URL https://opencores.org/ocsvn/openrisc_2011-10-31/openrisc_2011-10-31/trunk

Subversion Repositories openrisc_2011-10-31

[/] [openrisc/] [trunk/] [bootloaders/] [orpmon/] [cmds/] [load.c] - Blame information for rev 437

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#include "common.h"
#include "support.h"
#include "flash.h"
#include "net.h"
#include "uart.h"
#include "dosfs.h"
#include "spr-defs.h"
 
#ifndef MAX_IMAGES
#define MAX_IMAGES 20
#endif
 
extern unsigned long fprog_addr;
extern char *tftp_filename;
 
static flash_cfg_struct gcfg =
    { BOARD_DEF_IP, BOARD_DEF_MASK, BOARD_DEF_GW, BOARD_DEF_TBOOT_SRVR };
 
// Not booting from flash, so just set these from board.h -- jb
//static flash_cfg_struct __attribute__ ((section(".config"))) gcfg = { BOARD_DEF_IP, BOARD_DEF_MASK, BOARD_DEF_GW,  BOARD_DEF_TBOOT_SRVR };
//static flash_cfg_struct __attribute__ ((section(".config"))) gcfg = { 0, 0, 0, 0 };
 
#define FLASH_IMAGES_BASE 0xf0300000
 
#define ALIGN(addr,size) ((addr + (size-1))&(~(size-1)))
// If the image buffer is word aligned, then uncomment this, but it was set up 
// so that the tftp images would download quicker
#define COPY_AND_BOOT_WORD_ALIGNED
#ifdef COPY_AND_BOOT_WORD_ALIGNED
void copy_and_boot(unsigned long src,
                   unsigned long dst, unsigned long len, int tx_next)
{
        __asm__ __volatile__("   ;\
        l.addi  r8,r0,0x1  ;\
        l.mtspr r0,r8,0x11  ;\
        l.nop               ;\
        l.nop               ;\
        l.nop               ;\
        l.nop               ;\
        l.nop               ;\
2:                          ;\
        l.sfgeu r4,r5       ;\
        l.bf    1f          ;\
        l.nop               ;\
        l.lwz   r8,0(r3)    ;\
        l.sw    0(r4),r8    ;\
        l.addi  r3,r3,4     ;\
        l.j     2b          ;\
        l.addi  r4,r4,4     ;\
1:      l.sw    0x0(r0),r6  ;\
        l.ori   r8,r0,0x100 ;\
        l.jr    r8          ;\
        l.nop");
}
#else
void copy_and_boot(unsigned long src,
                   unsigned long dst, unsigned long len, int tx_next)
{
        __asm__ __volatile__("   ;\
        l.addi  r8,r0,0x1  ;\
        l.mtspr r0,r8,0x11  ;\
        l.nop               ;\
        l.nop               ;\
        l.nop               ;\
        l.nop               ;\
        l.nop               ;\
2:                          ;\
        l.sfgeu r4,r5       ;\
        l.bf    1f          ;\
        l.nop               ;\
        l.lbz   r8,0(r3)    ;\
        l.sb    0(r4),r8    ;\
        l.addi  r3,r3,1     ;\
        l.j     2b          ;\
        l.addi  r4,r4,1     ;\
1:      l.sw    0x0(r0),r6  ;\
        l.ori   r8,r0,0x100 ;\
        l.jr    r8          ;\
        l.nop");
}
#endif
/* WARNING: stack and non-const globals should not be used in this function
   -- it may corrupt what have we loaded;
   start_addr should be 0xffffffff if only copying should be made
   no return, when start_addr != 0xffffffff, if successful */
int copy_memory_run(register unsigned long src_addr,
                    register unsigned long dst_addr,
                    register unsigned long length,
                    register int erase, register unsigned long start_addr)
{
        unsigned long i, flags;
 
        register char *dst = (char *)dst_addr;
        register const char *src = (const char *)src_addr;
 
        if (dst_addr >= FLASH_BASE_ADDR) {
                if (dst_addr + length >= FLASH_BASE_ADDR + FLASH_SIZE) {
                        printf("error: region does not fit into flash.\n");
                        return 1;
                }
#ifndef CFG_IN_FLASH
                fl_program(src_addr, dst_addr, length, erase,
                           1 /* do verify */ );
#else
                /* we must disable interrupts! */
                flags = mfspr(SPR_SR);
                mtspr(SPR_SR, flags & ~(SPR_SR_TEE | SPR_SR_IEE));
 
