* [U-Boot] [PATCH] ARM: OMAP4: Correct the lpddr2 io settings register value.
@ 2012-05-24 10:30 R Sricharan
2012-05-25 15:04 ` Tom Rini
0 siblings, 1 reply; 2+ messages in thread
From: R Sricharan @ 2012-05-24 10:30 UTC (permalink / raw)
To: u-boot
To meet certain timing requirements on the lpddr2 cmd and data phy
interfaces ,lpddr iopads have to be configured as differential buffers
and a Vref has to be internally generated and provided to these buffers.
Correcting the above settings here.
Signed-off-by: R Sricharan <r.sricharan@ti.com>
---
Verified this on OMAP4 panda using mtest.
arch/arm/include/asm/arch-omap4/omap.h | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/arch/arm/include/asm/arch-omap4/omap.h b/arch/arm/include/asm/arch-omap4/omap.h
index 47c5883..03bd923 100644
--- a/arch/arm/include/asm/arch-omap4/omap.h
+++ b/arch/arm/include/asm/arch-omap4/omap.h
@@ -112,7 +112,7 @@
#define CONTROL_LPDDR2IO_SLEW_325PS_DRV8_GATE_KEEPER 0x9E9E9E9E
#define CONTROL_LPDDR2IO_SLEW_315PS_DRV12_PULL_DOWN 0x7C7C7C7C
#define LPDDR2IO_GR10_WD_MASK (3 << 17)
-#define CONTROL_LPDDR2IO_3_VAL 0xA0888C00
+#define CONTROL_LPDDR2IO_3_VAL 0xA0888C0F
/* CONTROL_EFUSE_2 */
#define CONTROL_EFUSE_2_NMOS_PMOS_PTV_CODE_1 0x00ffc000
--
1.7.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
* [U-Boot] [PATCH] ARM: OMAP4: Correct the lpddr2 io settings register value.
2012-05-24 10:30 [U-Boot] [PATCH] ARM: OMAP4: Correct the lpddr2 io settings register value R Sricharan
@ 2012-05-25 15:04 ` Tom Rini
0 siblings, 0 replies; 2+ messages in thread
From: Tom Rini @ 2012-05-25 15:04 UTC (permalink / raw)
To: u-boot
On Thu, May 24, 2012 at 04:00:25PM +0530, R Sricharan wrote:
> To meet certain timing requirements on the lpddr2 cmd and data phy
> interfaces ,lpddr iopads have to be configured as differential buffers
> and a Vref has to be internally generated and provided to these buffers.
>
> Correcting the above settings here.
>
> Signed-off-by: R Sricharan <r.sricharan@ti.com>
Applied to u-boot-ti/master, thanks.
--
Tom
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2012-05-24 10:30 [U-Boot] [PATCH] ARM: OMAP4: Correct the lpddr2 io settings register value R Sricharan
2012-05-25 15:04 ` Tom Rini
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