On Wednesday 22 July 2009 14:03:04 Niklaus Giger wrote:
> see http://www.jedec.org/download/search/jep106Z.pdf
> Add some second source legacy flash chips 256x8.
Please add an empty line here.
> Signed-off-by: Niklaus Giger <niklaus.gi...@member.fsf.org>
And still some more white space cleanup comments below (sorry, I didn't catch
them before).
> ---
> drivers/mtd/cfi_flash.c | 15 +++++++++-
> drivers/mtd/jedec_flash.c | 67
> +++++++++++++++++++++++++++++++++++++++++++++ include/flash.h |
> 10 ++++++-
> 3 files changed, 89 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/mtd/cfi_flash.c b/drivers/mtd/cfi_flash.c
> index 81ac5d3..4a4b697 100644
> --- a/drivers/mtd/cfi_flash.c
> +++ b/drivers/mtd/cfi_flash.c
> @@ -106,6 +106,8 @@
> #define ATM_CMD_SOFTLOCK_START 0x80
> #define ATM_CMD_LOCK_SECT 0x40
>
> +#define FLASH_CONTINUATION_CODE 0x7F
^^^^^^^^
Indentation by tab's please.
> +
> #define FLASH_OFFSET_MANUFACTURER_ID 0x00
> #define FLASH_OFFSET_DEVICE_ID 0x01
> #define FLASH_OFFSET_DEVICE_ID2 0x0E
> @@ -1541,13 +1543,22 @@ static int cmdset_intel_init(flash_info_t *info,
> struct cfi_qry *qry)
>
> static void cmdset_amd_read_jedec_ids(flash_info_t *info)
> {
> + ushort bankId = 0;
> + uchar manuId;
> +
> flash_write_cmd(info, 0, 0, AMD_CMD_RESET);
> flash_unlock_seq(info, 0);
> flash_write_cmd(info, 0, info->addr_unlock1, FLASH_CMD_READ_ID);
> udelay(1000); /* some flash are slow to respond */
>
> - info->manufacturer_id = flash_read_uchar (info,
> - FLASH_OFFSET_MANUFACTURER_ID);
> + manuId = flash_read_uchar (info, FLASH_OFFSET_MANUFACTURER_ID);
> + /* JEDEC JEP106Z specifies ID codes up to bank 7 */
> + while (manuId == FLASH_CONTINUATION_CODE && bankId < 0x800) {
> + bankId += 0x100;
> + manuId = flash_read_uchar (info,
> + bankId | FLASH_OFFSET_MANUFACTURER_ID);
> + }
> + info->manufacturer_id = manuId;
>
> switch (info->chipwidth){
> case FLASH_CFI_8BIT:
> diff --git a/drivers/mtd/jedec_flash.c b/drivers/mtd/jedec_flash.c
> index e48acec..376a323 100644
> --- a/drivers/mtd/jedec_flash.c
> +++ b/drivers/mtd/jedec_flash.c
> @@ -68,6 +68,17 @@
> #define SST39SF010A 0x00B5
> #define SST39SF020A 0x00B6
>
> +/* MXIC */
> +#define MX29LV040 0x004F
> +
> +/* WINBOND */
> +#define W39L040A 0x00D6
tabs again.
> +
> +/* AMIC */
> +#define A29L040 0x0092
and here.
> +
> +/* EON */
> +#define EN29LV040A 0x004F
and here.
Thanks.
Best regards,
Stefan
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