omap24xx: Support booting userland from MMC card

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@22531 3c298f89-4303-0410-b956-a3cf2f4a3e73

target/linux/omap24xx/Makefile

@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 ARCH:=arm
 BOARD:=omap24xx
 BOARDNAME:=TI OMAP-24xx
-FEATURES:=jffs2
+FEATURES:=squashfs jffs2
 
 LINUX_VERSION:=2.6.35
 

target/linux/omap24xx/config-2.6.35

@@ -75,7 +75,7 @@ CONFIG_CBUS_RETU_WDT=y
 CONFIG_CBUS_TAHVO=y
 CONFIG_CBUS_TAHVO_USER=y
 CONFIG_CC_OPTIMIZE_FOR_SIZE=y
-CONFIG_CMDLINE="root=1f03 rootfstype=jffs2 console=ttyS2,115200 console=tty0"
+CONFIG_CMDLINE="root=/dev/mmcblk0p1 rootfstype=ext3,ext2,squashfs,jffs2 console=tty0 console=ttyS2,115200n8"
 CONFIG_CMDLINE_FORCE=y
 CONFIG_COMMON_CLKDEV=y
 CONFIG_COMPAT_BRK=y
@@ -152,7 +152,7 @@ CONFIG_EXT2_FS_POSIX_ACL=y
 CONFIG_EXT2_FS_XATTR=y
 CONFIG_EXT2_FS_XIP=y
 CONFIG_EXT3_DEFAULTS_TO_ORDERED=y
-CONFIG_EXT3_FS=m
+CONFIG_EXT3_FS=y
 CONFIG_EXT3_FS_POSIX_ACL=y
 # CONFIG_EXT3_FS_SECURITY is not set
 CONFIG_EXT3_FS_XATTR=y
@@ -283,7 +283,7 @@ CONFIG_IP_NF_FILTER=y
 CONFIG_IP_NF_IPTABLES=y
 CONFIG_IR_CORE=m
 # CONFIG_ISDN is not set
-CONFIG_JBD=m
+CONFIG_JBD=y
 CONFIG_JFFS2_LZO=y
 CONFIG_JFFS2_ZLIB=y
 CONFIG_KALLSYMS=y
@@ -325,6 +325,7 @@ CONFIG_MACH_OMAP2_TUSB6010=y
 # CONFIG_MACH_OMAP_GENERIC is not set
 # CONFIG_MACH_OMAP_H4 is not set
 CONFIG_MACVLAN=m
+CONFIG_MAC_PARTITION=y
 # CONFIG_MAX1363 is not set
 CONFIG_MEDIA_ATTACH=y
 CONFIG_MEDIA_SUPPORT=m
@@ -344,6 +345,8 @@ CONFIG_MENELAUS=y
 CONFIG_MMC=y
 CONFIG_MMC_BLOCK=y
 CONFIG_MMC_OMAP=y
+CONFIG_MMC_SDHCI=y
+CONFIG_MMC_SDHCI_PLTFM=y
 CONFIG_MMC_SPI=y
 CONFIG_MMC_UNSAFE_RESUME=y
 CONFIG_MODULE_FORCE_LOAD=y
@@ -360,6 +363,8 @@ CONFIG_MTD_ONENAND_OMAP2=y
 CONFIG_MTD_ONENAND_OTP=y
 # CONFIG_MTD_ONENAND_SIM is not set
 # CONFIG_MTD_ONENAND_VERIFY_WRITE is not set
+# CONFIG_MTD_ROOTFS_ROOT_DEV is not set
+# CONFIG_MTD_ROOTFS_SPLIT is not set
 CONFIG_NAMESPACES=y
 CONFIG_NEED_DMA_MAP_STATE=y
 CONFIG_NETDEV_10000=y
@@ -389,7 +394,6 @@ CONFIG_OMAP_RESET_CLOCKS=y
 CONFIG_OMAP_WATCHDOG=y
 CONFIG_PAGEFLAGS_EXTENDED=y
 CONFIG_PAGE_OFFSET=0xC0000000
-# CONFIG_PARTITION_ADVANCED is not set
 # CONFIG_PCI_SYSCALL is not set
 CONFIG_PERF_USE_VMALLOC=y
 # CONFIG_PLAT_SPEAR is not set
@@ -423,7 +427,7 @@ CONFIG_SCHED_DEBUG=y
 CONFIG_SCSI=y
 # CONFIG_SCSI_LOWLEVEL is not set
 CONFIG_SCSI_MOD=y
-CONFIG_SDIO_UART=m
+# CONFIG_SDIO_UART is not set
 CONFIG_SENSORS_LM75=m
 CONFIG_SENSORS_TSL2563=m
 # CONFIG_SERIAL_8250_EXTENDED is not set

