From d3a337a592bc26be374a70d1aca4aa20080527d4 Mon Sep 17 00:00:00 2001 From: Daniel Golle Date: Sun, 7 Aug 2022 12:06:56 +0200 Subject: uboot-mediatek: additions from MTK SDK * updated SNAND/SNFI driver brings support for MT7981 * add support for MediaTek NAND Memory bad Block Management (NMBM) (not used for any boards atm, but could be useful in future) * wire up NMBM support for MT7622, MT7629, MT7981 and MT7986 * replace some local patches with updated version from SDK * bring some legacy precompiler symbols which haven't been converted into Kconfig symbols in U-Boot 2022.07, remove when bumbping to U-Boot 2022.10: 100-28-include-configs-mt7986-h-from-SDK.patch Source: https://github.com/mtk-openwrt/u-boot Signed-off-by: Daniel Golle --- ...i-nor-add-support-to-read-flash-unique-ID.patch | 142 +++++++++++++++++++++ 1 file changed, 142 insertions(+) create mode 100644 package/boot/uboot-mediatek/patches/100-14-mtd-spi-nor-add-support-to-read-flash-unique-ID.patch (limited to 'package/boot/uboot-mediatek/patches/100-14-mtd-spi-nor-add-support-to-read-flash-unique-ID.patch') diff --git a/package/boot/uboot-mediatek/patches/100-14-mtd-spi-nor-add-support-to-read-flash-unique-ID.patch b/package/boot/uboot-mediatek/patches/100-14-mtd-spi-nor-add-support-to-read-flash-unique-ID.patch new file mode 100644 index 0000000000..6a61045955 --- /dev/null +++ b/package/boot/uboot-mediatek/patches/100-14-mtd-spi-nor-add-support-to-read-flash-unique-ID.patch @@ -0,0 +1,142 @@ +From c4172a95df8a57a66c70a8b9948b9600a01c4cb7 Mon Sep 17 00:00:00 2001 +From: Weijie Gao +Date: Mon, 25 Jul 2022 11:32:08 +0800 +Subject: [PATCH 49/71] mtd: spi-nor: add support to read flash unique ID + +This patch adds support to read unique ID from spi-nor flashes. + +Signed-off-by: Weijie Gao +--- + drivers/mtd/spi/spi-nor-core.c | 95 ++++++++++++++++++++++++++++++++++ + include/linux/mtd/spi-nor.h | 2 + + 2 files changed, 97 insertions(+) + +--- a/drivers/mtd/spi/spi-nor-core.c ++++ b/drivers/mtd/spi/spi-nor-core.c +@@ -2742,6 +2742,100 @@ static int spi_nor_init_params(struct sp + return 0; + } + ++static int spi_nor_read_uuid(struct spi_nor *nor) ++{ ++ u8 read_opcode, addr_width, read_dummy; ++ loff_t addr; ++ u8 *uuid; ++ u8 uuid_len; ++ int shift = 0; ++ int ret; ++ int i; ++ struct spi_mem_op op; ++ ++ read_opcode = nor->read_opcode; ++ addr_width = nor->addr_width; ++ read_dummy = nor->read_dummy; ++ ++ switch (JEDEC_MFR(nor->info)) { ++ case SNOR_MFR_WINBOND: ++ uuid_len = 8; ++ nor->read_opcode = 0x4b; ++ nor->addr_width = 0; ++ addr = 0x0; ++ nor->read_dummy = 4; ++ break; ++ case SNOR_MFR_GIGADEVICE: ++ uuid_len = 16; ++ nor->read_opcode = 0x4b; ++ nor->addr_width = 3; ++ addr = 0x0; ++ nor->read_dummy = 1; ++ break; ++ case CFI_MFR_ST: ++ case SNOR_MFR_MICRON: ++ uuid_len = 17; ++ shift = 3; ++ nor->read_opcode = 0x9f; ++ nor->addr_width = 0; ++ addr = 0x0; ++ nor->read_dummy = 0; ++ break; ++ case SNOR_MFR_EON: ++ uuid_len = 12; ++ nor->read_opcode = 0x5a; ++ nor->addr_width = 3; ++ addr = 0x80; ++ nor->read_dummy = 1; ++ break; ++ /* Automotive only in SPANSION's NOR devices */ ++ case SNOR_MFR_SPANSION: ++ uuid_len = 11; ++ shift = 386; ++ nor->read_opcode = 0x9f; ++ nor->addr_width = 0; ++ addr = 0x0; ++ nor->read_dummy = 0; ++ break; ++ default: ++ printf("UUID not supported on this device.\n"); ++ return -ENOTSUPP; ++ } ++ ++ uuid = kmalloc((uuid_len + shift) * sizeof(*uuid), GFP_KERNEL); ++ if (!uuid) { ++ ret = -ENOMEM; ++ goto read_err; ++ } ++ memset(uuid, 0x0, (uuid_len + shift) * sizeof(*uuid)); ++ ++ op = (struct spi_mem_op)SPI_MEM_OP(SPI_MEM_OP_CMD(nor->read_opcode, 0), ++ SPI_MEM_OP_ADDR(nor->addr_width, addr, 0), ++ SPI_MEM_OP_DUMMY(nor->read_dummy, 0), ++ SPI_MEM_OP_DATA_IN(uuid_len+shift, NULL, 0)); ++ ++ spi_nor_setup_op(nor, &op, nor->reg_proto); ++ ++ ret = spi_nor_read_write_reg(nor, &op, uuid); ++ if (ret < 0) { ++ dev_dbg(nor->dev, "error %d reading %x\n", ret, nor->read_opcode); ++ goto read_err; ++ } ++ ++ printf("UUID: 0x"); ++ for(i = 0; iread_opcode = read_opcode; ++ nor->addr_width = addr_width; ++ nor->read_dummy = read_dummy; ++ kfree(uuid); ++ ++ return ret; ++} ++ + static int spi_nor_hwcaps2cmd(u32 hwcaps, const int table[][2], size_t size) + { + size_t i; +@@ -3719,6 +3813,7 @@ int spi_nor_scan(struct spi_nor *nor) + nor->write = spi_nor_write_data; + nor->read_reg = spi_nor_read_reg; + nor->write_reg = spi_nor_write_reg; ++ nor->read_uuid = spi_nor_read_uuid; + + nor->setup = spi_nor_default_setup; + +--- a/include/linux/mtd/spi-nor.h ++++ b/include/linux/mtd/spi-nor.h +@@ -28,6 +28,7 @@ + #define SNOR_MFR_SPANSION CFI_MFR_AMD + #define SNOR_MFR_SST CFI_MFR_SST + #define SNOR_MFR_WINBOND 0xef /* Also used by some Spansion */ ++#define SNOR_MFR_EON CFI_MFR_EON + #define SNOR_MFR_CYPRESS 0x34 + + /* +@@ -547,6 +548,7 @@ struct spi_nor { + void (*unprepare)(struct spi_nor *nor, enum spi_nor_ops ops); + int (*read_reg)(struct spi_nor *nor, u8 opcode, u8 *buf, int len); + int (*write_reg)(struct spi_nor *nor, u8 opcode, u8 *buf, int len); ++ int (*read_uuid)(struct spi_nor *nor); + + ssize_t (*read)(struct spi_nor *nor, loff_t from, + size_t len, u_char *read_buf); -- cgit v1.2.3