开发环境：win7 64位 + Ubuntu16.04 64位
开发板：tiny4412ADK + S700 + 4GB eMMC + 1G DDR3
工具链：友善之臂提供的 arm-linux-gnueabihf- (gcc version 6.3.0) //低版本的工具编译不了最新的uboot
要移植的u-boot版本：u-boot-2019-01
git仓库地址：https://github.com/songchong11/tiny4412-uboot-2019.git
1.移植
采用最新的uboot-2019-01，它其实对exynos4412已经有了较好的支持。
在board/samsung下有很多版型可以给我们参考：origen、odroid、trats、trats2等。但是只有origen支持配置SPL，适合tiny4412，其他三个不适合tiny4412，以odroid为例，这个配置最后是编译出一个镜像u-boot-dtb.bin，没有spl，结合exynos4412的启动，即便把u-boot-dtb.bin的前14k强制裁出来作为BL2，在BL2代码中的board_init_f中调用的一些函数的相对地址（相对于spl的起始地址，即0x02023400）已经超过24KB，甚至超过16KB， 我们知道，BL2是在iRAM中运行，并且地址空间最多16KB，因此会导致问题。
下面开始移植:
修改顶层Makefile，指定编译器和芯片架构为ARM
diff --git a/Makefile b/Makefile
index 6aa0896..94906d1 100644
--- a/Makefile
+++ b/Makefile
@@ -243,7 +243,9 @@ export HOSTARCH HOSTOS
ifeq ($(HOSTARCH),$(ARCH))
CROSS_COMPILE ?=
endif
-
+ARCH = arm
+CROSS_COMPILE = arm-linux-gnueabihf-
KCONFIG_CONFIG ?= .config
export KCONFIG_CONFIG
@@ -906,8 +908,8 @@ cmd_pad_cat = $(cmd_objcopy) && $(append) || rm -f $@
cfg: u-boot.cfg拷贝exynos441-origen.dts文件为exynos4412-tiny4412.dts,并修改Makefile
diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index dda4e59..a71d08d 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -12,7 +12,8 @@ dtb-$(CONFIG_EXYNOS4) += exynos4210-origen.dtb \
exynos4210-universal_c210.dtb \
exynos4210-trats.dtb \
exynos4412-trats2.dtb \
- exynos4412-odroid.dtb
+ exynos4412-tiny4412.dtb
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---------------------------------
新增exynos4412-tiny4412.dts并修改它
diff --git a/arch/arm/dts/exynos4412-tiny4412.dts b/arch/arm/dts/exynos4412-tiny4412.dts
new file mode 100755
index 0000000..898a6a5
--- /dev/null
+++ b/arch/arm/dts/exynos4412-tiny4412.dts
@@ -0,0 +1,287 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Odroid-U3/X2 board device tree source
+ *
+ * Copyright (c) 2014 Samsung Electronics Co., Ltd.
+ * http://www.samsung.com
+ */
+
+/dts-v1/;
+#include "exynos4412.dtsi"
+
+/ {
+ model = "FriendlyARM TINY4412 board based on Exynos4412";
+ compatible = "friendlyarm,tiny4412", "samsung,exynos4412", "samsung,exynos4";
+
+ chosen {
+ stdout-path = "serial0";
+ bootargs ="";
+ };
+ aliases {
+ serial0 = "/serial@13800000";
+ console = "/serial@13800000";
+ //mmc0 = &mshc_0;
+ //mmc1 = &sdhci2;
+ mmc0 = "/sdhci@12530000";
+ mmc1 = "/dwmmc@12550000";
+ };
+
+ serial0:serial@13810000 {
+ status = "okay";
+ };
+
+ ehci@12580000 {
+ compatible = "samsung,exynos-ehci";
+ reg = <0x12580000 0x100>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ phy {
+ compatible = "samsung,exynos-usb-phy";
+ reg = <0x125B0000 0x100>;
+ };
+ };
+ sdhci@12510000 {
+ compatible = "samsung,exynos4412-sdhci";
+ status = "disabled";
+ };
+
+ sdhci@12520000 {
+ compatible = "samsung,exynos4412-sdhci";
+ status = "disabled";
+ };
+
+ sdhci@12530000 {
+ compatible = "samsung,exynos4412-sdhci";
+ samsung,bus-width = <4>;
+ samsung,timing = <1 2 3>;
+ cd-gpios = <&gpk2 2 0>;
+ };
+
+ sdhci@12540000 {
+ compatible = "samsung,exynos4412-sdhci";
+ status = "disabled";
+ };
+ dwmmc@12550000 {
+ samsung,bus-width = <8>;
+ samsung,timing = <2 1 0>;
+ samsung,removable = <0>;
+ fifoth_val = <0x203f0040>;
+ bus_hz = <400000000>;
+ div = <0x3>;
+ index = <4>;
+ };
+ emmc-reset {
+ compatible = "samsung,emmc-reset";
+ reset-gpio = <&gpk1 2 0>;
+ };
+};
+
+&sdhci2 {
+ samsung,bus-width = <4>;
+ samsung,timing = <1 2 3>;
+ cd-gpios = <&gpk2 2 0>;
+ status = "okay";
+};
+
+&mshc_0 {
+ samsung,bus-width = <8>;
+ samsung,timing = <2 1 0>;
+ samsung,removable = <0>;
+ fifoth_val = <0x203f0040>;
+ bus_hz = <400000000>;
+ div = <0x3>;
+ index = <4>;
+ status = "okay";
+};增加tiny4412 machine ID
diff --git a/arch/arm/include/asm/mach-types.h b/arch/arm/include/asm/mach-types.h
