diff options
Diffstat (limited to 'drivers/ddr/imx/imx9/ddr_init.c')
| -rw-r--r-- | drivers/ddr/imx/imx9/ddr_init.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/drivers/ddr/imx/imx9/ddr_init.c b/drivers/ddr/imx/imx9/ddr_init.c index 7cf1142f9a..17b4b259ac 100644 --- a/drivers/ddr/imx/imx9/ddr_init.c +++ b/drivers/ddr/imx/imx9/ddr_init.c @@ -197,6 +197,37 @@ void update_umctl2_rank_space_setting(unsigned int pstat_num) writel(tmp_t, REG_DDR_TIMING_CFG_4); } +void update_inline_ecc_setting(void) +{ + u32 val, sa, ea; + + val = readl(REG_DDR_CS0_BNDS); + if (val != 0) { + sa = (val >> 16) & 0xff; + ea = val & 0xff; + + /* 1/8 size is used for inline ecc */ + ea = ea - ((ea + 1 - sa) >> 3); + writel((sa << 16) | ea, REG_DDR_CS0_BNDS); + } + + val = readl(REG_DDR_CS1_BNDS); + if (val != 0) { + sa = (val >> 16) & 0xff; + ea = val & 0xff; + + /* 1/8 size is used for inline ecc */ + ea = ea - ((ea + 1 - sa) >> 3); + writel((sa << 16) | ea, REG_DDR_CS1_BNDS); + } + + /* Enable Inline ECC */ + setbits_le32(REG_DDR_ERR_EN, BIT(31) | BIT(30)); + + /* Enable data initialization */ + setbits_le32(REG_DDR_SDRAM_CFG2, BIT(4)); +} + int ddr_init(struct dram_timing_info *dram_timing) { unsigned int initial_drate; @@ -233,6 +264,10 @@ int ddr_init(struct dram_timing_info *dram_timing) update_umctl2_rank_space_setting(dram_timing->fsp_msg_num - 1); +#ifdef CONFIG_IMX9_DRAM_INLINE_ECC + update_inline_ecc_setting(); +#endif + #ifdef CONFIG_IMX9_DRAM_PM_COUNTER writel(0x200000, REG_DDR_DEBUG_19); #endif |