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| author |   Vasant Hegde <hegdevasant@linux.vnet.ibm.com> | 2013-10-24 16:04:58 +0530 |
|---|---|---|
| committer |   Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2013-10-30 16:12:02 +1100 |
| commit | 50bd6153d1a68354a0a0c8bca1fe949fa8875875 (patch) | |
| tree | 3bb5a63f30bfb162dbb17122ac0d6a3a51148adf /arch/powerpc/include | |
| parent | powerpc/powernv: Create opal sysfs directory (diff) | |
| download | linux-dev-50bd6153d1a68354a0a0c8bca1fe949fa8875875.tar.xz linux-dev-50bd6153d1a68354a0a0c8bca1fe949fa8875875.zip | |
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/include')
| -rw-r--r-- | arch/powerpc/include/asm/opal.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/opal.h b/arch/powerpc/include/asm/opal.h index ee0efd2f2abc..033c06be1d84 100644 --- a/arch/powerpc/include/asm/opal.h +++ b/arch/powerpc/include/asm/opal.h @@ -129,6 +129,9 @@ extern int opal_enter_rtas(struct rtas_args *args, #define OPAL_LPC_READ 67 #define OPAL_LPC_WRITE 68 #define OPAL_RETURN_CPU 69 +#define OPAL_FLASH_VALIDATE 76 +#define OPAL_FLASH_MANAGE 77 +#define OPAL_FLASH_UPDATE 78 #ifndef __ASSEMBLY__ @@ -724,6 +727,9 @@ int64_t opal_lpc_write(uint32_t chip_id, enum OpalLPCAddressType addr_type, uint32_t addr, uint32_t data, uint32_t sz); int64_t opal_lpc_read(uint32_t chip_id, enum OpalLPCAddressType addr_type, uint32_t addr, uint32_t *data, uint32_t sz); +int64_t opal_validate_flash(uint64_t buffer, uint32_t *size, uint32_t *result); +int64_t opal_manage_flash(uint8_t op); +int64_t opal_update_flash(uint64_t blk_list); /* Internal functions */ extern int early_init_dt_scan_opal(unsigned long node, const char *uname, int depth, void *data); @@ -752,6 +758,7 @@ extern int opal_set_rtc_time(struct rtc_time *tm); extern void opal_get_rtc_time(struct rtc_time *tm); extern unsigned long opal_get_boot_time(void); extern void opal_nvram_init(void); +extern void opal_flash_init(void); extern int opal_machine_check(struct pt_regs *regs); |