diff options
Diffstat (limited to 'target/linux/brcm47xx/patches-3.0/0018-mtd-bcm47xx-add-parallel-flash-driver.patch')
| -rw-r--r-- | target/linux/brcm47xx/patches-3.0/0018-mtd-bcm47xx-add-parallel-flash-driver.patch | 240 |
1 files changed, 0 insertions, 240 deletions
diff --git a/target/linux/brcm47xx/patches-3.0/0018-mtd-bcm47xx-add-parallel-flash-driver.patch b/target/linux/brcm47xx/patches-3.0/0018-mtd-bcm47xx-add-parallel-flash-driver.patch deleted file mode 100644 index 0ab81f33b8..0000000000 --- a/target/linux/brcm47xx/patches-3.0/0018-mtd-bcm47xx-add-parallel-flash-driver.patch +++ /dev/null @@ -1,240 +0,0 @@ -From fb261916ee9cd9eede57f6255ffd39e4145da48e Mon Sep 17 00:00:00 2001 -From: Hauke Mehrtens <hauke@hauke-m.de> -Date: Sun, 17 Jul 2011 14:55:18 +0200 -Subject: [PATCH 18/26] mtd: bcm47xx: add parallel flash driver - - -Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> ---- - drivers/mtd/maps/Kconfig | 9 ++ - drivers/mtd/maps/Makefile | 1 + - drivers/mtd/maps/bcm47xx-pflash.c | 198 +++++++++++++++++++++++++++++++++++++ - 3 files changed, 208 insertions(+), 0 deletions(-) - create mode 100644 drivers/mtd/maps/bcm47xx-pflash.c - ---- a/drivers/mtd/maps/Kconfig -+++ b/drivers/mtd/maps/Kconfig -@@ -264,6 +264,15 @@ config MTD_LANTIQ - help - Support for NOR flash attached to the Lantiq SoC's External Bus Unit. - -+config MTD_BCM47XX_PFLASH -+ tristate "bcm47xx parallel flash support" -+ default y -+ depends on BCM47XX -+ select MTD_PARTITIONS -+ select MTD_BCM47XX_PARTS -+ help -+ Support for bcm47xx parallel flash -+ - config MTD_DILNETPC - tristate "CFI Flash device mapped on DIL/Net PC" - depends on X86 && MTD_CFI_INTELEXT && BROKEN ---- a/drivers/mtd/maps/Makefile -+++ b/drivers/mtd/maps/Makefile -@@ -60,3 +60,4 @@ obj-$(CONFIG_MTD_GPIO_ADDR) += gpio-addr - obj-$(CONFIG_MTD_BCM963XX) += bcm963xx-flash.o - obj-$(CONFIG_MTD_LATCH_ADDR) += latch-addr-flash.o - obj-$(CONFIG_MTD_LANTIQ) += lantiq-flash.o -+obj-$(CONFIG_MTD_BCM47XX_PFLASH)+= bcm47xx-pflash.o ---- /dev/null -+++ b/drivers/mtd/maps/bcm47xx-pflash.c -@@ -0,0 +1,198 @@ -+/* -+ * Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org> -+ * Copyright (C) 2005 Waldemar Brodkorb <wbx@openwrt.org> -+ * Copyright (C) 2004 Florian Schirmer (jolt@tuxbox.org) -+ * -+ * original functions for finding root filesystem from Mike Baker -+ * -+ * 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. -+ * -+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED -+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF -+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN -+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, -+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT -+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF -+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON -+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF -+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -+ * -+ * You should have received a copy of the GNU General Public License along -+ * with this program; if not, write to the Free Software Foundation, Inc., -+ * 675 Mass Ave, Cambridge, MA 02139, USA. -+ * -+ * Copyright 2001-2003, Broadcom Corporation -+ * All Rights Reserved. -+ * -+ * THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY -+ * KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM -+ * SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS -+ * FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE. -+ * -+ * Flash mapping for BCM947XX boards -+ */ -+ -+#define pr_fmt(fmt) "bcm47xx_pflash: " fmt -+#include <linux/init.h> -+#include <linux/module.h> -+#include <linux/types.h> -+#include <linux/kernel.h> -+#include <linux/sched.h> -+#include <linux/mtd/mtd.h> -+#include <linux/mtd/map.h> -+#include <linux/mtd/partitions.h> -+#include <linux/io.h> -+#include <asm/mach-bcm47xx/bcm47xx.h> -+#include <linux/platform_device.h> -+ -+#define WINDOW_ADDR 0x1fc00000 -+#define WINDOW_SIZE 0x400000 -+#define BUSWIDTH 2 -+ -+static struct mtd_info *bcm47xx_mtd; -+ -+static void bcm47xx_map_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len) -+{ -+ if (len == 1) { -+ memcpy_fromio(to, map->virt + from, len); -+ } else { -+ int i; -+ u16 *dest = (u16 *) to; -+ u16 *src = (u16 *) (map->virt + from); -+ for (i = 0; i < (len / 2); i++) -+ dest[i] = src[i]; -+ if (len & 1) -+ *((u8 *)dest+len-1) = src[i] & 0xff; -+ } -+} -+ -+static struct map_info bcm47xx_map = { -+ name: "Physically mapped flash", -+ size : WINDOW_SIZE, -+ bankwidth : BUSWIDTH, -+ phys : WINDOW_ADDR, -+}; -+ -+static const char *probes[] = { "bcm47xx", NULL }; -+ -+static int bcm47xx_mtd_probe(struct platform_device *pdev) -+{ -+#ifdef CONFIG_BCM47XX_SSB -+ struct ssb_chipcommon *ssb_cc; -+#endif -+#ifdef CONFIG_BCM47XX_BCMA -+ struct bcma_drv_cc *bcma_cc; -+#endif -+ int ret = 0; -+ struct mtd_partition *partitions = NULL; -+ int num_partitions = 0; -+ -+ switch (bcm47xx_bus_type) { -+#ifdef CONFIG_BCM47XX_SSB -+ case BCM47XX_BUS_TYPE_SSB: -+ ssb_cc = &bcm47xx_bus.ssb.chipco; -+ if (ssb_cc->flash_type != SSB_PFLASH) -+ return -ENODEV; -+ -+ bcm47xx_map.phys = ssb_cc->pflash.window; -+ bcm47xx_map.size = ssb_cc->pflash.window_size; -+ bcm47xx_map.bankwidth = ssb_cc->pflash.buswidth; -+ break; -+#endif -+#ifdef CONFIG_BCM47XX_BCMA -+ case BCM47XX_BUS_TYPE_BCMA: -+ bcma_cc = &bcm47xx_bus.bcma.bus.drv_cc; -+ if (bcma_cc->flash_type != BCMA_PFLASH) -+ return -ENODEV; -+ -+ bcm47xx_map.phys = bcma_cc->pflash.window; -+ bcm47xx_map.size = bcma_cc->pflash.window_size; -+ bcm47xx_map.bankwidth = bcma_cc->pflash.buswidth; -+ break; -+#endif -+ } -+ -+ pr_notice("flash init: 0x%08x 0x%08lx\n", bcm47xx_map.phys, bcm47xx_map.size); -+ bcm47xx_map.virt = ioremap_nocache(bcm47xx_map.phys, bcm47xx_map.size); -+ -+ if (!bcm47xx_map.virt) { -+ pr_err("Failed to ioremap\n"); -+ return -EIO; -+ } -+ -+ simple_map_init(&bcm47xx_map); -+ /* override copy_from routine */ -+ bcm47xx_map.copy_from = bcm47xx_map_copy_from; -+ -+ bcm47xx_mtd = do_map_probe("cfi_probe", &bcm47xx_map); -+ if (!bcm47xx_mtd) { -+ pr_err("Failed to do_map_probe\n"); -+ ret = -ENXIO; -+ goto err_unmap; -+ } -+ bcm47xx_mtd->owner = THIS_MODULE; -+ -+ pr_notice("Flash device: 0x%lx at 0x%x\n", bcm47xx_map.size, WINDOW_ADDR); -+ -+ num_partitions = parse_mtd_partitions(bcm47xx_mtd, probes, &partitions, 0); -+ if (num_partitions < 0) { -+ ret = num_partitions; -+ goto err_unmap; -+ } -+ -+ ret = mtd_device_register(bcm47xx_mtd, partitions, num_partitions); -+ -+// ret = mtd_device_parse_register(bcm47xx_mtd, "bcm47xx", NULL, NULL, 0); -+ -+ if (ret) { -+ pr_err("Flash: mtd_device_register failed\n"); -+ goto err_destroy; -+ } -+ return 0; -+ -+err_destroy: -+ map_destroy(bcm47xx_mtd); -+err_unmap: -+ iounmap(bcm47xx_map.virt); -+ return ret; -+} -+ -+static int __devexit bcm47xx_mtd_remove(struct platform_device *pdev) -+{ -+ mtd_device_unregister(bcm47xx_mtd); -+ map_destroy(bcm47xx_mtd); -+ iounmap(bcm47xx_map.virt); -+ return 0; -+} -+ -+static struct platform_driver bcm47xx_mtd_driver = { -+ .remove = __devexit_p(bcm47xx_mtd_remove), -+ .driver = { -+ .name = "bcm47xx_pflash", -+ .owner = THIS_MODULE, -+ }, -+}; -+ -+static int __init init_bcm47xx_mtd(void) -+{ -+ int ret = platform_driver_probe(&bcm47xx_mtd_driver, bcm47xx_mtd_probe); -+ -+ if (ret) -+ pr_err("error registering platform driver: %i\n", ret); -+ return ret; -+} -+ -+static void __exit exit_bcm47xx_mtd(void) -+{ -+ platform_driver_unregister(&bcm47xx_mtd_driver); -+} -+ -+module_init(init_bcm47xx_mtd); -+module_exit(exit_bcm47xx_mtd); -+ -+MODULE_LICENSE("GPL"); -+MODULE_DESCRIPTION("BCM47XX parallel flash driver"); |