Re: [U-Boot] [PATCH v5 1/4] dm: sf: Add Atmel DataFlash spi flash driver
On Tue, May 19, 2015 at 8:26 AM, Wang Haikun haikun.w...@freescale.com wrote: On 5/18/2015 9:28 PM, Haikun Wang wrote: Atmel DataFlash chips have commands different from common spi flash commands. Atmel DataFlash also have special page-size. This driver add support for accessing Atmel DataFlash. It is based on the Driver Model. Example: = sf probe 1:0 SPI DataFlash: Detected AT45DB021B with page size 264 Bytes, erase size 264 Bytes, total 264 KiB, revision d = sf erase 0 42000 SF: 270336 bytes @ 0x0 Erased: OK = mw.l 8200 45444342 2 = sf write 8200 0 42000 SF: 270336 bytes @ 0x0 Written: OK = sf read 8300 0 42000 SF: 270336 bytes @ 0x0 Read: OK = cmp.b 8200 8300 42000 Total of 270336 byte(s) were the same Signed-off-by: Haikun Wang haikun.w...@freescale.com --- Verified with AT45DB021B on LS1021AQDS. Changes in v5: - Change CONFIG_DM_SF_DATAFLASH to CONFIG_SF_DATAFLASH Changes in v4: - Use dev_get_priv and dev_get_uclass_priv - Add test log to commit message Changes in v3: - 1. Rename file spi_dataflash.c to sf_dataflash.c - 2. Add comment for array dataflash_data Changes in v2: - 1. Correct comment style - 2. Use get_timer in dataflash_waitready to check whether timeout - 3. Remove struct spi_flash * in struct dataflash, and get it from udevice-uclass_priv - 4. Replace spi_flash_write_common with spi_flash_cmd_write - 5. Replace spi_flash_read with spi_flash_cmd_read - 6. Change type of varible status form char to u8 in dataflash_status - 7. Change add_dataflash's argument type due to change 3 - 8. Add claim_bus and release_bus in erase/write/read due to change 4 5 Changes in v1: None drivers/mtd/spi/Makefile | 1 + drivers/mtd/spi/sf_dataflash.c | 711 + 2 files changed, 712 insertions(+) create mode 100644 drivers/mtd/spi/sf_dataflash.c Reviewed by: Chakra Divi cd...@openedev.com ___ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot ___ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
[U-Boot] [PATCH v5 1/4] dm: sf: Add Atmel DataFlash spi flash driver
Atmel DataFlash chips have commands different from common spi
flash commands.
Atmel DataFlash also have special page-size.
This driver add support for accessing Atmel DataFlash.
It is based on the Driver Model.
Example:
= sf probe 1:0
SPI DataFlash: Detected AT45DB021B with page size 264 Bytes, erase size 264
Bytes, total 264 KiB, revision d
= sf erase 0 42000
SF: 270336 bytes @ 0x0 Erased: OK
= mw.l 8200 45444342 2
= sf write 8200 0 42000
SF: 270336 bytes @ 0x0 Written: OK
= sf read 8300 0 42000
SF: 270336 bytes @ 0x0 Read: OK
= cmp.b 8200 8300 42000
Total of 270336 byte(s) were the same
Signed-off-by: Haikun Wang haikun.w...@freescale.com
---
Verified with AT45DB021B on LS1021AQDS.
