From 644bc7ec5cee3a93ecb3adc364be6374d3f60a27 Mon Sep 17 00:00:00 2001
From: Jason Jin <Jason.Jin@freescale.com>
Date: Fri, 17 Oct 2014 15:26:32 +0800
Subject: [PATCH] arm: ls102xa: Add snoop disable for slave port 0, 1 and 2
Disable the snoop for slave interface 0, 1 and 2
to avoid the interleaving on the CCI400 BUS.
Signed-off-by: Jason Jin <Jason.Jin@freescale.com>
Signed-off-by: Minghuan Lian <Minghuan.Lian@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
---
arch/arm/include/asm/arch-ls102xa/immap_ls102xa.h | 1 +
board/freescale/ls1021aqds/ls1021aqds.c | 7 +++++++
board/freescale/ls1021atwr/ls1021atwr.c | 10 ++++++++++
3 files changed, 18 insertions(+)
diff --git a/arch/arm/include/asm/arch-ls102xa/immap_ls102xa.h b/arch/arm/include/asm/arch-ls102xa/immap_ls102xa.h
index b5db7205fc..9f4fbba38f 100644
--- a/arch/arm/include/asm/arch-ls102xa/immap_ls102xa.h
+++ b/arch/arm/include/asm/arch-ls102xa/immap_ls102xa.h
@@ -448,6 +448,7 @@ struct ccsr_ddr {
#define CCI400_CTRLORD_TERM_BARRIER 0x00000008
#define CCI400_CTRLORD_EN_BARRIER 0
+#define CCI400_SHAORD_NON_SHAREABLE 0x00000002
/* CCI-400 registers */
struct ccsr_cci400 {
diff --git a/board/freescale/ls1021aqds/ls1021aqds.c b/board/freescale/ls1021aqds/ls1021aqds.c
index bcfa9b9556..5154a85b2d 100644
--- a/board/freescale/ls1021aqds/ls1021aqds.c
+++ b/board/freescale/ls1021aqds/ls1021aqds.c
@@ -233,6 +233,13 @@ int board_init(void)
/* Set CCI-400 control override register to
* enable barrier transaction */
out_le32(&cci->ctrl_ord, CCI400_CTRLORD_EN_BARRIER);
+ /*
+ * Set CCI-400 Slave interface S0, S1, S2 Shareable Override Register
+ * All transactions are treated as non-shareable
+ */
+ out_le32(&cci->slave[0].sha_ord, CCI400_SHAORD_NON_SHAREABLE);
+ out_le32(&cci->slave[1].sha_ord, CCI400_SHAORD_NON_SHAREABLE);
+ out_le32(&cci->slave[2].sha_ord, CCI400_SHAORD_NON_SHAREABLE);
select_i2c_ch_pca9547(I2C_MUX_CH_DEFAULT);
diff --git a/board/freescale/ls1021atwr/ls1021atwr.c b/board/freescale/ls1021atwr/ls1021atwr.c
index a90bb09152..3e8981b39f 100644
--- a/board/freescale/ls1021atwr/ls1021atwr.c
+++ b/board/freescale/ls1021atwr/ls1021atwr.c
@@ -277,6 +277,16 @@ int board_early_init_f(void)
int board_init(void)
{
+ struct ccsr_cci400 *cci = (struct ccsr_cci400 *)CONFIG_SYS_CCI400_ADDR;
+
+ /*
+ * Set CCI-400 Slave interface S0, S1, S2 Shareable Override Register
+ * All transactions are treated as non-shareable
+ */
+ out_le32(&cci->slave[0].sha_ord, CCI400_SHAORD_NON_SHAREABLE);
+ out_le32(&cci->slave[1].sha_ord, CCI400_SHAORD_NON_SHAREABLE);
+ out_le32(&cci->slave[2].sha_ord, CCI400_SHAORD_NON_SHAREABLE);
+
#ifndef CONFIG_SYS_FSL_NO_SERDES
fsl_serdes_init();
config_serdes_mux();
--
2.39.5