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| author | Steven A. Falco <sfalco@harris.com> | 2011-05-05 10:08:35 -0400 |
|---|---|---|
| committer | Stefan Roese <sr@denx.de> | 2011-05-12 16:10:51 +0200 |
| commit | 644362c40aa8d356d2cc0d230ce0c3bad279c23c (patch) | |
| tree | 2f13f72006f88a509749e804bbc08864bb031f3e /arch/powerpc/include/asm/processor.h | |
| parent | 264eaa0ea967bac32214b87d60cfc86c8b22cac6 (diff) | |
| download | u-boot-imx-644362c40aa8d356d2cc0d230ce0c3bad279c23c.zip u-boot-imx-644362c40aa8d356d2cc0d230ce0c3bad279c23c.tar.gz u-boot-imx-644362c40aa8d356d2cc0d230ce0c3bad279c23c.tar.bz2 | |
PPC405EX CHIP_21 erratum
APM errata CHIP_21 for the 405EX/EXr (from the rev 1.09 document dated
4/27/11) states that rev D processors may wake up with the wrong feature
set. This patch implements the APM-proposed workaround.
To enable this patch for your board, add the appropriate define for your
CPU to your board header file. See kilauea.h for more information. The
following variants are supported:
#define CONFIG_SYS_4xx_CHIP_21_405EX_NO_SECURITY
#define CONFIG_SYS_4xx_CHIP_21_405EX_SECURITY
#define CONFIG_SYS_4xx_CHIP_21_405EXr_NO_SECURITY
#define CONFIG_SYS_4xx_CHIP_21_405EXr_SECURITY
Please note that if you select the wrong define, your board will not
boot, and JTAG will be required to recover.
Tested on custom boards using:
CONFIG_SYS_4xx_CHIP_21_405EX_NO_SECURITY <sfalco@harris.com>
CONFIG_SYS_4xx_CHIP_21_405EX_SECURITY <eibach@gdsys.de>
Signed-off-by: Steve Falco <sfalco@harris.com>
Acked-by: Dirk Eibach <eibach@gdsys.de>
Signed-off-by: Stefan Roese <sr@denx.de>
Diffstat (limited to 'arch/powerpc/include/asm/processor.h')
| -rw-r--r-- | arch/powerpc/include/asm/processor.h | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/processor.h b/arch/powerpc/include/asm/processor.h index f5bf4dd..c5b03b4 100644 --- a/arch/powerpc/include/asm/processor.h +++ b/arch/powerpc/include/asm/processor.h @@ -974,6 +974,37 @@ #define PVR_5200B 0x80822014 /* + * 405EX/EXr CHIP_21 Errata + */ +#ifdef CONFIG_SYS_4xx_CHIP_21_405EX_SECURITY +#define CONFIG_SYS_4xx_CHIP_21_ERRATA +#define CONFIG_405EX_CHIP21_PVR_REV_C PVR_405EX1_RC +#define CONFIG_405EX_CHIP21_PVR_REV_D PVR_405EX1_RD +#define CONFIG_405EX_CHIP21_ECID3_REV_D 0x0 +#endif + +#ifdef CONFIG_SYS_4xx_CHIP_21_405EX_NO_SECURITY +#define CONFIG_SYS_4xx_CHIP_21_ERRATA +#define CONFIG_405EX_CHIP21_PVR_REV_C PVR_405EX2_RC +#define CONFIG_405EX_CHIP21_PVR_REV_D PVR_405EX2_RD +#define CONFIG_405EX_CHIP21_ECID3_REV_D 0x1 +#endif + +#ifdef CONFIG_SYS_4xx_CHIP_21_405EXr_SECURITY +#define CONFIG_SYS_4xx_CHIP_21_ERRATA +#define CONFIG_405EX_CHIP21_PVR_REV_C PVR_405EXR1_RC +#define CONFIG_405EX_CHIP21_PVR_REV_D PVR_405EXR1_RD +#define CONFIG_405EX_CHIP21_ECID3_REV_D 0x2 +#endif + +#ifdef CONFIG_SYS_4xx_CHIP_21_405EXr_NO_SECURITY +#define CONFIG_SYS_4xx_CHIP_21_ERRATA +#define CONFIG_405EX_CHIP21_PVR_REV_C PVR_405EXR2_RC +#define CONFIG_405EX_CHIP21_PVR_REV_D PVR_405EXR2_RD +#define CONFIG_405EX_CHIP21_ECID3_REV_D 0x3 +#endif + +/* * System Version Register */ |