06 (补充)初始化sdram代码

Start.s:

#define WTCON		0xE2700000
#define SVC_STACK	0xD0037D80
.global _start					// 把_start链接属性改为外部,这样其他文件就可以看见_start了
_start:
	//关看门狗(向WTCON的bit5写入0即可)
	ldr r0,= WTCON
	ldr r1,= (0<<5)
	str r1,[r0]
	
	//设置SVC栈,实现汇编与C的相互调用
	ldr sp,= SVC_STACK
	
	//开关icache
	mrc p15,0,r0,c1,c0,0    //读出cp15的c1到r0中
    //bic r0, r0, #(1<<12)    //bit12 清0 关icache
    orr r0, r0, #(1<<12)    //bit12 置1 开icache
    mcr p15,0,r0,c1,c0,0    //将r0写入cp15中的c1中
	
	//初始化ddr
	bl sdram_asm_init       //bl跳转,mov pc,=lr回来
	
	//重定位
	// adr指令用于加载_start当前运行地址(即dnw下载时选择的地址(0xd0020010))
	adr r0, _start  		// adr加载时就叫短加载		
	                        // ldr指令用于加载_start的链接地址:0x20000000
	ldr r1, =_start         // ldr加载时如果目标寄存器是pc就叫长跳转,如果目标寄存器是r1等就叫长加载	
	// bss段的起始地址
	ldr r2, =bss_start	// 就是我们重定位代码的结束地址,重定位只需重定位代码段和数据段即可
	cmp r0, r1			// 比较_start的运行时地址和链接地址是否相等
	beq clean_bss		// 如果相等说明不需要重定位,所以跳过copy_loop,直接到clean_bss
						// 如果不相等说明需要重定位,那么直接执行下面的copy_loop进行重定位
						// 重定位完成后继续执行clean_bss。

// 用汇编来实现的一个while循环
copy_loop:
	ldr r3, [r0], #4    // 源 后面的#4就是:r0的四个字节赋值给r3,r0地址加4
	str r3, [r1], #4	// 目的   这两句代码就完成了4个字节内容的拷贝
	cmp r1, r2			// r1和r2都是用ldr加载的,都是链接地址,所以r1不断+4总能等于r2
	bne copy_loop

	// 清bss段,其实就是在链接地址处把bss段全部清零
clean_bss:
	ldr r0, =bss_start					
	ldr r1, =bss_end
	cmp r0, r1				// 如果r0等于r1,说明bss段为空,直接下去
	beq run_on_dram			// 清除bss完之后的地址
	mov r2, #0              // r2 = 0
clear_loop:
	str r2, [r0], #4		// 先将r2中的值放入r0所指向的内存地址(r0中的值作为内存地址),
	cmp r0, r1				// 然后r0 = r0 + 4(即将bss清0)
	bne clear_loop

run_on_dram:	
	// 长跳转到led_blink开始第二阶段
	ldr pc, =czg_led				// ldr指令实现长跳转,b指令是短跳转
	//最后这里跳转,是跳转到重定位的代码所对应的czg_led这个函数那里去执行的


link.lds:

SECTIONS
{
. = 0x20000000;     /*指定链接地址为0x20000000*/

.text : {           /*代码段*/
start.o         /*指定链接的顺序为:start.o->sdram_init.o->其他的一些文件*/
* (.text)       /*这里表示其他的一些.o文件*/
}
   
.data : {           /*数据段*/
* (.data)       /*这里表示所有的数据段的文件*/
}

bss_start = .;      /*把当前的地址赋值给bss_start*/
.bss : {            /*bss段*/
* (.bss)        /*所有bss段的文件*/
}

bss_end  = .;    /*把当前的地址赋值给bss_end*/


Makefile:

led.bin: start.o led.o sdram_init.o
arm-linux-ld -Tlink.lds -o led.elf $^#代码段运行地址为0x0,将所有依赖文件链接为led.elf
arm-linux-objcopy -O binary led.elf led.bin #将led.elf复制一份为led.bin文件
arm-linux-objdump -D led.elf > led_elf.dis#将led.elf文件转换为.dis反汇编文件
gcc mkv210_image.c -o mkx210
./mkx210 led.bin 210.bin

%.o : %.S
arm-linux-gcc -o $@ $< -c -nostdlib


%.o : %.c
arm-linux-gcc -o $@ $< -c -nostdlib


clean:
rm *.o *.elf *.bin *.dis mkx210 -f



sdram_init..S:

#include "s5pv210.h"

#if 1
#define DMC0_MEMCONTROL		0x00202400 	// MemControl	BL=4, 1Chip, DDR2 Type, dynamic self refresh, force precharge, dynamic power down off

#define DMC0_MEMCONFIG_0	0x20F01323	// MemConfig0	256MB config, 8 banks,Mapping Method[12:15]0:linear, 1:linterleaved, 2:Mixed
#define DMC0_MEMCONFIG_1	0x30F00312	// MemConfig1		默认值

#define DMC0_TIMINGA_REF	0x00000618	// TimingAref	7.8us*133MHz=1038(0x40E), 100MHz=780(0x30C), 20MHz=156(0x9C), 10MHz=78(0x4E)
#define DMC0_TIMING_ROW		0x28233287	// TimingRow	for @200MHz
#define DMC0_TIMING_DATA	0x23240304	// TimingData	CL=3
#define	DMC0_TIMING_PWR		0x09C80232	// TimingPower

#define	DMC1_MEMCONTROL		0x00202400	// MemControl	BL=4, 2 chip, DDR2 type, dynamic self refresh, force precharge, dynamic power down off

#define DMC1_MEMCONFIG_0	0x40F01323	// MemConfig0	512MB config, 8 banks,Mapping Method[12:15]0:linear, 1:linterleaved, 2:Mixed
#define DMC1_MEMCONFIG_1	0x60E00312	// MemConfig1

#define DMC1_TIMINGA_REF	0x00000618	// TimingAref	7.8us*133MHz=1038(0x40E), 100MHz=780(0x30C), 20MHz=156(0x9C), 10MHz=78(0x4
#define DMC1_TIMING_ROW		0x28233289	// TimingRow	for @200MHz
#define DMC1_TIMING_DATA	0x23240304	// TimingData	CL=3
#define	DMC1_TIMING_PWR		0x08280232	// TimingPower

#endif

#if 0

#define DMC0_MEMCONTROL		0x00212400 	// MemControl	BL=4, 1Chip, DDR2 Type, dynamic self refresh, force precharge, dynamic power down off

#define DMC0_MEMCONFIG_0	0x20E01323	// MemConfig0	512MB config, 8 banks,Mapping Method[12:15]0:linear, 1:linterleaved, 2:Mixed
#define DMC0_MEMCONFIG_1	0x40F01323	// MemConfig1

#define DMC0_TIMINGA_REF	0x00000618	// TimingAref	7.8us*133MHz=1038(0x40E), 100MHz=780(0x30C), 20MHz=156(0x9C), 10MHz=78(0x4E)
#define DMC0_TIMING_ROW		0x28233287	// TimingRow	for @200MHz
#define DMC0_TIMING_DATA	0x23240304	// TimingData	CL=3
#define	DMC0_TIMING_PWR		0x09C80232	// TimingPower

#define	DMC1_MEMCONTROL		0x00202400	// MemControl	BL=4, 2 chip, DDR2 type, dynamic self refresh, force precharge, dynamic power down off

#define DMC1_MEMCONFIG_0	0x40C01323	// MemConfig0	512MB config, 8 banks,Mapping Method[12:15]0:linear, 1:linterleaved, 2:Mixed
#define DMC1_MEMCONFIG_1	0x00E01323	// MemConfig1

#define DMC1_TIMINGA_REF	0x00000618	// TimingAref	7.8us*133MHz=1038(0x40E), 100MHz=780(0x30C), 20MHz=156(0x9C), 10MHz=78(0x4
#define DMC1_TIMING_ROW		0x28233289	// TimingRow	for @200MHz
#define DMC1_TIMING_DATA	0x23240304	// TimingData	CL=3
#define	DMC1_TIMING_PWR		0x08280232	// TimingPower


#endif







.global sdram_asm_init

sdram_asm_init:	
	ldr	r0, =0xf1e00000
	ldr	r1, =0x0
	str	r1, [r0, #0x0]

