dest_addr); -#if defined(CONFIG_ADDR_MAP) && defined(CONFIG_E500) +#ifdef CONFIG_ADDR_MAP init_addr_map(); #endif |