mirror of https://github.com/hak5/openwrt.git
124 lines
3.1 KiB
Diff
124 lines
3.1 KiB
Diff
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--- a/drivers/mtd/devices/bcm47xxsflash.c
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+++ b/drivers/mtd/devices/bcm47xxsflash.c
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@@ -5,6 +5,8 @@
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#include <linux/platform_device.h>
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#include <linux/bcma/bcma.h>
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+#include "bcm47xxsflash.h"
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+
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MODULE_LICENSE("GPL");
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MODULE_DESCRIPTION("Serial flash driver for BCMA bus");
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@@ -13,26 +15,27 @@ static const char *probes[] = { "bcm47xx
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static int bcm47xxsflash_read(struct mtd_info *mtd, loff_t from, size_t len,
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size_t *retlen, u_char *buf)
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{
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- struct bcma_sflash *sflash = mtd->priv;
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+ struct bcm47xxsflash *b47s = mtd->priv;
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/* Check address range */
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if ((from + len) > mtd->size)
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return -EINVAL;
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- memcpy_fromio(buf, (void __iomem *)KSEG0ADDR(sflash->window + from),
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+ memcpy_fromio(buf, (void __iomem *)KSEG0ADDR(b47s->window + from),
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len);
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return len;
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}
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-static void bcm47xxsflash_fill_mtd(struct bcma_sflash *sflash,
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- struct mtd_info *mtd)
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+static void bcm47xxsflash_fill_mtd(struct bcm47xxsflash *b47s)
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{
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- mtd->priv = sflash;
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+ struct mtd_info *mtd = &b47s->mtd;
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+
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+ mtd->priv = b47s;
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mtd->name = "bcm47xxsflash";
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mtd->owner = THIS_MODULE;
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mtd->type = MTD_ROM;
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- mtd->size = sflash->size;
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+ mtd->size = b47s->size;
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mtd->_read = bcm47xxsflash_read;
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/* TODO: implement writing support and verify/change following code */
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@@ -43,16 +46,23 @@ static void bcm47xxsflash_fill_mtd(struc
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static int bcm47xxsflash_probe(struct platform_device *pdev)
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{
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struct bcma_sflash *sflash = dev_get_platdata(&pdev->dev);
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+ struct bcm47xxsflash *b47s;
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int err;
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- sflash->mtd = kzalloc(sizeof(struct mtd_info), GFP_KERNEL);
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- if (!sflash->mtd) {
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+ b47s = kzalloc(sizeof(*b47s), GFP_KERNEL);
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+ if (!b47s) {
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err = -ENOMEM;
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goto out;
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}
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- bcm47xxsflash_fill_mtd(sflash, sflash->mtd);
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+ sflash->priv = b47s;
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+
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+ b47s->window = sflash->window;
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+ b47s->blocksize = sflash->blocksize;
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+ b47s->numblocks = sflash->numblocks;
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+ b47s->size = sflash->size;
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+ bcm47xxsflash_fill_mtd(b47s);
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- err = mtd_device_parse_register(sflash->mtd, probes, NULL, NULL, 0);
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+ err = mtd_device_parse_register(&b47s->mtd, probes, NULL, NULL, 0);
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if (err) {
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pr_err("Failed to register MTD device: %d\n", err);
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goto err_dev_reg;
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@@ -61,7 +71,7 @@ static int bcm47xxsflash_probe(struct pl
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return 0;
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err_dev_reg:
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- kfree(sflash->mtd);
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+ kfree(&b47s->mtd);
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out:
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return err;
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}
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@@ -69,9 +79,10 @@ out:
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static int bcm47xxsflash_remove(struct platform_device *pdev)
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{
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struct bcma_sflash *sflash = dev_get_platdata(&pdev->dev);
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+ struct bcm47xxsflash *b47s = sflash->priv;
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- mtd_device_unregister(sflash->mtd);
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- kfree(sflash->mtd);
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+ mtd_device_unregister(&b47s->mtd);
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+ kfree(b47s);
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return 0;
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}
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--- /dev/null
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+++ b/drivers/mtd/devices/bcm47xxsflash.h
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@@ -0,0 +1,15 @@
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+#ifndef __BCM47XXSFLASH_H
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+#define __BCM47XXSFLASH_H
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+
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+#include <linux/mtd/mtd.h>
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+
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+struct bcm47xxsflash {
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+ u32 window;
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+ u32 blocksize;
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+ u16 numblocks;
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+ u32 size;
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+
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+ struct mtd_info mtd;
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+};
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+
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+#endif /* BCM47XXSFLASH */
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--- a/include/linux/bcma/bcma_driver_chipcommon.h
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+++ b/include/linux/bcma/bcma_driver_chipcommon.h
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@@ -528,6 +528,7 @@ struct bcma_sflash {
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u32 size;
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struct mtd_info *mtd;
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+ void *priv;
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};
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#endif
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