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Improved flash-size auto-detection. 

No longer limited to the default 2MB.
This commit is contained in:
Johny Mattsson 2016-09-23 17:39:06 +10:00
parent 32e65da3ae
commit baf8249a79
2 changed files with 13 additions and 1 deletions
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2
components/base_nodemcu/user_main.c
View File

@ -76,6 +76,8 @@ void nodemcu_init(void)
}
#if defined ( CONFIG_BUILD_SPIFFS )
// This can take a while, so be nice and provide some feedback while waiting
printf ("Mounting flash filesystem...\n");
if (!vfs_mount("/FLASH", 0)) {
// Failed to mount -- try reformat
NODE_ERR("Formatting file system. Please wait...\n");

12
components/platform/flash_api.c
View File

@ -7,6 +7,7 @@
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include "rom/spi_flash.h"
#include "../../bootloader/src/main/bootloader_config.h"
@ -24,7 +25,14 @@ static inline struct flash_hdr flash_load_rom_header (void)
return hdr;
}
static uint32_t flash_detect_size_byte(void)
#define IRAM_SECTION __attribute__((section(".iram1")))
static void IRAM_SECTION do_flash_cfg_workaround (uint32_t sz)
{
// workaround: configure SPI flash size manually (2nd argument)
SPIParamCfg (0x1540ef, sz, 64*1024, 4096, 256, 0xffff);
}
static uint32_t __attribute__((section(".iram1"))) flash_detect_size_byte(void)
{
#define DETECT_SZ 32
uint32_t detected_size = FLASH_SIZE_1MBYTE;
@ -33,6 +41,7 @@ static uint32_t flash_detect_size_byte(void)
// Detect read failure or wrap-around on flash read to find end of flash
if (ESP_OK == spi_flash_read (0, (uint32_t *)data_orig, DETECT_SZ))
{
do_flash_cfg_workaround (FLASH_SIZE_16MBYTE);
while ((detected_size < FLASH_SIZE_16MBYTE) &&
(ESP_OK == spi_flash_read (
detected_size, (uint32_t *)data_new, DETECT_SZ)) &&
@ -40,6 +49,7 @@ static uint32_t flash_detect_size_byte(void)
{
detected_size *= 2;
}
do_flash_cfg_workaround (detected_size);
};
return detected_size;
#undef FLASH_BUFFER_SIZE_DETECT