	/* DMC0 Drive Strength (Setting 2X) */
	
	ldr	r0, =ELFIN_GPIO_BASE

	ldr	r1, =0x0000AAAA
	str	r1, [r0, #MP1_0DRV_SR_OFFSET]		// 寄存器中对应0b10,就是2X

	ldr	r1, =0x0000AAAA
	str	r1, [r0, #MP1_1DRV_SR_OFFSET]

	ldr	r1, =0x0000AAAA
	str	r1, [r0, #MP1_2DRV_SR_OFFSET]

	ldr	r1, =0x0000AAAA
	str	r1, [r0, #MP1_3DRV_SR_OFFSET]

	ldr	r1, =0x0000AAAA
	str	r1, [r0, #MP1_4DRV_SR_OFFSET]

	ldr	r1, =0x0000AAAA
	str	r1, [r0, #MP1_5DRV_SR_OFFSET]

	ldr	r1, =0x0000AAAA
	str	r1, [r0, #MP1_6DRV_SR_OFFSET]

	ldr	r1, =0x0000AAAA
	str	r1, [r0, #MP1_7DRV_SR_OFFSET]

	ldr	r1, =0x00002AAA
	str	r1, [r0, #MP1_8DRV_SR_OFFSET]

	
	/* DMC1 Drive Strength (Setting 2X) */
	
	ldr	r0, =ELFIN_GPIO_BASE
	
	ldr	r1, =0x0000AAAA
	str	r1, [r0, #MP2_0DRV_SR_OFFSET]

	ldr	r1, =0x0000AAAA
	str	r1, [r0, #MP2_1DRV_SR_OFFSET]

	ldr	r1, =0x0000AAAA
	str	r1, [r0, #MP2_2DRV_SR_OFFSET]

	ldr	r1, =0x0000AAAA
	str	r1, [r0, #MP2_3DRV_SR_OFFSET]

	ldr	r1, =0x0000AAAA
	str	r1, [r0, #MP2_4DRV_SR_OFFSET]

	ldr	r1, =0x0000AAAA
	str	r1, [r0, #MP2_5DRV_SR_OFFSET]

	ldr	r1, =0x0000AAAA
	str	r1, [r0, #MP2_6DRV_SR_OFFSET]

	ldr	r1, =0x0000AAAA
	str	r1, [r0, #MP2_7DRV_SR_OFFSET]

	ldr	r1, =0x00002AAA
	str	r1, [r0, #MP2_8DRV_SR_OFFSET]
	
	/* DMC0 initialization at single Type*/
	ldr	r0, =APB_DMC_0_BASE

	ldr	r1, =0x00101000				@PhyControl0 DLL parameter setting, manual 0x00101000
	str	r1, [r0, #DMC_PHYCONTROL0]

	ldr	r1, =0x00000086				@PhyControl1 DLL parameter setting, LPDDR/LPDDR2 Case
	str	r1, [r0, #DMC_PHYCONTROL1]

	ldr	r1, =0x00101002				@PhyControl0 DLL on
	str	r1, [r0, #DMC_PHYCONTROL0]

	ldr	r1, =0x00101003				@PhyControl0 DLL start
	str	r1, [r0, #DMC_PHYCONTROL0]

find_lock_val:
	ldr	r1, [r0, #DMC_PHYSTATUS]		@Load Phystatus register value
	and	r2, r1, #0x7
	cmp	r2, #0x7				@Loop until DLL is locked
	bne	find_lock_val
	
	and	r1, #0x3fc0 
	mov	r2, r1, LSL #18
	orr	r2, r2, #0x100000
	orr	r2 ,r2, #0x1000	
		
	orr	r1, r2, #0x3				@Force Value locking
	str	r1, [r0, #DMC_PHYCONTROL0]
	
#if 0	/* Memory margin test 10.01.05 */
	orr	r1, r2, #0x1				@DLL off
	str	r1, [r0, #DMC_PHYCONTROL0]
#endif
	/* setting DDR2 */
	ldr	r1, =0x0FFF2010				@ConControl auto refresh off
	str	r1, [r0, #DMC_CONCONTROL]

	ldr	r1, =DMC0_MEMCONTROL			@MemControl BL=4, 1 chip, DDR2 type, dynamic self refresh, force precharge, dynamic power down off
	str	r1, [r0, #DMC_MEMCONTROL]
	
	ldr	r1, =DMC0_MEMCONFIG_0			@MemConfig0 256MB config, 8 banks,Mapping Method[12:15]0:linear, 1:linterleaved, 2:Mixed
	str	r1, [r0, #DMC_MEMCONFIG0]

	ldr	r1, =DMC0_MEMCONFIG_1			@MemConfig1
	str	r1, [r0, #DMC_MEMCONFIG1]

	ldr	r1, =0xFF000000				@PrechConfig
	str	r1, [r0, #DMC_PRECHCONFIG]
	
	ldr	r1, =DMC0_TIMINGA_REF			@TimingAref	7.8us*133MHz=1038(0x40E), 100MHz=780(0x30C), 20MHz=156(0x9C), 10MHz=78(0x4E)
	str	r1, [r0, #DMC_TIMINGAREF]
	
	ldr	r1, =DMC0_TIMING_ROW			@TimingRow	for @200MHz
	str	r1, [r0, #DMC_TIMINGROW]

	ldr	r1, =DMC0_TIMING_DATA			@TimingData	CL=3
	str	r1, [r0, #DMC_TIMINGDATA]
	
	ldr	r1, =DMC0_TIMING_PWR			@TimingPower
	str	r1, [r0, #DMC_TIMINGPOWER]

	ldr	r1, =0x07000000				@DirectCmd	chip0 Deselect
	str	r1, [r0, #DMC_DIRECTCMD]
	
	ldr	r1, =0x01000000				@DirectCmd	chip0 PALL
	str	r1, [r0, #DMC_DIRECTCMD]

	ldr	r1, =0x00020000				@DirectCmd	chip0 EMRS2
	str	r1, [r0, #DMC_DIRECTCMD]

	ldr	r1, =0x00030000				@DirectCmd	chip0 EMRS3
	str	r1, [r0, #DMC_DIRECTCMD]

	ldr	r1, =0x00010400				@DirectCmd	chip0 EMRS1 (MEM DLL on, DQS# disable)
	str	r1, [r0, #DMC_DIRECTCMD]

	ldr	r1, =0x00000542				@DirectCmd	chip0 MRS (MEM DLL reset) CL=4, BL=4
	str	r1, [r0, #DMC_DIRECTCMD]

	ldr	r1, =0x01000000				@DirectCmd	chip0 PALL
	str	r1, [r0, #DMC_DIRECTCMD]

	ldr	r1, =0x05000000				@DirectCmd	chip0 REFA
	str	r1, [r0, #DMC_DIRECTCMD]

	ldr	r1, =0x05000000				@DirectCmd	chip0 REFA
	str	r1, [r0, #DMC_DIRECTCMD]

	ldr	r1, =0x00000442				@DirectCmd	chip0 MRS (MEM DLL unreset)
	str	r1, [r0, #DMC_DIRECTCMD]

	ldr	r1, =0x00010780				@DirectCmd	chip0 EMRS1 (OCD default)
	str	r1, [r0, #DMC_DIRECTCMD]

	ldr	r1, =0x00010400				@DirectCmd	chip0 EMRS1 (OCD exit)
	str	r1, [r0, #DMC_DIRECTCMD]
	
	ldr	r1, =0x07100000				@DirectCmd	chip1 Deselect
	str	r1, [r0, #DMC_DIRECTCMD]

	ldr	r1, =0x01100000				@DirectCmd	chip1 PALL
	str	r1, [r0, #DMC_DIRECTCMD]
	
	ldr	r1, =0x00120000				@DirectCmd	chip1 EMRS2
	str	r1, [r0, #DMC_DIRECTCMD]
	
	ldr	r1, =0x00130000				@DirectCmd	chip1 EMRS3
	str	r1, [r0, #DMC_DIRECTCMD]
	
	ldr	r1, =0x00110400				@DirectCmd	chip1 EMRS1 (MEM DLL on, DQS# disable)
	str	r1, [r0, #DMC_DIRECTCMD]
	
	ldr	r1, =0x00100542				@DirectCmd	chip1 MRS (MEM DLL reset) CL=4, BL=4
	str	r1, [r0, #DMC_DIRECTCMD]
	
	ldr	r1, =0x01100000				@DirectCmd	chip1 PALL
	str	r1, [r0, #DMC_DIRECTCMD]
	
	ldr	r1, =0x05100000				@DirectCmd	chip1 REFA
	str	r1, [r0, #DMC_DIRECTCMD]
	
	ldr	r1, =0x05100000				@DirectCmd	chip1 REFA
	str	r1, [r0, #DMC_DIRECTCMD]
	
	ldr	r1, =0x00100442				@DirectCmd	chip1 MRS (MEM DLL unreset)
	str	r1, [r0, #DMC_DIRECTCMD]
	
	ldr	r1, =0x00110780				@DirectCmd	chip1 EMRS1 (OCD default)
	str	r1, [r0, #DMC_DIRECTCMD]
		
	ldr	r1, =0x00110400				@DirectCmd	chip1 EMRS1 (OCD exit)
	str	r1, [r0, #DMC_DIRECTCMD]
		
	ldr	r1, =0x0FF02030				@ConControl	auto refresh on
	str	r1, [r0, #DMC_CONCONTROL]
		
	ldr	r1, =0xFFFF00FF				@PwrdnConfig
	str	r1, [r0, #DMC_PWRDNCONFIG]
		
	ldr	r1, =0x00202400				@MemControl	BL=4, 2 chip, DDR2 type, dynamic self refresh, force precharge, dynamic power down off
	str	r1, [r0, #DMC_MEMCONTROL]
	
