课件(UBOOT制作指导)
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bne clear_loop
mov pc, lr
#endif @ CONFIG_S3C2410_NAND_BOOT
在文件的最后加入：
.align 2
DW_STACK_START:
.word STACK_BASE+STACK_SIZE-4
9）修改include/configs/bks2410.h文件，添加如下内容：
@ r1: length
mem_clear:
mov r2, #0
mov r3, r2
mov r4, r2
mov r5,ห้องสมุดไป่ตู้r2
mov r6, r2
mov r7, r2
mov r8, r2
mov r9, r2
clear_loop:
stmia r0!, {r2-r9}
subs r1, r1, #(8 * 4)
.word ((B0_Tacs<<13)+(B0_Tcos<<11)+(B0_Tacc<<8)+(B0_Tcoh<<6)+(B0_Tah<<4)+(B0_Tacp<<2)+(B0_PMC))
.word ((B1_Tacs<<13)+(B1_Tcos<<11)+(B1_Tacc<<8)+(B1_Tcoh<<6)+(B1_Tah<<4)+(B1_Tacp<<2)+(B1_PMC))
configarmarm920tbks2410nulls3c24x0我把我的板子起名叫bks2410可以依自己的喜好修改3建立boardbks2410目录拷贝boardsmdk2410下的文件到boardbks2410目录将smdk2410c更名为bks2410c4cpincludeconfigssmdk2410hincludeconfigsbks2410h5测试编译能否成功
teq r3, r4
bne notmatch
subs r2, r2, #4
beq done_nand_read
bne go_next
notmatch:
#ifdef CONFIG_DEBUG_LL
sub r0, r0, #4
ldr r1, SerBase
bl PrintHexWord
ldr r0, STR_FAIL
我把我的板子起名叫bks2410，可以依自己的喜好修改
3）建立board/bks2410目录，拷贝board/smdk2410下的文件到board/bks2410目录，将smdk2410.c更名为bks2410.c
4）cp include/configs/smdk2410.h include/configs/bks2410.h
ldr r1, SerBase
bl PrintWord
#endif
@ verify
mov r0, #0
ldr r1, =UBOOT_RAM_BASE
mov r2, #0x400 @ 4 bytes * 1024 = 4K-bytes
go_next:
ldr r3, [r0], #4
ldr r4, [r1], #4
.word ((B4_Tacs<<13)+(B4_Tcos<<11)+(B4_Tacc<<8)+(B4_Tcoh<<6)+(B4_Tah<<4)+(B4_Tacp<<2)+(B4_PMC))
.word ((B5_Tacs<<13)+(B5_Tcos<<11)+(B5_Tacc<<8)+(B5_Tcoh<<6)+(B5_Tah<<4)+(B5_Tacp<<2)+(B5_PMC))
/*
* Nandflash Boot
*/
#define CONFIG_S3C2410_NAND_BOOT 1
#define STACK_BASE 0x33f00000
#define STACK_SIZE 0x8000
#define UBOOT_RAM_BASE 0x33f80000
/* NAND Flash Controller */
嵌入式系统第13课――UBOOT制作指导
1）u-boot版本1.1.3，gcc version 3.3.3 (DENX ELDK 3.1.1 3.3.3-9)
2）在Makefile中加入
bks2410_config : unconfig
@./mkconfig $(@:_config=) arm arm920t bks2410 NULL s3c24x0
.word ((B2_Tacs<<13)+(B2_Tcos<<11)+(B2_Tacc<<8)+(B2_Tcoh<<6)+(B2_Tah<<4)+(B2_Tacp<<2)+(B2_PMC))
.word 0x1f7c/*((B3_Tacs<<13)+(B3_Tcos<<11)+(B3_Tacc<<8)+(B3_Tcoh<<6)+(B3_Tah<<4)+(B3_Tacp<<2)+(B3_PMC))*/
tst r2, #0x1
beq 2b
ldr r2, [r1, #oNFCONF]
orr r2, r2, #0x800 @ disable chip
str r2, [r1, #oNFCONF]
@ get read to call C functions (for nand_read())
