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mtd: bcm47xxsflash: implement ChipCommon R/W ops 

They are needed for erasing/writing. Use a magic pointers and small
functions to prepare code for adding other buses support in the future
(like SSB).

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
This commit is contained in:
Rafał Miłecki 2013-03-24 21:53:24 +01:00 committed by David Woodhouse
parent c095ba7224
commit 265dfbd9ae
2 changed files with 15 additions and 0 deletions
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13
drivers/mtd/devices/bcm47xxsflash.c
View File

@ -48,6 +48,17 @@ static void bcm47xxsflash_fill_mtd(struct bcm47xxsflash *b47s)
* BCMA
**************************************************/
static int bcm47xxsflash_bcma_cc_read(struct bcm47xxsflash *b47s, u16 offset)
{
return bcma_cc_read32(b47s->bcma_cc, offset);
}
static void bcm47xxsflash_bcma_cc_write(struct bcm47xxsflash *b47s, u16 offset,
u32 value)
{
bcma_cc_write32(b47s->bcma_cc, offset, value);
}
static int bcm47xxsflash_bcma_probe(struct platform_device *pdev)
{
struct bcma_sflash *sflash = dev_get_platdata(&pdev->dev);
@ -62,6 +73,8 @@ static int bcm47xxsflash_bcma_probe(struct platform_device *pdev)
sflash->priv = b47s;
b47s->bcma_cc = container_of(sflash, struct bcma_drv_cc, sflash);
b47s->cc_read = bcm47xxsflash_bcma_cc_read;
b47s->cc_write = bcm47xxsflash_bcma_cc_write;
switch (b47s->bcma_cc->capabilities & BCMA_CC_CAP_FLASHT) {
case BCMA_CC_FLASHT_STSER:

2
drivers/mtd/devices/bcm47xxsflash.h
View File

@ -60,6 +60,8 @@ enum bcm47xxsflash_type {
struct bcm47xxsflash {
struct bcma_drv_cc *bcma_cc;
int (*cc_read)(struct bcm47xxsflash *b47s, u16 offset);
void (*cc_write)(struct bcm47xxsflash *b47s, u16 offset, u32 value);
enum bcm47xxsflash_type type;