diff options
Diffstat (limited to 'target/linux/rb532-2.6/patches/500-Nand.patch')
| -rw-r--r-- | target/linux/rb532-2.6/patches/500-Nand.patch | 142 |
1 files changed, 1 insertions, 141 deletions
diff --git a/target/linux/rb532-2.6/patches/500-Nand.patch b/target/linux/rb532-2.6/patches/500-Nand.patch index f3244817cf..6189ecb8e5 100644 --- a/target/linux/rb532-2.6/patches/500-Nand.patch +++ b/target/linux/rb532-2.6/patches/500-Nand.patch @@ -25,144 +25,4 @@ diff -urN linux.old/drivers/mtd/nand/Makefile linux.dev/drivers/mtd/nand/Makefil obj-$(CONFIG_MTD_NAND_AUTCPU12) += autcpu12.o obj-$(CONFIG_MTD_NAND_EDB7312) += edb7312.o obj-$(CONFIG_MTD_NAND_AU1550) += au1550nd.o -diff -urN linux.old/drivers/mtd/nand/rbmipsnand.c linux.dev/drivers/mtd/nand/rbmipsnand.c ---- linux.old/drivers/mtd/nand/rbmipsnand.c 1970-01-01 01:00:00.000000000 +0100 -+++ linux.dev/drivers/mtd/nand/rbmipsnand.c 2006-12-14 04:39:52.000000000 +0100 -@@ -0,0 +1,137 @@ -+#include <linux/init.h> -+#include <linux/mtd/nand.h> -+#include <linux/mtd/mtd.h> -+#include <linux/mtd/partitions.h> -+#include <linux/delay.h> -+#include <asm/io.h> -+#include <asm/irq.h> -+#include <asm/bootinfo.h> -+ -+#define IDT434_REG_BASE ((volatile void *) KSEG1ADDR(0x18000000)) -+ -+#define GPIOF 0x050000 -+#define GPIOC 0x050004 -+#define GPIOD 0x050008 -+ -+#define GPIO_RDY (1 << 0x08) -+#define GPIO_WPX (1 << 0x09) -+#define GPIO_ALE (1 << 0x0a) -+#define GPIO_CLE (1 << 0x0b) -+ -+#define DEV2BASE 0x010020 -+ -+#define LO_WPX (1 << 0) -+#define LO_ALE (1 << 1) -+#define LO_CLE (1 << 2) -+#define LO_CEX (1 << 3) -+#define LO_FOFF (1 << 5) -+#define LO_SPICS (1 << 6) -+#define LO_ULED (1 << 7) -+ -+#define MEM32(x) *((volatile unsigned *) (x)) -+static void __iomem *p_nand; -+ -+extern void changeLatchU5(unsigned char orMask, unsigned char nandMask); -+ -+static int rb500_dev_ready(struct mtd_info *mtd) -+{ -+ return MEM32(IDT434_REG_BASE + GPIOD) & GPIO_RDY; -+} -+ -+/* -+ * hardware specific access to control-lines -+ * -+ * ctrl: -+ * NAND_CLE: bit 2 -> bit 3 -+ * NAND_ALE: bit 3 -> bit 2 -+ */ -+static void rbmips_hwcontrol500(struct mtd_info *mtd, int cmd, -+ unsigned int ctrl) -+{ -+ struct nand_chip *chip = mtd->priv; -+ unsigned char orbits, nandbits; -+ -+ if (ctrl & NAND_CTRL_CHANGE) { -+ -+ orbits = (ctrl & NAND_CLE) << 1; -+ orbits |= (ctrl & NAND_ALE) >> 1; -+ -+ nandbits = (~ctrl & NAND_CLE) << 1; -+ nandbits |= (~ctrl & NAND_ALE) >> 1; -+ -+ changeLatchU5(orbits, nandbits); -+ } -+ if (cmd != NAND_CMD_NONE) -+ writeb(cmd, chip->IO_ADDR_W); -+ -+} -+ -+static struct mtd_partition partition_info[] = { -+ { -+ name:"RouterBoard NAND Boot", -+ offset:0, -+ size:4 * 1024 * 1024}, -+ { -+ name:"RouterBoard NAND Main", -+ offset:MTDPART_OFS_NXTBLK, -+ size:MTDPART_SIZ_FULL} -+}; -+ -+static struct mtd_info rmtd; -+static struct nand_chip rnand; -+ -+static unsigned init_ok = 0; -+ -+unsigned get_rbnand_block_size(void) -+{ -+ if (init_ok) -+ return rmtd.writesize; -+ else -+ return 0; -+} -+ -+EXPORT_SYMBOL(get_rbnand_block_size); -+ -+int __init rbmips_init(void) -+{ -+ int *b; -+ memset(&rmtd, 0, sizeof(rmtd)); -+ memset(&rnand, 0, sizeof(rnand)); -+ -+ printk("RB500 nand\n"); -+ changeLatchU5(LO_WPX | LO_FOFF | LO_CEX, -+ LO_ULED | LO_ALE | LO_CLE); -+ rnand.cmd_ctrl = rbmips_hwcontrol500; -+ -+ rnand.dev_ready = rb500_dev_ready; -+ rnand.IO_ADDR_W = (unsigned char *) -+ KSEG1ADDR(MEM32(IDT434_REG_BASE + DEV2BASE)); -+ rnand.IO_ADDR_R = rnand.IO_ADDR_W; -+ -+ p_nand = (void __iomem *) ioremap((void *) 0x18a20000, 0x1000); -+ if (!p_nand) { -+ printk("RBnand Unable ioremap buffer"); -+ return -ENXIO; -+ } -+ rnand.ecc.mode = NAND_ECC_SOFT; -+ rnand.chip_delay = 25; -+ rnand.options |= NAND_NO_AUTOINCR; -+ rmtd.priv = &rnand; -+ -+ b = (int *) KSEG1ADDR(0x18010020); -+ printk("dev2base 0x%08x mask 0x%08x c 0x%08x tc 0x%08x\n", b[0], -+ b[1], b[2], b[3]); -+ -+ if (nand_scan(&rmtd, 1) && nand_scan(&rmtd, 1) -+ && nand_scan(&rmtd, 1) && nand_scan(&rmtd, 1)) { -+ printk("RBxxx nand device not found\n"); -+ iounmap((void *) p_nand); -+ return -ENXIO; -+ } -+ -+ add_mtd_partitions(&rmtd, partition_info, 2); -+ init_ok = 1; -+ return 0; -+} -+ -+module_init(rbmips_init); + |