[PATCH v2 10/17] board: cssi: add support for reading temperature

Christophe Leroy
2024-04-15T06:09:40Z

All CSSI boards have an LM74 chip as temperature sensor.

Enable it.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
---
arch/powerpc/dts/cmpc885.dts | 12 +++++++++++-
arch/powerpc/dts/cmpcpro.dts | 12 +++++++++++-
arch/powerpc/dts/mcr3000.dts | 6 ++++++
configs/CMPC885_defconfig | 3 +++
configs/CMPCPRO_defconfig | 3 +++
configs/MCR3000_defconfig | 3 +++
6 files changed, 37 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/dts/cmpc885.dts b/arch/powerpc/dts/cmpc885.dts
index 9a33e7e77c..454ceb91ca 100644
--- a/arch/powerpc/dts/cmpc885.dts
+++ b/arch/powerpc/dts/cmpc885.dts
@@ -85,12 +85,22 @@
#address-cells = <1>;
#size-cells = <0>;
compatible = "fsl,mpc8xx-spi";
- gpios = <&CPM1_PIO_B 21 1>; /* /EEPROM_CS ACTIVE_LOW */
+ gpios = <&CPM1_PIO_B 21 1 /* /EEPROM_CS ACTIVE_LOW */
+ &CPM1_PIO_B 23 1 /* Temperature mother board */
+ &CPM1_PIO_B 14 1>; /* Temperature CPU board */

eeprom@0 {
reg = <0>;
compatible = "atmel,at25", "cs,eeprom";
};
+ temp@1 {
+ reg = <1>;
+ compatible = "ti,lm74";
+ };
+ temp@2 {
+ reg = <2>;
+ compatible = "ti,lm74";
+ };
};
};
};
diff --git a/arch/powerpc/dts/cmpcpro.dts b/arch/powerpc/dts/cmpcpro.dts
index 78f8a9f4d3..1dfa864ebb 100644
--- a/arch/powerpc/dts/cmpcpro.dts
+++ b/arch/powerpc/dts/cmpcpro.dts
@@ -140,12 +140,22 @@
compatible = "fsl,mpc832x-spi";
reg = <0x4c0 0x40>;
mode = "cpu";
- gpios = <&qe_pio_d 3 1>;
+ gpios = <&qe_pio_d 3 1
+ &qe_pio_c 5 1 /* TEMP mother board */
+ &qe_pio_c 3 1>; /* TEMP CPU board */
clock-frequency = <0>;
eeprom@0 {
reg = <0>;
compatible = "atmel,at25", "cs,eeprom";
};
+ temp@1 {
+ reg = <1>;
+ compatible = "ti,lm74";
+ };
+ temp@2 {
+ reg = <2>;
+ compatible = "ti,lm74";
+ };
};
eth0: ucc@3000 {
device_type = "network";
diff --git a/arch/powerpc/dts/mcr3000.dts b/arch/powerpc/dts/mcr3000.dts
index edcd8358d0..f678951e22 100644
--- a/arch/powerpc/dts/mcr3000.dts
+++ b/arch/powerpc/dts/mcr3000.dts
@@ -33,6 +33,12 @@
#size-cells = <0>;
cell-index = <0>;
compatible = "fsl,mpc8xx-spi";
+ gpios = <&csspi 2 0>;
+
+ temp@0 {
+ reg = <0>;
+ compatible = "ti,lm74";
+ };
};
};

diff --git a/configs/CMPC885_defconfig b/configs/CMPC885_defconfig
index bbe8d5be7e..11c24f72a8 100644
--- a/configs/CMPC885_defconfig
+++ b/configs/CMPC885_defconfig
@@ -50,6 +50,7 @@ CONFIG_CMD_ASKENV=y
# CONFIG_CMD_LOADS is not set
CONFIG_CMD_MTD=y
CONFIG_CMD_NAND=y
+CONFIG_CMD_TEMPERATURE=y
CONFIG_CMD_DHCP=y
CONFIG_CMD_MII=y
CONFIG_MII_INIT=y
@@ -107,6 +108,8 @@ CONFIG_DM_SERIAL=y
CONFIG_SPI=y
CONFIG_DM_SPI=y
CONFIG_MPC8XX_SPI=y
+CONFIG_DM_THERMAL=y
+CONFIG_TI_LM74_THERMAL=y
CONFIG_WDT=y
CONFIG_WDT_MPC8xxx_BME=y
# CONFIG_REGEX is not set
diff --git a/configs/CMPCPRO_defconfig b/configs/CMPCPRO_defconfig
index cefed63f24..f8f5c9fd86 100644
--- a/configs/CMPCPRO_defconfig
+++ b/configs/CMPCPRO_defconfig
@@ -134,6 +134,7 @@ CONFIG_CMD_ASKENV=y
# CONFIG_CMD_LOADS is not set
CONFIG_CMD_MTD=y
CONFIG_CMD_NAND=y
+CONFIG_CMD_TEMPERATURE=y
CONFIG_CMD_DHCP=y
CONFIG_BOOTP_BOOTFILESIZE=y
CONFIG_CMD_MII=y
@@ -197,6 +198,8 @@ CONFIG_DM_SPI=y
CONFIG_MPC8XXX_SPI=y
CONFIG_SYSRESET=y
CONFIG_SYSRESET_MPC83XX=y
+CONFIG_DM_THERMAL=y
+CONFIG_TI_LM74_THERMAL=y
CONFIG_WDT=y
CONFIG_WDT_MPC8xxx=y
# CONFIG_REGEX is not set
diff --git a/configs/MCR3000_defconfig b/configs/MCR3000_defconfig
index ce34c2aa88..f2eac2c544 100644
--- a/configs/MCR3000_defconfig
+++ b/configs/MCR3000_defconfig
@@ -47,6 +47,7 @@ CONFIG_CMD_ASKENV=y
# CONFIG_CMD_LOADS is not set
CONFIG_CMD_MTD=y
CONFIG_CMD_NAND=y
+CONFIG_CMD_TEMPERATURE=y
# CONFIG_CMD_ECHO is not set
# CONFIG_CMD_ITEST is not set
# CONFIG_CMD_SOURCE is not set
@@ -107,6 +108,8 @@ CONFIG_DM_SERIAL=y
CONFIG_SPI=y
CONFIG_DM_SPI=y
CONFIG_MPC8XX_SPI=y
+CONFIG_DM_THERMAL=y
+CONFIG_TI_LM74_THERMAL=y
CONFIG_WDT=y
CONFIG_WDT_MPC8xxx_BME=y
CONFIG_LZMA=y
--
2.43.0