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build/patch/u-boot/v2025.07/board_bananapim4zero/001-Add-board-BananaPi-BPI-M4-Zero.patch
Patrick Yavitz e408731b30 BananaPi BPI-M4-Zero: Add KASLR Support 
Signed-off-by: Patrick Yavitz <pyavitz@gmail.com>
2025-08-03 15:44:33 -04:00

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From c77d5ad2ba71d49534c3c643675c94bb09f345a2 Mon Sep 17 00:00:00 2001
From: Patrick Yavitz <pyavitz@gmail.com>
Date: Sun, 27 Jul 2025 07:11:47 -0400
Subject: [PATCH] Add board BananaPi BPI-M4-Zero
Signed-off-by: Patrick Yavitz <pyavitz@gmail.com>
---
configs/bananapi_m4zero_defconfig | 30 +++
.../sun50i-h618-bananapi-m4-zero.dts | 74 +++++++
.../allwinner/sun50i-h618-bananapi-m4.dtsi | 200 ++++++++++++++++++
3 files changed, 304 insertions(+)
create mode 100644 configs/bananapi_m4zero_defconfig
create mode 100644 dts/upstream/src/arm64/allwinner/sun50i-h618-bananapi-m4-zero.dts
create mode 100644 dts/upstream/src/arm64/allwinner/sun50i-h618-bananapi-m4.dtsi
diff --git a/configs/bananapi_m4zero_defconfig b/configs/bananapi_m4zero_defconfig
new file mode 100644
index 00000000000..6d70efd1a50
--- /dev/null
+++ b/configs/bananapi_m4zero_defconfig
@@ -0,0 +1,30 @@
+CONFIG_OF_UPSTREAM=y
+CONFIG_ARM=y
+CONFIG_ARCH_SUNXI=y
+CONFIG_DEFAULT_DEVICE_TREE="allwinner/sun50i-h618-bananapi-m4-zero"
+CONFIG_SPL=y
+CONFIG_DRAM_SUNXI_DX_ODT=0x07070707
+CONFIG_DRAM_SUNXI_DX_DRI=0x0e0e0e0e
+CONFIG_DRAM_SUNXI_CA_DRI=0x0e0e
+CONFIG_DRAM_SUNXI_ODT_EN=0xaaaaeeee
+CONFIG_DRAM_SUNXI_TPR6=0x48808080
+CONFIG_DRAM_SUNXI_TPR10=0x402f6663
+CONFIG_DRAM_SUNXI_TPR11=0x26262524
+CONFIG_DRAM_SUNXI_TPR12=0x100f100f
+CONFIG_MACH_SUN50I_H616=y
+CONFIG_SUNXI_DRAM_H616_LPDDR4=y
+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_SPL_I2C=y
+CONFIG_SPL_SYS_I2C_LEGACY=y
+CONFIG_SYS_I2C_MVTWSI=y
+CONFIG_SYS_I2C_SLAVE=0x7f
+CONFIG_SYS_I2C_SPEED=400000
+CONFIG_SUN8I_EMAC=y
+CONFIG_SUPPORT_EMMC_BOOT=y
+CONFIG_AXP313_POWER=y
+CONFIG_USB_EHCI_HCD=y
+CONFIG_USB_OHCI_HCD=y
+CONFIG_USB_MUSB_GADGET=y
diff --git a/dts/upstream/src/arm64/allwinner/sun50i-h618-bananapi-m4-zero.dts b/dts/upstream/src/arm64/allwinner/sun50i-h618-bananapi-m4-zero.dts
new file mode 100644
index 00000000000..5d868eaaef9
--- /dev/null
+++ b/dts/upstream/src/arm64/allwinner/sun50i-h618-bananapi-m4-zero.dts
@@ -0,0 +1,74 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (c) 2025 Patrick Yavitz <pyavitz@gmail.com>
+ */
+
+/dts-v1/;
+
+#include "sun50i-h618-bananapi-m4.dtsi"
+
+/ {
+ model = "BananaPi BPI-M4-Zero";
+ compatible = "sinovoip,bpi-m4-zero", "allwinner,sun50i-h618";
+
+ aliases {
+ serial5 = &uart5;
+ };
+
+ leds {
+ compatible = "gpio-leds";
+
+ led-0 {
+ color = <LED_COLOR_ID_RED>;
