diff options
Diffstat (limited to 'board/data_modul/common/common.c')
| -rw-r--r-- | board/data_modul/common/common.c | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/board/data_modul/common/common.c b/board/data_modul/common/common.c index bf9a11472d..a6761c21d4 100644 --- a/board/data_modul/common/common.c +++ b/board/data_modul/common/common.c @@ -30,6 +30,8 @@ DECLARE_GLOBAL_DATA_PTR; #define WDOG_PAD_CTRL (PAD_CTL_DSE6 | PAD_CTL_ODE | PAD_CTL_PUE | PAD_CTL_PE) +#define DDRC_ECCCFG0_ECC_MODE_MASK 0x7 + u8 dmo_get_memcfg(void) { struct gpio_desc gpio[4]; @@ -58,8 +60,16 @@ u8 dmo_get_memcfg(void) int board_phys_sdram_size(phys_size_t *size) { u8 memcfg = dmo_get_memcfg(); + u8 ecc = 0; + + *size = 4ULL >> ((memcfg >> 1) & 0x3); + + if (IS_ENABLED(CONFIG_IMX8M_DRAM_INLINE_ECC)) { + /* 896 MiB, i.e. 1 GiB without 12.5% reserved for in-band ECC */ + ecc = readl(DDRC_ECCCFG0(0)) & DDRC_ECCCFG0_ECC_MODE_MASK; + } - *size = (4ULL >> ((memcfg >> 1) & 0x3)) * SZ_1G; + *size *= SZ_1G - (ecc ? (SZ_1G / 8) : 0); return 0; } @@ -100,6 +110,12 @@ static void spl_dram_init(struct dram_timing_info *dram_timing_info[8]) } ddr_init(dram_timing_info[memcfg]); + + if (IS_ENABLED(CONFIG_IMX8M_DRAM_INLINE_ECC)) { + printf("DDR: Inline ECC %sabled\n", + (readl(DDRC_ECCCFG0(0)) & DDRC_ECCCFG0_ECC_MODE_MASK) ? + "en" : "dis"); + } } void dmo_board_init_f(const iomux_v3_cfg_t wdog_pad, |