bump kernel to 3.14.26

1 files changed, 351 insertions, 0 deletions

diff --git a/target/mips/mikrotik-rb4xx/patches/3.14.26/0001-mtd-add-rb4xx-nand-driver.patch b/target/mips/mikrotik-rb4xx/patches/3.14.26/0001-mtd-add-rb4xx-nand-driver.patch
new file mode 100644
index 000000000..8199de991
--- /dev/null
+++ b/target/mips/mikrotik-rb4xx/patches/3.14.26/0001-mtd-add-rb4xx-nand-driver.patch
@@ -0,0 +1,351 @@
+From 1e692cc0c53202b932eedabd0315107910c5b093 Mon Sep 17 00:00:00 2001
+From: Phil Sutter <phil@nwl.cc>
+Date: Tue, 13 May 2014 00:08:54 +0200
+Subject: [PATCH] mtd: add rb4xx nand driver
+
+---
+ drivers/mtd/nand/Kconfig      |   4 +
+ drivers/mtd/nand/Makefile     |   1 +
+ drivers/mtd/nand/rb4xx_nand.c | 305 ++++++++++++++++++++++++++++++++++++++++++
+ 3 files changed, 310 insertions(+)
+ create mode 100644 drivers/mtd/nand/rb4xx_nand.c
+
+diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig
+index 90ff447..bb01309 100644
+--- a/drivers/mtd/nand/Kconfig
++++ b/drivers/mtd/nand/Kconfig
+@@ -510,4 +510,8 @@ config MTD_NAND_XWAY
+ 	  Enables support for NAND Flash chips on Lantiq XWAY SoCs. NAND is attached
+ 	  to the External Bus Unit (EBU).
+ 
++config MTD_NAND_RB4XX
++	tristate "NAND flash driver for RouterBoard 4xx series"
++	depends on MTD_NAND && ATH79_MACH_RB4XX
++
+ endif # MTD_NAND
+diff --git a/drivers/mtd/nand/Makefile b/drivers/mtd/nand/Makefile
+index 542b568..e2b5e1c 100644
+--- a/drivers/mtd/nand/Makefile
++++ b/drivers/mtd/nand/Makefile
+@@ -31,6 +31,7 @@ obj-$(CONFIG_MTD_NAND_CM_X270)		+= cmx270_nand.o
+ obj-$(CONFIG_MTD_NAND_PXA3xx)		+= pxa3xx_nand.o
+ obj-$(CONFIG_MTD_NAND_TMIO)		+= tmio_nand.o
+ obj-$(CONFIG_MTD_NAND_PLATFORM)		+= plat_nand.o
++obj-$(CONFIG_MTD_NAND_RB4XX)		+= rb4xx_nand.o
+ obj-$(CONFIG_MTD_NAND_PASEMI)		+= pasemi_nand.o
+ obj-$(CONFIG_MTD_NAND_ORION)		+= orion_nand.o
+ obj-$(CONFIG_MTD_NAND_FSL_ELBC)		+= fsl_elbc_nand.o
+diff --git a/drivers/mtd/nand/rb4xx_nand.c b/drivers/mtd/nand/rb4xx_nand.c
+new file mode 100644
+index 0000000..5b9841b
+--- /dev/null
++++ b/drivers/mtd/nand/rb4xx_nand.c
+@@ -0,0 +1,305 @@
++/*
++ *  NAND flash driver for the MikroTik RouterBoard 4xx series
++ *
++ *  Copyright (C) 2008-2011 Gabor Juhos <juhosg@openwrt.org>
++ *  Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
++ *
++ *  This file was based on the driver for Linux 2.6.22 published by
++ *  MikroTik for their RouterBoard 4xx series devices.
++ *
++ *  This program is free software; you can redistribute it and/or modify it
++ *  under the terms of the GNU General Public License version 2 as published
++ *  by the Free Software Foundation.
++ */
++
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/init.h>
++#include <linux/mtd/nand.h>
++#include <linux/mtd/mtd.h>
++#include <linux/mtd/partitions.h>
++#include <linux/platform_device.h>
++#include <linux/delay.h>
++#include <linux/io.h>
++#include <linux/gpio.h>
++#include <linux/slab.h>
++
++#include <asm/mach-ath79/ath79.h>
++#include <asm/mach-ath79/rb4xx_cpld.h>
++
++#define DRV_NAME        "rb4xx-nand"
++#define DRV_VERSION     "0.2.0"
++#define DRV_DESC        "NAND flash driver for RouterBoard 4xx series"
++
++#define RB4XX_NAND_GPIO_READY	5
++#define RB4XX_NAND_GPIO_ALE	37
++#define RB4XX_NAND_GPIO_CLE	38
++#define RB4XX_NAND_GPIO_NCE	39
++
++struct rb4xx_nand_info {
++	struct nand_chip	chip;
++	struct mtd_info		mtd;
++};
++
++/*
++ * We need to use the OLD Yaffs-1 OOB layout, otherwise the RB bootloader
++ * will not be able to find the kernel that we load.
