From: Andrejs Cainikovs <andrejs.cainik...@toradex.com>

Add M4 boot environment functions for reference.

Signed-off-by: Andrejs Cainikovs <andrejs.cainik...@toradex.com>
Signed-off-by: Francesco Dolcini <francesco.dolc...@toradex.com>
---
v2: new patch
---
 include/configs/apalis-imx8.h | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/include/configs/apalis-imx8.h b/include/configs/apalis-imx8.h
index 415a84a2558f..e22f8cc73114 100644
--- a/include/configs/apalis-imx8.h
+++ b/include/configs/apalis-imx8.h
@@ -22,6 +22,15 @@
        "ramdisk_addr_r=0x9d500000\0" \
        "scriptaddr=0x9d480000\0"
 
+/* Boot M4 */
+#define M4_BOOT_ENV \
+       "m4_0_image=m4_0.bin\0" \
+       "m4_1_image=m4_1.bin\0" \
+       "loadm4image_0=load mmc ${mmcdev}:${mmcpart} ${loadaddr} 
${m4_0_image}\0" \
+       "loadm4image_1=load mmc ${mmcdev}:${mmcpart} ${loadaddr} 
${m4_1_image}\0" \
+       "m4boot_0=run loadm4image_0; dcache flush; bootaux ${loadaddr} 0\0" \
+       "m4boot_1=run loadm4image_1; dcache flush; bootaux ${loadaddr} 1\0" \
+
 /* Enable Distro Boot */
 #define BOOT_TARGET_DEVICES(func) \
        func(MMC, mmc, 1) \
@@ -33,6 +42,7 @@
 /* Initial environment variables */
 #define CONFIG_EXTRA_ENV_SETTINGS \
        BOOTENV \
+       M4_BOOT_ENV \
        MEM_LAYOUT_ENV_SETTINGS \
        "boot_script_dhcp=boot.scr\0" \
        "console=ttyLP1\0" \
-- 
2.25.1

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