changed Makefile and profiles, added patches for kernel 2.6.24 (stable-branch of Openmoko)

SVN-Revision: 13613

1 files changed, 71 insertions, 0 deletions

diff --git a/target/linux/s3c24xx/patches-2.6.24/1313-S3C24xx-NAND-allow-for-faster-timings.patch b/target/linux/s3c24xx/patches-2.6.24/1313-S3C24xx-NAND-allow-for-faster-timings.patch
new file mode 100644
index 0000000..640c9b3
--- /dev/null
+++ b/target/linux/s3c24xx/patches-2.6.24/1313-S3C24xx-NAND-allow-for-faster-timings.patch
@@ -0,0 +1,71 @@
+From 54524f4531c8b262431b794fea610d81bb351c86 Mon Sep 17 00:00:00 2001
+From: Harald Welte <laforge@openmoko.org>
+Date: Tue, 21 Oct 2008 08:17:07 +0100
+Subject: [PATCH] S3C24xx NAND: allow for faster timings
+
+Tacls can actually be zero with some NAND flash devices, so we need
+to permit this.
+
+Also, the TACLS register actually specifies the actual number of
+HCLK clocks, where the TWRPH0 and TWRPH1 registers are auto-incremented
+by one HCLK clock in hardware.
+
+Signed-off-by: Harald Welte <laforge@openmoko.org>
+---
+ drivers/mtd/nand/s3c2410.c |   13 +++++++------
+ 1 files changed, 7 insertions(+), 6 deletions(-)
+
+diff --git a/drivers/mtd/nand/s3c2410.c b/drivers/mtd/nand/s3c2410.c
+index 4413d76..eeb48ed 100644
+--- a/drivers/mtd/nand/s3c2410.c
++++ b/drivers/mtd/nand/s3c2410.c
+@@ -158,6 +158,10 @@ static int s3c_nand_calc_rate(int wanted, unsigned long clk, int max)
+ {
+ 	int result;
+ 
++	/* Tacls can be 0ns in some cases */
++	if (wanted == 0)
++		return 0;
++
+ 	result = (wanted * clk) / NS_IN_KHZ;
+ 	result++;
+ 
+@@ -168,9 +172,6 @@ static int s3c_nand_calc_rate(int wanted, unsigned long clk, int max)
+ 		return -1;
+ 	}
+ 
+-	if (result < 1)
+-		result = 1;
+-
+ 	return result;
+ }
+ 
+@@ -202,7 +203,7 @@ static int s3c2410_nand_inithw(struct s3c2410_nand_info *info,
+ 		twrph1 = 8;
+ 	}
+ 
+-	if (tacls < 0 || twrph0 < 0 || twrph1 < 0) {
++	if (tacls < 0 || twrph0 < 1 || twrph1 < 1) {
+ 		dev_err(info->device, "cannot get suitable timings\n");
+ 		return -EINVAL;
+ 	}
+@@ -213,14 +214,14 @@ static int s3c2410_nand_inithw(struct s3c2410_nand_info *info,
+  	switch (info->cpu_type) {
+  	case TYPE_S3C2410:
+ 		cfg = S3C2410_NFCONF_EN;
+-		cfg |= S3C2410_NFCONF_TACLS(tacls - 1);
++		cfg |= S3C2410_NFCONF_TACLS(tacls);
+ 		cfg |= S3C2410_NFCONF_TWRPH0(twrph0 - 1);
+ 		cfg |= S3C2410_NFCONF_TWRPH1(twrph1 - 1);
+ 		break;
+ 
+  	case TYPE_S3C2440:
+  	case TYPE_S3C2412:
+-		cfg = S3C2440_NFCONF_TACLS(tacls - 1);
++		cfg = S3C2440_NFCONF_TACLS(tacls);
+ 		cfg |= S3C2440_NFCONF_TWRPH0(twrph0 - 1);
+ 		cfg |= S3C2440_NFCONF_TWRPH1(twrph1 - 1);
+ 
+-- 
+1.5.6.5
+