diff options
Diffstat (limited to 'drivers/renesas/rcar/emmc/emmc_init.c')
| -rw-r--r-- | drivers/renesas/rcar/emmc/emmc_init.c | 165 |
1 files changed, 0 insertions, 165 deletions
diff --git a/drivers/renesas/rcar/emmc/emmc_init.c b/drivers/renesas/rcar/emmc/emmc_init.c deleted file mode 100644 index b27e16586..000000000 --- a/drivers/renesas/rcar/emmc/emmc_init.c +++ /dev/null @@ -1,165 +0,0 @@ -/* - * Copyright (c) 2015-2018, Renesas Electronics Corporation. All rights reserved. - * - * SPDX-License-Identifier: BSD-3-Clause - */ - -#include <stddef.h> - -#include <lib/mmio.h> - -#include "emmc_config.h" -#include "emmc_hal.h" -#include "emmc_std.h" -#include "emmc_registers.h" -#include "emmc_def.h" -#include "rcar_private.h" - -st_mmc_base mmc_drv_obj; - -EMMC_ERROR_CODE rcar_emmc_memcard_power(uint8_t mode) -{ - - if (mode == TRUE) { - /* power on (Vcc&Vccq is always power on) */ - mmc_drv_obj.card_power_enable = TRUE; - } else { - /* power off (Vcc&Vccq is always power on) */ - mmc_drv_obj.card_power_enable = FALSE; - mmc_drv_obj.mount = FALSE; - mmc_drv_obj.selected = FALSE; - } - - return EMMC_SUCCESS; -} -static __inline void emmc_set_retry_count(uint32_t retry) -{ - mmc_drv_obj.retries_after_fail = retry; -} - -static __inline void emmc_set_data_timeout(uint32_t data_timeout) -{ - mmc_drv_obj.data_timeout = data_timeout; -} - -static void emmc_memset(uint8_t *buff, uint8_t data, uint32_t cnt) -{ - if (buff == NULL) { - return; - } - - while (cnt > 0) { - *buff++ = data; - cnt--; - } -} - -static void emmc_driver_config(void) -{ - emmc_set_retry_count(EMMC_RETRY_COUNT); - emmc_set_data_timeout(EMMC_RW_DATA_TIMEOUT); -} - -static void emmc_drv_init(void) -{ - emmc_memset((uint8_t *) (&mmc_drv_obj), 0, sizeof(st_mmc_base)); - mmc_drv_obj.card_present = HAL_MEMCARD_CARD_IS_IN; - mmc_drv_obj.data_timeout = EMMC_RW_DATA_TIMEOUT; - mmc_drv_obj.bus_width = HAL_MEMCARD_DATA_WIDTH_1_BIT; -} - -static EMMC_ERROR_CODE emmc_dev_finalize(void) -{ - EMMC_ERROR_CODE result; - uint32_t dataL; - - /* MMC power off - * the power supply of eMMC device is always turning on. - * RST_n : Hi --> Low level. - */ - result = rcar_emmc_memcard_power(FALSE); - - /* host controller reset */ - SETR_32(SD_INFO1, 0x00000000U); /* all interrupt clear */ - SETR_32(SD_INFO2, SD_INFO2_CLEAR); /* all interrupt clear */ - SETR_32(SD_INFO1_MASK, 0x00000000U); /* all interrupt disable */ - SETR_32(SD_INFO2_MASK, SD_INFO2_CLEAR); /* all interrupt disable */ - SETR_32(SD_CLK_CTRL, 0x00000000U); /* MMC clock stop */ - - dataL = mmio_read_32(CPG_SMSTPCR3); - if ((dataL & CPG_MSTP_MMC) == 0U) { - dataL |= (CPG_MSTP_MMC); - mmio_write_32(CPG_CPGWPR, (~dataL)); - mmio_write_32(CPG_SMSTPCR3, dataL); - } - - return result; -} - -static EMMC_ERROR_CODE emmc_dev_init(void) -{ - /* Enable clock supply to eMMC. */ - mstpcr_write(CPG_SMSTPCR3, CPG_MSTPSR3, CPG_MSTP_MMC); - - /* Set SD clock */ - mmio_write_32(CPG_CPGWPR, ~((uint32_t) (BIT9 | BIT0))); /* SD phy 200MHz */ - - /* Stop SDnH clock & SDn=200MHz */ - mmio_write_32(CPG_SDxCKCR, (BIT9 | BIT0)); - - /* MMCIF initialize */ - SETR_32(SD_INFO1, 0x00000000U); /* all interrupt clear */ - SETR_32(SD_INFO2, SD_INFO2_CLEAR); /* all interrupt clear */ - SETR_32(SD_INFO1_MASK, 0x00000000U); /* all interrupt disable */ - SETR_32(SD_INFO2_MASK, SD_INFO2_CLEAR); /* all interrupt disable */ - - SETR_32(HOST_MODE, 0x00000000U); /* SD_BUF access width = 64-bit */ - SETR_32(SD_OPTION, 0x0000C0EEU); /* Bus width = 1bit, timeout=MAX */ - SETR_32(SD_CLK_CTRL, 0x00000000U); /* Automatic Control=Disable, Clock Output=Disable */ - - return EMMC_SUCCESS; -} - -static EMMC_ERROR_CODE emmc_reset_controller(void) -{ - EMMC_ERROR_CODE retult; - - /* initialize mmc driver */ - emmc_drv_init(); - - /* initialize H/W */ - retult = emmc_dev_init(); - if (EMMC_SUCCESS != retult) { - return retult; - } - - mmc_drv_obj.initialize = TRUE; - - return retult; - -} - -EMMC_ERROR_CODE emmc_terminate(void) -{ - EMMC_ERROR_CODE result; - - result = emmc_dev_finalize(); - - emmc_memset((uint8_t *) (&mmc_drv_obj), 0, sizeof(st_mmc_base)); - - return result; -} - -EMMC_ERROR_CODE rcar_emmc_init(void) -{ - EMMC_ERROR_CODE retult; - - retult = emmc_reset_controller(); - if (EMMC_SUCCESS != retult) { - return retult; - } - - emmc_driver_config(); - - return EMMC_SUCCESS; -} |