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Subject[PATCH] thermal: samsung: Add TMU support for Exynos3250 SoC
Date
This patch add registers, bit fields and compatible strings for Exynos3250 TMU
(Thermal Management Unit). Exynos3250 uses the Cortex-A7 dual cores and has
a target speed of 1.0 GHz.

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
[Add MUX address setting bits by Jonghwa Lee]
Signed-off-by: Jonghwa Lee <jonghwa3.lee@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
---
.../devicetree/bindings/thermal/exynos-thermal.txt | 1 +
drivers/thermal/samsung/exynos_tmu.c | 7 +-
drivers/thermal/samsung/exynos_tmu.h | 3 +-
drivers/thermal/samsung/exynos_tmu_data.c | 89 ++++++++++++++++++++++
drivers/thermal/samsung/exynos_tmu_data.h | 7 ++
5 files changed, 105 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/thermal/exynos-thermal.txt b/Documentation/devicetree/bindings/thermal/exynos-thermal.txt
index c949092..ae738f5 100644
--- a/Documentation/devicetree/bindings/thermal/exynos-thermal.txt
+++ b/Documentation/devicetree/bindings/thermal/exynos-thermal.txt
@@ -3,6 +3,7 @@
** Required properties:

- compatible : One of the following:
+ "samsung,exynos3250-tmu"
"samsung,exynos4412-tmu"
"samsung,exynos4210-tmu"
"samsung,exynos5250-tmu"
diff --git a/drivers/thermal/samsung/exynos_tmu.c b/drivers/thermal/samsung/exynos_tmu.c
index 2412090..97ebc1e 100644
--- a/drivers/thermal/samsung/exynos_tmu.c
+++ b/drivers/thermal/samsung/exynos_tmu.c
@@ -501,6 +501,10 @@ static irqreturn_t exynos_tmu_irq(int irq, void *id)

static const struct of_device_id exynos_tmu_match[] = {
{
+ .compatible = "samsung,exynos3250-tmu",
+ .data = (void *)EXYNOS3250_TMU_DRV_DATA,
+ },
+ {
.compatible = "samsung,exynos4210-tmu",
.data = (void *)EXYNOS4210_TMU_DRV_DATA,
},
@@ -675,7 +679,8 @@ static int exynos_tmu_probe(struct platform_device *pdev)
goto err_clk_sec;
}

- if (pdata->type == SOC_ARCH_EXYNOS4210 ||
+ if (pdata->type == SOC_ARCH_EXYNOS3250 ||
+ pdata->type == SOC_ARCH_EXYNOS4210 ||
pdata->type == SOC_ARCH_EXYNOS4412 ||
pdata->type == SOC_ARCH_EXYNOS5250 ||
pdata->type == SOC_ARCH_EXYNOS5260 ||
diff --git a/drivers/thermal/samsung/exynos_tmu.h b/drivers/thermal/samsung/exynos_tmu.h
index edd08cf..1b4a644 100644
--- a/drivers/thermal/samsung/exynos_tmu.h
+++ b/drivers/thermal/samsung/exynos_tmu.h
@@ -40,7 +40,8 @@ enum calibration_mode {
};

enum soc_type {
- SOC_ARCH_EXYNOS4210 = 1,
+ SOC_ARCH_EXYNOS3250 = 1,
+ SOC_ARCH_EXYNOS4210,
SOC_ARCH_EXYNOS4412,
SOC_ARCH_EXYNOS5250,
SOC_ARCH_EXYNOS5260,
diff --git a/drivers/thermal/samsung/exynos_tmu_data.c b/drivers/thermal/samsung/exynos_tmu_data.c
index c1d81dc..aa8e0de 100644
--- a/drivers/thermal/samsung/exynos_tmu_data.c
+++ b/drivers/thermal/samsung/exynos_tmu_data.c
@@ -90,6 +90,95 @@ struct exynos_tmu_init_data const exynos4210_default_tmu_data = {
};
#endif

