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c9aa831ee2
tegra_mmc_init() now parses the DT info for bus width, WP/CD GPIOs, etc. Tested on Seaboard, fully functional. Tamonten boards (medcom-wide, plutux, and tec) use a different/new dtsi file w/common settings. Signed-off-by: Tom Warren <twarren@nvidia.com> Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de> Reviewed-by: Stephen Warren <swarren@nvidia.com>
136 lines
5.7 KiB
C
136 lines
5.7 KiB
C
/*
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* (C) Copyright 2009 SAMSUNG Electronics
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* Minkyu Kang <mk7.kang@samsung.com>
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* Portions Copyright (C) 2011-2012 NVIDIA Corporation
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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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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#ifndef __TEGRA_MMC_H_
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#define __TEGRA_MMC_H_
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#define TEGRA_SDMMC1_BASE 0xC8000000
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#define TEGRA_SDMMC2_BASE 0xC8000200
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#define TEGRA_SDMMC3_BASE 0xC8000400
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#define TEGRA_SDMMC4_BASE 0xC8000600
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#define MAX_HOSTS 4 /* Max number of 'hosts'/controllers */
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#ifndef __ASSEMBLY__
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struct tegra_mmc {
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unsigned int sysad; /* _SYSTEM_ADDRESS_0 */
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unsigned short blksize; /* _BLOCK_SIZE_BLOCK_COUNT_0 15:00 */
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unsigned short blkcnt; /* _BLOCK_SIZE_BLOCK_COUNT_0 31:16 */
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unsigned int argument; /* _ARGUMENT_0 */
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unsigned short trnmod; /* _CMD_XFER_MODE_0 15:00 xfer mode */
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unsigned short cmdreg; /* _CMD_XFER_MODE_0 31:16 cmd reg */
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unsigned int rspreg0; /* _RESPONSE_R0_R1_0 CMD RESP 31:00 */
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unsigned int rspreg1; /* _RESPONSE_R2_R3_0 CMD RESP 63:32 */
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unsigned int rspreg2; /* _RESPONSE_R4_R5_0 CMD RESP 95:64 */
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unsigned int rspreg3; /* _RESPONSE_R6_R7_0 CMD RESP 127:96 */
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unsigned int bdata; /* _BUFFER_DATA_PORT_0 */
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unsigned int prnsts; /* _PRESENT_STATE_0 */
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unsigned char hostctl; /* _POWER_CONTROL_HOST_0 7:00 */
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unsigned char pwrcon; /* _POWER_CONTROL_HOST_0 15:8 */
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unsigned char blkgap; /* _POWER_CONTROL_HOST_9 23:16 */
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unsigned char wakcon; /* _POWER_CONTROL_HOST_0 31:24 */
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unsigned short clkcon; /* _CLOCK_CONTROL_0 15:00 */
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unsigned char timeoutcon; /* _TIMEOUT_CTRL 23:16 */
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unsigned char swrst; /* _SW_RESET_ 31:24 */
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unsigned int norintsts; /* _INTERRUPT_STATUS_0 */
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unsigned int norintstsen; /* _INTERRUPT_STATUS_ENABLE_0 */
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unsigned int norintsigen; /* _INTERRUPT_SIGNAL_ENABLE_0 */
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unsigned short acmd12errsts; /* _AUTO_CMD12_ERR_STATUS_0 15:00 */
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unsigned char res1[2]; /* _RESERVED 31:16 */
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unsigned int capareg; /* _CAPABILITIES_0 */
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unsigned char res2[4]; /* RESERVED, offset 44h-47h */
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unsigned int maxcurr; /* _MAXIMUM_CURRENT_0 */
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unsigned char res3[4]; /* RESERVED, offset 4Ch-4Fh */
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unsigned short setacmd12err; /* offset 50h */
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unsigned short setinterr; /* offset 52h */
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unsigned char admaerr; /* offset 54h */
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unsigned char res4[3]; /* RESERVED, offset 55h-57h */
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unsigned long admaaddr; /* offset 58h-5Fh */
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unsigned char res5[0x9c]; /* RESERVED, offset 60h-FBh */
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unsigned short slotintstatus; /* offset FCh */
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unsigned short hcver; /* HOST Version */
