From a5dc8bb92c6b67be7e48d442e821837b03fc129a Mon Sep 17 00:00:00 2001 From: Andreas Rammhold Date: Thu, 28 Jan 2021 09:43:36 +0000 Subject: [PATCH 17/58] FROMLIST(v1): spi-nor: add support for XT25F128B This adds support for the XT25F128B as found on the RockPi4b SBC. Signed-off-by: Andreas Rammhold --- This continues the efforts done in [1] & [2] that went stale. I've tested this patch on my RockPi4b which only has the xt25f128b (and not the xt25f32b as also propsed in [2]). I have tried to obtain a copy of the datasheets but was unable to find them. Not sure whre you would get them. While [1] was already for the new spi-nor layout it was missing the bits in the core.{c,h} files. [1]: https://patchwork.ozlabs.org/project/linux-mtd/patch/CAMgqO2y9MYDj6antOaWLBRKU8vGEwqCB-Y1TkXTSWsmsed+W6A@mail.gmail.com/ [2]: https://patchwork.ozlabs.org/project/linux-mtd/patch/20200206171941.GA2398@makrotopia.org/ --- drivers/mtd/spi-nor/Makefile | 1 + drivers/mtd/spi-nor/core.c | 1 + drivers/mtd/spi-nor/core.h | 1 + drivers/mtd/spi-nor/xtx.c | 16 ++++++++++++++++ 4 files changed, 19 insertions(+) create mode 100644 drivers/mtd/spi-nor/xtx.c diff --git a/drivers/mtd/spi-nor/Makefile b/drivers/mtd/spi-nor/Makefile index 653923896205..3f7a52d7fa0b 100644 --- a/drivers/mtd/spi-nor/Makefile +++ b/drivers/mtd/spi-nor/Makefile @@ -17,6 +17,7 @@ spi-nor-objs += sst.o spi-nor-objs += winbond.o spi-nor-objs += xilinx.o spi-nor-objs += xmc.o +spi-nor-objs += xtx.o obj-$(CONFIG_MTD_SPI_NOR) += spi-nor.o obj-$(CONFIG_MTD_SPI_NOR) += controllers/ diff --git a/drivers/mtd/spi-nor/core.c b/drivers/mtd/spi-nor/core.c index 0522304f52fa..9a89ec473e4b 100644 --- a/drivers/mtd/spi-nor/core.c +++ b/drivers/mtd/spi-nor/core.c @@ -2215,6 +2215,7 @@ static const struct spi_nor_manufacturer *manufacturers[] = { &spi_nor_winbond, &spi_nor_xilinx, &spi_nor_xmc, + &spi_nor_xtx, }; static const struct flash_info * diff --git a/drivers/mtd/spi-nor/core.h b/drivers/mtd/spi-nor/core.h index 4a3f7f150b5d..ee0e45eaffcd 100644 --- a/drivers/mtd/spi-nor/core.h +++ b/drivers/mtd/spi-nor/core.h @@ -425,6 +425,7 @@ extern const struct spi_nor_manufacturer spi_nor_sst; extern const struct spi_nor_manufacturer spi_nor_winbond; extern const struct spi_nor_manufacturer spi_nor_xilinx; extern const struct spi_nor_manufacturer spi_nor_xmc; +extern const struct spi_nor_manufacturer spi_nor_xtx; void spi_nor_spimem_setup_op(const struct spi_nor *nor, struct spi_mem_op *op, diff --git a/drivers/mtd/spi-nor/xtx.c b/drivers/mtd/spi-nor/xtx.c new file mode 100644 index 000000000000..a10102d8b3e2 --- /dev/null +++ b/drivers/mtd/spi-nor/xtx.c @@ -0,0 +1,16 @@ +// SPDX-License-Identifier: GPL-2.0 + +#include + +#include "core.h" + +static const struct flash_info xtx_parts[] = { + /* XTX (Shenzhen Xin Tian Xia Tech) */ + { "xt25f128b", INFO(0x0b4018, 0, 64 * 1024, 256, SECT_4K) }, +}; + +const struct spi_nor_manufacturer spi_nor_xtx = { + .name = "xtx", + .parts = xtx_parts, + .nparts = ARRAY_SIZE(xtx_parts), +}; -- 2.25.1