+#if defined(CONFIG_SOC_EXYNOS3250)
+static const struct exynos_tmu_registers exynos3250_tmu_registers = {
+ .triminfo_data = EXYNOS_TMU_REG_TRIMINFO,
+ .triminfo_25_shift = EXYNOS_TRIMINFO_25_SHIFT,
+ .triminfo_85_shift = EXYNOS_TRIMINFO_85_SHIFT,
+ .tmu_ctrl = EXYNOS_TMU_REG_CONTROL,
+ .test_mux_addr_shift = EXYNOS4412_MUX_ADDR_SHIFT,
+ .buf_vref_sel_shift = EXYNOS_TMU_REF_VOLTAGE_SHIFT,
+ .buf_vref_sel_mask = EXYNOS_TMU_REF_VOLTAGE_MASK,
+ .therm_trip_mode_shift = EXYNOS_TMU_TRIP_MODE_SHIFT,
+ .therm_trip_mode_mask = EXYNOS_TMU_TRIP_MODE_MASK,
+ .therm_trip_en_shift = EXYNOS_TMU_THERM_TRIP_EN_SHIFT,
+ .buf_slope_sel_shift = EXYNOS_TMU_BUF_SLOPE_SEL_SHIFT,
+ .buf_slope_sel_mask = EXYNOS_TMU_BUF_SLOPE_SEL_MASK,
+ .core_en_shift = EXYNOS_TMU_CORE_EN_SHIFT,
+ .tmu_status = EXYNOS_TMU_REG_STATUS,
+ .tmu_cur_temp = EXYNOS_TMU_REG_CURRENT_TEMP,
+ .threshold_th0 = EXYNOS_THD_TEMP_RISE,
+ .threshold_th1 = EXYNOS_THD_TEMP_FALL,
+ .tmu_inten = EXYNOS_TMU_REG_INTEN,
+ .inten_rise0_shift = EXYNOS_TMU_INTEN_RISE0_SHIFT,
+ .inten_rise1_shift = EXYNOS_TMU_INTEN_RISE1_SHIFT,
+ .inten_rise2_shift = EXYNOS_TMU_INTEN_RISE2_SHIFT,
+ .inten_fall0_shift = EXYNOS_TMU_INTEN_FALL0_SHIFT,
+ .tmu_intstat = EXYNOS_TMU_REG_INTSTAT,
+ .tmu_intclear = EXYNOS_TMU_REG_INTCLEAR,
+ .intclr_fall_shift = EXYNOS_TMU_CLEAR_FALL_INT_SHIFT,
+ .intclr_rise_shift = EXYNOS_TMU_RISE_INT_SHIFT,
+ .intclr_rise_mask = EXYNOS_TMU_RISE_INT_MASK,
+ .intclr_fall_mask = EXYNOS_TMU_FALL_INT_MASK,
+ .emul_con = EXYNOS_EMUL_CON,
+ .emul_temp_shift = EXYNOS_EMUL_DATA_SHIFT,
+ .emul_time_shift = EXYNOS_EMUL_TIME_SHIFT,
+ .emul_time_mask = EXYNOS_EMUL_TIME_MASK,
+};
+
+#define EXYNOS3250_TMU_DATA \
+ .threshold_falling = 10, \
+ .trigger_levels[0] = 70, \
+ .trigger_levels[1] = 95, \
+ .trigger_levels[2] = 110, \
+ .trigger_levels[3] = 120, \
+ .trigger_enable[0] = true, \
+ .trigger_enable[1] = true, \
+ .trigger_enable[2] = true, \
+ .trigger_enable[3] = false, \
+ .trigger_type[0] = THROTTLE_ACTIVE, \
+ .trigger_type[1] = THROTTLE_ACTIVE, \
+ .trigger_type[2] = SW_TRIP, \
+ .trigger_type[3] = HW_TRIP, \
+ .max_trigger_level = 4, \
+ .gain = 8, \
+ .reference_voltage = 16, \
+ .noise_cancel_mode = 4, \
+ .cal_type = TYPE_TWO_POINT_TRIMMING, \
+ .efuse_value = 55, \
+ .min_efuse_value = 40, \
+ .max_efuse_value = 100, \
+ .first_point_trim = 25, \
+ .second_point_trim = 85, \
+ .default_temp_offset = 50, \
+ .freq_tab[0] = { \
+ .freq_clip_max = 800 * 1000, \
+ .temp_level = 70, \
+ }, \
+ .freq_tab[1] = { \
+ .freq_clip_max = 400 * 1000, \
+ .temp_level = 95, \
+ }, \
+ .freq_tab_count = 2, \
+ .registers = &exynos3250_tmu_registers, \
+ .features = (TMU_SUPPORT_EMULATION | \
+ TMU_SUPPORT_FALLING_TRIP | TMU_SUPPORT_READY_STATUS | \
+ TMU_SUPPORT_EMUL_TIME)
+#endif
+
+#if defined(CONFIG_SOC_EXYNOS3250)
+struct exynos_tmu_init_data const exynos3250_default_tmu_data = {
+ .tmu_data = {
+ {
+ EXYNOS3250_TMU_DATA,
+ .type = SOC_ARCH_EXYNOS3250,
+ .test_mux = EXYNOS4412_MUX_ADDR_VALUE,
+ },
+ },
+ .tmu_count = 1,
+};
+#endif
+
#if defined(CONFIG_SOC_EXYNOS4412) || defined(CONFIG_SOC_EXYNOS5250)
static const struct exynos_tmu_registers exynos4412_tmu_registers = {
.triminfo_data = EXYNOS_TMU_REG_TRIMINFO,
diff --git a/drivers/thermal/samsung/exynos_tmu_data.h b/drivers/thermal/samsung/exynos_tmu_data.h
index d268981..f0979e5 100644
--- a/drivers/thermal/samsung/exynos_tmu_data.h
+++ b/drivers/thermal/samsung/exynos_tmu_data.h
@@ -148,6 +148,13 @@
#define EXYNOS5440_TMU_TH_RISE4_SHIFT 24
#define EXYNOS5440_EFUSE_SWAP_OFFSET 8

+#if defined(CONFIG_SOC_EXYNOS3250)
+extern struct exynos_tmu_init_data const exynos3250_default_tmu_data;
+#define EXYNOS3250_TMU_DRV_DATA (&exynos3250_default_tmu_data)
+#else
+#define EXYNOS3250_TMU_DRV_DATA (NULL)
+#endif
+
#if defined(CONFIG_CPU_EXYNOS4210)
extern struct exynos_tmu_init_data const exynos4210_default_tmu_data;
#define EXYNOS4210_TMU_DRV_DATA (&exynos4210_default_tmu_data)
--
1.8.0


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