From 036f3f3379d56a4eb64d5154b47a8981a478fe3e Mon Sep 17 00:00:00 2001
From: Alison Wang <b18965@freescale.com>
Date: Thu, 12 Mar 2015 11:31:44 +0800
Subject: [PATCH] arm/ls102xa:Add support of conditional workaround
implementation as per SoC ver
For LS102xA, some workarounds are only used in VER1.0, so silicon
version detection are added for QDS and TWR boards.
Signed-off-by: Alison Wang <alison.wang@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
---
.../include/asm/arch-ls102xa/immap_ls102xa.h | 3 +
board/freescale/ls1021aqds/ls1021aqds.c | 68 +++++++++++++------
board/freescale/ls1021atwr/ls1021atwr.c | 27 ++++++--
3 files changed, 72 insertions(+), 26 deletions(-)
diff --git a/arch/arm/include/asm/arch-ls102xa/immap_ls102xa.h b/arch/arm/include/asm/arch-ls102xa/immap_ls102xa.h
index 3a64afce46..a8122c1a67 100644
--- a/arch/arm/include/asm/arch-ls102xa/immap_ls102xa.h
+++ b/arch/arm/include/asm/arch-ls102xa/immap_ls102xa.h
@@ -17,6 +17,9 @@
#define SOC_VER_LS1021 0x11
#define SOC_VER_LS1022 0x12
+#define SOC_MAJOR_VER_1_0 0x1
+#define SOC_MAJOR_VER_2_0 0x2
+
#define CCSR_BRR_OFFSET 0xe4
#define CCSR_SCRATCHRW1_OFFSET 0x200
diff --git a/board/freescale/ls1021aqds/ls1021aqds.c b/board/freescale/ls1021aqds/ls1021aqds.c
index 722b88f1e9..69a56719ef 100644
--- a/board/freescale/ls1021aqds/ls1021aqds.c
+++ b/board/freescale/ls1021aqds/ls1021aqds.c
@@ -138,6 +138,17 @@ unsigned long get_board_ddr_clk(void)
return 66666666;
}
+unsigned int get_soc_major_rev(void)
+{
+ struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
+ unsigned int svr, major;
+
+ svr = in_be32(&gur->svr);
+ major = SVR_MAJ(svr);
+
+ return major;
+}
+
int select_i2c_ch_pca9547(u8 ch)
{
int ret;
@@ -181,6 +192,7 @@ int board_early_init_f(void)
{
struct ccsr_scfg *scfg = (struct ccsr_scfg *)CONFIG_SYS_FSL_SCFG_ADDR;
struct ccsr_cci400 *cci = (struct ccsr_cci400 *)CONFIG_SYS_CCI400_ADDR;
+ unsigned int major;
#ifdef CONFIG_TSEC_ENET
out_be32(&scfg->etsecdmamcr, SCFG_ETSECDMAMCR_LE_BD_FR);
@@ -205,19 +217,22 @@ int board_early_init_f(void)
out_le32(&cci->slave[4].snoop_ctrl,
CCI400_DVM_MESSAGE_REQ_EN | CCI400_SNOOP_REQ_EN);
- /*
- * Set CCI-400 Slave interface S1, S2 Shareable Override Register
- * All transactions are treated as non-shareable
- */
- out_le32(&cci->slave[1].sha_ord, CCI400_SHAORD_NON_SHAREABLE);
- out_le32(&cci->slave[2].sha_ord, CCI400_SHAORD_NON_SHAREABLE);
-
- /* Workaround for the issue that DDR could not respond to
- * barrier transaction which is generated by executing DSB/ISB
- * instruction. Set CCI-400 control override register to
- * terminate the barrier transaction. After DDR is initialized,
- * allow barrier transaction to DDR again */
- out_le32(&cci->ctrl_ord, CCI400_CTRLORD_TERM_BARRIER);
+ major = get_soc_major_rev();
+ if (major == SOC_MAJOR_VER_1_0) {
+ /*
+ * Set CCI-400 Slave interface S1, S2 Shareable Override
+ * Register All transactions are treated as non-shareable
+ */
+ out_le32(&cci->slave[1].sha_ord, CCI400_SHAORD_NON_SHAREABLE);
+ out_le32(&cci->slave[2].sha_ord, CCI400_SHAORD_NON_SHAREABLE);
+
+ /* Workaround for the issue that DDR could not respond to
+ * barrier transaction which is generated by executing DSB/ISB
+ * instruction. Set CCI-400 control override register to
+ * terminate the barrier transaction. After DDR is initialized,
+ * allow barrier transaction to DDR again */
+ out_le32(&cci->ctrl_ord, CCI400_CTRLORD_TERM_BARRIER);
