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authorMiquel Raynal <miquel.raynal@free-electrons.com>2017-12-22 17:14:11 +0100
committerEduardo Valentin <edubezval@gmail.com>2018-01-01 13:23:04 -0800
commit8c0b888f6610d0ebbc4bdfb52d2fef9f4a11adfc (patch)
treede5a3978603f37d8d3304467741fa0afcf64c624 /drivers/thermal
parenta9d58a1aa35f4c01a075303b5c7dcde84e7df124 (diff)
thermal: armada: Change sensors trim default value
Errata #132698 highlights an error in the default value of Tc trim. Set this parameter to b'011. Suggested-by: David Sniatkiwicz <davidsn@marvell.com> Signed-off-by: Miquel Raynal <miquel.raynal@free-electrons.com> Reviewed-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.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/thermal/armada_thermal.c b/drivers/thermal/armada_thermal.c
index d426b230e1c5..e6025d215cb5 100644
--- a/drivers/thermal/armada_thermal.c
+++ b/drivers/thermal/armada_thermal.c
@@ -46,6 +46,10 @@
#define CONTROL0_OFFSET 0x0
#define CONTROL1_OFFSET 0x4
+/* Errata fields */
+#define CONTROL0_TSEN_TC_TRIM_MASK 0x7
+#define CONTROL0_TSEN_TC_TRIM_VAL 0x3
+
/* TSEN refers to the temperature sensors within the AP */
#define CONTROL0_TSEN_START BIT(0)
#define CONTROL0_TSEN_RESET BIT(1)
@@ -161,6 +165,15 @@ static void armada380_init_sensor(struct platform_device *pdev,
reg &= ~CONTROL1_EXT_TSEN_SW_RESET;
writel(reg, priv->control1);
msleep(10);
+
+ /* Set Tsen Tc Trim to correct default value (errata #132698) */
+ if (priv->control0) {
+ reg = readl_relaxed(priv->control0);
+ reg &= ~CONTROL0_TSEN_TC_TRIM_MASK;
+ reg |= CONTROL0_TSEN_TC_TRIM_VAL;
+ writel(reg, priv->control0);
+ msleep(10);
+ }
}
static void armada_ap806_init_sensor(struct platform_device *pdev,

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