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