[U-Boot] [PATCH] arm: ls102xa: enable snooping for CAAM transactions

[Horia Geantă]

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>
---
 arch/arm/include/asm/arch-ls102xa/immap_ls102xa.h | 1 +
 board/freescale/ls1021aqds/ls1021aqds.c           | 2 ++
 board/freescale/ls1021atwr/ls1021atwr.c           | 2 ++
 3 files changed, 5 insertions(+)

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
diff --git a/board/freescale/ls1021aqds/ls1021aqds.c 
b/board/freescale/ls1021aqds/ls1021aqds.c
index 655fc644fe90..e7c25a5012f0 100644
--- a/board/freescale/ls1021aqds/ls1021aqds.c
+++ b/board/freescale/ls1021aqds/ls1021aqds.c
@@ -281,6 +281,8 @@ int board_early_init_f(void)
        struct ccsr_cci400 *cci = (struct ccsr_cci400 *)CONFIG_SYS_CCI400_ADDR;
        unsigned int major;
 
+       setbits_be32(&scfg->snpcnfgcr, SCFG_SNPCNFGCR_SEC_RD_WR);
+
 #ifdef CONFIG_TSEC_ENET
        /* clear BD & FR bits for BE BD's and frame data */
        clrbits_be32(&scfg->etsecdmamcr, SCFG_ETSECDMAMCR_LE_BD_FR);
diff --git a/board/freescale/ls1021atwr/ls1021atwr.c 
b/board/freescale/ls1021atwr/ls1021atwr.c
index 228dbf81bb25..e15999e42165 100644
--- a/board/freescale/ls1021atwr/ls1021atwr.c
+++ b/board/freescale/ls1021atwr/ls1021atwr.c
@@ -482,6 +482,8 @@ int board_early_init_f(void)
        struct ccsr_cci400 *cci = (struct ccsr_cci400 *)CONFIG_SYS_CCI400_ADDR;
        unsigned int major;
 
+       setbits_be32(&scfg->snpcnfgcr, SCFG_SNPCNFGCR_SEC_RD_WR);
+
 #ifdef CONFIG_TSEC_ENET
        /* clear BD & FR bits for BE BD's and frame data */
        clrbits_be32(&scfg->etsecdmamcr, SCFG_ETSECDMAMCR_LE_BD_FR);
-- 
2.4.4

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