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path: root/target/linux/brcm47xx/patches-3.8/030-mtd-bcm47xxsflash-add-own-struct-for-abstrating-bus-.patch
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Diffstat (limited to 'target/linux/brcm47xx/patches-3.8/030-mtd-bcm47xxsflash-add-own-struct-for-abstrating-bus-.patch')
-rw-r--r--target/linux/brcm47xx/patches-3.8/030-mtd-bcm47xxsflash-add-own-struct-for-abstrating-bus-.patch123
1 files changed, 123 insertions, 0 deletions
diff --git a/target/linux/brcm47xx/patches-3.8/030-mtd-bcm47xxsflash-add-own-struct-for-abstrating-bus-.patch b/target/linux/brcm47xx/patches-3.8/030-mtd-bcm47xxsflash-add-own-struct-for-abstrating-bus-.patch
new file mode 100644
index 0000000000..30bdbb2a81
--- /dev/null
+++ b/target/linux/brcm47xx/patches-3.8/030-mtd-bcm47xxsflash-add-own-struct-for-abstrating-bus-.patch
@@ -0,0 +1,123 @@
+--- 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
+