This driver is long superseded by renesas-sdhi.c and unused. Drop the driver.
Signed-off-by: Marek Vasut marek.vasut+renesas@mailbox.org --- Cc: Jaehoon Chung jh80.chung@samsung.com Cc: Nobuhiro Iwamatsu iwamatsu@nigauri.org Cc: Peng Fan peng.fan@nxp.com --- drivers/mmc/Kconfig | 6 - drivers/mmc/Makefile | 1 - drivers/mmc/sh_sdhi.c | 910 ------------------------------------------ 3 files changed, 917 deletions(-) delete mode 100644 drivers/mmc/sh_sdhi.c
diff --git a/drivers/mmc/Kconfig b/drivers/mmc/Kconfig index de01b9687ba..726c8d8f705 100644 --- a/drivers/mmc/Kconfig +++ b/drivers/mmc/Kconfig @@ -390,12 +390,6 @@ config HSMMC2_8BIT depends on MMC_OMAP_HS && (OMAP44XX || OMAP54XX || DRA7XX || AM33XX || \ AM43XX || ARCH_KEYSTONE)
-config SH_SDHI - bool "SuperH/Renesas ARM SoCs on-chip SDHI host controller support" - depends on ARCH_RMOBILE - help - Support for the on-chip SDHI host controller on SuperH/Renesas ARM SoCs platform - config SH_MMCIF bool "SuperH/Renesas ARM SoCs on-chip MMCIF host controller support" depends on ARCH_RMOBILE || SH diff --git a/drivers/mmc/Makefile b/drivers/mmc/Makefile index 2c65c4765ab..e9cf1fcc640 100644 --- a/drivers/mmc/Makefile +++ b/drivers/mmc/Makefile @@ -49,7 +49,6 @@ obj-$(CONFIG_MMC_PCI) += pci_mmc.o obj-$(CONFIG_SUPPORT_EMMC_RPMB) += rpmb.o obj-$(CONFIG_MMC_SANDBOX) += sandbox_mmc.o obj-$(CONFIG_SH_MMCIF) += sh_mmcif.o -obj-$(CONFIG_SH_SDHI) += sh_sdhi.o obj-$(CONFIG_STM32_SDMMC2) += stm32_sdmmc2.o obj-$(CONFIG_JZ47XX_MMC) += jz_mmc.o obj-$(CONFIG_NEXELL_DWMMC) += nexell_dw_mmc.o diff --git a/drivers/mmc/sh_sdhi.c b/drivers/mmc/sh_sdhi.c deleted file mode 100644 index 3ce7cbf71f8..00000000000 --- a/drivers/mmc/sh_sdhi.c +++ /dev/null @@ -1,910 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * drivers/mmc/sh_sdhi.c - * - * SD/MMC driver for Renesas rmobile ARM SoCs. - * - * Copyright (C) 2011,2013-2017 Renesas Electronics Corporation - * Copyright (C) 2014 Nobuhiro Iwamatsu nobuhiro.iwamatsu.yj@renesas.com - * Copyright (C) 2008-2009 Renesas Solutions Corp. - */ - -#include <common.h> -#include <log.h> -#include <malloc.h> -#include <mmc.h> -#include <dm.h> -#include <part.h> -#include <dm/device_compat.h> -#include <linux/bitops.h> -#include <linux/delay.h> -#include <linux/errno.h> -#include <linux/compat.h> -#include <linux/io.h> -#include <linux/sizes.h> -#include <asm/arch/rmobile.h> -#include <asm/arch/sh_sdhi.h> -#include <asm/global_data.h> -#include <clk.h> - -#define DRIVER_NAME "sh-sdhi" - -struct sh_sdhi_host { - void __iomem *addr; - int ch; - int bus_shift; - unsigned long quirks; - unsigned char wait_int; - unsigned char sd_error; - unsigned char detect_waiting; - unsigned char app_cmd; -}; - -static inline void sh_sdhi_writeq(struct sh_sdhi_host *host, int reg, u64 val) -{ - writeq(val, host->addr + (reg << host->bus_shift)); -} - -static inline u64 sh_sdhi_readq(struct sh_sdhi_host *host, int reg) -{ - return readq(host->addr + (reg << host->bus_shift)); -} - -static inline void sh_sdhi_writew(struct sh_sdhi_host *host, int reg, u16 val) -{ - writew(val, host->addr + (reg << host->bus_shift)); -} - -static