📄 nand_write_yaffs.patch
字号:
+ data = (data << 8) | (*(uchar *) cp);+ }+ for (; i < port_width && cnt > 0; ++i) {+ data = (data << 8) | *src++;+ --cnt;+ ++cp;+ }+ for (; cnt == 0 && i < port_width; ++i, ++cp) {+ data = (data << 8) | (*(uchar *) cp); }- } - if (ctrlc ())- printf ("User Interrupt!\n");+ if ((rc = write_data (info, wp, data)) != 0) {+ return (rc);+ }+ wp += port_width;+ } - outahere:- /* allow flash to settle - wait 10 ms */- udelay_masked (10000);+ /*+ * handle word aligned part+ */+ count = 0;+ while (cnt >= port_width) {+ data = 0;+ for (i = 0; i < port_width; ++i) {+ data = (data << 8) | *src++;+ }+ if ((rc = write_data (info, wp, data)) != 0) {+ return (rc);+ }+ wp += port_width;+ cnt -= port_width;+ if (count++ > 0x800) {+ spin_wheel ();+ count = 0;+ }+ } - if (iflag)- enable_interrupts ();+ if (cnt == 0) {+ return (0);+ } - if (cflag)- icache_enable ();+ /*+ * handle unaligned tail bytes+ */+ data = 0;+ for (i = 0, cp = wp; i < port_width && cnt > 0; ++i, ++cp) {+ data = (data << 8) | *src++;+ --cnt;+ }+ for (; i < port_width; ++i, ++cp) {+ data = (data << 8) | (*(uchar *) cp);+ } - return rc;+ return (write_data (info, wp, data)); } /*------------------------------------------------------------------------ * Copy memory to flash+ * Write a word or halfword to Flash, returns:+ * 0 - OK+ * 1 - write timeout+ * 2 - Flash not erased */+static int write_data (flash_info_t * info, ulong dest, unsigned char data)+{+ volatile unsigned char *addr = (volatile unsigned char *) dest;+ ulong status;+ int flag;++ /* Check if Flash is (sufficiently) erased */+ if ((*addr & data) != data) {+ printf ("not erased at %08lx (%lx)\n", (ulong) addr,+ (ulong) * addr);+ return (2);+ }+ /* Disable interrupts which might cause a timeout here */+ flag = disable_interrupts (); -volatile static int write_hword (flash_info_t * info, ulong dest, ushort data)+ *addr = 0x40; /* write setup */+ *addr = data;++ /* arm simple, non interrupt dependent timer */+ reset_timer_masked ();++ /* wait while polling the status register */+ while (((status = *addr) & 0x80) != 0x80) {+ if (get_timer_masked () > CFG_FLASH_WRITE_TOUT) {+ *addr = 0xFF; /* restore read mode */+ return (1);+ }+ }++ *addr = 0xFF; /* restore read mode */++ return (0);+}++void inline spin_wheel (void) {- vu_short *addr = (vu_short *) dest;- ushort result;+ static int p = 0;+ static char w[] = "\\/-";++ printf ("\010%c", w[p]);+ (++p == 3) ? (p = 0) : 0;+}+#endif //if 0+static int write_word (flash_info_t * info, ulong dest, ushort data)+{+ vu_short *addr = (vu_short *) dest, val; int rc = ERR_OK;- int cflag, iflag;- int chip;+ int flag; - /*- * Check if Flash is (sufficiently) erased+ /* Check if Flash is (sufficiently) erased */- result = *addr;- if ((result & data) != data)+ if ((*addr & data) != data) return ERR_NOT_ERASED; - /* * Disable interrupts which might cause a timeout * here. Remember that our exception vectors are@@ -313,53 +431,58 @@ * (ticker) exception to happen while the flash * chip is in programming mode. */- cflag = icache_status ();- icache_disable ();- iflag = disable_interrupts ();-- MEM_FLASH_ADDR1 = CMD_UNLOCK1;- MEM_FLASH_ADDR2 = CMD_UNLOCK2;- MEM_FLASH_ADDR1 = CMD_UNLOCK_BYPASS;- *addr = CMD_PROGRAM;+ flag = disable_interrupts ();++ /* clear status register command */+ *addr = 0x50;++ /* program