Adding upstream version 2.10.0+dfsg.upstream/2.10.0+dfsgupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 272 insertions, 0 deletions

diff --git a/include/drivers/mmc.h b/include/drivers/mmc.h
new file mode 100644
index 0000000..e94693d
--- /dev/null
+++ b/include/drivers/mmc.h
@@ -0,0 +1,272 @@
+/*
+ * Copyright (c) 2021-2022, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef MMC_H
+#define MMC_H
+
+#include <stdint.h>
+
+#include <lib/utils_def.h>
+
+#define MMC_BLOCK_SIZE			U(512)
+#define MMC_BLOCK_MASK			(MMC_BLOCK_SIZE - U(1))
+#define MMC_BOOT_CLK_RATE		(400 * 1000)
+
+#define MMC_CMD(_x)			U(_x)
+
+#define MMC_ACMD(_x)			U(_x)
+
+#define OCR_POWERUP			BIT(31)
+#define OCR_HCS				BIT(30)
+#define OCR_BYTE_MODE			(U(0) << 29)
+#define OCR_SECTOR_MODE			(U(2) << 29)
+#define OCR_ACCESS_MODE_MASK		(U(3) << 29)
+#define OCR_3_5_3_6			BIT(23)
+#define OCR_3_4_3_5			BIT(22)
+#define OCR_3_3_3_4			BIT(21)
+#define OCR_3_2_3_3			BIT(20)
+#define OCR_3_1_3_2			BIT(19)
+#define OCR_3_0_3_1			BIT(18)
+#define OCR_2_9_3_0			BIT(17)
+#define OCR_2_8_2_9			BIT(16)
+#define OCR_2_7_2_8			BIT(15)
+#define OCR_VDD_MIN_2V7			GENMASK(23, 15)
+#define OCR_VDD_MIN_2V0			GENMASK(14, 8)
+#define OCR_VDD_MIN_1V7			BIT(7)
+
+#define MMC_RSP_48			BIT(0)
+#define MMC_RSP_136			BIT(1)		/* 136 bit response */
+#define MMC_RSP_CRC			BIT(2)		/* expect valid crc */
+#define MMC_RSP_CMD_IDX			BIT(3)		/* response contains cmd idx */
+#define MMC_RSP_BUSY			BIT(4)		/* device may be busy */
+
+/* JEDEC 4.51 chapter 6.12 */
+#define MMC_RESPONSE_R1			(MMC_RSP_48 | MMC_RSP_CMD_IDX | MMC_RSP_CRC)
+#define MMC_RESPONSE_R1B		(MMC_RESPONSE_R1 | MMC_RSP_BUSY)
+#define MMC_RESPONSE_R2			(MMC_RSP_48 | MMC_RSP_136 | MMC_RSP_CRC)
+#define MMC_RESPONSE_R3			(MMC_RSP_48)
+#define MMC_RESPONSE_R4			(MMC_RSP_48)
+#define MMC_RESPONSE_R5			(MMC_RSP_48 | MMC_RSP_CRC | MMC_RSP_CMD_IDX)
+#define MMC_RESPONSE_R6			(MMC_RSP_48 | MMC_RSP_CRC | MMC_RSP_CMD_IDX)
+#define MMC_RESPONSE_R7			(MMC_RSP_48 | MMC_RSP_CRC | MMC_RSP_CMD_IDX)
+
+/* Value randomly chosen for eMMC RCA, it should be > 1 */
+#define MMC_FIX_RCA			6
+#define RCA_SHIFT_OFFSET		16
+
+#define CMD_EXTCSD_PARTITION_CONFIG	179
+#define CMD_EXTCSD_BUS_WIDTH		183
+#define CMD_EXTCSD_HS_TIMING		185
+#define CMD_EXTCSD_PART_SWITCH_TIME	199
+#define CMD_EXTCSD_SEC_CNT		212
+#define CMD_EXTCSD_BOOT_SIZE_MULT	226
+
+#define EXT_CSD_PART_CONFIG_ACC_MASK	GENMASK(2, 0)
+#define PART_CFG_BOOT_PARTITION1_ENABLE	(U(1) << 3)
+#define PART_CFG_BOOT_PARTITION1_ACCESS (U(1) << 0)
+#define PART_CFG_BOOT_PARTITION_NO_ACCESS	U(0)
+#define PART_CFG_BOOT_PART_EN_MASK		GENMASK(5, 3)
+#define PART_CFG_BOOT_PART_EN_SHIFT		3
+#define PART_CFG_CURRENT_BOOT_PARTITION(x)	(((x) & PART_CFG_BOOT_PART_EN_MASK) >> \
+	PART_CFG_BOOT_PART_EN_SHIFT)
+
+/* Values in EXT CSD register */
+#define MMC_BUS_WIDTH_1			U(0)
+#define MMC_BUS_WIDTH_4			U(1)
