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[U-Boot,v4,7/9] da850/omap-l138: Fix NAND flash timings

Message ID 1340609723-23243-8-git-send-email-prabhakar.lad@ti.com
State Accepted
Delegated to: Tom Rini
Headers show

Commit Message

Prabhakar Lad June 25, 2012, 7:35 a.m. UTC 
From: Lad, Prabhakar <prabhakar.lad@ti.com>

Though Commit id a3f88293ddd13facd734769c1664d35ab4ed681f (da850evm:
setup the NAND flash timings) has configured the AEMIF timings, they
are not exactly in sync with the timings used in Linux. Linux is
configuring the timing register as 0x08222204, where as currently it
configured to 0x00100084 in U-Boot. This issue was found out when
support for NAND SPL is added in U-Boot. Without this patch U-Boot
does not come up with SPL.

Signed-off-by: Lad, Prabhakar <prabhakar.lad@ti.com>
Signed-off-by: Rajashekhara, Sudhakar <sudhakar.raj@ti.com>
Signed-off-by: Hadli, Manjunath <manjunath.hadli@ti.com>
---
 Changes for v3:
 1: Patch number changed due to patch 6 split up
    of previous version.

 Changes for v4: None

 board/davinci/da8xxevm/da850evm.c |   10 +++++-----
 1 files changed, 5 insertions(+), 5 deletions(-)
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Patch

diff --git a/board/davinci/da8xxevm/da850evm.c b/board/davinci/da8xxevm/da850evm.c
index 152a524..0c7aabb 100644
--- a/board/davinci/da8xxevm/da850evm.c
+++ b/board/davinci/da8xxevm/da850evm.c
@@ -348,11 +348,11 @@  int board_init(void)
 	 * NAND CS setup - cycle counts based on da850evm NAND timings in the
 	 * Linux kernel @ 25MHz EMIFA
 	 */
-	writel((DAVINCI_ABCR_WSETUP(0) |
-		DAVINCI_ABCR_WSTROBE(1) |
-		DAVINCI_ABCR_WHOLD(0) |
-		DAVINCI_ABCR_RSETUP(0) |
-		DAVINCI_ABCR_RSTROBE(1) |
+	writel((DAVINCI_ABCR_WSETUP(2) |
+		DAVINCI_ABCR_WSTROBE(2) |
+		DAVINCI_ABCR_WHOLD(1) |
+		DAVINCI_ABCR_RSETUP(1) |
+		DAVINCI_ABCR_RSTROBE(4) |
 		DAVINCI_ABCR_RHOLD(0) |
 		DAVINCI_ABCR_TA(1) |
 		DAVINCI_ABCR_ASIZE_8BIT),