index 9f82efe..e8caba0 100644
--- a/arch/arm/include/asm/mach-types.h
+++ b/arch/arm/include/asm/mach-types.h
@@ -3403,6 +3403,7 @@
#define MACH_TYPE_MONCH 3453
#define MACH_TYPE_CURACAO 3454
#define MACH_TYPE_ORIGEN 3455
+#define MACH_TYPE_TINY4412 4608
#define MACH_TYPE_EPC10 3456
#define MACH_TYPE_SGH_I740 3457
#define MACH_TYPE_TUNA 3458
修改arch/arm/mach-exynos/Kconfig文件，在执行make menuconfig的时候能够看到我们的修改
diff --git a/arch/arm/mach-exynos/Kconfig b/arch/arm/mach-exynos/Kconfig
old mode 100644
new mode 100755
index ed04369..1735381
--- a/arch/arm/mach-exynos/Kconfig
+++ b/arch/arm/mach-exynos/Kconfig
@@ -59,6 +59,10 @@ config TARGET_S5PC210_UNIVERSAL
config TARGET_ORIGEN
bool "Exynos4412 Origen board"
select SUPPORT_SPL
+
+config TARGET_TINY4412
+ bool "Exynos4412 Tiny4412 board"
+ select SUPPORT_SPL
config TARGET_TRATS2
bool "Exynos4412 Trat2 board"
@@ -156,6 +160,7 @@ source "board/samsung/smdkv310/Kconfig"
source "board/samsung/trats/Kconfig"
source "board/samsung/universal_c210/Kconfig"
source "board/samsung/origen/Kconfig"
+source "board/samsung/tiny4412/Kconfig"
source "board/samsung/trats2/Kconfig"
source "board/samsung/odroid/Kconfig"
source "board/samsung/arndale/Kconfig"修改/arch/arm/mach-exynos/Makefile
diff --git a/arch/arm/mach-exynos/Makefile b/arch/arm/mach-exynos/Makefile
index e895c13..8597e08 100644
--- a/arch/arm/mach-exynos/Makefile
+++ b/arch/arm/mach-exynos/Makefile
@@ -12,7 +12,10 @@ obj-$(CONFIG_EXYNOS5420) += sec_boot.o
ifdef CONFIG_SPL_BUILD
obj-$(CONFIG_EXYNOS5) += clock_init_exynos5.o
obj-$(CONFIG_EXYNOS5) += dmc_common.o dmc_init_ddr3.o
-obj-$(CONFIG_EXYNOS4210)+= dmc_init_exynos4.o clock_init_exynos4.o
+#obj-$(CONFIG_EXYNOS4210)+= dmc_init_exynos4.o clock_init_exynos4.o
+ifneq (,$(filter y, $(CONFIG_EXYNOS4210)$(CONFIG_TINY4412)))
+obj-y += dmc_init_exynos4.o clock_init_exynos4.o
obj-y += spl_boot.o tzpc.o
obj-y += lowlevel_init.o
endif
+endif修改时钟寄存器，初始化时钟
diff --git a/arch/arm/mach-exynos/clock_init_exynos4.c b/arch/arm/mach-exynos/clock_init_exynos4.c
old mode 100644
new mode 100755
index 584e4ba..fda1837
--- a/arch/arm/mach-exynos/clock_init_exynos4.c
+++ b/arch/arm/mach-exynos/clock_init_exynos4.c
@@ -38,42 +38,39 @@
*/
void system_clock_init(void)
{
- struct exynos4_clock *clk =
- (struct exynos4_clock *)samsung_get_base_clock();
+ struct exynos4x12_clock *clk =
+ (struct exynos4x12_clock *)samsung_get_base_clock();
- writel(CLK_SRC_CPU_VAL, &clk->src_cpu);
+ /* APLL= 1400 MHz MPLL=800 MHz */
+
+ writel(0x01000001, &clk->src_cpu);
sdelay(0x10000);
- writel(CLK_SRC_TOP0_VAL, &clk->src_top0);
- writel(CLK_SRC_TOP1_VAL, &clk->src_top1);
- writel(CLK_SRC_DMC_VAL, &clk->src_dmc);
- writel(CLK_SRC_LEFTBUS_VAL, &clk->src_leftbus);
- writel(CLK_SRC_RIGHTBUS_VAL, &clk->src_rightbus);
+ writel(0x10, &clk->src_leftbus);
+ writel(0x10, &clk->src_rightbus);
+ writel(0x110, &clk->src_top0);
+ writel(0x1111000, &clk->src_top1);
+ writel(0x00011000, &clk->src_dmc);
writel(CLK_SRC_FSYS_VAL, &clk->src_fsys);
writel(CLK_SRC_PERIL0_VAL, &clk->src_peril0);
writel(CLK_SRC_CAM_VAL, &clk->src_cam);
writel(CLK_SRC_MFC_VAL, &clk->src_mfc);
writel(CLK_SRC_G3D_VAL, &clk->src_g3d);
- writel(CLK_SRC_LCD0_VAL, &clk->src_lcd0);
sdelay(0x10000);
- writel(CLK_DIV_CPU0_VAL, &clk->div_cpu0);
- writel(CLK_DIV_CPU1_VAL, &clk->div_cpu1);
- writel(CLK_DIV_DMC0_VAL, &clk->div_dmc0);
- writel(CLK_DIV_DMC1_VAL, &clk->div_dmc1);
- writel(CLK_DIV_LEFTBUS_VAL, &clk->div_leftbus);
- writel(CLK_DIV_RIGHTBUS_VAL, &clk->div_rightbus);
- writel(CLK_DIV_TOP_VAL, &clk->div_top);
+ writel(0x1160730, &clk->div_cpu0);
+ writel(0x506, &clk->div_cpu1);
+ writel(0x111113, &clk->div_dmc0);
+ writel(0x1011713, &clk->div_dmc1);
writel(CLK_DIV_FSYS1_VAL, &clk->div_fsys1);