                printf("Unlocking flash... ");
                for (i = 0; i < length; i += FLASH_BLOCK_SIZE)
                        fl_ext_unlock(dst_addr + i);
                printf("done\n");
 
                printf("Erasing flash... ");
                for (i = 0; i < length; i += FLASH_BLOCK_SIZE)
                        fl_ext_erase(dst_addr + i);
                printf("done\n");
 
                printf("Programing flash:\n\t");
                for (i = 0; i < length; i += INC_ADDR) {
                        if (((i + INC_ADDR) % 1000) == 0)
                                printf("#");
                        if ((i % (65 * 1000)) == 0)
                                printf("\n\t");
                        if (fl_ext_program
                            (dst_addr + i, reg_read(src_addr + i))) {
                                printf("error programing at 0x%08lx!\n",
                                       dst_addr + i);
                                return 1;
                        }
                }
                printf("Verifying flash... ");
                for (i = 0; i < length; i += INC_ADDR) {
                        if (reg_read(dst_addr + i) != reg_read(src_addr + i)) {
                                printf("error at %08lx: %08lx != %08lx\n",
                                       src_addr + i, reg_read(src_addr + i),
                                       reg_read(dst_addr + i));
                                return 1;
                        }
                }
                printf("OK!\n");
                mtspr(SPR_SR, flags);
#endif
                if (start_addr == 0xffffffff)
                        return 0;
        } else {
                while (length--)
                        *dst++ = *src++;
                if (start_addr == 0xffffffff)
                        return 0;
        }
        /* Run the program */
        ((void (*)(void))start_addr) ();
        return 0;                /* just to satisfy the cc */
}
 
void bf_jump(unsigned long addr)
{
        asm("l.jr   r3");
        asm("l.nop  0x0");
}
 
int boot_flash_cmd(int argc, char *argv[])
{
        unsigned long addr, val, jaddr;
        addr = 17;
        val = 0;
        /* clear SR */
 
asm("l.mtspr %0,%1,0": :"r"(addr), "r"(val));
        /* jump */
        if (argc == 0)
                bf_jump(FLASH_BASE_ADDR + 0x100);
        else {
                jaddr = strtoul(argv[0], 0, 0);
                bf_jump(jaddr);
        }
        return 0;
}
 
void init_load(void)
{
#if 0                           // JB - removing flash stuff
#  ifdef CFG_IN_FLASH
        copy_memory_run((unsigned long)&fl_word_program,
                        (unsigned long)&fprog_addr, 95, 0, 0xffffffff);
        copy_memory_run((unsigned long)&fl_block_erase,
                        (unsigned long)&fprog_addr + 96, 119, 0, 0xffffffff);
        copy_memory_run((unsigned long)&fl_unlock_one_block,
                        (unsigned long)&fprog_addr + 96 + 120, 115, 0,
                        0xffffffff);
 
        fl_ext_program = (t_fl_ext_program) & fprog_addr;
        fl_ext_erase = (t_fl_erase) & fprog_addr + 96;
        fl_ext_unlock = (t_fl_erase) & fprog_addr + 96 + 120;
 
#    if 0
        printf("fl_word_program(): 0x%x\tfl_ext_program(): 0x%x\n",
               &fl_word_program, fl_ext_program);
        printf("fl_block_erase: 0x%x\tfl_ext_erase(): 0x%x\n",
               &fl_block_erase, fl_ext_erase);
        printf("fl_unlock_one_block(): 0x%x\tfl_ext_unlock(): 0x%x\n",
               &fl_unlock_one_block, fl_ext_unlock);
#    endif
 
#  else /* not CFG_IN_FLASH */
        fl_ext_program = (t_fl_ext_program) & fl_word_program;
        fl_ext_erase = (t_fl_erase) & fl_block_erase;
        fl_ext_unlock = (t_fl_erase) & fl_unlock_one_block;
#  endif /* CFG_IN_FLASH */
#endif
 