target/linux/omap24xx/patches-2.6.35/810-mmc-fixes.patch

@@ -0,0 +1,64 @@
+---
+ drivers/mmc/core/core.c  |    5 +++--
+ drivers/mmc/host/omap.c  |    7 +++++--
+ include/linux/mmc/host.h |    2 ++
+ 3 files changed, 10 insertions(+), 4 deletions(-)
+
+--- linux-2.6.35.orig/drivers/mmc/host/omap.c
++++ linux-2.6.35/drivers/mmc/host/omap.c
+@@ -387,7 +387,7 @@ mmc_omap_start_command(struct mmc_omap_h
+ 
+ 	mod_timer(&host->cmd_abort_timer, jiffies + HZ/2);
+ 
+-	OMAP_MMC_WRITE(host, CTO, 200);
++//	OMAP_MMC_WRITE(host, CTO, 200);
+ 	OMAP_MMC_WRITE(host, ARGL, cmd->arg & 0xffff);
+ 	OMAP_MMC_WRITE(host, ARGH, cmd->arg >> 16);
+ 	OMAP_MMC_WRITE(host, IE,
+@@ -1455,6 +1455,7 @@ static int __init mmc_omap_probe(struct
+ 	host->dma_ch = -1;
+ 
+ 	host->irq = irq;
++	host->reg_shift = (cpu_is_omap7xx() ? 1 : 2);
+ 	host->phys_base = host->mem_res->start;
+ 	host->virt_base = ioremap(res->start, res->end - res->start + 1);
+ 	if (!host->virt_base)
+@@ -1494,7 +1495,9 @@ static int __init mmc_omap_probe(struct
+ 		}
+ 	}
+ 
+-	host->reg_shift = (cpu_is_omap7xx() ? 1 : 2);
++	/* Make sure the detect workqueue was run at least once. */
++	printk(KERN_INFO "OMAP-mmc: waiting for cards...\n");
++	mmc_flush_scheduled_work();
+ 
+ 	return 0;
+ 
+--- linux-2.6.35.orig/drivers/mmc/core/core.c
++++ linux-2.6.35/drivers/mmc/core/core.c
+@@ -73,12 +73,13 @@ static int mmc_schedule_delayed_work(str
+ }
+ 
+ /*
+- * Internal function. Flush all scheduled work from the MMC work queue.
++ * Flush all scheduled work from the MMC work queue.
+  */
+-static void mmc_flush_scheduled_work(void)
++void mmc_flush_scheduled_work(void)
+ {
+ 	flush_workqueue(workqueue);
+ }
++EXPORT_SYMBOL(mmc_flush_scheduled_work);
+ 
+ /**
+  *	mmc_request_done - finish processing an MMC request
+--- linux-2.6.35.orig/include/linux/mmc/host.h
++++ linux-2.6.35/include/linux/mmc/host.h
+@@ -264,5 +264,7 @@ static inline void mmc_set_disable_delay
+ 	host->disable_delay = disable_delay;
+ }
+ 
++void mmc_flush_scheduled_work(void);
++
+ #endif
+