Enable snooping for CAAM read & write transactions by
programming the SCFG snoop configuration register:
SCFG_SNPCNFGCR[SECRDSNP]
SCFG_SNPCNFGCR[SECWRSNP]
Signed-off-by: Horia Geantă <horia.gea...@freescale.com>
Reviewed-by: Zhengxiong Jin <jason....@freescale.com>
---
v2 - moved initialization in arch_cpu_init (instead of board_early_init_f),
as suggested by York.
arch/arm/cpu/armv7/ls102xa/cpu.c | 3 +++
arch/arm/include/asm/arch-ls102xa/immap_ls102xa.h | 1 +
2 files changed, 4 insertions(+)
diff --git a/arch/arm/cpu/armv7/ls102xa/cpu.c b/arch/arm/cpu/armv7/ls102xa/cpu.c
index 8dd95d98791d..0f10ed656af8 100644
--- a/arch/arm/cpu/armv7/ls102xa/cpu.c
+++ b/arch/arm/cpu/armv7/ls102xa/cpu.c
@@ -299,6 +299,7 @@ int arch_cpu_init(void)
void *epu_base = (void *)(CONFIG_SYS_DCSRBAR + EPU_BLOCK_OFFSET);
void *rcpm2_base =
(void *)(CONFIG_SYS_DCSRBAR + DCSR_RCPM2_BLOCK_OFFSET);
+ struct ccsr_scfg *scfg = (void *)CONFIG_SYS_FSL_SCFG_ADDR;
u32 state;
/*
@@ -326,6 +327,8 @@ int arch_cpu_init(void)
*/
fsl_epu_clean(epu_base);
+ setbits_be32(&scfg->snpcnfgcr, SCFG_SNPCNFGCR_SEC_RD_WR);
+
return 0;
}
diff --git a/arch/arm/include/asm/arch-ls102xa/immap_ls102xa.h
b/arch/arm/include/asm/arch-ls102xa/immap_ls102xa.h
index 60aa0d3b6f43..fbd06bafce31 100644
--- a/arch/arm/include/asm/arch-ls102xa/immap_ls102xa.h
+++ b/arch/arm/include/asm/arch-ls102xa/immap_ls102xa.h
@@ -144,6 +144,7 @@ struct ccsr_gur {
};
#define SCFG_ETSECDMAMCR_LE_BD_FR 0x00000c00
+#define SCFG_SNPCNFGCR_SEC_RD_WR 0xc0000000
#define SCFG_ETSECCMCR_GE2_CLK125 0x04000000
#define SCFG_ETSECCMCR_GE0_CLK125 0x00000000
#define SCFG_ETSECCMCR_GE1_CLK125 0x08000000
--
2.4.4
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