OpenWrt – Rev 3
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/* Copyright Statement:
*
* This software/firmware and related documentation ("MediaTek Software") are
* protected under relevant copyright laws. The information contained herein
* is confidential and proprietary to MediaTek Inc. and/or its licensors.
* Without the prior written permission of MediaTek inc. and/or its licensors,
* any reproduction, modification, use or disclosure of MediaTek Software,
* and information contained herein, in whole or in part, shall be strictly prohibited.
*/
/* MediaTek Inc. (C) 2010. All rights reserved.
*
* BY OPENING THIS FILE, RECEIVER HEREBY UNEQUIVOCALLY ACKNOWLEDGES AND AGREES
* THAT THE SOFTWARE/FIRMWARE AND ITS DOCUMENTATIONS ("MEDIATEK SOFTWARE")
* RECEIVED FROM MEDIATEK AND/OR ITS REPRESENTATIVES ARE PROVIDED TO RECEIVER ON
* AN "AS-IS" BASIS ONLY. MEDIATEK EXPRESSLY DISCLAIMS ANY AND ALL WARRANTIES,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT.
* NEITHER DOES MEDIATEK PROVIDE ANY WARRANTY WHATSOEVER WITH RESPECT TO THE
* SOFTWARE OF ANY THIRD PARTY WHICH MAY BE USED BY, INCORPORATED IN, OR
* SUPPLIED WITH THE MEDIATEK SOFTWARE, AND RECEIVER AGREES TO LOOK ONLY TO SUCH
* THIRD PARTY FOR ANY WARRANTY CLAIM RELATING THERETO. RECEIVER EXPRESSLY ACKNOWLEDGES
* THAT IT IS RECEIVER'S SOLE RESPONSIBILITY TO OBTAIN FROM ANY THIRD PARTY ALL PROPER LICENSES
* CONTAINED IN MEDIATEK SOFTWARE. MEDIATEK SHALL ALSO NOT BE RESPONSIBLE FOR ANY MEDIATEK
* SOFTWARE RELEASES MADE TO RECEIVER'S SPECIFICATION OR TO CONFORM TO A PARTICULAR
* STANDARD OR OPEN FORUM. RECEIVER'S SOLE AND EXCLUSIVE REMEDY AND MEDIATEK'S ENTIRE AND
* CUMULATIVE LIABILITY WITH RESPECT TO THE MEDIATEK SOFTWARE RELEASED HEREUNDER WILL BE,
* AT MEDIATEK'S OPTION, TO REVISE OR REPLACE THE MEDIATEK SOFTWARE AT ISSUE,
* OR REFUND ANY SOFTWARE LICENSE FEES OR SERVICE CHARGE PAID BY RECEIVER TO
* MEDIATEK FOR SUCH MEDIATEK SOFTWARE AT ISSUE.
*
* The following software/firmware and/or related documentation ("MediaTek Software")
* have been modified by MediaTek Inc. All revisions are subject to any receiver's
* applicable license agreements with MediaTek Inc.
*/
#ifndef MT6575_SD_H
#define MT6575_SD_H
#include <linux/bitops.h>
#include <linux/interrupt.h>
#include <linux/mmc/host.h>
// #include <mach/mt6575_reg_base.h> /* --- by chhung */
/*--------------------------------------------------------------------------*/
/* Common Macro */
/*--------------------------------------------------------------------------*/
#define REG_ADDR(x) ((volatile u32*)(base + OFFSET_##x))
/*--------------------------------------------------------------------------*/
/* Common Definition */
/*--------------------------------------------------------------------------*/
#define MSDC_FIFO_SZ (128)
#define MSDC_FIFO_THD (64) // (128)
#define MSDC_NUM (4)
#define MSDC_MS (0)
#define MSDC_SDMMC (1)
#define MSDC_MODE_UNKNOWN (0)
#define MSDC_MODE_PIO (1)
#define MSDC_MODE_DMA_BASIC (2)
#define MSDC_MODE_DMA_DESC (3)
#define MSDC_MODE_DMA_ENHANCED (4)
#define MSDC_MODE_MMC_STREAM (5)
#define MSDC_BUS_1BITS (0)
#define MSDC_BUS_4BITS (1)
#define MSDC_BUS_8BITS (2)
#define MSDC_BRUST_8B (3)
#define MSDC_BRUST_16B (4)
#define MSDC_BRUST_32B (5)
#define MSDC_BRUST_64B (6)
#define MSDC_PIN_PULL_NONE (0)
#define MSDC_PIN_PULL_DOWN (1)
#define MSDC_PIN_PULL_UP (2)
#define MSDC_PIN_KEEP (3)
#define MSDC_MAX_SCLK (48000000) /* +/- by chhung */
#define MSDC_MIN_SCLK (260000)