+ function = LED_FUNCTION_STATUS;
+ gpios = <&pio 2 12 GPIO_ACTIVE_HIGH>; /* PC12 */
+ linux,default-trigger = "heartbeat";
+ };
+ };
+};
+
+/* Connected to an on-board RTL8821CU USB WiFi chip. */
+&ehci1 {
+ status = "disabled";
+};
+
+&ehci3 {
+ status = "okay";
+};
+
+/* SDIO */
+&mmc1 {
+ status = "disabled";
+ bus-width = <4>;
+ max-frequency = <100000000>;
+
+ non-removable;
+ disable-wp;
+
+ /* WiFi firmware requires power to be kept while in suspend */
+ keep-power-in-suspend;
+
+ mmc-pwrseq = <&wifi_pwrseq>;
+
+ cd-gpios = <&pio 6 15 GPIO_ACTIVE_HIGH>; /* PG15 */
+ vmmc-supply = <&reg_vcc3v3>;
+
+ sdio: wifi@1 {
+ reg = <1>;
+ compatible = "brcm,bcm4329-fmac";
+ };
+};
+
+&ohci3 {
+ status = "okay";
+};
+
+&usbotg {
+ status = "okay";
+ dr_mode = "peripheral";
+};
+
+&usbphy {
+ status = "okay";
+ usb1_vbus-supply = <&reg_usb_vbus>;
+};
diff --git a/dts/upstream/src/arm64/allwinner/sun50i-h618-bananapi-m4.dtsi b/dts/upstream/src/arm64/allwinner/sun50i-h618-bananapi-m4.dtsi
new file mode 100644
index 00000000000..d0442ca9692
--- /dev/null
+++ b/dts/upstream/src/arm64/allwinner/sun50i-h618-bananapi-m4.dtsi
@@ -0,0 +1,200 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (c) 2025 Patrick Yavitz <pyavitz@gmail.com>
+ */
+
+/dts-v1/;
+
+#include "sun50i-h616.dtsi"
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/linux-event-codes.h>
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <dt-bindings/leds/common.h>
+
+/ {
+ aliases {
+ serial0 = &uart0;
+ };
+
+ chosen {
+ stdout-path = "serial0:115200n8";
+ };
+
+ reg_usb_vbus: regulator-usb-vbus {
+ /* Separate discrete regulator for the USB ports */
+ compatible = "regulator-fixed";
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ regulator-name = "usb-vbus";
+ vin-supply = <&reg_vcc5v>;
+ };
+
+ reg_vcc5v: regulator-vcc5v {
+ /* Board wide 5V supply directly from the USB-C socket */
+ compatible = "regulator-fixed";
+ regulator-always-on;
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ regulator-name = "vcc-5v";
+ };
+
+ reg_vcc3v3: regulator-vcc3v3 {
+ compatible = "regulator-fixed";
+ regulator-always-on;
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-name = "vcc-3v3";
+ vin-supply = <&reg_vcc5v>;
+ };
+
+ reg_vcc1v8: regulator-vcc1v8 {
+ compatible = "regulator-fixed";
+ regulator-always-on;
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-name = "vcc-1v8";
+ vin-supply = <&reg_vcc3v3>;
+ };
+
+ wifi_pwrseq: wifi-pwrseq {
+ compatible = "mmc-pwrseq-simple";
+ clocks = <&rtc CLK_OSC32K_FANOUT>;
+ clock-names = "ext_clock";
+ pinctrl-0 = <&x32clk_fanout_pin>;
+ pinctrl-names = "default";
+ post-power-on-delay-ms = <200>;
+ reset-gpios = <&pio 6 18 GPIO_ACTIVE_LOW>; /* PG18 */