ldr sp, DW_STACK_START @ setup stack pointer
mov fp, #0 @ no previous frame, so fp=0
@ copy vivi to RAM
ldr r0, =UBOOT_RAM_BASE
mov r1, #0x0
mov r2, #0x20000
bl nand_read_ll
tst r0, #0x0
beq ok_nand_read
#define NAND_CTL_BASE 0x4E000000
#define bINT_CTL(Nb) __REG(INT_CTL_BASE + (Nb))
/* Offset */
#define oNFCONF 0x00
#define oNFCMD 0x04
#define oNFADDR 0x08
bl copy_myself
@ jump to ram
ldr r1, =on_the_ram
add pc, r1, #0
nop
nop
1: b 1b @ infinite loop
on_the_ram:
#endif
在_start_armboot: .word start_armboot之后加入：
#ifdef CONFIG_S3C2410_NAND_BOOT
.word ((B6_MT<<15)+(B6_Trcd<<2)+(B6_SCAN))
.word ((B7_MT<<15)+(B7_Trcd<<2)+(B7_SCAN))
.word ((REFEN<<23)+(TREFMD<<22)+(Trp<<20)+(Trc<<18)+(Tchr<<16)+REFCNT)
In: serial
Out: serial
Err: serial
BKS2410 #
copy_myself:
mov r10, lr
@ reset NAND
mov r1, #NAND_CTL_BASE
ldr r2, =0xf830 @ initial value
str r2, [r1, #oNFCONF]
ldr r2, [r1, #oNFCONF]
bic r2, r2, #0x800 @ enable chip
5）测试编译能否成功：
make bks2410_config
make all ARCH=arm
生成u-boot.bin就OK了
6）依照你自己开发板的内存地址分配情况修改board/bks2410/memsetup.S文件，修改SMRDATA中各个参数的值（根据VIVI的值）。
SMRDATA:
.word (0+(B1_BWSCON<<4)+(B2_BWSCON<<8)+(B3_BWSCON<<12)+(B4_BWSCON<<16)+(B5_BWSCON<<20)+(B6_BWSCON<<24)+(B7_BWSCON<<28))
#define oNFDATA 0x0c
#define oNFSTAT 0x10
#define oNFECC 0x14
10）重新编译u-boot
make all ARCH=arm
11）通过jtag将u-boot烧写到flash中就可以从NAND flash启动了
u-boot启动信息如下：
U-Boot 1.1.3 (May 6 2006 - 18:13:59)
.word 0x31
.word 0x30
.word 0x30
7）在board/bks2410加入NAND Flash读函数，建立nand_read.c，内容和VIVI中相应文件一样。
8）修改cpu/arm920t/start.S文件
在ldr pc, _start_armboot之前加入：
#ifdef CONFIG_S3C2410_NAND_BOOT
#ifdef CONFIG_DEBUG_LL
bad_nand_read:
ldr r0, STR_FAIL
ldr r1, SerBase
bl PrintWord
1:b 1b @ infinite loop
#endif
ok_nand_read:
#ifdef CONFIG_DEBUG_LL
ldr r0, STR_OK
str r2, [r1, #oNFCONF]
mov r2, #0xff @ RESET command
strb r2, [r1, #oNFCMD]
mov r3, #0 @ wait
1:add r3, r3, #0x1
cmp r3, #0xa
blt 1b
2:ldr r2, [r1, #oNFSTAT] @ wait ready
U-Boot code: 33F80000 -> 33F967C4 BSS: -> 33F9AAAC
RAM Configuration:
Bank #0: 30000000 64 MB
Flash: 512 kB
*** Warning - bad CRC, using default environment
ldr r1, SerBase
bl PrintWord
#endif
1:b 1b
done_nand_read:
#ifdef CONFIG_DEBUG_LL
ldr r0, STR_OK
ldr r1, SerBase
bl PrintWord
#endif