#define MSDC_AUTOCMD12 (0x0001)
#define MSDC_AUTOCMD23 (0x0002)
#define MSDC_AUTOCMD19 (0x0003)
#define MSDC_EMMC_BOOTMODE0 (0) /* Pull low CMD mode */
#define MSDC_EMMC_BOOTMODE1 (1) /* Reset CMD mode */
enum {
RESP_NONE = 0,
RESP_R1,
RESP_R2,
RESP_R3,
RESP_R4,
RESP_R5,
RESP_R6,
RESP_R7,
RESP_R1B
};
/*--------------------------------------------------------------------------*/
/* Register Offset */
/*--------------------------------------------------------------------------*/
#define OFFSET_MSDC_CFG (0x0)
#define OFFSET_MSDC_IOCON (0x04)
#define OFFSET_MSDC_PS (0x08)
#define OFFSET_MSDC_INT (0x0c)
#define OFFSET_MSDC_INTEN (0x10)
#define OFFSET_MSDC_FIFOCS (0x14)
#define OFFSET_MSDC_TXDATA (0x18)
#define OFFSET_MSDC_RXDATA (0x1c)
#define OFFSET_SDC_CFG (0x30)
#define OFFSET_SDC_CMD (0x34)
#define OFFSET_SDC_ARG (0x38)
#define OFFSET_SDC_STS (0x3c)
#define OFFSET_SDC_RESP0 (0x40)
#define OFFSET_SDC_RESP1 (0x44)
#define OFFSET_SDC_RESP2 (0x48)
#define OFFSET_SDC_RESP3 (0x4c)
#define OFFSET_SDC_BLK_NUM (0x50)
#define OFFSET_SDC_CSTS (0x58)
#define OFFSET_SDC_CSTS_EN (0x5c)
#define OFFSET_SDC_DCRC_STS (0x60)
#define OFFSET_EMMC_CFG0 (0x70)
#define OFFSET_EMMC_CFG1 (0x74)
#define OFFSET_EMMC_STS (0x78)
#define OFFSET_EMMC_IOCON (0x7c)
#define OFFSET_SDC_ACMD_RESP (0x80)
#define OFFSET_SDC_ACMD19_TRG (0x84)
#define OFFSET_SDC_ACMD19_STS (0x88)
#define OFFSET_MSDC_DMA_SA (0x90)
#define OFFSET_MSDC_DMA_CA (0x94)
#define OFFSET_MSDC_DMA_CTRL (0x98)
#define OFFSET_MSDC_DMA_CFG (0x9c)
#define OFFSET_MSDC_DBG_SEL (0xa0)
#define OFFSET_MSDC_DBG_OUT (0xa4)
#define OFFSET_MSDC_PATCH_BIT (0xb0)
#define OFFSET_MSDC_PATCH_BIT1 (0xb4)
#define OFFSET_MSDC_PAD_CTL0 (0xe0)
#define OFFSET_MSDC_PAD_CTL1 (0xe4)
#define OFFSET_MSDC_PAD_CTL2 (0xe8)
#define OFFSET_MSDC_PAD_TUNE (0xec)
#define OFFSET_MSDC_DAT_RDDLY0 (0xf0)
#define OFFSET_MSDC_DAT_RDDLY1 (0xf4)
#define OFFSET_MSDC_HW_DBG (0xf8)
#define OFFSET_MSDC_VERSION (0x100)
#define OFFSET_MSDC_ECO_VER (0x104)
/*--------------------------------------------------------------------------*/
/* Register Address */
/*--------------------------------------------------------------------------*/
/* common register */
#define MSDC_CFG REG_ADDR(MSDC_CFG)
#define MSDC_IOCON REG_ADDR(MSDC_IOCON)
#define MSDC_PS REG_ADDR(MSDC_PS)
#define MSDC_INT REG_ADDR(MSDC_INT)
#define MSDC_INTEN REG_ADDR(MSDC_INTEN)
#define MSDC_FIFOCS REG_ADDR(MSDC_FIFOCS)
#define MSDC_TXDATA REG_ADDR(MSDC_TXDATA)
#define MSDC_RXDATA REG_ADDR(MSDC_RXDATA)
#define MSDC_PATCH_BIT0 REG_ADDR(MSDC_PATCH_BIT)
/* sdmmc register */
#define SDC_CFG REG_ADDR(SDC_CFG)
#define SDC_CMD REG_ADDR(SDC_CMD)
#define SDC_ARG REG_ADDR(SDC_ARG)
#define SDC_STS REG_ADDR(SDC_STS)
#define SDC_RESP0 REG_ADDR(SDC_RESP0)
#define SDC_RESP1 REG_ADDR(SDC_RESP1)
#define SDC_RESP2 REG_ADDR(SDC_RESP2)
#define SDC_RESP3 REG_ADDR(SDC_RESP3)
#define SDC_BLK_NUM REG_ADDR(SDC_BLK_NUM)
#define SDC_CSTS REG_ADDR(SDC_CSTS)
#define SDC_CSTS_EN REG_ADDR(SDC_CSTS_EN)
#define SDC_DCRC_STS REG_ADDR(SDC_DCRC_STS)
/* emmc register*/
#define EMMC_CFG0 REG_ADDR(EMMC_CFG0)
#define EMMC_CFG1 REG_ADDR(EMMC_CFG1)
#define EMMC_STS REG_ADDR(EMMC_STS)
#define EMMC_IOCON REG_ADDR(EMMC_IOCON)
/* auto command register */
#define SDC_ACMD_RESP REG_ADDR(SDC_ACMD_RESP)
#define SDC_ACMD19_TRG REG_ADDR(SDC_ACMD19_TRG)
#define SDC_ACMD19_STS REG_ADDR(SDC_ACMD19_STS)
/* dma register */
#define MSDC_DMA_SA REG_ADDR(MSDC_DMA_SA)
#define MSDC_DMA_CA REG_ADDR(MSDC_DMA_CA)
