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author | Hauke Mehrtens <hauke@hauke-m.de> | 2012-04-13 16:53:16 +0000 |
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committer | Hauke Mehrtens <hauke@hauke-m.de> | 2012-04-13 16:53:16 +0000 |
commit | c75e700d4234d149aeba5781d0a73cc329a6005c (patch) | |
tree | e50d6f8830dbac7471cef55ea14baa36b245aa54 /target/linux/brcm47xx/patches-3.0/0019-mtd-bcm47xx-add-serial-flash-driver.patch | |
parent | 99768ccb7c7593c36ebca250bd5cbe1d6b74d166 (diff) | |
download | master-31e0f0ae-c75e700d4234d149aeba5781d0a73cc329a6005c.tar.gz master-31e0f0ae-c75e700d4234d149aeba5781d0a73cc329a6005c.tar.bz2 master-31e0f0ae-c75e700d4234d149aeba5781d0a73cc329a6005c.zip |
brcm47xx: remove support for kernel 3.0
SVN-Revision: 31276
Diffstat (limited to 'target/linux/brcm47xx/patches-3.0/0019-mtd-bcm47xx-add-serial-flash-driver.patch')
-rw-r--r-- | target/linux/brcm47xx/patches-3.0/0019-mtd-bcm47xx-add-serial-flash-driver.patch | 330 |
1 files changed, 0 insertions, 330 deletions
diff --git a/target/linux/brcm47xx/patches-3.0/0019-mtd-bcm47xx-add-serial-flash-driver.patch b/target/linux/brcm47xx/patches-3.0/0019-mtd-bcm47xx-add-serial-flash-driver.patch deleted file mode 100644 index d9f961081d..0000000000 --- a/target/linux/brcm47xx/patches-3.0/0019-mtd-bcm47xx-add-serial-flash-driver.patch +++ /dev/null @@ -1,330 +0,0 @@ -From 6a615274708fff685952139fee00ebccc0cf3266 Mon Sep 17 00:00:00 2001 -From: Hauke Mehrtens <hauke@hauke-m.de> -Date: Sun, 17 Jul 2011 14:55:45 +0200 -Subject: [PATCH 19/26] mtd: bcm47xx: add serial flash driver - -sflash get the sflash ops from platform device - -Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> ---- - arch/mips/include/asm/mach-bcm47xx/bus.h | 3 + - drivers/mtd/maps/Kconfig | 9 + - drivers/mtd/maps/Makefile | 1 + - drivers/mtd/maps/bcm47xx-sflash.c | 267 ++++++++++++++++++++++++++++++ - 4 files changed, 280 insertions(+), 0 deletions(-) - create mode 100644 drivers/mtd/maps/bcm47xx-sflash.c - ---- a/arch/mips/include/asm/mach-bcm47xx/bus.h -+++ b/arch/mips/include/asm/mach-bcm47xx/bus.h -@@ -11,6 +11,7 @@ - - #include <linux/ssb/ssb.h> - #include <linux/bcma/bcma.h> -+#include <linux/mtd/mtd.h> - #include <bcm47xx.h> - - struct bcm47xx_sflash { -@@ -29,6 +30,8 @@ struct bcm47xx_sflash { - u32 blocksize; /* Block size */ - u32 numblocks; /* Number of blocks */ - u32 size; /* Total size in bytes */ -+ -+ struct mtd_info *mtd; - }; - - void bcm47xx_sflash_struct_bcma_init(struct bcm47xx_sflash *sflash, struct bcma_drv_cc *bcc); ---- a/drivers/mtd/maps/Kconfig -+++ b/drivers/mtd/maps/Kconfig -@@ -273,6 +273,15 @@ config MTD_BCM47XX_PFLASH - help - Support for bcm47xx parallel flash - -+config MTD_BCM47XX_SFLASH -+ tristate "bcm47xx serial 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 -@@ -61,3 +61,4 @@ obj-$(CONFIG_MTD_BCM963XX) += bcm963xx-f - obj-$(CONFIG_MTD_LATCH_ADDR) += latch-addr-flash.o - obj-$(CONFIG_MTD_LANTIQ) += lantiq-flash.o - obj-$(CONFIG_MTD_BCM47XX_PFLASH)+= bcm47xx-pflash.o -+obj-$(CONFIG_MTD_BCM47XX_SFLASH)+= bcm47xx-sflash.o ---- /dev/null -+++ b/drivers/mtd/maps/bcm47xx-sflash.c -@@ -0,0 +1,267 @@ -+/* -+ * Broadcom SiliconBackplane chipcommon serial flash interface -+ * -+ * Copyright 2006, 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. -+ * -+ * $Id$ -+ */ -+ -+#define pr_fmt(fmt) "bcm47xx_sflash: " fmt -+#include <linux/module.h> -+#include <linux/slab.h> -+#include <linux/ioport.h> -+#include <linux/sched.h> -+#include <linux/mtd/mtd.h> -+#include <linux/mtd/map.h> -+#include <linux/mtd/partitions.h> -+#include <linux/errno.h> -+#include <linux/delay.h> -+#include <linux/platform_device.h> -+#include <bcm47xx.h> -+#include <bus.h> -+ -+static int -+sflash_mtd_poll(struct bcm47xx_sflash *sflash, unsigned int offset, int timeout) -+{ -+ unsigned long now = jiffies; -+ int ret = 0; -+ -+ for (;;) { -+ if (!sflash->poll(sflash, offset)) { -+ ret = 0; -+ break; -+ } -+ if (time_after(jiffies, now + timeout)) { -+ pr_err("timeout while polling\n"); -+ ret = -ETIMEDOUT; -+ break; -+ } -+ udelay(1); -+ } -+ -+ return ret; -+} -+ -+static int -+sflash_mtd_read(struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf) -+{ -+ struct bcm47xx_sflash *sflash = (struct bcm47xx_sflash *) mtd->priv; -+ -+ /* Check address range */ -+ if (!len) -+ return 0; -+ -+ if ((from + len) > mtd->size) -+ return -EINVAL; -+ -+ *retlen = 0; -+ -+ while (len) { -+ int ret = sflash->read(sflash, from, len, buf); -+ if (ret < 0) -+ return ret; -+ -+ from += (loff_t) ret; -+ len -= ret; -+ buf += ret; -+ *retlen += ret; -+ } -+ -+ return 0; -+} -+ -+static int -+sflash_mtd_write(struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen, const u_char *buf) -+{ -+ struct bcm47xx_sflash *sflash = (struct bcm47xx_sflash *) mtd->priv; -+ -+ /* Check address range */ -+ if (!len) -+ return 0; -+ -+ if ((to + len) > mtd->size) -+ return -EINVAL; -+ -+ *retlen = 0; -+ while (len) { -+ int bytes; -+ int ret = sflash->write(sflash, to, len, buf); -+ if (ret < 0) -+ return ret; -+ -+ bytes = ret; -+ -+ ret = sflash_mtd_poll(sflash, (unsigned int) to, HZ / 10); -+ if (ret) -+ return ret; -+ -+ to += (loff_t) bytes; -+ len -= bytes; -+ buf += bytes; -+ *retlen += bytes; -+ } -+ -+ return 0; -+} -+ -+static int -+sflash_mtd_erase(struct mtd_info *mtd, struct erase_info *erase) -+{ -+ struct bcm47xx_sflash *sflash = (struct bcm47xx_sflash *) mtd->priv; -+ int i, j, ret = 0; -+ unsigned int addr, len; -+ -+ /* Check address range */ -+ if (!erase->len) -+ return 0; -+ if ((erase->addr + erase->len) > mtd->size) -+ return -EINVAL; -+ -+ addr = erase->addr; -+ len = erase->len; -+ -+ /* Ensure that requested regions are aligned */ -+ for (i = 0; i < mtd->numeraseregions; i++) { -+ for (j = 0; j < mtd->eraseregions[i].numblocks; j++) { -+ if (addr == mtd->eraseregions[i].offset + -+ mtd->eraseregions[i].erasesize * j && -+ len >= mtd->eraseregions[i].erasesize) { -+ ret = sflash->erase(sflash, addr); -+ if (ret < 0) -+ break; -+ ret = sflash_mtd_poll(sflash, addr, 10 * HZ); -+ if (ret) -+ break; -+ addr += mtd->eraseregions[i].erasesize; -+ len -= mtd->eraseregions[i].erasesize; -+ } -+ } -+ if (ret) -+ break; -+ } -+ -+ /* Set erase status */ -+ if (ret) -+ erase->state = MTD_ERASE_FAILED; -+ else -+ erase->state = MTD_ERASE_DONE; -+ -+ /* Call erase callback */ -+ if (erase->callback) -+ erase->callback(erase); -+ -+ return ret; -+} -+ -+static const char *probes[] = { "bcm47xx", NULL }; -+ -+static int bcm47xx_sflash_probe(struct platform_device *pdev) -+{ -+ struct bcm47xx_sflash *sflash = dev_get_platdata(&pdev->dev); -+ struct mtd_info *mtd; -+ struct mtd_erase_region_info *regions; -+ int ret = 0; -+ -+ struct mtd_partition *parts; -+ int num_partitions = 0; -+ -+ mtd = kzalloc(sizeof(struct mtd_info), GFP_KERNEL); -+ if (!mtd) -+ return -ENOMEM; -+ -+ regions = kzalloc(sizeof(struct mtd_erase_region_info), GFP_KERNEL); -+ if (!mtd) -+ return -ENOMEM; -+ -+ pr_info("found serial flash: blocksize=%dKB, numblocks=%d, size=%dKB\n", -+ sflash->blocksize/1024, sflash->numblocks, sflash->size / 1024); -+ -+ /* Setup region info */ -+ regions->offset = 0; -+ regions->erasesize = sflash->blocksize; -+ regions->numblocks = sflash->numblocks; -+ if (regions->erasesize > mtd->erasesize) -+ mtd->erasesize = regions->erasesize; -+ mtd->size = sflash->size; -+ mtd->numeraseregions = 1; -+ -+ /* Register with MTD */ -+ mtd->name = "bcm47xx-sflash"; -+ mtd->type = MTD_NORFLASH; -+ mtd->flags = MTD_CAP_NORFLASH; -+ mtd->eraseregions = regions; -+ mtd->erase = sflash_mtd_erase; -+ mtd->read = sflash_mtd_read; -+ mtd->write = sflash_mtd_write; -+ mtd->writesize = 1; -+ mtd->priv = sflash; -+ mtd->owner = THIS_MODULE; -+ -+ num_partitions = parse_mtd_partitions(mtd, probes, &parts, 0); -+ if (num_partitions < 0) { -+ ret = num_partitions; -+ goto err_destroy; -+ } -+ -+ ret = mtd_device_register(mtd, parts, num_partitions); -+ -+// ret = mtd_device_parse_register(bcm47xx_mtd, "bcm47xx", NULL, NULL, 0); -+ -+ if (ret) { -+ pr_err("mtd_device_register failed\n"); -+ return ret; -+ } -+ sflash->mtd = mtd; -+ return 0; -+ -+err_destroy: -+ map_destroy(mtd); -+ return ret; -+} -+ -+static int __devexit bcm47xx_sflash_remove(struct platform_device *pdev) -+{ -+ struct bcm47xx_sflash *sflash = dev_get_platdata(&pdev->dev); -+ -+ if (sflash) { -+ mtd_device_unregister(sflash->mtd); -+ map_destroy(sflash->mtd); -+ kfree(sflash->mtd->eraseregions); -+ kfree(sflash->mtd); -+ } -+ return 0; -+} -+ -+static struct platform_driver bcm47xx_sflash_driver = { -+ .remove = __devexit_p(bcm47xx_sflash_remove), -+ .driver = { -+ .name = "bcm47xx_sflash", -+ .owner = THIS_MODULE, -+ }, -+}; -+ -+static int __init init_bcm47xx_sflash(void) -+{ -+ int ret = platform_driver_probe(&bcm47xx_sflash_driver, bcm47xx_sflash_probe); -+ -+ if (ret) -+ pr_err("error registering platform driver: %i\n", ret); -+ return ret; -+} -+ -+static void __exit exit_bcm47xx_sflash(void) -+{ -+ platform_driver_unregister(&bcm47xx_sflash_driver); -+} -+ -+module_init(init_bcm47xx_sflash); -+module_exit(exit_bcm47xx_sflash); -+ -+MODULE_LICENSE("GPL"); -+MODULE_DESCRIPTION("BCM47XX parallel flash driver"); |