diff options
Diffstat (limited to 'target/linux/layerscape/patches-5.4/818-thermal-0004-thermal-qoriq-Update-the-settings-for-TMUv2.patch')
| -rw-r--r-- | target/linux/layerscape/patches-5.4/818-thermal-0004-thermal-qoriq-Update-the-settings-for-TMUv2.patch | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/target/linux/layerscape/patches-5.4/818-thermal-0004-thermal-qoriq-Update-the-settings-for-TMUv2.patch b/target/linux/layerscape/patches-5.4/818-thermal-0004-thermal-qoriq-Update-the-settings-for-TMUv2.patch new file mode 100644 index 0000000000..9534bdc3dd --- /dev/null +++ b/target/linux/layerscape/patches-5.4/818-thermal-0004-thermal-qoriq-Update-the-settings-for-TMUv2.patch @@ -0,0 +1,85 @@ +From da5a7765a20d34508036ba8ed1db87e546abcf4b Mon Sep 17 00:00:00 2001 +From: Yuantian Tang <andy.tang@nxp.com> +Date: Mon, 25 May 2020 17:33:22 +0800 +Subject: [PATCH] thermal: qoriq: Update the settings for TMUv2 + +For TMU v2, TMSAR registers need to be set properly to get the +accurate temperature values. +Also the temperature read needs to be converted to degree Celsius +since it is in degrees Kelvin. + +Signed-off-by: Yuantian Tang <andy.tang@nxp.com> +--- + drivers/thermal/qoriq_thermal.c | 21 +++++++++++++++++++-- + 1 file changed, 19 insertions(+), 2 deletions(-) + +diff --git a/drivers/thermal/qoriq_thermal.c b/drivers/thermal/qoriq_thermal.c +index ba7d6105a..8b371fd3d 100644 +--- a/drivers/thermal/qoriq_thermal.c ++++ b/drivers/thermal/qoriq_thermal.c +@@ -23,6 +23,7 @@ + #define TMTMIR_DEFAULT 0x0000000f + #define TIER_DISABLE 0x0 + #define TEUMR0_V2 0x51009c00 ++#define TMSARA_V2 0xe + #define TMU_VER1 0x1 + #define TMU_VER2 0x2 + +@@ -35,6 +36,13 @@ struct qoriq_tmu_site_regs { + u8 res0[0x8]; + }; + ++struct qoriq_tmu_tmsar { ++ u32 res0; ++ u32 tmsar; ++ u32 res1; ++ u32 res2; ++}; ++ + struct qoriq_tmu_regs_v1 { + u32 tmr; /* Mode Register */ + u32 tsr; /* Status Register */ +@@ -95,7 +103,9 @@ struct qoriq_tmu_regs_v2 { + u32 tscfgr; /* Sensor Configuration Register */ + u8 res6[0x78]; + struct qoriq_tmu_site_regs site[SITES_MAX]; +- u8 res7[0x9f8]; ++ u8 res10[0x100]; ++ struct qoriq_tmu_tmsar tmsar[16]; ++ u8 res7[0x7f8]; + u32 ipbrr0; /* IP Block Revision Register 0 */ + u32 ipbrr1; /* IP Block Revision Register 1 */ + u8 res8[0x300]; +@@ -158,7 +168,10 @@ static int tmu_get_temp(void *p, int *temp) + u32 val; + + val = tmu_read(qdata, &qdata->regs->site[qsensor->id].tritsr); +- *temp = (val & 0xff) * 1000; ++ if (qdata->ver == TMU_VER1) ++ *temp = (val & 0xff) * 1000; ++ else ++ *temp = (val & 0x1ff) * 1000 - 273150; + + return 0; + } +@@ -319,6 +332,8 @@ static int qoriq_tmu_calibration(struct platform_device *pdev) + + static void qoriq_tmu_init_device(struct qoriq_tmu_data *data) + { ++ int i; ++ + /* Disable interrupt, using polling instead */ + tmu_write(data, TIER_DISABLE, &data->regs->tier); + +@@ -328,6 +343,8 @@ static void qoriq_tmu_init_device(struct qoriq_tmu_data *data) + } else { + tmu_write(data, TMTMIR_DEFAULT, &data->regs_v2->tmtmir); + tmu_write(data, TEUMR0_V2, &data->regs_v2->teumr0); ++ for (i = 0; i < 7; i++) ++ tmu_write(data, TMSARA_V2, &data->regs_v2->tmsar[i].tmsar); + } + + /* Disable monitoring */ +-- +2.17.1 + |