1f15cb8f5b
This patch has been tested on the mcf54415-based stmark2 board. The eSDHC driver works reliably using DMA mode. Signed-off-by: Angelo Dureghello <angelo@sysam.it>
273 lines
8.3 KiB
C
273 lines
8.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
|
|
/*
|
|
* FSL SD/MMC Defines
|
|
*-------------------------------------------------------------------
|
|
*
|
|
* Copyright 2007-2008,2010-2011 Freescale Semiconductor, Inc
|
|
*/
|
|
|
|
#ifndef __FSL_ESDHC_H__
|
|
#define __FSL_ESDHC_H__
|
|
|
|
#include <linux/bitops.h>
|
|
#include <linux/errno.h>
|
|
#include <asm/byteorder.h>
|
|
|
|
/* needed for the mmc_cfg definition */
|
|
#include <mmc.h>
|
|
|
|
#ifdef CONFIG_FSL_ESDHC_ADAPTER_IDENT
|
|
#include "../board/freescale/common/qixis.h"
|
|
#endif
|
|
|
|
/* FSL eSDHC-specific constants */
|
|
#define SYSCTL 0x0002e02c
|
|
#define SYSCTL_INITA 0x08000000
|
|
#define SYSCTL_TIMEOUT_MASK 0x000f0000
|
|
#define SYSCTL_CLOCK_MASK 0x0000fff0
|
|
#if !defined(CONFIG_FSL_USDHC)
|
|
#define SYSCTL_CKEN 0x00000008
|
|
#define SYSCTL_PEREN 0x00000004
|
|
#define SYSCTL_HCKEN 0x00000002
|
|
#define SYSCTL_IPGEN 0x00000001
|
|
#endif
|
|
#define SYSCTL_RSTA 0x01000000
|
|
#define SYSCTL_RSTC 0x02000000
|
|
#define SYSCTL_RSTD 0x04000000
|
|
|
|
#define VENDORSPEC_CKEN 0x00004000
|
|
#define VENDORSPEC_PEREN 0x00002000
|
|
#define VENDORSPEC_HCKEN 0x00001000
|
|
#define VENDORSPEC_IPGEN 0x00000800
|
|
#define VENDORSPEC_INIT 0x20007809
|
|
|
|
#define IRQSTAT 0x0002e030
|
|
#define IRQSTAT_DMAE (0x10000000)
|
|
#define IRQSTAT_AC12E (0x01000000)
|
|
#define IRQSTAT_DEBE (0x00400000)
|
|
#define IRQSTAT_DCE (0x00200000)
|
|
#define IRQSTAT_DTOE (0x00100000)
|
|
#define IRQSTAT_CIE (0x00080000)
|
|
#define IRQSTAT_CEBE (0x00040000)
|
|
#define IRQSTAT_CCE (0x00020000)
|
|
#define IRQSTAT_CTOE (0x00010000)
|
|
#define IRQSTAT_CINT (0x00000100)
|
|
#define IRQSTAT_CRM (0x00000080)
|
|
#define IRQSTAT_CINS (0x00000040)
|
|
#define IRQSTAT_BRR (0x00000020)
|
|
#define IRQSTAT_BWR (0x00000010)
|
|
#define IRQSTAT_DINT (0x00000008)
|
|
#define IRQSTAT_BGE (0x00000004)
|
|
#define IRQSTAT_TC (0x00000002)
|
|
#define IRQSTAT_CC (0x00000001)
|
|
|
|
#define CMD_ERR (IRQSTAT_CIE | IRQSTAT_CEBE | IRQSTAT_CCE)
|
|
#define DATA_ERR (IRQSTAT_DEBE | IRQSTAT_DCE | IRQSTAT_DTOE | \
|
|
IRQSTAT_DMAE)
|
|
#define DATA_COMPLETE (IRQSTAT_TC | IRQSTAT_DINT)
|
