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| author | Vasant Hegde <hegdevasant@linux.vnet.ibm.com> | 2013-10-24 10:34:58 (GMT) |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2013-10-30 05:12:02 (GMT) |
| commit | 50bd6153d1a68354a0a0c8bca1fe949fa8875875 (patch) | |
| tree | 3bb5a63f30bfb162dbb17122ac0d6a3a51148adf /arch/powerpc/platforms/powernv/opal-wrappers.S | |
| parent | 6f68b5e2c6c04e9cf0e3074f884da36957ce9aae (diff) | |
| download | linux-50bd6153d1a68354a0a0c8bca1fe949fa8875875.tar.xz | |
powerpc/powernv: Code update interface
Code update interface for powernv platform. This provides
sysfs interface to pass new image, validate, update and
commit images.
This patch includes:
- Below OPAL APIs for code update
- opal_validate_flash()
- opal_manage_flash()
- opal_update_flash()
- Create below sysfs files under /sys/firmware/opal
- image : Interface to pass new FW image
- validate_flash : Validate candidate image
- manage_flash : Commit/Reject operations
- update_flash : Flash new candidate image
Updating Image:
"update_flash" is an interface to indicate flash new FW.
It just passes image SG list to FW. Actual flashing is done
during system reboot time.
Note:
- SG entry format:
I have kept version number to keep this list similar to what
PAPR is defined.
Signed-off-by: Vasant Hegde <hegdevasant@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/platforms/powernv/opal-wrappers.S')
| -rw-r--r-- | arch/powerpc/platforms/powernv/opal-wrappers.S | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/powernv/opal-wrappers.S b/arch/powerpc/platforms/powernv/opal-wrappers.S index 403d058..e780650 100644 --- a/arch/powerpc/platforms/powernv/opal-wrappers.S +++ b/arch/powerpc/platforms/powernv/opal-wrappers.S @@ -123,3 +123,6 @@ OPAL_CALL(opal_xscom_write, OPAL_XSCOM_WRITE); OPAL_CALL(opal_lpc_read, OPAL_LPC_READ); OPAL_CALL(opal_lpc_write, OPAL_LPC_WRITE); OPAL_CALL(opal_return_cpu, OPAL_RETURN_CPU); +OPAL_CALL(opal_validate_flash, OPAL_FLASH_VALIDATE); +OPAL_CALL(opal_manage_flash, OPAL_FLASH_MANAGE); +OPAL_CALL(opal_update_flash, OPAL_FLASH_UPDATE); |