inline u16 sh_sdhi_readw(struct sh_sdhi_host *host, int reg) -{ - return readw(host->addr + (reg << host->bus_shift)); -} - -static void sh_sdhi_detect(struct sh_sdhi_host *host) -{ - sh_sdhi_writew(host, SDHI_OPTION, - OPT_BUS_WIDTH_1 | sh_sdhi_readw(host, SDHI_OPTION)); - - host->detect_waiting = 0; -} - -static int sh_sdhi_intr(void *dev_id) -{ - struct sh_sdhi_host *host = dev_id; - int state1 = 0, state2 = 0; - - state1 = sh_sdhi_readw(host, SDHI_INFO1); - state2 = sh_sdhi_readw(host, SDHI_INFO2); - - debug("%s: state1 = %x, state2 = %x\n", __func__, state1, state2); - - /* CARD Insert */ - if (state1 & INFO1_CARD_IN) { - sh_sdhi_writew(host, SDHI_INFO1, ~INFO1_CARD_IN); - if (!host->detect_waiting) { - host->detect_waiting = 1; - sh_sdhi_detect(host); - } - sh_sdhi_writew(host, SDHI_INFO1_MASK, INFO1M_RESP_END | - INFO1M_ACCESS_END | INFO1M_CARD_IN | - INFO1M_DATA3_CARD_RE | INFO1M_DATA3_CARD_IN); - return -EAGAIN; - } - /* CARD Removal */ - if (state1 & INFO1_CARD_RE) { - sh_sdhi_writew(host, SDHI_INFO1, ~INFO1_CARD_RE); - if (!host->detect_waiting) { - host->detect_waiting = 1; - sh_sdhi_detect(host); - } - sh_sdhi_writew(host, SDHI_INFO1_MASK, INFO1M_RESP_END | - INFO1M_ACCESS_END | INFO1M_CARD_RE | - INFO1M_DATA3_CARD_RE | INFO1M_DATA3_CARD_IN); - sh_sdhi_writew(host, SDHI_SDIO_INFO1_MASK, SDIO_INFO1M_ON); - sh_sdhi_writew(host, SDHI_SDIO_MODE, SDIO_MODE_OFF); - return -EAGAIN; - } - - if (state2 & INFO2_ALL_ERR) { - sh_sdhi_writew(host, SDHI_INFO2, - (unsigned short)~(INFO2_ALL_ERR)); - sh_sdhi_writew(host, SDHI_INFO2_MASK, - INFO2M_ALL_ERR | - sh_sdhi_readw(host, SDHI_INFO2_MASK)); - host->sd_error = 1; - host->wait_int = 1; - return 0; - } - /* Respons End */ - if (state1 & INFO1_RESP_END) { - sh_sdhi_writew(host, SDHI_INFO1, ~INFO1_RESP_END); - sh_sdhi_writew(host, SDHI_INFO1_MASK, - INFO1M_RESP_END | - sh_sdhi_readw(host, SDHI_INFO1_MASK)); - host->wait_int = 1; - return 0; - } - /* SD_BUF Read Enable */ - if (state2 & INFO2_BRE_ENABLE) { - sh_sdhi_writew(host, SDHI_INFO2, ~INFO2_BRE_ENABLE); - sh_sdhi_writew(host, SDHI_INFO2_MASK, - INFO2M_BRE_ENABLE | INFO2M_BUF_ILL_READ | - sh_sdhi_readw(host, SDHI_INFO2_MASK)); - host->wait_int = 1; - return 0; - } - /* SD_BUF Write Enable */ - if (state2 & INFO2_BWE_ENABLE) { - sh_sdhi_writew(host, SDHI_INFO2, ~INFO2_BWE_ENABLE); - sh_sdhi_writew(host, SDHI_INFO2_MASK, - INFO2_BWE_ENABLE | INFO2M_BUF_ILL_WRITE | - sh_sdhi_readw(host, SDHI_INFO2_MASK)); - host->wait_int = 1; - return 0; - } - /* Access End */ - if (state1 & INFO1_ACCESS_END) { - sh_sdhi_writew(host, SDHI_INFO1, ~INFO1_ACCESS_END); - sh_sdhi_writew(host, SDHI_INFO1_MASK, - INFO1_ACCESS_END | - sh_sdhi_readw(host, SDHI_INFO1_MASK)); - host->wait_int = 1; - return 0; - } - return -EAGAIN; -} - -static int sh_sdhi_wait_interrupt_flag(struct sh_sdhi_host *host) -{ - int timeout = 10000000; - - while (1) { - timeout--; - if (timeout < 0) { - debug(DRIVER_NAME": %s timeout\n", __func__); - return 0; - } - - if (!sh_sdhi_intr(host)) - break; - - udelay(1); /* 1 usec */ - } - - return 1; /* Return value: NOT 0 = complete waiting */ -} - -static int