Changes in v5:
- Change CONFIG_DM_SF_DATAFLASH to CONFIG_SF_DATAFLASH
Changes in v4:
- Use dev_get_priv and dev_get_uclass_priv
- Add test log to commit message
Changes in v3:
- 1. Rename file spi_dataflash.c to sf_dataflash.c
- 2. Add comment for array dataflash_data
Changes in v2:
- 1. Correct comment style
- 2. Use get_timer in dataflash_waitready to check whether timeout
- 3. Remove struct spi_flash * in struct dataflash, and get it from
udevice-uclass_priv
- 4. Replace spi_flash_write_common with spi_flash_cmd_write
- 5. Replace spi_flash_read with spi_flash_cmd_read
- 6. Change type of varible status form char to u8 in dataflash_status
- 7. Change add_dataflash's argument type due to change 3
- 8. Add claim_bus and release_bus in erase/write/read due to change 4 5
Changes in v1: None
drivers/mtd/spi/Makefile | 1 +
drivers/mtd/spi/sf_dataflash.c | 711 +
2 files changed, 712 insertions(+)
create mode 100644 drivers/mtd/spi/sf_dataflash.c
diff --git a/drivers/mtd/spi/Makefile b/drivers/mtd/spi/Makefile
index c61b784..87f20bc 100644
--- a/drivers/mtd/spi/Makefile
+++ b/drivers/mtd/spi/Makefile
@@ -15,6 +15,7 @@ endif
#ifndef CONFIG_DM_SPI
obj-$(CONFIG_SPI_FLASH) += sf_probe.o
#endif
+obj-$(CONFIG_SF_DATAFLASH) += sf_dataflash.o
obj-$(CONFIG_CMD_SF) += sf.o
obj-$(CONFIG_SPI_FLASH) += sf_ops.o sf_params.o
obj-$(CONFIG_SPI_FLASH_SANDBOX) += sandbox.o
diff --git a/drivers/mtd/spi/sf_dataflash.c b/drivers/mtd/spi/sf_dataflash.c
new file mode 100644
index 000..d287db8
--- /dev/null
+++ b/drivers/mtd/spi/sf_dataflash.c
@@ -0,0 +1,711 @@
+/*
+ *
+ * Atmel DataFlash probing
+ *
+ * Copyright (C) 2004-2009, 2015 Freescale Semiconductor, Inc.
+ * Haikun Wang (haikun.w...@freescale.com)
+ *
+ * SPDX-License-Identifier:GPL-2.0+
+*/
+#include common.h
+#include dm.h
+#include errno.h
+#include fdtdec.h
+#include spi.h
+#include spi_flash.h
+#include div64.h
+#include linux/err.h
+#include linux/math64.h
+
+#include sf_internal.h
+
+/*
+ * DataFlash is a kind of SPI flash. Most AT45 chips have two buffers in
+ * each chip, which may be used for double buffered I/O; but this driver
+ * doesn't (yet) use these for any kind of i/o overlap or prefetching.
+ *
+ * Sometimes DataFlash is packaged in MMC-format cards, although the
+ * MMC stack can't (yet?) distinguish between MMC and DataFlash
+ * protocols during enumeration.
+ */
+
+/* reads can bypass the buffers */
+#define OP_READ_CONTINUOUS 0xE8
+#define OP_READ_PAGE 0xD2
+
+/* group B requests can run even while status reports busy */
+#define OP_READ_STATUS 0xD7/* group B */
+
+/* move data between host and buffer */
+#define OP_READ_BUFFER10xD4/* group B */
+#define OP_READ_BUFFER20xD6/* group B */
+#define OP_WRITE_BUFFER1 0x84/* group B */
+#define OP_WRITE_BUFFER2 0x87/* group B */
+
+/* erasing flash */
+#define OP_ERASE_PAGE 0x81
+#define OP_ERASE_BLOCK 0x50
+
+/* move data between buffer and flash */
+#define OP_TRANSFER_BUF1 0x53
+#define OP_TRANSFER_BUF2 0x55
+#define OP_MREAD_BUFFER1 0xD4
+#define OP_MREAD_BUFFER2 0xD6
+#define OP_MWERASE_BUFFER1 0x83
+#define OP_MWERASE_BUFFER2 0x86
+#define OP_MWRITE_BUFFER1 0x88/* sector must be pre-erased */
+#define OP_MWRITE_BUFFER2 0x89/* sector must be pre-erased */
+
+/* write to buffer, then write-erase to flash */
+#define OP_PROGRAM_VIA_BUF10x82
+#define OP_PROGRAM_VIA_BUF20x85
+
+/* compare buffer to flash */
+#define OP_COMPARE_BUF10x60
+#define OP_COMPARE_BUF20x61
+
+/* read flash to buffer, then write-erase to flash */
+#define OP_REWRITE_VIA_BUF10x58
+#define OP_REWRITE_VIA_BUF20x59
+
+/*
+ * newer chips report JEDEC manufacturer and device IDs; chip
+ * serial number and OTP bits; and per-sector writeprotect.
