arm: add (default) config for nanopi2 board

Changes in relation to FriendlyARM's U-Boot nanopi2-v2016.01:
- Configuration changed, mainly several "CONFIG_..." moved from
  s5p4418_nanopi2.h to s5p4418_nanopi2_defconfig and USB related
  configs removed because USB is not supported yet.
- s5p4418_nanopi2.h: "CONFIG_" removed from several s5p4418/nanopi2
  specific defines because the appropriate values do not need to be
  configurable.
- pinctrl is supported now, therefore "CONFIG_PINCTRL=y" added to
  s5p4418_nanopi2_defconfig.

Signed-off-by: Stefan Bosch <stefan_b@posteo.net>

1 files changed, 257 insertions, 0 deletions

diff --git a/include/configs/s5p4418_nanopi2.h b/include/configs/s5p4418_nanopi2.h
new file mode 100644
index 00000000000..da5b29a46ef
--- /dev/null
+++ b/include/configs/s5p4418_nanopi2.h
@@ -0,0 +1,257 @@
+/* SPDX-License-Identifier: GPL-2.0+
+ *
+ * Copyright (C) Guangzhou FriendlyARM Computer Tech. Co., Ltd.
+ * (http://www.friendlyarm.com)
+ *
+ * (C) Copyright 2016 Nexell
+ * Hyejung Kwon <cjscld15@nexell.co.kr>
+ *
+ * Copyright (C) 2019  Stefan Bosch <stefan_b@posteo.net>
+ */
+
+#ifndef __CONFIG_H__
+#define __CONFIG_H__
+
+#include <linux/sizes.h>
+#include <asm/arch/nexell.h>
+
+/*-----------------------------------------------------------------------
+ *  System memory Configuration
+ */
+#define CONFIG_SYS_INIT_SP_ADDR		CONFIG_SYS_TEXT_BASE
+#define CONFIG_SYS_MONITOR_BASE		CONFIG_SYS_TEXT_BASE
+#define CONFIG_SYS_MEM_SIZE		0x40000000
+#define CONFIG_SYS_SDRAM_BASE		0x71000000
+
+/*
+ * "(CONFIG_SYS_MEM_SIZE - CONFIG_SYS_RESERVE_MEM_SIZE)" has been used in
+ * u-boot nanopi2-v2016.01.
+ * This is not working anymore because boot_fdt_add_mem_rsv_regions() in
+ * common/image-fdt.c has been extended:
+ * Also reserved-memory sections are marked as unusable.
+ *
+ * In friendlyArm Ubuntu 16.04 source arch/arm/boot/dts/s5p4418.dtsi:
+ *        reserved-memory {
+ *            #address-cells = <1>;
+ *            #size-cells = <1>;
+ *            ranges;
+ *
+ *            secure_memory@b0000000 {
+ *                reg = <0xB0000000 0x1000000>;
+ *                nop-map;
+ *            };
+ *        };
+ *
+ * arch_lmb_reserve() of arch/arm/lib/bootm.c:
+ *     "Allocate space for command line and board info - ... below the current
+ *      stack pointer."
+ *      --> Memory allocated would overlap with "secure_memory@b0000000"
+ *      --> lmb_add_region(rgn, base==0xb0000000, size==0x1000000) fails,
+ *      boot output:
+ *        ...
+ *        Kernel image @ 0x71080000 [ 0x000000 - 0x60e628 ]
+ *        ## Flattened Device Tree blob at 7a000000
+ *           Booting using the fdt blob at 0x7a000000
+ *        ERROR: reserving fdt memory region failed (addr=b0000000 size=1000000)
+ *           Using Device Tree in place at 7a000000, end 7a00fbf0
+ *
+ *        Starting kernel ...
+ *        ...
