hackish U-Boot Allwinner H6 in ARMv7/32-bit patch, as a base for the Allwinner V5 port

u_boot_h6_32_v5.patch

commit 17efad455c2cb482f9f950cf6559f713379ce1f1
Author: Andre Przywara <[email protected]>
Date:   Thu Apr 21 01:20:49 2022 +0100

    naive H6 32-bit support (use lindenis_v5_defconfig)

diff --git a/arch/arm/include/asm/arch-sunxi/clock_sun50i_h6.h b/arch/arm/include/asm/arch-sunxi/clock_sun50i_h6.h
index 37df4410eaa..d821eafa85e 100644
--- a/arch/arm/include/asm/arch-sunxi/clock_sun50i_h6.h
+++ b/arch/arm/include/asm/arch-sunxi/clock_sun50i_h6.h
@@ -263,7 +263,7 @@ struct sunxi_ccm_reg {
 #define CCM_CPU_AXI_AXI_MASK		0x3
 #define CCM_CPU_AXI_DEFAULT_FACTORS	0x301
 
-#ifdef CONFIG_MACH_SUN50I_H6
+#if defined(CONFIG_MACH_SUN50I_H6) || defined(CONFIG_MACH_SUN8I_V5)
 #define CCM_PLL6_DEFAULT		0xa0006300
 
 /* psi_ahb1_ahb2 bit field */
diff --git a/arch/arm/include/asm/arch-sunxi/cpu_sun50i_h6.h b/arch/arm/include/asm/arch-sunxi/cpu_sun50i_h6.h
index d9cf8ae0428..488301c9d0a 100644
--- a/arch/arm/include/asm/arch-sunxi/cpu_sun50i_h6.h
+++ b/arch/arm/include/asm/arch-sunxi/cpu_sun50i_h6.h
@@ -28,7 +28,7 @@
 #define SUNXI_GIC400_BASE		0x03020000
 #define SUNXI_IOMMU_BASE		0x030F0000
 
-#ifdef CONFIG_MACH_SUN50I_H6
+#if defined(CONFIG_MACH_SUN50I_H6) || defined(CONFIG_MACH_SUN8I_V5)
 #define SUNXI_DRAM_COM_BASE		0x04002000
 #define SUNXI_DRAM_CTL0_BASE		0x04003000
 #define SUNXI_DRAM_PHY0_BASE		0x04005000
diff --git a/arch/arm/include/asm/arch-sunxi/dram.h b/arch/arm/include/asm/arch-sunxi/dram.h
index 682daae6b1a..fe303014901 100644
--- a/arch/arm/include/asm/arch-sunxi/dram.h
+++ b/arch/arm/include/asm/arch-sunxi/dram.h
@@ -27,7 +27,7 @@
 #include <asm/arch/dram_sunxi_dw.h>
 #elif defined(CONFIG_MACH_SUN9I)
 #include <asm/arch/dram_sun9i.h>
-#elif defined(CONFIG_MACH_SUN50I_H6)
+#elif defined(CONFIG_MACH_SUN50I_H6) || defined(CONFIG_MACH_SUN8I_V5)
 #include <asm/arch/dram_sun50i_h6.h>
 #elif defined(CONFIG_MACH_SUN50I_H616)
 #include <asm/arch/dram_sun50i_h616.h>
diff --git a/arch/arm/mach-sunxi/Kconfig b/arch/arm/mach-sunxi/Kconfig
index 1f43b253248..c686512dae1 100644
--- a/arch/arm/mach-sunxi/Kconfig
+++ b/arch/arm/mach-sunxi/Kconfig
@@ -134,8 +134,8 @@ config SUNXI_GEN_SUN6I
 
 config SUN50I_GEN_H6
 	bool
-	select FIT
-	select SPL_LOAD_FIT
+	select FIT if ARM64
+	select SPL_LOAD_FIT if ARM64
 	select MMC_SUNXI_HAS_NEW_MODE
 	select SUPPORT_SPL
 	---help---
@@ -359,6 +359,13 @@ config MACH_SUN50I_H6
 	select DRAM_SUN50I_H6
 	select SUN50I_GEN_H6
 
