[PATCH V4 05/11] thermal: tegra: add T210-specific SOC_THERM driver

From: Wei Ni
Date: Mon Jan 25 2016 - 05:44:34 EST

Add Tegra210 specific SOC_THERM driver.

Signed-off-by: Wei Ni <wni@xxxxxxxxxx>
---
drivers/thermal/tegra/Makefile | 1 +
drivers/thermal/tegra/soctherm-fuse.c | 11 ++
drivers/thermal/tegra/soctherm.c | 6 ++
drivers/thermal/tegra/soctherm.h | 4 +
drivers/thermal/tegra/tegra210-soctherm.c | 173 ++++++++++++++++++++++++++++++
5 files changed, 195 insertions(+)
create mode 100644 drivers/thermal/tegra/tegra210-soctherm.c

diff --git a/drivers/thermal/tegra/Makefile b/drivers/thermal/tegra/Makefile
index d5fb15377b97..bf9e028eba28 100644
--- a/drivers/thermal/tegra/Makefile
+++ b/drivers/thermal/tegra/Makefile
@@ -2,3 +2,4 @@ obj-$(CONFIG_TEGRA_SOCTHERM) += tegra-soctherm.o

tegra-soctherm-y := soctherm.o soctherm-fuse.o
tegra-soctherm-$(CONFIG_ARCH_TEGRA_124_SOC) += tegra124-soctherm.o
+tegra-soctherm-$(CONFIG_ARCH_TEGRA_210_SOC) += tegra210-soctherm.o
diff --git a/drivers/thermal/tegra/soctherm-fuse.c b/drivers/thermal/tegra/soctherm-fuse.c
index 931c299ab0e8..29963180c453 100644
--- a/drivers/thermal/tegra/soctherm-fuse.c
+++ b/drivers/thermal/tegra/soctherm-fuse.c
@@ -28,7 +28,18 @@
#define FUSE_TSENSOR_COMMON 0x180

/*
+ * Tegra210: Layout of bits in FUSE_TSENSOR_COMMON:
+ * 3 2 1 0
+ * 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * | BASE_FT | BASE_CP | SHFT_FT | SHIFT_CP |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *
* Tegra12x, etc:
+ * In chips prior to Tegra210, this fuse was incorrectly sized as 26 bits,
+ * and didn't hold SHIFT_CP in [31:26]. Therefore these missing six bits
+ * were obtained via the FUSE_SPARE_REALIGNMENT_REG register [5:0].
+ *
* FUSE_TSENSOR_COMMON:
* 3 2 1 0
* 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0
diff --git a/drivers/thermal/tegra/soctherm.c b/drivers/thermal/tegra/soctherm.c
index 3b1278722df4..b25acae7edb7 100644
--- a/drivers/thermal/tegra/soctherm.c
+++ b/drivers/thermal/tegra/soctherm.c
@@ -148,6 +148,12 @@ static const struct of_device_id tegra_soctherm_of_match[] = {
.data = &tegra124_soctherm,
},
#endif
+#ifdef CONFIG_ARCH_TEGRA_210_SOC
+ {
+ .compatible = "nvidia,tegra210-soctherm",
+ .data = &tegra210_soctherm,
+ },
+#endif
{ },
};
MODULE_DEVICE_TABLE(of, tegra_soctherm_of_match);
diff --git a/drivers/thermal/tegra/soctherm.h b/drivers/thermal/tegra/soctherm.h
index fced834a263e..0486e94e3962 100644
--- a/drivers/thermal/tegra/soctherm.h
+++ b/drivers/thermal/tegra/soctherm.h
@@ -106,5 +106,9 @@ int tegra_calc_tsensor_calib(const struct tegra_tsensor *sensor,
extern const struct tegra_soctherm_soc tegra124_soctherm;
#endif

+#ifdef CONFIG_ARCH_TEGRA_210_SOC
+extern const struct tegra_soctherm_soc tegra210_soctherm;
+#endif
+
#endif

