[U-Boot] [PATCH] powerpc/corenet: CPC1 speculation disable

shh.xie at gmail.com
2013-11-28T06:58:08Z

From: Dave Liu <daveliu@freescale.com>

In PBL RAMBOOT(SPI/SD/NAND boot) mode, CPC1 used as SRAM, should disable
CPC1 speculation and keep it till relocation. Otherwise, speculation
transactions will go to DDR controller, it will cause problem.

Signed-off-by: Dave Liu <daveliu@freescale.com>
Signed-off-by: Shaohui Xie <Shaohui.Xie@freescale.com>
---
arch/powerpc/cpu/mpc85xx/start.S | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/arch/powerpc/cpu/mpc85xx/start.S b/arch/powerpc/cpu/mpc85xx/start.S
index 6a81fa7..db84d10 100644
--- a/arch/powerpc/cpu/mpc85xx/start.S
+++ b/arch/powerpc/cpu/mpc85xx/start.S
@@ -886,7 +886,11 @@ delete_ccsr_l2_tlb:
erratum_set_dcsr 0xb0008 0x00900000
erratum_set_dcsr 0xb0e40 0xe00a0000
erratum_set_ccsr 0x18600 CONFIG_SYS_FSL_CORENET_SNOOPVEC_COREONLY
+#ifdef CONFIG_RAMBOOT_PBL
+ erratum_set_ccsr 0x10f00 0x495e5000
+#else
erratum_set_ccsr 0x10f00 0x415e5000
+#endif
erratum_set_ccsr 0x11f00 0x415e5000

/* Make temp mapping uncacheable again, if it was initially */
--
1.8.0