From: Cyrille Pitchen <cyrille.pitc...@atmel.com>
This is a transitional patch to prepare the SPI FLASH sub-system to
support the 4-byte address instruction set later.
For now, flash->addr_len is always set to SPI_FLASH_3B_ADDR_LEN.
Signed-off-by: Cyrille Pitchen <cyrille.pitc...@atmel.com>
Signed-off-by: Wenyou Yang <wenyou.y...@microchip.com>
---
Changes in v3: None
Changes in v2: None
drivers/mtd/spi/spi_flash.c | 13 ++++++++-----
include/spi_flash.h | 2 ++
2 files changed, 10 insertions(+), 5 deletions(-)
diff --git a/drivers/mtd/spi/spi_flash.c b/drivers/mtd/spi/spi_flash.c
index 8712e5eef0..d6942d57b2 100644
--- a/drivers/mtd/spi/spi_flash.c
+++ b/drivers/mtd/spi/spi_flash.c
@@ -322,7 +322,7 @@ int spi_flash_cmd_erase_ops(struct spi_flash *flash, u32
offset, size_t len)
}
}
- spi_flash_command_init(&cmd, flash->erase_cmd, SPI_FLASH_3B_ADDR_LEN,
+ spi_flash_command_init(&cmd, flash->erase_cmd, flash->addr_len,
SPI_FCMD_ERASE);
while (len) {
erase_addr = offset;
@@ -377,7 +377,7 @@ int spi_flash_cmd_write_ops(struct spi_flash *flash, u32
offset,
}
}
- spi_flash_command_init(&cmd, flash->write_cmd, SPI_FLASH_3B_ADDR_LEN,
+ spi_flash_command_init(&cmd, flash->write_cmd, flash->addr_len,
SPI_FCMD_WRITE);
cmd.proto = flash->write_proto;
for (actual = 0; actual < len; actual += chunk_len) {
@@ -481,7 +481,7 @@ int spi_flash_cmd_read_ops(struct spi_flash *flash, u32
offset,
return 0;
}
- spi_flash_command_init(&cmd, flash->read_cmd, SPI_FLASH_3B_ADDR_LEN,
+ spi_flash_command_init(&cmd, flash->read_cmd, flash->addr_len,
SPI_FCMD_READ);
cmd.proto = flash->read_proto;
cmd.num_wait_states = flash->dummy_byte * 8;
@@ -529,7 +529,7 @@ static int sst_byte_write(struct spi_flash *flash, u32
offset, const void *buf)
int ret;
u8 sr = 0xFFu;
- spi_flash_command_init(&cmd, CMD_SST_BP, SPI_FLASH_3B_ADDR_LEN,
+ spi_flash_command_init(&cmd, CMD_SST_BP, flash->addr_len,
SPI_FCMD_WRITE);
cmd.addr = offset;
cmd.data_len = 1;
@@ -580,7 +580,7 @@ int sst_write_wp(struct spi_flash *flash, u32 offset,
size_t len,
if (ret)
goto done;
- spi_flash_command_init(&cmd, CMD_SST_AAI_WP, SPI_FLASH_3B_ADDR_LEN,
+ spi_flash_command_init(&cmd, CMD_SST_AAI_WP, flash->addr_len,
SPI_FCMD_WRITE);
cmd.addr = offset;
cmd.data_len = 2;
@@ -1102,6 +1102,9 @@ int spi_flash_scan(struct spi_flash *flash)
flash->flags |= SNOR_F_USE_FSR;
#endif
+ /* Set the address length */
+ flash->addr_len = SPI_FLASH_3B_ADDR_LEN;
+
/* Configure the BAR - discover bank cmds and read current bank */
#ifdef CONFIG_SPI_FLASH_BAR
ret = read_bar(flash, info);
diff --git a/include/spi_flash.h b/include/spi_flash.h
index 688a1708fd..09a81fdd76 100644
--- a/include/spi_flash.h
+++ b/include/spi_flash.h
@@ -45,6 +45,7 @@ struct spi_slave;
* @bank_read_cmd: Bank read cmd
* @bank_write_cmd: Bank write cmd
* @bank_curr: Current flash bank
+ * @addr_len: Number of bytes for the address
* @erase_cmd: Erase cmd 4K, 32K, 64K
* @read_cmd: Read cmd - Array Fast, Extn read and quad read.
* @write_cmd: Write cmd - page and quad program.
@@ -82,6 +83,7 @@ struct spi_flash {
u8 bank_write_cmd;
u8 bank_curr;
#endif
+ u8 addr_len;
u8 erase_cmd;
u8 read_cmd;
u8 write_cmd;
--
2.13.0
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