mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-10 15:14:43 +00:00
arm/ls1021a: Add workaround for DDR erratum A008378
Internal memory controller counters can reach a bad state after training in DDR4 mode if accumulated ECC or DBI mode is eanbled. Signed-off-by: York Sun <yorksun@freescale.com>
This commit is contained in:
parent
37b608a52d
commit
dda3b610ee
3 changed files with 15 additions and 0 deletions
|
@ -97,6 +97,7 @@
|
|||
#define CONFIG_SYS_FSL_DDR_VER FSL_DDR_VER_5_0
|
||||
#define CONFIG_SYS_FSL_SEC_COMPAT 5
|
||||
#define CONFIG_USB_MAX_CONTROLLER_COUNT 1
|
||||
#define CONFIG_SYS_FSL_ERRATUM_A008378
|
||||
#else
|
||||
#error SoC not defined
|
||||
#endif
|
||||
|
|
|
@ -171,6 +171,14 @@ void fsl_ddr_set_memctl_regs(const fsl_ddr_cfg_regs_t *regs,
|
|||
ddr_out32(&ddr->debug[i], regs->debug[i]);
|
||||
}
|
||||
}
|
||||
#ifdef CONFIG_SYS_FSL_ERRATUM_A008378
|
||||
/* Erratum applies when accumulated ECC is used, or DBI is enabled */
|
||||
#define IS_ACC_ECC_EN(v) ((v) & 0x4)
|
||||
#define IS_DBI(v) ((((v) >> 12) & 0x3) == 0x2)
|
||||
if (IS_ACC_ECC_EN(regs->ddr_sdram_cfg) ||
|
||||
IS_DBI(regs->ddr_sdram_cfg_3))
|
||||
ddr_setbits32(ddr->debug[28], 0x9 << 20);
|
||||
#endif
|
||||
|
||||
/*
|
||||
* For RDIMMs, JEDEC spec requires clocks to be stable before reset is
|
||||
|
|
|
@ -23,9 +23,15 @@
|
|||
#ifdef CONFIG_SYS_FSL_DDR_LE
|
||||
#define ddr_in32(a) in_le32(a)
|
||||
#define ddr_out32(a, v) out_le32(a, v)
|
||||
#define ddr_setbits32(a, v) setbits_le32(a, v)
|
||||
#define ddr_clrbits32(a, v) clrbits_le32(a, v)
|
||||
#define ddr_clrsetbits32(a, clear, set) clrsetbits_le32(a, clear, set)
|
||||
#else
|
||||
#define ddr_in32(a) in_be32(a)
|
||||
#define ddr_out32(a, v) out_be32(a, v)
|
||||
#define ddr_setbits32(a, v) setbits_be32(a, v)
|
||||
#define ddr_clrbits32(a, v) clrbits_be32(a, v)
|
||||
#define ddr_clrsetbits32(a, clear, set) clrsetbits_be32(a, clear, set)
|
||||
#endif
|
||||
|
||||
#define _DDR_ADDR CONFIG_SYS_FSL_DDR_ADDR
|
||||
|
|
Loading…
Reference in a new issue