[U-Boot] [PATCH v2 13/20] tegra: Setup PMC scratch info from ap20 setup

Simon Glass sjg at chromium.org
Fri Jan 13 22:35:28 CET 2012


From: Yen Lin <yelin at nvidia.com>

Save SDRAM parameters into the warmboot scratch registers

Signed-off-by: Simon Glass <sjg at chromium.org>
---

 arch/arm/cpu/armv7/tegra2/ap20.c |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/arch/arm/cpu/armv7/tegra2/ap20.c b/arch/arm/cpu/armv7/tegra2/ap20.c
index fadce15..c36cb70 100644
--- a/arch/arm/cpu/armv7/tegra2/ap20.c
+++ b/arch/arm/cpu/armv7/tegra2/ap20.c
@@ -31,6 +31,7 @@
 #include <asm/arch/pmc.h>
 #include <asm/arch/pinmux.h>
 #include <asm/arch/scu.h>
+#include <asm/arch/warmboot.h>
 #include <common.h>
 
 int tegra_get_chip_type(void)
@@ -322,6 +323,11 @@ void init_pmc_scratch(void)
 
 	/* ODMDATA is for kernel use to determine RAM size, LP config, etc. */
 	writel(CONFIG_SYS_BOARD_ODMDATA, &pmc->pmc_scratch20);
+
+#ifdef CONFIG_TEGRA2_LP0
+	/* save Sdram params to PMC 2, 4, and 24 for WB0 */
+	warmboot_save_sdram_params();
+#endif
 }
 
 void tegra2_start(void)
-- 
1.7.7.3



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