The document discusses modifying u-boot source code to port it to the Mango64 board based on the S3C6410 processor. It describes adding board configuration files, modifying hardware initialization code, and updating macros and definitions to support the board's hardware. Key files modified include the Makefile, device tree, board initialization code, and board-specific configuration header. The goal is to enable features like SD card detection and eventually add other functionality supported by the port.

1. (mango64:s3c6410& u-boot) u-boot 업그레이드 하기-1<br />삼성에서 받은 u-boot를 소스를 망고64보드에 맞게 끔 수정을 해 보겠습니다. <br />SD card인식이 됩니다. <br />다른 기능은 포팅을 하면서 살펴 보겠습니다. <br />우선 <br />소스 압축을 풀어서, 소스에 가장 Top 디렉토리에 있는 Makefile에서 <br />아래와 같이 추가를 합니다. <br />mango6410_config : unconfig @$(MKCONFIG) $(@:_config=) arm s3c64xx mango6410 crztech s3c6410 @echo quot;
TEXT_BASE = 0x57e00000quot;
> $(obj)board/crztech/mango6410/config.mk<br />참조자료는 <br />http://cafe.naver.com/embeddedcrazyboys/7000<br />디렉토리를 추가 및 아래와 같이 copy합니다. <br />mkdir -p board/crztech/mango6410cp -a board/samsung/smdk6410/* board/crztech/mango6410/mv board/crztech/mango6410/smdk6410.c mango6410.cmkdir board/crztech/commoncp -a board/samsung/common/* board/crztech/common/<br />“board/crztech/mango6410/Makefile”을 열어서 수정<br />OBJS := mango6410.o flash.o<br />“vi board/crztech/mango6410/u-boot.lds” 수정<br />board/crztech/mango6410/lowlevel_init.o (.text)<br />“common/cmd_onenand.c” 수정 (망고6410은 onenand가 없으므로)<br />COBJS-$(CONFIG_CMD_ONENAND) += cmd_onenand.o<br />그리고, “include/configs”에 mango6410.h을 만듭니다. 만드는 방법 <br />cp include/configs/smdk6410.h include/configs/mango6410.h<br />“vi board/crztech/mango6410/mango6410.c” 파일 수정<br />/* ------------------------------------------------------------------------- */#define SMSC9220_Tacs(0x0)// 0clkaddress set-up#define SMSC9220_Tcos(0x4)// 4clkchip selection set-up#define SMSC9220_Tacc(0xE)// 14clkaccess cycle#define SMSC9220_Tcoh(0x1)// 1clkchip selection hold#define SMSC9220_Tah(0x4)// 4clkaddress holding time#define SMSC9220_Tacp(0x6)// 6clkpage mode access cycle#define SMSC9220_PMC(0x0)// normal(1data)page mode configurationstatic inline void delay(unsigned long loops){__asm__ volatile (quot;
1:quot;
quot;
subs %0, %1, #1quot;
quot;
bne 1bquot;
:quot;
=rquot;
(loops):quot;
0quot;
(loops));}/* * Miscellaneous platform dependent initialisations *//* mango64 use SROM bank 4 for Ethernet */#define SMSC9220_SROM_BANK_4static void smsc9220_pre_init(void){#if defined(SMSC9220_SROM_BANK_1)SROM_BW_REG &= ~(0xf << 4);SROM_BW_REG |= (1<<7) | (1<<6) | (1<<4);SROM_BC1_REG = ((SMSC9220_Tacs<<28)+(SMSC9220_Tcos<<24)+(SMSC9220_Tacc<<16)+(SMSC9220_Tcoh<<12)+(SMSC9220_Tah<<8)+(SMSC9220_Tacp<<4)+(SMSC9220_PMC));#elif defined(SMSC9220_SROM_BANK_2)SROM_BW_REG &= ~(0xf << 8);SROM_BW_REG |= (1<<11) | (1<<10) | (1<<8);SROM_BC2_REG = ((SMSC9220_Tacs<<28)+(SMSC9220_Tcos<<24)+(SMSC9220_Tacc<<16)+(SMSC9220_Tcoh<<12)+(SMSC9220_Tah<<8)+(SMSC9220_Tacp<<4)+(SMSC9220_PMC));#elif defined(SMSC9220_SROM_BANK_3)SROM_BW_REG &= ~(0xf << 12);SROM_BW_REG |= (1<<15) | (1<<14) | (1<<12);SROM_BC3_REG = ((SMSC9220_Tacs<<28)+(SMSC9220_Tcos<<24)+(SMSC9220_Tacc<<16)+(SMSC9220_Tcoh<<12)+(SMSC9220_Tah<<8)+(SMSC9220_Tacp<<4)+(SMSC9220_PMC));#elif defined(SMSC9220_SROM_BANK_4)SROM_BW_REG &= ~(0xf << 16);SROM_BW_REG |= (1<<19) | (1<<18) | (1<<16);SROM_BC4_REG = ((SMSC9220_Tacs<<28)+(SMSC9220_Tcos<<24)+(SMSC9220_Tacc<<16)+(SMSC9220_Tcoh<<12)+(SMSC9220_Tah<<8)+(SMSC9220_Tacp<<4)+(SMSC9220_PMC));#elif defined(SMSC9220_SROM_BANK_5)SROM_BW_REG &= ~(0xf << 20);SROM_BW_REG |= (1<<23) | (1<<22) | (1<<20);SROM_BC5_REG = ((SMSC9220_Tacs<<28)+(SMSC9220_Tcos<<24)+(SMSC9220_Tacc<<16)+(SMSC9220_Tcoh<<12)+(SMSC9220_Tah<<8)+(SMSC9220_Tacp<<4)+(SMSC9220_PMC));#endif}int board_init(void){DECLARE_GLOBAL_DATA_PTR;smsc9220_pre_init();gd->bd->bi_arch_number = MACH_TYPE;gd->bd->bi_boot_params = (PHYS_SDRAM_1+0x100);#if 0icache_enable();dcache_enable();#endifreturn 0;}<br />망고6410(S3C6410) 하드웨어 맞게 “include/configs/mango6410.h”을 수정을 합니다. <br />수정 부분은 <br />//#define CONFIG_ENABLE_MMU#define CONFIG_SERIAL2 1/* we use SERIAL 1 on mango6410 */#define USBD_DOWN_ADDR0x50000000//#undef CONFIG_NET_MULTI#define CONFIG_DRIVER_SMC911X1 // MANGO64#ifdef CONFIG_DRIVER_SMC911X#define CONFIG_DRIVER_SMC911X_16_BIT#undefCONFIG_DRIVER_CS8900#define CONFIG_DRIVER_SMC911X_BASE0x30000300#define CFG_PROMPTquot;
MANGO64 # quot;
/* Monitor Command Prompt*/#define CONFIG_IDENT_STRINGquot;
for MANGO6410quot;
//#define CFG_NAND_HWECC#undefCFG_NAND_FLASH_BBT//#define CONFIG_NAND_BL1_8BIT_ECC#define USE_MMC1//#define CONFIG_CMD_ONENAND//#define DEBUG_S3C_HSMMC<br />USB OTG로 다운로드 기능 추가<br />자세한 내용은 Mango64 & U-boot)DNW(usb-otg)로 이미지 다운로드 하기 를 참조하세요<br />수정한 소스만 넣어 보겠습니다. <br />“./cpu/s3c64xx/usbd-otg-hs.c” 파일에 아래와 같이 수정을 합니다. <br />void s3c_usb_init_phy(void){writel(0x0, S3C_OTG_PHYPWR); //if 48Mhz Oscillator is used //writel(0x20, S3C_OTG_PHYCTRL); //if 48Mhz X-tal is used writel(0x00, S3C_OTG_PHYCTRL);writel(0x1, S3C_OTG_RSTCON);udelay(10);writel(0x0, S3C_OTG_RSTCON);udelay(10);}int s3c_usbctl_init(void){u8 ucMode;DBG_SETUP0(quot;
USB Control Initquot;
);OTHERS_REG |= (1<<16);/*unmask usb signal *///by crazyboy begin writel(readl(GPNPUD) & ~(3<<12), GPNPUD); // GPN6 Pull-up/dn disable - (00 - disable) writel((readl(GPNCON) & ~(3<<12)) | (1<<12), GPNCON); //set GPN6 to output (01) writel(readl(GPNDAT) | (1<<6), GPNDAT); //set GPN6 to high//by crazyboy end<br />수정 후 컴파일 해서 Target에 올려보겠습니다.<br />컴파일 순서 <br />#make mango6410_config#make <br />원본 소스 다운로드<br />업데이트 된 소스 다운로드 <br />두개의 소스를 비교하면, 재미있을 것입니다. <br />푸우님이 작성한 u-boot 포팅하기를 참조하시면, 많은 도움이 될 것입니다. <br />(ARM S3C6410) 망고64에 u-boot 포팅하기 (1) HYPERLINK quot;
http://cafe.naver.com/embeddedcrazyboys/5271(ARMquot;
quot;
http://cafe.naver.com/embeddedcrazyboys/5271(ARMquot;
S3C6410) 망고64에 u-boot 포팅하기 (2)(ARM S3C6410) 망고64에 u-boot 포팅하기 (3)(ARM S3C6410) 망고64에 u-boot 포팅하기 (4)(ARM S3C6410) 망고64에 u-boot 포팅하기 (5) HYPERLINK quot;
http://cafe.naver.com/embeddedcrazyboys/5307quot;
quot;
http://cafe.naver.com/embeddedcrazyboys/5307quot;
(ARM S3C6410) 망고64에 u-boot 포팅하기 (6) - 최종<br />