mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-07 05:34:28 +00:00
0dbb54eb32
Amlogic SM1 SoCs doesn't work over 50MHz. When phase sets to 270', it's working fine over 50MHz on Amlogic SM1 SoCs. Since Other Amlogic SoCs doens't report an issue, phase value is using to 180' by default. To distinguish which value is used adds an u-boot only sm1 compatible. In future, it needs to find what value is a proper about each SoCs. Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Tested-by: Anand Moon <linux.amoon@gmail.com>
94 lines
2.6 KiB
C
94 lines
2.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* (C) Copyright 2016 Carlo Caione <carlo@caione.org>
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*/
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#ifndef __MESON_GX_MMC_H__
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#define __MESON_GX_MMC_H__
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#include <mmc.h>
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#include <linux/bitops.h>
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enum meson_gx_mmc_compatible {
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MMC_COMPATIBLE_GX,
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MMC_COMPATIBLE_SM1,
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};
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#define SDIO_PORT_A 0
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#define SDIO_PORT_B 1
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#define SDIO_PORT_C 2
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#define SD_EMMC_CLKSRC_24M 24000000 /* 24 MHz */
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#define SD_EMMC_CLKSRC_DIV2 1000000000 /* 1 GHz */
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#define MESON_SD_EMMC_CLOCK 0x00
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#define CLK_MAX_DIV 63
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#define CLK_SRC_24M (0 << 6)
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#define CLK_SRC_DIV2 (1 << 6)
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#define CLK_CO_PHASE_000 (0 << 8)
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#define CLK_CO_PHASE_090 (1 << 8)
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#define CLK_CO_PHASE_180 (2 << 8)
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#define CLK_CO_PHASE_270 (3 << 8)
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#define CLK_TX_PHASE_000 (0 << 10)
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#define CLK_TX_PHASE_090 (1 << 10)
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#define CLK_TX_PHASE_180 (2 << 10)
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#define CLK_TX_PHASE_270 (3 << 10)
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#define CLK_ALWAYS_ON BIT(24)
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#define MESON_SD_EMMC_CFG 0x44
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#define CFG_BUS_WIDTH_MASK GENMASK(1, 0)
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#define CFG_BUS_WIDTH_1 0
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#define CFG_BUS_WIDTH_4 1
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#define CFG_BUS_WIDTH_8 2
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#define CFG_BL_LEN_MASK GENMASK(7, 4)
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#define CFG_BL_LEN_SHIFT 4
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#define CFG_BL_LEN_512 (9 << 4)
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#define CFG_RESP_TIMEOUT_MASK GENMASK(11, 8)
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#define CFG_RESP_TIMEOUT_256 (8 << 8)
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#define CFG_RC_CC_MASK GENMASK(15, 12)
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#define CFG_RC_CC_16 (4 << 12)
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#define CFG_SDCLK_ALWAYS_ON BIT(18)
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#define CFG_AUTO_CLK BIT(23)
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#define MESON_SD_EMMC_STATUS 0x48
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#define STATUS_MASK GENMASK(15, 0)
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#define STATUS_ERR_MASK GENMASK(12, 0)
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#define STATUS_RXD_ERR_MASK GENMASK(7, 0)
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#define STATUS_TXD_ERR BIT(8)
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#define STATUS_DESC_ERR BIT(9)
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#define STATUS_RESP_ERR BIT(10)
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#define STATUS_RESP_TIMEOUT BIT(11)
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#define STATUS_DESC_TIMEOUT BIT(12)
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#define STATUS_END_OF_CHAIN BIT(13)
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#define MESON_SD_EMMC_IRQ_EN 0x4c
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#define MESON_SD_EMMC_CMD_CFG 0x50
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#define CMD_CFG_LENGTH_MASK GENMASK(8, 0)
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#define CMD_CFG_BLOCK_MODE BIT(9)
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#define CMD_CFG_R1B BIT(10)
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#define CMD_CFG_END_OF_CHAIN BIT(11)
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#define CMD_CFG_TIMEOUT_4S (12 << 12)
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#define CMD_CFG_NO_RESP BIT(16)
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#define CMD_CFG_DATA_IO BIT(18)
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#define CMD_CFG_DATA_WR BIT(19)
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#define CMD_CFG_RESP_NOCRC BIT(20)
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#define CMD_CFG_RESP_128 BIT(21)
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#define CMD_CFG_CMD_INDEX_SHIFT 24
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#define CMD_CFG_OWNER BIT(31)
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#define MESON_SD_EMMC_CMD_ARG 0x54
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#define MESON_SD_EMMC_CMD_DAT 0x58
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#define MESON_SD_EMMC_CMD_RSP 0x5c
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#define MESON_SD_EMMC_CMD_RSP1 0x60
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#define MESON_SD_EMMC_CMD_RSP2 0x64
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#define MESON_SD_EMMC_CMD_RSP3 0x68
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struct meson_mmc_platdata {
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struct mmc_config cfg;
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struct mmc mmc;
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void *regbase;
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void *w_buf;
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};
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#endif
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