- writel(CLK_DIV_FSYS2_VAL, &clk->div_fsys2);
+ writel(0x4070047, &clk->div_fsys2);
writel(CLK_DIV_FSYS3_VAL, &clk->div_fsys3);
writel(CLK_DIV_PERIL0_VAL, &clk->div_peril0);
writel(CLK_DIV_CAM_VAL, &clk->div_cam);
writel(CLK_DIV_MFC_VAL, &clk->div_mfc);
writel(CLK_DIV_G3D_VAL, &clk->div_g3d);
- writel(CLK_DIV_LCD0_VAL, &clk->div_lcd0);
/* Set PLL locktime */
writel(PLL_LOCKTIME, &clk->apll_lock);
@@ -81,10 +78,10 @@ void system_clock_init(void)
writel(PLL_LOCKTIME, &clk->epll_lock);
writel(PLL_LOCKTIME, &clk->vpll_lock);
- writel(APLL_CON1_VAL, &clk->apll_con1);
- writel(APLL_CON0_VAL, &clk->apll_con0);
- writel(MPLL_CON1_VAL, &clk->mpll_con1);
- writel(MPLL_CON0_VAL, &clk->mpll_con0);
+ writel(0x803800, &clk->apll_con1);
+ writel(0x80af0300, &clk->apll_con0);
+ writel(0x803800, &clk->mpll_con1);
+ writel(0x80640300, &clk->mpll_con0);
writel(EPLL_CON1_VAL, &clk->epll_con1);
writel(EPLL_CON0_VAL, &clk->epll_con0);
writel(VPLL_CON1_VAL, &clk->vpll_con1);
(END)修改drm的初始化
diff --git a/arch/arm/mach-exynos/dmc_init_exynos4.c b/arch/arm/mach-exynos/dmc_init_exynos4.c
old mode 100644
new mode 100755
index ecddc72..69e9fd6
--- a/arch/arm/mach-exynos/dmc_init_exynos4.c
+++ b/arch/arm/mach-exynos/dmc_init_exynos4.c
@@ -32,19 +32,19 @@ struct mem_timings mem = {
.direct_cmd_msr = {
DIRECT_CMD1, DIRECT_CMD2, DIRECT_CMD3, DIRECT_CMD4
},
- .timingref = TIMINGREF_VAL,
- .timingrow = TIMINGROW_VAL,
- .timingdata = TIMINGDATA_VAL,
- .timingpower = TIMINGPOWER_VAL,
- .zqcontrol = ZQ_CONTROL_VAL,
- .control0 = CONTROL0_VAL,
- .control1 = CONTROL1_VAL,
- .control2 = CONTROL2_VAL,
- .concontrol = CONCONTROL_VAL,
- .prechconfig = PRECHCONFIG,
- .memcontrol = MEMCONTROL_VAL,
- .memconfig0 = MEMCONFIG0_VAL,
- .memconfig1 = MEMCONFIG1_VAL,
+ .timingref = 0x000000bb,//TIMINGREF_VAL,
+ .timingrow = 0x7a46654f,//TIMINGROW_VAL,
+ .timingdata = 0x46400506,//TIMINGDATA_VAL,
+ .timingpower = 0x52000a3c,//TIMINGPOWER_VAL,
+ .zqcontrol = 0xe3854c03,//ZQ_CONTROL_VAL,
+ .control0 = 0x7110100b,//CONTROL0_VAL,
+ .control1 = 0xe0000086,//CONTROL1_VAL,
+ .control2 = 0x00000000,//CONTROL2_VAL,
+ .concontrol = 0x0fff333a,//CONCONTROL_VAL,
+ .prechconfig = 0xff000000,//PRECHCONFIG,
+ .memcontrol = 0x00302640,//MEMCONTROL_VAL,
+ .memconfig0 = 0x40c01333,//MEMCONFIG0_VAL,
+ .memconfig1 = 0x80e01323,//MEMCONFIG1_VAL,
.dll_resync = FORCE_DLL_RESYNC,
.dll_on = DLL_CONTROL_ON,
};
@@ -124,6 +124,8 @@ static void dmc_init(struct exynos4_dmc *dmc)
writel(mem.memconfig0, &dmc->memconfig0);
writel(mem.memconfig1, &dmc->memconfig1);
+ writel(0x8000001F, &dmc->ivcontrol);
+
/* Config Precharge Policy */
writel(mem.prechconfig, &dmc->prechconfig);
/*修改dmc的一些配置
diff --git a/arch/arm/mach-exynos/exynos4_setup.h b/arch/arm/mach-exynos/exynos4_setup.h
old mode 100644
new mode 100755
index 38735f0..4fb5444
--- a/arch/arm/mach-exynos/exynos4_setup.h
+++ b/arch/arm/mach-exynos/exynos4_setup.h
@@ -5,8 +5,11 @@
* Copyright (C) 2011 Samsung Electronics
*/
-#ifndef _ORIGEN_SETUP_H
-#define _ORIGEN_SETUP_H
+//#ifndef _ORIGEN_SETUP_H
+//#define _ORIGEN_SETUP_H
+
+#ifndef _TINY4412_SETUP_H
+#define _TINY4412_SETUP_H
#include <config.h>
#include <asm/arch/cpu.h>
@@ -433,7 +436,7 @@ struct mem_timings {
#define ABP_SFR_SLV1_SINGLE_ADDRMAP_START_OFFSET 0x828
#define ABP_SFR_SLV1_SINGLE_ADDRMAP_END_OFFSET 0x830
-#ifdef CONFIG_ORIGEN
+#if (defined CONFIG_ORIGEN) || (defined CONFIG_TINY4412)
/* Interleave: 2Bit, Interleave_bit1: 0x15, Interleave_bit0: 0x7 */
#define APB_SFR_INTERLEAVE_CONF_VAL 0x20001507
#define APB_SFR_ARBRITATION_CONF_VAL 0x00000001
@@ -505,7 +508,7 @@ struct mem_timings {
#define ADD_LAT_PALL (1 << 6)
#define MEM_TYPE_DDR3 (0x6 << 8)
#define MEM_WIDTH_32 (0x2 << 12)
-#define NUM_CHIP_2 (1 << 16)
+#define NUM_CHIP_2 (0 << 16)