// 上面是DRAM0初始化步骤
/*******************************************************************************************/	
// 下面是DRAM1初始化步骤,两者没有联系,是并列的。

	/* DMC1 initialization */
	ldr	r0, =APB_DMC_1_BASE
	ldr	r1, =0x00101000				@Phycontrol0 DLL parameter setting
	str	r1, [r0, #DMC_PHYCONTROL0]

	
	ldr	r1, =0x00000086				@Phycontrol1 DLL parameter setting
	str	r1, [r0, #DMC_PHYCONTROL1]
	ldr	r1, =0x00101002				@PhyControl0 DLL on
	str	r1, [r0, #DMC_PHYCONTROL0]
	ldr	r1, =0x00101003				@PhyControl0 DLL start
	str	r1, [r0, #DMC_PHYCONTROL0]
	
	
	
find_lock_val1:
	ldr	r1, [r0, #DMC_PHYSTATUS]		@Load Phystatus register value
	and	r2, r1, #0x7
	cmp	r2, #0x7				@Loop until DLL is locked
	bne	find_lock_val1
	
	and	r1, #0x3fc0 
	mov	r2, r1, LSL #18
	orr	r2, r2, #0x100000
	orr	r2, r2, #0x1000
		
	orr	r1, r2, #0x3				@Force Value locking
	str	r1, [r0, #DMC_PHYCONTROL0]
	
#if 0	/* Memory margin test 10.01.05 */
	orr	r1, r2, #0x1				@DLL off
	str	r1, [r0, #DMC_PHYCONTROL0]
#endif

	/* settinf fot DDR2 */
	ldr	r0, =APB_DMC_1_BASE

	ldr	r1, =0x0FFF2010				@auto refresh off
	str	r1, [r0, #DMC_CONCONTROL]

	ldr	r1, =DMC1_MEMCONTROL			@MemControl	BL=4, 2 chip, DDR2 type, dynamic self refresh, force precharge, dynamic power down off
	str	r1, [r0, #DMC_MEMCONTROL]

	ldr	r1, =DMC1_MEMCONFIG_0			@MemConfig0	512MB config, 8 banks,Mapping Method[12:15]0:linear, 1:linterleaved, 2:Mixed
	str	r1, [r0, #DMC_MEMCONFIG0]

	ldr	r1, =DMC1_MEMCONFIG_1			@MemConfig1
	str	r1, [r0, #DMC_MEMCONFIG1]

	ldr	r1, =0xFF000000
	str	r1, [r0, #DMC_PRECHCONFIG]

	ldr	r1, =DMC1_TIMINGA_REF			@TimingAref	7.8us*133MHz=1038(0x40E), 100MHz=780(0x30C), 20MHz=156(0x9C), 10MHz=78(0x4
	str	r1, [r0, #DMC_TIMINGAREF]

	ldr	r1, =DMC1_TIMING_ROW			@TimingRow	for @200MHz
	str	r1, [r0, #DMC_TIMINGROW]

	ldr	r1, =DMC1_TIMING_DATA			@TimingData	CL=3
	str	r1, [r0, #DMC_TIMINGDATA]

	ldr	r1, =DMC1_TIMING_PWR			@TimingPower
	str	r1, [r0, #DMC_TIMINGPOWER]


	ldr	r1, =0x07000000				@DirectCmd	chip0 Deselect
	str	r1, [r0, #DMC_DIRECTCMD]

	ldr	r1, =0x01000000				@DirectCmd	chip0 PALL
	str	r1, [r0, #DMC_DIRECTCMD]

	ldr	r1, =0x00020000				@DirectCmd	chip0 EMRS2
	str	r1, [r0, #DMC_DIRECTCMD]

	ldr	r1, =0x00030000				@DirectCmd	chip0 EMRS3
	str	r1, [r0, #DMC_DIRECTCMD]

	ldr	r1, =0x00010400				@DirectCmd	chip0 EMRS1 (MEM DLL on, DQS# disable)
	str	r1, [r0, #DMC_DIRECTCMD]

	ldr	r1, =0x00000542				@DirectCmd	chip0 MRS (MEM DLL reset) CL=4, BL=4
	str	r1, [r0, #DMC_DIRECTCMD]

	ldr	r1, =0x01000000				@DirectCmd	chip0 PALL
	str	r1, [r0, #DMC_DIRECTCMD]

	ldr	r1, =0x05000000				@DirectCmd	chip0 REFA
	str	r1, [r0, #DMC_DIRECTCMD]

	ldr	r1, =0x05000000				@DirectCmd	chip0 REFA
	str	r1, [r0, #DMC_DIRECTCMD]

	ldr	r1, =0x00000442				@DirectCmd	chip0 MRS (MEM DLL unreset)
	str	r1, [r0, #DMC_DIRECTCMD]

	ldr	r1, =0x00010780				@DirectCmd	chip0 EMRS1 (OCD default)
	str	r1, [r0, #DMC_DIRECTCMD]

	ldr	r1, =0x00010400				@DirectCmd	chip0 EMRS1 (OCD exit)
	str	r1, [r0, #DMC_DIRECTCMD]

	ldr	r1, =0x07100000				@DirectCmd	chip1 Deselect
	str	r1, [r0, #DMC_DIRECTCMD]

	ldr	r1, =0x01100000				@DirectCmd	chip1 PALL
	str	r1, [r0, #DMC_DIRECTCMD]

	ldr	r1, =0x00120000				@DirectCmd	chip1 EMRS2
	str	r1, [r0, #DMC_DIRECTCMD]

	ldr	r1, =0x00130000				@DirectCmd	chip1 EMRS3
	str	r1, [r0, #DMC_DIRECTCMD]

	ldr	r1, =0x00110440				@DirectCmd	chip1 EMRS1 (MEM DLL on, DQS# disable)
	str	r1, [r0, #DMC_DIRECTCMD]

	ldr	r1, =0x00100542				@DirectCmd	chip1 MRS (MEM DLL reset) CL=4, BL=4
	str	r1, [r0, #DMC_DIRECTCMD]

	ldr	r1, =0x01100000				@DirectCmd	chip1 PALL
	str	r1, [r0, #DMC_DIRECTCMD]

	ldr	r1, =0x05100000				@DirectCmd	chip1 REFA
	str	r1, [r0, #DMC_DIRECTCMD]

	ldr	r1, =0x05100000				@DirectCmd	chip1 REFA
	str	r1, [r0, #DMC_DIRECTCMD]

	ldr	r1, =0x00100442				@DirectCmd	chip1 MRS (MEM DLL unreset)
	str	r1, [r0, #DMC_DIRECTCMD]

	ldr	r1, =0x00110780				@DirectCmd	chip1 EMRS1 (OCD default)
	str	r1, [r0, #DMC_DIRECTCMD]

	ldr	r1, =0x00110400				@DirectCmd	chip1 EMRS1 (OCD exit)
	str	r1, [r0, #DMC_DIRECTCMD]

	ldr	r1, =0x0FF02030				@ConControl	auto refresh on
	str	r1, [r0, #DMC_CONCONTROL]

	ldr	r1, =0xFFFF00FF				@PwrdnConfig	
	str	r1, [r0, #DMC_PWRDNCONFIG]

	ldr	r1, =DMC1_MEMCONTROL			@MemControl	BL=4, 2 chip, DDR2 type, dynamic self refresh, force precharge, dynamic power down off
	str	r1, [r0, #DMC_MEMCONTROL]
	// 函数返回
	mov pc, lr


s5pv210.h(硬件设备头文件):

/* S5PC110 device base addresses */
#define ELFIN_DMA_BASE 0xE0900000
#define ELFIN_LCD_BASE 0xF8000000
#define ELFIN_USB_HOST_BASE 0xEC200000
#define ELFIN_I2C_BASE 0xE1800000
#define ELFIN_I2S_BASE 0xE2100000
#define ELFIN_ADC_BASE 0xE1700000
#define ELFIN_SPI_BASE 0xE1300000




#define ELFIN_HSMMC_0_BASE 0xEB000000
#define ELFIN_HSMMC_1_BASE 0xEB100000
#define ELFIN_HSMMC_2_BASE 0xEB200000
#define ELFIN_HSMMC_3_BASE 0xEB300000


#define ELFIN_CLOCK_POWER_BASE 0xE0100000


#define IO_RET_REL ((1 << 31) | (1 << 29) | (1 << 28))


