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dm: sf: Add driver model read/write/erase methods

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Permit use of a udevice to talk to SPI flash. Ultimately we would like
to retire the use of 'struct spi_flash' for this purpose, so create the
new API for those who want to move to it.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass
2015-03-26 09:29:25 -06:00
parent 60304592b9
commit 8d987abc6a
2 changed files with 57 additions and 6 deletions
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16
drivers/mtd/spi/sf-uclass.c
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@@ -11,6 +11,22 @@
#include <dm/device-internal.h>
#include "sf_internal.h"
int spi_flash_read_dm(struct udevice *dev, u32 offset, size_t len, void *buf)
{
return sf_get_ops(dev)->read(dev, offset, len, buf);
}
int spi_flash_write_dm(struct udevice *dev, u32 offset, size_t len,
const void *buf)
{
return sf_get_ops(dev)->write(dev, offset, len, buf);
}
int spi_flash_erase_dm(struct udevice *dev, u32 offset, size_t len)
{
return sf_get_ops(dev)->erase(dev, offset, len);
}
/*
* TODO(sjg@chromium.org): This is an old-style function. We should remove
* it when all SPI flash drivers use dm