3 files changed, 8 insertions, 79 deletions
diff --git a/src/soc/mediatek/mt8183/Makefile.inc b/src/soc/mediatek/mt8183/Makefile.inc
index b0dd48f7a4..43893c363d 100644
--- a/src/soc/mediatek/mt8183/Makefile.inc
+++ b/src/soc/mediatek/mt8183/Makefile.inc
@@ -1,7 +1,7 @@
 ifeq ($(CONFIG_SOC_MEDIATEK_MT8183),y)
 
-bootblock-y += auxadc.c
 bootblock-y += bootblock.c
+bootblock-y += ../common/auxadc.c
 bootblock-y += ../common/gpio.c gpio.c
 bootblock-y += ../common/pll.c pll.c
 bootblock-$(CONFIG_SPI_FLASH) += ../common/spi.c spi.c
@@ -15,7 +15,7 @@ decompressor-y += decompressor.c
 decompressor-y += ../common/mmu_operations.c
 decompressor-y += ../common/timer.c
 
-verstage-y += auxadc.c
+verstage-y += ../common/auxadc.c
 verstage-y += ../common/gpio.c gpio.c
 verstage-$(CONFIG_SPI_FLASH) += ../common/spi.c spi.c
 verstage-y += mt8183.c
@@ -24,7 +24,7 @@ verstage-y += ../common/timer.c
 verstage-y += ../common/uart.c
 verstage-y += ../common/wdt.c
 
-romstage-y += auxadc.c
+romstage-y += ../common/auxadc.c
 romstage-y += ../common/cbmem.c emi.c
 romstage-y += dramc_init_setting.c
 romstage-y += dramc_param.c
@@ -44,8 +44,8 @@ romstage-y += ../common/timer.c
 romstage-y += ../common/uart.c
 romstage-y += ../common/wdt.c
 
-ramstage-y += auxadc.c
 ramstage-y += emi.c
+ramstage-y += ../common/auxadc.c
 ramstage-y += ../common/ddp.c ddp.c
 ramstage-y += ../common/dsi.c dsi.c
 ramstage-y += ../common/gpio.c gpio.c
diff --git a/src/soc/mediatek/mt8183/auxadc.c b/src/soc/mediatek/mt8183/auxadc.c
deleted file mode 100644
index 19c994872f..0000000000
--- a/src/soc/mediatek/mt8183/auxadc.c
+++ /dev/null
@@ -1,73 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-
-#include <device/mmio.h>
-#include <assert.h>
-#include <delay.h>
-#include <soc/addressmap.h>
-#include <soc/auxadc.h>
-#include <soc/efuse.h>
-#include <soc/infracfg.h>
-#include <timer.h>
-
-static struct mtk_auxadc_regs *const mtk_auxadc = (void *)AUXADC_BASE;
-
-#define ADC_GE_A_SHIFT		10
-#define ADC_GE_A_MASK		(0x3ff << ADC_GE_A_SHIFT)
-#define ADC_OE_A_SHIFT		0
-#define ADC_OE_A_MASK		(0x3ff << ADC_OE_A_SHIFT)
-#define ADC_CALI_EN_A_SHIFT	20
-#define ADC_CALI_EN_A_MASK	(0x1 << ADC_CALI_EN_A_SHIFT)
-
-static int cali_oe;
-static int cali_ge;
-static int calibrated = 0;
-static void mt_auxadc_update_cali(void)
-{
-	uint32_t cali_reg;
-	int cali_ge_a;
-	int cali_oe_a;
-
-	cali_reg = read32(&mtk_efuse->adc_cali_reg);
-
-	if ((cali_reg & ADC_CALI_EN_A_MASK) != 0) {
-		cali_oe_a = (cali_reg & ADC_OE_A_MASK) >> ADC_OE_A_SHIFT;
-		cali_ge_a = (cali_reg & ADC_GE_A_MASK) >> ADC_GE_A_SHIFT;
-		cali_ge = cali_ge_a - 512;
-		cali_oe = cali_oe_a - 512;
-	}
-}
-static uint32_t auxadc_get_rawdata(int channel)
-{
-	setbits32(&mt8183_infracfg->module_sw_cg_1_clr, 1 << 10);
-	assert(wait_ms(300, !(read32(&mtk_auxadc->con2) & 0x1)));
-
-	clrbits32(&mtk_auxadc->con1, 1 << channel);
-	assert(wait_ms(300, !(read32(&mtk_auxadc->data[channel]) & (1 << 12))));
-
-	setbits32(&mtk_auxadc->con1, 1 << channel);
-	udelay(25);
-	assert(wait_ms(300, read32(&mtk_auxadc->data[channel]) & (1 << 12)));
-
-	uint32_t value = read32(&mtk_auxadc->data[channel]) & 0x0FFF;
-
-	setbits32(&mt8183_infracfg->module_sw_cg_1_set, 1 << 10);
-
-	return value;
-}
-
-int auxadc_get_voltage(unsigned int channel)
-{
-	uint32_t raw_value;
-	assert(channel < 16);
-
-	if (!calibrated) {
-		mt_auxadc_update_cali();
-		calibrated = 1;
-	}
-
-	/* 1.5V in 4096 steps */
-	raw_value = auxadc_get_rawdata(channel);
-
-	raw_value = raw_value - cali_oe;
-	return (int)((int64_t)raw_value * 1500000 / (4096 + cali_ge));
-}
diff --git a/src/soc/mediatek/mt8183/include/soc/auxadc.h b/src/soc/mediatek/mt8183/include/soc/auxadc.h
index 18350d63f0..0e07de073c 100644
--- a/src/soc/mediatek/mt8183/include/soc/auxadc.h
+++ b/src/soc/mediatek/mt8183/include/soc/auxadc.h
@@ -3,6 +3,8 @@
 #ifndef _MTK_ADC_H
 #define _MTK_ADC_H
 
+#include <soc/auxadc_common.h>
+#include <soc/infracfg.h>
 #include <stdint.h>
 
 typedef struct mtk_auxadc_regs {
@@ -16,6 +18,6 @@ typedef struct mtk_auxadc_regs {
 	uint32_t misc;
 } mtk_auxadc_regs;
 
-/* Return voltage in uVolt */
-int auxadc_get_voltage(unsigned int channel);
+static struct mt8183_infracfg_regs *const mtk_infracfg = mt8183_infracfg;
+
 #endif