#define MSDC_DMA_CTRL REG_ADDR(MSDC_DMA_CTRL)
#define MSDC_DMA_CFG REG_ADDR(MSDC_DMA_CFG)
/* pad ctrl register */
#define MSDC_PAD_CTL0 REG_ADDR(MSDC_PAD_CTL0)
#define MSDC_PAD_CTL1 REG_ADDR(MSDC_PAD_CTL1)
#define MSDC_PAD_CTL2 REG_ADDR(MSDC_PAD_CTL2)
/* data read delay */
#define MSDC_DAT_RDDLY0 REG_ADDR(MSDC_DAT_RDDLY0)
#define MSDC_DAT_RDDLY1 REG_ADDR(MSDC_DAT_RDDLY1)
/* debug register */
#define MSDC_DBG_SEL REG_ADDR(MSDC_DBG_SEL)
#define MSDC_DBG_OUT REG_ADDR(MSDC_DBG_OUT)
/* misc register */
#define MSDC_PATCH_BIT REG_ADDR(MSDC_PATCH_BIT)
#define MSDC_PATCH_BIT1 REG_ADDR(MSDC_PATCH_BIT1)
#define MSDC_PAD_TUNE REG_ADDR(MSDC_PAD_TUNE)
#define MSDC_HW_DBG REG_ADDR(MSDC_HW_DBG)
#define MSDC_VERSION REG_ADDR(MSDC_VERSION)
#define MSDC_ECO_VER REG_ADDR(MSDC_ECO_VER) /* ECO Version */
/*--------------------------------------------------------------------------*/
/* Register Mask */
/*--------------------------------------------------------------------------*/
/* MSDC_CFG mask */
#define MSDC_CFG_MODE (0x1 << 0) /* RW */
#define MSDC_CFG_CKPDN (0x1 << 1) /* RW */
#define MSDC_CFG_RST (0x1 << 2) /* RW */
#define MSDC_CFG_PIO (0x1 << 3) /* RW */
#define MSDC_CFG_CKDRVEN (0x1 << 4) /* RW */
#define MSDC_CFG_BV18SDT (0x1 << 5) /* RW */
#define MSDC_CFG_BV18PSS (0x1 << 6) /* R */
#define MSDC_CFG_CKSTB (0x1 << 7) /* R */
#define MSDC_CFG_CKDIV (0xff << 8) /* RW */
#define MSDC_CFG_CKMOD (0x3 << 16) /* RW */
/* MSDC_IOCON mask */
#define MSDC_IOCON_SDR104CKS (0x1 << 0) /* RW */
#define MSDC_IOCON_RSPL (0x1 << 1) /* RW */
#define MSDC_IOCON_DSPL (0x1 << 2) /* RW */
#define MSDC_IOCON_DDLSEL (0x1 << 3) /* RW */
#define MSDC_IOCON_DDR50CKD (0x1 << 4) /* RW */
#define MSDC_IOCON_DSPLSEL (0x1 << 5) /* RW */
#define MSDC_IOCON_D0SPL (0x1 << 16) /* RW */
#define MSDC_IOCON_D1SPL (0x1 << 17) /* RW */
#define MSDC_IOCON_D2SPL (0x1 << 18) /* RW */
#define MSDC_IOCON_D3SPL (0x1 << 19) /* RW */
#define MSDC_IOCON_D4SPL (0x1 << 20) /* RW */
#define MSDC_IOCON_D5SPL (0x1 << 21) /* RW */
#define MSDC_IOCON_D6SPL (0x1 << 22) /* RW */
#define MSDC_IOCON_D7SPL (0x1 << 23) /* RW */
#define MSDC_IOCON_RISCSZ (0x3 << 24) /* RW */
/* MSDC_PS mask */
#define MSDC_PS_CDEN (0x1 << 0) /* RW */
#define MSDC_PS_CDSTS (0x1 << 1) /* R */
#define MSDC_PS_CDDEBOUNCE (0xf << 12) /* RW */
#define MSDC_PS_DAT (0xff << 16) /* R */
#define MSDC_PS_CMD (0x1 << 24) /* R */
#define MSDC_PS_WP (0x1UL<< 31) /* R */
/* MSDC_INT mask */
#define MSDC_INT_MMCIRQ (0x1 << 0) /* W1C */
#define MSDC_INT_CDSC (0x1 << 1) /* W1C */
#define MSDC_INT_ACMDRDY (0x1 << 3) /* W1C */
#define MSDC_INT_ACMDTMO (0x1 << 4) /* W1C */
#define MSDC_INT_ACMDCRCERR (0x1 << 5) /* W1C */
#define MSDC_INT_DMAQ_EMPTY (0x1 << 6) /* W1C */
#define MSDC_INT_SDIOIRQ (0x1 << 7) /* W1C */
#define MSDC_INT_CMDRDY (0x1 << 8) /* W1C */
#define MSDC_INT_CMDTMO (0x1 << 9) /* W1C */
#define MSDC_INT_RSPCRCERR (0x1 << 10) /* W1C */
#define MSDC_INT_CSTA (0x1 << 11) /* R */
#define MSDC_INT_XFER_COMPL (0x1 << 12) /* W1C */
#define MSDC_INT_DXFER_DONE (0x1 << 13) /* W1C */
#define MSDC_INT_DATTMO (0x1 << 14) /* W1C */
#define MSDC_INT_DATCRCERR (0x1 << 15) /* W1C */
#define MSDC_INT_ACMD19_DONE (0x1 << 16) /* W1C */
/* MSDC_INTEN mask */
#define MSDC_INTEN_MMCIRQ (0x1 << 0) /* RW */
#define MSDC_INTEN_CDSC (0x1 << 1) /* RW */
#define MSDC_INTEN_ACMDRDY (0x1 << 3) /* RW */
#define MSDC_INTEN_ACMDTMO (0x1 << 4) /* RW */
#define MSDC_INTEN_ACMDCRCERR (0x1 << 5) /* RW */
