Add NAND flash/YAFFS2 patches for RB532 by David Goodenough

[openwrt/svn-archive/archive.git] / 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 f846c78c2b5418f465a37c752128ae74f3f38ce2..9a8f21d2076f056972697be3552736460d52c54b 100644 (file)
--- 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 <linux/kernel.h>
 +#include <linux/init.h>
 +#include <linux/module.h>
@@ -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 <linux/module.h>
 +#include <linux/kernel.h>   /* printk() */
 +#include <linux/types.h>    /* 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);
 +}