diff options
| author | Shengzhou Liu <Shengzhou.Liu@nxp.com> | 2016-05-25 16:15:00 +0800 |
|---|---|---|
| committer | York Sun <york.sun@nxp.com> | 2016-06-03 14:12:49 -0700 |
| commit | d36740462a35aaaaa7e01e43c6ff666467070427 (patch) | |
| tree | d5d62683155dc54bb452dc1f1340f0ebfbac09c9 /drivers/ddr | |
| parent | b06f6f2f0347b6010943fa2ca2f26d1786fdba78 (diff) | |
driver/ddr/fsl: Check condition for erratum A-009803
Add condition of checking the enabled of address parity
for erratum A-009803, if parity is not enabled, the
workaround of erratum A-009803 should not be applied.
Signed-off-by: Shengzhou Liu <Shengzhou.Liu@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
Diffstat (limited to 'drivers/ddr')
| -rw-r--r-- | drivers/ddr/fsl/fsl_ddr_gen4.c | 42 |
1 files changed, 23 insertions, 19 deletions
diff --git a/drivers/ddr/fsl/fsl_ddr_gen4.c b/drivers/ddr/fsl/fsl_ddr_gen4.c index 5039f5de0a9..d37e2474c91 100644 --- a/drivers/ddr/fsl/fsl_ddr_gen4.c +++ b/drivers/ddr/fsl/fsl_ddr_gen4.c @@ -206,12 +206,14 @@ void fsl_ddr_set_memctl_regs(const fsl_ddr_cfg_regs_t *regs, #ifdef CONFIG_SYS_FSL_ERRATUM_A009803 /* part 1 of 2 */ - if (regs->ddr_sdram_cfg & SDRAM_CFG_RD_EN) { /* for RDIMM */ - ddr_out32(&ddr->ddr_sdram_rcw_2, - regs->ddr_sdram_rcw_2 & ~0x0f000000); + if (regs->ddr_sdram_cfg_2 & SDRAM_CFG2_AP_EN) { + if (regs->ddr_sdram_cfg & SDRAM_CFG_RD_EN) { /* for RDIMM */ + ddr_out32(&ddr->ddr_sdram_rcw_2, + regs->ddr_sdram_rcw_2 & ~0x0f000000); + } + ddr_out32(&ddr->err_disable, regs->err_disable | + DDR_ERR_DISABLE_APED); } - - ddr_out32(&ddr->err_disable, regs->err_disable | DDR_ERR_DISABLE_APED); #else ddr_out32(&ddr->err_disable, regs->err_disable); #endif @@ -395,22 +397,24 @@ step2: #endif /* CONFIG_SYS_FSL_ERRATUM_A008511 */ #ifdef CONFIG_SYS_FSL_ERRATUM_A009803 - /* if it's RDIMM */ - if (regs->ddr_sdram_cfg & SDRAM_CFG_RD_EN) { - for (i = 0; i < CONFIG_CHIP_SELECTS_PER_CTRL; i++) { - if (!(regs->cs[i].config & SDRAM_CS_CONFIG_EN)) - continue; - set_wait_for_bits_clear(&ddr->sdram_md_cntl, - MD_CNTL_MD_EN | - MD_CNTL_CS_SEL(i) | - 0x070000ed, - MD_CNTL_MD_EN); - udelay(1); + if (regs->ddr_sdram_cfg_2 & SDRAM_CFG2_AP_EN) { + /* if it's RDIMM */ + if (regs->ddr_sdram_cfg & SDRAM_CFG_RD_EN) { + for (i = 0; i < CONFIG_CHIP_SELECTS_PER_CTRL; i++) { + if (!(regs->cs[i].config & SDRAM_CS_CONFIG_EN)) + continue; + set_wait_for_bits_clear(&ddr->sdram_md_cntl, + MD_CNTL_MD_EN | + MD_CNTL_CS_SEL(i) | + 0x070000ed, + MD_CNTL_MD_EN); + udelay(1); + } } - } - ddr_out32(&ddr->err_disable, - regs->err_disable & ~DDR_ERR_DISABLE_APED); + ddr_out32(&ddr->err_disable, + regs->err_disable & ~DDR_ERR_DISABLE_APED); + } #endif } #endif |