#define MSDC_INTEN_DMAQ_EMPTY (0x1 << 6) /* RW */
#define MSDC_INTEN_SDIOIRQ (0x1 << 7) /* RW */
#define MSDC_INTEN_CMDRDY (0x1 << 8) /* RW */
#define MSDC_INTEN_CMDTMO (0x1 << 9) /* RW */
#define MSDC_INTEN_RSPCRCERR (0x1 << 10) /* RW */
#define MSDC_INTEN_CSTA (0x1 << 11) /* RW */
#define MSDC_INTEN_XFER_COMPL (0x1 << 12) /* RW */
#define MSDC_INTEN_DXFER_DONE (0x1 << 13) /* RW */
#define MSDC_INTEN_DATTMO (0x1 << 14) /* RW */
#define MSDC_INTEN_DATCRCERR (0x1 << 15) /* RW */
#define MSDC_INTEN_ACMD19_DONE (0x1 << 16) /* RW */
/* MSDC_FIFOCS mask */
#define MSDC_FIFOCS_RXCNT (0xff << 0) /* R */
#define MSDC_FIFOCS_TXCNT (0xff << 16) /* R */
#define MSDC_FIFOCS_CLR (0x1UL<< 31) /* RW */
/* SDC_CFG mask */
#define SDC_CFG_SDIOINTWKUP (0x1 << 0) /* RW */
#define SDC_CFG_INSWKUP (0x1 << 1) /* RW */
#define SDC_CFG_BUSWIDTH (0x3 << 16) /* RW */
#define SDC_CFG_SDIO (0x1 << 19) /* RW */
#define SDC_CFG_SDIOIDE (0x1 << 20) /* RW */
#define SDC_CFG_INTATGAP (0x1 << 21) /* RW */
#define SDC_CFG_DTOC (0xffUL << 24) /* RW */
/* SDC_CMD mask */
#define SDC_CMD_OPC (0x3f << 0) /* RW */
#define SDC_CMD_BRK (0x1 << 6) /* RW */
#define SDC_CMD_RSPTYP (0x7 << 7) /* RW */
#define SDC_CMD_DTYP (0x3 << 11) /* RW */
#define SDC_CMD_DTYP (0x3 << 11) /* RW */
#define SDC_CMD_RW (0x1 << 13) /* RW */
#define SDC_CMD_STOP (0x1 << 14) /* RW */
#define SDC_CMD_GOIRQ (0x1 << 15) /* RW */
#define SDC_CMD_BLKLEN (0xfff<< 16) /* RW */
#define SDC_CMD_AUTOCMD (0x3 << 28) /* RW */
#define SDC_CMD_VOLSWTH (0x1 << 30) /* RW */
/* SDC_STS mask */
#define SDC_STS_SDCBUSY (0x1 << 0) /* RW */
#define SDC_STS_CMDBUSY (0x1 << 1) /* RW */
#define SDC_STS_SWR_COMPL (0x1 << 31) /* RW */
/* SDC_DCRC_STS mask */
#define SDC_DCRC_STS_NEG (0xf << 8) /* RO */
#define SDC_DCRC_STS_POS (0xff << 0) /* RO */
/* EMMC_CFG0 mask */
#define EMMC_CFG0_BOOTSTART (0x1 << 0) /* W */
#define EMMC_CFG0_BOOTSTOP (0x1 << 1) /* W */
#define EMMC_CFG0_BOOTMODE (0x1 << 2) /* RW */
#define EMMC_CFG0_BOOTACKDIS (0x1 << 3) /* RW */
#define EMMC_CFG0_BOOTWDLY (0x7 << 12) /* RW */
#define EMMC_CFG0_BOOTSUPP (0x1 << 15) /* RW */
/* EMMC_CFG1 mask */
#define EMMC_CFG1_BOOTDATTMC (0xfffff << 0) /* RW */
#define EMMC_CFG1_BOOTACKTMC (0xfffUL << 20) /* RW */
/* EMMC_STS mask */
#define EMMC_STS_BOOTCRCERR (0x1 << 0) /* W1C */
#define EMMC_STS_BOOTACKERR (0x1 << 1) /* W1C */
#define EMMC_STS_BOOTDATTMO (0x1 << 2) /* W1C */
#define EMMC_STS_BOOTACKTMO (0x1 << 3) /* W1C */
#define EMMC_STS_BOOTUPSTATE (0x1 << 4) /* R */
#define EMMC_STS_BOOTACKRCV (0x1 << 5) /* W1C */
#define EMMC_STS_BOOTDATRCV (0x1 << 6) /* R */
/* EMMC_IOCON mask */
#define EMMC_IOCON_BOOTRST (0x1 << 0) /* RW */
/* SDC_ACMD19_TRG mask */
#define SDC_ACMD19_TRG_TUNESEL (0xf << 0) /* RW */
/* MSDC_DMA_CTRL mask */
#define MSDC_DMA_CTRL_START (0x1 << 0) /* W */
#define MSDC_DMA_CTRL_STOP (0x1 << 1) /* W */
#define MSDC_DMA_CTRL_RESUME (0x1 << 2) /* W */
#define MSDC_DMA_CTRL_MODE (0x1 << 8) /* RW */
#define MSDC_DMA_CTRL_LASTBUF (0x1 << 10) /* RW */
#define MSDC_DMA_CTRL_BRUSTSZ (0x7 << 12) /* RW */
#define MSDC_DMA_CTRL_XFERSZ (0xffffUL << 16)/* RW */
/* MSDC_DMA_CFG mask */
#define MSDC_DMA_CFG_STS (0x1 << 0) /* R */
#define MSDC_DMA_CFG_DECSEN (0x1 << 1) /* RW */
#define MSDC_DMA_CFG_BDCSERR (0x1 << 4) /* R */
#define MSDC_DMA_CFG_GPDCSERR (0x1 << 5) /* R */
/* MSDC_PATCH_BIT mask */
#define MSDC_PATCH_BIT_WFLSMODE (0x1 << 0) /* RW */
#define MSDC_PATCH_BIT_ODDSUPP (0x1 << 1) /* RW */
