r1915 - trunk/src/target/u-boot/patches

[laforge at sita.openmoko.org]

Author: laforge
Date: 2007-05-06 11:25:24 +0200 (Sun, 06 May 2007)
New Revision: 1915

Modified:
   trunk/src/target/u-boot/patches/uboot-s3c2440.patch
Log:
* Fix S3C2440 support in the MMC/SD driver
* This also fixes 2410 SD card support problems (http://bugzilla.openmoko.org/cgi-bin/bugzilla/show_bug.cgi?id=164) caused by MMC style clocking rather than SD style clocking


Modified: trunk/src/target/u-boot/patches/uboot-s3c2440.patch
===================================================================
--- trunk/src/target/u-boot/patches/uboot-s3c2440.patch	2007-05-05 23:51:17 UTC (rev 1914)
+++ trunk/src/target/u-boot/patches/uboot-s3c2440.patch	2007-05-06 09:25:24 UTC (rev 1915)
@@ -147,6 +147,20 @@
  } /*__attribute__((__packed__))*/ S3C24X0_GPIO;
  
  
+@@ -637,8 +711,13 @@
+ 	S3C24X0_REG32	SDIDCNT;
+ 	S3C24X0_REG32	SDIDSTA;
+ 	S3C24X0_REG32	SDIFSTA;
++#if defined(CONFIG_S3C2410)
+ 	S3C24X0_REG32	SDIDAT;
+ 	S3C24X0_REG32	SDIIMSK;
++#elif defined(CONFIG_S3C2440)
++	S3C24X0_REG32	SDIIMSK;
++	S3C24X0_REG32	SDIDAT;
++#endif
+ } /*__attribute__((__packed__))*/ S3C2410_SDI;
+ 
+ 
 Index: u-boot/rtc/s3c24x0_rtc.c
 ===================================================================
 --- u-boot.orig/rtc/s3c24x0_rtc.c
@@ -1229,3 +1243,39 @@
 + #error "U-Boot legacy NAND support not available for S3C24xx"
  #endif
  #endif
+Index: u-boot/cpu/arm920t/s3c24x0/mmc.c
+===================================================================
+--- u-boot.orig/cpu/arm920t/s3c24x0/mmc.c
++++ u-boot/cpu/arm920t/s3c24x0/mmc.c
+@@ -137,6 +137,9 @@
+ 	dcon |= S3C2410_SDIDCON_RXAFTERCMD|S3C2410_SDIDCON_XFER_RXSTART;
+ 	if (wide)
+ 		dcon |= S3C2410_SDIDCON_WIDEBUS;
++#if defined(CONFIG_S3C2440)
++	dcon |= S3C2440_SDIDCON_DS_WORD | S3C2440_SDIDCON_DATSTART;
++#endif
+ 	sdi->SDIDCON = dcon;
+ 
+ 	/* send read command */
+@@ -394,13 +397,18 @@
+ 
+ 	clk_power->CLKCON |= (1 << 9);
+ 
++	sdi->SDIBSIZE = 512;
++#if defined(CONFIG_S3C2410)
+ 	/* S3C2410 has some bug that prevents reliable operation at higher speed */
+ 	//sdi->SDIPRE = 0x3e;  /* SDCLK = PCLK/2 / (SDIPRE+1) = 396kHz */
+-	sdi->SDIPRE = 0x02;  /* SDCLK = PCLK/2 / (SDIPRE+1) = 396kHz */
+-	sdi->SDIBSIZE = 512;
++	sdi->SDIPRE = 0x02;  /* 2410: SDCLK = PCLK/2 / (SDIPRE+1) = 11MHz */
+ 	sdi->SDIDTIMER = 0xffff;
++#elif defined(CONFIG_S3C2440)
++	sdi->SDIPRE = 0x05;  /* 2410: SDCLK = PCLK / (SDIPRE+1) = 11MHz */
++	sdi->SDIDTIMER = 0x7fffff;
++#endif
+ 	sdi->SDIIMSK = 0x0;
+-	sdi->SDICON = S3C2410_SDICON_FIFORESET|S3C2440_SDICON_MMCCLOCK;
++	sdi->SDICON = S3C2410_SDICON_FIFORESET|S3C2410_SDICON_CLOCKTYPE;
+ 	udelay(125000); /* FIXME: 74 SDCLK cycles */
+ 
+ 	mmc_csd.c_size = 0;