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09d40e0e08
Enforce full include path for includes. Deprecate old paths.
The following folders inside include/lib have been left unchanged:
- include/lib/cpus/${ARCH}
- include/lib/el3_runtime/${ARCH}
The reason for this change is that having a global namespace for
includes isn't a good idea. It defeats one of the advantages of having
folders and it introduces problems that are sometimes subtle (because
you may not know the header you are actually including if there are two
of them).
For example, this patch had to be created because two headers were
called the same way: e0ea0928d5 ("Fix gpio includes of mt8173 platform
to avoid collision."). More recently, this patch has had similar
problems: 46f9b2c3a2 ("drivers: add tzc380 support").
This problem was introduced in commit 4ecca33988 ("Move include and
source files to logical locations"). At that time, there weren't too
many headers so it wasn't a real issue. However, time has shown that
this creates problems.
Platforms that want to preserve the way they include headers may add the
removed paths to PLAT_INCLUDES, but this is discouraged.
Change-Id: I39dc53ed98f9e297a5966e723d1936d6ccf2fc8f
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
129 lines
3.4 KiB
C
129 lines
3.4 KiB
C
/*
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* Copyright (c) 2015-2017, Renesas Electronics Corporation. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#include <arch_helpers.h>
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#include "emmc_config.h"
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#include "emmc_hal.h"
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#include "emmc_std.h"
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#include "emmc_registers.h"
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#include "emmc_def.h"
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#define MIN_EMMC(a, b) (((a) < (b)) ? (a) : (b))
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#define EMMC_RW_SECTOR_COUNT_MAX 0x0000ffffU
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static EMMC_ERROR_CODE emmc_multiple_block_read (uint32_t *buff_address_virtual,
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uint32_t sector_number, uint32_t count,
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HAL_MEMCARD_DATA_TRANSFER_MODE transfer_mode)
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{
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EMMC_ERROR_CODE result;
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/* parameter check */
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if ((count > EMMC_RW_SECTOR_COUNT_MAX)
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|| (count == 0)
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|| ((transfer_mode != HAL_MEMCARD_DMA)
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&& (transfer_mode != HAL_MEMCARD_NOT_DMA))
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) {
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emmc_write_error_info(EMMC_FUNCNO_READ_SECTOR, EMMC_ERR_PARAM);
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return EMMC_ERR_PARAM;
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}
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/* CMD23 */
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emmc_make_nontrans_cmd(CMD23_SET_BLOCK_COUNT, count);
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result = emmc_exec_cmd(EMMC_R1_ERROR_MASK, mmc_drv_obj.response);
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if (result != EMMC_SUCCESS) {
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return result;
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}
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SETR_32(SD_SECCNT, count);
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SETR_32(SD_STOP, 0x00000100);
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SETR_32(CC_EXT_MODE, (CC_EXT_MODE_CLEAR | CC_EXT_MODE_DMASDRW_ENABLE)); /* SD_BUF Read/Write DMA Transfer enable */
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/* CMD18 */
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emmc_make_trans_cmd(CMD18_READ_MULTIPLE_BLOCK, sector_number,
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buff_address_virtual,
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count << EMMC_SECTOR_SIZE_SHIFT, HAL_MEMCARD_READ,
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transfer_mode);
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result = emmc_exec_cmd(EMMC_R1_ERROR_MASK, mmc_drv_obj.response);
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if (result != EMMC_SUCCESS) {
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return result; /* CMD18 error code */
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}
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/* CMD13 */
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emmc_make_nontrans_cmd(CMD13_SEND_STATUS, EMMC_RCA << 16);
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result = emmc_exec_cmd(EMMC_R1_ERROR_MASK, mmc_drv_obj.response);
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if (result != EMMC_SUCCESS) {
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return result;
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}
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#if RCAR_BL2_DCACHE == 1
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if (transfer_mode == HAL_MEMCARD_NOT_DMA) {
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flush_dcache_range((uint64_t) buff_address_virtual,
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((size_t) count << EMMC_SECTOR_SIZE_SHIFT));
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}
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#endif /* RCAR_BL2_DCACHE == 1 */
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/* ready status check */
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if ((mmc_drv_obj.r1_card_status & EMMC_R1_READY) == 0) {
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emmc_write_error_info(EMMC_FUNCNO_READ_SECTOR,
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EMMC_ERR_CARD_BUSY);
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return EMMC_ERR_CARD_BUSY;
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}
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/* state check */
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if (mmc_drv_obj.current_state != EMMC_R1_STATE_TRAN) {
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emmc_write_error_info(EMMC_FUNCNO_READ_SECTOR,
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EMMC_ERR_CARD_STATE);
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return EMMC_ERR_CARD_STATE;
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}
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return EMMC_SUCCESS;
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}
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EMMC_ERROR_CODE emmc_read_sector(uint32_t *buff_address_virtual,
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uint32_t sector_number,
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uint32_t count, uint32_t feature_flags)
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{
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uint32_t trans_count;
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uint32_t remain;
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EMMC_ERROR_CODE result;
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HAL_MEMCARD_DATA_TRANSFER_MODE transfer_mode;
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/* parameter check */
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if (count == 0) {
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emmc_write_error_info(EMMC_FUNCNO_READ_SECTOR, EMMC_ERR_PARAM);
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return EMMC_ERR_PARAM;
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}
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/* state check */
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if (mmc_drv_obj.mount != TRUE) {
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emmc_write_error_info(EMMC_FUNCNO_READ_SECTOR, EMMC_ERR_STATE);
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return EMMC_ERR_STATE;
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}
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/* DMA? */
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if ((feature_flags & LOADIMAGE_FLAGS_DMA_ENABLE) != 0) {
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transfer_mode = HAL_MEMCARD_DMA;
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} else {
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transfer_mode = HAL_MEMCARD_NOT_DMA;
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}
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remain = count;
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while (remain != 0) {
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trans_count = MIN_EMMC(remain, EMMC_RW_SECTOR_COUNT_MAX);
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result =
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emmc_multiple_block_read(buff_address_virtual,
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sector_number, trans_count,
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transfer_mode);
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if (result != EMMC_SUCCESS) {
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return result;
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}
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buff_address_virtual += (EMMC_BLOCK_LENGTH_DW * trans_count);
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sector_number += trans_count;
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remain -= trans_count;
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}
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return EMMC_SUCCESS;
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}
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