+ */
+#define CONFIG_SYS_SDRAM_SIZE		(0xb0000000 - CONFIG_SYS_SDRAM_BASE)
+
+#define CONFIG_SYS_MALLOC_LEN		(32 * 1024 * 1024)
+
+#define BMP_LOAD_ADDR			0x78000000
+
+/* kernel load address */
+#define CONFIG_SYS_LOAD_ADDR		0x71080000
+#define INITRD_START			0x79000000
+#define KERNEL_DTB_ADDR			0x7A000000
+
+/*-----------------------------------------------------------------------
+ *  High Level System Configuration
+ */
+/* Not used: not need IRQ/FIQ stuff */
+#undef  CONFIG_USE_IRQ
+/* decrementer freq: 1ms ticks */
+#define CONFIG_SYS_HZ			1000
+
+/*-----------------------------------------------------------------------
+ *  System initialize options (board_init_f)
+ */
+/* board_init_f->init_sequence, call arch_cpu_init */
+#define CONFIG_ARCH_CPU_INIT
+
+/*-----------------------------------------------------------------------
+ * Miscellaneous configurable options
+ */
+#ifdef CONFIG_SYS_PROMPT
+#undef CONFIG_SYS_PROMPT
+/* Monitor Command Prompt */
+#define CONFIG_SYS_PROMPT		"nanopi2# "
+#endif
+
+/* Console I/O Buffer Size */
+#define CONFIG_SYS_CBSIZE		1024
+/* Print Buffer Size */
+#define CONFIG_SYS_PBSIZE		(CONFIG_SYS_CBSIZE +             \
+					 sizeof(CONFIG_SYS_PROMPT) + 16)
+/* max number of command args */
+#define CONFIG_SYS_MAXARGS		16
+/* Boot Argument Buffer Size */
+#define CONFIG_SYS_BARGSIZE		CONFIG_SYS_CBSIZE
+
+/*-----------------------------------------------------------------------
+ * allow to overwrite serial and ethaddr
+ */
+#define CONFIG_ENV_OVERWRITE
+
+#ifdef CONFIG_HUSH_PARSER
+#define CONFIG_SYS_PROMPT_HUSH_PS2	"> "
+#endif
+
+/*-----------------------------------------------------------------------
+ * Etc Command definition
+ */
+#undef CONFIG_BOOTM_NETBSD
+#undef CONFIG_BOOTM_RTEMS
+
+/*-----------------------------------------------------------------------
+ * serial console configuration
+ */
+#define CONFIG_PL011_CLOCK		50000000
+#define CONFIG_PL01x_PORTS		{(void *)PHY_BASEADDR_UART0, \
+					 (void *)PHY_BASEADDR_UART1, \
+					 (void *)PHY_BASEADDR_UART2, \
+					 (void *)PHY_BASEADDR_UART3}
+#define CONFIG_SYS_BAUDRATE_TABLE	{ 9600, 19200, 38400, 57600, 115200 }
+
+/*-----------------------------------------------------------------------
+ * PLL
+ */
+#define CONFIG_SYS_PLLFIN		24000000UL
+
+/*-----------------------------------------------------------------------
+ * Timer
+ */
+#define CONFIG_TIMER_SYS_TICK_CH	0
+
+/*-----------------------------------------------------------------------
+ * BACKLIGHT
+ */
+#ifndef CONFIG_S5P4418_ONEWIRE
+#ifdef CONFIG_PWM_NX
+/* fallback to pwm */
+#define BACKLIGHT_CH		0
+#define BACKLIGHT_DIV		0
+#define BACKLIGHT_INV		0
+#define BACKLIGHT_DUTY		50
+#define BACKLIGHT_HZ		1000
+#endif
+#endif
+
+/*-----------------------------------------------------------------------
+ * SD/MMC
+ */
+#if defined(CONFIG_MMC)
+/* eMMC = 0, SD-card = 2 */
+#define CONFIG_SYS_MMC_DEV		2
