michaelh/zephyr
1
0
Fork 0
Code Releases Activity

soc: esp32s2: drivers: flash: add support

Browse source 
to host SPI Flash driver.

Signed-off-by: Glauber Maroto Ferreira <glauber.ferreira@espressif.com>
This commit is contained in:
Glauber Maroto Ferreira 2021-09-20 21:19:23 -03:00 • committed by Christopher Friedt
commit dcf26d72f5
8 changed files with 87 additions and 10 deletions
Download patch file Download diff file Expand all files Collapse all files

2
soc/xtensa/esp32s2/linker.ld
View file

@ -220,6 +220,7 @@ _net_buf_pool_list = _esp_net_buf_pool_list;
*libzephyr.a:log_core.*(.rodata .rodata.*)
*libzephyr.a:log_backend_uart.*(.rodata .rodata.*)
*libzephyr.a:log_output.*(.rodata .rodata.*)
*libdrivers__flash.a:flash_esp32.*(.rodata .rodata.*)
. = ALIGN(4);
__esp_log_const_start = .;
@ -310,6 +311,7 @@ __shell_root_cmds_end = __esp_shell_root_cmds_end;
*libsoc.a:rtc_*.*(.literal .text .literal.* .text.*)
*libsoc.a:cpu_util.*(.literal .text .literal.* .text.*)
*libgcc.a:lib2funcs.*(.literal .text .literal.* .text.*)
*libdrivers__flash.a:flash_esp32.*(.literal .text .literal.* .text.*)
*libzephyr.a:windowspill_asm.*(.literal .text .literal.* .text.*)
*libzephyr.a:log_noos.*(.literal .text .literal.* .text.*)
*libdrivers__timer.a:xtensa_sys_timer.*(.literal .text .literal.* .text.*)

4
soc/xtensa/esp32s2/soc.c
View file

@ -20,6 +20,7 @@
#include "esp_private/system_internal.h"
#include "esp32s2/rom/cache.h"
#include "soc/gpio_periph.h"
#include "esp_spi_flash.h"
#include "hal/cpu_ll.h"
#include "esp_err.h"
#include "sys/printk.h"
@ -118,6 +119,9 @@ void __attribute__((section(".iram1"))) __start(void)
*wdt_rtc_protect = 0;
#endif
#if CONFIG_SOC_FLASH_ESP32
spi_flash_guard_set(&g_flash_guard_default_ops);
#endif
esp_intr_initialize();
/* Start Zephyr */
z_cstart();

7
soc/xtensa/esp32s2/soc.h
View file

@ -42,7 +42,12 @@ extern void esp_rom_Cache_Set_ICache_Mode(cache_size_t cache_size, cache_ways_t
cache_line_size_t cache_line_size);
extern void esp_rom_Cache_Invalidate_ICache_All(void);
void esp_rom_Cache_Resume_ICache(uint32_t autoload);
extern void esp_rom_Cache_Resume_ICache(uint32_t autoload);
extern int esp_rom_Cache_Invalidate_Addr(uint32_t addr, uint32_t size);
/* ROM information related to SPI Flash chip timing and device */
extern esp_rom_spiflash_chip_t g_rom_flashchip;
extern uint8_t g_rom_spiflash_dummy_len_plus[];
extern uint32_t esp_rom_g_ticks_per_us_pro;