        /*
           global.ip = gcfg.eth_ip;
           global.gw_ip = gcfg.eth_gw;
           global.mask = gcfg.eth_mask;
           global.srv_ip = gcfg.tftp_srv_ip;
           global.src_addr = 0x100000;
           tftp_filename = "boot.img";
         */
 
        global.ip = BOARD_DEF_IP;
        global.gw_ip = BOARD_DEF_GW;
        global.mask = BOARD_DEF_MASK;
        global.srv_ip = BOARD_DEF_TBOOT_SRVR;
        global.src_addr = BOARD_DEF_LOAD_SPACE;
        tftp_filename = BOARD_DEF_IMAGE_NAME;
 
        /*memcpy(tftp_filename, gcfg.tftp_filename, strlen(gcfg.tftp_filename));
           tftp_filename[strlen(gcfg.tftp_filename)] = '\0'; */
}
 
int tftp_cmd(int argc, char *argv[])
{
        switch (argc) {
        case 0:
                tftp_filename = "boot.img";
                break;
        case 3:
                global.src_addr = strtoul(argv[2], 0, 0);
        case 2:
                global.srv_ip = parse_ip(argv[1]);
        case 1:
                tftp_filename = &argv[0][0];
                break;
        }
 
        NetLoop(TFTP);          // TFTP is enumerated value in net.h
 
        return 0;
}
 
int tftp_conf_cmd(int argc, char *argv[])
{
        switch (argc) {
        case 0:
                printf("Image filename: %s", tftp_filename);
                printf("\nSrc addr: 0x%lx", global.src_addr);
                printf("\nServer IP: %s", inet_ntoa(global.srv_ip));
                return 0;
        case 3:
                global.src_addr = strtoul(argv[2], 0, 0);
                global.srv_ip = inet_aton(argv[1]);
                tftp_filename = argv[0];
                tftp_filename[strlen(argv[0])] = '\0';
                break;
        case 2:
                global.srv_ip = inet_aton(argv[1]);
                tftp_filename = argv[0];
                break;
        case 1:
                tftp_filename = argv[0];
                break;
        }
        return 0;
}
 
void save_global_cfg(flash_cfg_struct cfg)
{
        unsigned long dst = (unsigned long)&gcfg, src = (unsigned long)&cfg;
        unsigned long i, end, flags;
 
        end = (unsigned long)&cfg + sizeof(flash_cfg_struct);
 
        printf("Saving global cfg from 0x%lx (end: 0x%lx) to 0x%lx...", src,
               end, dst);
 
        /* we must disable interrupts! */
        flags = mfspr(SPR_SR);
        mtspr(SPR_SR, flags & ~(SPR_SR_TEE | SPR_SR_IEE));
        /*  printf("Unlocking... "); */
        for (i = 0; (src + i <= end); i += FLASH_BLOCK_SIZE) {
                fl_ext_unlock(dst + i);
        }
        /*  printf("done\n"); */
        /*  printf("Erasing... "); */
        for (i = 0; (src + i <= end); i += FLASH_BLOCK_SIZE)
                fl_ext_erase(dst);
        /*  printf("done\n"); */
        /*  printf("Programing... "); */
        for (i = 0; (src + i <= end); i += INC_ADDR) {
                if (fl_ext_program(dst + i, reg_read(src + i))) {
                        printf("Error ocurred while saving.\n");
                        return;
                }
        }
        printf("done\n");
 
        /* and than enable it back */
        mtspr(SPR_SR, flags);
        return;
}
 
int save_conf_cmd(int argc, char *argv[])
{
        flash_cfg_struct newCfg;
 
        newCfg = gcfg;
 
        newCfg.eth_ip = global.ip;
        newCfg.eth_mask = global.mask;
        newCfg.eth_gw = global.gw_ip;
        newCfg.tftp_srv_ip = global.srv_ip;
        /*  memcpy(newCfg.tftp_filename, tftp_filename, strlen(tftp_filename)); */
 
        save_global_cfg(newCfg);
        return 0;
}
 
int copy_cmd(int argc, char *argv[])
{
        switch (argc) {
        case 3:
                global.src_addr = strtoul(argv[2], 0, 0);
        case 2:
                global.length = strtoul(argv[2], 0, 0);
        case 1:
                global.src_addr = strtoul(argv[2], 0, 0);
        case 0:
                return copy_memory_run(global.src_addr, global.dst_addr,
                                       global.length, global.erase_method,
                                       0xffffffff);
        }
        return -1;
}
 
void images_info(void)
{
        int i;
        printf("Number of images: 0x%lx\n", gcfg.img_number);
        for (i = 0; i < gcfg.img_number; i++)
                printf("%d. image size: 0x%lx (at 0x%08lx)\n", i + 1,
                       gcfg.img_length[i], gcfg.img_start_addr[i]);
}
 