#define BL_8 (0x3 << 20)
#define MEMCONTROL_VAL (CLK_STOP_DISABLE | DPWRDN_DISABLE\
| DPWRDN_TYPE | TP_DISABLE | DSREF_DIABLE\
@@ -514,16 +517,16 @@ struct mem_timings {
#define CHIP_BANK_8 (0x3 << 0)
-#define CHIP_ROW_14 (0x2 << 4)
+#define CHIP_ROW_14 (0x3 << 4)
#define CHIP_COL_10 (0x3 << 8)
#define CHIP_MAP_INTERLEAVED (1 << 12)
-#define CHIP_MASK (0xe0 << 16)
+#define CHIP_MASK (0xC0 << 16)
#ifdef CONFIG_MIU_LINEAR
#define CHIP0_BASE (0x40 << 24)
#define CHIP1_BASE (0x60 << 24)
#else
-#define CHIP0_BASE (0x20 << 24)
-#define CHIP1_BASE (0x40 << 24)
+#define CHIP0_BASE (0x40 << 24)
+#define CHIP1_BASE (0x80 << 24)
#endif
#define MEMCONFIG0_VAL (CHIP_BANK_8 | CHIP_ROW_14 | CHIP_COL_10\
| CHIP_MAP_INTERLEAVED | CHIP_MASK | CHIP0_BASE)
@@ -555,7 +558,7 @@ struct mem_timings {
#define CONTROL2_VAL 0x00000000
-#ifdef CONFIG_ORIGEN
+#if (defined CONFIG_ORIGEN) || (defined CONFIG_TINY4412)
#define TIMINGREF_VAL 0x000000BB
#define TIMINGROW_VAL 0x4046654f
#define TIMINGDATA_VAL 0x46400506
(END)初始化串口0，作为打印输出口
diff --git a/arch/arm/mach-exynos/lowlevel_init.c b/arch/arm/mach-exynos/lowlevel_init.c
index 1e090fd..8cae6b9 100644
--- a/arch/arm/mach-exynos/lowlevel_init.c
+++ b/arch/arm/mach-exynos/lowlevel_init.c
@@ -216,14 +216,17 @@ int do_lowlevel_init(void)
if (actions & DO_CLOCKS) {
system_clock_init();
#ifdef CONFIG_DEBUG_UART
-#if (defined(CONFIG_SPL_BUILD) && defined(CONFIG_SPL_SERIAL_SUPPORT)) || \
+//#if (defined(CONFIG_SPL_BUILD) && defined(CONFIG_SPL_SERIAL_SUPPORT)) || \
!defined(CONFIG_SPL_BUILD)
- exynos_pinmux_config(PERIPH_ID_UART3, PINMUX_FLAG_NONE);
+ exynos_pinmux_config(PERIPH_ID_UART0, PINMUX_FLAG_NONE);
debug_uart_init();
-#endif
+ printascii("UART OK \n\r");
+//#endif
#endif
mem_ctrl_init(actions & DO_MEM_RESET);
+ printascii("mem ctrl init ok \n\r");
tzpc_init();
+ printascii("tzpc_init ok \n\r");
}修改trust zone ，否则有些总线不能用
diff --git a/arch/arm/mach-exynos/tzpc.c b/arch/arm/mach-exynos/tzpc.c
old mode 100644
new mode 100755
index abe8e7f..63605d5
--- a/arch/arm/mach-exynos/tzpc.c
+++ b/arch/arm/mach-exynos/tzpc.c
@@ -17,10 +17,7 @@ void tzpc_init(void)
start = samsung_get_base_tzpc();
- if (cpu_is_exynos5())
- end = start + ((EXYNOS5_NR_TZPC_BANKS - 1) * TZPC_BASE_OFFSET);
- else if (cpu_is_exynos4())
- end = start + ((EXYNOS4_NR_TZPC_BANKS - 1) * TZPC_BASE_OFFSET);
+ end = start + ((EXYNOS4_NR_TZPC_BANKS - 1) * TZPC_BASE_OFFSET);
for (addr = start; addr <= end; addr += TZPC_BASE_OFFSET) {
tzpc = (struct exynos_tzpc *)addr;
@@ -30,11 +27,7 @@ void tzpc_init(void)
writel(DECPROTXSET, &tzpc->decprot0set);
writel(DECPROTXSET, &tzpc->decprot1set);
-
- if (cpu_is_exynos5() && (addr == end))
- break;
-
- writel(DECPROTXSET, &tzpc->decprot2set);
+ writel(0xbd, &tzpc->decprot2set);
writel(DECPROTXSET, &tzpc->decprot3set);
}
}仿照board/samsung/origen 文件夹增加board/samsung/tiny4412文件夹，并修改里面的文件名。
board/samsung/tiny4412/Kconfig
board/samsung/tiny4412/MAINTAINERS
board/samsung/tiny4412/Makefile
board/samsung/tiny4412/tiny4412.c
board/samsung/tiny4412/tools/mktiny4412spl.c
修改Kconfig文件
diff --git a/board/samsung/tiny4412/Kconfig b/board/samsung/tiny4412/Kconfig
new file mode 100644
index 0000000..04658fe
--- /dev/null
+++ b/board/samsung/tiny4412/Kconfig
@@ -0,0 +1,16 @@
+if TARGET_TINY4412
+
+config TINY4412
+ default y
+ bool "For CONFIG_TINY4412"
+
+config SYS_BOARD
+ default "tiny4412"
+
+config SYS_VENDOR
+ default "samsung"
+
+config SYS_CONFIG_NAME
+ default "tiny4412"
+
+endif增加如下文件
diff --git a/board/samsung/tiny4412/MAINTAINERS b/board/samsung/tiny4412/MAINTAINERS
new file mode 100755
index 0000000..4f2fd06
--- /dev/null
+++ b/board/samsung/tiny4412/MAINTAINERS
@@ -0,0 +1,6 @@
+TINY4412 BOARD
+M: Song Chong <[email protected]>
+S: Maintained