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unsigned char res6[0x100]; /* RESERVED, offset 100h-1FFh */
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};
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#define TEGRA_MMC_HOSTCTL_DMASEL_MASK (3 << 3)
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#define TEGRA_MMC_HOSTCTL_DMASEL_SDMA (0 << 3)
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#define TEGRA_MMC_HOSTCTL_DMASEL_ADMA2_32BIT (2 << 3)
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#define TEGRA_MMC_HOSTCTL_DMASEL_ADMA2_64BIT (3 << 3)
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#define TEGRA_MMC_TRNMOD_DMA_ENABLE (1 << 0)
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#define TEGRA_MMC_TRNMOD_BLOCK_COUNT_ENABLE (1 << 1)
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#define TEGRA_MMC_TRNMOD_DATA_XFER_DIR_SEL_WRITE (0 << 4)
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#define TEGRA_MMC_TRNMOD_DATA_XFER_DIR_SEL_READ (1 << 4)
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#define TEGRA_MMC_TRNMOD_MULTI_BLOCK_SELECT (1 << 5)
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#define TEGRA_MMC_CMDREG_RESP_TYPE_SELECT_MASK (3 << 0)
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#define TEGRA_MMC_CMDREG_RESP_TYPE_SELECT_NO_RESPONSE (0 << 0)
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#define TEGRA_MMC_CMDREG_RESP_TYPE_SELECT_LENGTH_136 (1 << 0)
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#define TEGRA_MMC_CMDREG_RESP_TYPE_SELECT_LENGTH_48 (2 << 0)
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#define TEGRA_MMC_CMDREG_RESP_TYPE_SELECT_LENGTH_48_BUSY (3 << 0)
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#define TEGRA_MMC_TRNMOD_CMD_CRC_CHECK (1 << 3)
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#define TEGRA_MMC_TRNMOD_CMD_INDEX_CHECK (1 << 4)
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#define TEGRA_MMC_TRNMOD_DATA_PRESENT_SELECT_DATA_TRANSFER (1 << 5)
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#define TEGRA_MMC_PRNSTS_CMD_INHIBIT_CMD (1 << 0)
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#define TEGRA_MMC_PRNSTS_CMD_INHIBIT_DAT (1 << 1)
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#define TEGRA_MMC_CLKCON_INTERNAL_CLOCK_ENABLE (1 << 0)
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#define TEGRA_MMC_CLKCON_INTERNAL_CLOCK_STABLE (1 << 1)
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#define TEGRA_MMC_CLKCON_SD_CLOCK_ENABLE (1 << 2)
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#define TEGRA_MMC_CLKCON_SDCLK_FREQ_SEL_SHIFT 8
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#define TEGRA_MMC_CLKCON_SDCLK_FREQ_SEL_MASK (0xff << 8)
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#define TEGRA_MMC_SWRST_SW_RESET_FOR_ALL (1 << 0)
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#define TEGRA_MMC_SWRST_SW_RESET_FOR_CMD_LINE (1 << 1)
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#define TEGRA_MMC_SWRST_SW_RESET_FOR_DAT_LINE (1 << 2)
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#define TEGRA_MMC_NORINTSTS_CMD_COMPLETE (1 << 0)
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#define TEGRA_MMC_NORINTSTS_XFER_COMPLETE (1 << 1)
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#define TEGRA_MMC_NORINTSTS_DMA_INTERRUPT (1 << 3)
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#define TEGRA_MMC_NORINTSTS_ERR_INTERRUPT (1 << 15)
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#define TEGRA_MMC_NORINTSTS_CMD_TIMEOUT (1 << 16)
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#define TEGRA_MMC_NORINTSTSEN_CMD_COMPLETE (1 << 0)
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#define TEGRA_MMC_NORINTSTSEN_XFER_COMPLETE (1 << 1)
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#define TEGRA_MMC_NORINTSTSEN_DMA_INTERRUPT (1 << 3)
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#define TEGRA_MMC_NORINTSTSEN_BUFFER_WRITE_READY (1 << 4)
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#define TEGRA_MMC_NORINTSTSEN_BUFFER_READ_READY (1 << 5)
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#define TEGRA_MMC_NORINTSIGEN_XFER_COMPLETE (1 << 1)
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struct mmc_host {
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struct tegra_mmc *reg;
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int id; /* device id/number, 0-3 */
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int enabled; /* 1 to enable, 0 to disable */
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int width; /* Bus Width, 1, 4 or 8 */
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enum periph_id mmc_id; /* Peripheral ID: PERIPH_ID_... */
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struct fdt_gpio_state cd_gpio; /* Change Detect GPIO */
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struct fdt_gpio_state pwr_gpio; /* Power GPIO */
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struct fdt_gpio_state wp_gpio; /* Write Protect GPIO */
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unsigned int version; /* SDHCI spec. version */
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unsigned int clock; /* Current clock (MHz) */
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};
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#endif /* __ASSEMBLY__ */
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#endif /* __TEGRA_MMC_H_ */
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