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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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801131321a
Implements HS400 mode support for exynos host driver. This also include some updates as new mode is added. Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com> Signed-off-by: Alim Akhtar <alim.akhtar@samsung.com> [Alim: addressed review comments] Tested-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
74 lines
2.5 KiB
C
74 lines
2.5 KiB
C
/*
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* Exynos Specific Extensions for Synopsys DW Multimedia Card Interface driver
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*
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* Copyright (C) 2012-2014 Samsung Electronics Co., Ltd.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#ifndef _DW_MMC_EXYNOS_H_
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#define _DW_MMC_EXYNOS_H_
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#define SDMMC_CLKSEL 0x09C
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#define SDMMC_CLKSEL64 0x0A8
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/* Extended Register's Offset */
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#define SDMMC_HS400_DQS_EN 0x180
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#define SDMMC_HS400_ASYNC_FIFO_CTRL 0x184
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#define SDMMC_HS400_DLINE_CTRL 0x188
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/* CLKSEL register defines */
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#define SDMMC_CLKSEL_CCLK_SAMPLE(x) (((x) & 7) << 0)
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#define SDMMC_CLKSEL_CCLK_DRIVE(x) (((x) & 7) << 16)
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#define SDMMC_CLKSEL_CCLK_DIVIDER(x) (((x) & 7) << 24)
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#define SDMMC_CLKSEL_GET_DRV_WD3(x) (((x) >> 16) & 0x7)
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#define SDMMC_CLKSEL_GET_DIV(x) (((x) >> 24) & 0x7)
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#define SDMMC_CLKSEL_UP_SAMPLE(x, y) (((x) & ~SDMMC_CLKSEL_CCLK_SAMPLE(7)) |\
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SDMMC_CLKSEL_CCLK_SAMPLE(y))
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#define SDMMC_CLKSEL_TIMING(x, y, z) (SDMMC_CLKSEL_CCLK_SAMPLE(x) | \
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SDMMC_CLKSEL_CCLK_DRIVE(y) | \
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SDMMC_CLKSEL_CCLK_DIVIDER(z))
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#define SDMMC_CLKSEL_TIMING_MASK SDMMC_CLKSEL_TIMING(0x7, 0x7, 0x7)
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#define SDMMC_CLKSEL_WAKEUP_INT BIT(11)
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/* RCLK_EN register defines */
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#define DATA_STROBE_EN BIT(0)
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#define AXI_NON_BLOCKING_WR BIT(7)
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/* DLINE_CTRL register defines */
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#define DQS_CTRL_RD_DELAY(x, y) (((x) & ~0x3FF) | ((y) & 0x3FF))
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#define DQS_CTRL_GET_RD_DELAY(x) ((x) & 0x3FF)
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/* Protector Register */
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#define SDMMC_EMMCP_BASE 0x1000
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#define SDMMC_MPSECURITY (SDMMC_EMMCP_BASE + 0x0010)
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#define SDMMC_MPSBEGIN0 (SDMMC_EMMCP_BASE + 0x0200)
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#define SDMMC_MPSEND0 (SDMMC_EMMCP_BASE + 0x0204)
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#define SDMMC_MPSCTRL0 (SDMMC_EMMCP_BASE + 0x020C)
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/* SMU control defines */
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#define SDMMC_MPSCTRL_SECURE_READ_BIT BIT(7)
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#define SDMMC_MPSCTRL_SECURE_WRITE_BIT BIT(6)
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#define SDMMC_MPSCTRL_NON_SECURE_READ_BIT BIT(5)
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#define SDMMC_MPSCTRL_NON_SECURE_WRITE_BIT BIT(4)
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#define SDMMC_MPSCTRL_USE_FUSE_KEY BIT(3)
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#define SDMMC_MPSCTRL_ECB_MODE BIT(2)
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#define SDMMC_MPSCTRL_ENCRYPTION BIT(1)
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#define SDMMC_MPSCTRL_VALID BIT(0)
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/* Maximum number of Ending sector */
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#define SDMMC_ENDING_SEC_NR_MAX 0xFFFFFFFF
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/* Fixed clock divider */
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#define EXYNOS4210_FIXED_CIU_CLK_DIV 2
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#define EXYNOS4412_FIXED_CIU_CLK_DIV 4
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#define HS400_FIXED_CIU_CLK_DIV 1
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/* Minimal required clock frequency for cclkin, unit: HZ */
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#define EXYNOS_CCLKIN_MIN 50000000
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#endif /* _DW_MMC_EXYNOS_H_ */
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