1/* SPDX-License-Identifier: GPL-2.0-only */
  2/*
  3 *  cb710/cb710-mmc.h
  4 *
  5 *  Copyright by Michał Mirosław, 2008-2009
  6 */
  7#ifndef LINUX_CB710_MMC_H
  8#define LINUX_CB710_MMC_H
  9
 10#include <linux/cb710.h>
 11
 12/* per-MMC-reader structure */
 13struct cb710_mmc_reader {
 14	struct tasklet_struct finish_req_tasklet;
 15	struct mmc_request *mrq;
 16	spinlock_t irq_lock;
 17	unsigned char last_power_mode;
 18};
 19
 20/* some device struct walking */
 21
 22static inline struct mmc_host *cb710_slot_to_mmc(struct cb710_slot *slot)
 23{
 24	return platform_get_drvdata(&slot->pdev);
 25}
 26
 27static inline struct cb710_slot *cb710_mmc_to_slot(struct mmc_host *mmc)
 28{
 29	struct platform_device *pdev = to_platform_device(mmc_dev(mmc));
 30	return cb710_pdev_to_slot(pdev);
 31}
 32
 33/* registers (this might be all wrong ;) */
 34
 35#define CB710_MMC_DATA_PORT		0x00
 36
 37#define CB710_MMC_CONFIG_PORT		0x04
 38#define CB710_MMC_CONFIG0_PORT		0x04
 39#define CB710_MMC_CONFIG1_PORT		0x05
 40#define   CB710_MMC_C1_4BIT_DATA_BUS		0x40
 41#define CB710_MMC_CONFIG2_PORT		0x06
 42#define   CB710_MMC_C2_READ_PIO_SIZE_MASK	0x0F	/* N-1 */
 43#define CB710_MMC_CONFIG3_PORT		0x07
 44
 45#define CB710_MMC_CONFIGB_PORT		0x08
 46
 47#define CB710_MMC_IRQ_ENABLE_PORT	0x0C
 48#define   CB710_MMC_IE_TEST_MASK		0x00BF
 49#define   CB710_MMC_IE_CARD_INSERTION_STATUS	0x1000
 50#define   CB710_MMC_IE_IRQ_ENABLE		0x8000
 51#define   CB710_MMC_IE_CISTATUS_MASK		\
 52		(CB710_MMC_IE_CARD_INSERTION_STATUS|CB710_MMC_IE_IRQ_ENABLE)
 53
 54#define CB710_MMC_STATUS_PORT		0x10
 55#define   CB710_MMC_STATUS_ERROR_EVENTS		0x60FF
 56#define CB710_MMC_STATUS0_PORT		0x10
 57#define   CB710_MMC_S0_FIFO_UNDERFLOW		0x40
 58#define CB710_MMC_STATUS1_PORT		0x11
 59#define   CB710_MMC_S1_COMMAND_SENT		0x01
 60#define   CB710_MMC_S1_DATA_TRANSFER_DONE	0x02
 61#define   CB710_MMC_S1_PIO_TRANSFER_DONE	0x04
 62#define   CB710_MMC_S1_CARD_CHANGED		0x10
 63#define   CB710_MMC_S1_RESET			0x20
 64#define CB710_MMC_STATUS2_PORT		0x12
 65#define   CB710_MMC_S2_FIFO_READY		0x01
 66#define   CB710_MMC_S2_FIFO_EMPTY		0x02
 67#define   CB710_MMC_S2_BUSY_10			0x10
 68#define   CB710_MMC_S2_BUSY_20			0x20
 69#define CB710_MMC_STATUS3_PORT		0x13
 70#define   CB710_MMC_S3_CARD_DETECTED		0x02
 71#define   CB710_MMC_S3_WRITE_PROTECTED		0x04
 72
 73#define CB710_MMC_CMD_TYPE_PORT		0x14
 74#define   CB710_MMC_RSP_TYPE_MASK		0x0007
 75#define     CB710_MMC_RSP_R1			(0)
 76#define     CB710_MMC_RSP_136			(5)
 77#define     CB710_MMC_RSP_NO_CRC		(2)
 78#define   CB710_MMC_RSP_PRESENT_MASK		0x0018
 79#define     CB710_MMC_RSP_NONE			(0 << 3)
 80#define     CB710_MMC_RSP_PRESENT		(1 << 3)
 81#define     CB710_MMC_RSP_PRESENT_X		(2 << 3)
 82#define   CB710_MMC_CMD_TYPE_MASK		0x0060
 83#define     CB710_MMC_CMD_BC			(0 << 5)
 84#define     CB710_MMC_CMD_BCR			(1 << 5)
 85#define     CB710_MMC_CMD_AC			(2 << 5)
 86#define     CB710_MMC_CMD_ADTC			(3 << 5)
 87#define   CB710_MMC_DATA_READ			0x0080
 88#define   CB710_MMC_CMD_CODE_MASK		0x3F00
 89#define   CB710_MMC_CMD_CODE_SHIFT		8
 90#define   CB710_MMC_IS_APP_CMD			0x4000
 91#define   CB710_MMC_RSP_BUSY			0x8000
 92
 93#define CB710_MMC_CMD_PARAM_PORT	0x18
 94#define CB710_MMC_TRANSFER_SIZE_PORT	0x1C
 95#define CB710_MMC_RESPONSE0_PORT	0x20
 96#define CB710_MMC_RESPONSE1_PORT	0x24
 97#define CB710_MMC_RESPONSE2_PORT	0x28
 98#define CB710_MMC_RESPONSE3_PORT	0x2C
 99
100#endif /* LINUX_CB710_MMC_H */