strip the kernel version suffix from target directories, except for brcm-2.4 (the -2.4 will be included in the board name here). CONFIG_LINUX_<ver>_<board> becomes CONFIG_TARGET_<board>, same for profiles.

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@8653 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 219 insertions, 0 deletions

diff --git a/target/linux/rb532/files/drivers/mtd/nand/rbmipsnand.c b/target/linux/rb532/files/drivers/mtd/nand/rbmipsnand.c
new file mode 100644
index 000000000..35febc665
--- /dev/null
+++ b/target/linux/rb532/files/drivers/mtd/nand/rbmipsnand.c
@@ -0,0 +1,219 @@
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/platform_device.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))
+
+extern unsigned int board_type;
+
+struct rb500_nand_info {
+        struct nand_chip chip;
+        struct mtd_info mtd;
+        void __iomem *io_base;
+#ifdef CONFIG_MTD_PARTITIONS
+        int     nr_parts;
+        struct mtd_partition *parts;
+#endif
+	int	init_ok;
+	int	flags1;
+	int 	flags2;
+};
+
+static struct mtd_partition partition_info[] = {
+        {
+              name:"RouterBoard NAND Boot",
+              offset:0,
+      size:4 * 1024 * 1024},
+        {
+              name:"rootfs",
+              offset:MTDPART_OFS_NXTBLK,
+      	size:MTDPART_SIZ_FULL}
+};
+
+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);
+
+}
+
+unsigned get_rbnand_block_size(struct rb500_nand_info *data)
+{
+	if (data->init_ok)
+		return data->mtd.writesize;
+	else
+		return 0;
+}
+
+EXPORT_SYMBOL(get_rbnand_block_size);
+
+static int rbmips_probe(struct platform_device *pdev)
+{
+	struct rb500_nand_info *data;
+	int res = 0;
+	int *b;
+
+	/* Allocate memory for the structure */
+	data = kzalloc(sizeof(*data), GFP_KERNEL);
+	if (!data) {
+		dev_err(&pdev->dev, "Failed to allocate device structure\n");
+		return -ENOMEM;
+	}
+
+	data->io_base = ioremap(pdev->resource[0].start, pdev->resource[0].end - pdev->resource[0].start + 1);
+
+	if (data->io_base == NULL) {
+		dev_err(&pdev->dev, "ioremap failed\n");
+		kfree(data);
+		return -EIO;
+        }
+
+	if (board_type > 500) {
+		data->flags1 = LO_FOFF | LO_CEX;
+		data->flags2 = LO_ULED | LO_ALE | LO_CLE | LO_WPX;
+	}
+	else {
+		data->flags1 = LO_WPX | LO_FOFF | LO_CEX;
+		data->flags2 = LO_ULED | LO_ALE | LO_CLE;
+	}
+
+	changeLatchU5(data->flags1, data->flags2);
+
+	data->chip.cmd_ctrl = rbmips_hwcontrol500;
+
+	data->chip.dev_ready = rb500_dev_ready;
+	data->chip.IO_ADDR_W = (unsigned char *)KSEG1ADDR(MEM32(IDT434_REG_BASE + DEV2BASE));
+	data->chip.IO_ADDR_R = data->chip.IO_ADDR_W;
+
+	data->chip.ecc.mode = NAND_ECC_SOFT;
+	data->chip.chip_delay = 25;
+	data->chip.options |= NAND_NO_AUTOINCR;
+
+        data->chip.priv = &data;
+        data->mtd.priv = &data->chip;
+        data->mtd.owner = THIS_MODULE;
+
+	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]);
+
+	platform_set_drvdata(pdev, data);
+
+	/* Why do we need to scan 4 times ? */
+        if (nand_scan(&data->mtd, 1) && nand_scan(&data->mtd, 1) && nand_scan(&data->mtd, 1)  && nand_scan(&data->mtd, 1)) {
+                printk(KERN_INFO "RB500 nand device not found\n");
+                res = -ENXIO;
+                goto out;
+        }
+
+	printk(KERN_INFO "RB500 NAND\n");
+	add_mtd_partitions(&data->mtd, partition_info, 2);
+	data->init_ok = 1;
+
+        res = add_mtd_device(&data->mtd);
+        if (!res)
+                return res;
+
+        nand_release(&data->mtd);
+out:
+        platform_set_drvdata(pdev, NULL);
+        iounmap(data->io_base);
+        kfree(data);
+        return res;
+}
+
+static int __devexit rbmips_remove(struct platform_device *pdev)
+{
+        struct rb500_nand_info *data = platform_get_drvdata(pdev);
+
+        nand_release(&data->mtd);
+        iounmap(data->io_base);
+        kfree(data);
+
+        return 0;
+}
+
+static struct platform_driver rb500_nand_driver = {
+        .probe          = rbmips_probe,
+        .remove         = rbmips_remove,
+        .driver         = {
+                .name   = "rb500-nand",
+                .owner  = THIS_MODULE,
+        },
+};
+
+static int __init rb500_nand_init(void)
+{
+        int err;
+        err = platform_driver_register(&rb500_nand_driver);
+        return err;
+}
+
+static void __exit rb500_nand_exit(void)
+{
+        platform_driver_unregister(&rb500_nand_driver);
+}
+
+module_init(rb500_nand_init);
+module_exit(rb500_nand_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("David Goodenough, Felix Fietkau, Florian Fainelli");
+MODULE_DESCRIPTION("RouterBOARD 500 NAND driver");