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| author | Stefan Roese <sr@denx.de> | 2010-04-28 10:47:36 +0200 |
|---|---|---|
| committer | Wolfgang Denk <wd@denx.de> | 2010-05-06 23:28:48 +0200 |
| commit | e4a95d112e5ea8368bfbdac6ff963d1b8dc63cf0 (patch) | |
| tree | afafdc9c765ed256552b8e852813624ee56f6307 /arch/powerpc/cpu/ppc4xx/commproc.c | |
| parent | 7b2afd93818f81ad817825020a8c45c633559e77 (diff) | |
| download | u-boot-imx-e4a95d112e5ea8368bfbdac6ff963d1b8dc63cf0.zip u-boot-imx-e4a95d112e5ea8368bfbdac6ff963d1b8dc63cf0.tar.gz u-boot-imx-e4a95d112e5ea8368bfbdac6ff963d1b8dc63cf0.tar.bz2 | |
powerpc: Consolidate bootcount_{store|load} for PowerPC
This patch consolidates bootcount_{store|load} for PowerPC by
implementing a common version in arch/powerpc/lib/bootcount.c. This
code is now used by all PowerPC variants that currently have these
functions implemented.
The functions now use the proper IO-accessor functions to read/write the
values.
This code also supports two different bootcount versions:
a) Use 2 separate words (2 * 32bit) to store the bootcounter
b) Use only 1 word (2 * 16bit) to store the bootcounter
Version b) was already used by MPC5xxx.
Signed-off-by: Stefan Roese <sr@denx.de>
Acked-by: Detlev Zundel <dzu@denx.de>
Acked-by: Kim Phillips <kim.phillips@freescale.com>
for 83xx parts
Cc: Michael Zaidman <michael.zaidman@gmail.com>
Cc: Wolfgang Denk <wd@denx.de>
Cc: Kim Phillips <kim.phillips@freescale.com>
Cc: Anatolij Gustschin <agust@denx.de>
Diffstat (limited to 'arch/powerpc/cpu/ppc4xx/commproc.c')
| -rw-r--r-- | arch/powerpc/cpu/ppc4xx/commproc.c | 24 |
1 files changed, 0 insertions, 24 deletions
diff --git a/arch/powerpc/cpu/ppc4xx/commproc.c b/arch/powerpc/cpu/ppc4xx/commproc.c index a1696d3..6bf95e6 100644 --- a/arch/powerpc/cpu/ppc4xx/commproc.c +++ b/arch/powerpc/cpu/ppc4xx/commproc.c @@ -51,27 +51,3 @@ ulong post_word_load (void) } #endif /* CONFIG_POST || CONFIG_LOGBUFFER*/ - -#ifdef CONFIG_BOOTCOUNT_LIMIT - -void bootcount_store (ulong a) -{ - volatile ulong *save_addr = - (volatile ulong *)(CONFIG_SYS_OCM_DATA_ADDR + CONFIG_SYS_BOOTCOUNT_ADDR); - - save_addr[0] = a; - save_addr[1] = BOOTCOUNT_MAGIC; -} - -ulong bootcount_load (void) -{ - volatile ulong *save_addr = - (volatile ulong *)(CONFIG_SYS_OCM_DATA_ADDR + CONFIG_SYS_BOOTCOUNT_ADDR); - - if (save_addr[1] != BOOTCOUNT_MAGIC) - return 0; - else - return save_addr[0]; -} - -#endif /* CONFIG_BOOTCOUNT_LIMIT */ |