1 files changed, 0 insertions, 143 deletions
diff --git a/driver/amd_stt.c b/driver/amd_stt.c
deleted file mode 100644
index 90fd82523b..0000000000
--- a/driver/amd_stt.c
+++ /dev/null
@@ -1,143 +0,0 @@
-/* Copyright 2021 The Chromium OS Authors. All rights reserved.
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#include "amd_stt.h"
-#include "common.h"
-#include "chipset.h"
-#include "console.h"
-#include "driver/sb_rmi.h"
-#include "hooks.h"
-#include "math_util.h"
-#include "temp_sensor.h"
-#include "util.h"
-
-/* Debug flag can be toggled with console command: stt debug */
-static bool amd_stt_debug;
-
-/* Console output macros */
-#define CPUTS(outstr) cputs(CC_THERMAL, outstr)
-#define CPRINTS(format, args...) cprints(CC_THERMAL, format, ## args)
-
-static const char * const amd_stt_sensor_name[] = {
-	[AMD_STT_PCB_SENSOR_APU] = "APU",
-	[AMD_STT_PCB_SENSOR_REMOTE] = "Ambient",
-	[AMD_STT_PCB_SENSOR_GPU] = "GPU",
-};
-
-/**
- * Write temperature sensor value to AP via SB-RMI
- *
- * sensor:
- *	AMD_STT_PCB_SENSOR_APU
- *	AMD_STT_PCB_SENSOR_REMOTE
- *	AMD_STT_PCB_SENSOR_GPU
- *
- * temp_mk:
- *	Temperature in degrees milli kelvin
- */
-static int write_stt_sensor_val(enum amd_stt_pcb_sensor sensor, int temp_mk)
-{
-	uint32_t msgIn = 0;
-	uint32_t msgOut;
-	int temp_mc;
-	int temp_c_fp_msb;
-	int temp_c_fp_lsb;
-
-	temp_mc = MILLI_KELVIN_TO_MILLI_CELSIUS(temp_mk);
-
-	if (amd_stt_debug)
-		CPRINTS("STT: %s = %d.%d °C", amd_stt_sensor_name[sensor],
-			temp_mc / 1000, temp_mc % 1000);
-
-	/* Divide by 1000 to get MSB of fixed point temp */
-	temp_c_fp_msb = temp_mc / 1000;
-	/* Modulus 1000 and multiply by 256/1000 to get LSB of fixed point*/
-	temp_c_fp_lsb = ((temp_mc % 1000) << 8) / 1000;
-
-	/*
-	 * [15:0]: temperature as signed integer with 8 fractional bits.
-	 * [23:16]: sensor index
-	 * [31:24]: unused
-	 */
-	msgIn |= (temp_c_fp_lsb & 0xff);
-	msgIn |= (temp_c_fp_msb & 0xff) << 8;
-	msgIn |= (sensor & 0xff) << 16;
-	return sb_rmi_mailbox_xfer(SB_RMI_WRITE_STT_SENSOR_CMD, msgIn, &msgOut);
-}
-
-static void amd_stt_handler(void)
-{
-	int rv;
-	int soc_temp_mk;
-	int ambient_temp_mk;
-
-	/* STT interface is only active in S0 */
-	if (!chipset_in_state(CHIPSET_STATE_ON))
-		return;
-
-	/*
-	 * TODO(b/192391025): Replace with temp_sensor_read_mk(TEMP_SENSOR_SOC)
-	 */
-	rv = board_get_soc_temp_mk(&soc_temp_mk);
-	if (rv) {
-		CPRINTS("STT: Failed to read SOC temp rv:%d", rv);
-		return;
-	}
-
-	rv = write_stt_sensor_val(AMD_STT_PCB_SENSOR_APU, soc_temp_mk);
-	if (rv) {
-		CPRINTS("STT: Failed to write SOC temp rv:%d", rv);
-		return;
-	}
-
-	/*
-	 * TODO(b/192391025): Replace with
-	 *	temp_sensor_read_mk(TEMP_SENSOR_AMBIENT)
-	 */
-	rv = board_get_ambient_temp_mk(&ambient_temp_mk);
-	if (rv) {
-		CPRINTS("STT: Failed to read AMBIENT temp rv:%d", rv);
-		return;
-	}
-
-	rv = write_stt_sensor_val(AMD_STT_PCB_SENSOR_REMOTE, ambient_temp_mk);
-	if (rv) {
-		CPRINTS("STT: Failed to write AMBIENT temp rv:%d", rv);
-		return;
-	}
-}
-DECLARE_HOOK(HOOK_SECOND, amd_stt_handler, HOOK_PRIO_TEMP_SENSOR+1);
-
-static int command_stt(int argc, char **argv)
-{
-	int sensor_id;
-	int temp;
-
-	if (argc < 2)
-		return EC_ERROR_PARAM1;
-	else if (!strcasecmp(argv[1], "debug")) {
-		amd_stt_debug = !amd_stt_debug;
-		return EC_SUCCESS;
-	} else if (argc != 3)
-		return EC_ERROR_PARAM2;
-	else if (!strcasecmp(argv[1],
-			     amd_stt_sensor_name[AMD_STT_PCB_SENSOR_APU]))
-		sensor_id = AMD_STT_PCB_SENSOR_APU;
-	else if (!strcasecmp(argv[1],
-			     amd_stt_sensor_name[AMD_STT_PCB_SENSOR_REMOTE]))
-		sensor_id = AMD_STT_PCB_SENSOR_REMOTE;
-	else if (!strcasecmp(argv[1],
-			     amd_stt_sensor_name[AMD_STT_PCB_SENSOR_GPU]))
-		sensor_id = AMD_STT_PCB_SENSOR_GPU;
-	else
-		return EC_ERROR_PARAM2;
-
-	temp = atoi(argv[2]);
-
-	return write_stt_sensor_val(sensor_id, temp);
-}
-DECLARE_CONSOLE_COMMAND(stt, command_stt,
-			"<apu|ambient|gpu|debug> <temp in mK>",
-			"Write an STT mK temperature to AP");