This adds support for the Mediatek thermal controller found on MT8173
and likely other SoCs.
The controller is a bit special. It does not have its own ADC, instead
it controls the on-SoC AUXADC via AHB bus accesses. For this reason
we need the physical address of the AUXADC. Also it controls a mux
using AHB bus accesses, so we need the APMIXEDSYS physical address aswell.
Signed-off-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
---
diff --git a/drivers/thermal/mtk_thermal.c b/drivers/thermal/mtk_thermal.c
new file mode 100644
index 0000000..06d52ef
--- /dev/null
+++ b/drivers/thermal/mtk_thermal.c
@@ -0,0 +1,582 @@
+/*
+ * Copyright (c) 2014 MediaTek Inc.
+ * Author: Hanyi.Wu <hanyi.wu@xxxxxxxxxxxx>
+#define TEMP_MONINTSTS 0x010
+#define TEMP_MONIDET0 0x014
+#define TEMP_MONIDET1 0x018
+#define TEMP_MONIDET2 0x01c
+#define TEMP_H2NTHRE 0x024
+#define TEMP_HTHRE 0x028
+#define TEMP_CTHRE 0x02c
+#define TEMP_OFFSETH 0x030
+#define TEMP_OFFSETL 0x034
+#define TEMP_MSRCTL1 0x03c
+#define TEMP_ADCEXT 0x058
+#define TEMP_ADCEXT1 0x05c
+#define TEMP_ADCEXTADDR 0x06c
+#define TEMP_ADCEXT1ADDR 0x070
+#define TEMP_IMMD0 0x0a0
+#define TEMP_IMMD1 0x0a4
+#define TEMP_IMMD2 0x0a8
+#define TEMP_PROTCTL 0x0c0
+#define TEMP_PROTTA 0x0c4
+#define TEMP_PROTTB 0x0c8
+#define TEMP_PROTTC 0x0cc
+#define TEMP_SPARE1 0x0f4
+#define TEMP_SPARE2 0x0f8
+#define TEMP_SPARE3 0x0fc
+#define THERMINTST 0x404
+#define PTPODINTST 0x408
+#define THSTAGE0ST 0x40c
+#define THSTAGE1ST 0x410
+#define THSTAGE2ST 0x414
+#define THAHBST0 0x418
+#define THAHBST1 0x41c /* Only for DE debug */
+#define PTPSPARE0 0x420
+#define PTPSPARE1 0x424
+#define PTPSPARE2 0x428
+#define PTPSPARE3 0x42c
+#define THSLPEVEB 0x430
+#define TEMP_MONINT_COLD(sp) (BIT(0) << ((sp) * 5))
+#define TEMP_MONINT_HOT(sp) (BIT(1) << ((sp) * 5))
+#define TEMP_MONINT_LOW_OFS(sp) (BIT(2) << ((sp) * 5))
+#define TEMP_MONINT_HIGH_OFS(sp) (BIT(3) << ((sp) * 5))
+#define TEMP_MONINT_HOT_TO_NORM(sp) (BIT(4) << ((sp) * 5))
+#define TEMP_MONINT_TIMEOUT BIT(15)
+#define TEMP_MONINT_IMMEDIATE_SENSE(sp) BIT(16 + (sp))
+#define TEMP_MONINT_FILTER_SENSE(sp) BIT(19 + (sp))
+#define TEMP_ADCWRITECTRL_ADC_EXTRA_WRITE BIT(2)
+#define TEMP_ADCWRITECTRL_ADC_EXTRA1_WRITE BIT(3)
+#define TEMP_PROTCTL_AVERAGE (0 << 16)
+#define TEMP_PROTCTL_MAXIMUM (1 << 16)
+#define TEMP_PROTCTL_SELECTED (2 << 16)