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efuse/add cpu freq rating

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This commit adds support for CPU max freqeuency rating
bits in CPU. Bootloader will now print an error if attempting
to 160MHz rated ESP32 at 240MHz.

EFUSE_CHIP_VER_RESERVE has been replaced by the
frequency rating bits. Dependancies on EFUSE_CHIP_VER_RESERVE
have been changed to use EFUSE_CHIP_VER_PKG
This commit is contained in:
Darian Leung
2018-02-28 17:12:34 +08:00
parent 6acb38af4c
commit 8b1277c55f
3 changed files with 49 additions and 22 deletions
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8
components/bootloader/subproject/main/bootloader_start.c
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@@ -447,6 +447,14 @@ void bootloader_main()
{
vddsdio_configure();
flash_gpio_configure();
#if (CONFIG_ESP32_DEFAULT_CPU_FREQ_MHZ == 240)
//Check if ESP32 is rated for a CPU frequency of 160MHz only
if (REG_GET_BIT(EFUSE_BLK0_RDATA3_REG, EFUSE_RD_CHIP_CPU_FREQ_RATED) &&
REG_GET_BIT(EFUSE_BLK0_RDATA3_REG, EFUSE_RD_CHIP_CPU_FREQ_LOW)) {
ESP_LOGE(TAG, "Chip CPU frequency rated for 160MHz. Modify CPU frequency in menuconfig");
return;
}
#endif
bootloader_clock_configure();
uart_console_configure();
wdt_reset_check();