++ */
++static struct nand_ecclayout rb4xx_nand_ecclayout = {
++	.eccbytes	= 6,
++	.eccpos		= { 8, 9, 10, 13, 14, 15 },
++	.oobavail	= 9,
++	.oobfree	= { { 0, 4 }, { 6, 2 }, { 11, 2 }, { 4, 1 } }
++};
++
++static struct mtd_partition rb4xx_nand_partitions[] = {
++	{
++		.name	= "booter",
++		.offset	= 0,
++		.size	= (256 * 1024),
++		.mask_flags = MTD_WRITEABLE,
++	},
++	{
++		.name	= "kernel",
++		.offset	= (256 * 1024),
++		.size	= (4 * 1024 * 1024) - (256 * 1024),
++	},
++	{
++		.name	= "rootfs",
++		.offset	= MTDPART_OFS_NXTBLK,
++		.size	= MTDPART_SIZ_FULL,
++	},
++};
++
++static int rb4xx_nand_dev_ready(struct mtd_info *mtd)
++{
++	return gpio_get_value_cansleep(RB4XX_NAND_GPIO_READY);
++}
++
++static void rb4xx_nand_write_cmd(unsigned char cmd)
++{
++	unsigned char data = cmd;
++	int err;
++
++	err = rb4xx_cpld_write(&data, 1);
++	if (err)
++		pr_err("rb4xx_nand: write cmd failed, err=%d\n", err);
++}
++
++static void rb4xx_nand_cmd_ctrl(struct mtd_info *mtd, int cmd,
++				unsigned int ctrl)
++{
++	if (ctrl & NAND_CTRL_CHANGE) {
++		gpio_set_value_cansleep(RB4XX_NAND_GPIO_CLE,
++					(ctrl & NAND_CLE) ? 1 : 0);
++		gpio_set_value_cansleep(RB4XX_NAND_GPIO_ALE,
++					(ctrl & NAND_ALE) ? 1 : 0);
++		gpio_set_value_cansleep(RB4XX_NAND_GPIO_NCE,
++					(ctrl & NAND_NCE) ? 0 : 1);
++	}
++
++	if (cmd != NAND_CMD_NONE)
++		rb4xx_nand_write_cmd(cmd);
++}
++
++static unsigned char rb4xx_nand_read_byte(struct mtd_info *mtd)
++{
++	unsigned char data = 0;
++	int err;
++
++	err = rb4xx_cpld_read(&data, NULL, 1);
++	if (err) {
++		pr_err("rb4xx_nand: read data failed, err=%d\n", err);
++		data = 0xff;
++	}
++
++	return data;
++}
++
++static void rb4xx_nand_write_buf(struct mtd_info *mtd, const unsigned char *buf,
++				 int len)
++{
++	int err;
++
++	err = rb4xx_cpld_write(buf, len);
++	if (err)
++		pr_err("rb4xx_nand: write buf failed, err=%d\n", err);
++}
++
++static void rb4xx_nand_read_buf(struct mtd_info *mtd, unsigned char *buf,
++				int len)
++{
++	int err;
++
++	err = rb4xx_cpld_read(buf, NULL, len);
++	if (err)
++		pr_err("rb4xx_nand: read buf failed, err=%d\n", err);
++}
++
++static int rb4xx_nand_probe(struct platform_device *pdev)
++{
++	struct rb4xx_nand_info	*info;
++	int ret;
++
++	printk(KERN_INFO DRV_DESC " version " DRV_VERSION "\n");
++
++	ret = gpio_request(RB4XX_NAND_GPIO_READY, "NAND RDY");
++	if (ret) {
++		dev_err(&pdev->dev, "unable to request gpio %d\n",
++			RB4XX_NAND_GPIO_READY);
++		goto err;
++	}
++
++	ret = gpio_direction_input(RB4XX_NAND_GPIO_READY);
++	if (ret) {
++		dev_err(&pdev->dev, "unable to set input mode on gpio %d\n",
++			RB4XX_NAND_GPIO_READY);
++		goto err_free_gpio_ready;
++	}
++
++	ret = gpio_request(RB4XX_NAND_GPIO_ALE, "NAND ALE");
++	if (ret) {
++		dev_err(&pdev->dev, "unable to request gpio %d\n",
++			RB4XX_NAND_GPIO_ALE);
++		goto err_free_gpio_ready;
++	}
++
++	ret = gpio_direction_output(RB4XX_NAND_GPIO_ALE, 0);
++	if (ret) {
++		dev_err(&pdev->dev, "unable to set output mode on gpio %d\n",
++			RB4XX_NAND_GPIO_ALE);
++		goto err_free_gpio_ale;
++	}
++
++	ret = gpio_request(RB4XX_NAND_GPIO_CLE, "NAND CLE");
++	if (ret) {
++		dev_err(&pdev->dev, "unable to request gpio %d\n",