+ }
#if defined(CONFIG_DEEP_SLEEP)
if (is_warm_boot())
@@ -231,6 +246,7 @@ int board_early_init_f(void)
void board_init_f(ulong dummy)
{
struct ccsr_cci400 *cci = (struct ccsr_cci400 *)CONFIG_SYS_CCI400_ADDR;
+ unsigned int major;
#ifdef CONFIG_NAND_BOOT
struct ccsr_gur __iomem *gur = (void *)CONFIG_SYS_FSL_GUTS_ADDR;
@@ -267,7 +283,10 @@ void board_init_f(ulong dummy)
#ifdef CONFIG_SPL_I2C_SUPPORT
i2c_init_all();
#endif
- out_le32(&cci->ctrl_ord, CCI400_CTRLORD_TERM_BARRIER);
+
+ major = get_soc_major_rev();
+ if (major == SOC_MAJOR_VER_1_0)
+ out_le32(&cci->ctrl_ord, CCI400_CTRLORD_TERM_BARRIER);
dram_init();
@@ -548,10 +567,14 @@ struct smmu_stream_id dev_stream_id[] = {
int board_init(void)
{
struct ccsr_cci400 *cci = (struct ccsr_cci400 *)CONFIG_SYS_CCI400_ADDR;
+ unsigned int major;
- /* Set CCI-400 control override register to
- * enable barrier transaction */
- out_le32(&cci->ctrl_ord, CCI400_CTRLORD_EN_BARRIER);
+ major = get_soc_major_rev();
+ if (major == SOC_MAJOR_VER_1_0) {
+ /* Set CCI-400 control override register to
+ * enable barrier transaction */
+ out_le32(&cci->ctrl_ord, CCI400_CTRLORD_EN_BARRIER);
+ }
select_i2c_ch_pca9547(I2C_MUX_CH_DEFAULT);
@@ -580,10 +603,15 @@ int board_init(void)
void board_sleep_prepare(void)
{
struct ccsr_cci400 __iomem *cci = (void *)CONFIG_SYS_CCI400_ADDR;
+ unsigned int major;
+
+ major = get_soc_major_rev();
+ if (major == SOC_MAJOR_VER_1_0) {
+ /* Set CCI-400 control override register to
+ * enable barrier transaction */
+ out_le32(&cci->ctrl_ord, CCI400_CTRLORD_EN_BARRIER);
+ }
- /* Set CCI-400 control override register to
- * enable barrier transaction */
- out_le32(&cci->ctrl_ord, CCI400_CTRLORD_EN_BARRIER);
#ifdef CONFIG_LS102XA_NS_ACCESS
enable_devices_ns_access(ns_dev, ARRAY_SIZE(ns_dev));
diff --git a/board/freescale/ls1021atwr/ls1021atwr.c b/board/freescale/ls1021atwr/ls1021atwr.c
index fb8525fe59..a9c87f2a22 100644
--- a/board/freescale/ls1021atwr/ls1021atwr.c
+++ b/board/freescale/ls1021atwr/ls1021atwr.c
@@ -122,6 +122,17 @@ int checkboard(void)
return 0;
}
+unsigned int get_soc_major_rev(void)
+{
+ struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
+ unsigned int svr, major;
+
+ svr = in_be32(&gur->svr);
+ major = SVR_MAJ(svr);
+
+ return major;
+}
+
void ddrmc_init(void)
{
struct ccsr_ddr *ddr = (struct ccsr_ddr *)CONFIG_SYS_FSL_DDR_ADDR;
@@ -264,6 +275,7 @@ int board_early_init_f(void)
{
struct ccsr_scfg *scfg = (struct ccsr_scfg *)CONFIG_SYS_FSL_SCFG_ADDR;
struct ccsr_cci400 *cci = (struct ccsr_cci400 *)CONFIG_SYS_CCI400_ADDR;
+ unsigned int major;
#ifdef CONFIG_TSEC_ENET
out_be32(&scfg->etsecdmamcr, SCFG_ETSECDMAMCR_LE_BD_FR);
@@ -289,12 +301,15 @@ int board_early_init_f(void)
out_le32(&cci->slave[4].snoop_ctrl,
CCI400_DVM_MESSAGE_REQ_EN | CCI400_SNOOP_REQ_EN);
- /*
- * Set CCI-400 Slave interface S1, S2 Shareable Override Register
- * All transactions are treated as non-shareable
- */
- out_le32(&cci->slave[1].sha_ord, CCI400_SHAORD_NON_SHAREABLE);
- out_le32(&cci->slave[2].sha_ord, CCI400_SHAORD_NON_SHAREABLE);
+ major = get_soc_major_rev();
+ if (major == SOC_MAJOR_VER_1_0) {
+ /*
+ * Set CCI-400 Slave interface S1, S2 Shareable Override
+ * Register All transactions are treated as non-shareable
+ */
+ out_le32(&cci->slave[1].sha_ord, CCI400_SHAORD_NON_SHAREABLE);
+ out_le32(&cci->slave[2].sha_ord, CCI400_SHAORD_NON_SHAREABLE);
+ }
return 0;
}
--
2.39.5