sh_sdhi_clock_control(struct sh_sdhi_host *host, unsigned long clk) -{ - u32 clkdiv, i, timeout; - - if (sh_sdhi_readw(host, SDHI_INFO2) & (1 << 14)) { - printf(DRIVER_NAME": Busy state ! Cannot change the clock\n"); - return -EBUSY; - } - - sh_sdhi_writew(host, SDHI_CLK_CTRL, - ~CLK_ENABLE & sh_sdhi_readw(host, SDHI_CLK_CTRL)); - - if (clk == 0) - return -EIO; - - clkdiv = 0x80; - i = CONFIG_SH_SDHI_FREQ >> (0x8 + 1); - for (; clkdiv && clk >= (i << 1); (clkdiv >>= 1)) - i <<= 1; - - sh_sdhi_writew(host, SDHI_CLK_CTRL, clkdiv); - - timeout = 100000; - /* Waiting for SD Bus busy to be cleared */ - while (timeout--) { - if ((sh_sdhi_readw(host, SDHI_INFO2) & 0x2000)) - break; - } - - if (timeout) - sh_sdhi_writew(host, SDHI_CLK_CTRL, - CLK_ENABLE | sh_sdhi_readw(host, SDHI_CLK_CTRL)); - else - return -EBUSY; - - return 0; -} - -static int sh_sdhi_sync_reset(struct sh_sdhi_host *host) -{ - u32 timeout; - sh_sdhi_writew(host, SDHI_SOFT_RST, SOFT_RST_ON); - sh_sdhi_writew(host, SDHI_SOFT_RST, SOFT_RST_OFF); - sh_sdhi_writew(host, SDHI_CLK_CTRL, - CLK_ENABLE | sh_sdhi_readw(host, SDHI_CLK_CTRL)); - - timeout = 100000; - while (timeout--) { - if (!(sh_sdhi_readw(host, SDHI_INFO2) & INFO2_CBUSY)) - break; - udelay(100); - } - - if (!timeout) - return -EBUSY; - - if (host->quirks & SH_SDHI_QUIRK_16BIT_BUF) - sh_sdhi_writew(host, SDHI_HOST_MODE, 1); - - return 0; -} - -static int sh_sdhi_error_manage(struct sh_sdhi_host *host) -{ - unsigned short e_state1, e_state2; - int ret; - - host->sd_error = 0; - host->wait_int = 0; - - e_state1 = sh_sdhi_readw(host, SDHI_ERR_STS1); - e_state2 = sh_sdhi_readw(host, SDHI_ERR_STS2); - if (e_state2 & ERR_STS2_SYS_ERROR) { - if (e_state2 & ERR_STS2_RES_STOP_TIMEOUT) - ret = -ETIMEDOUT; - else - ret = -EILSEQ; - debug("%s: ERR_STS2 = %04x\n", - DRIVER_NAME, sh_sdhi_readw(host, SDHI_ERR_STS2)); - sh_sdhi_sync_reset(host); - - sh_sdhi_writew(host, SDHI_INFO1_MASK, - INFO1M_DATA3_CARD_RE | INFO1M_DATA3_CARD_IN); - return ret; - } - if (e_state1 & ERR_STS1_CRC_ERROR || e_state1 & ERR_STS1_CMD_ERROR) - ret = -EILSEQ; - else - ret = -ETIMEDOUT; - - debug("%s: ERR_STS1 = %04x\n", - DRIVER_NAME, sh_sdhi_readw(host, SDHI_ERR_STS1)); - sh_sdhi_sync_reset(host); - sh_sdhi_writew(host, SDHI_INFO1_MASK, - INFO1M_DATA3_CARD_RE | INFO1M_DATA3_CARD_IN); - return ret; -} - -static int sh_sdhi_single_read(struct sh_sdhi_host *host, struct mmc_data *data) -{ - long time; - unsigned short blocksize, i; - unsigned short *p = (unsigned short *)data->dest; - u64 *q = (u64 *)data->dest; - - if ((unsigned long)p & 0x00000001) { - debug(DRIVER_NAME": %s: The data pointer is unaligned.", - __func__); - return -EIO; - } - - host->wait_int = 0; - sh_sdhi_writew(host, SDHI_INFO2_MASK, - ~(INFO2M_BRE_ENABLE | INFO2M_BUF_ILL_READ) & - sh_sdhi_readw(host, SDHI_INFO2_MASK)); - sh_sdhi_writew(host, SDHI_INFO1_MASK, - ~INFO1M_ACCESS_END & - sh_sdhi_readw(host, SDHI_INFO1_MASK)); - time = sh_sdhi_wait_interrupt_flag(host); - if (time == 0 || host->sd_error != 0) - return sh_sdhi_error_manage(host); - - host->wait_int = 0; - blocksize = sh_sdhi_readw(host, SDHI_SIZE); - if (host->quirks & SH_SDHI_QUIRK_64BIT_BUF) - for (i = 0; i < blocksize / 8; i++) - *q++ = sh_sdhi_readq(host, SDHI_BUF0); - else - for (i = 0; i < blocksize / 2; i++) - *p++ = sh_sdhi_readw(host, SDHI_BUF0); - - time = sh_sdhi_wait_interrupt_flag(host); - if (time == 0 || host->sd_error != 0) - return sh_sdhi_error_manage(host); - - host->wait_int = 0; - return 0; -} - -static int sh_sdhi_multi_read(struct sh_sdhi_host *host, struct mmc_data *data) -{ - long time; - unsigned short blocksize, i, sec; - unsigned short *p = (unsigned short *)data->dest; - u64 *q = (u64 *)data->dest; - - if ((unsigned long)p & 0x00000001) { - debug(DRIVER_NAME": %s: The data pointer is unaligned.", - __func__); - return -EIO; - } - - debug("%s: blocks = %d, blocksize = %d\n", - __func__, data->blocks, data->blocksize); - - host->wait_int = 0; - for (sec = 0; sec < data->blocks; sec++) { - sh_sdhi_writew(host, SDHI_INFO2_MASK, - ~(INFO2M_BRE_ENABLE | INFO2M_BUF_ILL_READ) & - sh_sdhi_readw(host, SDHI_INFO2_MASK)); - - time = sh_sdhi_wait_interrupt_flag(host); - if (time == 0 || host->sd_error != 0) - return sh_sdhi_error_manage(host); - - host->wait_int = 0; - blocksize = sh_sdhi_readw(host, SDHI_SIZE); - if (host->quirks & SH_SDHI_QUIRK_64BIT_BUF) - for (i = 0; i < blocksize / 8; i++) - *q++ = sh_sdhi_readq(host, SDHI_BUF0); - else - for (i = 0; i < blocksize / 2; i++) - *p++ = sh_sdhi_readw(host, SDHI_BUF0); - } - - return 0; -} - -static int sh_sdhi_single_write(struct sh_sdhi_host *host, - struct mmc_data *data) -{ - long time; - unsigned short blocksize, i; - const unsigned short *p = (const unsigned short *)data->src; - const u64 *q = (const u64 *)data->src; - - if ((unsigned long)p & 0x00000001) { - debug(DRIVER_NAME": %s: The data pointer is unaligned.", - __func__); - return -EIO; - } - - debug("%s: blocks = %d, blocksize = %d\n", - __func__, data->blocks, data->blocksize); - - host->wait_int = 0; - sh_sdhi_writew(host, SDHI_INFO2_MASK, - ~(INFO2M_BWE_ENABLE | INFO2M_BUF_ILL_WRITE) & - sh_sdhi_readw(host, SDHI_INFO2_MASK)); - sh_sdhi_writew(host, SDHI_INFO1_MASK, - ~INFO1M_ACCESS_END & - sh_sdhi_readw(host, SDHI_INFO1_MASK)); - - time = sh_sdhi_wait_interrupt_flag(host); - if (time == 0 || host->sd_error != 0) - return sh_sdhi_error_manage(host); - - host->wait_int = 0; - blocksize = sh_sdhi_readw(host, SDHI_SIZE); - if (host->quirks & SH_SDHI_QUIRK_64BIT_BUF) - for (i = 0; i < blocksize / 8; i++) - sh_sdhi_writeq(host, SDHI_BUF0, *q++); - else - for (i = 0; i < blocksize / 2; i++) - sh_sdhi_writew(host, SDHI_BUF0, *p++); - - time = sh_sdhi_wait_interrupt_flag(host); - if (time == 0 || host->sd_error != 0) - return sh_sdhi_error_manage(host); - - host->wait_int = 0; - return 0; -} - -static int sh_sdhi_multi_write(struct sh_sdhi_host *host, struct mmc_data *data) -{ - long time; - unsigned short i, sec, blocksize; - const unsigned short *p = (const unsigned short *)data->src; - const u64 *q = (const u64 *)data->src; - - debug("%s: blocks = %d, blocksize = %d\n", - __func__, data->blocks, data->blocksize); - - host->wait_int = 0; - for (sec = 0; sec < data->blocks; sec++) { - sh_sdhi_writew(host, SDHI_INFO2_MASK, - ~(INFO2M_BWE_ENABLE | INFO2M_BUF_ILL_WRITE) & - sh_sdhi_readw(host, SDHI_INFO2_MASK)); - - time = sh_sdhi_wait_interrupt_flag(host); - if (time == 0 || host->sd_error != 0) - return sh_sdhi_error_manage(host); - - host->wait_int = 0; - blocksize = sh_sdhi_readw(host, SDHI_SIZE); - if (host->quirks & SH_SDHI_QUIRK_64BIT_BUF) - for (i = 0; i < blocksize / 8; i++) - sh_sdhi_writeq(host, SDHI_BUF0, *q++); - else - for (i = 0; i < blocksize / 2; i++) - sh_sdhi_writew(host, SDHI_BUF0, *p++); - } - - return 0; -} - -static void sh_sdhi_get_response(struct sh_sdhi_host *host, struct mmc_cmd *cmd) -{ - unsigned short i, j, cnt = 1; - unsigned short resp[8]; - - if (cmd->resp_type & MMC_RSP_136) { - cnt = 4; - resp[0] = sh_sdhi_readw(host, SDHI_RSP00); - resp[1] = sh_sdhi_readw(host, SDHI_RSP01); - resp[2] = sh_sdhi_readw(host, SDHI_RSP02); - resp[3] = sh_sdhi_readw(host, SDHI_RSP03); - resp[4] = sh_sdhi_readw(host, SDHI_RSP04); - resp[5] = sh_sdhi_readw(host, SDHI_RSP05); - resp[6] = sh_sdhi_readw(host, SDHI_RSP06); - resp[7] = sh_sdhi_readw(host, SDHI_RSP07); - - /* SDHI REGISTER SPECIFICATION */ - for (i = 7, j = 6; i > 0; i--) { - resp[i] = (resp[i] << 8) & 0xff00; - resp[i] |= (resp[j--] >> 8) & 0x00ff; - } - resp[0] = (resp[0] << 8) & 0xff00; - } else { - resp[0] = sh_sdhi_readw(host, SDHI_RSP00); - resp[1] = sh_sdhi_readw(host, SDHI_RSP01); - } - -#if defined(__BIG_ENDIAN_BITFIELD) - if (cnt == 4) { - cmd->response[0] = (resp[6] << 16) | resp[7]; - cmd->response[1] = (resp[4] << 16) | resp[5]; - cmd->response[2] = (resp[2] << 16) | resp[3]; - cmd->response[3] = (resp[0] << 16) | resp[1]; - } else { - cmd->response[0] = (resp[0] << 16) | resp[1]; - } -#else - if (cnt == 4) { - cmd->response[0] = (resp[7] << 16) | resp[6]; - cmd->response[1] = (resp[5] << 16) | resp[4]; - cmd->response[2] = (resp[3] << 16) | resp[2]; - cmd->response[3] = (resp[1] << 16) | resp[0]; - } else { - cmd->response[0] = (resp[1] << 16) | resp[0]; - } -#endif /* __BIG_ENDIAN_BITFIELD */ -} - -static unsigned short sh_sdhi_set_cmd(struct sh_sdhi_host *host, - struct mmc_data *data, unsigned short opc) -{ - if (host->app_cmd) { - if (!data) - host->app_cmd = 0; - return opc | BIT(6); - } - - switch (opc) { - case MMC_CMD_SWITCH: - return opc | (data ? 0x1c00 : 0x40); - case MMC_CMD_SEND_EXT_CSD: - return opc | (data ? 0x1c00 : 0); - case MMC_CMD_SEND_OP_COND: - return opc | 0x0700; - case MMC_CMD_APP_CMD: - host->app_cmd = 1; - default: - return opc; - } -} - -static unsigned short sh_sdhi_data_trans(struct sh_sdhi_host *host, - struct mmc_data *data, unsigned short opc) -{ - if (host->app_cmd) { - host->app_cmd = 0; - switch (opc) { - case SD_CMD_APP_SEND_SCR: - case SD_CMD_APP_SD_STATUS: - return sh_sdhi_single_read(host, data); - default: - printf(DRIVER_NAME": SD: NOT SUPPORT APP CMD = d'%04d\n", - opc); - return -EINVAL; - } - } else { - switch (opc) { - case MMC_CMD_WRITE_MULTIPLE_BLOCK: - return sh_sdhi_multi_write(host, data); - case MMC_CMD_READ_MULTIPLE_BLOCK: - return sh_sdhi_multi_read(host, data); - case MMC_CMD_WRITE_SINGLE_BLOCK: - return