/* Clock & Power Controller for s5pc110*/
#define APLL_LOCK_OFFSET 0x00
#define MPLL_LOCK_OFFSET 0x08
#define EPLL_LOCK_OFFSET 0x10
#define VPLL_LOCK_OFFSET 0x20
#define APLL_CON0_OFFSET 0x100
#define APLL_CON1_OFFSET 0x104
#define MPLL_CON_OFFSET 0x108
#define EPLL_CON_OFFSET 0x110
#define VPLL_CON_OFFSET 0x120


#define CLK_SRC0_OFFSET 0x200
#define CLK_SRC1_OFFSET 0x204
#define CLK_SRC2_OFFSET 0x208
#define CLK_SRC3_OFFSET 0x20c
#define CLK_SRC4_OFFSET 0x210
#define CLK_SRC5_OFFSET 0x214
#define CLK_SRC6_OFFSET 0x218
#define CLK_SRC_MASK0_OFFSET 0x280
#define CLK_SRC_MASK1_OFFSET 0x284


#define CLK_DIV0_OFFSET 0x300
#define CLK_DIV1_OFFSET 0x304
#define CLK_DIV2_OFFSET 0x308
#define CLK_DIV3_OFFSET 0x30c
#define CLK_DIV4_OFFSET 0x310
#define CLK_DIV5_OFFSET 0x314
#define CLK_DIV6_OFFSET 0x318
#define CLK_DIV7_OFFSET 0x31c


#define CLK_GATE_IP0_OFFSET 0x460
#define CLK_GATE_IP1_OFFSET 0x464
#define CLK_GATE_IP2_OFFSET 0x468
#define CLK_GATE_IP3_OFFSET 0x46c
#define CLK_GATE_IP4_OFFSET 0x470
#define CLK_GATE_BLOCK_OFFSET 0x480


#define CLK_OUT_OFFSET 0x500
#define CLK_DIV_STAT0_OFFSET 0x1000
#define CLK_DIV_STAT1_OFFSET 0x1004
#define CLK_MUX_STAT0_OFFSET 0x1100
#define CLK_MUX_STAT1_OFFSET 0x1104
#define SW_RST_OFFSET 0x2000


#define ONEDRAM_CFG_OFFSET 0x6208


#define OSC_CON_OFFSET 0x8000
#define RST_STAT_OFFSET 0xa000
#define PWR_CFG_OFFSET 0xc000
#define EINT_WAKEUP_MASK_OFFSET 0xc004
#define WAKEUP_MASK_OFFSET 0xc008
#define NORMAL_CFG_OFFSET 0xc010
#define IDLE_CFG_OFFSET 0xc020
#define STOP_CFG_OFFSET 0xc030
#define STOP_MEM_CFG_OFFSET 0xc034
#define SLEEP_CFG_OFFSET 0xc040
#define OSC_FREQ_OFFSET 0xc100
#define OSC_STABLE_OFFSET 0xc104
#define PWR_STABLE_OFFSET 0xc108
#define MTC_STABLE_OFFSET 0xc110
#define CLAMP_STABLE_OFFSET 0xc114
#define WAKEUP_STAT_OFFSET 0xc200
#define BLK_PWR_STAT_OFFSET 0xc204
#define BODY_BIAS_CON_OFFSET 0xc300
#define ION_SKEW_CON_OFFSET 0xc310
#define ION_SKEW_MON_OFFSET 0xc314
#define IOFF_SKEW_CON_OFFSET 0xc320
#define IOFF_SKEW_MON_OFFSET 0xc324
#define OTHERS_OFFSET 0xe000
#define OM_STAT_OFFSET 0xe100
#define MIE_CONTROL_OFFSET 0xe800
#define HDMI_CONTROL_OFFSET 0xe804
#define USB_PHY_CONTROL_OFFSET 0xe80c
#define DAC_CONTROL_OFFSET 0xe810
#define MIPI_DPHY_CONTROL_OFFSET 0xe814
#define ADC_CONTROL_OFFSET 0xe818
#define PS_HOLD_CONTROL_OFFSET 0xe81c


#define INFORM0_OFFSET 0xf000
#define INFORM1_OFFSET 0xf004
#define INFORM2_OFFSET 0xf008
#define INFORM3_OFFSET 0xf00c
#define INFORM4_OFFSET 0xf010
#define INFORM5_OFFSET 0xf014
#define INFORM6_OFFSET 0xf018
#define INFORM7_OFFSET 0xf01c


#define INF_REG0_OFFSET 0x00
#define INF_REG1_OFFSET 0x04
#define INF_REG2_OFFSET 0x08
#define INF_REG3_OFFSET 0x0c
#define INF_REG4_OFFSET 0x10
#define INF_REG5_OFFSET 0x14
#define INF_REG6_OFFSET 0x18
#define INF_REG7_OFFSET 0x1c




/*
 * GPIO
 */
#define ELFIN_GPIO_BASE 0xE0200000




#define GPA0CON_OFFSET 0x000
#define GPA0DAT_OFFSET 0x004
#define GPA0PUD_OFFSET 0x008
#define GPA0DRV_SR_OFFSET 0x00C
#define GPA0CONPDN_OFFSET 0x010
#define GPA0PUDPDN_OFFSET 0x014


#define GPA1CON_OFFSET 0x020
#define GPA1DAT_OFFSET 0x024
#define GPA1PUD_OFFSET 0x028
#define GPA1DRV_SR_OFFSET 0x02C
#define GPA1CONPDN_OFFSET 0x030
#define GPA1PUDPDN_OFFSET 0x034


#define GPBCON_OFFSET 0x040
#define GPBDAT_OFFSET 0x044
#define GPBPUD_OFFSET 0x048
#define GPBDRV_SR_OFFSET 0x04C
#define GPBCONPDN_OFFSET 0x050
#define GPBPUDPDN_OFFSET 0x054


#define GPC0CON_OFFSET 0x060
#define GPC0DAT_OFFSET 0x064
#define GPC0PUD_OFFSET 0x068
#define GPC0DRV_SR_OFFSET 0x06C
#define GPC0CONPDN_OFFSET 0x070
#define GPC0PUDPDN_OFFSET 0x074


#define GPC1CON_OFFSET 0x080
#define GPC1DAT_OFFSET 0x084
#define GPC1PUD_OFFSET 0x088
#define GPC1DRV_SR_OFFSET 0x08C
#define GPC1CONPDN_OFFSET 0x090
#define GPC1PUDPDN_OFFSET 0x094


#define GPD0CON_OFFSET 0x0A0
#define GPD0DAT_OFFSET 0x0A4
#define GPD0PUD_OFFSET 0x0A8
#define GPD0DRV_SR_OFFSET 0x0AC
#define GPD0CONPDN_OFFSET 0x0B0
#define GPD0PUDPDN_OFFSET 0x0B4


#define GPD1CON_OFFSET 0x0C0
#define GPD1DAT_OFFSET 0x0C4
#define GPD1PUD_OFFSET 0x0C8
#define GPD1DRV_SR_OFFSET 0x0CC
#define GPD1CONPDN_OFFSET 0x0D0
#define GPD1PUDPDN_OFFSET 0x0D4


#define GPE0CON_OFFSET 0x0E0
#define GPE0DAT_OFFSET 0x0E4
#define GPE0PUD_OFFSET 0x0E8
#define GPE0DRV_SR_OFFSET 0x0EC
#define GPE0CONPDN_OFFSET 0x0F0
#define GPE0PUDPDN_OFFSET 0x0F4


#define GPE1CON_OFFSET 0x100
#define GPE1DAT_OFFSET 0x104
#define GPE1PUD_OFFSET 0x108
#define GPE1DRV_SR_OFFSET 0x10C
#define GPE1CONPDN_OFFSET 0x110
#define GPE1PUDPDN_OFFSET 0x114


#define GPF0CON_OFFSET 0x120
#define GPF0DAT_OFFSET 0x124
#define GPF0PUD_OFFSET 0x128
#define GPF0DRV_SR_OFFSET 0x12C
#define GPF0CONPDN_OFFSET 0x130
#define GPF0PUDPDN_OFFSET 0x134


#define GPF1CON_OFFSET 0x140
#define GPF1DAT_OFFSET 0x144
#define GPF1PUD_OFFSET 0x148
#define GPF1DRV_SR_OFFSET 0x14C
#define GPF1CONPDN_OFFSET 0x150
#define GPF1PUDPDN_OFFSET 0x154


#define GPF2CON_OFFSET 0x160
#define GPF2DAT_OFFSET 0x164
#define GPF2PUD_OFFSET 0x168
#define GPF2DRV_SR_OFFSET 0x16C
#define GPF2CONPDN_OFFSET 0x170
#define GPF2PUDPDN_OFFSET 0x174


