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authorTang Yuantian <yuantian.tang@freescale.com>2014-07-04 13:39:26 +0400
committerYork Sun <yorksun@freescale.com>2014-07-23 03:25:55 +0400
commit7cb7272365983e3a1eedf18a9f688c825e1cf95e (patch)
tree5ce567157d236767a0f05940045bf6f8c3c27ca3 /arch/powerpc/lib
parenta1399a918720337ad14053cf6185786aa33b58b2 (diff)
downloadu-boot-7cb7272365983e3a1eedf18a9f688c825e1cf95e.tar.xz
mpc85xx/t104x: Enable L2 and CPC cache when resume
When resume from deep sleep, uboot needs to enable L2 and CPC cache, or they would be keeping unusable in kernel because kernel didn't enble or initialized them. This patch didn't change the existing L2 cache enabling code, just put them in a function. Signed-off-by: Tang Yuantian <Yuantian.Tang@freescale.com> Reviewed-by: York Sun <yorksun@freescale.com>
Diffstat (limited to 'arch/powerpc/lib')
-rw-r--r--arch/powerpc/lib/board.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/powerpc/lib/board.c b/arch/powerpc/lib/board.c
index 300ab12a3b..50eb820336 100644
--- a/arch/powerpc/lib/board.c
+++ b/arch/powerpc/lib/board.c
@@ -370,6 +370,11 @@ void board_init_f(ulong bootflag)
#ifdef CONFIG_DEEP_SLEEP
/* Jump to kernel in deep sleep case */
if (in_be32(&gur->scrtsr[0]) & (1 << 3)) {
+ l2cache_init();
+#if defined(CONFIG_RAMBOOT_PBL)
+ disable_cpc_sram();
+#endif
+ enable_cpc();
start_addr = in_be32(&scfg->sparecr[1]);
kernel_resume = (func_t)start_addr;
kernel_resume();