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bootloader: force SDIO 1.9V if flash is 80M

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If the SPI flash frequency is 80M, the voltage of SDIO is 1.9V,
otherwise, it can configured to 1.8V or 1.9V via menuconfig.
This commit is contained in:
Liu Zhi Fu 2018-03-19 16:09:52 +08:00
parent 7594127ca3
commit 072b353b45
2 changed files with 11 additions and 4 deletions
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13
components/bootloader/Kconfig.projbuild
View File

@ -43,9 +43,9 @@ config BOOTLOADER_SPI_WP_PIN
The default value (GPIO 7) is correct for WP pin on ESP32-D2WD integrated flash.
config BOOTLOADER_VDDSDIO_BOOST
bool "Increase VDDSDIO 1.8V LDO voltage to 1.9V"
default y
choice BOOTLOADER_VDDSDIO_BOOST
bool "VDDSDIO LDO voltage"
default BOOTLOADER_VDDSDIO_BOOST_1_9V
help
If this option is enabled, and VDDSDIO LDO is set to 1.8V (using EFUSE
or MTDI bootstrapping pin), bootloader will change LDO settings to
@ -55,6 +55,13 @@ config BOOTLOADER_VDDSDIO_BOOST
This option has no effect if VDDSDIO is set to 3.3V, or if the internal
VDDSDIO regulator is disabled via efuse.
config BOOTLOADER_VDDSDIO_BOOST_1_8V
bool "1.8V"
depends on !ESPTOOLPY_FLASHFREQ_80M
config BOOTLOADER_VDDSDIO_BOOST_1_9V
bool "1.9V"
endchoice
endmenu # Bootloader

2
components/bootloader/subproject/main/bootloader_start.c
View File

@ -743,7 +743,7 @@ static void print_flash_info(const esp_image_header_t* phdr)
static void vddsdio_configure()
{
#if CONFIG_BOOTLOADER_VDDSDIO_BOOST
#if CONFIG_BOOTLOADER_VDDSDIO_BOOST_1_9V
rtc_vddsdio_config_t cfg = rtc_vddsdio_get_config();
if (cfg.enable == 1 && cfg.tieh == 0) { // VDDSDIO regulator is enabled @ 1.8V
cfg.drefh = 3;