#define MSDC_PATCH_BIT_CKGEN_CK (0x1 << 6) /* E2: Fixed to 1 */
#define MSDC_PATCH_BIT_IODSSEL (0x1 << 16) /* RW */
#define MSDC_PATCH_BIT_IOINTSEL (0x1 << 17) /* RW */
#define MSDC_PATCH_BIT_BUSYDLY (0xf << 18) /* RW */
#define MSDC_PATCH_BIT_WDOD (0xf << 22) /* RW */
#define MSDC_PATCH_BIT_IDRTSEL (0x1 << 26) /* RW */
#define MSDC_PATCH_BIT_CMDFSEL (0x1 << 27) /* RW */
#define MSDC_PATCH_BIT_INTDLSEL (0x1 << 28) /* RW */
#define MSDC_PATCH_BIT_SPCPUSH (0x1 << 29) /* RW */
#define MSDC_PATCH_BIT_DECRCTMO (0x1 << 30) /* RW */
/* MSDC_PATCH_BIT1 mask */
#define MSDC_PATCH_BIT1_WRDAT_CRCS (0x7 << 3)
#define MSDC_PATCH_BIT1_CMD_RSP (0x7 << 0)
/* MSDC_PAD_CTL0 mask */
#define MSDC_PAD_CTL0_CLKDRVN (0x7 << 0) /* RW */
#define MSDC_PAD_CTL0_CLKDRVP (0x7 << 4) /* RW */
#define MSDC_PAD_CTL0_CLKSR (0x1 << 8) /* RW */
#define MSDC_PAD_CTL0_CLKPD (0x1 << 16) /* RW */
#define MSDC_PAD_CTL0_CLKPU (0x1 << 17) /* RW */
#define MSDC_PAD_CTL0_CLKSMT (0x1 << 18) /* RW */
#define MSDC_PAD_CTL0_CLKIES (0x1 << 19) /* RW */
#define MSDC_PAD_CTL0_CLKTDSEL (0xf << 20) /* RW */
#define MSDC_PAD_CTL0_CLKRDSEL (0xffUL<< 24) /* RW */
/* MSDC_PAD_CTL1 mask */
#define MSDC_PAD_CTL1_CMDDRVN (0x7 << 0) /* RW */
#define MSDC_PAD_CTL1_CMDDRVP (0x7 << 4) /* RW */
#define MSDC_PAD_CTL1_CMDSR (0x1 << 8) /* RW */
#define MSDC_PAD_CTL1_CMDPD (0x1 << 16) /* RW */
#define MSDC_PAD_CTL1_CMDPU (0x1 << 17) /* RW */
#define MSDC_PAD_CTL1_CMDSMT (0x1 << 18) /* RW */
#define MSDC_PAD_CTL1_CMDIES (0x1 << 19) /* RW */
#define MSDC_PAD_CTL1_CMDTDSEL (0xf << 20) /* RW */
#define MSDC_PAD_CTL1_CMDRDSEL (0xffUL<< 24) /* RW */
/* MSDC_PAD_CTL2 mask */
#define MSDC_PAD_CTL2_DATDRVN (0x7 << 0) /* RW */
#define MSDC_PAD_CTL2_DATDRVP (0x7 << 4) /* RW */
#define MSDC_PAD_CTL2_DATSR (0x1 << 8) /* RW */
#define MSDC_PAD_CTL2_DATPD (0x1 << 16) /* RW */
#define MSDC_PAD_CTL2_DATPU (0x1 << 17) /* RW */
#define MSDC_PAD_CTL2_DATIES (0x1 << 19) /* RW */
#define MSDC_PAD_CTL2_DATSMT (0x1 << 18) /* RW */
#define MSDC_PAD_CTL2_DATTDSEL (0xf << 20) /* RW */
#define MSDC_PAD_CTL2_DATRDSEL (0xffUL<< 24) /* RW */
/* MSDC_PAD_TUNE mask */
#define MSDC_PAD_TUNE_DATWRDLY (0x1F << 0) /* RW */
#define MSDC_PAD_TUNE_DATRRDLY (0x1F << 8) /* RW */
#define MSDC_PAD_TUNE_CMDRDLY (0x1F << 16) /* RW */
#define MSDC_PAD_TUNE_CMDRRDLY (0x1FUL << 22) /* RW */
#define MSDC_PAD_TUNE_CLKTXDLY (0x1FUL << 27) /* RW */
/* MSDC_DAT_RDDLY0/1 mask */
#define MSDC_DAT_RDDLY0_D0 (0x1F << 0) /* RW */
#define MSDC_DAT_RDDLY0_D1 (0x1F << 8) /* RW */
#define MSDC_DAT_RDDLY0_D2 (0x1F << 16) /* RW */
#define MSDC_DAT_RDDLY0_D3 (0x1F << 24) /* RW */
#define MSDC_DAT_RDDLY1_D4 (0x1F << 0) /* RW */
#define MSDC_DAT_RDDLY1_D5 (0x1F << 8) /* RW */
#define MSDC_DAT_RDDLY1_D6 (0x1F << 16) /* RW */
#define MSDC_DAT_RDDLY1_D7 (0x1F << 24) /* RW */
#define MSDC_CKGEN_MSDC_DLY_SEL (0x1F<<10)
#define MSDC_INT_DAT_LATCH_CK_SEL (0x7<<7)
#define MSDC_CKGEN_MSDC_CK_SEL (0x1<<6)
#define CARD_READY_FOR_DATA (1<<8)
#define CARD_CURRENT_STATE(x) ((x&0x00001E00)>>9)
/*--------------------------------------------------------------------------*/
/* Descriptor Structure */
/*--------------------------------------------------------------------------*/
typedef struct {
u32 hwo:1; /* could be changed by hw */
u32 bdp:1;
u32 rsv0:6;
u32 chksum:8;
u32 intr:1;
u32 rsv1:15;
void *next;
void *ptr;
u32 buflen:16;
u32 extlen:8;
u32 rsv2:8;
u32 arg;
u32 blknum;
u32 cmd;
} gpd_t;
typedef struct {
u32 eol:1;
u32 rsv0:7;
u32 chksum:8;
u32 rsv1:1;
u32 blkpad:1;
