diff options
| author | Baruch Siach <baruch@tkos.co.il> | 2017-12-22 19:14:09 +0300 |
|---|---|---|
| committer | Eduardo Valentin <edubezval@gmail.com> | 2018-01-02 00:20:40 +0300 |
| commit | ccf8f522d198c0f69f343d6d6c61bcc906458818 (patch) | |
| tree | 8844a266a6ff338d654690a421434130a87d3e70 /drivers/thermal | |
| parent | 2ff127999289a8ed29b2dae3a15f2f484d560463 (diff) | |
| download | linux-ccf8f522d198c0f69f343d6d6c61bcc906458818.tar.xz | |
thermal: armada: Add support for Armada CP110
The CP110 component is integrated in the Armada 8k and 7k lines of
processors.
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
[<miquel.raynal@free-electrons.com>: renamed the register pointers as
well as some definitions related to the new register names and
simplified the init sequence for Armada 380]
Signed-off-by: Miquel Raynal <miquel.raynal@free-electrons.com>
Reviewed-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Tested-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
Diffstat (limited to 'drivers/thermal')
| -rw-r--r-- | drivers/thermal/armada_thermal.c | 33 |
1 files changed, 26 insertions, 7 deletions
diff --git a/drivers/thermal/armada_thermal.c b/drivers/thermal/armada_thermal.c index f35289b1cea9..f2eba2a6f1a5 100644 --- a/drivers/thermal/armada_thermal.c +++ b/drivers/thermal/armada_thermal.c @@ -37,7 +37,6 @@ #define A375_UNIT_CONTROL_MASK 0x7 #define A375_READOUT_INVERT BIT(15) #define A375_HW_RESETn BIT(8) -#define A380_HW_RESET BIT(8) /* Legacy bindings */ #define LEGACY_CONTROL_MEM_LEN 0x4 @@ -52,6 +51,10 @@ #define CONTROL0_TSEN_RESET BIT(1) #define CONTROL0_TSEN_ENABLE BIT(2) +/* EXT_TSEN refers to the external temperature sensors, out of the AP */ +#define CONTROL1_EXT_TSEN_SW_RESET BIT(7) +#define CONTROL1_EXT_TSEN_HW_RESETn BIT(8) + struct armada_thermal_data; /* Marvell EBU Thermal Sensor Dev Structure */ @@ -153,12 +156,11 @@ static void armada380_init_sensor(struct platform_device *pdev, { u32 reg = readl_relaxed(priv->control1); - /* Reset hardware once */ - if (!(reg & A380_HW_RESET)) { - reg |= A380_HW_RESET; - writel(reg, priv->control1); - msleep(10); - } + /* Disable the HW/SW reset */ + reg |= CONTROL1_EXT_TSEN_HW_RESETn; + reg &= ~CONTROL1_EXT_TSEN_SW_RESET; + writel(reg, priv->control1); + msleep(10); } static void armada_ap806_init_sensor(struct platform_device *pdev, @@ -277,6 +279,19 @@ static const struct armada_thermal_data armada_ap806_data = { .needs_control0 = true, }; +static const struct armada_thermal_data armada_cp110_data = { + .is_valid = armada_is_valid, + .init_sensor = armada380_init_sensor, + .is_valid_bit = BIT(10), + .temp_shift = 0, + .temp_mask = 0x3ff, + .coef_b = 1172499100ULL, + .coef_m = 2000096ULL, + .coef_div = 4201, + .inverted = true, + .needs_control0 = true, +}; + static const struct of_device_id armada_thermal_id_table[] = { { .compatible = "marvell,armadaxp-thermal", @@ -299,6 +314,10 @@ static const struct of_device_id armada_thermal_id_table[] = { .data = &armada_ap806_data, }, { + .compatible = "marvell,armada-cp110-thermal", + .data = &armada_cp110_data, + }, + { /* sentinel */ }, }; |