mov pc, r10
@ clear memory
@ r0: start address
mov pc, lr
#endif @ CONFIG_S3C2410_NAND_BOOT
在文件的最后加入：
.align 2
DW_STACK_START:
.word STACK_BASE+STACK_SIZE-4
9）修改include/configs/bks2410.h文件，添加如下内容：
@ r1: length
mem_clear:
mov r2, #0
mov r3, r2
mov r4, r2
mov r5,ห้องสมุดไป่ตู้r2
mov r6, r2
mov r7, r2
mov r8, r2
mov r9, r2
clear_loop:
stmia r0!, {r2-r9}
subs r1, r1, #(8 * 4)
.word ((B0_Tacs<<13)+(B0_Tcos<<11)+(B0_Tacc<<8)+(B0_Tcoh<<6)+(B0_Tah<<4)+(B0_Tacp<<2)+(B0_PMC))
.word ((B1_Tacs<<13)+(B1_Tcos<<11)+(B1_Tacc<<8)+(B1_Tcoh<<6)+(B1_Tah<<4)+(B1_Tacp<<2)+(B1_PMC))
configarmarm920tbks2410nulls3c24x0我把我的板子起名叫bks2410可以依自己的喜好修改3建立boardbks2410目录拷贝boardsmdk2410下的文件到boardbks2410目录将smdk2410c更名为bks2410c4cpincludeconfigssmdk2410hincludeconfigsbks2410h5测试编译能否成功
teq r3, r4
bne notmatch
subs r2, r2, #4
beq done_nand_read
bne go_next
notmatch:
#ifdef CONFIG_DEBUG_LL
sub r0, r0, #4
ldr r1, SerBase
bl PrintHexWord
ldr r0, STR_FAIL
我把我的板子起名叫bks2410，可以依自己的喜好修改
3）建立board/bks2410目录，拷贝board/smdk2410下的文件到board/bks2410目录，将smdk2410.c更名为bks2410.c
4）cp include/configs/smdk2410.h include/configs/bks2410.h
ldr r1, SerBase
bl PrintWord
#endif
@ verify
mov r0, #0
ldr r1, =UBOOT_RAM_BASE
mov r2, #0x400 @ 4 bytes * 1024 = 4K-bytes
go_next:
ldr r3, [r0], #4
ldr r4, [r1], #4
.word ((B4_Tacs<<13)+(B4_Tcos<<11)+(B4_Tacc<<8)+(B4_Tcoh<<6)+(B4_Tah<<4)+(B4_Tacp<<2)+(B4_PMC))
.word ((B5_Tacs<<13)+(B5_Tcos<<11)+(B5_Tacc<<8)+(B5_Tcoh<<6)+(B5_Tah<<4)+(B5_Tacp<<2)+(B5_PMC))
/*
* Nandflash Boot
*/
#define CONFIG_S3C2410_NAND_BOOT 1
#define STACK_BASE 0x33f00000
#define STACK_SIZE 0x8000
#define UBOOT_RAM_BASE 0x33f80000
/* NAND Flash Controller */
嵌入式系统第13课――UBOOT制作指导
1）u-boot版本1.1.3，gcc version 3.3.3 (DENX ELDK 3.1.1 3.3.3-9)
2）在Makefile中加入
bks2410_config : unconfig
@./mkconfig $(@:_config=) arm arm920t bks2410 NULL s3c24x0
.word ((B2_Tacs<<13)+(B2_Tcos<<11)+(B2_Tacc<<8)+(B2_Tcoh<<6)+(B2_Tah<<4)+(B2_Tacp<<2)+(B2_PMC))
.word 0x1f7c/*((B3_Tacs<<13)+(B3_Tcos<<11)+(B3_Tacc<<8)+(B3_Tcoh<<6)+(B3_Tah<<4)+(B3_Tacp<<2)+(B3_PMC))*/
tst r2, #0x1
beq 2b
ldr r2, [r1, #oNFCONF]
orr r2, r2, #0x800 @ disable chip
str r2, [r1, #oNFCONF]
@ get read to call C functions (for nand_read())
ldr sp, DW_STACK_START @ setup stack pointer
