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sfc: Extend MTD driver for use with new NICs

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In new NICs flash is managed by firmware and we will use high-level
operations on partitions rather than direct SPI commands.  Add support
for multiple MTD partitions per flash device and remove the direct
link between MTD and SPI devices.  Maintain a list of MTD partitions
in struct efx_nic.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ben Hutchings
2009-11-29 15:10:44 +00:00
committed by David S. Miller
parent c1c4f453b6
commit 7688483568
6 changed files with 261 additions and 130 deletions
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18
drivers/net/sfc/spi.h
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@@ -36,8 +36,6 @@
/**
* struct efx_spi_device - an Efx SPI (Serial Peripheral Interface) device
* @efx: The Efx controller that owns this device
* @mtd: MTD state
* @device_id: Controller's id for the device
* @size: Size (in bytes)
* @addr_len: Number of address bytes in read/write commands
@@ -54,10 +52,6 @@
* Write commands are limited to blocks with this size and alignment.
*/
struct efx_spi_device {
struct efx_nic *efx;
#ifdef CONFIG_SFC_MTD
void *mtd;
#endif
int device_id;
unsigned int size;
unsigned int addr_len;
@@ -67,12 +61,16 @@ struct efx_spi_device {
unsigned int block_size;
};
int falcon_spi_cmd(const struct efx_spi_device *spi, unsigned int command,
int falcon_spi_cmd(struct efx_nic *efx,
const struct efx_spi_device *spi, unsigned int command,
int address, const void* in, void *out, size_t len);
int falcon_spi_wait_write(const struct efx_spi_device *spi);
int falcon_spi_read(const struct efx_spi_device *spi, loff_t start,
int falcon_spi_wait_write(struct efx_nic *efx,
const struct efx_spi_device *spi);
int falcon_spi_read(struct efx_nic *efx,
const struct efx_spi_device *spi, loff_t start,
size_t len, size_t *retlen, u8 *buffer);
int falcon_spi_write(const struct efx_spi_device *spi, loff_t start,
int falcon_spi_write(struct efx_nic *efx,
const struct efx_spi_device *spi, loff_t start,
size_t len, size_t *retlen, const u8 *buffer);
/*