From: Tang Yuantian <yuantian.t...@freescale.com>
Signed-off-by: Tang Yuantian <yuantian.t...@freescale.com>
---
arch/arm/include/asm/arch-ls102xa/immap_ls102xa.h | 4 ++
board/freescale/ls1021atwr/ls1021atwr.c | 68 ++++++++++++++++++++++-
include/configs/ls1021atwr.h | 7 ++-
3 files changed, 75 insertions(+), 4 deletions(-)
diff --git a/arch/arm/include/asm/arch-ls102xa/immap_ls102xa.h
b/arch/arm/include/asm/arch-ls102xa/immap_ls102xa.h
index a8122c1..bbd5955 100644
--- a/arch/arm/include/asm/arch-ls102xa/immap_ls102xa.h
+++ b/arch/arm/include/asm/arch-ls102xa/immap_ls102xa.h
@@ -370,6 +370,10 @@ struct ccsr_serdes {
#define DDR_DDR_ZQ_CNTL 0x89080600
#define DDR_CS0_CONFIG_2 0
#define DDR_SDRAM_CFG_MEM_EN 0x80000000
+#define SDRAM_CFG2_D_INIT 0x00000010
+#define DDR_CDR2_VREF_TRAIN_EN 0x00000080
+#define SDRAM_CFG2_FRC_SR 0x80000000
+#define SDRAM_CFG_BI 0x00000001
/* DDR memory controller registers */
struct ccsr_ddr {
diff --git a/board/freescale/ls1021atwr/ls1021atwr.c
b/board/freescale/ls1021atwr/ls1021atwr.c
index ed5bd27..2c8d6d1 100644
--- a/board/freescale/ls1021atwr/ls1021atwr.c
+++ b/board/freescale/ls1021atwr/ls1021atwr.c
@@ -21,6 +21,7 @@
#include <tsec.h>
#include <fsl_sec.h>
#include <spl.h>
+#include "../common/sleep.h"
#ifdef CONFIG_U_QE
#include "../../../drivers/qe/qe.h"
#endif
@@ -147,6 +148,7 @@ unsigned int get_soc_major_rev(void)
void ddrmc_init(void)
{
struct ccsr_ddr *ddr = (struct ccsr_ddr *)CONFIG_SYS_FSL_DDR_ADDR;
+ u32 temp_sdram_cfg;
out_be32(&ddr->sdram_cfg, DDR_SDRAM_CFG);
@@ -160,7 +162,22 @@ void ddrmc_init(void)
out_be32(&ddr->timing_cfg_4, DDR_TIMING_CFG_4);
out_be32(&ddr->timing_cfg_5, DDR_TIMING_CFG_5);
- out_be32(&ddr->sdram_cfg_2, DDR_SDRAM_CFG_2);
+#ifdef CONFIG_DEEP_SLEEP
+ if (is_warm_boot()) {
+ out_be32(&ddr->sdram_cfg_2,
+ DDR_SDRAM_CFG_2 & ~SDRAM_CFG2_D_INIT);
+ out_be32(&ddr->init_addr, CONFIG_SYS_SDRAM_BASE);
+ out_be32(&ddr->init_ext_addr, (1 << 31));
+
+ /* DRAM VRef will not be trained */
+ out_be32(&ddr->ddr_cdr2,
+ DDR_DDR_CDR2 & ~DDR_CDR2_VREF_TRAIN_EN);
+ } else
+#endif
+ {
+ out_be32(&ddr->sdram_cfg_2, DDR_SDRAM_CFG_2);
+ out_be32(&ddr->ddr_cdr2, DDR_DDR_CDR2);
+ }
out_be32(&ddr->sdram_mode, DDR_SDRAM_MODE);
out_be32(&ddr->sdram_mode_2, DDR_SDRAM_MODE_2);
@@ -173,14 +190,35 @@ void ddrmc_init(void)
out_be32(&ddr->ddr_wrlvl_cntl_3, DDR_DDR_WRLVL_CNTL_3);
out_be32(&ddr->ddr_cdr1, DDR_DDR_CDR1);
- out_be32(&ddr->ddr_cdr2, DDR_DDR_CDR2);
out_be32(&ddr->sdram_clk_cntl, DDR_SDRAM_CLK_CNTL);
out_be32(&ddr->ddr_zq_cntl, DDR_DDR_ZQ_CNTL);