+#define MMC_BUS_WIDTH_8			U(2)
+#define MMC_BUS_WIDTH_DDR_4		U(5)
+#define MMC_BUS_WIDTH_DDR_8		U(6)
+#define MMC_BOOT_MODE_BACKWARD		(U(0) << 3)
+#define MMC_BOOT_MODE_HS_TIMING		(U(1) << 3)
+#define MMC_BOOT_MODE_DDR		(U(2) << 3)
+
+#define EXTCSD_SET_CMD			(U(0) << 24)
+#define EXTCSD_SET_BITS			(U(1) << 24)
+#define EXTCSD_CLR_BITS			(U(2) << 24)
+#define EXTCSD_WRITE_BYTES		(U(3) << 24)
+#define EXTCSD_CMD(x)			(((x) & 0xff) << 16)
+#define EXTCSD_VALUE(x)			(((x) & 0xff) << 8)
+#define EXTCSD_CMD_SET_NORMAL		U(1)
+
+#define CSD_TRAN_SPEED_UNIT_MASK	GENMASK(2, 0)
+#define CSD_TRAN_SPEED_MULT_MASK	GENMASK(6, 3)
+#define CSD_TRAN_SPEED_MULT_SHIFT	3
+
+#define STATUS_CURRENT_STATE(x)		(((x) & 0xf) << 9)
+#define STATUS_READY_FOR_DATA		BIT(8)
+#define STATUS_SWITCH_ERROR		BIT(7)
+#define MMC_GET_STATE(x)		(((x) >> 9) & 0xf)
+#define MMC_STATE_IDLE			0
+#define MMC_STATE_READY			1
+#define MMC_STATE_IDENT			2
+#define MMC_STATE_STBY			3
+#define MMC_STATE_TRAN			4
+#define MMC_STATE_DATA			5
+#define MMC_STATE_RCV			6
+#define MMC_STATE_PRG			7
+#define MMC_STATE_DIS			8
+#define MMC_STATE_BTST			9
+#define MMC_STATE_SLP			10
+
+#define MMC_FLAG_CMD23			(U(1) << 0)
+#define MMC_FLAG_SD_CMD6		(U(1) << 1)
+
+#define CMD8_CHECK_PATTERN		U(0xAA)
+#define VHS_2_7_3_6_V			BIT(8)
+
+#define SD_SCR_BUS_WIDTH_1		BIT(8)
+#define SD_SCR_BUS_WIDTH_4		BIT(10)
+
+#define SD_SWITCH_FUNC_CHECK		0U
+#define SD_SWITCH_FUNC_SWITCH		BIT(31)
+#define SD_SWITCH_ALL_GROUPS_MASK	GENMASK(23, 0)
+
+struct mmc_cmd {
+	unsigned int	cmd_idx;
+	unsigned int	cmd_arg;
+	unsigned int	resp_type;
+	unsigned int	resp_data[4];
+};
+
+struct mmc_ops {
+	void (*init)(void);
+	int (*send_cmd)(struct mmc_cmd *cmd);
+	int (*set_ios)(unsigned int clk, unsigned int width);
+	int (*prepare)(int lba, uintptr_t buf, size_t size);
+	int (*read)(int lba, uintptr_t buf, size_t size);
+	int (*write)(int lba, const uintptr_t buf, size_t size);
+};
+
+struct mmc_csd_emmc {
+	unsigned int		not_used:		1;
+	unsigned int		crc:			7;
+	unsigned int		ecc:			2;
+	unsigned int		file_format:		2;
+	unsigned int		tmp_write_protect:	1;
+	unsigned int		perm_write_protect:	1;
+	unsigned int		copy:			1;
+	unsigned int		file_format_grp:	1;
+
+	unsigned int		reserved_1:		5;
+	unsigned int		write_bl_partial:	1;
+	unsigned int		write_bl_len:		4;
+	unsigned int		r2w_factor:		3;
+	unsigned int		default_ecc:		2;
+	unsigned int		wp_grp_enable:		1;
+
+	unsigned int		wp_grp_size:		5;
+	unsigned int		erase_grp_mult:		5;
+	unsigned int		erase_grp_size:		5;
+	unsigned int		c_size_mult:		3;
+	unsigned int		vdd_w_curr_max:		3;
+	unsigned int		vdd_w_curr_min:		3;
+	unsigned int		vdd_r_curr_max:		3;
+	unsigned int		vdd_r_curr_min:		3;
+	unsigned int		c_size_low:		2;
+
+	unsigned int		c_size_high:		10;
+	unsigned int		reserved_2:		2;
+	unsigned int		dsr_imp:		1;
+	unsigned int		read_blk_misalign:	1;
