110 lines
3.0 KiB
C
110 lines
3.0 KiB
C
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/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Freescale eSDHC controller driver generics for OF and pltfm.
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*
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* Copyright (c) 2007 Freescale Semiconductor, Inc.
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* Copyright (c) 2009 MontaVista Software, Inc.
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* Copyright (c) 2010 Pengutronix e.K.
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* Copyright 2020 NXP
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* Author: Wolfram Sang <kernel@pengutronix.de>
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*/
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#ifndef _DRIVERS_MMC_SDHCI_ESDHC_H
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#define _DRIVERS_MMC_SDHCI_ESDHC_H
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/*
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* Ops and quirks for the Freescale eSDHC controller.
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*/
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#define ESDHC_DEFAULT_QUIRKS (SDHCI_QUIRK_FORCE_BLK_SZ_2048 | \
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SDHCI_QUIRK_32BIT_DMA_ADDR | \
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SDHCI_QUIRK_NO_BUSY_IRQ | \
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SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK | \
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SDHCI_QUIRK_PIO_NEEDS_DELAY | \
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SDHCI_QUIRK_NO_HISPD_BIT)
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/* pltfm-specific */
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#define ESDHC_HOST_CONTROL_LE 0x20
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/*
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* eSDHC register definition
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*/
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/* Present State Register */
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#define ESDHC_PRSSTAT 0x24
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#define ESDHC_CLOCK_GATE_OFF 0x00000080
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#define ESDHC_CLOCK_STABLE 0x00000008
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/* Protocol Control Register */
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#define ESDHC_PROCTL 0x28
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#define ESDHC_VOLT_SEL 0x00000400
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#define ESDHC_CTRL_4BITBUS (0x1 << 1)
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#define ESDHC_CTRL_8BITBUS (0x2 << 1)
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#define ESDHC_CTRL_BUSWIDTH_MASK (0x3 << 1)
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#define ESDHC_HOST_CONTROL_RES 0x01
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/* System Control Register */
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#define ESDHC_SYSTEM_CONTROL 0x2c
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#define ESDHC_CLOCK_MASK 0x0000fff0
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#define ESDHC_PREDIV_SHIFT 8
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#define ESDHC_DIVIDER_SHIFT 4
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#define ESDHC_CLOCK_SDCLKEN 0x00000008
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#define ESDHC_CLOCK_PEREN 0x00000004
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#define ESDHC_CLOCK_HCKEN 0x00000002
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#define ESDHC_CLOCK_IPGEN 0x00000001
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/* System Control 2 Register */
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#define ESDHC_SYSTEM_CONTROL_2 0x3c
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#define ESDHC_SMPCLKSEL 0x00800000
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#define ESDHC_EXTN 0x00400000
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/* Host Controller Capabilities Register 2 */
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#define ESDHC_CAPABILITIES_1 0x114
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/* Tuning Block Control Register */
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#define ESDHC_TBCTL 0x120
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#define ESDHC_HS400_WNDW_ADJUST 0x00000040
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#define ESDHC_HS400_MODE 0x00000010
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#define ESDHC_TB_EN 0x00000004
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#define ESDHC_TB_MODE_MASK 0x00000003
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#define ESDHC_TB_MODE_SW 0x00000003
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#define ESDHC_TB_MODE_3 0x00000002
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#define ESDHC_TBSTAT 0x124
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#define ESDHC_TBPTR 0x128
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#define ESDHC_WNDW_STRT_PTR_SHIFT 8
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#define ESDHC_WNDW_STRT_PTR_MASK (0x7f << 8)
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#define ESDHC_WNDW_END_PTR_MASK 0x7f
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/* SD Clock Control Register */
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#define ESDHC_SDCLKCTL 0x144
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#define ESDHC_LPBK_CLK_SEL 0x80000000
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#define ESDHC_CMD_CLK_CTL 0x00008000
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/* SD Timing Control Register */
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#define ESDHC_SDTIMNGCTL 0x148
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#define ESDHC_FLW_CTL_BG 0x00008000
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/* DLL Config 0 Register */
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#define ESDHC_DLLCFG0 0x160
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#define ESDHC_DLL_ENABLE 0x80000000
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#define ESDHC_DLL_RESET 0x40000000
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#define ESDHC_DLL_FREQ_SEL 0x08000000
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/* DLL Config 1 Register */
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#define ESDHC_DLLCFG1 0x164
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#define ESDHC_DLL_PD_PULSE_STRETCH_SEL 0x80000000
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/* DLL Status 0 Register */
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#define ESDHC_DLLSTAT0 0x170
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#define ESDHC_DLL_STS_SLV_LOCK 0x08000000
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/* Control Register for DMA transfer */
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#define ESDHC_DMA_SYSCTL 0x40c
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#define ESDHC_PERIPHERAL_CLK_SEL 0x00080000
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#define ESDHC_FLUSH_ASYNC_FIFO 0x00040000
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#define ESDHC_DMA_SNOOP 0x00000040
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#endif /* _DRIVERS_MMC_SDHCI_ESDHC_H */
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