++			RB4XX_NAND_GPIO_CLE);
++		goto err_free_gpio_ale;
++	}
++
++	ret = gpio_direction_output(RB4XX_NAND_GPIO_CLE, 0);
++	if (ret) {
++		dev_err(&pdev->dev, "unable to set output mode on gpio %d\n",
++			RB4XX_NAND_GPIO_CLE);
++		goto err_free_gpio_cle;
++	}
++
++	ret = gpio_request(RB4XX_NAND_GPIO_NCE, "NAND NCE");
++	if (ret) {
++		dev_err(&pdev->dev, "unable to request gpio %d\n",
++			RB4XX_NAND_GPIO_NCE);
++		goto err_free_gpio_cle;
++	}
++
++	ret = gpio_direction_output(RB4XX_NAND_GPIO_NCE, 1);
++	if (ret) {
++		dev_err(&pdev->dev, "unable to set output mode on gpio %d\n",
++			RB4XX_NAND_GPIO_ALE);
++		goto err_free_gpio_nce;
++	}
++
++	info = kzalloc(sizeof(*info), GFP_KERNEL);
++	if (!info) {
++		dev_err(&pdev->dev, "rb4xx-nand: no memory for private data\n");
++		ret = -ENOMEM;
++		goto err_free_gpio_nce;
++	}
++
++	info->chip.priv	= &info;
++	info->mtd.priv	= &info->chip;
++	info->mtd.owner	= THIS_MODULE;
++
++	info->chip.cmd_ctrl	= rb4xx_nand_cmd_ctrl;
++	info->chip.dev_ready	= rb4xx_nand_dev_ready;
++	info->chip.read_byte	= rb4xx_nand_read_byte;
++	info->chip.write_buf	= rb4xx_nand_write_buf;
++	info->chip.read_buf	= rb4xx_nand_read_buf;
++
++	info->chip.chip_delay	= 25;
++	info->chip.ecc.mode	= NAND_ECC_SOFT;
++
++	platform_set_drvdata(pdev, info);
++
++	ret = nand_scan_ident(&info->mtd, 1, NULL);
++	if (ret) {
++		ret = -ENXIO;
++		goto err_free_info;
++	}
++
++	if (info->mtd.writesize == 512)
++		info->chip.ecc.layout = &rb4xx_nand_ecclayout;
++
++	ret = nand_scan_tail(&info->mtd);
++	if (ret) {
++		return -ENXIO;
++		goto err_set_drvdata;
++	}
++
++	mtd_device_register(&info->mtd, rb4xx_nand_partitions,
++				ARRAY_SIZE(rb4xx_nand_partitions));
++	if (ret)
++		goto err_release_nand;
++
++	return 0;
++
++err_release_nand:
++	nand_release(&info->mtd);
++err_set_drvdata:
++	platform_set_drvdata(pdev, NULL);
++err_free_info:
++	kfree(info);
++err_free_gpio_nce:
++	gpio_free(RB4XX_NAND_GPIO_NCE);
++err_free_gpio_cle:
++	gpio_free(RB4XX_NAND_GPIO_CLE);
++err_free_gpio_ale:
++	gpio_free(RB4XX_NAND_GPIO_ALE);
++err_free_gpio_ready:
++	gpio_free(RB4XX_NAND_GPIO_READY);
++err:
++	return ret;
++}
++
++static int rb4xx_nand_remove(struct platform_device *pdev)
++{
++	struct rb4xx_nand_info *info = platform_get_drvdata(pdev);
++
++	nand_release(&info->mtd);
++	platform_set_drvdata(pdev, NULL);
++	kfree(info);
++	gpio_free(RB4XX_NAND_GPIO_NCE);
++	gpio_free(RB4XX_NAND_GPIO_CLE);
++	gpio_free(RB4XX_NAND_GPIO_ALE);
++	gpio_free(RB4XX_NAND_GPIO_READY);
++
++	return 0;
++}
++
++static struct platform_driver rb4xx_nand_driver = {
++	.probe	= rb4xx_nand_probe,
++	.remove	= rb4xx_nand_remove,
++	.driver	= {
++		.name	= DRV_NAME,
++		.owner	= THIS_MODULE,
++	},
++};
++
++static int __init rb4xx_nand_init(void)
++{
++	return platform_driver_register(&rb4xx_nand_driver);
++}
++
++static void __exit rb4xx_nand_exit(void)
++{
++	platform_driver_unregister(&rb4xx_nand_driver);
++}
++
++module_init(rb4xx_nand_init);
++module_exit(rb4xx_nand_exit);
++
++MODULE_DESCRIPTION(DRV_DESC);
++MODULE_VERSION(DRV_VERSION);
++MODULE_AUTHOR("Gabor Juhos <juhosg@openwrt.org>");
++MODULE_AUTHOR("Imre Kaloz <kaloz@openwrt.org>");
++MODULE_LICENSE("GPL v2");
+-- 
+1.8.5.3
+