/*
 * get_good_addr()
 *
 * Here we try to find the most suitable place for our image. We search for
 * a hole between images, that is big enough (but as small as possible).
 *
 */
unsigned long get_good_addr(unsigned int size)
{
        unsigned long start_addr[MAX_IMAGES], end_addr[MAX_IMAGES];
        unsigned long free[MAX_IMAGES], st_addr[MAX_IMAGES];
        unsigned long tmpval;
        unsigned int i = 0, j;
 
        flash_cfg_struct myCfg;
        myCfg = gcfg;
 
        /* we are full */
        if (gcfg.img_number == MAX_IMAGES)
                return 0xffffffff;
 
        if (gcfg.img_number == 0)
                return FLASH_IMAGES_BASE;
 
        for (i = 0; i < MAX_IMAGES; i++) {
                start_addr[i] = 0;
                end_addr[i] = 0;
                free[i] = 0;
                st_addr[i] = 0;
        }
 
        for (i = 0; i < myCfg.img_number; i++) {
                start_addr[i] = myCfg.img_start_addr[i];
                end_addr[i] =
                    ALIGN((myCfg.img_start_addr[i] + myCfg.img_length[i]),
                          FLASH_BLOCK_SIZE);
        }
        /*  printf("\n");
           for(i = 0; i < myCfg.img_number; i++)
           printf("start: 0x%08x, end: 0x%08x\n", start_addr[i], end_addr[i]);
           printf("\n"); */
        /* bubble sorting by start_addr */
 
        for (j = myCfg.img_number - 1; j > 0; j--)
                for (i = 0; i < j; i++)
                        if (start_addr[i] > start_addr[i + 1]) {
                                tmpval = start_addr[i];
                                start_addr[i] = start_addr[i + 1];
                                start_addr[i + 1] = tmpval;
                                tmpval = end_addr[i];
                                end_addr[i] = end_addr[i + 1];
                                end_addr[i + 1] = tmpval;
                        }
 
        /*  for(i = 0; i < myCfg.img_number; i++)
           printf("start: 0x%08x, end: 0x%08x\n", start_addr[i], end_addr[i]);
           printf("\n"); */
 
        /* now we calculate free space betwens segments */
        for (i = 1; i < myCfg.img_number; i++) {
                st_addr[i] = end_addr[i - 1];
                free[i] = start_addr[i] - end_addr[i - 1];
        }
 
        /* here we calcuta first position (starting with FLASH_IMAGES_BASE)... */
        st_addr[0] = FLASH_IMAGES_BASE + 0;
        free[0] = start_addr[0] - FLASH_IMAGES_BASE;
        /* ... and last one (ending with FLASH_IMAGES_BASE + FLASH_SIZE). */
        st_addr[myCfg.img_number] = end_addr[myCfg.img_number - 1];
        free[myCfg.img_number] = (FLASH_IMAGES_BASE + FLASH_SIZE) -
            end_addr[myCfg.img_number - 1];
 
        /* yet another bubble sort by free (space) */
        for (j = myCfg.img_number; j > 0; j--)
                for (i = 0; i < j; i++)
                        if (free[i] > free[i + 1]) {
                                tmpval = free[i];
                                free[i] = free[i + 1];
                                free[i + 1] = tmpval;
                                tmpval = st_addr[i];
                                st_addr[i] = st_addr[i + 1];
                                st_addr[i + 1] = tmpval;
                        }
 
        /* now we pick the smallest but just big enough for our size */
        for (i = 0; i <= myCfg.img_number; i++)
                if (free[i] >= size)
                        return st_addr[i];
 