+ };
+};
+
+&cpu0 {
+ cpu-supply = <&reg_dcdc2>;
+};
+
+/* SD card */
+&mmc0 {
+ status = "okay";
+ bus-width = <4>;
+ max-frequency = <50000000>;
+
+ disable-wp;
+
+ cd-gpios = <&pio 5 6 GPIO_ACTIVE_HIGH>; /* PF6 */
+ vmmc-supply = <&reg_vcc3v3>;
+};
+
+/* eMMC */
+&mmc2 {
+ status = "okay";
+ bus-width = <8>;
+ cap-mmc-hw-reset;
+ mmc-hs200-1_8v;
+
+ non-removable;
+ disable-wp;
+
+ vmmc-supply = <&reg_vcc3v3>;
+ vqmmc-supply = <&reg_vcc1v8>;
+};
+
+&pio {
+ vcc-pc-supply = <&reg_aldo1>;
+ vcc-pf-supply = <&reg_dldo1>;
+ vcc-pg-supply = <&reg_dldo1>;
+ vcc-ph-supply = <&reg_dldo1>;
+ vcc-pi-supply = <&reg_dldo1>;
+
+ /* Add UART Pins */
+ uart4_pi_pins: uart4-pi-pins {
+ pins = "PI13", "PI14";
+ function = "uart4";
+ };
+
+ uart4_pi_rts_cts_pins: uart4-pi-rts-cts-pins {
+ pins = "PI15", "PI16";
+ function = "uart4";
+ };
+
+ uart5_ph_pins: uart5-ph-pins {
+ pins = "PH2", "PH3";
+ function = "uart5";
+ };
+};
+
+&r_i2c {
+ status = "okay";
+
+ axp313: pmic@36 {
+ compatible = "x-powers,axp313a";
+ reg = <0x36>;
+ #interrupt-cells = <1>;
+ interrupt-controller;
+ interrupt-parent = <&pio>;
+
+ vin1-supply = <&reg_vcc5v>;
+ vin2-supply = <&reg_vcc5v>;
+ vin3-supply = <&reg_vcc5v>;
+
+ regulators {
+ reg_aldo1: aldo1 {
+ regulator-always-on;
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-name = "vcc-1v8-pll";
+ };
+
+ reg_dldo1: dldo1 {
+ regulator-always-on;
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-name = "vcc-3v3-io";
+ };
+
+ reg_dcdc1: dcdc1 {
+ regulator-always-on;
+ regulator-min-microvolt = <810000>;
+ regulator-max-microvolt = <990000>;
+ regulator-name = "vdd-gpu-sys";
+ };
+
+ reg_dcdc2: dcdc2 {
+ regulator-always-on;
+ regulator-min-microvolt = <810000>;
+ regulator-max-microvolt = <1100000>;
+ regulator-name = "vdd-cpu";
+ };
+
+ reg_dcdc3: dcdc3 {
+ regulator-always-on;
+ regulator-min-microvolt = <1100000>;
+ regulator-max-microvolt = <1100000>;
+ regulator-name = "vdd-dram";
+ };
+ };
+ };
+};
+
+&uart0 {
+ status = "okay";
+ pinctrl-0 = <&uart0_ph_pins>;
+ pinctrl-names = "default";
+};
+
+&uart1 {
+ status = "disabled";
+ pinctrl-0 = <&uart1_pins>;
+ pinctrl-names = "default";
+};
+
+&uart4 {
+ status = "disabled";
+ pinctrl-0 = <&uart4_pi_pins>;
+ pinctrl-names = "default";
+};
+
+&uart5 {
+ status = "okay";
+ pinctrl-0 = <&uart5_ph_pins>;
+ pinctrl-names = "default";
+};
--
2.43.0
From 99cf1c27b0e94fee704f683ba0f338b239de6bdf Mon Sep 17 00:00:00 2001
From: Patrick Yavitz <pyavitz@gmail.com>
Date: Sun, 3 Aug 2025 09:13:29 -0400
Subject: [PATCH] Enable KASLR
Signed-off-by: Patrick Yavitz <pyavitz@gmail.com>
---
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
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