[PATCH 1/4] ARM i.MX53: enable imx53_init_lowlevel for pbl
Sascha Hauer
s.hauer at pengutronix.de
Fri Oct 12 12:52:51 EDT 2012
The KARO Tx53 board in the revision 8030 has an instable SDRAM
setup. It works as long as the MMU is disabled, but the board
crashes at arbitrary places once the MMU gets enabled. So we
need the PLL setup early. Enable it for pbl.
Signed-off-by: Sascha Hauer <s.hauer at pengutronix.de>
---
arch/arm/mach-imx/Makefile | 1 +
arch/arm/mach-imx/imx53.c | 4 +++-
2 files changed, 4 insertions(+), 1 deletion(-)
diff --git a/arch/arm/mach-imx/Makefile b/arch/arm/mach-imx/Makefile
index 67f3a8c..e5ef78a 100644
--- a/arch/arm/mach-imx/Makefile
+++ b/arch/arm/mach-imx/Makefile
@@ -7,6 +7,7 @@ obj-$(CONFIG_ARCH_IMX31) += imx31.o iomux-v2.o clk-imx31.o
obj-$(CONFIG_ARCH_IMX35) += imx35.o iomux-v3.o clk-imx35.o
obj-$(CONFIG_ARCH_IMX51) += imx51.o iomux-v3.o imx5.o clk-imx5.o
obj-$(CONFIG_ARCH_IMX53) += imx53.o iomux-v3.o imx5.o clk-imx5.o
+pbl-$(CONFIG_ARCH_IMX53) += imx53.o imx5.o
obj-$(CONFIG_ARCH_IMX6) += imx6.o iomux-v3.o usb-imx6.o clk-imx6.o
obj-$(CONFIG_IMX_IIM) += iim.o
obj-$(CONFIG_NAND_IMX) += nand.o
diff --git a/arch/arm/mach-imx/imx53.c b/arch/arm/mach-imx/imx53.c
index 38b94fc..cac7b74 100644
--- a/arch/arm/mach-imx/imx53.c
+++ b/arch/arm/mach-imx/imx53.c
@@ -191,6 +191,8 @@ void imx53_init_lowlevel(unsigned int cpufreq_mhz)
writel(0xffffffff, ccm + MX5_CCM_CCGR6);
writel(0xffffffff, ccm + MX53_CCM_CCGR7);
- clock_notifier_call_chain();
+ if (!IS_ENABLED(__PBL__))
+ clock_notifier_call_chain();
+
writel(0, ccm + MX5_CCM_CCDR);
}
--
1.7.10.4
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