u32 dwpad:1;
u32 rsv2:13;
void *next;
void *ptr;
u32 buflen:16;
u32 rsv3:16;
} bd_t;
/*--------------------------------------------------------------------------*/
/* Register Debugging Structure */
/*--------------------------------------------------------------------------*/
typedef struct {
u32 msdc:1;
u32 ckpwn:1;
u32 rst:1;
u32 pio:1;
u32 ckdrven:1;
u32 start18v:1;
u32 pass18v:1;
u32 ckstb:1;
u32 ckdiv:8;
u32 ckmod:2;
u32 pad:14;
} msdc_cfg_reg;
typedef struct {
u32 sdr104cksel:1;
u32 rsmpl:1;
u32 dsmpl:1;
u32 ddlysel:1;
u32 ddr50ckd:1;
u32 dsplsel:1;
u32 pad1:10;
u32 d0spl:1;
u32 d1spl:1;
u32 d2spl:1;
u32 d3spl:1;
u32 d4spl:1;
u32 d5spl:1;
u32 d6spl:1;
u32 d7spl:1;
u32 riscsz:1;
u32 pad2:7;
} msdc_iocon_reg;
typedef struct {
u32 cden:1;
u32 cdsts:1;
u32 pad1:10;
u32 cddebounce:4;
u32 dat:8;
u32 cmd:1;
u32 pad2:6;
u32 wp:1;
} msdc_ps_reg;
typedef struct {
u32 mmcirq:1;
u32 cdsc:1;
u32 pad1:1;
u32 atocmdrdy:1;
u32 atocmdtmo:1;
u32 atocmdcrc:1;
u32 dmaqempty:1;
u32 sdioirq:1;
u32 cmdrdy:1;
u32 cmdtmo:1;
u32 rspcrc:1;
u32 csta:1;
u32 xfercomp:1;
u32 dxferdone:1;
u32 dattmo:1;
u32 datcrc:1;
u32 atocmd19done:1;
u32 pad2:15;
} msdc_int_reg;
typedef struct {
u32 mmcirq:1;
u32 cdsc:1;
u32 pad1:1;
u32 atocmdrdy:1;
u32 atocmdtmo:1;
u32 atocmdcrc:1;
u32 dmaqempty:1;
u32 sdioirq:1;
u32 cmdrdy:1;
u32 cmdtmo:1;
u32 rspcrc:1;
u32 csta:1;
u32 xfercomp:1;
u32 dxferdone:1;
u32 dattmo:1;
u32 datcrc:1;
u32 atocmd19done:1;
u32 pad2:15;
} msdc_inten_reg;
typedef struct {
u32 rxcnt:8;
u32 pad1:8;
u32 txcnt:8;
u32 pad2:7;
u32 clr:1;
} msdc_fifocs_reg;
typedef struct {
u32 val;
} msdc_txdat_reg;
typedef struct {
u32 val;
} msdc_rxdat_reg;
typedef struct {
u32 sdiowkup:1;
u32 inswkup:1;
u32 pad1:14;
u32 buswidth:2;
u32 pad2:1;
u32 sdio:1;
u32 sdioide:1;
u32 intblkgap:1;
u32 pad4:2;
u32 dtoc:8;
} sdc_cfg_reg;
typedef struct {
u32 cmd:6;
u32 brk:1;
u32 rsptyp:3;
u32 pad1:1;
u32 dtype:2;
u32 rw:1;
u32 stop:1;
u32 goirq:1;
u32 blklen:12;
u32 atocmd:2;
u32 volswth:1;
u32 pad2:1;
} sdc_cmd_reg;
typedef struct {
u32 arg;
} sdc_arg_reg;
typedef struct {
u32 sdcbusy:1;
u32 cmdbusy:1;
u32 pad:29;
u32 swrcmpl:1;
} sdc_sts_reg;
typedef struct {
u32 val;
} sdc_resp0_reg;
typedef struct {
u32 val;
} sdc_resp1_reg;
typedef struct {
u32 val;
} sdc_resp2_reg;
typedef struct {
u32 val;
} sdc_resp3_reg;
typedef struct {
u32 num;
} sdc_blknum_reg;
typedef struct {
u32 sts;
} sdc_csts_reg;
typedef struct {
u32 sts;
} sdc_cstsen_reg;
typedef struct {
u32 datcrcsts:8;
u32 ddrcrcsts:4;
u32 pad:20;
} sdc_datcrcsts_reg;
typedef struct {
u32 bootstart:1;
u32 bootstop:1;
u32 bootmode:1;
u32 pad1:9;
u32 bootwaidly:3;
u32 bootsupp:1;
u32 pad2:16;
} emmc_cfg0_reg;
typedef struct {
u32 bootcrctmc:16;
u32 pad:4;
u32 bootacktmc:12;
} emmc_cfg1_reg;
typedef struct {
u32 bootcrcerr:1;
u32 bootackerr:1;
u32 bootdattmo:1;
u32 bootacktmo:1;
u32 bootupstate:1;
u32 bootackrcv:1;
u32 bootdatrcv:1;
u32 pad:25;
} emmc_sts_reg;
typedef struct {
u32 bootrst:1;
u32 pad:31;
} emmc_iocon_reg;
typedef struct {
u32 val;
} msdc_acmd_resp_reg;
typedef struct {
u32 tunesel:4;
u32 pad:28;
} msdc_acmd19_trg_reg;
typedef struct {
u32 val;
} msdc_acmd19_sts_reg;
typedef struct {
u32 addr;
} msdc_dma_sa_reg;
typedef struct {
u32 addr;
} msdc_dma_ca_reg;
typedef struct {
u32 start:1;
u32 stop:1;
u32 resume:1;
u32 pad1:5;
u32 mode:1;
u32 pad2:1;
u32 lastbuf:1;
u32 pad3:1;
u32 brustsz:3;
u32 pad4:1;
u32 xfersz:16;
} msdc_dma_ctrl_reg;
typedef struct {
u32 status:1;
