[U-Boot] [PATCH 10/18] arm: mx6: ddr: configure MMDC for slow_pd
Nikita Kiryanov
nikita at compulab.co.il
Sun Aug 3 09:34:40 CEST 2014
According to MX6 TRM, both MMDC and DRAM should be configured to
the same powerdown precharge. Currently, mx6_dram_cfg()
configures MMDC for fast pd, and the DRAM for slow pd.
Configure MMDC for slow pd.
Cc: Stefano Babic <sbabic at denx.de>
Cc: Tim Harvey <tharvey at gateworks.com>
Signed-off-by: Nikita Kiryanov <nikita at compulab.co.il>
---
arch/arm/cpu/armv7/mx6/ddr.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/arm/cpu/armv7/mx6/ddr.c b/arch/arm/cpu/armv7/mx6/ddr.c
index 70ce38f..c0fb749 100644
--- a/arch/arm/cpu/armv7/mx6/ddr.c
+++ b/arch/arm/cpu/armv7/mx6/ddr.c
@@ -463,6 +463,7 @@ void mx6_dram_cfg(const struct mx6_ddr_sysinfo *sysinfo,
mmdc0->mdpdc = (tcke & 0x7) << 16 |
5 << 12 | /* PWDT_1: 256 cycles */
5 << 8 | /* PWDT_0: 256 cycles */
+ 1 << 7 | /* SLOW_PD */
1 << 6 | /* BOTH_CS_PD */
(tcksrx & 0x7) << 3 |
(tcksre & 0x7);
--
1.9.1
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