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/* SPDX-License-Identifier: GPL-2.0+ */
#ifndef __OMAP3_SPI_H_
#define __OMAP3_SPI_H_
/* per-register bitmasks */
#define OMAP3_MCSPI_SYSCONFIG_SMARTIDLE (2 << 3)
#define OMAP3_MCSPI_SYSCONFIG_ENAWAKEUP BIT(2)
#define OMAP3_MCSPI_SYSCONFIG_AUTOIDLE BIT(0)
#define OMAP3_MCSPI_SYSCONFIG_SOFTRESET BIT(1)
#define OMAP3_MCSPI_SYSSTATUS_RESETDONE BIT(0)
#define OMAP3_MCSPI_MODULCTRL_SINGLE BIT(0)
#define OMAP3_MCSPI_MODULCTRL_MS BIT(2)
#define OMAP3_MCSPI_MODULCTRL_STEST BIT(3)
#define OMAP3_MCSPI_CHCONF_PHA BIT(0)
#define OMAP3_MCSPI_CHCONF_POL BIT(1)
#define OMAP3_MCSPI_CHCONF_CLKD_MASK GENMASK(5, 2)
#define OMAP3_MCSPI_CHCONF_EPOL BIT(6)
#define OMAP3_MCSPI_CHCONF_WL_MASK GENMASK(11, 7)
#define OMAP3_MCSPI_CHCONF_TRM_RX_ONLY BIT(12)
#define OMAP3_MCSPI_CHCONF_TRM_TX_ONLY BIT(13)
#define OMAP3_MCSPI_CHCONF_TRM_MASK GENMASK(13, 12)
#define OMAP3_MCSPI_CHCONF_DMAW BIT(14)
#define OMAP3_MCSPI_CHCONF_DMAR BIT(15)
#define OMAP3_MCSPI_CHCONF_DPE0 BIT(16)
#define OMAP3_MCSPI_CHCONF_DPE1 BIT(17)
#define OMAP3_MCSPI_CHCONF_IS BIT(18)
#define OMAP3_MCSPI_CHCONF_TURBO BIT(19)
#define OMAP3_MCSPI_CHCONF_FORCE BIT(20)
#define OMAP3_MCSPI_CHSTAT_RXS BIT(0)
#define OMAP3_MCSPI_CHSTAT_TXS BIT(1)
#define OMAP3_MCSPI_CHSTAT_EOT BIT(2)
#define OMAP3_MCSPI_CHCTRL_EN BIT(0)
#define OMAP3_MCSPI_CHCTRL_DIS (0 << 0)
#define OMAP3_MCSPI_WAKEUPENABLE_WKEN BIT(0)
#define MCSPI_PINDIR_D0_IN_D1_OUT 0
#define MCSPI_PINDIR_D0_OUT_D1_IN 1
#define OMAP3_MCSPI_MAX_FREQ 48000000
#define SPI_WAIT_TIMEOUT 10
#define OMAP4_MCSPI_REG_OFFSET 0x100
/* OMAP3 McSPI registers */
struct mcspi_channel {
unsigned int chconf; /* 0x2C, 0x40, 0x54, 0x68 */
unsigned int chstat; /* 0x30, 0x44, 0x58, 0x6C */
unsigned int chctrl; /* 0x34, 0x48, 0x5C, 0x70 */
unsigned int tx; /* 0x38, 0x4C, 0x60, 0x74 */
unsigned int rx; /* 0x3C, 0x50, 0x64, 0x78 */
};
struct mcspi {
unsigned char res1[0x10];
unsigned int sysconfig; /* 0x10 */
unsigned int sysstatus; /* 0x14 */
unsigned int irqstatus; /* 0x18 */
unsigned int irqenable; /* 0x1C */
unsigned int wakeupenable; /* 0x20 */
unsigned int syst; /* 0x24 */
unsigned int modulctrl; /* 0x28 */
struct mcspi_channel channel[4];
/* channel0: 0x2C - 0x3C, bus 0 & 1 & 2 & 3 */
/* channel1: 0x40 - 0x50, bus 0 & 1 */
/* channel2: 0x54 - 0x64, bus 0 & 1 */
/* channel3: 0x68 - 0x78, bus 0 */
};
struct omap3_spi_plat {
struct mcspi *regs;
unsigned int pin_dir:1;
};
#endif
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