aboutsummaryrefslogtreecommitdiff
path: root/drivers/net/sfc/spi.h
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/net/sfc/spi.h')
-rw-r--r--drivers/net/sfc/spi.h34
1 files changed, 32 insertions, 2 deletions
diff --git a/drivers/net/sfc/spi.h b/drivers/net/sfc/spi.h
index feef6194237..c4aca132348 100644
--- a/drivers/net/sfc/spi.h
+++ b/drivers/net/sfc/spi.h
@@ -25,6 +25,7 @@
#define SPI_WRDI 0x04 /* Reset write enable latch */
#define SPI_RDSR 0x05 /* Read status register */
#define SPI_WREN 0x06 /* Set write enable latch */
+#define SPI_SST_EWSR 0x50 /* SST: Enable write to status register */
#define SPI_STATUS_WPEN 0x80 /* Write-protect pin enabled */
#define SPI_STATUS_BP2 0x10 /* Block protection bit 2 */
@@ -36,6 +37,7 @@
/**
* 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
@@ -44,23 +46,51 @@
* use bit 3 of the command byte as address bit A8, rather
* than having a two-byte address. If this flag is set, then
* commands should be munged in this way.
+ * @erase_command: Erase command (or 0 if sector erase not needed).
+ * @erase_size: Erase sector size (in bytes)
+ * Erase commands affect sectors with this size and alignment.
+ * This must be a power of two.
* @block_size: Write block size (in bytes).
* Write commands are limited to blocks with this size and alignment.
- * @read: Read function for the device
- * @write: Write function for the device
*/
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;
unsigned int munge_address:1;
+ u8 erase_command;
+ unsigned int erase_size;
unsigned int block_size;
};
+int falcon_spi_cmd(const struct efx_spi_device *spi, unsigned int command,
+ int address, const void* in, void *out, unsigned int len);
+int falcon_spi_fast_wait(const struct efx_spi_device *spi);
int falcon_spi_read(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,
size_t len, size_t *retlen, const u8 *buffer);
+/*
+ * SFC4000 flash is partitioned into:
+ * 0-0x400 chip and board config (see falcon_hwdefs.h)
+ * 0x400-0x8000 unused (or may contain VPD if EEPROM not present)
+ * 0x8000-end boot code (mapped to PCI expansion ROM)
+ * SFC4000 small EEPROM (size < 0x400) is used for VPD only.
+ * SFC4000 large EEPROM (size >= 0x400) is partitioned into:
+ * 0-0x400 chip and board config
+ * configurable VPD
+ * 0x800-0x1800 boot config
+ * Aside from the chip and board config, all of these are optional and may
+ * be absent or truncated depending on the devices used.
+ */
+#define FALCON_NVCONFIG_END 0x400U
+#define FALCON_FLASH_BOOTCODE_START 0x8000U
+#define EFX_EEPROM_BOOTCONFIG_START 0x800U
+#define EFX_EEPROM_BOOTCONFIG_END 0x1800U
+
#endif /* EFX_SPI_H */