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| author | Liu Gang <Gang.Liu@freescale.com> | 2012-03-08 00:33:20 +0000 |
|---|---|---|
| committer | Andy Fleming <afleming@freescale.com> | 2012-04-24 23:58:33 -0500 |
| commit | 0a85a9e70593a9cd90fbbbdaad8443e31a9dd5a3 (patch) | |
| tree | 661a5f2efc24df9044e7eb6e4e84234445ffa04c /include/configs/corenet_ds.h | |
| parent | 3f1af81b80576bb696cc0ea2169541ee13902ce0 (diff) | |
| download | blackbird-obmc-uboot-0a85a9e70593a9cd90fbbbdaad8443e31a9dd5a3.tar.gz blackbird-obmc-uboot-0a85a9e70593a9cd90fbbbdaad8443e31a9dd5a3.zip | |
powerpc/corenet_ds: Slave reads ENV from master when boot from SRIO
When boot from SRIO, slave's ENV can be stored in master's memory space,
then slave can fetch the ENV through SRIO interface.
NOTE: Because the slave can not erase, write master's NOR flash by SRIO
interface, so it can not modify the ENV parameters stored in
master's NOR flash using "saveenv" or other commands.
Master needs to:
1. Put the slave's ENV into it's own memory space.
2. Set an inbound SRIO window covered slave's ENV stored in master's
memory space.
Slave needs to:
1. Set a specific TLB entry in order to fetch ucode and ENV from master.
2. Set a LAW entry with the TargetID SRIO1 or SRIO2 for ucode and ENV.
Signed-off-by: Liu Gang <Gang.Liu@freescale.com>
Signed-off-by: Shaohui Xie <Shaohui.Xie@freescale.com>
Diffstat (limited to 'include/configs/corenet_ds.h')
| -rw-r--r-- | include/configs/corenet_ds.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/include/configs/corenet_ds.h b/include/configs/corenet_ds.h index 093c2c04b1..aa8b384d66 100644 --- a/include/configs/corenet_ds.h +++ b/include/configs/corenet_ds.h @@ -77,7 +77,9 @@ #define CONFIG_ENV_OVERWRITE #ifdef CONFIG_SYS_NO_FLASH +#ifndef CONFIG_SRIOBOOT_SLAVE #define CONFIG_ENV_IS_NOWHERE +#endif #else #define CONFIG_FLASH_CFI_DRIVER #define CONFIG_SYS_FLASH_CFI @@ -106,6 +108,10 @@ #define CONFIG_ENV_IS_IN_NAND #define CONFIG_ENV_SIZE CONFIG_SYS_NAND_BLOCK_SIZE #define CONFIG_ENV_OFFSET (5 * CONFIG_SYS_NAND_BLOCK_SIZE) +#elif defined(CONFIG_SRIOBOOT_SLAVE) +#define CONFIG_ENV_IS_IN_REMOTE +#define CONFIG_ENV_ADDR 0xffe20000 +#define CONFIG_ENV_SIZE 0x2000 #elif defined(CONFIG_ENV_IS_NOWHERE) #define CONFIG_ENV_SIZE 0x2000 #else @@ -406,6 +412,13 @@ #define CONFIG_SRIOBOOT_SLAVE_UCODE_LAW_PHYS 0xfef020000ull #define CONFIG_SRIOBOOT_SLAVE_UCODE_SRIO_PHYS 0x3ffe00000ull #define CONFIG_SRIOBOOT_SLAVE_UCODE_SIZE 0x10000 /* 64K */ +/* + * for slave ENV instored in master memory space, + * PHYS must be aligned based on the SIZE + */ +#define CONFIG_SRIOBOOT_SLAVE_ENV_LAW_PHYS 0xfef060000ull +#define CONFIG_SRIOBOOT_SLAVE_ENV_SRIO_PHYS 0x3ffe20000ull +#define CONFIG_SRIOBOOT_SLAVE_ENV_SIZE 0x20000 /* 128K */ #endif /* |
