Merge "mtd: devices: Add new Pagescope read feature for sdxprairie" (99a0ec09) · Commits · e / devices / android_kernel_xiaomi_sm6125

drivers/mtd/devices/msm_qpic_nand.c

+883 −4

File changed.

Preview size limit exceeded, changes collapsed.

drivers/mtd/devices/msm_qpic_nand.h

+27 −0

Original line number	Diff line number	Diff line
		@@ -182,6 +182,14 @@
		#define MSM_NAND_READ_LOCATION_1(info) MSM_NAND_REG(info, 0x30F24)
		#define MSM_NAND_READ_LOCATION_LAST_CW_0(info) MSM_NAND_REG(info, 0x30F40)
		#define MSM_NAND_READ_LOCATION_LAST_CW_1(info) MSM_NAND_REG(info, 0x30F44)
		#define MSM_NAND_AUTO_STATUS_EN(info) MSM_NAND_REG(info, 0x3002c)

		#define NAND_FLASH_STATUS_EN BIT(0)
		#define NANDC_BUFFER_STATUS_EN BIT(1)
		#define NAND_ERASED_CW_DETECT_STATUS_EN BIT(3)
		#define NAND_FLASH_STATUS_LAST_CW_EN BIT(16)
		#define NANDC_BUFFER_STATUS_LAST_CW_EN BIT(17)
		#define NAND_ERASED_CW_DETECT_STATUS_LAST_CW_EN BIT(19)

		/* device commands */
		#define MSM_NAND_CMD_PAGE_READ 0x32
		@@ -194,6 +202,11 @@
		#define MSM_NAND_CMD_BLOCK_ERASE 0x3A
		#define MSM_NAND_CMD_FETCH_ID 0x0B

		/* device read commands for pagescope */

		#define MSM_NAND_CMD_PAGE_READ_ECC_PS 0x800033
		#define MSM_NAND_CMD_PAGE_READ_ALL_PS 0x800034

		/* Version Mask */
		#define MSM_NAND_VERSION_MAJOR_MASK 0xF0000000
		#define MSM_NAND_VERSION_MAJOR_SHIFT 28
		@@ -231,6 +244,17 @@ struct msm_nand_rw_cmd_desc {
		struct msm_nand_cmd_cw_desc cw_desc[];
		};

		/*
		* Structure that holds the flash, buffer,
		* erased codeword status after every codeword
		* read during Pagescope read operation.
		*/
		struct msm_nand_read_status_desc {
		uint32_t flash_status;
		uint32_t buffer_status;
		uint32_t erased_cw_status;
		};

		/*
		* Structure that defines the NAND controller properties as per the
		* NAND flash device/chip that is attached.
		@@ -258,6 +282,9 @@ struct msm_nand_chip {
		uint32_t ecc_bch_cfg;
		uint32_t ecc_cfg_raw;
		uint32_t qpic_version; /* To store the qpic controller version */
		uint32_t caps; /* General host capabilities */
		#define MSM_NAND_CAP_PAGE_SCOPE_READ BIT(0)
		#define MSM_NAND_CAP_MULTI_PAGE_READ BIT(1)
		};

		/* Structure that defines an SPS end point for a NANDc BAM pipe. */