28663622cf
Remove init of UART-clock and UART-reset in arch_cpu_init(). Add DEBUG_UART to s5p4418_nanopi2_defconfig. Signed-off-by: Stefan Bosch <stefan_b@posteo.net>
170 lines
4.9 KiB
C
170 lines
4.9 KiB
C
/* 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 CFG_SYS_SDRAM_BASE 0x71000000
|
|
|
|
/*
|
|
* "(0x40000000 - 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 CFG_SYS_SDRAM_SIZE (0xb0000000 - CFG_SYS_SDRAM_BASE)
|
|
|
|
#define BMP_LOAD_ADDR 0x78000000
|
|
|
|
/* kernel load address */
|
|
#define INITRD_START 0x79000000
|
|
#define KERNEL_DTB_ADDR 0x7A000000
|
|
|
|
/*-----------------------------------------------------------------------
|
|
* High Level System Configuration
|
|
*/
|
|
/* decrementer freq: 1ms ticks */
|
|
|
|
/*-----------------------------------------------------------------------
|
|
* System initialize options (board_init_f)
|
|
*/
|
|
/* board_init_f->init_sequence, call arch_cpu_init */
|
|
|
|
/*-----------------------------------------------------------------------
|
|
* serial console configuration
|
|
*/
|
|
|
|
/* 150MHz is the clock rate set by SPL (uart0) */
|
|
#define CFG_PL011_CLOCK 150000000
|
|
|
|
/*-----------------------------------------------------------------------
|
|
* 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
|
|
|
|
/*-----------------------------------------------------------------------
|
|
* VIDEO
|
|
*/
|
|
|
|
#ifdef CONFIG_VIDEO_LOGO
|
|
#ifdef CONFIG_SPLASH_SCREEN
|
|
#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 CFG_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__ */
|