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hwinit: Disable SD Card power on boot
Fixes issues with warmboot based reboots.
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1 changed files with 8 additions and 0 deletions
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@ -186,6 +186,9 @@ void _mbist_workaround()
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void _config_se_brom()
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{
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// Enable fuse clock.
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clock_enable_fuse(true);
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// Skip SBK/SSK if sept was run.
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if (!(b_cfg.boot_cfg & BOOT_CFG_SEPT_RUN))
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{
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@ -219,6 +222,11 @@ void _config_se_brom()
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void _config_regulators()
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{
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// Disable SDMMC1 IO power.
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gpio_output_enable(GPIO_PORT_E, GPIO_PIN_4, GPIO_OUTPUT_DISABLE);
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max77620_regulator_enable(REGULATOR_LDO2, 0);
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sd_power_cycle_time_start = get_tmr_ms();
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i2c_send_byte(I2C_5, MAX77620_I2C_ADDR, MAX77620_REG_CNFGBBC, MAX77620_CNFGBBC_RESISTOR_1K);
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i2c_send_byte(I2C_5, MAX77620_I2C_ADDR, MAX77620_REG_ONOFFCNFG1,
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(1 << 6) | (3 << MAX77620_ONOFFCNFG1_MRT_SHIFT)); // PWR delay for forced shutdown off.
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