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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>
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@ -37,7 +37,6 @@
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#define A375_UNIT_CONTROL_MASK 0x7
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#define A375_READOUT_INVERT BIT(15)
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#define A375_HW_RESETn BIT(8)
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#define A380_HW_RESET BIT(8)
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/* Legacy bindings */
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#define LEGACY_CONTROL_MEM_LEN 0x4
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@ -52,6 +51,10 @@
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#define CONTROL0_TSEN_RESET BIT(1)
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#define CONTROL0_TSEN_ENABLE BIT(2)
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/* EXT_TSEN refers to the external temperature sensors, out of the AP */
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#define CONTROL1_EXT_TSEN_SW_RESET BIT(7)
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#define CONTROL1_EXT_TSEN_HW_RESETn BIT(8)
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struct armada_thermal_data;
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/* Marvell EBU Thermal Sensor Dev Structure */
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@ -153,12 +156,11 @@ static void armada380_init_sensor(struct platform_device *pdev,
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{
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u32 reg = readl_relaxed(priv->control1);
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/* Reset hardware once */
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if (!(reg & A380_HW_RESET)) {
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reg |= A380_HW_RESET;
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writel(reg, priv->control1);
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msleep(10);
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}
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/* Disable the HW/SW reset */
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reg |= CONTROL1_EXT_TSEN_HW_RESETn;
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reg &= ~CONTROL1_EXT_TSEN_SW_RESET;
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writel(reg, priv->control1);
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msleep(10);
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}
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static void armada_ap806_init_sensor(struct platform_device *pdev,
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@ -277,6 +279,19 @@ static const struct armada_thermal_data armada_ap806_data = {
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.needs_control0 = true,
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};
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static const struct armada_thermal_data armada_cp110_data = {
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.is_valid = armada_is_valid,
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.init_sensor = armada380_init_sensor,
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.is_valid_bit = BIT(10),
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.temp_shift = 0,
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.temp_mask = 0x3ff,
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.coef_b = 1172499100ULL,
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.coef_m = 2000096ULL,
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.coef_div = 4201,
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.inverted = true,
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.needs_control0 = true,
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};
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static const struct of_device_id armada_thermal_id_table[] = {
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{
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.compatible = "marvell,armadaxp-thermal",
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@ -298,6 +313,10 @@ static const struct of_device_id armada_thermal_id_table[] = {
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.compatible = "marvell,armada-ap806-thermal",
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.data = &armada_ap806_data,
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},
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{
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.compatible = "marvell,armada-cp110-thermal",
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.data = &armada_cp110_data,
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},
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{
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/* sentinel */
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},
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