diff options
| -rw-r--r-- | arch/powerpc/include/asm/fsl_law.h | 1 | ||||
| -rw-r--r-- | drivers/misc/fsl_law.c | 125 |
2 files changed, 49 insertions, 77 deletions
diff --git a/arch/powerpc/include/asm/fsl_law.h b/arch/powerpc/include/asm/fsl_law.h index 34c56a259a6..12ba1a6a041 100644 --- a/arch/powerpc/include/asm/fsl_law.h +++ b/arch/powerpc/include/asm/fsl_law.h @@ -47,6 +47,7 @@ enum law_size { }; #define law_size_bits(sz) (__ilog2_u64(sz) - 1) +#define lawar_size(x) (1ULL << ((x & 0x3f) + 1)) #ifdef CONFIG_FSL_CORENET enum law_trgt_if { diff --git a/drivers/misc/fsl_law.c b/drivers/misc/fsl_law.c index 8255175d2a0..9688888c882 100644 --- a/drivers/misc/fsl_law.c +++ b/drivers/misc/fsl_law.c @@ -50,86 +50,61 @@ DECLARE_GLOBAL_DATA_PTR; #endif #ifdef CONFIG_FSL_CORENET -void set_law(u8 idx, phys_addr_t addr, enum law_size sz, enum law_trgt_if id) -{ - volatile ccsr_local_t *ccm = (void *)(CONFIG_SYS_FSL_CORENET_CCM_ADDR); - - gd->used_laws |= (1 << idx); - - out_be32(&ccm->law[idx].lawar, 0); - out_be32(&ccm->law[idx].lawbarh, ((u64)addr >> 32)); - out_be32(&ccm->law[idx].lawbarl, addr & 0xffffffff); - out_be32(&ccm->law[idx].lawar, LAW_EN | ((u32)id << 20) | (u32)sz); +#define LAW_BASE (CONFIG_SYS_FSL_CORENET_CCM_ADDR) +#define LAWAR_ADDR(x) (&((ccsr_local_t *)LAW_BASE)->law[x].lawar) +#define LAWBARH_ADDR(x) (&((ccsr_local_t *)LAW_BASE)->law[x].lawbarh) +#define LAWBARL_ADDR(x) (&((ccsr_local_t *)LAW_BASE)->law[x].lawbarl) +#define LAWBAR_SHIFT 0 +#else +#define LAW_BASE (CONFIG_SYS_IMMR + 0xc08) +#define LAWAR_ADDR(x) ((u32 *)LAW_BASE + 8 * x + 2) +#define LAWBAR_ADDR(x) ((u32 *)LAW_BASE + 8 * x) +#define LAWBAR_SHIFT 12 +#endif - /* Read back so that we sync the writes */ - in_be32(&ccm->law[idx].lawar); -} -void disable_law(u8 idx) +static inline phys_addr_t get_law_base_addr(int idx) { - volatile ccsr_local_t *ccm = (void *)(CONFIG_SYS_FSL_CORENET_CCM_ADDR); - - gd->used_laws &= ~(1 << idx); - - out_be32(&ccm->law[idx].lawar, 0); - out_be32(&ccm->law[idx].lawbarh, 0); - out_be32(&ccm->law[idx].lawbarl, 0); - - /* Read back so that we sync the writes */ - in_be32(&ccm->law[idx].lawar); - - return; +#ifdef CONFIG_FSL_CORENET + return (phys_addr_t) + ((u64)in_be32(LAWBARH_ADDR(idx)) << 32) | + in_be32(LAWBARL_ADDR(idx)); +#else + return (phys_addr_t)in_be32(LAWBAR_ADDR(idx)) << LAWBAR_SHIFT; +#endif } -#ifndef CONFIG_NAND_SPL -static int get_law_entry(u8 i, struct law_entry *e) +static inline void set_law_base_addr(int idx, phys_addr_t addr) { - volatile ccsr_local_t *ccm = (void *)(CONFIG_SYS_FSL_CORENET_CCM_ADDR); - u32 lawar; - - lawar = in_be32(&ccm->law[i].lawar); - - if (!