|
|
|
#define IRQSTATEN 0x0002e034
|
|
#define IRQSTATEN_DMAE (0x10000000)
|
|
#define IRQSTATEN_AC12E (0x01000000)
|
|
#define IRQSTATEN_DEBE (0x00400000)
|
|
#define IRQSTATEN_DCE (0x00200000)
|
|
#define IRQSTATEN_DTOE (0x00100000)
|
|
#define IRQSTATEN_CIE (0x00080000)
|
|
#define IRQSTATEN_CEBE (0x00040000)
|
|
#define IRQSTATEN_CCE (0x00020000)
|
|
#define IRQSTATEN_CTOE (0x00010000)
|
|
#define IRQSTATEN_CINT (0x00000100)
|
|
#define IRQSTATEN_CRM (0x00000080)
|
|
#define IRQSTATEN_CINS (0x00000040)
|
|
#define IRQSTATEN_BRR (0x00000020)
|
|
#define IRQSTATEN_BWR (0x00000010)
|
|
#define IRQSTATEN_DINT (0x00000008)
|
|
#define IRQSTATEN_BGE (0x00000004)
|
|
#define IRQSTATEN_TC (0x00000002)
|
|
#define IRQSTATEN_CC (0x00000001)
|
|
|
|
#define ESDHCCTL 0x0002e40c
|
|
#define ESDHCCTL_PCS (0x00080000)
|
|
|
|
#define PRSSTAT 0x0002e024
|
|
#define PRSSTAT_DAT0 (0x01000000)
|
|
#define PRSSTAT_CLSL (0x00800000)
|
|
#define PRSSTAT_WPSPL (0x00080000)
|
|
#define PRSSTAT_CDPL (0x00040000)
|
|
#define PRSSTAT_CINS (0x00010000)
|
|
#define PRSSTAT_BREN (0x00000800)
|
|
#define PRSSTAT_BWEN (0x00000400)
|
|
#define PRSSTAT_SDSTB (0X00000008)
|
|
#define PRSSTAT_DLA (0x00000004)
|
|
#define PRSSTAT_CICHB (0x00000002)
|
|
#define PRSSTAT_CIDHB (0x00000001)
|
|
|
|
#define PROCTL 0x0002e028
|
|
#define PROCTL_INIT 0x00000020
|
|
#define PROCTL_DTW_4 0x00000002
|
|
#define PROCTL_DTW_8 0x00000004
|
|
#define PROCTL_D3CD 0x00000008
|
|
|
|
#define CMDARG 0x0002e008
|
|
|
|
#define XFERTYP 0x0002e00c
|
|
#define XFERTYP_CMD(x) ((x & 0x3f) << 24)
|
|
#define XFERTYP_CMDTYP_NORMAL 0x0
|
|
#define XFERTYP_CMDTYP_SUSPEND 0x00400000
|
|
#define XFERTYP_CMDTYP_RESUME 0x00800000
|
|
#define XFERTYP_CMDTYP_ABORT 0x00c00000
|
|
#define XFERTYP_DPSEL 0x00200000
|
|
#define XFERTYP_CICEN 0x00100000
|
|
#define XFERTYP_CCCEN 0x00080000
|
|
#define XFERTYP_RSPTYP_NONE 0
|
|
#define XFERTYP_RSPTYP_136 0x00010000
|
|
#define XFERTYP_RSPTYP_48 0x00020000
|
|
#define XFERTYP_RSPTYP_48_BUSY 0x00030000
|
|
#define XFERTYP_MSBSEL 0x00000020
|
|
#define XFERTYP_DTDSEL 0x00000010
|
|
#define XFERTYP_DDREN 0x00000008
|
|
#define XFERTYP_AC12EN 0x00000004
|
|
#define XFERTYP_BCEN 0x00000002
|
|
#define XFERTYP_DMAEN 0x00000001
|
|
|
|
#define CINS_TIMEOUT 1000
|
|
#define PIO_TIMEOUT 500
|
|
|
|
#define DSADDR 0x2e004
|
|
|
|
#define CMDRSP0 0x2e010
|
|
#define CMDRSP1 0x2e014