out_be32(&ddr->cs0_config_2, DDR_CS0_CONFIG_2);
udelay(1);
- out_be32(&ddr->sdram_cfg, DDR_SDRAM_CFG | DDR_SDRAM_CFG_MEM_EN);
+
+#ifdef CONFIG_DEEP_SLEEP
+ if (is_warm_boot()) {
+ /* enter self-refresh */
+ temp_sdram_cfg = in_be32(&ddr->sdram_cfg_2);
+ temp_sdram_cfg |= SDRAM_CFG2_FRC_SR;
+ out_be32(&ddr->sdram_cfg_2, temp_sdram_cfg);
+
+ temp_sdram_cfg = (DDR_SDRAM_CFG_MEM_EN | SDRAM_CFG_BI);
+ } else
+#endif
+ temp_sdram_cfg = (DDR_SDRAM_CFG_MEM_EN & ~SDRAM_CFG_BI);
+
+ out_be32(&ddr->sdram_cfg, DDR_SDRAM_CFG | temp_sdram_cfg);
+
+#ifdef CONFIG_DEEP_SLEEP
+ if (is_warm_boot()) {
+ /* exit self-refresh */
+ temp_sdram_cfg = in_be32(&ddr->sdram_cfg_2);
+ temp_sdram_cfg &= ~SDRAM_CFG2_FRC_SR;
+ out_be32(&ddr->sdram_cfg_2, temp_sdram_cfg);
+ }
+#endif
}
int dram_init(void)
@@ -190,6 +228,11 @@ int dram_init(void)
#endif
gd->ram_size = get_ram_size((void *)PHYS_SDRAM, PHYS_SDRAM_SIZE);
+
+#if defined(CONFIG_DEEP_SLEEP) && !defined(CONFIG_SPL_BUILD)
+ fsl_dp_resume();
+#endif
+
return 0;
}
@@ -384,6 +427,11 @@ int board_early_init_f(void)
out_le32(&cci->slave[2].sha_ord, CCI400_SHAORD_NON_SHAREABLE);
}
+#if defined(CONFIG_DEEP_SLEEP)
+ if (is_warm_boot())
+ fsl_dp_disable_console();
+#endif
+
return 0;
}
@@ -395,6 +443,11 @@ void board_init_f(ulong dummy)
get_clocks();
+#if defined(CONFIG_DEEP_SLEEP)
+ if (is_warm_boot())
+ fsl_dp_disable_console();
+#endif
+
preloader_console_init();
dram_init();
@@ -563,6 +616,15 @@ int misc_init_r(void)
}
#endif
+#if defined(CONFIG_DEEP_SLEEP)
+void board_sleep_prepare(void)
+{
+#ifdef CONFIG_LS102XA_NS_ACCESS
+ enable_devices_ns_access(ns_dev, ARRAY_SIZE(ns_dev));
+#endif
+}
+#endif
+
int ft_board_setup(void *blob, bd_t *bd)
{
ft_cpu_setup(blob, bd);
diff --git a/include/configs/ls1021atwr.h b/include/configs/ls1021atwr.h
index 729205f..4b96feb 100644
--- a/include/configs/ls1021atwr.h
+++ b/include/configs/ls1021atwr.h
@@ -18,6 +18,10 @@
#define CONFIG_SKIP_LOWLEVEL_INIT
#define CONFIG_BOARD_EARLY_INIT_F
+#define CONFIG_DEEP_SLEEP
+#ifdef CONFIG_DEEP_SLEEP
+#define CONFIG_SILENT_CONSOLE
+#endif
/*
* Size of malloc() pool
@@ -60,7 +64,8 @@
#define CONFIG_SPL_PAD_TO 0x1c000
#define CONFIG_SYS_TEXT_BASE 0x82000000
-#define CONFIG_SYS_SPL_MALLOC_START 0x80200000
+#define CONFIG_SYS_SPL_MALLOC_START (CONFIG_SYS_TEXT_BASE + \
+ CONFIG_SYS_MONITOR_LEN)
#define CONFIG_SYS_SPL_MALLOC_SIZE 0x100000
#define CONFIG_SPL_BSS_START_ADDR 0x80100000
#define CONFIG_SPL_BSS_MAX_SIZE 0x80000
--
2.1.0.27.g96db324
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