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| author | Poonam Aggrwal <poonam.aggrwal@freescale.com> | 2011-06-30 03:00:28 -0500 |
|---|---|---|
| committer | Kumar Gala <galak@kernel.crashing.org> | 2011-09-29 19:01:04 -0500 |
| commit | 42aee64bd95e91278cce6cfe1de8f1bfb2fd2005 (patch) | |
| tree | 8d0c9a4e56e9a9f4d0219fac524bb5910fbc7c9d | |
| parent | e8e6197ab2f94702446a7da95767ac8f22deeeda (diff) | |
| download | u-boot-imx-42aee64bd95e91278cce6cfe1de8f1bfb2fd2005.zip u-boot-imx-42aee64bd95e91278cce6cfe1de8f1bfb2fd2005.tar.gz u-boot-imx-42aee64bd95e91278cce6cfe1de8f1bfb2fd2005.tar.bz2 | |
fsl_ifc: Add the workaround for erratum IFC-A002769 (enable on P1010)
Issue:
The NOR-FCM does not support access to unaligned addresses for 16 bit port size
Impact:
When 16 bit port size is used, accesses not aligned to 16 bit address boundary
will result in incorrect data
Workaround:
The workaround is to switch to GPCM mode for NOR Flash access.
Signed-off-by: Poonam Aggrwal <poonam.aggrwal@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| -rw-r--r-- | arch/powerpc/cpu/mpc85xx/cmd_errata.c | 3 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/config_mpc85xx.h | 2 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/fsl_ifc.h | 5 |
3 files changed, 10 insertions, 0 deletions
diff --git a/arch/powerpc/cpu/mpc85xx/cmd_errata.c b/arch/powerpc/cpu/mpc85xx/cmd_errata.c index 7b9f773..446f759 100644 --- a/arch/powerpc/cpu/mpc85xx/cmd_errata.c +++ b/arch/powerpc/cpu/mpc85xx/cmd_errata.c @@ -87,6 +87,9 @@ static int do_errata(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) puts("Work-around for Erratum DDR111 enabled\n"); puts("Work-around for Erratum DDR134 enabled\n"); #endif +#ifdef CONFIG_SYS_FSL_ERRATUM_IFC_A002769 + puts("Work-around for Erratum IFC-A002769 enabled\n"); +#endif return 0; } diff --git a/arch/powerpc/include/asm/config_mpc85xx.h b/arch/powerpc/include/asm/config_mpc85xx.h index 691c075..f334645 100644 --- a/arch/powerpc/include/asm/config_mpc85xx.h +++ b/arch/powerpc/include/asm/config_mpc85xx.h @@ -112,6 +112,7 @@ #define CONFIG_SYS_CCSRBAR_DEFAULT 0xff700000 #define CONFIG_SYS_FSL_PCIE_COMPAT "fsl,qoriq-pcie-v2.2" #define CONFIG_SYS_FSL_USB_INTERNAL_UTMI_PHY +#define CONFIG_SYS_FSL_ERRATUM_IFC_A002769 /* P1011 is single core version of P1020 */ #elif defined(CONFIG_P1011) @@ -160,6 +161,7 @@ #define CONFIG_NUM_DDR_CONTROLLERS 1 #define CONFIG_SYS_CCSRBAR_DEFAULT 0xff700000 #define CONFIG_SYS_FSL_USB_INTERNAL_UTMI_PHY +#define CONFIG_SYS_FSL_ERRATUM_IFC_A002769 /* P1015 is single core version of P1024 */ #elif defined(CONFIG_P1015) diff --git a/arch/powerpc/include/asm/fsl_ifc.h b/arch/powerpc/include/asm/fsl_ifc.h index fb12363..7d95eb4 100644 --- a/arch/powerpc/include/asm/fsl_ifc.h +++ b/arch/powerpc/include/asm/fsl_ifc.h @@ -951,5 +951,10 @@ struct fsl_ifc { struct fsl_ifc_gpcm ifc_gpcm; }; +#ifdef CONFIG_SYS_FSL_ERRATUM_IFC_A002769 +#undef CSPR_MSEL_NOR +#define CSPR_MSEL_NOR CSPR_MSEL_GPCM +#endif + #endif /* __ASSEMBLY__ */ #endif /* __ASM_PPC_FSL_IFC_H */ |