From 99f2f68b6fb7caad7689ae9ad73da43f54ac0337 Mon Sep 17 00:00:00 2001 From: nbd Date: Thu, 26 Oct 2006 01:08:41 +0000 Subject: Add NAND flash/YAFFS2 patches for RB532 by David Goodenough Read the kernel command line from an otherwise unused area of the kernel image (will be used for changing the command line on the fly when copying the system from CF to NAND) git-svn-id: svn://svn.openwrt.org/openwrt/trunk@5296 3c298f89-4303-0410-b956-a3cf2f4a3e73 --- .../rb532-2.6/patches/100-rb5xx_support.patch | 61 +++++++++------------- 1 file changed, 25 insertions(+), 36 deletions(-) (limited to 'target/linux/rb532-2.6/patches/100-rb5xx_support.patch') diff --git a/target/linux/rb532-2.6/patches/100-rb5xx_support.patch b/target/linux/rb532-2.6/patches/100-rb5xx_support.patch index f846c78c2..9a8f21d20 100644 --- a/target/linux/rb532-2.6/patches/100-rb5xx_support.patch +++ b/target/linux/rb532-2.6/patches/100-rb5xx_support.patch @@ -567,7 +567,7 @@ diff -urN linux.old/arch/mips/pci/pci-rc32434.c linux.dev/arch/mips/pci/pci-rc32 diff -urN linux.old/arch/mips/rb500/devices.c linux.dev/arch/mips/rb500/devices.c --- linux.old/arch/mips/rb500/devices.c 1970-01-01 01:00:00.000000000 +0100 +++ linux.dev/arch/mips/rb500/devices.c 2006-10-11 21:56:38.000000000 +0200 -@@ -0,0 +1,211 @@ +@@ -0,0 +1,198 @@ +#include +#include +#include @@ -677,10 +677,25 @@ diff -urN linux.old/arch/mips/rb500/devices.c linux.dev/arch/mips/rb500/devices. + .num_resources = ARRAY_SIZE(cf_slot0_res), +}; + ++/* Resources and device for NAND. There is no data needed and no irqs, so just define the memory used. */ ++static struct resource nand_slot0_res[] = { ++ { ++ .name = "nand_membase", ++ .flags = IORESOURCE_MEM ++ } ++}; ++ ++static struct platform_device nand_slot0 = { ++ .id = 0, ++ .name = "rb500-nand", ++ .resource = nand_slot0_res, ++ .num_resources = ARRAY_SIZE(nand_slot0_res), ++}; + + +static struct platform_device *rb500_devs[] = { + &korina_dev0, ++ &nand_slot0, + &cf_slot0 +}; + @@ -711,6 +726,7 @@ diff -urN linux.old/arch/mips/rb500/devices.c linux.dev/arch/mips/rb500/devices. + +/* DEVICE CONTROLLER 1 */ +#define CFG_DC_DEV1 (void*)0xb8010010 ++#define CFG_DC_DEV2 (void*)0xb8010020 +#define CFG_DC_DEVBASE 0x0 +#define CFG_DC_DEVMASK 0x4 +#define CFG_DC_DEVC 0x8 @@ -726,6 +742,10 @@ diff -urN linux.old/arch/mips/rb500/devices.c linux.dev/arch/mips/rb500/devices. + cf_slot0_res[0].start = readl(CFG_DC_DEV1 + CFG_DC_DEVBASE); + cf_slot0_res[0].end = cf_slot0_res[0].start + 0x1000; + } ++ ++ /* There is always a NAND device */ ++ nand_slot0_res[0].start = readl( CFG_DC_DEV2 + CFG_DC_DEVBASE); ++ nand_slot0_res[0].end = nand_slot0_res[0].start + 0x1000; + + return platform_add_devices(rb500_devs, ARRAY_SIZE(rb500_devs)); +} @@ -745,39 +765,6 @@ diff -urN linux.old/arch/mips/rb500/devices.c linux.dev/arch/mips/rb500/devices. +extern void block2mtd_setup(char *initstr); +extern void mount_devfs_fs(void); + -+static int __init setup_mtd(void) -+{ -+ struct hd_struct **part; -+ int num = 0, i; -+ char initstr[64]; -+ -+ if (cf_slot0_data.gd == NULL) -+ return 0; -+ -+ /* count partitions */ -+ part = cf_slot0_data.gd->part; -+ while (part[num] != NULL) { -+ num++; -+ } -+ -+ if (num < 2) -+ return 0; -+ -+ mount_devfs_fs(); -+ printk("Setting up block2mtd devices\n"); -+ -+ block2mtd_setup("/dev/cf/card0/part1,131072,kernel"); -+ block2mtd_setup("/dev/cf/card0/part2,131072,rootfs"); -+ -+ for (i = 2; part[i]; i++) { -+ sprintf(initstr, "/dev/cf/card0/part%d,131072,part%d", i + 1, i + 1); -+ block2mtd_setup(initstr); -+ } -+ -+ return 0; -+} -+ -+late_initcall(setup_mtd); +#endif diff -urN linux.old/arch/mips/rb500/early_serial.c linux.dev/arch/mips/rb500/early_serial.c --- linux.old/arch/mips/rb500/early_serial.c 1970-01-01 01:00:00.000000000 +0100 @@ -1262,7 +1249,7 @@ diff -urN linux.old/arch/mips/rb500/Makefile linux.dev/arch/mips/rb500/Makefile diff -urN linux.old/arch/mips/rb500/misc.c linux.dev/arch/mips/rb500/misc.c --- linux.old/arch/mips/rb500/misc.c 1970-01-01 01:00:00.000000000 +0100 +++ linux.dev/arch/mips/rb500/misc.c 2006-10-11 21:56:38.000000000 +0200 -@@ -0,0 +1,54 @@ +@@ -0,0 +1,56 @@ +#include +#include /* printk() */ +#include /* size_t */ @@ -1273,7 +1260,7 @@ diff -urN linux.old/arch/mips/rb500/misc.c linux.dev/arch/mips/rb500/misc.c +#define GPIO_BADDR 0xb8050000 + + -+static unsigned char *devCtl3Base = (unsigned char *) KSEG1ADDR(0x18010030); ++static volatile unsigned char *devCtl3Base = 0; +static unsigned char latchU5State = 0; +static spinlock_t clu5Lock = SPIN_LOCK_UNLOCKED; + @@ -1294,6 +1281,8 @@ diff -urN linux.old/arch/mips/rb500/misc.c linux.dev/arch/mips/rb500/misc.c + unsigned flags; + spin_lock_irqsave(&clu5Lock, flags); + latchU5State = (latchU5State | orMask) & ~nandMask; ++ if( !devCtl3Base) devCtl3Base = (volatile unsigned char *) ++ KSEG1ADDR(*(volatile unsigned *) KSEG1ADDR(0x18010030)); + *devCtl3Base = latchU5State; + spin_unlock_irqrestore(&clu5Lock, flags); +} -- cgit v1.2.3