#define GPF3CON_OFFSET 0x180
#define GPF3DAT_OFFSET 0x184
#define GPF3PUD_OFFSET 0x188
#define GPF3DRV_SR_OFFSET 0x18C
#define GPF3CONPDN_OFFSET 0x190
#define GPF3PUDPDN_OFFSET 0x194


#define GPG0CON_OFFSET 0x1A0
#define GPG0DAT_OFFSET 0x1A4
#define GPG0PUD_OFFSET 0x1A8
#define GPG0DRV_SR_OFFSET 0x1AC
#define GPG0CONPDN_OFFSET 0x1B0
#define GPG0PUDPDN_OFFSET 0x1B4


#define GPG1CON_OFFSET 0x1C0
#define GPG1DAT_OFFSET 0x1C4
#define GPG1PUD_OFFSET 0x1C8
#define GPG1DRV_SR_OFFSET 0x1CC
#define GPG1CONPDN_OFFSET 0x1D0
#define GPG1PUDPDN_OFFSET 0x1D4


#define GPG2CON_OFFSET 0x1E0
#define GPG2DAT_OFFSET 0x1E4
#define GPG2PUD_OFFSET 0x1E8
#define GPG2DRV_SR_OFFSET 0x1EC
#define GPG2CONPDN_OFFSET 0x1F0
#define GPG2PUDPDN_OFFSET 0x1F4


#define GPG3CON_OFFSET 0x200
#define GPG3DAT_OFFSET 0x204
#define GPG3PUD_OFFSET 0x208
#define GPG3DRV_SR_OFFSET 0x20C
#define GPG3CONPDN_OFFSET 0x210
#define GPG3PUDPDN_OFFSET 0x214


#define MP1_0DRV_SR_OFFSET 0x3CC
#define MP1_1DRV_SR_OFFSET 0x3EC
#define MP1_2DRV_SR_OFFSET 0x40C
#define MP1_3DRV_SR_OFFSET 0x42C
#define MP1_4DRV_SR_OFFSET 0x44C
#define MP1_5DRV_SR_OFFSET 0x46C
#define MP1_6DRV_SR_OFFSET 0x48C
#define MP1_7DRV_SR_OFFSET 0x4AC
#define MP1_8DRV_SR_OFFSET 0x4CC


#define MP2_0DRV_SR_OFFSET 0x4EC
#define MP2_1DRV_SR_OFFSET 0x50C
#define MP2_2DRV_SR_OFFSET 0x52C
#define MP2_3DRV_SR_OFFSET 0x54C
#define MP2_4DRV_SR_OFFSET 0x56C
#define MP2_5DRV_SR_OFFSET 0x58C
#define MP2_6DRV_SR_OFFSET 0x5AC
#define MP2_7DRV_SR_OFFSET 0x5CC
#define MP2_8DRV_SR_OFFSET 0x5EC


/* GPH0 */
#define GPH0CON_OFFSET 0xc00
#define GPH0DAT_OFFSET 0xc04
#define GPH0PUD_OFFSET 0xc08
#define GPH0DRV_OFFSET 0xc0c


/* GPH1 */
#define GPH1CON_OFFSET 0xc20
#define GPH1DAT_OFFSET 0xc24
#define GPH1PUD_OFFSET 0xc28
#define GPH1DRV_OFFSET 0xc2c


/* GPH2 */
#define GPH2CON_OFFSET 0xc40
#define GPH2DAT_OFFSET 0xc44
#define GPH2PUD_OFFSET 0xc48
#define GPH2DRV_OFFSET 0xc4c


/* GPH3 */
#define GPH3CON_OFFSET 0xc60
#define GPH3DAT_OFFSET 0xc64
#define GPH3PUD_OFFSET 0xc68
#define GPH3DRV_OFFSET 0xc6c




#define GPICON_OFFSET 0x220
#define GPIPUD_OFFSET 0x228
#define GPIDRV_OFFSET_SR 0x22C
#define GPIPUDPDN_OFFSET 0x234


#define GPJ0CON_OFFSET 0x240
#define GPJ0DAT_OFFSET 0x244
#define GPJ0PUD_OFFSET 0x248
#define GPJ0DRV_SR_OFFSET 0x24C
#define GPJ0CONPDN_OFFSET 0x250
#define GPJ0PUDPDN_OFFSET 0x254


#define GPJ1CON_OFFSET 0x260
#define GPJ1DAT_OFFSET 0x264
#define GPJ1PUD_OFFSET 0x268
#define GPJ1DRV_SR_OFFSET 0x26C
#define GPJ1CONPDN_OFFSET 0x270
#define GPJ1PUDPDN_OFFSET 0x274


#define GPJ2CON_OFFSET 0x280
#define GPJ2DAT_OFFSET 0x284
#define GPJ2PUD_OFFSET 0x288
#define GPJ2DRV_SR_OFFSET 0x28C
#define GPJ2CONPDN_OFFSET 0x290
#define GPJ2PUDPDN_OFFSET 0x294


#define GPJ3CON_OFFSET 0x2A0
#define GPJ3DAT_OFFSET 0x2A4
#define GPJ3PUD_OFFSET 0x2A8
#define GPJ3DRV_SR_OFFSET 0x2AC
#define GPJ3CONPDN_OFFSET 0x2B0
#define GPJ3PUDPDN_OFFSET 0x2B4


#define GPJ4CON_OFFSET 0x2C0
#define GPJ4DAT_OFFSET 0x2C4
#define GPJ4PUD_OFFSET 0x2C8
#define GPJ4DRV_SR_OFFSET 0x2CC
#define GPJ4CONPDN_OFFSET 0x2D0
#define GPJ4PUDPDN_OFFSET 0x2D4




/*
 * Interrupt
 */
#define ELFIN_VIC0_BASE_ADDR (0xF2000000)
#define ELFIN_VIC1_BASE_ADDR (0xF2100000)
#define ELFIN_VIC2_BASE_ADDR (0xF2200000)


#define ELFIN_TZIC0_BASE_ADDR (0xF2800000)
#define ELFIN_TZIC1_BASE_ADDR (0xF2900000)
#define ELFIN_TZIC2_BASE_ADDR (0xF2A00000)


#define oINTMOD (0x0C) // VIC INT SELECT (IRQ or FIQ)
#define oINTUNMSK (0x10) // VIC INT EN (Unmask by writing 1)
#define oINTMSK (0x14) // VIC INT EN CLEAR (Mask by writing 1)
#define oINTSUBMSK (0x1C) // VIC SOFT INT CLEAR
#define oVECTADDR (0xF00) // VIC ADDRESS


/*
 * Watchdog timer
 */
#define ELFIN_WATCHDOG_BASE 0xE2700000


#define WTCON_OFFSET 0x00
#define WTDAT_OFFSET 0x08
#define WTCNT_OFFSET 0x0C


#define WTCON_REG __REG(ELFIN_WATCHDOG_BASE+WTCON_OFFSET)
#define WTDAT_REG __REG(ELFIN_WATCHDOG_BASE+WTDAT_OFFSET)
#define WTCNT_REG __REG(ELFIN_WATCHDOG_BASE+WTCNT_OFFSET)


/*
 * UART
 */
#define ELFIN_UART_BASE 0XE2900000


#define ELFIN_UART0_OFFSET 0x0000
#define ELFIN_UART1_OFFSET 0x0400
#define ELFIN_UART2_OFFSET 0x0800
#define ELFIN_UART3_OFFSET 0x0c00


#if defined(CONFIG_SERIAL0)
#define ELFIN_UART_CONSOLE_BASE (ELFIN_UART_BASE + ELFIN_UART0_OFFSET)
#elif defined(CONFIG_SERIAL1)
#define ELFIN_UART_CONSOLE_BASE (ELFIN_UART_BASE + ELFIN_UART1_OFFSET)
#elif defined(CONFIG_SERIAL2)
#define ELFIN_UART_CONSOLE_BASE (ELFIN_UART_BASE + ELFIN_UART2_OFFSET)
#elif defined(CONFIG_SERIAL3)
#define ELFIN_UART_CONSOLE_BASE (ELFIN_UART_BASE + ELFIN_UART3_OFFSET)
#else
#define ELFIN_UART_CONSOLE_BASE (ELFIN_UART_BASE + ELFIN_UART0_OFFSET)
#endif


#define ULCON_OFFSET 0x00
#define UCON_OFFSET 0x04
#define UFCON_OFFSET 0x08
#define UMCON_OFFSET 0x0C
#define UTRSTAT_OFFSET 0x10
#define UERSTAT_OFFSET 0x14
#define UFSTAT_OFFSET 0x18
#define UMSTAT_OFFSET 0x1C
#define UTXH_OFFSET 0x20
#define URXH_OFFSET 0x24
#define UBRDIV_OFFSET 0x28
#define UDIVSLOT_OFFSET 0x2C
#define UINTP_OFFSET 0x30
#define UINTSP_OFFSET 0x34
#define UINTM_OFFSET 0x38