+F: board/samsung/tiny4412/
+F: include/configs/tiny4412.h
+F: configs/tiny4412_defconfigdiff --git a/board/samsung/tiny4412/tiny4412.c b/board/samsung/tiny4412/tiny4412.c
new file mode 100755
index 0000000..eca942a
--- /dev/null
+++ b/board/samsung/tiny4412/tiny4412.c
@@ -0,0 +1,37 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2011 Samsung Electronics
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/gpio.h>
+#include <asm/arch/cpu.h>
+#include <asm/arch/mmc.h>
+#include <asm/arch/periph.h>
+#include <asm/arch/pinmux.h>
+#include <usb.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+u32 get_board_rev(void)
+{
+ return 0;
+}
+
+int exynos_init(void)
+{
+ return 0;
+}
+
+int board_usb_init(int index, enum usb_init_type init)
+{
+ return 0;
+}
+
+#ifdef CONFIG_BOARD_EARLY_INIT_F
+int exynos_early_init_f(void)
+{
+ return 0;
+}
+#endifdiff --git a/board/samsung/tiny4412/tools/mktiny4412spl.c b/board/samsung/tiny4412/tools/mktiny4412spl.c
new file mode 100644
index 0000000..f4be867
--- /dev/null
+++ b/board/samsung/tiny4412/tools/mktiny4412spl.c
@@ -0,0 +1,109 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2011 Samsung Electronics
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <string.h>
+#include <sys/stat.h>
+
+#define BUFSIZE (16*1024)
+#define IMG_SIZE (16*1024)
+#define SPL_HEADER_SIZE 16
+#define FILE_PERM (S_IRUSR | S_IWUSR | S_IRGRP \
+ | S_IWGRP | S_IROTH | S_IWOTH)
+#define SPL_HEADER "S5PC210 HEADER "
+/*
+* Requirement:
+* IROM code reads first 14K bytes from boot device.
+* It then calculates the checksum of 14K-4 bytes and compare with data at
+* 14K-4 offset.
+*
+* This function takes two filenames:
+* IN "u-boot-spl.bin" and
+* OUT "$(BOARD)-spl.bin as filenames.
+* It reads the "u-boot-spl.bin" in 16K buffer.
+* It calculates checksum of 14K-4 Bytes and stores at 14K-4 offset in buffer.
+* It writes the buffer to "$(BOARD)-spl.bin" file.
+*/
+
+int main(int argc, char **argv)
+{
+ int i, len;
+ unsigned char buffer[BUFSIZE] = {0};
+ int ifd, ofd;
+ unsigned int checksum = 0, count;
+
+ if (argc != 3) {
+ printf(" %d Wrong number of arguments\n", argc);
+ exit(EXIT_FAILURE);
+ }
+
+ ifd = open(argv[1], O_RDONLY);
+ if (ifd < 0) {
+ fprintf(stderr, "%s: Can't open %s: %s\n",
+ argv[0], argv[1], strerror(errno));
+ exit(EXIT_FAILURE);
+ }
+
+ ofd = open(argv[2], O_WRONLY | O_CREAT | O_TRUNC, FILE_PERM);
+ if (ofd < 0) {
+ fprintf(stderr, "%s: Can't open %s: %s\n",
+ argv[0], argv[2], strerror(errno));
+ if (ifd)
+ close(ifd);
+ exit(EXIT_FAILURE);
+ }
+
+ len = lseek(ifd, 0, SEEK_END);
+ lseek(ifd, 0, SEEK_SET);
+
+ memcpy(&buffer[0], SPL_HEADER, SPL_HEADER_SIZE);
+
+ count = (len < (IMG_SIZE - SPL_HEADER_SIZE))
+ ? len : (IMG_SIZE - SPL_HEADER_SIZE);
+
+ if (read(ifd, buffer + SPL_HEADER_SIZE, count) != count) {
+ fprintf(stderr, "%s: Can't read %s: %s\n",
+ argv[0], argv[1], strerror(errno));
+
+ if (ifd)
+ close(ifd);
+ if (ofd)
+ close(ofd);
+
+ exit(EXIT_FAILURE);
+ }
+
+ for (i = 0; i < IMG_SIZE - SPL_HEADER_SIZE; i++)
+ checksum += buffer[i+16];
+
+ *(unsigned long *)buffer ^= 0x1f;
+ *(unsigned long *)(buffer+4) ^= checksum;
+
+ for (i = 1; i < SPL_HEADER_SIZE; i++)
+ buffer[i] ^= buffer[i-1];
+
+ if (write(ofd, buffer, BUFSIZE) != BUFSIZE) {
+ fprintf(stderr, "%s: Can't write %s: %s\n",
+ argv[0], argv[2], strerror(errno));
+
+ if (ifd)
+ close(ifd);
+ if (ofd)
+ close(ofd);
+
+ exit(EXIT_FAILURE);
+ }
+
+ if (ifd)
+ close(ifd);
+ if (ofd)
+ close(ofd);
+
+ return EXIT_SUCCESS;
+}增加个打印，看uboot是否跑起来
diff --git a/common/board_f.c b/common/board_f.c
index 149a722..f0fbf13 100644
--- a/common/board_f.c
+++ b/common/board_f.c
@@ -43,7 +43,7 @@
#include <asm/sections.h>
#include <dm/root.h>
#include <linux/errno.h>
-
