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/*
* ARM PrimeCell MultiMedia Card Interface - PL180
*
* Copyright (C) ST-Ericsson SA 2010
*
* Author: Ulf Hansson <ulf.hansson@stericsson.com>
* Author: Martin Lundholm <martin.xa.lundholm@stericsson.com>
* Ported to drivers/mmc/ by: Matt Waddel <matt.waddel@linaro.org>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef __ARM_PL180_MMCI_H__
#define __ARM_PL180_MMCI_H__
#define COMMAND_REG_DELAY 300
#define DATA_REG_DELAY 1000
#define CLK_CHANGE_DELAY 2000
#define INIT_PWR 0xBF /* Power on, full power, not open drain */
#define ARM_MCLK (100*1000*1000)
/* SDI Power Control register bits */
#define SDI_PWR_PWRCTRL_MASK 0x00000003
#define SDI_PWR_PWRCTRL_ON 0x00000003
#define SDI_PWR_PWRCTRL_OFF 0x00000000
#define SDI_PWR_DAT2DIREN 0x00000004
#define SDI_PWR_CMDDIREN 0x00000008
#define SDI_PWR_DAT0DIREN 0x00000010
#define SDI_PWR_DAT31DIREN 0x00000020
#define SDI_PWR_OPD 0x00000040
#define SDI_PWR_FBCLKEN 0x00000080
#define SDI_PWR_DAT74DIREN 0x00000100
#define SDI_PWR_RSTEN 0x00000200
#define VOLTAGE_WINDOW_MMC 0x00FF8080
#define VOLTAGE_WINDOW_SD 0x80010000
/* SDI clock control register bits */
#define SDI_CLKCR_CLKDIV_MASK 0x000000FF
#define SDI_CLKCR_CLKEN 0x00000100
#define SDI_CLKCR_PWRSAV 0x00000200
#define SDI_CLKCR_BYPASS 0x00000400
#define SDI_CLKCR_WIDBUS_MASK 0x00001800
#define SDI_CLKCR_WIDBUS_1 0x00000000
#define SDI_CLKCR_WIDBUS_4 0x00000800
/* V2 only */
#define SDI_CLKCR_WIDBUS_8 0x00001000
#define SDI_CLKCR_NEDGE 0x00002000
#define SDI_CLKCR_HWFC_EN 0x00004000
#define SDI_CLKCR_CLKDIV_INIT_V1 0x000000C6 /* MCLK/(2*(0xC6+1)) => 505KHz */
#define SDI_CLKCR_CLKDIV_INIT_V2 0x000000FD
/* SDI command register bits */
#define SDI_CMD_CMDINDEX_MASK 0x000000FF
#define SDI_CMD_WAITRESP 0x00000040
#define SDI_CMD_LONGRESP 0x00000080
#define SDI_CMD_WAITINT 0x00000100
#define SDI_CMD_WAITPEND 0x00000200
#define SDI_CMD_CPSMEN 0x00000400
#define SDI_CMD_SDIOSUSPEND 0x00000800
#define SDI_CMD_ENDCMDCOMPL 0x00001000
#define SDI_CMD_NIEN 0x00002000
#define SDI_CMD_CE_ATACMD 0x00004000
#define SDI_CMD_CBOOTMODEEN 0x00008000
#define SDI_DTIMER_DEFAULT 0xFFFF0000
/* SDI Status register bits */
#define SDI_STA_CCRCFAIL 0x00000001
#define SDI_STA_DCRCFAIL 0x00000002
#define SDI_STA_CTIMEOUT 0x00000004
#define SDI_STA_DTIMEOUT 0x00000008
#define SDI_STA_TXUNDERR 0x00000010
#define SDI_STA_RXOVERR 0x00000020
#define SDI_STA_CMDREND 0x00000040
#define SDI_STA_CMDSENT 0x00000080
#define SDI_STA_DATAEND 0x00000100
#define SDI_STA_STBITERR 0x00000200
#define SDI_STA_DBCKEND 0x00000400
#define SDI_STA_CMDACT 0x00000800
#define SDI_STA_TXACT 0x00001000
#define SDI_STA_RXACT 0x00002000
#define SDI_STA_TXFIFOBW 0x00004000
#define SDI_STA_RXFIFOBR 0x00008000
#define SDI_STA_TXFIFOF 0x00010000
#define SDI_STA_RXFIFOF 0x00020000
#define SDI_STA_TXFIFOE 0x00040000
#define SDI_STA_RXFIFOE 0x00080000