#define UTRSTAT_TX_EMPTY BIT2
#define UTRSTAT_RX_READY BIT0
#define UART_ERR_MASK 0xF




/*
 * PWM timer
 */
#define ELFIN_TIMER_BASE 0xE2500000


#define TCFG0_REG __REG(0xE2500000)
#define TCFG1_REG __REG(0xE2500004)
#define TCON_REG __REG(0xE2500008)
#define TCNTB0_REG __REG(0xE250000c)
#define TCMPB0_REG __REG(0xE2500010)
#define TCNTO0_REG __REG(0xE2500014)
#define TCNTB1_REG __REG(0xE2500018)
#define TCMPB1_REG __REG(0xE250001c)
#define TCNTO1_REG __REG(0xE2500020)
#define TCNTB2_REG __REG(0xE2500024)
#define TCMPB2_REG __REG(0xE2500028)
#define TCNTO2_REG __REG(0xE250002c)
#define TCNTB3_REG __REG(0xE2500030)
#define TCMPB3_REG __REG(0xE2500034)
#define TCNTO3_REG __REG(0xE2500038)
#define TCNTB4_REG __REG(0xE250003c)
#define TCNTO4_REG __REG(0xE2500040)
#define TINT_CSTAT __REG(0xE2500044)


/* Fields */
#define fTCFG0_DZONE Fld(8,16)       /* the dead zone length (= timer 0) */
#define fTCFG0_PRE1 Fld(8,8)        /* prescaler value for time 2,3,4 */
#define fTCFG0_PRE0 Fld(8,0)        /* prescaler value for time 0,1 */
#define fTCFG1_MUX4 Fld(4,16)
/* bits */
#define TCFG0_DZONE(x) FInsrt((x), fTCFG0_DZONE)
#define TCFG0_PRE1(x) FInsrt((x), fTCFG0_PRE1)
#define TCFG0_PRE0(x) FInsrt((x), fTCFG0_PRE0)
#define TCON_4_AUTO (1 << 22)       /* auto reload on/off for Timer 4 */
#define TCON_4_UPDATE (1 << 21)       /* manual Update TCNTB4 */
#define TCON_4_ONOFF (1 << 20)       /* 0: Stop, 1: start Timer 4 */
#define COUNT_4_ON (TCON_4_ONOFF*1)
#define COUNT_4_OFF (TCON_4_ONOFF*0)
#define TCON_3_AUTO (1 << 19)       /* auto reload on/off for Timer 3 */
#define TIMER3_ATLOAD_ON (TCON_3_AUTO*1)
#define TIMER3_ATLAOD_OFF FClrBit(TCON, TCON_3_AUTO)
#define TCON_3_INVERT (1 << 18)       /* 1: Inverter on for TOUT3 */
#define TIMER3_IVT_ON (TCON_3_INVERT*1)
#define TIMER3_IVT_OFF (FClrBit(TCON, TCON_3_INVERT))
#define TCON_3_MAN (1 << 17)       /* manual Update TCNTB3,TCMPB3 */
#define TIMER3_MANUP (TCON_3_MAN*1)
#define TIMER3_NOP (FClrBit(TCON, TCON_3_MAN))
#define TCON_3_ONOFF (1 << 16)       /* 0: Stop, 1: start Timer 3 */
#define TIMER3_ON (TCON_3_ONOFF*1)
#define TIMER3_OFF (FClrBit(TCON, TCON_3_ONOFF))
/* macros */
#define GET_PRESCALE_TIMER4(x) FExtr((x), fTCFG0_PRE1)
#define GET_DIVIDER_TIMER4(x) FExtr((x), fTCFG1_MUX4)




#define MP01CON_OFFSET 0x2E0
#define MP01DAT_OFFSET 0x2E4
#define MP01PUD_OFFSET 0x2E8
#define MP01DRV_SR_OFFSET 0x2EC
#define MP01CONPDN_OFFSET 0x2E0
#define MP01PUDPDN_OFFSET 0x2E4


#define MP02CON_OFFSET                  0x300
#define MP02DAT_OFFSET                  0x304
#define MP02PUD_OFFSET                  0x308
#define MP02DRV_SR_OFFSET               0x30c
#define MP02CONPDN_OFFSET               0x310
#define MP02PUDPDN_OFFSET               0x314


#define MP03CON_OFFSET                  0x320
#define MP03DAT_OFFSET                  0x324
#define MP03PUD_OFFSET                  0x328
#define MP03DRV_SR_OFFSET               0x32c
#define MP03CONPDN_OFFSET               0x330
#define MP03PUDPDN_OFFSET               0x334


#define MP06CON_OFFSET                  0x380
#define MP06DAT_OFFSET                  0x384
#define MP06PUD_OFFSET                  0x388
#define MP06DRV_SR_OFFSET               0x38C
#define MP06CONPDN_OFFSET               0x390
#define MP06PUDPDN_OFFSET               0x394


#define MP07CON_OFFSET                  0x3A0
#define MP07DAT_OFFSET                  0x3A4
#define MP07PUD_OFFSET                  0x3A8
#define MP07DRV_SR_OFFSET               0x3AC
#define MP07CONPDN_OFFSET               0x3B0
#define MP07PUDPDN_OFFSET               0x3B4




/*
 * Nand flash controller
 */
#define ELFIN_NAND_BASE 0xB0E00000
#define ELFIN_NAND_ECC_BASE 0xB0E20000


#define NFCONF_OFFSET           0x00
#define NFCONT_OFFSET           0x04
#define NFCMMD_OFFSET           0x08
#define NFADDR_OFFSET           0x0c
#define NFDATA_OFFSET 0x10
#define NFMECCDATA0_OFFSET       0x14
#define NFMECCDATA1_OFFSET       0x18
#define NFSECCDATA0_OFFSET       0x1c
#define NFSBLK_OFFSET           0x20
#define NFEBLK_OFFSET           0x24
#define NFSTAT_OFFSET           0x28
#define NFESTAT0_OFFSET         0x2c
#define NFESTAT1_OFFSET         0x30
#define NFMECC0_OFFSET           0x34
#define NFMECC1_OFFSET           0x38
#define NFSECC_OFFSET           0x3c
#define NFMLCBITPT_OFFSET       0x40
#define NFECCCONF_OFFSET 0x000 // R/W ECC configuration register 0x0000_0000
#define NFECCCONT_OFFSET 0x020 // R/W ECC control register 0x0000_0000
#define NFECCSTAT_OFFSET 0x030 // R ECC status register 0x0000_0000
#define NFECCSECSTAT_OFFSET 0x040 // R ECC sector status register 0x0000_0000
#define NFECCPRGECC0_OFFSET 0x090 // R ECC parity code0 register for page program 0x0000_0000
#define NFECCPRGECC1_OFFSET 0x094 // R ECC parity code1 register for page program 0x0000_0000
#define NFECCPRGECC2_OFFSET 0x098 // R ECC parity code2 register for page program 0x0000_0000
#define NFECCPRGECC3_OFFSET 0x09C // R ECC parity code3 register for page program 0x0000_0000
#define NFECCPRGECC4_OFFSET 0x0A0 // R ECC parity code4 register for page program 0x0000_0000
#define NFECCPRGECC5_OFFSET 0x0A4 // R ECC parity code5 register for page program 0x0000_0000
#define NFECCPRGECC6_OFFSET 0x0A8 // R ECC parity code6 register for page program 0x0000_0000
#define NFECCERL0_OFFSET 0x0C0 // R ECC error byte location0 register 0x0000_0000
#define NFECCERL1_OFFSET 0x0C4 // R ECC error byte location1 register 0x0000_0000
#define NFECCERL2_OFFSET 0x0C8 // R ECC error byte location2 register 0x0000_0000
#define NFECCERL3_OFFSET 0x0CC // R ECC error byte location3 register 0x0000_0000
#define NFECCERL4_OFFSET 0x0D0 // R ECC error byte location4 register 0x0000_0000
#define NFECCERL5_OFFSET 0x0D4 // R ECC error byte location5 register 0x0000_0000
#define NFECCERL6_OFFSET 0x0D8 // R ECC error byte location6 register 0x0000_0000
#define NFECCERL7_OFFSET 0x0DC // R ECC error byte location7 register 0x0000_0000
#define NFECCERP0_OFFSET 0x0F0 // R ECC error bit pattern0 register 0x0000_0000
#define NFECCERP1_OFFSET 0x0F4 // R ECC error bit pattern1 register 0x0000_0000
#define NFECCERP2_OFFSET 0x0F8 // R ECC error bit pattern2 register 0x0000_0000
#define NFECCERP3_OFFSET 0x0FC // R ECC error bit pattern3 register 0x0000_0000
#define NFECCCONECC0_OFFSET 0x110 // R/W ECC parity conversion code0 register 0x0000_0000
#define NFECCCONECC1_OFFSET 0x114 // R/W ECC parity conversion code1 register 0x0000_0000
#define NFECCCONECC2_OFFSET 0x118 // R/W ECC parity conversion code2 register 0x0000_0000
#define NFECCCONECC3_OFFSET 0x11C // R/W ECC parity conversion code3 register 0x0000_0000
#define NFECCCONECC4_OFFSET 0x120 // R/W ECC parity conversion code4 register 0x0000_0000
#define NFECCCONECC5_OFFSET 0x124 // R/W ECC parity conversion code5 register 0x0000_0000
#define NFECCCONECC6_OFFSET 0x128 // R/W ECC parity conversion code6 register 0x0000_0000