sh_sdhi_single_write(host, data); - case MMC_CMD_READ_SINGLE_BLOCK: - case MMC_CMD_SWITCH: - case MMC_CMD_SEND_EXT_CSD:; - return sh_sdhi_single_read(host, data); - default: - printf(DRIVER_NAME": SD: NOT SUPPORT CMD = d'%04d\n", opc); - return -EINVAL; - } - } -} - -static int sh_sdhi_start_cmd(struct sh_sdhi_host *host, - struct mmc_data *data, struct mmc_cmd *cmd) -{ - long time; - unsigned short shcmd, opc = cmd->cmdidx; - int ret = 0; - unsigned long timeout; - - debug("opc = %d, arg = %x, resp_type = %x\n", - opc, cmd->cmdarg, cmd->resp_type); - - if (opc == MMC_CMD_STOP_TRANSMISSION) { - /* SDHI sends the STOP command automatically by STOP reg */ - sh_sdhi_writew(host, SDHI_INFO1_MASK, ~INFO1M_ACCESS_END & - sh_sdhi_readw(host, SDHI_INFO1_MASK)); - - time = sh_sdhi_wait_interrupt_flag(host); - if (time == 0 || host->sd_error != 0) - return sh_sdhi_error_manage(host); - - sh_sdhi_get_response(host, cmd); - return 0; - } - - if (data) { - if ((opc == MMC_CMD_READ_MULTIPLE_BLOCK) || - opc == MMC_CMD_WRITE_MULTIPLE_BLOCK) { - sh_sdhi_writew(host, SDHI_STOP, STOP_SEC_ENABLE); - sh_sdhi_writew(host, SDHI_SECCNT, data->blocks); - } - sh_sdhi_writew(host, SDHI_SIZE, data->blocksize); - } - - shcmd = sh_sdhi_set_cmd(host, data, opc); - - /* - * U-Boot cannot use interrupt. - * So this flag may not be clear by timing - */ - sh_sdhi_writew(host, SDHI_INFO1, ~INFO1_RESP_END); - - sh_sdhi_writew(host, SDHI_INFO1_MASK, - INFO1M_RESP_END | sh_sdhi_readw(host, SDHI_INFO1_MASK)); - sh_sdhi_writew(host, SDHI_ARG0, - (unsigned short)(cmd->cmdarg & ARG0_MASK)); - sh_sdhi_writew(host, SDHI_ARG1, - (unsigned short)((cmd->cmdarg >> 16) & ARG1_MASK)); - - timeout = 100000; - /* Waiting for SD Bus busy to be cleared */ - while (timeout--) { - if ((sh_sdhi_readw(host, SDHI_INFO2) & 0x2000)) - break; - } - - host->wait_int = 0; - sh_sdhi_writew(host, SDHI_INFO1_MASK, - ~INFO1M_RESP_END & sh_sdhi_readw(host, SDHI_INFO1_MASK)); - sh_sdhi_writew(host, SDHI_INFO2_MASK, - ~(INFO2M_CMD_ERROR | INFO2M_CRC_ERROR | - INFO2M_END_ERROR | INFO2M_TIMEOUT | - INFO2M_RESP_TIMEOUT | INFO2M_ILA) & - sh_sdhi_readw(host, SDHI_INFO2_MASK)); - - sh_sdhi_writew(host, SDHI_CMD, (unsigned short)(shcmd & CMD_MASK)); - time = sh_sdhi_wait_interrupt_flag(host); - if (!time) { - host->app_cmd = 0; - return sh_sdhi_error_manage(host); - } - - if (host->sd_error) { - switch (cmd->cmdidx) { - case MMC_CMD_ALL_SEND_CID: - case MMC_CMD_SELECT_CARD: - case SD_CMD_SEND_IF_COND: - case MMC_CMD_APP_CMD: - ret = -ETIMEDOUT; - break; - default: - debug(DRIVER_NAME": Cmd(d'%d) err\n", opc); - debug(DRIVER_NAME": cmdidx = %d\n", cmd->cmdidx); - ret = sh_sdhi_error_manage(host); - break; - } - host->sd_error = 0; - host->wait_int = 0; - host->app_cmd = 0; - return ret; - } - - if (sh_sdhi_readw(host, SDHI_INFO1) & INFO1_RESP_END) { - host->app_cmd = 0; - return -EINVAL; - } - - if (host->wait_int) { - sh_sdhi_get_response(host, cmd); - host->wait_int = 0; - } - - if (data) - ret = sh_sdhi_data_trans(host, data, opc); - - debug("ret = %d, resp = %08x, %08x, %08x, %08x\n", - ret, cmd->response[0], cmd->response[1], - cmd->response[2], cmd->response[3]); - return