+ */
+#define OP_READ_ID 0x9F
+#define OP_READ_SECURITY 0x77
+#define OP_WRITE_SECURITY_REVC 0x9A
+#define OP_WRITE_SECURITY 0x9B/* revision D */
+
+
+struct dataflash {
+ uint8_t command[16];
+ unsigned short page_offset;/* offset in flash address */
+};
+
Re: [U-Boot] [PATCH v5 1/4] dm: sf: Add Atmel DataFlash spi flash driver
On 5/18/2015 9:28 PM, Haikun Wang wrote: Atmel DataFlash chips have commands different from common spi flash commands. Atmel DataFlash also have special page-size. This driver add support for accessing Atmel DataFlash. It is based on the Driver Model. Example: = sf probe 1:0 SPI DataFlash: Detected AT45DB021B with page size 264 Bytes, erase size 264 Bytes, total 264 KiB, revision d = sf erase 0 42000 SF: 270336 bytes @ 0x0 Erased: OK = mw.l 8200 45444342 2 = sf write 8200 0 42000 SF: 270336 bytes @ 0x0 Written: OK = sf read 8300 0 42000 SF: 270336 bytes @ 0x0 Read: OK = cmp.b 8200 8300 42000 Total of 270336 byte(s) were the same Signed-off-by: Haikun Wang haikun.w...@freescale.com --- Verified with AT45DB021B on LS1021AQDS. Changes in v5: - Change CONFIG_DM_SF_DATAFLASH to CONFIG_SF_DATAFLASH Changes in v4: - Use dev_get_priv and dev_get_uclass_priv - Add test log to commit message Changes in v3: - 1. Rename file spi_dataflash.c to sf_dataflash.c - 2. Add comment for array dataflash_data Changes in v2: - 1. Correct comment style - 2. Use get_timer in dataflash_waitready to check whether timeout - 3. Remove struct spi_flash * in struct dataflash, and get it from udevice-uclass_priv - 4. Replace spi_flash_write_common with spi_flash_cmd_write - 5. Replace spi_flash_read with spi_flash_cmd_read - 6. Change type of varible status form char to u8 in dataflash_status - 7. Change add_dataflash's argument type due to change 3 - 8. Add claim_bus and release_bus in erase/write/read due to change 4 5 Changes in v1: None drivers/mtd/spi/Makefile | 1 + drivers/mtd/spi/sf_dataflash.c | 711 + 2 files changed, 712 insertions(+) create mode 100644 drivers/mtd/spi/sf_dataflash.c + York Sun Help him review the rest patches of this set. diff --git a/drivers/mtd/spi/Makefile b/drivers/mtd/spi/Makefile index c61b784..87f20bc 100644 --- a/drivers/mtd/spi/Makefile +++ b/drivers/mtd/spi/Makefile @@ -15,6 +15,7 @@ endif #ifndef CONFIG_DM_SPI obj-$(CONFIG_SPI_FLASH) += sf_probe.o #endif +obj-$(CONFIG_SF_DATAFLASH) += sf_dataflash.o obj-$(CONFIG_CMD_SF) += sf.o obj-$(CONFIG_SPI_FLASH) += sf_ops.o sf_params.o obj-$(CONFIG_SPI_FLASH_SANDBOX) += sandbox.o diff --git a/drivers/mtd/spi/sf_dataflash.c b/drivers/mtd/spi/sf_dataflash.c new file mode 100644 index 000..d287db8 --- /dev/null +++ b/drivers/mtd/spi/sf_dataflash.c @@ -0,0 +1,711 @@ +/* + * + * Atmel DataFlash probing + * + * Copyright (C) 2004-2009, 2015 Freescale Semiconductor, Inc. + * Haikun Wang (haikun.w...