stm32mp1: Add remoteproc support for m4 coprocessor

Alignment with kernel patch proposal for binding:

[PATCH v4 0/8] stm32 m4 remoteproc on STM32MP157c
https://lkml.org/lkml/2019/5/14/159

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>

diff --git a/arch/arm/dts/stm32mp157a-dk1.dts b/arch/arm/dts/stm32mp157a-dk1.dts
index ba612a5..c210acc 100644 (file)
--- a/arch/arm/dts/stm32mp157a-dk1.dts
+++ b/arch/arm/dts/stm32mp157a-dk1.dts
@@ -307,6 +307,12 @@
        };
 };
 
+&m4_rproc {
+       mboxes = <&ipcc 0>, <&ipcc 1>, <&ipcc 2>;
+       mbox-names = "vq0", "vq1", "shutdown";
+       status = "okay";
+};
+
 &pwr {
        pwr-regulators {
                vdd-supply = <&vdd>;

diff --git a/arch/arm/dts/stm32mp157c-ed1.dts b/arch/arm/dts/stm32mp157c-ed1.dts
index 3e8b7b5..1d9cc73 100644 (file)
--- a/arch/arm/dts/stm32mp157c-ed1.dts
+++ b/arch/arm/dts/stm32mp157c-ed1.dts
@@ -217,6 +217,12 @@
        status = "okay";
 };
 
+&m4_rproc {
+       mboxes = <&ipcc 0>, <&ipcc 1>, <&ipcc 2>;
+       mbox-names = "vq0", "vq1", "shutdown";
+       status = "okay";
+};
+
 &pwr {
        pwr-regulators {
                vdd-supply = <&vdd>;

diff --git a/arch/arm/dts/stm32mp157c.dtsi b/arch/arm/dts/stm32mp157c.dtsi
index bcd8c1a..a6045dd 100644 (file)
--- a/arch/arm/dts/stm32mp157c.dtsi
+++ b/arch/arm/dts/stm32mp157c.dtsi
@@ -1543,4 +1543,24 @@
                        status = "disabled";
                };
        };
+
+       mlahb {
+               compatible = "simple-bus";
+               #address-cells = <1>;
+               #size-cells = <1>;
+               dma-ranges = <0x00000000 0x38000000 0x10000>,
+                            <0x10000000 0x10000000 0x60000>,
+                            <0x30000000 0x30000000 0x60000>;
+
+               m4_rproc: m4@10000000 {
+                       compatible = "st,stm32mp1-m4";
+                       reg = <0x10000000 0x40000>,
+                             <0x30000000 0x40000>,
+                             <0x38000000 0x10000>;
+                       resets = <&rcc MCU_R>;
+                       st,syscfg-holdboot = <&rcc 0x10C 0x1>;
+                       st,syscfg-tz = <&rcc 0x000 0x1>;
+                       status = "disabled";
+               };
+       };
 };

diff --git a/configs/stm32mp15_basic_defconfig b/configs/stm32mp15_basic_defconfig
index cf3988d..09785b5 100644 (file)
--- a/configs/stm32mp15_basic_defconfig
+++ b/configs/stm32mp15_basic_defconfig
@@ -34,6 +34,7 @@ CONFIG_CMD_GPIO=y
 CONFIG_CMD_GPT=y
 CONFIG_CMD_I2C=y
 CONFIG_CMD_MMC=y
+CONFIG_CMD_REMOTEPROC=y
 CONFIG_CMD_SF=y
 CONFIG_CMD_SPI=y
 CONFIG_CMD_USB=y

diff --git a/configs/stm32mp15_optee_defconfig b/configs/stm32mp15_optee_defconfig
index e5b9be7..177cbc7 100644 (file)
--- a/configs/stm32mp15_optee_defconfig
+++ b/configs/stm32mp15_optee_defconfig
@@ -23,6 +23,7 @@ CONFIG_CMD_GPIO=y
 CONFIG_CMD_GPT=y
 CONFIG_CMD_I2C=y
 CONFIG_CMD_MMC=y
+CONFIG_CMD_REMOTEPROC=y
 CONFIG_CMD_SF=y
 CONFIG_CMD_SPI=y
 CONFIG_CMD_USB=y

diff --git a/configs/stm32mp15_trusted_defconfig b/configs/stm32mp15_trusted_defconfig
index 2d9be04..71ad115 100644 (file)
--- a/configs/stm32mp15_trusted_defconfig
+++ b/configs/stm32mp15_trusted_defconfig
@@ -22,6 +22,7 @@ CONFIG_CMD_GPIO=y
 CONFIG_CMD_GPT=y
 CONFIG_CMD_I2C=y
 CONFIG_CMD_MMC=y
+CONFIG_CMD_REMOTEPROC=y
 CONFIG_CMD_SF=y
 CONFIG_CMD_SPI=y
 CONFIG_CMD_USB=y

diff --git a/drivers/remoteproc/stm32_copro.c b/drivers/remoteproc/stm32_copro.c
index de3b972..ad941f6 100644 (file)
--- a/drivers/remoteproc/stm32_copro.c
+++ b/drivers/remoteproc/stm32_copro.c
@@ -243,7 +243,7 @@ static const struct dm_rproc_ops stm32_copro_ops = {
 };
 
 static const struct udevice_id stm32_copro_ids[] = {
-       {.compatible = "st,stm32mp1-rproc"},
+       {.compatible = "st,stm32mp1-m4"},
        {}
 };