BananaPi BPI-M4-Zero: Add KASLR Support

Signed-off-by: Patrick Yavitz <[email protected]>

Author: pyavitz

patch/kernel/archive/sunxi-6.12/dt/sun50i-h618-bananapi-m4.dtsi

@@ -20,6 +20,7 @@
 
 	chosen {
 		stdout-path = "serial0:115200n8";
+		kaslr-seed = <0xfeedbeef 0xc0def00d>;
 	};
 
 	connector {

patch/kernel/archive/sunxi-6.15/dt/sun50i-h618-bananapi-m4.dtsi

@@ -20,6 +20,7 @@
 
 	chosen {
 		stdout-path = "serial0:115200n8";
+		kaslr-seed = <0xfeedbeef 0xc0def00d>;
 	};
 
 	connector {

patch/u-boot/v2025.07/board_bananapim4zero/001-Add-board-BananaPi-BPI-M4-Zero.patch

@@ -338,3 +338,36 @@ index 00000000000..d0442ca9692
 -- 
 2.43.0
 
+From 99cf1c27b0e94fee704f683ba0f338b239de6bdf Mon Sep 17 00:00:00 2001
+From: Patrick Yavitz <[email protected]>
+Date: Sun, 3 Aug 2025 09:13:29 -0400
+Subject: [PATCH] Enable KASLR
+
+Signed-off-by: Patrick Yavitz <[email protected]>
+---
+ configs/bananapi_m4zero_defconfig | 2 ++
+ 1 files changed, 2 insertions(+)
+
+diff --git a/configs/bananapi_m4zero_defconfig b/configs/bananapi_m4zero_defconfig
+index 6d70efd1a50..0c41226db49 100644
+--- a/configs/bananapi_m4zero_defconfig
++++ b/configs/bananapi_m4zero_defconfig
+@@ -17,6 +17,7 @@ CONFIG_DRAM_CLK=792
+ CONFIG_MMC_SUNXI_SLOT_EXTRA=2
+ CONFIG_R_I2C_ENABLE=y
+ # CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
++CONFIG_CMD_KASLRSEED=y
+ CONFIG_SPL_I2C=y
+ CONFIG_SPL_SYS_I2C_LEGACY=y
+ CONFIG_SYS_I2C_MVTWSI=y
+@@ -25,6 +26,7 @@ CONFIG_SYS_I2C_SPEED=400000
+ CONFIG_SUN8I_EMAC=y
+ CONFIG_SUPPORT_EMMC_BOOT=y
+ CONFIG_AXP313_POWER=y
++CONFIG_DM_RNG=y
+ CONFIG_USB_EHCI_HCD=y
+ CONFIG_USB_OHCI_HCD=y
+ CONFIG_USB_MUSB_GADGET=y
+-- 
+2.43.0
+