mov fp, #0 @ no previous frame, so fp=0
@ copy vivi to RAM
ldr r0, =UBOOT_RAM_BASE
mov r1, #0x0
mov r2, #0x20000
bl nand_read_ll
tst r0, #0x0
beq ok_nand_read
#define NAND_CTL_BASE 0x4E000000
#define bINT_CTL(Nb) __REG(INT_CTL_BASE + (Nb))
/* Offset */
#define oNFCONF 0x00
#define oNFCMD 0x04
#define oNFADDR 0x08
bl copy_myself
@ jump to ram
ldr r1, =on_the_ram
add pc, r1, #0
nop
nop
1: b 1b @ infinite loop
on_the_ram:
#endif
在_start_armboot: .word start_armboot之后加入：
#ifdef CONFIG_S3C2410_NAND_BOOT
.word ((B6_MT<<15)+(B6_Trcd<<2)+(B6_SCAN))
.word ((B7_MT<<15)+(B7_Trcd<<2)+(B7_SCAN))
.word ((REFEN<<23)+(TREFMD<<22)+(Trp<<20)+(Trc<<18)+(Tchr<<16)+REFCNT)
In: serial
Out: serial
Err: serial
BKS2410 #
copy_myself:
mov r10, lr
@ reset NAND
mov r1, #NAND_CTL_BASE
ldr r2, =0xf830 @ initial value
str r2, [r1, #oNFCONF]
ldr r2, [r1, #oNFCONF]
bic r2, r2, #0x800 @ enable chip
5）测试编译能否成功：
make bks2410_config
make all ARCH=arm
生成u-boot.bin就OK了
6）依照你自己开发板的内存地址分配情况修改board/bks2410/memsetup.S文件，修改SMRDATA中各个参数的值（根据VIVI的值）。
SMRDATA:
.word (0+(B1_BWSCON<<4)+(B2_BWSCON<<8)+(B3_BWSCON<<12)+(B4_BWSCON<<16)+(B5_BWSCON<<20)+(B6_BWSCON<<24)+(B7_BWSCON<<28))
#define oNFDATA 0x0c
#define oNFSTAT 0x10
#define oNFECC 0x14
10）重新编译u-boot
make all ARCH=arm
11）通过jtag将u-boot烧写到flash中就可以从NAND flash启动了
u-boot启动信息如下：
U-Boot 1.1.3 (May 6 2006 - 18:13:59)
.word 0x31
.word 0x30
.word 0x30
7）在board/bks2410加入NAND Flash读函数，建立nand_read.c，内容和VIVI中相应文件一样。
8）修改cpu/arm920t/start.S文件
在ldr pc, _start_armboot之前加入：
#ifdef CONFIG_S3C2410_NAND_BOOT
#ifdef CONFIG_DEBUG_LL
bad_nand_read:
ldr r0, STR_FAIL
ldr r1, SerBase
bl PrintWord
1:b 1b @ infinite loop
#endif
ok_nand_read:
#ifdef CONFIG_DEBUG_LL
ldr r0, STR_OK
str r2, [r1, #oNFCONF]
mov r2, #0xff @ RESET command
strb r2, [r1, #oNFCMD]
mov r3, #0 @ wait
1:add r3, r3, #0x1
cmp r3, #0xa
blt 1b
2:ldr r2, [r1, #oNFSTAT] @ wait ready
U-Boot code: 33F80000 -> 33F967C4 BSS: -> 33F9AAAC
RAM Configuration:
Bank #0: 30000000 64 MB
Flash: 512 kB
*** Warning - bad CRC, using default environment
ldr r1, SerBase
bl PrintWord
#endif
1:b 1b
done_nand_read:
#ifdef CONFIG_DEBUG_LL
ldr r0, STR_OK
ldr r1, SerBase
bl PrintWord
#endif
mov pc, r10
@ clear memory
@ r0: start address