ret; -} - -static int sh_sdhi_send_cmd_common(struct sh_sdhi_host *host, - struct mmc_cmd *cmd, struct mmc_data *data) -{ - host->sd_error = 0; - - return sh_sdhi_start_cmd(host, data, cmd); -} - -static int sh_sdhi_set_ios_common(struct sh_sdhi_host *host, struct mmc *mmc) -{ - int ret; - - ret = sh_sdhi_clock_control(host, mmc->clock); - if (ret) - return -EINVAL; - - if (mmc->bus_width == 8) - sh_sdhi_writew(host, SDHI_OPTION, - OPT_BUS_WIDTH_8 | (~OPT_BUS_WIDTH_M & - sh_sdhi_readw(host, SDHI_OPTION))); - else if (mmc->bus_width == 4) - sh_sdhi_writew(host, SDHI_OPTION, - OPT_BUS_WIDTH_4 | (~OPT_BUS_WIDTH_M & - sh_sdhi_readw(host, SDHI_OPTION))); - else - sh_sdhi_writew(host, SDHI_OPTION, - OPT_BUS_WIDTH_1 | (~OPT_BUS_WIDTH_M & - sh_sdhi_readw(host, SDHI_OPTION))); - - debug("clock = %d, buswidth = %d\n", mmc->clock, mmc->bus_width); - - return 0; -} - -static int sh_sdhi_initialize_common(struct sh_sdhi_host *host) -{ - int ret = sh_sdhi_sync_reset(host); - - sh_sdhi_writew(host, SDHI_PORTSEL, USE_1PORT); - -#if defined(__BIG_ENDIAN_BITFIELD) - sh_sdhi_writew(host, SDHI_EXT_SWAP, SET_SWAP); -#endif - - sh_sdhi_writew(host, SDHI_INFO1_MASK, INFO1M_RESP_END | - INFO1M_ACCESS_END | INFO1M_CARD_RE | - INFO1M_DATA3_CARD_RE | INFO1M_DATA3_CARD_IN); - - return ret; -} - -#ifndef CONFIG_DM_MMC -static void *mmc_priv(struct mmc *mmc) -{ - return (void *)mmc->priv; -} - -static int sh_sdhi_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd, - struct mmc_data *data) -{ - struct sh_sdhi_host *host = mmc_priv(mmc); - - return sh_sdhi_send_cmd_common(host, cmd, data); -} - -static int sh_sdhi_set_ios(struct mmc *mmc) -{ - struct sh_sdhi_host *host = mmc_priv(mmc); - - return sh_sdhi_set_ios_common(host, mmc); -} - -static int sh_sdhi_initialize(struct mmc *mmc) -{ - struct sh_sdhi_host *host = mmc_priv(mmc); - - return sh_sdhi_initialize_common(host); -} - -static const struct mmc_ops sh_sdhi_ops = { - .send_cmd = sh_sdhi_send_cmd, - .set_ios = sh_sdhi_set_ios, - .init = sh_sdhi_initialize, -}; - -#ifdef CONFIG_RCAR_GEN3 -static struct mmc_config sh_sdhi_cfg = { - .name = DRIVER_NAME, - .ops = &sh_sdhi_ops, - .f_min = CLKDEV_INIT, - .f_max = CLKDEV_HS_DATA, - .voltages = MMC_VDD_165_195 | MMC_VDD_32_33 | MMC_VDD_33_34, - .host_caps = MMC_MODE_4BIT | MMC_MODE_8BIT | MMC_MODE_HS | - MMC_MODE_HS_52MHz, - .part_type = PART_TYPE_DOS, - .b_max = CONFIG_SYS_MMC_MAX_BLK_COUNT, -}; -#else -static struct mmc_config sh_sdhi_cfg = { - .name = DRIVER_NAME, - .ops = &sh_sdhi_ops, - .f_min = CLKDEV_INIT, - .f_max = CLKDEV_HS_DATA, - .voltages = MMC_VDD_32_33 | MMC_VDD_33_34, - .host_caps = MMC_MODE_4BIT | MMC_MODE_HS, - .part_type = PART_TYPE_DOS, - .b_max = CONFIG_SYS_MMC_MAX_BLK_COUNT, -}; -#endif - -int sh_sdhi_init(unsigned long addr, int ch, unsigned long quirks) -{ - int ret = 0; - struct mmc *mmc; - struct sh_sdhi_host *host = NULL; - - if (ch >= CFG_SYS_SH_SDHI_NR_CHANNEL) - return -ENODEV; - - host = malloc(sizeof(struct sh_sdhi_host)); - if (!host) - return -ENOMEM; - - mmc = mmc_create(&sh_sdhi_cfg, host); - if (!mmc) { - ret = -1; - goto error; - } - - host->ch = ch; - host->addr = (void __iomem *)addr; - host->quirks = quirks; - - if (host->quirks & SH_SDHI_QUIRK_64BIT_BUF) - host->bus_shift = 2; - else if (host->quirks & SH_SDHI_QUIRK_16BIT_BUF) - host->bus_shift = 1; - - return ret; -error: - free(host); - return ret; -} - -#else - -struct sh_sdhi_plat { - struct mmc_config cfg; - struct mmc mmc; -}; - -int sh_sdhi_dm_send_cmd(struct udevice *dev, struct mmc_cmd *cmd, - struct mmc_data *data) -{ - struct sh_sdhi_host *host = dev_get_priv(dev); - - return sh_sdhi_send_cmd_common(host, cmd, data); -} - -int sh_sdhi_dm_set_ios(struct udevice *dev) -{ - struct sh_sdhi_host *host = dev_get_priv(dev); - struct mmc *mmc = mmc_get_mmc_dev(dev); - - return sh_sdhi_set_ios_common(host, mmc); -} - -static const struct dm_mmc_ops sh_sdhi_dm_ops = { - .send_cmd = sh_sdhi_dm_send_cmd, - .set_ios = sh_sdhi_dm_set_ios, -}; - -static int sh_sdhi_dm_bind(struct udevice *dev) -{ - struct sh_sdhi_plat *plat = dev_get_plat(dev); - - return mmc_bind(dev, &plat->mmc, &plat->cfg); -} - -static int sh_sdhi_dm_probe(struct udevice *dev) -{ - struct sh_sdhi_plat *plat = dev_get_plat(dev); - struct sh_sdhi_host *host = dev_get_priv(dev); - struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev); - struct clk sh_sdhi_clk; - const u32 quirks = dev_get_driver_data(dev); - fdt_addr_t base; - int ret; - - base = dev_read_addr(dev); - if (base == FDT_ADDR_T_NONE) - return -EINVAL; - - host->addr = devm_ioremap(dev, base, SZ_2K); - if (!host->addr) - return -ENOMEM; - - ret = clk_get_by_index(dev, 0, &sh_sdhi_clk); - if (ret) { - debug("failed to get clock, ret=%d\n", ret); - return ret; - } - - ret = clk_enable(&sh_sdhi_clk); - if (ret) { - debug("failed to enable clock, ret=%d\n", ret); - return ret; - } - - host->quirks = quirks; - - if (host->quirks & SH_SDHI_QUIRK_64BIT_BUF) - host->bus_shift = 2; - else if (host->quirks & SH_SDHI_QUIRK_16BIT_BUF) - host->bus_shift = 1; - - plat->cfg.name = dev->name; - plat->cfg.host_caps = MMC_MODE_HS_52MHz | MMC_MODE_HS; - - switch (fdtdec_get_int(gd->fdt_blob, dev_of_offset(dev), "bus-width", - 1)) { - case 8: - plat->cfg.host_caps |= MMC_MODE_8BIT; - break; - case 4: - plat->cfg.host_caps |= MMC_MODE_4BIT; - break; - case 1: - break; - default: - dev_err(dev, "Invalid "bus-width" value\n"); - return -EINVAL; - } - - sh_sdhi_initialize_common(host); - - plat->cfg.voltages = MMC_VDD_165_195 | MMC_VDD_32_33 | MMC_VDD_33_34; - plat->cfg.f_min = CLKDEV_INIT; - plat->cfg.f_max = CLKDEV_HS_DATA; - plat->cfg.b_max = CONFIG_SYS_MMC_MAX_BLK_COUNT; - - upriv->mmc = &plat->mmc; - - return 0; -} - -static const struct udevice_id sh_sdhi_sd_match[] = { - { .compatible = "renesas,sdhi-r8a7795", .data = SH_SDHI_QUIRK_64BIT_BUF }, - { .compatible = "renesas,sdhi-r8a7796", .data = SH_SDHI_QUIRK_64BIT_BUF }, - { /* sentinel */ } -}; - -U_BOOT_DRIVER(sh_sdhi_mmc) = { - .name = "sh-sdhi-mmc", - .id = UCLASS_MMC, - .of_match = sh_sdhi_sd_match, - .bind = sh_sdhi_dm_bind, - .probe = sh_sdhi_dm_probe, - .priv_auto = sizeof(struct sh_sdhi_host), - .plat_auto = sizeof(struct sh_sdhi_plat), - .ops = &sh_sdhi_dm_ops, -}; -#endif