#define NFCONF (ELFIN_NAND_BASE+NFCONF_OFFSET)
#define NFCONT (ELFIN_NAND_BASE+NFCONT_OFFSET)
#define NFCMMD (ELFIN_NAND_BASE+NFCMMD_OFFSET)
#define NFADDR           (ELFIN_NAND_BASE+NFADDR_OFFSET)
#define NFDATA           (ELFIN_NAND_BASE+NFDATA_OFFSET)
#define NFMECCDATA0     (ELFIN_NAND_BASE+NFMECCDATA0_OFFSET)
#define NFMECCDATA1     (ELFIN_NAND_BASE+NFMECCDATA1_OFFSET)
#define NFSECCDATA0       (ELFIN_NAND_BASE+NFSECCDATA0_OFFSET)
#define NFSBLK           (ELFIN_NAND_BASE+NFSBLK_OFFSET)
#define NFEBLK           (ELFIN_NAND_BASE+NFEBLK_OFFSET)
#define NFSTAT           (ELFIN_NAND_BASE+NFSTAT_OFFSET)
#define NFESTAT0         (ELFIN_NAND_BASE+NFESTAT0_OFFSET)
#define NFESTAT1         (ELFIN_NAND_BASE+NFESTAT1_OFFSET)
#define NFMECC0           (ELFIN_NAND_BASE+NFMECC0_OFFSET)
#define NFMECC1           (ELFIN_NAND_BASE+NFMECC1_OFFSET)
#define NFSECC           (ELFIN_NAND_BASE+NFSECC_OFFSET)
#define NFMLCBITPT           (ELFIN_NAND_BASE+NFMLCBITPT_OFFSET)


#define NFECCCONF (ELFIN_NAND_ECC_BASE+NFECCCONF_OFFSET)
#define NFECCCONT (ELFIN_NAND_ECC_BASE+NFECCCONT_OFFSET)
#define NFECCSTAT (ELFIN_NAND_ECC_BASE+NFECCSTAT_OFFSET)
#define NFECCSECSTAT (ELFIN_NAND_ECC_BASE+NFECCSECSTAT_OFFSET)
#define NFECCPRGECC0 (ELFIN_NAND_ECC_BASE+NFECCPRGECC0_OFFSET)
#define NFECCPRGECC1 (ELFIN_NAND_ECC_BASE+NFECCPRGECC1_OFFSET)
#define NFECCPRGECC2 (ELFIN_NAND_ECC_BASE+NFECCPRGECC2_OFFSET)
#define NFECCPRGECC3 (ELFIN_NAND_ECC_BASE+NFECCPRGECC3_OFFSET)
#define NFECCPRGECC4 (ELFIN_NAND_ECC_BASE+NFECCPRGECC4_OFFSET)
#define NFECCPRGECC5 (ELFIN_NAND_ECC_BASE+NFECCPRGECC5_OFFSET)
#define NFECCPRGECC6 (ELFIN_NAND_ECC_BASE+NFECCPRGECC6_OFFSET)
#define NFECCERL0 (ELFIN_NAND_ECC_BASE+NFECCERL0_OFFSET)
#define NFECCERL1 (ELFIN_NAND_ECC_BASE+NFECCERL1_OFFSET)
#define NFECCERL2 (ELFIN_NAND_ECC_BASE+NFECCERL2_OFFSET)
#define NFECCERL3 (ELFIN_NAND_ECC_BASE+NFECCERL3_OFFSET)
#define NFECCERL4 (ELFIN_NAND_ECC_BASE+NFECCERL4_OFFSET)
#define NFECCERL5 (ELFIN_NAND_ECC_BASE+NFECCERL5_OFFSET)
#define NFECCERL6 (ELFIN_NAND_ECC_BASE+NFECCERL6_OFFSET)
#define NFECCERL7 (ELFIN_NAND_ECC_BASE+NFECCERL7_OFFSET)
#define NFECCERP0 (ELFIN_NAND_ECC_BASE+NFECCERP0_OFFSET)
#define NFECCERP1 (ELFIN_NAND_ECC_BASE+NFECCERP1_OFFSET)
#define NFECCERP2 (ELFIN_NAND_ECC_BASE+NFECCERP2_OFFSET)
#define NFECCERP3 (ELFIN_NAND_ECC_BASE+NFECCERP3_OFFSET)
#define NFECCCONECC0 (ELFIN_NAND_ECC_BASE+NFECCCONECC0_OFFSET)
#define NFECCCONECC1 (ELFIN_NAND_ECC_BASE+NFECCCONECC1_OFFSET)
#define NFECCCONECC2 (ELFIN_NAND_ECC_BASE+NFECCCONECC2_OFFSET)
#define NFECCCONECC3 (ELFIN_NAND_ECC_BASE+NFECCCONECC3_OFFSET)
#define NFECCCONECC4 (ELFIN_NAND_ECC_BASE+NFECCCONECC4_OFFSET)
#define NFECCCONECC5 (ELFIN_NAND_ECC_BASE+NFECCCONECC5_OFFSET)
#define NFECCCONECC6 (ELFIN_NAND_ECC_BASE+NFECCCONECC6_OFFSET)




#define NFCONF_REG __REG(ELFIN_NAND_BASE+NFCONF_OFFSET)
#define NFCONT_REG __REG(ELFIN_NAND_BASE+NFCONT_OFFSET)
#define NFCMD_REG __REG(ELFIN_NAND_BASE+NFCMMD_OFFSET)
#define NFADDR_REG           __REG(ELFIN_NAND_BASE+NFADDR_OFFSET)
#define NFDATA_REG           __REG(ELFIN_NAND_BASE+NFDATA_OFFSET)
#define NFDATA8_REG           __REGb(ELFIN_NAND_BASE+NFDATA_OFFSET)
#define NFMECCDATA0_REG     __REG(ELFIN_NAND_BASE+NFMECCDATA0_OFFSET)
#define NFMECCDATA1_REG     __REG(ELFIN_NAND_BASE+NFMECCDATA1_OFFSET)
#define NFSECCDATA0_REG       __REG(ELFIN_NAND_BASE+NFSECCDATA0_OFFSET)
#define NFSBLK_REG           __REG(ELFIN_NAND_BASE+NFSBLK_OFFSET)
#define NFEBLK_REG           __REG(ELFIN_NAND_BASE+NFEBLK_OFFSET)
#define NFSTAT_REG           __REG(ELFIN_NAND_BASE+NFSTAT_OFFSET)
#define NFESTAT0_REG         __REG(ELFIN_NAND_BASE+NFESTAT0_OFFSET)
#define NFESTAT1_REG         __REG(ELFIN_NAND_BASE+NFESTAT1_OFFSET)
#define NFMECC0_REG           __REG(ELFIN_NAND_BASE+NFMECC0_OFFSET)
#define NFMECC1_REG           __REG(ELFIN_NAND_BASE+NFMECC1_OFFSET)
#define NFSECC_REG           __REG(ELFIN_NAND_BASE+NFSECC_OFFSET)
#define NFMLCBITPT_REG         __REG(ELFIN_NAND_BASE+NFMLCBITPT_OFFSET)


#define NFCONF_ECC_MLC (1<<24)


#define NFCONF_ECC_1BIT (0<<23)
#define NFCONF_ECC_4BIT (2<<23)
#define NFCONF_ECC_8BIT (1<<23)


#define NFCONT_ECC_ENC (1<<18)
#define NFCONT_WP (1<<16)
#define NFCONT_MECCLOCK (1<<7)
#define NFCONT_SECCLOCK (1<<6)
#define NFCONT_INITMECC (1<<5)
#define NFCONT_INITSECC (1<<4)
#define NFCONT_INITECC (NFCONT_INITMECC | NFCONT_INITSECC)
#define NFCONT_CS (1<<1)
#define NFSTAT_ECCENCDONE (1<<25)
#define NFSTAT_ECCDECDONE (1<<24)
#define NFSTAT_RnB (1<<0)
#define NFESTAT0_ECCBUSY (1<<31)




