[U-Boot] [PATCH 2/5] arm: ls102xa: enable all the snoop signal for masters.

[Yuan Yao]

Enable the IP feature's snoop signal to support
hardware snoop for cache coherence.

SNPCNFGCR contains the bits to drive snoop signal
for various masters.

Signed-off-by: Yuan Yao <yao.yuan at freescale.com>
---
 arch/arm/cpu/armv7/ls102xa/soc.c                  | 8 ++++++++
 arch/arm/include/asm/arch-ls102xa/immap_ls102xa.h | 6 ++++++
 2 files changed, 14 insertions(+)

diff --git a/arch/arm/cpu/armv7/ls102xa/soc.c b/arch/arm/cpu/armv7/ls102xa/soc.c
index 0fdd6d4..6036473 100644
--- a/arch/arm/cpu/armv7/ls102xa/soc.c
+++ b/arch/arm/cpu/armv7/ls102xa/soc.c
@@ -62,5 +62,13 @@ int arch_soc_init(void)
 		out_le32(&cci->ctrl_ord, CCI400_CTRLORD_TERM_BARRIER);
 	}
 
+	/* Enable all the snoop signal for various masters */
+	out_be32(&scfg->snpcnfgcr, SCFG_SNPCNFGCR_SEC_RD_WR |
+				SCFG_SNPCNFGCR_DCU_RD_WR |
+				SCFG_SNPCNFGCR_SATA_RD_WR |
+				SCFG_SNPCNFGCR_USB3_RD_WR |
+				SCFG_SNPCNFGCR_DBG_RD_WR |
+				SCFG_SNPCNFGCR_EDMA_SNP);
+
 	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 1bcdf04..0527576 100644
--- a/arch/arm/include/asm/arch-ls102xa/immap_ls102xa.h
+++ b/arch/arm/include/asm/arch-ls102xa/immap_ls102xa.h
@@ -150,6 +150,12 @@ struct ccsr_gur {
 #define SCFG_ETSECCMCR_GE1_CLK125	0x08000000
 #define SCFG_PIXCLKCR_PXCKEN		0x80000000
 #define SCFG_QSPI_CLKSEL		0xc0100000
+#define SCFG_SNPCNFGCR_SEC_RD_WR	0xc0000000
+#define SCFG_SNPCNFGCR_DCU_RD_WR	0x03000000
+#define SCFG_SNPCNFGCR_SATA_RD_WR	0x00c00000
+#define SCFG_SNPCNFGCR_USB3_RD_WR	0x00300000
+#define SCFG_SNPCNFGCR_DBG_RD_WR	0x000c0000
+#define SCFG_SNPCNFGCR_EDMA_SNP		0x00020000
 #define SCFG_ENDIANCR_LE		0x80000000
 
 /* Supplemental Configuration Unit */
-- 
2.1.0.27.g96db324