
Hi,
On Mon, Sep 23, 2019 at 12:49 PM Simon Goldschmidt simon.k.r.goldschmidt@gmail.com wrote:
Hi ,
On Mon, Sep 23, 2019 at 11:38 AM Tudor.Ambarus@microchip.com wrote:
Hi, Simon,
On 09/23/2019 12:30 PM, Simon Goldschmidt wrote:
How would I dump the SFDP tables?
this should do it. Make sure SPI_FLASH_SFDP_SUPPORT is selected in menuconfig.
Cheers, ta
diff --git a/drivers/mtd/spi/spi-nor-core.c b/drivers/mtd/spi/spi-nor-core.c index 1acff745d1a2..7062f31226bf 100644 --- a/drivers/mtd/spi/spi-nor-core.c +++ b/drivers/mtd/spi/spi-nor-core.c @@ -1680,6 +1680,10 @@ static int spi_nor_parse_bfpt(struct spi_nor *nor, for (i = 0; i < BFPT_DWORD_MAX; i++) bfpt.dwords[i] = le32_to_cpu(bfpt.dwords[i]);
for (i = 0; i < BFPT_DWORD_MAX; i++)
dev_err(nor->dev, "bfpt.dwords[%d] = %08x\n", i,
bfpt.dwords[i]);
Unfortunately, that didn't work. It exits early when parsing the signature: I get 0xffdddfdf instead of 0x50444653...
OK, so after setting cadence qspi driver back to 'spi-rx-bus-width = <1>' (thanks Vignesh), here's the ID and SFDP dump for my n25q256a:
JEDEC id bytes: 20, ba, 19, 10, 44, 00
bfpt.dwords[0] = fffb20e5 bfpt.dwords[1] = 0fffffff bfpt.dwords[2] = 6b27eb29 bfpt.dwords[3] = bb273b27 bfpt.dwords[4] = ffffffff bfpt.dwords[5] = bb27ffff bfpt.dwords[6] = eb29ffff bfpt.dwords[7] = d810200c bfpt.dwords[8] = 0000520f bfpt.dwords[9] = 00994a24 bfpt.dwords[10] = d4038e8b bfpt.dwords[11] = 382701ac bfpt.dwords[12] = 757a757a bfpt.dwords[13] = 5cd5bdfb bfpt.dwords[14] = ff820f4a bfpt.dwords[15] = 363dbd81
Regards, Simon