diff options
author | juhosg <juhosg@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2012-12-26 10:40:51 +0000 |
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committer | juhosg <juhosg@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2012-12-26 10:40:51 +0000 |
commit | 1c7dd15a1f6af764d21f275d96e9e962e2ad6b48 (patch) | |
tree | d4066fbb4d8d35a5b51730fc91c9f2ff4c9b8ced /target/linux/mpc83xx/patches-3.3/203-mtd-add-rbppc_nand-driver.patch | |
parent | 44b21b72faa3da0a5320e0faf4f7fa2775a7a155 (diff) |
mpc83xx: nuke 3.3 support
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@34891 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/mpc83xx/patches-3.3/203-mtd-add-rbppc_nand-driver.patch')
-rw-r--r-- | target/linux/mpc83xx/patches-3.3/203-mtd-add-rbppc_nand-driver.patch | 280 |
1 files changed, 0 insertions, 280 deletions
diff --git a/target/linux/mpc83xx/patches-3.3/203-mtd-add-rbppc_nand-driver.patch b/target/linux/mpc83xx/patches-3.3/203-mtd-add-rbppc_nand-driver.patch deleted file mode 100644 index b22f2962e..000000000 --- a/target/linux/mpc83xx/patches-3.3/203-mtd-add-rbppc_nand-driver.patch +++ /dev/null @@ -1,280 +0,0 @@ ---- a/drivers/mtd/nand/Kconfig -+++ b/drivers/mtd/nand/Kconfig -@@ -436,6 +436,13 @@ config MTD_NAND_PLATFORM - devices. You will need to provide platform-specific functions - via platform_data. - -+config MTD_NAND_RB_PPC -+ tristate "MikroTik RB333/600 NAND support" -+ depends on RB_PPC -+ help -+ This option enables support for the NAND device on MikroTik -+ RouterBOARD 333/600 series boards. -+ - config MTD_ALAUDA - tristate "MTD driver for Olympus MAUSB-10 and Fujifilm DPC-R1" - depends on USB ---- a/drivers/mtd/nand/Makefile -+++ b/drivers/mtd/nand/Makefile -@@ -33,6 +33,7 @@ obj-$(CONFIG_MTD_NAND_CM_X270) += cmx27 - obj-$(CONFIG_MTD_NAND_PXA3xx) += pxa3xx_nand.o - obj-$(CONFIG_MTD_NAND_TMIO) += tmio_nand.o - obj-$(CONFIG_MTD_NAND_PLATFORM) += plat_nand.o -+obj-$(CONFIG_MTD_NAND_RB_PPC) += rbppc_nand.o - obj-$(CONFIG_MTD_ALAUDA) += alauda.o - obj-$(CONFIG_MTD_NAND_PASEMI) += pasemi_nand.o - obj-$(CONFIG_MTD_NAND_ORION) += orion_nand.o ---- /dev/null -+++ b/drivers/mtd/nand/rbppc_nand.c -@@ -0,0 +1,251 @@ -+/* -+ * Copyright (C) 2008-2009 Noah Fontes <nfontes@transtruct.org> -+ * Copyright (C) 2009 Michael Guntsche <mike@it-loops.com> -+ * Copyright (C) Mikrotik 2007 -+ * -+ * This program is free software; you can redistribute it and/or modify it -+ * under the terms of the GNU General Public License as published by the -+ * Free Software Foundation; either version 2 of the License, or (at your -+ * option) any later version. -+ */ -+ -+#include <linux/init.h> -+#include <linux/module.h> -+#include <linux/mtd/nand.h> -+#include <linux/mtd/mtd.h> -+#include <linux/mtd/partitions.h> -+#include <linux/of_platform.h> -+#include <linux/of_device.h> -+#include <linux/slab.h> -+#include <linux/delay.h> -+#include <asm/io.h> -+ -+#define DRV_NAME "rbppc_nand" -+#define DRV_VERSION "0.0.2" -+ -+static struct mtd_info rmtd; -+static struct nand_chip rnand; -+ -+struct rbppc_nand_info { -+ void *gpi; -+ void *gpo; -+ void *localbus; -+ -+ unsigned gpio_rdy; -+ unsigned gpio_nce; -+ unsigned gpio_cle; -+ unsigned gpio_ale; -+ unsigned gpio_ctrls; -+}; -+ -+/* We must use the OOB layout from yaffs 1 if we want this to be recognized -+ * properly. Borrowed from the OpenWRT patches for the RB532. -+ * -+ * See <https://dev.openwrt.org/browser/trunk/target/linux/rb532/ -+ * patches-2.6.28/025-rb532_nand_fixup.patch> for more details. -+ */ -+static struct nand_ecclayout rbppc_nand_oob_16 = { -+ .eccbytes = 6, -+ .eccpos = { 8, 9, 10, 13, 14, 15 }, -+ .oobavail = 9, -+ .oobfree = { { 0, 4 }, { 6, 2 }, { 11, 2 }, { 4, 1 } } -+}; -+ -+static struct mtd_partition rbppc_nand_partition_info[] = { -+ { -+ name: "kernel", -+ offset: 0, -+ size: 4 * 1024 * 1024, -+ }, -+ { -+ name: "rootfs", -+ offset: MTDPART_OFS_NXTBLK, -+ size: MTDPART_SIZ_FULL, -+ }, -+}; -+ -+static int rbppc_nand_dev_ready(struct mtd_info *mtd) { -+ struct nand_chip *chip = mtd->priv; -+ struct rbppc_nand_info *priv = chip->priv; -+ -+ return in_be32(priv->gpi) & priv->gpio_rdy; -+} -+ -+static void rbppc_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl) { -+ struct nand_chip *chip = mtd->priv; -+ struct rbppc_nand_info *priv = chip->priv; -+ -+ if (ctrl & NAND_CTRL_CHANGE) { -+ unsigned val = in_be32(priv->gpo); -+ if (!(val & priv->gpio_nce)) { -+ /* make sure Local Bus has done NAND operations */ -+ readb(priv->localbus); -+ } -+ -+ if (ctrl & NAND_CLE) { -+ val |= priv->gpio_cle; -+ } else { -+ val &= ~priv->gpio_cle; -+ } -+ if (ctrl & NAND_ALE) { -+ val |= priv->gpio_ale; -+ } else { -+ val &= ~priv->gpio_ale; -+ } -+ if (!(ctrl & NAND_NCE)) { -+ val |= priv->gpio_nce; -+ } else { -+ val &= ~priv->gpio_nce; -+ } -+ out_be32(priv->gpo, val); -+ -+ /* make sure GPIO output has changed */ -+ val ^= in_be32(priv->gpo); -+ if (val & priv->gpio_ctrls) { -+ printk(KERN_ERR "rbppc_nand_hwcontrol: NAND GPO change failed 0x%08x\n", val); -+ } -+ } -+ -+ if (cmd != NAND_CMD_NONE) writeb(cmd, chip->IO_ADDR_W); -+} -+ -+static void rbppc_nand_read_buf(struct mtd_info *mtd, uint8_t *buf, int len) -+{ -+ struct nand_chip *chip = mtd->priv; -+ memcpy(buf, chip->IO_ADDR_R, len); -+} -+ -+static unsigned init_ok = 0; -+ -+static int __devinit rbppc_nand_probe(struct platform_device *pdev) -+{ -+ struct device_node *gpio; -+ struct device_node *nnand; -+ struct resource res; -+ struct rbppc_nand_info *info; -+ void *baddr; -+ const unsigned *rdy, *nce, *cle, *ale; -+ -+ printk(KERN_INFO "rbppc_nand_probe: MikroTik RouterBOARD 333/600 series NAND driver, version " DRV_VERSION "\n"); -+ -+ info = kmalloc(sizeof(*info), GFP_KERNEL); -+ -+ rdy = of_get_property(pdev->dev.of_node, "rdy", NULL); -+ nce = of_get_property(pdev->dev.of_node, "nce", NULL); -+ cle = of_get_property(pdev->dev.of_node, "cle", NULL); -+ ale = of_get_property(pdev->dev.of_node, "ale", NULL); -+ -+ if (!rdy || !nce || !cle || !ale) { -+ printk(KERN_ERR "rbppc_nand_probe: GPIO properties are missing\n"); -+ goto err; -+ } -+ if (rdy[0] != nce[0] || rdy[0] != cle[0] || rdy[0] != ale[0]) { -+ printk(KERN_ERR "rbppc_nand_probe: Different GPIOs are not supported\n"); -+ goto err; -+ } -+ -+ gpio = of_find_node_by_phandle(rdy[0]); -+ if (!gpio) { -+ printk(KERN_ERR "rbppc_nand_probe: No GPIO<%x> node found\n", *rdy); -+ goto err; -+ } -+ if (of_address_to_resource(gpio, 0, &res)) { -+ printk(KERN_ERR "rbppc_nand_probe: No reg property in GPIO found\n"); -+ goto err; -+ } -+ info->gpo = ioremap_nocache(res.start, res.end - res.start + 1); -+ -+ if (!of_address_to_resource(gpio, 1, &res)) { -+ info->gpi = ioremap_nocache(res.start, res.end - res.start + 1); -+ } else { -+ info->gpi = info->gpo; -+ } -+ of_node_put(gpio); -+ -+ info->gpio_rdy = 1 << (31 - rdy[1]); -+ info->gpio_nce = 1 << (31 - nce[1]); -+ info->gpio_cle = 1 << (31 - cle[1]); -+ info->gpio_ale = 1 << (31 - ale[1]); -+ info->gpio_ctrls = info->gpio_nce | info->gpio_cle | info->gpio_ale; -+ -+ nnand = of_find_node_by_name(NULL, "nnand"); -+ if (!nnand) { -+ printk("rbppc_nand_probe: No nNAND found\n"); -+ goto err; -+ } -+ if (of_address_to_resource(nnand, 0, &res)) { -+ printk("rbppc_nand_probe: No reg property in nNAND found\n"); -+ goto err; -+ } -+ of_node_put(nnand); -+ info->localbus = ioremap_nocache(res.start, res.end - res.start + 1); -+ -+ if (of_address_to_resource(pdev->dev.of_node, 0, &res)) { -+ printk("rbppc_nand_probe: No reg property found\n"); -+ goto err; -+ } -+ baddr = ioremap_nocache(res.start, res.end - res.start + 1); -+ -+ memset(&rnand, 0, sizeof(rnand)); -+ rnand.cmd_ctrl = rbppc_nand_cmd_ctrl; -+ rnand.dev_ready = rbppc_nand_dev_ready; -+ rnand.read_buf = rbppc_nand_read_buf; -+ rnand.IO_ADDR_W = baddr; -+ rnand.IO_ADDR_R = baddr; -+ rnand.priv = info; -+ -+ memset(&rmtd, 0, sizeof(rmtd)); -+ rnand.ecc.mode = NAND_ECC_SOFT; -+ rnand.ecc.layout = &rbppc_nand_oob_16; -+ rnand.chip_delay = 25; -+ rnand.options |= NAND_NO_AUTOINCR; -+ rmtd.priv = &rnand; -+ rmtd.owner = THIS_MODULE; -+ -+ if (nand_scan(&rmtd, 1) && nand_scan(&rmtd, 1) && nand_scan(&rmtd, 1) && nand_scan(&rmtd, 1)) { -+ printk(KERN_ERR "rbppc_nand_probe: RouterBOARD NAND device not found\n"); -+ return -ENXIO; -+ } -+ -+ mtd_device_parse_register(&rmtd, NULL, 0, rbppc_nand_partition_info, 2); -+ init_ok = 1; -+ return 0; -+ -+err: -+ kfree(info); -+ return -1; -+} -+ -+static struct of_device_id rbppc_nand_ids[] = { -+ { .name = "nand", }, -+ { }, -+}; -+ -+static struct platform_driver rbppc_nand_driver = { -+ .probe = rbppc_nand_probe, -+ .driver = { -+ .name = "rbppc-nand", -+ .owner = THIS_MODULE, -+ .of_match_table = rbppc_nand_ids, -+ }, -+}; -+ -+static int __init rbppc_nand_init(void) -+{ -+ return platform_driver_register(&rbppc_nand_driver); -+} -+ -+static void __exit rbppc_nand_exit(void) -+{ -+ platform_driver_unregister(&rbppc_nand_driver); -+} -+ -+MODULE_AUTHOR("Mikrotikls SIA"); -+MODULE_AUTHOR("Noah Fontes"); -+MODULE_AUTHOR("Michael Guntsche"); -+MODULE_DESCRIPTION("MikroTik RouterBOARD 333/600 series NAND driver"); -+MODULE_LICENSE("GPL"); -+MODULE_VERSION(DRV_VERSION); -+ -+module_init(rbppc_nand_init); -+module_exit(rbppc_nand_exit); |