@freescale.com) + * + * SPDX-License-Identifier: GPL-2.0+ +*/ +#include common.h +#include dm.h +#include errno.h +#include fdtdec.h +#include spi.h +#include spi_flash.h +#include div64.h +#include linux/err.h +#include linux/math64.h + +#include sf_internal.h + +/* + * DataFlash is a kind of SPI flash. Most AT45 chips have two buffers in + * each chip, which may be used for double buffered I/O; but this driver + * doesn't (yet) use these for any kind of i/o overlap or prefetching. + * + * Sometimes DataFlash is packaged in MMC-format cards, although the + * MMC stack can't (yet?) distinguish between MMC and DataFlash + * protocols during enumeration. + */ + +/* reads can bypass the buffers */ +#define OP_READ_CONTINUOUS 0xE8 +#define OP_READ_PAGE 0xD2 + +/* group B requests can run even while status reports busy */ +#define OP_READ_STATUS 0xD7/* group B */ + +/* move data between host and buffer */ +#define OP_READ_BUFFER1 0xD4/* group B */ +#define OP_READ_BUFFER2 0xD6/* group B */ +#define OP_WRITE_BUFFER1 0x84/* group B */ +#define OP_WRITE_BUFFER2 0x87/* group B */ + +/* erasing flash */ +#define OP_ERASE_PAGE0x81 +#define OP_ERASE_BLOCK 0x50 + +/* move data between buffer and flash */ +#define OP_TRANSFER_BUF1 0x53 +#define OP_TRANSFER_BUF2 0x55 +#define OP_MREAD_BUFFER1 0xD4 +#define OP_MREAD_BUFFER2 0xD6 +#define OP_MWERASE_BUFFER1 0x83 +#define OP_MWERASE_BUFFER2 0x86 +#define OP_MWRITE_BUFFER10x88/* sector must be pre-erased */ +#define OP_MWRITE_BUFFER20x89/* sector must be pre-erased */ + +/* write to buffer, then write-erase to flash */ +#define OP_PROGRAM_VIA_BUF1 0x82 +#define OP_PROGRAM_VIA_BUF2 0x85 + +/* compare buffer to flash */ +#define OP_COMPARE_BUF1 0x60 +#define OP_COMPARE_BUF2 0x61 + +/* read flash to buffer, then write-erase to flash */ +#define OP_REWRITE_VIA_BUF1 0x58 +#define OP_REWRITE_VIA_BUF2 0x59 + +/* + * newer chips report JEDEC manufacturer and device IDs; chip + * serial number and OTP bits; and per-sector writeprotect. + */ +#define OP_READ_ID 0x9F +#define OP_READ_SECURITY 0x77 +#define
Re: [U-Boot] [PATCH v5 1/4] dm: sf: Add Atmel DataFlash spi flash driver
On 18 May 2015 at 07:24, Haikun Wang haikun.w...@freescale.com wrote: Atmel DataFlash chips have commands different from common spi flash commands. Atmel DataFlash also have special page-size. This driver add support for accessing Atmel DataFlash. It is based on the Driver Model. Example: = sf probe 1:0 SPI DataFlash: Detected AT45DB021B with page size 264 Bytes, erase size 264 Bytes, total 264 KiB, revision d = sf erase 0 42000 SF: 270336 bytes @ 0x0 Erased: OK = mw.l 8200 45444342 2 = sf write 8200 0 42000 SF: 270336 bytes @ 0x0 Written: OK = sf read 8300 0 42000 SF: 270336 bytes @ 0x0 Read: OK = cmp.b 8200 8300 42000 Total of 270336 byte(s) were the same Signed-off-by: Haikun Wang haikun.w...@freescale.com Reviewed-by: Simon Glass s...@chromium.org ___ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