u32 decsen:1;
u32 pad1:2;
u32 bdcsen:1;
u32 gpdcsen:1;
u32 pad2:26;
} msdc_dma_cfg_reg;
typedef struct {
u32 sel:16;
u32 pad2:16;
} msdc_dbg_sel_reg;
typedef struct {
u32 val;
} msdc_dbg_out_reg;
typedef struct {
u32 clkdrvn:3;
u32 rsv0:1;
u32 clkdrvp:3;
u32 rsv1:1;
u32 clksr:1;
u32 rsv2:7;
u32 clkpd:1;
u32 clkpu:1;
u32 clksmt:1;
u32 clkies:1;
u32 clktdsel:4;
u32 clkrdsel:8;
} msdc_pad_ctl0_reg;
typedef struct {
u32 cmddrvn:3;
u32 rsv0:1;
u32 cmddrvp:3;
u32 rsv1:1;
u32 cmdsr:1;
u32 rsv2:7;
u32 cmdpd:1;
u32 cmdpu:1;
u32 cmdsmt:1;
u32 cmdies:1;
u32 cmdtdsel:4;
u32 cmdrdsel:8;
} msdc_pad_ctl1_reg;
typedef struct {
u32 datdrvn:3;
u32 rsv0:1;
u32 datdrvp:3;
u32 rsv1:1;
u32 datsr:1;
u32 rsv2:7;
u32 datpd:1;
u32 datpu:1;
u32 datsmt:1;
u32 daties:1;
u32 dattdsel:4;
u32 datrdsel:8;
} msdc_pad_ctl2_reg;
typedef struct {
u32 wrrxdly:3;
u32 pad1:5;
u32 rdrxdly:8;
u32 pad2:16;
} msdc_pad_tune_reg;
typedef struct {
u32 dat0:5;
u32 rsv0:3;
u32 dat1:5;
u32 rsv1:3;
u32 dat2:5;
u32 rsv2:3;
u32 dat3:5;
u32 rsv3:3;
} msdc_dat_rddly0;
typedef struct {
u32 dat4:5;
u32 rsv4:3;
u32 dat5:5;
u32 rsv5:3;
u32 dat6:5;
u32 rsv6:3;
u32 dat7:5;
u32 rsv7:3;
} msdc_dat_rddly1;
typedef struct {
u32 dbg0sel:8;
u32 dbg1sel:6;
u32 pad1:2;
u32 dbg2sel:6;
u32 pad2:2;
u32 dbg3sel:6;
u32 pad3:2;
} msdc_hw_dbg_reg;
typedef struct {
u32 val;
} msdc_version_reg;
typedef struct {
u32 val;
} msdc_eco_ver_reg;
struct msdc_regs {
msdc_cfg_reg msdc_cfg; /* base+0x00h */
msdc_iocon_reg msdc_iocon; /* base+0x04h */
msdc_ps_reg msdc_ps; /* base+0x08h */
msdc_int_reg msdc_int; /* base+0x0ch */
msdc_inten_reg msdc_inten; /* base+0x10h */
msdc_fifocs_reg msdc_fifocs; /* base+0x14h */
msdc_txdat_reg msdc_txdat; /* base+0x18h */
msdc_rxdat_reg msdc_rxdat; /* base+0x1ch */
u32 rsv1[4];
sdc_cfg_reg sdc_cfg; /* base+0x30h */
sdc_cmd_reg sdc_cmd; /* base+0x34h */
sdc_arg_reg sdc_arg; /* base+0x38h */
sdc_sts_reg sdc_sts; /* base+0x3ch */
sdc_resp0_reg sdc_resp0; /* base+0x40h */
sdc_resp1_reg sdc_resp1; /* base+0x44h */
sdc_resp2_reg sdc_resp2; /* base+0x48h */
sdc_resp3_reg sdc_resp3; /* base+0x4ch */
sdc_blknum_reg sdc_blknum; /* base+0x50h */
u32 rsv2[1];
sdc_csts_reg sdc_csts; /* base+0x58h */
sdc_cstsen_reg sdc_cstsen; /* base+0x5ch */
sdc_datcrcsts_reg sdc_dcrcsta; /* base+0x60h */
u32 rsv3[3];
emmc_cfg0_reg emmc_cfg0; /* base+0x70h */
emmc_cfg1_reg emmc_cfg1; /* base+0x74h */
emmc_sts_reg emmc_sts; /* base+0x78h */
emmc_iocon_reg emmc_iocon; /* base+0x7ch */
msdc_acmd_resp_reg acmd_resp; /* base+0x80h */
msdc_acmd19_trg_reg acmd19_trg; /* base+0x84h */
msdc_acmd19_sts_reg acmd19_sts; /* base+0x88h */
u32 rsv4[1];
msdc_dma_sa_reg dma_sa; /* base+0x90h */
msdc_dma_ca_reg dma_ca; /* base+0x94h */
msdc_dma_ctrl_reg dma_ctrl; /* base+0x98h */
msdc_dma_cfg_reg dma_cfg; /* base+0x9ch */
msdc_dbg_sel_reg dbg_sel; /* base+0xa0h */
msdc_dbg_out_reg dbg_out; /* base+0xa4h */
u32 rsv5[2];
u32 patch0; /* base+0xb0h */
u32 patch1; /* base+0xb4h */
u32 rsv6[10];
msdc_pad_ctl0_reg pad_ctl0; /* base+0xe0h */
msdc_pad_ctl1_reg pad_ctl1; /* base+0xe4h */
msdc_pad_ctl2_reg pad_ctl2; /* base+0xe8h */
msdc_pad_tune_reg pad_tune; /* base+0xech */
msdc_dat_rddly0 dat_rddly0; /* base+0xf0h */
msdc_dat_rddly1 dat_rddly1; /* base+0xf4h */
msdc_hw_dbg_reg hw_dbg; /* base+0xf8h */
u32 rsv7[1];
msdc_version_reg version; /* base+0x100h */
msdc_eco_ver_reg eco_ver; /* base+0x104h */
};
struct scatterlist_ex {
u32 cmd;
u32 arg;
u32 sglen;
struct scatterlist *sg;
};
