diff options
| -rw-r--r-- | arch/arm/cpu/arm926ejs/spear/cpu.c | 34 | ||||
| -rw-r--r-- | arch/arm/include/asm/arch-spear/spr_misc.h | 1 |
2 files changed, 35 insertions, 0 deletions
diff --git a/arch/arm/cpu/arm926ejs/spear/cpu.c b/arch/arm/cpu/arm926ejs/spear/cpu.c index e39cdbaa6e..be0d14fbf0 100644 --- a/arch/arm/cpu/arm926ejs/spear/cpu.c +++ b/arch/arm/cpu/arm926ejs/spear/cpu.c @@ -83,3 +83,37 @@ int print_cpuinfo(void) return 0; } #endif + +#if !defined(CONFIG_SPL_BUILD) && defined(CONFIG_NAND_ECC_BCH) +static int do_switch_ecc(cmd_tbl_t *cmdtp, int flag, int argc, + char *const argv[]) +{ + if (argc != 2) + goto usage; + + if (strncmp(argv[1], "hw", 2) == 0) { + /* 1-bit HW ECC */ + printf("Switching to 1-bit HW ECC\n"); + fsmc_nand_switch_ecc(1); + } else if (strncmp(argv[1], "bch4", 2) == 0) { + /* 4-bit SW ECC BCH4 */ + printf("Switching to 4-bit SW ECC (BCH4)\n"); + fsmc_nand_switch_ecc(4); + } else { + goto usage; + } + + return 0; + +usage: + printf("Usage: nandecc %s\n", cmdtp->usage); + return 1; +} + +U_BOOT_CMD( + nandecc, 2, 0, do_switch_ecc, + "switch NAND ECC calculation algorithm", + "hw|bch4 - Switch between NAND hardware 1-bit HW and" + " 4-bit SW BCH\n" +); +#endif diff --git a/arch/arm/include/asm/arch-spear/spr_misc.h b/arch/arm/include/asm/arch-spear/spr_misc.h index b55026ecdf..6f2e19ed61 100644 --- a/arch/arm/include/asm/arch-spear/spr_misc.h +++ b/arch/arm/include/asm/arch-spear/spr_misc.h @@ -253,5 +253,6 @@ struct misc_regs { #define SOC_SPEAR320 203 extern int get_socrev(void); +int fsmc_nand_switch_ecc(uint32_t eccstrength); #endif |