+#include <debug_uart.h>
/*
* Pointer to initial global data area
*
@@ -985,6 +985,7 @@ static const init_fnc_t init_sequence_f[] = {
void board_init_f(ulong boot_flags)
{
+ printascii("uboot runnig.\r\n");
gd->flags = boot_flags;
gd->have_console = 0;增加配置文件tiny4412_defonfig
diff --git a/configs/tiny4412_defconfig b/configs/tiny4412_defconfig
new file mode 100755
index 0000000..06b35fb
--- /dev/null
+++ b/configs/tiny4412_defconfig
@@ -0,0 +1,49 @@
+CONFIG_ARM=y
+CONFIG_ARCH_EXYNOS=y
+CONFIG_TARGET_TINY4412=y
+CONFIG_SYS_TEXT_BASE=0x43E00000
+CONFIG_ARCH_EXYNOS4=y
+#CONFIG_TARGET_ORIGEN=y
+CONFIG_SPL=y
+CONFIG_IDENT_STRING=" for TINY4412"
+CONFIG_DISTRO_DEFAULTS=y
+# CONFIG_USE_BOOTCOMMAND is not set
+CONFIG_SYS_CONSOLE_IS_IN_ENV=y
+CONFIG_SYS_CONSOLE_INFO_QUIET=y
+# CONFIG_SPL_FRAMEWORK is not set
+CONFIG_SYS_PROMPT="TINY4412 # "
+# CONFIG_CMD_XIMG is not set
+CONFIG_CMD_THOR_DOWNLOAD=y
+CONFIG_CMD_DFU=y
+CONFIG_CMD_GPT=y
+CONFIG_CMD_MMC=y
+CONFIG_CMD_BOOTZ=y
+CONFIG_CMD_MII=y
+CONFIG_CMD_USB_MASS_STORAGE=y
+# CONFIG_CMD_NET is not set
+CONFIG_CMD_CACHE=y
+CONFIG_CMD_EXT2=y
+CONFIG_CMD_EXT4=y
+CONFIG_CMD_EXT4_WRITE=y
+CONFIG_CMD_FAT=y
+CONFIG_CMD_FS_GENERIC=y
+# CONFIG_CMD_MISC is not set
+CONFIG_CMD_EXT4_WRITE=y
+CONFIG_OF_CONTROL=y
+CONFIG_DEFAULT_DEVICE_TREE="exynos4412-tiny4412"
+CONFIG_DFU_MMC=y
+CONFIG_DM_MMC=y
+CONFIG_MMC_DW=y
+CONFIG_MMC_SDHCI=y
+CONFIG_MMC_SDHCI_SDMA=y
+CONFIG_MMC_SDHCI_S5P=y
+CONFIG_USB=y
+CONFIG_DM_USB=y
+CONFIG_USB_GADGET=y
+CONFIG_USB_GADGET_MANUFACTURER="Samsung"
+CONFIG_USB_GADGET_VENDOR_NUM=0x04e8
+CONFIG_USB_GADGET_PRODUCT_NUM=0x6601
+CONFIG_USB_GADGET_DWC2_OTG=y
+CONFIG_USB_GADGET_DOWNLOAD=y
+CONFIG_USB_FUNCTION_THOR=y
+# CONFIG_REGEX is not set修改串口初始化寄存器
diff --git a/drivers/serial/serial_s5p.c b/drivers/serial/serial_s5p.c
index e3160cf..2de62f0 100644
--- a/drivers/serial/serial_s5p.c
+++ b/drivers/serial/serial_s5p.c
@@ -62,12 +62,12 @@ static const int udivslot[] = {
static void __maybe_unused s5p_serial_init(struct s5p_uart *uart)
{
/* enable FIFOs, auto clear Rx FIFO */
- writel(0x3, &uart->ufcon);
+ writel(0x11, &uart->ufcon);
writel(0, &uart->umcon);
/* 8N1 */
writel(0x3, &uart->ulcon);
/* No interrupts, no DMA, pure polling */
- writel(0x245, &uart->ucon);
+ writel(0x3c5, &uart->ucon);
}增加include/configs/tiny4412.h
diff --git a/include/configs/tiny4412.h b/include/configs/tiny4412.h
new file mode 100755
index 0000000..bc67d97
--- /dev/null
+++ b/include/configs/tiny4412.h
@@ -0,0 +1,134 @@
+/*
+ * Copyright (C) 2011 Samsung Electronics
+ *
+ * Configuration settings for the SAMSUNG TINY4412 (EXYNOS4412) board.
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#ifndef __CONFIG_TINY4412_H
+#define __CONFIG_TINY4412_H
+
+#include <configs/exynos4-common.h>
+
+/* High Level Configuration Options */
+#define CONFIG_TINY4412 1
+
+#define CONFIG_SPL_SERIAL_SUPPORT
+#define CONFIG_SPL_GPIO_SUPPORT
+#define CONFIG_DEBUG_UART
+#define CONFIG_DEBUG_UART_S5P
+#define CONFIG_DEBUG_UART_BASE 0x13800000 /* UART0 base address */
+#define CONFIG_DEBUG_UART_CLOCK (100000000) /* SCLK_UART0 is 100MHz */
+
+#define CONFIG_SYS_DCACHE_OFF 1
+
+/* ORIGEN has 4 bank of DRAM */
+#define CONFIG_NR_DRAM_BANKS 4
+#define CONFIG_SYS_SDRAM_BASE 0x40000000
+#define PHYS_SDRAM_1 CONFIG_SYS_SDRAM_BASE
+#define SDRAM_BANK_SIZE (256 << 20) /* 256 MB */
+
+/* memtest works on */
+#define CONFIG_SYS_MEMTEST_START CONFIG_SYS_SDRAM_BASE
+#define CONFIG_SYS_MEMTEST_END (CONFIG_SYS_SDRAM_BASE + 0x6000000)
+#define CONFIG_SYS_LOAD_ADDR (CONFIG_SYS_SDRAM_BASE + 0x3E00000)
+
+#define CONFIG_MACH_TYPE MACH_TYPE_TINY4412
+
+/* select serial console configuration */
+#define CONFIG_SERIAL2
+#define CONFIG_BAUDRATE 115200
+
+/* Console configuration */
+