set-up command */+ *addr = 0x40;++ /* latch address/data */ *addr = data; /* arm simple, non interrupt dependent timer */ reset_timer_masked (); - /* wait until flash is ready */- chip = 0;- do {- result = *addr;-- /* check timeout */- if (get_timer_masked () > CFG_FLASH_ERASE_TOUT) {- chip = ERR | TMO;- break;+ /* wait while polling the status register */+ while (((val = *addr) & 0x80) != 0x80) {+ if (get_timer_masked () > CFG_FLASH_WRITE_TOUT) {+ rc = ERR_TIMOUT;+ /* suspend program command */+ *addr = 0xB0;+ goto outahere; }- if (!chip && ((result & 0x80) == (data & 0x80)))- chip = READY;-- if (!chip && ((result & 0xFFFF) & BIT_PROGRAM_ERROR)) {- result = *addr;+ } - if ((result & 0x80) == (data & 0x80))- chip = READY;- else- chip = ERR;+ if (val & 0x1A) { /* check for error */+ printf ("\nFlash write error %02x at address %08lx\n",+ (int) val, (unsigned long) dest);+ if (val & (1 << 3)) {+ printf ("Voltage range error.\n");+ rc = ERR_PROG_ERROR;+ goto outahere;+ }+ if (val & (1 << 1)) {+ printf ("Device protect error.\n");+ rc = ERR_PROTECTED;+ goto outahere;+ }+ if (val & (1 << 4)) {+ printf ("Programming error.\n");+ rc = ERR_PROG_ERROR;+ goto outahere; }-- } while (!chip);-- *addr = CMD_READ_ARRAY;-- if (chip == ERR || *addr != data) rc = ERR_PROG_ERROR;+ goto outahere;+ } - if (iflag)- enable_interrupts ();+outahere:+ /* read array command */+ *addr = 0xFF; - if (cflag)- icache_enable ();+ if (flag)+ enable_interrupts (); return rc; }@@ -371,9 +494,9 @@ int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt) { ulong cp, wp;+ ushort data; int l; int i, rc;- ushort data; wp = (addr & ~1); /* get lower word aligned address */ @@ -394,7 +517,7 @@ data = (data >> 8) | (*(uchar *) cp << 8); } - if ((rc = write_hword (info, wp, data)) != 0) {+ if ((rc = write_word (info, wp, data)) != 0) { return (rc); } wp += 2;@@ -405,7 +528,7 @@ */ while (cnt >= 2) { data = *((vu_short *) src);- if ((rc = write_hword (info, wp, data)) != 0) {+ if ((rc = write_word (info, wp, data)) != 0) { return (rc); } src += 2;@@ -429,5 +552,5 @@ data = (data >> 8) | (*(uchar *) cp << 8); } - return write_hword (info, wp, data);+ return write_word (info, wp, data); }diff -uNr u-boot-1.2.0/board/smdk2410/lowlevel_init.S bootloader/u-boot-1.2.0/board/smdk2410/lowlevel_init.S--- u-boot-1.2.0/board/smdk2410/lowlevel_init.S 2007-01-07 07:13:11.000000000 +0800+++ bootloader/u-boot-1.2.0/board/smdk2410/lowlevel_init.S 2007-04-24 15:09:06.000000000 +0800@@ -56,7 +56,7 @@ #define B3_BWSCON (DW16 + WAIT + UBLB) #define B4_BWSCON (DW16) #define B5_BWSCON (DW16)-#define B6_BWSCON (DW32)+#define B6_BWSCON (DW16) #define B7_BWSCON (DW32) /* BANK0CON */diff -uNr u-boot-1.2.0/board/smdk2410/Makefile bootloader/u-boot-1.2.0/board/smdk2410/Makefile--- u-boot-1.2.0/board/smdk2410/Makefile 2007-01-07 07:13:11.000000000 +0800+++ bootloader/u-boot-1.2.0/board/smdk2410/Makefile 2007-04-24 15:04:23.000000000 +0800@@ -25,7 +25,7 @@ LIB = $(obj)lib$(BOARD).a -COBJS := smdk2410.o flash.o+COBJS := smdk2410.o flash.o nand_read.o SOBJS := lowlevel_init.o SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c)diff -uNr u-boot-1.2.0/board/smdk2410/smdk2410.c bootloader/u-boot-1.2.0/board/smdk2410/smdk2410.c--- u-boot-1.2.0/board/smdk2410/smdk2410.c 2007-01-07 07:13:11.000000000 +0800+++ bootloader/u-boot-1.2.0/board/smdk2410/smdk2410.c 2007-04-25 11:35:54.000000000 +0800@@ -121,3 +121,131 @@ return 0; }+/*+ * NAND flash initialization.