mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-23 07:22:33 +00:00
124 lines
3.1 KiB
Diff
124 lines
3.1 KiB
Diff
|
--- a/drivers/mtd/devices/bcm47xxsflash.c
|
||
|
|
+++ b/drivers/mtd/devices/bcm47xxsflash.c
|
||
|
|
@@ -5,6 +5,8 @@
|
||
|
|
#include <linux/platform_device.h>
|
||
|
|
#include <linux/bcma/bcma.h>
|
||
|
|
|
||
|
|
+#include "bcm47xxsflash.h"
|
||
|
|
+
|
||
|
|
MODULE_LICENSE("GPL");
|
||
|
|
MODULE_DESCRIPTION("Serial flash driver for BCMA bus");
|
||
|
|
|
||
|
|
@@ -13,26 +15,27 @@ static const char *probes[] = { "bcm47xx
|
||
|
|
static int bcm47xxsflash_read(struct mtd_info *mtd, loff_t from, size_t len,
|
||
|
|
size_t *retlen, u_char *buf)
|
||
|
|
{
|
||
|
|
- struct bcma_sflash *sflash = mtd->priv;
|
||
|
|
+ struct bcm47xxsflash *b47s = mtd->priv;
|
||
|
|
|
||
|
|
/* Check address range */
|
||
|
|
if ((from + len) > mtd->size)
|
||
|
|
return -EINVAL;
|
||
|
|
|
||
|
|
- memcpy_fromio(buf, (void __iomem *)KSEG0ADDR(sflash->window + from),
|
||
|
|
+ memcpy_fromio(buf, (void __iomem *)KSEG0ADDR(b47s->window + from),
|
||
|
|
len);
|
||
|
|
|
||
|
|
return len;
|
||
|
|
}
|
||
|
|
|
||
|
|
-static void bcm47xxsflash_fill_mtd(struct bcma_sflash *sflash,
|
||
|
|
- struct mtd_info *mtd)
|
||
|
|
+static void bcm47xxsflash_fill_mtd(struct bcm47xxsflash *b47s)
|
||
|
|
{
|
||
|
|
- mtd->priv = sflash;
|
||
|
|
+ struct mtd_info *mtd = &b47s->mtd;
|
||
|
|
+
|
||
|
|
+ mtd->priv = b47s;
|
||
|
|
mtd->name = "bcm47xxsflash";
|
||
|
|
mtd->owner = THIS_MODULE;
|
||
|
|
mtd->type = MTD_ROM;
|
||
|
|
- mtd->size = sflash->size;
|
||
|
|
+ mtd->size = b47s->size;
|
||
|
|
mtd->_read = bcm47xxsflash_read;
|
||
|
|
|
||
|
|
/* TODO: implement writing support and verify/change following code */
|
||
|
|
@@ -43,16 +46,23 @@ static void bcm47xxsflash_fill_mtd(struc
|
||
|
|
static int bcm47xxsflash_probe(struct platform_device *pdev)
|
||
|
|
{
|
||
|
|
struct bcma_sflash *sflash = dev_get_platdata(&pdev->dev);
|
||
|
|
+ struct bcm47xxsflash *b47s;
|
||
|
|
int err;
|
||
|
|
|
||
|
|
- sflash->mtd = kzalloc(sizeof(struct mtd_info), GFP_KERNEL);
|
||
|
|
- if (!sflash->mtd) {
|
||
|
|
+ b47s = kzalloc(sizeof(*b47s), GFP_KERNEL);
|
||
|
|
+ if (!b47s) {
|
||
|
|
err = -ENOMEM;
|
||
|
|
goto out;
|
||
|
|
}
|
||
|
|
- bcm47xxsflash_fill_mtd(sflash, sflash->mtd);
|
||
|
|
+ sflash->priv = b47s;
|
||
|
|
+
|
||
|
|
+ b47s->window = sflash->window;
|
||
|
|
+ b47s->blocksize = sflash->blocksize;
|
||
|
|
+ b47s->numblocks = sflash->numblocks;
|
||
|
|
+ b47s->size = sflash->size;
|
||
|
|
+ bcm47xxsflash_fill_mtd(b47s);
|
||
|
|
|
||
|
|
- err = mtd_device_parse_register(sflash->mtd, probes, NULL, NULL, 0);
|
||
|
|
+ err = mtd_device_parse_register(&b47s->mtd, probes, NULL, NULL, 0);
|
||
|
|
if (err) {
|
||
|
|
pr_err("Failed to register MTD device: %d\n", err);
|
||
|
|
goto err_dev_reg;
|
||
|
|
@@ -61,7 +71,7 @@ static int bcm47xxsflash_probe(struct pl
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
err_dev_reg:
|
||
|
|
- kfree(sflash->mtd);
|
||
|
|
+ kfree(&b47s->mtd);
|
||
|
|
out:
|
||
|
|
return err;
|
||
|
|
}
|
||
|
|
@@ -69,9 +79,10 @@ out:
|
||
|
|
static int bcm47xxsflash_remove(struct platform_device *pdev)
|
||
|
|
{
|
||
|
|
struct bcma_sflash *sflash = dev_get_platdata(&pdev->dev);
|
||
|
|
+ struct bcm47xxsflash *b47s = sflash->priv;
|
||
|
|
|
||
|
|
- mtd_device_unregister(sflash->mtd);
|
||
|
|
- kfree(sflash->mtd);
|
||
|
|
+ mtd_device_unregister(&b47s->mtd);
|
||
|
|
+ kfree(b47s);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
--- /dev/null
|
||
|
|
+++ b/drivers/mtd/devices/bcm47xxsflash.h
|
||
|
|
@@ -0,0 +1,15 @@
|
||
|
|
+#ifndef __BCM47XXSFLASH_H
|
||
|
|
+#define __BCM47XXSFLASH_H
|
||
|
|
+
|
||
|
|
+#include <linux/mtd/mtd.h>
|
||
|
|
+
|
||
|
|
+struct bcm47xxsflash {
|
||
|
|
+ u32 window;
|
||
|
|
+ u32 blocksize;
|
||
|
|
+ u16 numblocks;
|
||
|
|
+ u32 size;
|
||
|
|
+
|
||
|
|
+ struct mtd_info mtd;
|
||
|
|
+};
|
||
|
|
+
|
||
|
|
+#endif /* BCM47XXSFLASH */
|
||
|
|
--- a/include/linux/bcma/bcma_driver_chipcommon.h
|
||
|
|
+++ b/include/linux/bcma/bcma_driver_chipcommon.h
|
||
|
|
@@ -528,6 +528,7 @@ struct bcma_sflash {
|
||
|
|
u32 size;
|
||
|
|
|
||
|
|
struct mtd_info *mtd;
|
||
|
|
+ void *priv;
|
||
|
|
};
|
||
|
|
#endif
|
||
|
|
|