+#define CONFIG_DEFAULT_CONSOLE "console=ttySAC0,115200n8\0"
+
+#define CONFIG_SYS_MEM_TOP_HIDE (1 << 20) /* ram console */
+
+#define CONFIG_SYS_MONITOR_BASE 0x00000000
+
+/* Power Down Modes */
+#define S5P_CHECK_SLEEP 0x00000BAD
+#define S5P_CHECK_DIDLE 0xBAD00000
+#define S5P_CHECK_LPA 0xABAD0000
+
+/* MMC SPL */
+#define COPY_BL2_FNPTR_ADDR 0x02020030
+/* Because bl1 will copy bl2(spl) to iram address 0x02023400 */
+#define CONFIG_SPL_TEXT_BASE 0x02023400
+
+#define CONFIG_EXTRA_ENV_SETTINGS \
+ "loadaddr=0x40007000\0" \
+ "rdaddr=0x48000000\0" \
+ "dtaddr=0x42000000\0" \
+ "kerneladdr=0x40007000\0" \
+ "ramdiskaddr=0x48000000\0" \
+ "dtbaddr=0x42000000\0" \
+ "console=ttySAC0,115200n8\0" \
+ "mmcdev=0\0" \
+ "bootenv=uEnv.txt\0" \
+ "loadbootenv=load mmc ${mmcdev} ${loadaddr} ${bootenv}\0" \
+ "importbootenv=echo Importing environment from mmc ...; " \
+ "env import -t $loadaddr $filesize\0" \
+ "loadbootscript=load mmc ${mmcdev} ${loadaddr} boot.scr\0" \
+ "bootscript=echo Running bootscript from mmc${mmcdev} ...; " \
+ "source ${loadaddr}\0"
+#define CONFIG_BOOTCOMMAND \
+ "if mmc rescan; then " \
+ "echo SD/MMC found on device ${mmcdev};" \
+ "if run loadbootenv; then " \
+ "echo Loaded environment from ${bootenv};" \
+ "run importbootenv;" \
+ "fi;" \
+ "if test -n $uenvcmd; then " \
+ "echo Running uenvcmd ...;" \
+ "run uenvcmd;" \
+ "fi;" \
+ "if run loadbootscript; then " \
+ "run bootscript; " \
+ "fi; " \
+ "fi;" \
+ "load mmc ${mmcdev} ${loadaddr} uImage;" \
+ "load mmc ${mmcdev} ${rdaddr} ramdisk.img;"\
+ "load mmc ${mmcdev} ${dtaddr} exynos4412-tiny4412.dtb; bootm ${loadaddr} "
+
+#define CONFIG_IDENT_STRING " for TINY4412"
+
+#define CONFIG_CLK_1000_400_200
+
+/* MIU (Memory Interleaving Unit) */
+#define CONFIG_MIU_2BIT_21_7_INTERLEAVED
+
+/*
+ * SD MMC layout:
+ * +------------+------------------------------------------------------------+
+ * | |
+ * | | | | | |
+ * | 512B | 8K(bl1) | 16k(bl2) | 16k(ENV) | 512k(u-boot) |
+ * | | | | | |
+ * | |
+ * +------------+------------------------------------------------------------+
+ *
+ */
+
+#define CONFIG_SYS_MMC_ENV_DEV 0
+#define CONFIG_ENV_SIZE (16 << 10) /* 16 KB */
+#define RESERVE_BLOCK_SIZE (512)
+#define BL1_SIZE (8 << 10) /*16 K reserved for BL1*/
+#define BL2_SIZE (16 << 10) /*16 k reserved for BL2*/
+#define CONFIG_ENV_OFFSET (RESERVE_BLOCK_SIZE + BL1_SIZE + BL2_SIZE)
+
+#define CONFIG_SPL_LDSCRIPT "board/samsung/common/exynos-uboot-spl.lds"
+#define CONFIG_SPL_MAX_FOOTPRINT (14 * 1024)
+
+#define CONFIG_SYS_INIT_SP_ADDR 0x02040000
+
+/* U-Boot copy size from boot Media to DRAM.*/
+#define COPY_BL2_SIZE 0x80000
+#define BL2_START_OFFSET ((CONFIG_ENV_OFFSET + CONFIG_ENV_SIZE)/512)
+#define BL2_SIZE_BLOC_COUNT (COPY_BL2_SIZE/512)
+
+/* #define UBOOT_DEBUG_20151226 */
+
+#endif /* __CONFIG_H */增加个自动化编译的脚本，方便编译
diff --git a/make.sh b/make.sh
new file mode 100755
index 0000000..579407d
--- /dev/null
+++ b/make.sh
@@ -0,0 +1,2 @@
+make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf-
+make tiny4412_defconfig && make增加个自动烧写SD卡，制作卡启动的脚本。其中/dev/sdb是sd卡被编译uboot的linux机器识别为sdb1.
不同的 机器可能识别出来不一样，有的是/dev/sdc等，通过df 命令可以查看。
diff --git a/run.sh b/run.sh
new file mode 100755
index 0000000..925b7ad
--- /dev/null
+++ b/run.sh
@@ -0,0 +1,7 @@
+echo -e "\033[45m start fusing \033[0m"
+
+cd sd_fuse/tiny4412/
+./sd_fusing.sh /dev/sdb
+cd ../..
+
+echo -e "\033[45m fusing over \033[0m"友善之臂给出的uboot中，有个sd_fuse文件夹，需要拷贝过来，我放在uboot的根目录下。
V310-EVT1-mkbl2.c 用于生产mkbl2工具，里面有个地方需要修改。
diff --git a/sd_fuse/V310-EVT1-mkbl2.c b/sd_fuse/V310-EVT1-mkbl2.c
new file mode 100755
index 0000000..f754f9f
--- /dev/null
+++ b/sd_fuse/V310-EVT1-mkbl2.c
@@ -0,0 +1,99 @@
+/*
+ * Copyright (c) 2010 Samsung Electronics Co., Ltd.