(lawar & LAW_EN)) - return 0; - - e->addr = ((u64)in_be32(&ccm->law[i].lawbarh) << 32) | - in_be32(&ccm->law[i].lawbarl); - e->size = lawar & 0x3f; - e->trgt_id = (lawar >> 20) & 0xff; - - return 1; -} -#endif +#ifdef CONFIG_FSL_CORENET + out_be32(LAWBARL_ADDR(idx), addr & 0xffffffff); + out_be32(LAWBARH_ADDR(idx), (u64)addr >> 32); #else + out_be32(LAWBAR_ADDR(idx), addr >> LAWBAR_SHIFT); +#endif +} + void set_law(u8 idx, phys_addr_t addr, enum law_size sz, enum law_trgt_if id) { - volatile u32 *base = (volatile u32 *)(CONFIG_SYS_IMMR + 0xc08); - volatile u32 *lawbar = base + 8 * idx; - volatile u32 *lawar = base + 8 * idx + 2; - gd->used_laws |= (1 << idx); - out_be32(lawar, 0); - out_be32(lawbar, addr >> 12); - out_be32(lawar, LAW_EN | ((u32)id << 20) | (u32)sz); + out_be32(LAWAR_ADDR(idx), 0); + set_law_base_addr(idx, addr); + out_be32(LAWAR_ADDR(idx), LAW_EN | ((u32)id << 20) | (u32)sz); /* Read back so that we sync the writes */ - in_be32(lawar); + in_be32(LAWAR_ADDR(idx)); } void disable_law(u8 idx) { - volatile u32 *base = (volatile u32 *)(CONFIG_SYS_IMMR + 0xc08); - volatile u32 *lawbar = base + 8 * idx; - volatile u32 *lawar = base + 8 * idx + 2; - gd->used_laws &= ~(1 << idx); - out_be32(lawar, 0); - out_be32(lawbar, 0); + out_be32(LAWAR_ADDR(idx), 0); + set_law_base_addr(idx, 0); /* Read back so that we sync the writes */ - in_be32(lawar); + in_be32(LAWAR_ADDR(idx)); return; } @@ -137,24 +112,20 @@ void disable_law(u8 idx) #ifndef CONFIG_NAND_SPL static int get_law_entry(u8 i, struct law_entry *e) { - volatile u32 *base = (volatile u32 *)(CONFIG_SYS_IMMR + 0xc08); - volatile u32 *lawbar = base + 8 * i; - volatile u32 *lawar = base + 8 * i + 2; - u32 temp; + u32 lawar; - temp = in_be32(lawar); + lawar = in_be32(LAWAR_ADDR(i)); - if (!(temp & LAW_EN)) + if (!(lawar & LAW_EN)) return 0; - e->addr = (u64)in_be32(lawbar) << 12; - e->size = temp & 0x3f; - e->trgt_id = (temp >> 20) & 0xff; + e->addr = get_law_base_addr(i); + e->size = lawar & 0x3f; + e->trgt_id = (lawar >> 20) & 0xff; return 1; } #endif -#endif int set_next_law(phys_addr_t addr, enum law_size sz, enum law_trgt_if id) { @@ -216,17 +187,17 @@ struct law_entry find_law(phys_addr_t addr) void print_laws(void) { - volatile u32 *base = (volatile u32 *)(CONFIG_SYS_IMMR + 0xc08); - volatile u32 *lawbar = base; - volatile u32 *lawar = base + 2; int i; + u32 lawar; printf("\nLocal Access Window Configuration\n"); - for(i = 0; i < FSL_HW_NUM_LAWS; i++) { - printf("\tLAWBAR%d : 0x%08x, LAWAR%d : 0x%08x\n", - i, in_be32(lawbar), i, in_be32(lawar)); - lawbar += 8; - lawar += 8; + for (i = 0; i < FSL_HW_NUM_LAWS; i++) { + lawar = in_be32(LAWAR_ADDR(i)); + printf("LAWBAR%02d: 0x%08x", i, in_be32(LAWBAR_ADDR(i))); + printf(" LAWAR0x%02d: 0x%08x\n", i, lawar); + printf("\t(EN: %d TGT: 0x%02x SIZE: ", + (lawar & LAW_EN) ? 1 : 0, (lawar >> 20) & 0xff); + print_size(lawar_size(lawar), ")\n"); } return; |