| Message ID | 1296343230-11731-2-git-send-email-galak@kernel.crashing.org |
|---|---|
| State | Accepted |
| Commit | 5103a03a0be2fd1a5270046d9f2bc77916e33a56 |
| Delegated to: | Kumar Gala |
| Headers | show |
On Jan 29, 2011, at 5:20 PM, Kumar Gala wrote: > Data timeout counter (SYSCTL[DTOCV]) is not reliable for values of 4, 8, > and 12. Program one more than the desired value: 4 -> 5, 8 -> 9, 12 -> 13. > > Signed-off-by: Kumar Gala <galak@kernel.crashing.org> > --- > arch/powerpc/cpu/mpc85xx/cmd_errata.c | 3 +++ > arch/powerpc/include/asm/config_mpc85xx.h | 2 ++ > drivers/mmc/fsl_esdhc.c | 5 +++++ > 3 files changed, 10 insertions(+), 0 deletions(-) applied to 85xx - k
diff --git a/arch/powerpc/cpu/mpc85xx/cmd_errata.c b/arch/powerpc/cpu/mpc85xx/cmd_errata.c index 0cc8b1e..4f8134b 100644 --- a/arch/powerpc/cpu/mpc85xx/cmd_errata.c +++ b/arch/powerpc/cpu/mpc85xx/cmd_errata.c @@ -59,6 +59,9 @@ static int do_errata(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) #if defined(CONFIG_SYS_FSL_ERRATUM_ESDHC136) puts("Work-around for Erratum ESDHC136 enabled\n"); #endif +#if defined(CONFIG_SYS_FSL_ERRATUM_ESDHC_A001) + puts("Work-around for Erratum ESDHC-A001 enabled\n"); +#endif #ifdef CONFIG_SYS_FSL_ERRATUM_CPC_A002 puts("Work-around for Erratum CPC-A002 enabled\n"); #endif diff --git a/arch/powerpc/include/asm/config_mpc85xx.h b/arch/powerpc/include/asm/config_mpc85xx.h index 4e515ff..a403208 100644 --- a/arch/powerpc/include/asm/config_mpc85xx.h +++ b/arch/powerpc/include/asm/config_mpc85xx.h @@ -131,12 +131,14 @@ #define CONFIG_SYS_FSL_NUM_LAWS 12 #define CONFIG_SYS_FSL_SEC_COMPAT 2 #define CONFIG_SYS_FSL_ERRATUM_ESDHC111 +#define CONFIG_SYS_FSL_ERRATUM_ESDHC_A001 #elif defined(CONFIG_P2020) #define CONFIG_MAX_CPUS 2 #define CONFIG_SYS_FSL_NUM_LAWS 12 #define CONFIG_SYS_FSL_SEC_COMPAT 2 #define CONFIG_SYS_FSL_ERRATUM_ESDHC111 +#define CONFIG_SYS_FSL_ERRATUM_ESDHC_A001 #elif defined(CONFIG_PPC_P2040) #define CONFIG_MAX_CPUS 4 diff --git a/drivers/mmc/fsl_esdhc.c b/drivers/mmc/fsl_esdhc.c index d01c926..f3cccbe 100644 --- a/drivers/mmc/fsl_esdhc.c +++ b/drivers/mmc/fsl_esdhc.c @@ -219,6 +219,11 @@ static int esdhc_setup_data(struct mmc *mmc, struct mmc_data *data) if (timeout < 0) timeout = 0; +#ifdef CONFIG_SYS_FSL_ERRATUM_ESDHC_A001 + if ((timeout == 4) || (timeout == 8) || (timeout == 12)) + timeout++; +#endif + esdhc_clrsetbits32(®s->sysctl, SYSCTL_TIMEOUT_MASK, timeout << 16); return 0;
Data timeout counter (SYSCTL[DTOCV]) is not reliable for values of 4, 8, and 12. Program one more than the desired value: 4 -> 5, 8 -> 9, 12 -> 13. Signed-off-by: Kumar Gala <galak@kernel.crashing.org> --- arch/powerpc/cpu/mpc85xx/cmd_errata.c | 3 +++ arch/powerpc/include/asm/config_mpc85xx.h | 2 ++ drivers/mmc/fsl_esdhc.c | 5 +++++ 3 files changed, 10 insertions(+), 0 deletions(-)