diff --git a/drivers/thermal/tegra/tegra210-soctherm.c b/drivers/thermal/tegra/tegra210-soctherm.c
new file mode 100644
index 000000000000..0e76a89c557d
--- /dev/null
+++ b/drivers/thermal/tegra/tegra210-soctherm.c
@@ -0,0 +1,173 @@
+/*
+ * Copyright (c) 2014-2016, NVIDIA CORPORATION. All rights reserved.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * 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.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <soc/tegra/fuse.h>
+
+#include <dt-bindings/thermal/tegra124-soctherm.h>
+
+#include "soctherm.h"
+
+static const struct tegra_tsensor_configuration tegra210_tsensor_config = {
+ .tall = 16300,
+ .tiddq_en = 1,
+ .ten_count = 1,
+ .tsample = 120,
+ .tsample_ate = 480,
+};
+
+static const struct tegra_tsensor_group tegra210_tsensor_group_cpu = {
+ .id = TEGRA124_SOCTHERM_SENSOR_CPU,
+ .name = "cpu",
+ .sensor_temp_offset = SENSOR_TEMP1,
+ .sensor_temp_mask = SENSOR_TEMP1_CPU_TEMP_MASK,
+ .pdiv = 8,
+ .pdiv_ate = 8,
+ .pdiv_mask = SENSOR_PDIV_CPU_MASK,
+ .pllx_hotspot_diff = 10,
+ .pllx_hotspot_mask = SENSOR_HOTSPOT_CPU_MASK,
+};
+
+static const struct tegra_tsensor_group tegra210_tsensor_group_gpu = {
+ .id = TEGRA124_SOCTHERM_SENSOR_GPU,
+ .name = "gpu",
+ .sensor_temp_offset = SENSOR_TEMP1,
+ .sensor_temp_mask = SENSOR_TEMP1_GPU_TEMP_MASK,
+ .pdiv = 8,
+ .pdiv_ate = 8,
+ .pdiv_mask = SENSOR_PDIV_GPU_MASK,
+ .pllx_hotspot_diff = 5,
+ .pllx_hotspot_mask = SENSOR_HOTSPOT_GPU_MASK,
+};
+
+static const struct tegra_tsensor_group tegra210_tsensor_group_pll = {
+ .id = TEGRA124_SOCTHERM_SENSOR_PLLX,
+ .name = "pll",
+ .sensor_temp_offset = SENSOR_TEMP2,
+ .sensor_temp_mask = SENSOR_TEMP2_PLLX_TEMP_MASK,
+ .pdiv = 8,
+ .pdiv_ate = 8,
+ .pdiv_mask = SENSOR_PDIV_PLLX_MASK,
+};
+
+static const struct tegra_tsensor_group tegra210_tsensor_group_mem = {
+ .id = TEGRA124_SOCTHERM_SENSOR_MEM,
+ .name = "mem",
+ .sensor_temp_offset = SENSOR_TEMP2,
+ .sensor_temp_mask = SENSOR_TEMP2_MEM_TEMP_MASK,
+ .pdiv = 8,
+ .pdiv_ate = 8,
+ .pdiv_mask = SENSOR_PDIV_MEM_MASK,
+ .pllx_hotspot_diff = 0,
+ .pllx_hotspot_mask = SENSOR_HOTSPOT_MEM_MASK,
+};
+
+static const struct tegra_tsensor_group *tegra210_tsensor_groups[] = {
+ &tegra210_tsensor_group_cpu,
+ &tegra210_tsensor_group_gpu,
+ &tegra210_tsensor_group_pll,
+ &tegra210_tsensor_group_mem,
+};
+
+static const struct tegra_tsensor tegra210_tsensors[] = {
+ {
+ .name = "cpu0",
+ .base = 0xc0,
+ .config = &tegra210_tsensor_config,
+ .calib_fuse_offset = 0x098,
+ .fuse_corr_alpha = 1085000,
+ .fuse_corr_beta = 3244200,
+ .group = &tegra210_tsensor_group_cpu,
+ }, {
+ .name = "cpu1",
+ .base = 0xe0,
+ .config = &tegra210_tsensor_config,
+ .calib_fuse_offset = 0x084,
+ .fuse_corr_alpha = 1126200,
+ .fuse_corr_beta = -67500,
+ .group = &tegra210_tsensor_group_cpu,
+ }, {
+ .name = "cpu2",
+ .base = 0x100,
+ .config = &tegra210_tsensor_config,
+ .calib_fuse_offset = 0x088,
+ .fuse_corr_alpha = 1098400,
+ .fuse_corr_beta = 2251100,
+ .group = &tegra210_tsensor_group_cpu,
+ }, {
+ .name = "cpu3",
+ .base = 0x120,
+ .config = &tegra210_tsensor_config,
+ .calib_fuse_offset = 0x12c,
+ .fuse_corr_alpha = 1108000,
+ .fuse_corr_beta = 602700,
+ .group = &tegra210_tsensor_group_cpu,
+ }, {
+ .name = "mem0",
+ .base = 0x140,
+ .config = &tegra210_tsensor_config,
+ .calib_fuse_offset = 0x158,
+ .fuse_corr_alpha = 1069200,
+ .fuse_corr_beta = 3549900,
+ .group = &tegra210_tsensor_group_mem,
+ }, {
+ .name = "mem1",
+ .base = 0x160,
+ .config = &tegra210_tsensor_config,
+ .calib_fuse_offset = 0x15c,
+ .fuse_corr_alpha = 1173700,
+ .fuse_corr_beta = -6263600,
+ .group = &tegra210_tsensor_group_mem,
+ }, {
+ .name = "gpu",
+ .base = 0x180,
+ .config = &tegra210_tsensor_config,
+ .calib_fuse_offset = 0x154,
+ .fuse_corr_alpha = 1074300,
+ .fuse_corr_beta = 2734900,
+ .group = &tegra210_tsensor_group_gpu,
+ }, {
+ .name = "pllx",
+ .base = 0x1a0,
+ .config = &tegra210_tsensor_config,
+ .calib_fuse_offset = 0x160,
+ .fuse_corr_alpha = 1039700,
+ .fuse_corr_beta = 6829100,
+ .group = &tegra210_tsensor_group_pll,
+ },
+};
+
+/*
+ * Mask/shift bits in FUSE_TSENSOR_COMMON and
+ * FUSE_TSENSOR_COMMON, which are described in
+ * tegra_soctherm_fuse.c
+ */
+static const struct tegra_soctherm_fuse tegra210_soctherm_fuse = {
+ .fuse_base_cp_mask = 0x3ff << 11,
+ .fuse_base_cp_shift = 11,
+ .fuse_base_ft_mask = 0x7ff << 21,
+ .fuse_base_ft_shift = 21,
+ .fuse_shift_ft_mask = 0x1f << 6,
+ .fuse_shift_ft_shift = 6,
+ .fuse_spare_realignment = 0,
+};
+
+const struct tegra_soctherm_soc tegra210_soctherm = {
+ .tsensors = tegra210_tsensors,
+ .num_tsensors = ARRAY_SIZE(tegra210_tsensors),
+ .ttgs = tegra210_tsensor_groups,
+ .num_ttgs = ARRAY_SIZE(tegra210_tsensor_groups),
+ .tfuse = &tegra210_soctherm_fuse,
+};
--
1.9.1