+config MACH_SUN8I_V5
+	bool "sun8i (Allwinner V5)"
+	select CPU_V7A
+	select PHY_SUN4I_USB
+	select DRAM_SUN50I_H6
+	select SUN50I_GEN_H6
+
 config MACH_SUN50I_H616
 	bool "sun50i (Allwinner H616)"
 	select ARM64
@@ -475,6 +482,7 @@ config DRAM_CLK
 	default 672 if MACH_SUN50I
 	default 744 if MACH_SUN50I_H6
 	default 720 if MACH_SUN50I_H616
+	default 744 if MACH_SUN8I_V5
 	---help---
 	Set the dram clock speed, valid range 240 - 480 (prior to sun9i),
 	must be a multiple of 24. For the sun9i (A80), the tested values
@@ -496,7 +504,7 @@ config DRAM_ZQ
 		       MACH_SUN8I_A23 || MACH_SUN8I_A33 || MACH_SUN8I_A83T
 	default 127 if MACH_SUN7I
 	default 14779 if MACH_SUN8I_V3S
-	default 3881979 if MACH_SUNXI_H3_H5 || MACH_SUN8I_R40 || MACH_SUN50I_H6
+	default 3881979 if MACH_SUNXI_H3_H5 || MACH_SUN8I_R40 || MACH_SUN50I_H6 || MACH_SUN8I_V5
 	default 4145117 if MACH_SUN9I
 	default 3881915 if MACH_SUN50I
 	---help---
@@ -615,6 +623,7 @@ config SYS_CONFIG_NAME
 	default "sun50i" if MACH_SUN50I
 	default "sun50i" if MACH_SUN50I_H6
 	default "sun50i" if MACH_SUN50I_H616
+	default "sun50i" if MACH_SUN8I_V5
 
 config SYS_BOARD
 	default "sunxi"
diff --git a/arch/arm/mach-sunxi/board.c b/arch/arm/mach-sunxi/board.c
index 173e946465d..a821dc3bb6b 100644
--- a/arch/arm/mach-sunxi/board.c
+++ b/arch/arm/mach-sunxi/board.c
@@ -126,7 +126,7 @@ static int gpio_init(void)
 	sunxi_gpio_set_cfgpin(SUNXI_GPB(8), SUN50I_GPB_UART0);
 	sunxi_gpio_set_cfgpin(SUNXI_GPB(9), SUN50I_GPB_UART0);
 	sunxi_gpio_set_pull(SUNXI_GPB(9), SUNXI_GPIO_PULL_UP);
-#elif CONFIG_CONS_INDEX == 1 && defined(CONFIG_MACH_SUN50I_H6)
+#elif CONFIG_CONS_INDEX == 1 && defined(CONFIG_SUN50I_GEN_H6)
 	sunxi_gpio_set_cfgpin(SUNXI_GPH(0), SUN50I_H6_GPH_UART0);
 	sunxi_gpio_set_cfgpin(SUNXI_GPH(1), SUN50I_H6_GPH_UART0);
 	sunxi_gpio_set_pull(SUNXI_GPH(1), SUNXI_GPIO_PULL_UP);
diff --git a/arch/arm/mach-sunxi/cpu_info.c b/arch/arm/mach-sunxi/cpu_info.c
index 7eef178859b..a8e09b94ece 100644
--- a/arch/arm/mach-sunxi/cpu_info.c
+++ b/arch/arm/mach-sunxi/cpu_info.c
@@ -103,6 +103,8 @@ int print_cpuinfo(void)
 	puts("CPU:   Allwinner H6 (SUN50I)\n");
 #elif defined CONFIG_MACH_SUN50I_H616
 	puts("CPU:   Allwinner H616 (SUN50I)\n");
+#elif defined CONFIG_MACH_SUN8I_V5
+	puts("CPU:   Allwinner V5 (SUN8I)\n");
 #else
 #warning Please update cpu_info.c with correct CPU information
 	puts("CPU:   SUNXI Family\n");
diff --git a/configs/lindenis_v5_defconfig b/configs/lindenis_v5_defconfig
new file mode 100644
index 00000000000..77b108f0c34
--- /dev/null
+++ b/configs/lindenis_v5_defconfig
@@ -0,0 +1,13 @@
+CONFIG_ARM=y
+CONFIG_ARCH_SUNXI=y
+CONFIG_DEFAULT_DEVICE_TREE="sun50i-h6-pine-h64"
+CONFIG_SPL=y
+CONFIG_MACH_SUN8I_V5=y
+CONFIG_SUNXI_DRAM_H6_LPDDR3=y
+CONFIG_MMC0_CD_PIN="PF6"
+CONFIG_SPL_SPI_SUNXI=y
+# CONFIG_PSCI_RESET is not set
+# CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
+CONFIG_SUN8I_EMAC=y
+CONFIG_USB_EHCI_HCD=y
+CONFIG_USB_OHCI_HCD=y