+	unsigned int		write_blk_misalign:	1;
+	unsigned int		read_bl_partial:	1;
+	unsigned int		read_bl_len:		4;
+	unsigned int		ccc:			12;
+
+	unsigned int		tran_speed:		8;
+	unsigned int		nsac:			8;
+	unsigned int		taac:			8;
+	unsigned int		reserved_3:		2;
+	unsigned int		spec_vers:		4;
+	unsigned int		csd_structure:		2;
+};
+
+struct mmc_csd_sd_v2 {
+	unsigned int		not_used:		1;
+	unsigned int		crc:			7;
+	unsigned int		reserved_1:		2;
+	unsigned int		file_format:		2;
+	unsigned int		tmp_write_protect:	1;
+	unsigned int		perm_write_protect:	1;
+	unsigned int		copy:			1;
+	unsigned int		file_format_grp:	1;
+
+	unsigned int		reserved_2:		5;
+	unsigned int		write_bl_partial:	1;
+	unsigned int		write_bl_len:		4;
+	unsigned int		r2w_factor:		3;
+	unsigned int		reserved_3:		2;
+	unsigned int		wp_grp_enable:		1;
+
+	unsigned int		wp_grp_size:		7;
+	unsigned int		sector_size:		7;
+	unsigned int		erase_block_en:		1;
+	unsigned int		reserved_4:		1;
+	unsigned int		c_size_low:		16;
+
+	unsigned int		c_size_high:		6;
+	unsigned int		reserved_5:		6;
+	unsigned int		dsr_imp:		1;
+	unsigned int		read_blk_misalign:	1;
+	unsigned int		write_blk_misalign:	1;
+	unsigned int		read_bl_partial:	1;
+	unsigned int		read_bl_len:		4;
+	unsigned int		ccc:			12;
+
+	unsigned int		tran_speed:		8;
+	unsigned int		nsac:			8;
+	unsigned int		taac:			8;
+	unsigned int		reserved_6:		6;
+	unsigned int		csd_structure:		2;
+};
+
+struct sd_switch_status {
+	unsigned short		max_current;
+	unsigned short		support_g6;
+	unsigned short		support_g5;
+	unsigned short		support_g4;
+	unsigned short		support_g3;
+	unsigned short		support_g2;
+	unsigned short		support_g1;
+	unsigned char		sel_g6_g5;
+	unsigned char		sel_g4_g3;
+	unsigned char		sel_g2_g1;
+	unsigned char		data_struct_ver;
+	unsigned short		busy_g6;
+	unsigned short		busy_g5;
+	unsigned short		busy_g4;
+	unsigned short		busy_g3;
+	unsigned short		busy_g2;
+	unsigned short		busy_g1;
+	unsigned short		reserved[17];
+};
+
+enum mmc_device_type {
+	MMC_IS_EMMC,
+	MMC_IS_SD,
+	MMC_IS_SD_HC,
+};
+
+struct mmc_device_info {
+	unsigned long long	device_size;	/* Size of device in bytes */
+	unsigned int		block_size;	/* Block size in bytes */
+	unsigned int		max_bus_freq;	/* Max bus freq in Hz */
+	unsigned int		ocr_voltage;	/* OCR voltage */
+	enum mmc_device_type	mmc_dev_type;	/* Type of MMC */
+};
+
+size_t mmc_read_blocks(int lba, uintptr_t buf, size_t size);
+size_t mmc_write_blocks(int lba, const uintptr_t buf, size_t size);
+size_t mmc_erase_blocks(int lba, size_t size);
+int mmc_part_switch_current_boot(void);
+int mmc_part_switch_user(void);
+size_t mmc_boot_part_size(void);
+size_t mmc_boot_part_read_blocks(int lba, uintptr_t buf, size_t size);
+int mmc_init(const struct mmc_ops *ops_ptr, unsigned int clk,
+	     unsigned int width, unsigned int flags,
+	     struct mmc_device_info *device_info);
+
+#endif /* MMC_H */