|
|
#define CMDRSP2 0x2e018
|
|
#define CMDRSP3 0x2e01c
|
|
|
|
#define DATPORT 0x2e020
|
|
|
|
#define WML 0x2e044
|
|
#define WML_WRITE 0x00010000
|
|
#ifdef CONFIG_FSL_SDHC_V2_3
|
|
#define WML_RD_WML_MAX 0x80
|
|
#define WML_WR_WML_MAX 0x80
|
|
#define WML_RD_WML_MAX_VAL 0x0
|
|
#define WML_WR_WML_MAX_VAL 0x0
|
|
#define WML_RD_WML_MASK 0x7f
|
|
#define WML_WR_WML_MASK 0x7f0000
|
|
#else
|
|
#define WML_RD_WML_MAX 0x10
|
|
#define WML_WR_WML_MAX 0x80
|
|
#define WML_RD_WML_MAX_VAL 0x10
|
|
#define WML_WR_WML_MAX_VAL 0x80
|
|
#define WML_RD_WML_MASK 0xff
|
|
#define WML_WR_WML_MASK 0xff0000
|
|
#endif
|
|
|
|
#define BLKATTR 0x2e004
|
|
#define BLKATTR_CNT(x) ((x & 0xffff) << 16)
|
|
#define BLKATTR_SIZE(x) (x & 0x1fff)
|
|
#define MAX_BLK_CNT 0x7fff /* so malloc will have enough room with 32M */
|
|
|
|
#define ESDHC_HOSTCAPBLT_VS18 0x04000000
|
|
#define ESDHC_HOSTCAPBLT_VS30 0x02000000
|
|
#define ESDHC_HOSTCAPBLT_VS33 0x01000000
|
|
#define ESDHC_HOSTCAPBLT_SRS 0x00800000
|
|
#define ESDHC_HOSTCAPBLT_DMAS 0x00400000
|
|
#define ESDHC_HOSTCAPBLT_HSS 0x00200000
|
|
|
|
#define ESDHC_VENDORSPEC_VSELECT 0x00000002 /* Use 1.8V */
|
|
|
|
/* Imported from Linux Kernel drivers/mmc/host/sdhci-esdhc-imx.c */
|
|
#define MIX_CTRL_DDREN BIT(3)
|
|
#define MIX_CTRL_DTDSEL_READ BIT(4)
|
|
#define MIX_CTRL_AC23EN BIT(7)
|
|
#define MIX_CTRL_EXE_TUNE BIT(22)
|
|
#define MIX_CTRL_SMPCLK_SEL BIT(23)
|
|
#define MIX_CTRL_AUTO_TUNE_EN BIT(24)
|
|
#define MIX_CTRL_FBCLK_SEL BIT(25)
|
|
#define MIX_CTRL_HS400_EN BIT(26)
|
|
#define MIX_CTRL_HS400_ES BIT(27)
|
|
/* Bits 3 and 6 are not SDHCI standard definitions */
|
|
#define MIX_CTRL_SDHCI_MASK 0xb7
|
|
/* Tuning bits */
|
|
#define MIX_CTRL_TUNING_MASK 0x03c00000
|
|
|
|
/* strobe dll register */
|
|
#define ESDHC_STROBE_DLL_CTRL 0x70
|
|
#define ESDHC_STROBE_DLL_CTRL_ENABLE BIT(0)
|
|
#define ESDHC_STROBE_DLL_CTRL_RESET BIT(1)
|
|
#define ESDHC_STROBE_DLL_CTRL_SLV_DLY_TARGET_DEFAULT 0x7
|
|
#define ESDHC_STROBE_DLL_CTRL_SLV_DLY_TARGET_SHIFT 3
|
|
|
|
#define ESDHC_STROBE_DLL_STATUS 0x74
|
|
#define ESDHC_STROBE_DLL_STS_REF_LOCK BIT(1)
|
|
#define ESDHC_STROBE_DLL_STS_SLV_LOCK 0x1
|
|
#define ESDHC_STROBE_DLL_CLK_FREQ 100000000
|
|
|
|
#define ESDHC_STD_TUNING_EN BIT(24)
|
|
/* NOTE: the minimum valid tuning start tap for mx6sl is 1 */
|
|
#define ESDHC_TUNING_START_TAP_DEFAULT 0x1
|
|
