libplatsupport: Add support for imx8mp-evk

The i.MX 8M Plus Evaluation Kit is similar to the other platforms in the i.MX 8M family and shares the same serial and timer peripherals. Signed-off-by: Damon Lee <damon@kry10.com>
seL4 · Jun 12, 2024 · f98dad1 · f98dad1
1 parent 60d4518
commit f98dad1
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Showing 4 changed files with 16 additions and 4 deletions.
diff --git a/libplatsupport/CMakeLists.txt b/libplatsupport/CMakeLists.txt
@@ -105,12 +105,13 @@ if(
     OR KernelPlatformImx7Sabre
     OR KernelPlatformImx8mq-evk
     OR KernelPlatformImx8mm-evk
+    OR KernelPlatformImx8mp-evk
     OR KernelPlatformMaaxboard
 )
     list(APPEND deps src/mach/${LibPlatSupportMach}/serial/serial.c)
 endif()
 
-if(KernelPlatImx8mq OR KernelPlatformImx8mm-evk)
+if(KernelPlatImx8mq OR KernelPlatformImx8mm-evk OR KernelPlatformImx8mp-evk)
     list(APPEND deps src/plat/imx8m/chardev.c)
     # There's no clock driver at the moment, but this is to allow the
     # libethdrivers to build for imx8mq
@@ -132,7 +133,13 @@ add_config_library(platsupport "${configure_string}")
 
 add_library(platsupport EXCLUDE_FROM_ALL ${deps})
 
-if(KernelPlatImx8mq OR KernelPlatformImx8mm-evk)
+if(KernelPlatImx8mq OR KernelPlatformImx8mm-evk OR KernelPlatformImx8mp-evk)
+    if(KernelPlatformImx8mp-evk)
+        # For the imx8mp, the DTS is in a different format compared to those of
+        # the imx8mm and imx8mq, there are some constants in the headers that
+        # point to the proper path
+        target_compile_definitions(platsupport PRIVATE USE_IMX8MP_GPT_PATH)
+    endif()
     target_include_directories(platsupport PUBLIC plat_include/imx8m)
 endif()
 

diff --git a/libplatsupport/mach_include/imx/platsupport/mach/serial.h b/libplatsupport/mach_include/imx/platsupport/mach/serial.h
@@ -23,7 +23,7 @@ enum chardev_id {
     PS_SERIAL3 = IMX_UART4,
     PS_SERIAL4 = IMX_UART5,
 
-#if defined(CONFIG_PLAT_SABRE) || defined(CONFIG_PLAT_IMX8MM_EVK)
+#if defined(CONFIG_PLAT_SABRE) || defined(CONFIG_PLAT_IMX8MM_EVK) || defined(CONFIG_PLAT_IMX8MP_EVK)
 
     PS_SERIAL_DEFAULT = IMX_UART2
 

diff --git a/libplatsupport/plat_include/imx8m/platsupport/plat/gpt_constants.h b/libplatsupport/plat_include/imx8m/platsupport/plat/gpt_constants.h
@@ -6,8 +6,13 @@
 
 #pragma once
 
+#ifdef USE_IMX8MP_GPT_PATH
+#define GPT1_PATH "/soc@0/bus@30000000/timer@302d0000"
+#define GPT2_PATH "/soc@0/bus@30000000/timer@302e0000"
+#else
 #define GPT1_PATH "/gpt@302d0000"
 #define GPT2_PATH "/gpt@302e0000"
+#endif
 
 #define GPT_PRESCALER       (0)
 
diff --git a/libplatsupport/plat_include/imx8m/platsupport/plat/serial.h b/libplatsupport/plat_include/imx8m/platsupport/plat/serial.h
@@ -22,7 +22,7 @@
 
 #define UART_REF_CLK 12096000
 
-#if defined(CONFIG_PLAT_IMX8MM_EVK)
+#if defined(CONFIG_PLAT_IMX8MM_EVK) || defined(CONFIG_PLAT_IMX8MP_EVK)
 #define DEFAULT_SERIAL_PADDR        UART2_PADDR
 #define DEFAULT_SERIAL_INTERRUPT    UART2_IRQ
 #elif defined(CONFIG_PLAT_IMX8MQ_EVK) || defined(CONFIG_PLAT_MAAXBOARD)