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esp32c6: add spi_flash support

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wuzhenghui
2022-07-12 21:19:35 +08:00
committed by Song Ruo Jing
parent 23e37393a7
commit ff8dd1e1a8
30 changed files with 133 additions and 42 deletions
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91
components/spi_flash/esp32c6/flash_ops_esp32c6.c
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/*
* SPDX-FileCopyrightText: 2022 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <string.h>
#include <sys/param.h>
#include "spi_flash_mmap.h"
#include "soc/soc_memory_layout.h"
#include "esp32c6/rom/cache.h"
#include "hal/spi_flash_hal.h"
#include "esp_flash.h"
#include "esp_log.h"
#include "esp_attr.h"
#include "esp_rom_spiflash.h"
#include "esp_private/spi_flash_os.h"
#define SPICACHE SPIMEM0
#define SPIFLASH SPIMEM1
#define FLASH_WRAP_CMD 0x77
esp_err_t spi_flash_wrap_set(spi_flash_wrap_mode_t mode)
{
uint32_t reg_bkp_ctrl = SPIFLASH.ctrl.val;
uint32_t reg_bkp_usr = SPIFLASH.user.val;
SPIFLASH.user.fwrite_dio = 0;
SPIFLASH.user.fwrite_dual = 0;
SPIFLASH.user.fwrite_qio = 1;
SPIFLASH.user.fwrite_quad = 0;
// SPIFLASH.ctrl.fcmd_dual = 0; // TODO: IDF-5333
SPIFLASH.ctrl.fcmd_quad = 0;
SPIFLASH.user.usr_dummy = 0;
SPIFLASH.user.usr_addr = 1;
SPIFLASH.user.usr_command = 1;
SPIFLASH.user2.usr_command_bitlen = 7;
SPIFLASH.user2.usr_command_value = FLASH_WRAP_CMD;
SPIFLASH.user1.usr_addr_bitlen = 23;
SPIFLASH.addr = 0;
SPIFLASH.user.usr_miso = 0;
SPIFLASH.user.usr_mosi = 1;
SPIFLASH.mosi_dlen.usr_mosi_bit_len = 7;
SPIFLASH.data_buf[0] = (uint32_t) mode << 4;;
SPIFLASH.cmd.usr = 1;
while (SPIFLASH.cmd.usr != 0)
{ }
SPIFLASH.ctrl.val = reg_bkp_ctrl;
SPIFLASH.user.val = reg_bkp_usr;
return ESP_OK;
}
esp_err_t spi_flash_enable_wrap(uint32_t wrap_size)
{
CLEAR_PERI_REG_MASK(SPI_MEM_CTRL2_REG(0), SPI_MEM_SPLIT_TRANS_EN_M); // TODO: IDF-5333 Newly added
switch (wrap_size) {
case 8:
return spi_flash_wrap_set(FLASH_WRAP_MODE_8B);
case 16:
return spi_flash_wrap_set(FLASH_WRAP_MODE_16B);
case 32:
return spi_flash_wrap_set(FLASH_WRAP_MODE_32B);
case 64:
return spi_flash_wrap_set(FLASH_WRAP_MODE_64B);
default:
return ESP_FAIL;
}
}
void spi_flash_disable_wrap(void)
{
spi_flash_wrap_set(FLASH_WRAP_MODE_DISABLE);
}
bool spi_flash_support_wrap_size(uint32_t wrap_size)
{
if (!REG_GET_BIT(SPI_MEM_CTRL_REG(0), SPI_MEM_FREAD_QIO) || !REG_GET_BIT(SPI_MEM_CTRL_REG(0), SPI_MEM_FASTRD_MODE)) {
return ESP_FAIL;
}
switch (wrap_size) {
case 0:
case 8:
case 16:
case 32:
case 64:
return true;
default:
return false;
}
}