/* Access Controller (TZPC) */
#define TZPC_DECPROT0SET_OFFSET 0x804
#define TZPC_DECPROT1SET_OFFSET 0x810
#define TZPC_DECPROT2SET_OFFSET 0x81C
#define TZPC_DECPROT3SET_OFFSET 0x828




/*************************************************************
 * OneNAND Controller
 *************************************************************/
#define ELFIN_ONENAND_BASE 0xB0000000
#define ELFIN_ONENANDCON_BASE (ELFIN_ONENAND_BASE + 0x600000)


#define ONENAND_IF_CTRL_OFFSET 0x100
#define ONENAND_IF_CMD_OFFSET 0x104
#define ONENAND_IF_ASYNC_TIMING_CTRL_OFFSET 0x108
#define ONENAND_IF_STATUS_OFFSET 0x10C
#define DMA_SRC_ADDR_OFFSET 0x400
#define DMA_SRC_CFG_OFFSET 0x404
#define DMA_DST_ADDR_OFFSET 0x408
#define DMA_DST_CFG_OFFSET 0x40C
#define DMA_TRANS_SIZE_OFFSET 0x414
#define DMA_TRANS_CMD_OFFSET 0x418
#define DMA_TRANS_STATUS_OFFSET 0x41C
#define DMA_TRANS_DIR_OFFSET 0x420
#define SQC_SAO_OFFSET 0x600
#define SQC_CMD_OFFSET 0x608
#define SQC_STATUS_OFFSET 0x60C
#define SQC_CAO_OFFSET 0x610
#define SQC_REG_CTRL_OFFSET 0x614
#define SQC_REG_VAL_OFFSET 0x618
#define SQC_BRPAO0_OFFSET 0x620
#define SQC_BRPAO1_OFFSET 0x624
#define INTC_SQC_CLR_OFFSET 0x1000
#define INTC_DMA_CLR_OFFSET 0x1004
#define INTC_ONENAND_CLR_OFFSET 0x1008
#define INTC_SQC_MASK_OFFSET 0x1020
#define INTC_DMA_MASK_OFFSET 0x1024
#define INTC_ONENAND_MASK_OFFSET 0x1028
#define INTC_SQC_PEND_OFFSET 0x1040
#define INTC_DMA_PEND_OFFSET 0x1044
#define INTC_ONENAND_PEND_OFFSET 0x1048
#define INTC_SQC_STATUS_OFFSET 0x1060
#define INTC_DMA_STATUS_OFFSET 0x1064
#define INTC_ONENAND_STATUS_OFFSET 0x1068


/*
 * Memory controller
 */
#define ELFIN_SROM_BASE 0xE8000000


#define SROM_BW_REG __REG(ELFIN_SROM_BASE+0x0)
#define SROM_BC0_REG __REG(ELFIN_SROM_BASE+0x4)
#define SROM_BC1_REG __REG(ELFIN_SROM_BASE+0x8)
#define SROM_BC2_REG __REG(ELFIN_SROM_BASE+0xC)
#define SROM_BC3_REG __REG(ELFIN_SROM_BASE+0x10)
#define SROM_BC4_REG __REG(ELFIN_SROM_BASE+0x14)
#define SROM_BC5_REG __REG(ELFIN_SROM_BASE+0x18)


/*
 * SDRAM Controller
 */
#define APB_DMC_0_BASE 0xF0000000
#define APB_DMC_1_BASE 0xF1400000
#define ASYNC_MSYS_DMC0_BASE 0xF1E00000


#define DMC_CONCONTROL 0x00
#define DMC_MEMCONTROL 0x04
#define DMC_MEMCONFIG0 0x08
#define DMC_MEMCONFIG1 0x0C
#define DMC_DIRECTCMD 0x10
#define DMC_PRECHCONFIG 0x14
#define DMC_PHYCONTROL0 0x18
#define DMC_PHYCONTROL1 0x1C
#define DMC_RESERVED 0x20
#define DMC_PWRDNCONFIG 0x28
#define DMC_TIMINGAREF 0x30
#define DMC_TIMINGROW 0x34
#define DMC_TIMINGDATA 0x38
#define DMC_TIMINGPOWER 0x3C
#define DMC_PHYSTATUS 0x40
#define DMC_CHIP0STATUS 0x48
#define DMC_CHIP1STATUS 0x4C
#define DMC_AREFSTATUS 0x50
#define DMC_MRSTATUS 0x54
#define DMC_PHYTEST0 0x58
#define DMC_PHYTEST1 0x5C
#define DMC_QOSCONTROL0 0x60
#define DMC_QOSCONFIG0 0x64
#define DMC_QOSCONTROL1 0x68
#define DMC_QOSCONFIG1 0x6C
#define DMC_QOSCONTROL2 0x70
#define DMC_QOSCONFIG2 0x74
#define DMC_QOSCONTROL3 0x78
#define DMC_QOSCONFIG3 0x7C
#define DMC_QOSCONTROL4 0x80
#define DMC_QOSCONFIG4 0x84
#define DMC_QOSCONTROL5 0x88
#define DMC_QOSCONFIG5 0x8C
#define DMC_QOSCONTROL6 0x90
#define DMC_QOSCONFIG6 0x94
#define DMC_QOSCONTROL7 0x98
#define DMC_QOSCONFIG7 0x9C
#define DMC_QOSCONTROL8 0xA0
#define DMC_QOSCONFIG8 0xA4
#define DMC_QOSCONTROL9 0xA8
#define DMC_QOSCONFIG9 0xAC
#define DMC_QOSCONTROL10 0xB0
#define DMC_QOSCONFIG10 0xB4
#define DMC_QOSCONTROL11 0xB8
#define DMC_QOSCONFIG11 0xBC
#define DMC_QOSCONTROL12 0xC0
#define DMC_QOSCONFIG12 0xC4
#define DMC_QOSCONTROL13 0xC8
#define DMC_QOSCONFIG13 0xCC
#define DMC_QOSCONTROL14 0xD0
#define DMC_QOSCONFIG14 0xD4
#define DMC_QOSCONTROL15 0xD8
#define DMC_QOSCONFIG15 0xDC




/*
* Memory Chip direct command
*/


/****************************************************************
 Definitions for memory configuration
 Set memory configuration
active_chips = 1'b0 (1 chip)
qos_master_chip  = 3'b000(ARID[3:0])
memory burst = 3'b010(burst 4)
stop_mem_clock = 1'b0(disable dynamical stop)
auto_power_down  = 1'b0(disable auto power-down mode)
power_down_prd = 6'b00_0000(0 cycle for auto power-down)
ap_bit = 1'b0 (bit position of auto-precharge is 10)
row_bits = 3'b010(# row address 13)
column_bits = 3'b010(# column address 10 )


 Set user configuration
2'b10=SDRAM/mSDRAM, 2'b11=DDR, 2'b01=mDDR


 Set chip select for chip [n]
row bank control, bank address 0x3000_0000 ~ 0x37ff_ffff
CHIP_[n]_CFG=0x30F8,  30: ADDR[31:24], F8: Mask[31:24]
******************************************************************/


#define INF_REG_BASE 0xE010F000


#define INF_REG0_REG __REG(INF_REG_BASE+INF_REG0_OFFSET)
#define INF_REG1_REG __REG(INF_REG_BASE+INF_REG1_OFFSET)
#define INF_REG2_REG __REG(INF_REG_BASE+INF_REG2_OFFSET)
#define INF_REG3_REG __REG(INF_REG_BASE+INF_REG3_OFFSET)
#define INF_REG4_REG __REG(INF_REG_BASE+INF_REG4_OFFSET)
#define INF_REG5_REG __REG(INF_REG_BASE+INF_REG5_OFFSET)
#define INF_REG6_REG __REG(INF_REG_BASE+INF_REG6_OFFSET)
#define INF_REG7_REG __REG(INF_REG_BASE+INF_REG7_OFFSET)


#define NFCONF_VAL (7<<12)|(7<<8)|(7<<4)|(0<<3)|(0<<2)|(1<<1)|(0<<0)
#define NFCONT_VAL      (0x1<<23)|(0x1<<22)|(0<<18)|(0<<17)|(0<<16)|(0<<10)|(0<<9)|(0<<8)|(0<<7)|(0<<6)|(0x2<<1)|(1<<0)
#define MP03CON_VAL (1<<29)|(1<<25)|(1<<21)|(1<<17)|(1<<13)|(1<<9)|(1<<5)|(1<<1)


#define ELFIN_TZPC0_BASE 0xF1500000
#define ELFIN_TZPC1_BASE 0xFAD00000
#define ELFIN_TZPC2_BASE 0xE0600000
#define ELFIN_TZPC3_BASE 0xE1C00000

你可能感兴趣的:(cortex-A8裸机编程)