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tmp451: Show correct temperature for T210B01
The thermal measurement substrate transistor was changed in Mariko SoCs. This ensures that it's properly offset by -12.5 °C.
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@ -42,6 +42,7 @@
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#include <storage/nx_sd.h>
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#include <storage/sdmmc.h>
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#include <thermal/fan.h>
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#include <thermal/tmp451.h>
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#include <utils/util.h>
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extern boot_cfg_t b_cfg;
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@ -425,9 +426,10 @@ void hw_reinit_workaround(bool coreboot, u32 magic)
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bpmp_clk_rate_set(BPMP_CLK_NORMAL);
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#ifdef NYX
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// Deinit touchscreen, 5V regulators and Joy-Con.
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touch_power_off();
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// Disable temperature sensor, touchscreen, 5V regulators and Joy-Con.
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tmp451_end();
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set_fan_duty(0);
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touch_power_off();
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jc_deinit();
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regulator_5v_disable(REGULATOR_5V_ALL);
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clock_disable_uart(UART_B);
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@ -1,7 +1,7 @@
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/*
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* SOC/PCB Temperature driver for Nintendo Switch's TI TMP451
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*
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* Copyright (c) 2018 CTCaer
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* Copyright (c) 2018-2020 CTCaer
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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@ -16,7 +16,9 @@
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <soc/hw_init.h>
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#include <soc/i2c.h>
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#include <soc/t210.h>
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#include <thermal/tmp451.h>
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u16 tmp451_get_soc_temp(bool intenger)
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@ -56,6 +58,20 @@ void tmp451_init()
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// Disable ALARM and Range to 0 - 127 oC.
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i2c_send_byte(I2C_1, TMP451_I2C_ADDR, TMP451_CONFIG_REG, 0x80);
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// Set remote sensor offsets based on SoC.
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if (hw_get_chip_id() == GP_HIDREV_MAJOR_T210)
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{
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// Set offset to 0 oC for Erista.
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i2c_send_byte(I2C_1, TMP451_I2C_ADDR, TMP451_SOC_TMP_OFH_REG, 0);
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i2c_send_byte(I2C_1, TMP451_I2C_ADDR, TMP451_SOC_TMP_OFL_REG, 0);
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}
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else
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{
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// Set offset to -12.5 oC for Mariko.
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i2c_send_byte(I2C_1, TMP451_I2C_ADDR, TMP451_SOC_TMP_OFH_REG, 0xF3); // - 13 oC.
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i2c_send_byte(I2C_1, TMP451_I2C_ADDR, TMP451_SOC_TMP_OFL_REG, 0x80); // + 0.5 oC.
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}
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// Set conversion rate to 32/s and make a read to update the reg.
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i2c_send_byte(I2C_1, TMP451_I2C_ADDR, TMP451_CNV_RATE_REG, 9);
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tmp451_get_soc_temp(false);
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@ -63,3 +79,9 @@ void tmp451_init()
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// Set rate to every 4 seconds.
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i2c_send_byte(I2C_1, TMP451_I2C_ADDR, TMP451_CNV_RATE_REG, 2);
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}
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void tmp451_end()
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{
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// Place into shutdown mode to conserve power.
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i2c_send_byte(I2C_1, TMP451_I2C_ADDR, TMP451_CONFIG_REG, 0xC0);
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}
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@ -32,11 +32,15 @@
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#define TMP451_SOC_TMP_DEC_REG 0x10
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#define TMP451_PCB_TMP_DEC_REG 0x15
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#define TMP451_SOC_TMP_OFH_REG 0x11
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#define TMP451_SOC_TMP_OFL_REG 0x12
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// If input is false, the return value is packed. MSByte is the integer in oC
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// and the LSByte is the decimal point truncated to 2 decimal places.
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// Otherwise it's an integer oC.
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u16 tmp451_get_soc_temp(bool integer);
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u16 tmp451_get_pcb_temp(bool integer);
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void tmp451_init();
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void tmp451_end();
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#endif /* __TMP451_H_ */
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