#define DMA_FLAG_NONE (0x00000000)
#define DMA_FLAG_EN_CHKSUM (0x00000001)
#define DMA_FLAG_PAD_BLOCK (0x00000002)
#define DMA_FLAG_PAD_DWORD (0x00000004)
struct msdc_dma {
u32 flags; /* flags */
u32 xfersz; /* xfer size in bytes */
u32 sglen; /* size of scatter list */
u32 blklen; /* block size */
struct scatterlist *sg; /* I/O scatter list */
struct scatterlist_ex *esg; /* extended I/O scatter list */
u8 mode; /* dma mode */
u8 burstsz; /* burst size */
u8 intr; /* dma done interrupt */
u8 padding; /* padding */
u32 cmd; /* enhanced mode command */
u32 arg; /* enhanced mode arg */
u32 rsp; /* enhanced mode command response */
u32 autorsp; /* auto command response */
gpd_t *gpd; /* pointer to gpd array */
bd_t *bd; /* pointer to bd array */
dma_addr_t gpd_addr; /* the physical address of gpd array */
dma_addr_t bd_addr; /* the physical address of bd array */
u32 used_gpd; /* the number of used gpd elements */
u32 used_bd; /* the number of used bd elements */
};
struct msdc_host
{
struct msdc_hw *hw;
struct mmc_host *mmc; /* mmc structure */
struct mmc_command *cmd;
struct mmc_data *data;
struct mmc_request *mrq;
int cmd_rsp;
int cmd_rsp_done;
int cmd_r1b_done;
int error;
spinlock_t lock; /* mutex */
struct semaphore sem;
u32 blksz; /* host block size */
u32 base; /* host base address */
int id; /* host id */
int pwr_ref; /* core power reference count */
u32 xfer_size; /* total transferred size */
struct msdc_dma dma; /* dma channel */
u32 dma_addr; /* dma transfer address */
u32 dma_left_size; /* dma transfer left size */
u32 dma_xfer_size; /* dma transfer size in bytes */
int dma_xfer; /* dma transfer mode */
u32 timeout_ns; /* data timeout ns */
u32 timeout_clks; /* data timeout clks */
atomic_t abort; /* abort transfer */
int irq; /* host interrupt */
struct tasklet_struct card_tasklet;
#if 0
struct work_struct card_workqueue;
#else
struct delayed_work card_delaywork;
#endif
struct completion cmd_done;
struct completion xfer_done;
struct pm_message pm_state;
u32 mclk; /* mmc subsystem clock */
u32 hclk; /* host clock speed */
u32 sclk; /* SD/MS clock speed */
u8 core_clkon; /* Host core clock on ? */
u8 card_clkon; /* Card clock on ? */
u8 core_power; /* core power */
u8 power_mode; /* host power mode */
u8 card_inserted; /* card inserted ? */
u8 suspend; /* host suspended ? */
u8 reserved;
u8 app_cmd; /* for app command */
u32 app_cmd_arg;
u64 starttime;
};
static inline unsigned int uffs(unsigned int x)
{
unsigned int r = 1;
if (!x)
return 0;
if (!(x & 0xffff)) {
x >>= 16;
r += 16;
}
if (!(x & 0xff)) {
x >>= 8;
r += 8;
}
if (!(x & 0xf)) {
x >>= 4;
r += 4;
}
if (!(x & 3)) {
x >>= 2;
r += 2;
}
if (!(x & 1)) {
x >>= 1;
r += 1;
}
return r;
}
#define sdr_read8(reg) __raw_readb(reg)
#define sdr_read16(reg) __raw_readw(reg)
#define sdr_read32(reg) __raw_readl(reg)
#define sdr_write8(reg,val) __raw_writeb(val,reg)
#define sdr_write16(reg,val) __raw_writew(val,reg)
#define sdr_write32(reg,val) __raw_writel(val,reg)
#define sdr_set_bits(reg,bs) ((*(volatile u32*)(reg)) |= (u32)(bs))
#define sdr_clr_bits(reg,bs) ((*(volatile u32*)(reg)) &= ~((u32)(bs)))
#define sdr_set_field(reg,field,val) \
do { \
volatile unsigned int tv = sdr_read32(reg); \
tv &= ~(field); \
tv |= ((val) << (uffs((unsigned int)field) - 1)); \
sdr_write32(reg,tv); \
} while(0)
#define sdr_get_field(reg,field,val) \
do { \
volatile unsigned int tv = sdr_read32(reg); \
val = ((tv & (field)) >> (uffs((unsigned int)field) - 1)); \
} while(0)
#endif