| /* 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 <kernel@pengutronix.de> |
| */ |
| |
| #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 */ |