+ * http://www.samsung.com/
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+
+int main (int argc, char *argv[])
+{
+ FILE *fp;
+ unsigned char src;
+ char *Buf, *a;
+ int BufLen;
+ int nbytes, fileLen;
+ unsigned int checksum = 0;
+ int i;
+
+ if (argc != 4)
+ {
+ printf("Usage: mkbl1 <source file> <destination file> <size> \n");
+ return -1;
+ }
+
+ BufLen = atoi(argv[3]);
+ Buf = (char *)malloc(BufLen);
+ memset(Buf, 0x00, BufLen);
+
+ fp = fopen(argv[1], "rb");
+ if( fp == NULL)
+ {
+ printf("source file open error\n");
+ free(Buf);
+ return -1;
+ }
+
+ fseek(fp, 0L, SEEK_END);
+ fileLen = ftell(fp);
+ fseek(fp, 0L, SEEK_SET);
+/*
+ if ( BufLen > fileLen )
+ {
+ printf("Usage: unsupported size\n");
+ free(Buf);
+ fclose(fp);
+ return -1;
+ }
+*/
+ //nbytes = fread(Buf, 1, BufLen, fp);
+ if(BufLen > fileLen)
+ nbytes = fread(Buf, 1, fileLen, fp);
+ else
+ nbytes = fread(Buf, 1, BufLen, fp);
+/*
+ if ( nbytes != BufLen )
+ {
+ printf("source file read error\n");
+ free(Buf);
+ fclose(fp);
+ return -1;
+ }
+*/
+ fclose(fp);
+
+ for(i = 0;i < (14 * 1024) - 4;i++)
+ {
+ checksum += (unsigned char)(Buf[i]);
+ }
+ *(unsigned int*)(Buf+i) = checksum;
+
+ fp = fopen(argv[2], "wb");
+ if (fp == NULL)
+ {
+ printf("destination file open error\n");
+ free(Buf);
+ return -1;
+ }
+
+ a = Buf;
+ nbytes = fwrite( a, 1, BufLen, fp);
+
+ if ( nbytes != BufLen )
+ {
+ printf("destination file write error\n");
+ free(Buf);
+ fclose(fp);
+ return -1;
+ }
+
+ free(Buf);
+ fclose(fp);
+
+ return 0;
+}
(END)sd_fusing.sh 用于将uboot 和bl2.bin等烧写到SD卡上。
diff --git a/sd_fuse/tiny4412/sd_fusing.sh b/sd_fuse/tiny4412/sd_fusing.sh
new file mode 100755
index 0000000..e5e6cdb
--- /dev/null
+++ b/sd_fuse/tiny4412/sd_fusing.sh
@@ -0,0 +1,91 @@
+#
+# Copyright (C) 2011 Samsung Electronics Co., Ltd.
+# http://www.samsung.com/
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+####################################
+
+if [ -z $1 ]
+then
+ echo "usage: ./sd_fusing.sh <SD Reader's device file>"
+ exit 0
+fi
+
+if [ -b $1 ]
+then
+ echo "$1 reader is identified."
+else
+ echo "$1 is NOT identified."
+ exit 0
+fi
+
+####################################
+#<verify device>
+
+BDEV_NAME=`basename $1`
+BDEV_SIZE=`cat /sys/block/${BDEV_NAME}/size`
+
+if [ ${BDEV_SIZE} -le 0 ]; then
+ echo "Error: NO media found in card reader."
+ exit 1
+fi
+
+if [ ${BDEV_SIZE} -gt 32000000 ]; then
+ echo "Error: Block device size (${BDEV_SIZE}) is too large"
+ exit 1
+fi
+
+####################################
+# check files
+
+E4412_SPL=../../spl/u-boot-spl.bin
+E4412_UBOOT=../../u-boot-dtb.bin
+MKBL2=../mkbl2
+
+if [ ! -f ${E4412_UBOOT} ]; then
+ echo "Error: u-boot.bin NOT found, please build it & try again."
+ exit -1
+fi
+
+if [ ! -f ${MKBL2} ]; then
+ echo "Error: can not find host tool - mkbl2, stop."
+ exit -1
+fi
+
+#<make bl2>
+${MKBL2} ${E4412_SPL} bl2.bin 14336
+
+####################################
+# fusing images
+
+signed_bl1_position=1
+bl2_position=17
+uboot_position=81
+
+#<BL1 fusing>
+echo "---------------------------------------"
+echo "BL1 fusing"
+dd iflag=dsync oflag=dsync if=./E4412_N.bl1.bin of=$1 seek=$signed_bl1_position
+
+#<BL2 fusing>
+echo "---------------------------------------"
+echo "BL2 fusing"
+dd iflag=dsync oflag=dsync if=./bl2.bin of=$1 seek=$bl2_position
+
+#<u-boot fusing>
+echo "---------------------------------------"
+echo "u-boot fusing"
+dd iflag=dsync oflag=dsync if=${E4412_UBOOT} of=$1 seek=$uboot_position
+
+#<flush to disk>
+sync
+
+####################################
+#<Message Display>
+echo "---------------------------------------"
+echo "U-boot image is fused successfully."
+echo "Eject SD card and insert it again."
+移植完毕.
编译
./make.sh
烧写
./run.sh烧写uboot到sd卡中。
随后将 uImage、ramdisk.img和exynos4412-tiny4412.dtb拷贝进SD卡（在linux上用脚本烧写完uboot后，将sd卡插在windows上，直接将这个三个文件拷贝进sd卡）,这三个文件的下载地址为：http://files.cnblogs.com/files/AP0904225/tiny4412-test-image.tar.gz
上电测试，uboot 2019跑起来，并且启动了内核。
参考：https://www.cnblogs.com/pengdonglin137/p/5080645.html
https://www.cnblogs.com/LoTGu/category/872380.html
https://blog.csdn.net/qq_33160790/article/category/7117737