[2/3] exynos5: modify thermal management unit code for coreboot

This updates the Exynos TMU code for coreboot:
- Remove dependency on device tree
- Add Makefile entries

Change-Id: I55e1b624d7c7b695b1253ec55f6ae3de8dc671bc
Signed-off-by: David Hendricks <dhendrix@chromium.org>
Reviewed-on: http://review.coreboot.org/3107
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Tested-by: build bot (Jenkins)

4 files changed, 48 insertions, 82 deletions

diff --git a/src/cpu/samsung/exynos5250/Makefile.inc b/src/cpu/samsung/exynos5250/Makefile.inc
index 1046b8bc0b..8788a6c88e 100644
--- a/src/cpu/samsung/exynos5250/Makefile.inc
+++ b/src/cpu/samsung/exynos5250/Makefile.inc
@@ -28,6 +28,7 @@ ramstage-y += power.c
 ramstage-y += soc.c
 ramstage-$(CONFIG_CONSOLE_SERIAL_UART) += uart.c
 ramstage-y += cpu.c
+ramstage-y += exynos5250-tmu.c
 ramstage-y += mct.c
 
 #ramstage-$(CONFIG_SATA_AHCI) += sata.c
diff --git a/src/cpu/samsung/exynos5250/cpu.h b/src/cpu/samsung/exynos5250/cpu.h
index a356e19990..cff966ee98 100644
--- a/src/cpu/samsung/exynos5250/cpu.h
+++ b/src/cpu/samsung/exynos5250/cpu.h
@@ -120,4 +120,6 @@ enum periph_id exynos5_get_periph_id(unsigned base_addr);
 
 void exynos5250_config_l2_cache(void);
 
+extern struct tmu_info exynos5250_tmu_info;
+
 #endif	/* _EXYNOS5250_CPU_H */
diff --git a/src/cpu/samsung/exynos5250/exynos-tmu.h b/src/cpu/samsung/exynos5250/exynos-tmu.h
deleted file mode 100644
index ad9e394456..0000000000
--- a/src/cpu/samsung/exynos5250/exynos-tmu.h
+++ /dev/null
@@ -1,82 +0,0 @@
-/*
- * Copyright (c) 2012 Samsung Electronics Co., Ltd.
- *      http://www.samsung.com
- * Akshay Saraswat <Akshay.s@samsung.com>
- *
- * EXYNOS - Thermal Management Unit
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-
-#ifndef __ASM_ARCH_THERMAL_H
-#define __ASM_ARCH_THERMAL_H
-
-struct tmu_reg {
-	unsigned triminfo;
-	unsigned rsvd1;
-	unsigned rsvd2;
-	unsigned rsvd3;
-	unsigned rsvd4;
-	unsigned triminfo_control;
-	unsigned rsvd5;
-	unsigned rsvd6;
-	unsigned tmu_control;
-	unsigned rsvd7;
-	unsigned tmu_status;
-	unsigned sampling_internal;
-	unsigned counter_value0;
-	unsigned counter_value1;
-	unsigned rsvd8;
-	unsigned rsvd9;
-	unsigned current_temp;
-	unsigned rsvd10;
-	unsigned rsvd11;
-	unsigned rsvd12;
-	unsigned threshold_temp_rise;
-	unsigned threshold_temp_fall;
-	unsigned rsvd13;
-	unsigned rsvd14;
-	unsigned past_temp3_0;
-	unsigned past_temp7_4;
-	unsigned past_temp11_8;
-	unsigned past_temp15_12;
-	unsigned inten;
-	unsigned intstat;
-	unsigned intclear;
-	unsigned rsvd15;
-	unsigned emul_con;
-};
-
-enum tmu_status_t {
-	TMU_STATUS_INIT = 0,
-	TMU_STATUS_NORMAL,
-	TMU_STATUS_WARNING,
-	TMU_STATUS_TRIPPED,
-};
-
-/*
- * Monitors status of the TMU device and exynos temperature
- *
- * @param temp	pointer to the current temperature value
- * @return	enum tmu_status_t value, code indicating event to execute
- *		and -1 on error
- */
-enum tmu_status_t tmu_monitor(int *temp);
-
-/*
- * Initialize TMU device
- *
- * @param blob  FDT blob
- * @return	int value, 0 for success
- */
-int tmu_init(const void *blob);
-#endif
diff --git a/src/cpu/samsung/exynos5250/exynos5250-tmu.c b/src/cpu/samsung/exynos5250/exynos5250-tmu.c
new file mode 100644
index 0000000000..7d8397c568
--- /dev/null
+++ b/src/cpu/samsung/exynos5250/exynos5250-tmu.c
@@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2013 Google Inc.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ *
+ * This file contains Exynos5250-specific TMU information.
+ */
+
+#include <cpu/samsung/exynos5-common/exynos-tmu.h>
+#include <cpu/samsung/exynos5250/cpu.h>
+
+struct tmu_info exynos5250_tmu_info = {
+	.tmu_base = 0x10060000,
+	.tmu_mux = 6,
+	.data = {
+		.ts = {
+			.min_val = 25,
+			.max_val = 125,
+			.start_warning = 95,
+			.start_tripping = 105,
+			.hardware_tripping = 110,
+		},
+		.efuse_min_value = 40,
+		.efuse_value = 55,
+		.efuse_max_value = 100,
+		.slope = 0x10008802,
+	},
+	.dc_value = 25,
+};