leandrof/u-boot
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

fsl_esdhc: Add the workaround for erratum ESDHC136 (enable on P4080)

Browse Source 
False multi-bit ECC errors will be reported by the eSDHC buffer which
can trigger a reset request.

We disable all ECC error checking on SDHC.

Signed-off-by: Roy Zang <tie-fei.zang@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
This commit is contained in:
Roy Zang 2011-01-07 00:24:27 -06:00 committed by Kumar Gala
parent 3b4456ec39
commit ae026ffd1e
3 changed files with 12 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
arch/powerpc/cpu/mpc85xx/cmd_errata.c
View File

@ -55,6 +55,9 @@ static int do_errata(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
#endif
#if defined(CONFIG_SYS_FSL_ERRATUM_ESDHC135)
puts("Work-around for Erratum ESDHC135 enabled\n");
#endif
#if defined(CONFIG_SYS_FSL_ERRATUM_ESDHC136)
puts("Work-around for Erratum ESDHC136 enabled\n");
#endif
return 0;
}

8
arch/powerpc/cpu/mpc85xx/cpu_init.c
View File

@ -394,6 +394,14 @@ int cpu_init_r(void)
setup_mp();
#endif
#ifdef CONFIG_SYS_FSL_ERRATUM_ESDHC136
{
void *p;
p = (void *)CONFIG_SYS_DCSRBAR + 0x20520;
setbits_be32(p, 1 << (31 - 14));
}
#endif
#ifdef CONFIG_SYS_LBC_LCRR
/*
* Modify the CLKDIV field of LCRR register to improve the writing

1
include/configs/P4080DS.h
View File

@ -37,6 +37,7 @@
#define CONFIG_SYS_FSL_ERRATUM_ESDHC111
#define CONFIG_SYS_FSL_ERRATUM_ESDHC135
#define CONFIG_SYS_FSL_ERRATUM_ESDHC136
#define CONFIG_SYS_P4080_ERRATUM_CPU22
#define CONFIG_SYS_P4080_ERRATUM_SERDES8