+ */+/* +#if (CONFIG_COMMANDS & CFG_CMD_NAND)+typedef enum {+ NFCE_LOW,+ NFCE_HIGH+} NFCE_STATE;+ +extern unsigned long nand_probe(unsigned long physadr);+ +static inline void NF_Reset(void)+{+ int i;+ + NF_SetCE(NFCE_LOW);+ NF_Cmd(0xFF); // reset command+ for(i = 0; i < 10; i++); // tWB = 100ns.+ NF_WaitRB(); // wait 200~500us;+ NF_SetCE(NFCE_HIGH);+}+static inline void NF_Init(void)+{+#if 0 // a little bit too optimistic+#define TACLS 0+#define TWRPH0 3+#define TWRPH1 0+#else+#define TACLS 0+#define TWRPH0 4+#define TWRPH1 2+#endif+ + NF_Conf((1<<15)|(0<<14)|(0<<13)|(1<<12)|(1<<11)|(TACLS<<8)|(TWRPH0<<4)|(TWRPH1<<0));+// NF_Conf((1<<15)|(1<<14)|(1<<13)|(1<<12)|(1<<11)|(TACLS<<8)|(TWRPH0<<4)|(TWRPH1<<0));+ // 1 1 1 1, 1 xxx, r xxx, r xxx+ // En 512B 4step ECCR nFCE=H tACLS tWRPH0 tWRPH1+ + NF_Reset();+}+void nand_init(void)+{+ S3C2410_NAND * const nand = S3C2410_GetBase_NAND();+ NF_Init();+ printf ("%4lu MB\n", nand_probe((ulong)nand) >> 20);+}+ +static void NF_Conf(u16 conf)+{+ S3C2410_NAND * const nand = S3C2410_GetBase_NAND();+ + nand->NFCONF = conf;+}+ +static void NF_Cmd(u8 cmd)+{+ S3C2410_NAND * const nand = S3C2410_GetBase_NAND();+ + nand->NFCMD = cmd;+}+ +static void NF_CmdW(u8 cmd)+{+ NF_Cmd(cmd);+ udelay(1);+}+ +static void NF_Addr(u8 addr)+{+ S3C2410_NAND * const nand = S3C2410_GetBase_NAND();+ + nand->NFADDR = addr;+}+ + +static void NF_SetCE(NFCE_STATE s)+{+ S3C2410_NAND * const nand = S3C2410_GetBase_NAND();+ + switch (s) {+ case NFCE_LOW:+ nand->NFCONF &= ~(1<<11);+ break;+ + case NFCE_HIGH:+ nand->NFCONF |= (1<<11);+ break;+ }+}+ +static void NF_WaitRB(void)+{+ S3C2410_NAND * const nand = S3C2410_GetBase_NAND();+ + while (!(nand->NFSTAT & (1<<0)));+}+ +static void NF_Write(u8 data)+{+ S3C2410_NAND * const nand = S3C2410_GetBase_NAND();+ + nand->NFDATA = data;+}+ +static u8 NF_Read(void)+{+ S3C2410_NAND * const nand = S3C2410_GetBase_NAND();+ + return(nand->NFDATA);+}+ +static void NF_Init_ECC(void)+{+ S3C2410_NAND * const nand = S3C2410_GetBase_NAND();+ + nand->NFCONF |= (1<<12);+}+ +static u32 NF_Read_ECC(void)+{+ S3C2410_NAND * const nand = S3C2410_GetBase_NAND();+ + return(nand->NFECC);+}+ +#endif+*/diff -uNr u-boot-1.2.0/common/cmd_boot.c bootloader/u-boot-1.2.0/common/cmd_boot.c--- u-boot-1.2.0/common/cmd_boot.c 2007-01-07 07:13:11.000000000 +0800+++ bootloader/u-boot-1.2.0/common/cmd_boot.c 2007-04-24 15:04:23.000000000 +0800@@ -28,14 +28,15 @@ #include <command.h> #include <net.h> -#if defined(CONFIG_I386)+//#if defined(CONFIG_I386) //HHTECH wk DECLARE_GLOBAL_DATA_PTR;-#endif+//#endif //HHTECH wk int do_go (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) { ulong addr, rc; int rcode = 0;+ struct param_struct *params = gd->bd->bi_boot_params; if (argc < 2) { printf ("Usage:\n%s\n", cmdtp->usage);@@ -56,9 +57,16 @@ * to the global_data */ argv[0] = (char *)gd;+ #endif #if !defined(CONFIG_NIOS)- rc = ((ulong (*)(int, char *[]))addr) (--argc, &argv[1]);+/////////////////////////////////////HHTECH wk/////////////////////////+// setup_linux_param(/*boot_mem_base*/0x30000000 + 0x100);+ params->u1.s.page_size = 4096;+ memcpy(params->commandline, CONFIG_BOOTARGS, strlen(CONFIG_BOOTARGS) + 1);⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -