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authorBiju Das <biju.das.jz@bp.renesas.com>2020-12-16 09:53:19 +0000
committerBiju Das <biju.das.jz@bp.renesas.com>2021-01-13 13:03:48 +0000
commitb28c29d0084e1380333881d718ebeb0ef65b10a5 (patch)
treeceeb125fd8f024cd05383743e7e7a4b8a119645a /drivers/renesas/rcar/emmc/emmc_utility.c
parentbe92e5a22f83fe5e580b4c60148ec9b150b82c23 (diff)
downloadtrusted-firmware-a-b28c29d0084e1380333881d718ebeb0ef65b10a5.tar.gz
drivers: renesas: eMMC: Move to common
Move eMMC driver code to common directory, so that the same code can be re-used by both R-Car Gen3 and RZ/G2 platforms. Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com> Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Change-Id: I7f3055709337327d1a1c9f563c14ad1626adb355
Diffstat (limited to 'drivers/renesas/rcar/emmc/emmc_utility.c')
-rw-r--r--drivers/renesas/rcar/emmc/emmc_utility.c226
1 files changed, 0 insertions, 226 deletions
diff --git a/drivers/renesas/rcar/emmc/emmc_utility.c b/drivers/renesas/rcar/emmc/emmc_utility.c
deleted file mode 100644
index 2e88abc75f..0000000000
--- a/drivers/renesas/rcar/emmc/emmc_utility.c
+++ /dev/null
@@ -1,226 +0,0 @@
-/*
- * Copyright (c) 2015-2020, Renesas Electronics Corporation. All rights reserved.
- *
- * SPDX-License-Identifier: BSD-3-Clause
- */
-
-#include <common/debug.h>
-
-#include "emmc_config.h"
-#include "emmc_def.h"
-#include "emmc_hal.h"
-#include "emmc_registers.h"
-#include "emmc_std.h"
-
-static const uint32_t cmd_reg_hw[EMMC_CMD_MAX + 1] = {
- 0x00000000, /* CMD0 */
- 0x00000701, /* CMD1 */
- 0x00000002, /* CMD2 */
- 0x00000003, /* CMD3 */
- 0x00000004, /* CMD4 */
- 0x00000505, /* CMD5 */
- 0x00000406, /* CMD6 */
- 0x00000007, /* CMD7 */
- 0x00001C08, /* CMD8 */
- 0x00000009, /* CMD9 */
- 0x0000000A, /* CMD10 */
- 0x00000000, /* reserved */
- 0x0000000C, /* CMD12 */
- 0x0000000D, /* CMD13 */
- 0x00001C0E, /* CMD14 */
- 0x0000000F, /* CMD15 */
- 0x00000010, /* CMD16 */
- 0x00000011, /* CMD17 */
- 0x00007C12, /* CMD18 */
- 0x00000C13, /* CMD19 */
- 0x00000000,
- 0x00001C15, /* CMD21 */
- 0x00000000,
- 0x00000017, /* CMD23 */
- 0x00000018, /* CMD24 */
- 0x00006C19, /* CMD25 */
- 0x00000C1A, /* CMD26 */
- 0x0000001B, /* CMD27 */
- 0x0000001C, /* CMD28 */
- 0x0000001D, /* CMD29 */
- 0x0000001E, /* CMD30 */
- 0x00001C1F, /* CMD31 */
- 0x00000000,
- 0x00000000,
- 0x00000000,
- 0x00000423, /* CMD35 */
- 0x00000424, /* CMD36 */
- 0x00000000,
- 0x00000026, /* CMD38 */
- 0x00000427, /* CMD39 */
- 0x00000428, /* CMD40(send cmd) */
- 0x00000000,
- 0x0000002A, /* CMD42 */
- 0x00000000,
- 0x00000000,
- 0x00000000,
- 0x00000000,
- 0x00000000,
- 0x00000000,
- 0x00000C31,
- 0x00000000,
- 0x00000000,
- 0x00000000,
- 0x00007C35,
- 0x00006C36,
- 0x00000037, /* CMD55 */
- 0x00000038, /* CMD56(Read) */
- 0x00000000,
- 0x00000000,
- 0x00000000,
- 0x00000000
-};
-
-uint32_t emmc_bit_field(uint8_t *data, uint32_t top, uint32_t bottom)
-{
- uint32_t value;
-
- uint32_t index_top = (uint32_t) (15 - (top >> 3));
- uint32_t index_bottom = (uint32_t) (15 - (bottom >> 3));
-
- if (index_top == index_bottom) {
- value = data[index_top];
- } else if ((index_top + 1) == index_bottom) {
- value =
- (uint32_t) ((data[index_top] << 8) | data[index_bottom]);
- } else if ((index_top + 2) == index_bottom) {
- value =
- (uint32_t) ((data[index_top] << 16) |
- (data[index_top + 1] << 8) | data[index_top +
- 2]);
- } else {
- value =
- (uint32_t) ((data[index_top] << 24) |
- (data[index_top + 1] << 16) |
- (data[index_top + 2] << 8) |
- data[index_top + 3]);
- }
-
- value = ((value >> (bottom & 0x07)) & ((1 << (top - bottom + 1)) - 1));