#define ESDHC_TUNING_START_TAP_MASK 0xff
|
|
#define ESDHC_TUNING_STEP_MASK 0x00070000
|
|
#define ESDHC_TUNING_STEP_SHIFT 16
|
|
|
|
#define ESDHC_FLAG_MULTIBLK_NO_INT BIT(1)
|
|
#define ESDHC_FLAG_ENGCM07207 BIT(2)
|
|
#define ESDHC_FLAG_USDHC BIT(3)
|
|
#define ESDHC_FLAG_MAN_TUNING BIT(4)
|
|
#define ESDHC_FLAG_STD_TUNING BIT(5)
|
|
#define ESDHC_FLAG_HAVE_CAP1 BIT(6)
|
|
#define ESDHC_FLAG_ERR004536 BIT(7)
|
|
#define ESDHC_FLAG_HS200 BIT(8)
|
|
#define ESDHC_FLAG_HS400 BIT(9)
|
|
#define ESDHC_FLAG_ERR010450 BIT(10)
|
|
#define ESDHC_FLAG_HS400_ES BIT(11)
|
|
|
|
struct fsl_esdhc_cfg {
|
|
phys_addr_t esdhc_base;
|
|
u32 sdhc_clk;
|
|
u8 max_bus_width;
|
|
int wp_enable;
|
|
int vs18_enable; /* Use 1.8V if set to 1 */
|
|
struct mmc_config cfg;
|
|
};
|
|
|
|
/* Select the correct accessors depending on endianess */
|
|
#if defined CONFIG_SYS_FSL_ESDHC_LE
|
|
#define esdhc_read32 in_le32
|
|
#define esdhc_write32 out_le32
|
|
#define esdhc_clrsetbits32 clrsetbits_le32
|
|
#define esdhc_clrbits32 clrbits_le32
|
|
#define esdhc_setbits32 setbits_le32
|
|
#elif defined(CONFIG_SYS_FSL_ESDHC_BE)
|
|
#define esdhc_read32 in_be32
|
|
#define esdhc_write32 out_be32
|
|
#define esdhc_clrsetbits32 clrsetbits_be32
|
|
#define esdhc_clrbits32 clrbits_be32
|
|
#define esdhc_setbits32 setbits_be32
|
|
#elif __BYTE_ORDER == __LITTLE_ENDIAN
|
|
#define esdhc_read32 in_le32
|
|
#define esdhc_write32 out_le32
|
|
#define esdhc_clrsetbits32 clrsetbits_le32
|
|
#define esdhc_clrbits32 clrbits_le32
|
|
#define esdhc_setbits32 setbits_le32
|
|
#elif __BYTE_ORDER == __BIG_ENDIAN
|
|
#define esdhc_read32 in_be32
|
|
#define esdhc_write32 out_be32
|
|
#define esdhc_clrsetbits32 clrsetbits_be32
|
|
#define esdhc_clrbits32 clrbits_be32
|
|
#define esdhc_setbits32 setbits_be32
|
|
#else
|
|
#error "Endianess is not defined: please fix to continue"
|
|
#endif
|
|
|
|
#ifdef CONFIG_FSL_ESDHC
|
|
int fsl_esdhc_mmc_init(bd_t *bis);
|
|
int fsl_esdhc_initialize(bd_t *bis, struct fsl_esdhc_cfg *cfg);
|
|
void fdt_fixup_esdhc(void *blob, bd_t *bd);
|
|
#else
|
|
static inline int fsl_esdhc_mmc_init(bd_t *bis) { return -ENOSYS; }
|
|
static inline void fdt_fixup_esdhc(void *blob, bd_t *bd) {}
|
|
#endif /* CONFIG_FSL_ESDHC */
|
|
void __noreturn mmc_boot(void);
|
|
void mmc_spl_load_image(uint32_t offs, unsigned int size, void *vdst);
|
|
|
|
#endif /* __FSL_ESDHC_H__ */
|