#define SDI_STA_TXDAVL 0x00100000
#define SDI_STA_RXDAVL 0x00200000
#define SDI_STA_SDIOIT 0x00400000
#define SDI_STA_CEATAEND 0x00800000
#define SDI_STA_CARDBUSY 0x01000000
#define SDI_STA_BOOTMODE 0x02000000
#define SDI_STA_BOOTACKERR 0x04000000
#define SDI_STA_BOOTACKTIMEOUT 0x08000000
#define SDI_STA_RSTNEND 0x10000000
/* SDI Interrupt Clear register bits */
#define SDI_ICR_MASK 0x1DC007FF
#define SDI_ICR_CCRCFAILC 0x00000001
#define SDI_ICR_DCRCFAILC 0x00000002
#define SDI_ICR_CTIMEOUTC 0x00000004
#define SDI_ICR_DTIMEOUTC 0x00000008
#define SDI_ICR_TXUNDERRC 0x00000010
#define SDI_ICR_RXOVERRC 0x00000020
#define SDI_ICR_CMDRENDC 0x00000040
#define SDI_ICR_CMDSENTC 0x00000080
#define SDI_ICR_DATAENDC 0x00000100
#define SDI_ICR_STBITERRC 0x00000200
#define SDI_ICR_DBCKENDC 0x00000400
#define SDI_ICR_SDIOITC 0x00400000
#define SDI_ICR_CEATAENDC 0x00800000
#define SDI_ICR_BUSYENDC 0x01000000
#define SDI_ICR_BOOTACKERRC 0x04000000
#define SDI_ICR_BOOTACKTIMEOUTC 0x08000000
#define SDI_ICR_RSTNENDC 0x10000000
#define SDI_MASK0_MASK 0x1FFFFFFF
/* SDI Data control register bits */
#define SDI_DCTRL_DTEN 0x00000001
#define SDI_DCTRL_DTDIR_IN 0x00000002
#define SDI_DCTRL_DTMODE_STREAM 0x00000004
#define SDI_DCTRL_DMAEN 0x00000008
#define SDI_DCTRL_DBLKSIZE_MASK 0x000000F0
#define SDI_DCTRL_RWSTART 0x00000100
#define SDI_DCTRL_RWSTOP 0x00000200
#define SDI_DCTRL_RWMOD 0x00000200
#define SDI_DCTRL_SDIOEN 0x00000800
#define SDI_DCTRL_DMAREQCTL 0x00001000
#define SDI_DCTRL_DBOOTMODEEN 0x00002000
#define SDI_DCTRL_BUSYMODE 0x00004000
#define SDI_DCTRL_DDR_MODE 0x00008000
#define SDI_DCTRL_DBLOCKSIZE_V2_MASK 0x7fff0000
#define SDI_DCTRL_DBLOCKSIZE_V2_SHIFT 16
#define SDI_FIFO_BURST_SIZE 8
struct sdi_registers {
u32 power; /* 0x00*/
u32 clock; /* 0x04*/
u32 argument; /* 0x08*/
u32 command; /* 0x0c*/
u32 respcommand; /* 0x10*/
u32 response0; /* 0x14*/
u32 response1; /* 0x18*/
u32 response2; /* 0x1c*/
u32 response3; /* 0x20*/
u32 datatimer; /* 0x24*/
u32 datalength; /* 0x28*/
u32 datactrl; /* 0x2c*/
u32 datacount; /* 0x30*/
u32 status; /* 0x34*/
u32 status_clear; /* 0x38*/
u32 mask0; /* 0x3c*/
u32 mask1; /* 0x40*/
u32 card_select; /* 0x44*/
u32 fifo_count; /* 0x48*/
u32 padding1[(0x80-0x4C)>>2];
u32 fifo; /* 0x80*/
u32 padding2[(0xFE0-0x84)>>2];
u32 periph_id0; /* 0xFE0 mmc Peripheral Identifcation Register*/
u32 periph_id1; /* 0xFE4*/
u32 periph_id2; /* 0xFE8*/
u32 periph_id3; /* 0xFEC*/
u32 pcell_id0; /* 0xFF0*/
u32 pcell_id1; /* 0xFF4*/
u32 pcell_id2; /* 0xFF8*/
u32 pcell_id3; /* 0xFFC*/
};
struct pl180_mmc_host {
struct sdi_registers *base;
char name[32];
unsigned int b_max;
unsigned int voltages;
unsigned int caps;
unsigned int clock_in;
unsigned int clock_min;
unsigned int clock_max;
unsigned int clkdiv_init;
unsigned int pwr_init;
int version2;
};
int arm_pl180_mmci_init(struct pl180_mmc_host *);
#endif
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