+#define CONFIG_SYS_MMC_ENV_DEV		CONFIG_SYS_MMC_DEV
+#endif
+
+/*-----------------------------------------------------------------------
+ * Default environment organization
+ */
+#if !defined(CONFIG_ENV_IS_IN_MMC) && !defined(CONFIG_ENV_IS_IN_NAND) && \
+	!defined(CONFIG_ENV_IS_IN_FLASH) && !defined(CONFIG_ENV_IS_IN_EEPROM)
+	/* default: CONFIG_ENV_IS_NOWHERE */
+	#define CONFIG_ENV_IS_NOWHERE
+	#define CONFIG_ENV_OFFSET	1024
+	#define CONFIG_ENV_SIZE		(4 * 1024)	/* env size */
+#endif
+
+/*-----------------------------------------------------------------------
+ * VIDEO
+ */
+
+#define CONFIG_VIDEO_LOGO
+
+#define CONFIG_SPLASH_SCREEN
+
+#ifdef CONFIG_VIDEO_LOGO
+
+#ifdef CONFIG_DM_VIDEO
+#define CONFIG_BMP_24BPP
+#endif
+
+#ifdef CONFIG_SPLASH_SCREEN
+#define CONFIG_SPLASH_SOURCE		1
+#define CONFIG_SPLASH_SCREEN_ALIGN	1
+#define SPLASH_FILE			logo.bmp
+#endif
+
+#endif
+
+/*-----------------------------------------------------------------------
+ * ENV
+ */
+#define BLOADER_MMC						\
+	"ext4load mmc ${rootdev}:${bootpart} "
+
+#ifdef CONFIG_OF_BOARD_SETUP
+#define EXTRA_ENV_DTB_RESERVE					\
+	"dtb_reserve="						\
+	"if test -n \"$dtb_addr\"; then fdt addr $dtb_addr; fi\0"
+#else
+#define EXTRA_ENV_DTB_RESERVE					\
+	"dtb_reserve="						\
+	"if test -n \"$fb_addr\"; then "			\
+	  "fdt addr $dtb_addr;"					\
+	  "fdt resize;"						\
+	  "fdt mk /reserved-memory display_reserved;"		\
+	  "fdt set /reserved-memory/display_reserved "		\
+	    "reg <$fb_addr 0x800000>;"				\
+	"fi;\0"
+#endif
+
+#ifdef CONFIG_SPLASH_SCREEN
+#define EXTRA_ENV_BOOT_LOGO					\
+	"splashimage=" __stringify(BMP_LOAD_ADDR)"\0"		\
+	"splashfile=" __stringify(SPLASH_FILE)"\0"		\
+	"splashpos=m,m\0"					\
+	"fb_addr=\0"						\
+	EXTRA_ENV_DTB_RESERVE
+#else
+	#define EXTRA_ENV_BOOT_LOGO  EXTRA_ENV_DTB_RESERVE
+#endif
+
+#define CONFIG_EXTRA_ENV_SETTINGS				\
+	"fdt_high=0xffffffff\0"					\
+	"initrd_high=0xffffffff\0"				\
+	"rootdev=" __stringify(CONFIG_ROOT_DEV) "\0"		\
+	"rootpart=" __stringify(CONFIG_ROOT_PART) "\0"		\
+	"bootpart=" __stringify(CONFIG_BOOT_PART) "\0"		\
+	"kernel=zImage\0"					\
+	"loadaddr=" __stringify(CONFIG_SYS_LOAD_ADDR) "\0"	\
+	"dtb_name=s5p4418-nanopi2-rev01.dtb\0"			\
+	"dtb_addr=" __stringify(KERNEL_DTB_ADDR) "\0"		\
+	"initrd_name=ramdisk.img\0"				\
+	"initrd_addr=" __stringify(INITRD_START) "\0"		\
+	"initrd_size=0x600000\0"				\
+	"load_dtb="						\
+		BLOADER_MMC "${dtb_addr} ${dtb_name}; "		\
+		"run dtb_reserve\0"				\
+	"load_kernel="						\
+		BLOADER_MMC "${loadaddr} ${kernel}\0"		\
+	"load_initrd="						\
+		BLOADER_MMC "${initrd_addr} ${initrd_name}; "	\
+		"setenv initrd_size 0x${filesize}\0"		\
+	"mmcboot="						\
+		"run load_kernel; run load_initrd; run load_dtb; "	\
+		"bootz ${loadaddr} ${initrd_addr}:${initrd_size} "	\
+		  "${dtb_addr}\0"				\
+	"bootcmd=run mmcboot\0"					\
+	EXTRA_ENV_BOOT_LOGO
+
+#endif /* __CONFIG_H__ */