-
- return value;
-}
-
-void emmc_write_error_info(uint16_t func_no, EMMC_ERROR_CODE error_code)
-{
-
- mmc_drv_obj.error_info.num = func_no;
- mmc_drv_obj.error_info.code = (uint16_t) error_code;
-
- ERROR("BL2: emmc err:func_no=0x%x code=0x%x\n", func_no, error_code);
-}
-
-void emmc_write_error_info_func_no(uint16_t func_no)
-{
-
- mmc_drv_obj.error_info.num = func_no;
-
- ERROR("BL2: emmc err:func_no=0x%x\n", func_no);
-}
-
-void emmc_make_nontrans_cmd(HAL_MEMCARD_COMMAND cmd, uint32_t arg)
-{
- /* command information */
- mmc_drv_obj.cmd_info.cmd = cmd;
- mmc_drv_obj.cmd_info.arg = arg;
- mmc_drv_obj.cmd_info.dir = HAL_MEMCARD_READ;
- mmc_drv_obj.cmd_info.hw =
- cmd_reg_hw[cmd & HAL_MEMCARD_COMMAND_INDEX_MASK];
-
- /* clear data transfer information */
- mmc_drv_obj.trans_size = 0;
- mmc_drv_obj.remain_size = 0;
- mmc_drv_obj.buff_address_virtual = NULL;
- mmc_drv_obj.buff_address_physical = NULL;
-
- /* response information */
- mmc_drv_obj.response_length = 6;
-
- switch (mmc_drv_obj.cmd_info.cmd & HAL_MEMCARD_RESPONSE_TYPE_MASK) {
- case HAL_MEMCARD_RESPONSE_NONE:
- mmc_drv_obj.response = (uint32_t *) mmc_drv_obj.response_data;
- mmc_drv_obj.response_length = 0;
- break;
- case HAL_MEMCARD_RESPONSE_R1:
- mmc_drv_obj.response = &mmc_drv_obj.r1_card_status;
- break;
- case HAL_MEMCARD_RESPONSE_R1b:
- mmc_drv_obj.cmd_info.hw |= BIT10; /* bit10 = R1 busy bit */
- mmc_drv_obj.response = &mmc_drv_obj.r1_card_status;
- break;
- case HAL_MEMCARD_RESPONSE_R2:
- mmc_drv_obj.response = (uint32_t *) mmc_drv_obj.response_data;
- mmc_drv_obj.response_length = 17;
- break;
- case HAL_MEMCARD_RESPONSE_R3:
- mmc_drv_obj.response = &mmc_drv_obj.r3_ocr;
- break;
- case HAL_MEMCARD_RESPONSE_R4:
- mmc_drv_obj.response = &mmc_drv_obj.r4_resp;
- break;
- case HAL_MEMCARD_RESPONSE_R5:
- mmc_drv_obj.response = &mmc_drv_obj.r5_resp;
- break;
- default:
- mmc_drv_obj.response = (uint32_t *) mmc_drv_obj.response_data;
- break;
- }
-}
-
-void emmc_make_trans_cmd(HAL_MEMCARD_COMMAND cmd, uint32_t arg,
- uint32_t *buff_address_virtual,
- uint32_t len,
- HAL_MEMCARD_OPERATION dir,
- HAL_MEMCARD_DATA_TRANSFER_MODE transfer_mode)
-{
- emmc_make_nontrans_cmd(cmd, arg); /* update common information */
-
- /* for data transfer command */
- mmc_drv_obj.cmd_info.dir = dir;
- mmc_drv_obj.buff_address_virtual = buff_address_virtual;
- mmc_drv_obj.buff_address_physical = buff_address_virtual;
- mmc_drv_obj.trans_size = len;
- mmc_drv_obj.remain_size = len;
- mmc_drv_obj.transfer_mode = transfer_mode;
-}
-
-EMMC_ERROR_CODE emmc_send_idle_cmd(uint32_t arg)
-{
- EMMC_ERROR_CODE result;
- uint32_t freq;
-
- /* initialize state */
- mmc_drv_obj.mount = FALSE;
- mmc_drv_obj.selected = FALSE;
- mmc_drv_obj.during_transfer = FALSE;
- mmc_drv_obj.during_cmd_processing = FALSE;
- mmc_drv_obj.during_dma_transfer = FALSE;
- mmc_drv_obj.dma_error_flag = FALSE;
- mmc_drv_obj.force_terminate = FALSE;
- mmc_drv_obj.state_machine_blocking = FALSE;
-
- mmc_drv_obj.bus_width = HAL_MEMCARD_DATA_WIDTH_1_BIT;
- mmc_drv_obj.max_freq = MMC_20MHZ; /* 20MHz */
- mmc_drv_obj.current_state = EMMC_R1_STATE_IDLE;
-
- /* CMD0 (MMC clock is current frequency. if Data transfer mode, 20MHz or higher.) */
- emmc_make_nontrans_cmd(CMD0_GO_IDLE_STATE, arg); /* CMD0 */
- result = emmc_exec_cmd(EMMC_R1_ERROR_MASK, mmc_drv_obj.response);
- if (result != EMMC_SUCCESS) {
- return result;
- }
-
- /* change MMC clock(400KHz) */
- freq = MMC_400KHZ;
- result = emmc_set_request_mmc_clock(&freq);
- if (result != EMMC_SUCCESS) {
- return result;
- }
-
- return EMMC_SUCCESS;
-}