sunxi: add basic V3s support

Currently a working SPL for V3s can be built now.

The U-Boot main binary still cannot work.

Signed-off-by: Icenowy Zheng <icenowy@aosc.xyz>

arch/arm/include/asm/arch-sunxi/gpio.h

@@ -161,6 +161,7 @@ enum sunxi_gpio_number {
 #define SUN8I_GPB_UART2		2
 #define SUN8I_A33_GPB_UART0	3
 #define SUN8I_A83T_GPB_UART0	2
+#define SUN8I_V3S_GPB_UART0	3
 #define SUN50I_GPB_UART0	4
 
 #define SUNXI_GPC_NAND		2

arch/arm/mach-sunxi/board.c

@@ -110,6 +110,10 @@ static int gpio_init(void)
 	sunxi_gpio_set_cfgpin(SUNXI_GPB(9), SUN8I_A83T_GPB_UART0);
 	sunxi_gpio_set_cfgpin(SUNXI_GPB(10), SUN8I_A83T_GPB_UART0);
 	sunxi_gpio_set_pull(SUNXI_GPB(10), SUNXI_GPIO_PULL_UP);
+#elif CONFIG_CONS_INDEX == 1 && defined(CONFIG_MACH_SUN8I_V3S)
+	sunxi_gpio_set_cfgpin(SUNXI_GPB(8), SUN8I_V3S_GPB_UART0);
+	sunxi_gpio_set_cfgpin(SUNXI_GPB(9), SUN8I_V3S_GPB_UART0);
+	sunxi_gpio_set_pull(SUNXI_GPB(9), SUNXI_GPIO_PULL_UP);
 #elif CONFIG_CONS_INDEX == 1 && defined(CONFIG_MACH_SUN9I)
 	sunxi_gpio_set_cfgpin(SUNXI_GPH(12), SUN9I_GPH_UART0);
 	sunxi_gpio_set_cfgpin(SUNXI_GPH(13), SUN9I_GPH_UART0);
@@ -180,10 +184,11 @@ void s_init(void)
 	/* No H3 BSP, boot0 seems to not modify SUNXI_SRAMC_BASE + 0x44 */
 #endif
 
-#if defined CONFIG_MACH_SUN6I || \
+#if (defined CONFIG_MACH_SUN6I || \
     defined CONFIG_MACH_SUN7I || \
     defined CONFIG_MACH_SUN8I || \
-    defined CONFIG_MACH_SUN9I
+    defined CONFIG_MACH_SUN9I) && \
+    !defined CONFIG_MACH_SUN8I_V3S
 	/* Enable SMP mode for CPU0, by setting bit 6 of Auxiliary Ctl reg */
 	asm volatile(
 		"mrc p15, 0, r0, c1, c0, 1\n"

arch/arm/mach-sunxi/cpu_info.c

@@ -87,6 +87,8 @@ int print_cpuinfo(void)
 	printf("CPU:   Allwinner A83T (SUN8I %04x)\n", sunxi_get_sram_id());
 #elif defined CONFIG_MACH_SUN8I_H3
 	printf("CPU:   Allwinner H3 (SUN8I %04x)\n", sunxi_get_sram_id());
+#elif defined CONFIG_MACH_SUN8I_V3S
+	printf("CPU:   Allwinner V3s (SUN8I %04x)\n", sunxi_get_sram_id());
 #elif defined CONFIG_MACH_SUN9I
 	puts("CPU:   Allwinner A80 (SUN9I)\n");
 #elif defined CONFIG_MACH_SUN50I

board/sunxi/Kconfig

@@ -122,6 +122,17 @@ config MACH_SUN8I_H3
 	select SUNXI_H3_DW_DRAM
 	select ARMV7_BOOT_SEC_DEFAULT if OLD_SUNXI_KERNEL_COMPAT
 
+config MACH_SUN8I_V3S
+	bool "sun8i (Allwinner V3s)"
+	select CPU_V7
+	select CPU_V7_HAS_NONSEC
+	select CPU_V7_HAS_VIRT
+	select SUNXI_GEN_SUN6I
+	select SUPPORT_SPL
+	select SUNXI_H3_DW_DRAM
+	select SUNXI_H3_DRAM_DDR2
+	select ARMV7_BOOT_SEC_DEFAULT if OLD_SUNXI_KERNEL_COMPAT
+
 config MACH_SUN9I
 	bool "sun9i (Allwinner A80)"
 	select CPU_V7
@@ -138,7 +149,7 @@ endchoice
 # The sun8i SoCs share a lot, this helps to avoid a lot of "if A23 || A33"
 config MACH_SUN8I
 	bool
-	default y if MACH_SUN8I_A23 || MACH_SUN8I_A33 || MACH_SUN8I_H3 || MACH_SUN8I_A83T
+	default y if MACH_SUN8I_A23 || MACH_SUN8I_A33 || MACH_SUN8I_H3 || MACH_SUN8I_A83T || MACH_SUN8I_V3S
 
 config DRAM_TYPE
 	int "sunxi dram type"

include/configs/sun8i.h

@@ -21,6 +21,8 @@
 	#define CONFIG_SUNXI_USB_PHYS	4
 #elif defined CONFIG_MACH_SUN8I_A83T
 	#define CONFIG_SUNXI_USB_PHYS	3
+#elif defined CONFIG_MACH_SUN8I_V3S
+	#define CONFIG_SUNXI_USB_PHYS	1
 #else
 	#define CONFIG_SUNXI_USB_PHYS	2
 #endif