Radxa Rock Pi 4B from version 1.4 on carries a 4MiB XTX Technology Inc 25F32B SPI NOR Flash. (previous versions had pads where users could solder different chips).
Add its parameters to spi-nor-ids.c so U-Boot can discover it and (after further changes) we can boot from SPI.
Note that the Flash is declared to be dual and quad capable because the datasheet [4] says so but I couldn't try it because in Rock Pi 4 it is not wired for QuadSPI, and rk3399 does not seem to support dual SPI either (or I couldn't find any register to configure spi1tx and spi1rx as bidirectional).
But the same Flash part could be used as in quad or dual model in some other board.
Likewise locks are in the datasheet but untested.
The part has been added to downstream U-Boot [1] and linux [2] [3]:
Changed from v2:
- no change
Changed from v1:
- no change
Link: [1] https://github.com/armbian/build/commit/c41cb4c454570127ad3238f6b901fbf3aa77... Link: [2] https://github.com/radxa/kernel/blob/release-4.4-rockpi4/drivers/mtd/spi-nor... Link: [3] https://github.com/radxa/kernel/commit/8216f17965de7bc7ced7092aab0e2bfe16838... Link: [4] https://www.xtxtech.com/download/?AId=157
Signed-off-by: Xavier Drudis Ferran xdrudis@tinet.cat
Cc: Jagan Teki jagan@amarulasolutions.com Cc: Vignesh R vigneshr@ti.com
--- drivers/mtd/spi/spi-nor-ids.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/mtd/spi/spi-nor-ids.c b/drivers/mtd/spi/spi-nor-ids.c index 4fe8b0d92c..b09df00bab 100644 --- a/drivers/mtd/spi/spi-nor-ids.c +++ b/drivers/mtd/spi/spi-nor-ids.c @@ -452,6 +452,9 @@ const struct flash_info spi_nor_ids[] = { #ifdef CONFIG_SPI_FLASH_XTX /* XTX Technology (Shenzhen) Limited */ { INFO("xt25f128b", 0x0b4018, 0, 64 * 1024, 256, SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) }, + { INFO("xt25f32b", 0x0b4016, 0, 64 * 1024, 64, + SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ + | SPI_NOR_HAS_LOCK | SPI_NOR_HAS_SST26LOCK) }, #endif { }, };