        /* there is not enough space (in one segment) left */
        return 0;
}
 
unsigned long prepare_img_data(unsigned int num, unsigned int size)
{
        int i;
        unsigned long addr = 0;
        flash_cfg_struct newCfg;
 
        newCfg = gcfg;
 
        if (newCfg.img_number >= MAX_IMAGES) {
                printf("Maximum images exceeded: %d\n", MAX_IMAGES);
                return 0xffffffff;
        }
 
        newCfg.img_number++;
 
        if ((num > newCfg.img_number) || (num == 0))
                num = newCfg.img_number;
 
        addr = get_good_addr(size);
        if (addr == 0x00) {
                printf
                    ("Can not find suitable place in flash. (None of free segments are big enough)\n");
                return 0xffffffff;
        }
 
        if (num < newCfg.img_number)
                for (i = newCfg.img_number - 1; i >= num; i--) {
                        newCfg.img_length[i] = newCfg.img_length[i - 1];
                        newCfg.img_start_addr[i] = newCfg.img_start_addr[i - 1];
                }
 
        newCfg.img_length[num - 1] = size;
        newCfg.img_start_addr[num - 1] = addr;
 
        save_global_cfg(newCfg);
        return addr;
}
 
int del_image_cmd(int argc, char *argv[])
{
        unsigned num, i;
        flash_cfg_struct newCfg = gcfg;
 
        newCfg.img_number = gcfg.img_number;
        for (i = 0; i < MAX_IMAGES; i++)
                newCfg.img_length[i] = gcfg.img_length[i];
 
        printf("Number of images available: 0x%lx\n", newCfg.img_number);
 
        if (argc == 0) {
                newCfg.img_number = 0;
                for (i = 0; i < MAX_IMAGES; i++) {
                        newCfg.img_length[i] = 0;
                        newCfg.img_start_addr[i] = 0;
                }
                save_global_cfg(newCfg);
                return 0;
        } else {
                num = strtoul(argv[0], 0, 0);
        }
 
        if (newCfg.img_number == 0) {
                printf("Nothing to delete!\n");
                return 0;
        }
        if ((num == 0) || (num > newCfg.img_number))
                num = newCfg.img_number;
 
        for (i = num - 1; i < newCfg.img_number; i++) {
                newCfg.img_length[i] = newCfg.img_length[i + 1];
                newCfg.img_start_addr[i] = newCfg.img_start_addr[i + 1];
        }
 
        newCfg.img_number--;
        save_global_cfg(newCfg);
        return 0;
}
 
int boot_cmd(int argc, char *argv[])
{
        int num;
        extern int tx_next;
 
        if (argc == 0) {
                images_info();
                return 0;
        }
 
        num = strtoul(argv[0], 0, 0);
        if (gcfg.img_number < num) {
                printf("There are only %lu images, you requested %d!\n",
                       gcfg.img_number, num);
                return -1;
        }
 
        printf("Copying image number %d from 0x%lx, size: 0x%lx...",
               num, gcfg.img_start_addr[num - 1], gcfg.img_length[num - 1]);
 
        printf("booting...\n");
        copy_and_boot(gcfg.img_start_addr[num - 1], 0x0,
                      gcfg.img_length[num - 1], tx_next);
        return 0;
}
 
int mGetData(unsigned long);
 
#if 0                           // Disable sboot - JB
int sboot_cmd(int argc, char *argv[])
{
        int copied;
        unsigned int num = 0xffffffff, addr = 0x0;
 
        switch (argc) {
        case 0:
                num = 0xffffffff;
                break;
        case 1:
                num = strtoul(argv[0], 0, 0);
                break;
        }
 
        copied = mGetData(global.src_addr);
        if (copied <= 0) {
                printf("sboot: error while getting the image!");
                return -1;
        }
        printf("image size: 0x%x\n", copied);
 
        if (num != 0xffffffff) {
                addr = prepare_img_data(num, copied);
                if (addr == 0xffffffff)
                        printf("Image not written to flash!\n");
                else {
                        printf
                            ("Copying image to flash, image number: %d, dst_addr: 0x%x\n",
                             num, addr);
                        copy_memory_run(global.src_addr,
                                        gcfg.img_start_addr[num - 1], copied, 2,
                                        0xffffffff);
                }
        }
 
        return 0;
}
#endif
 
void relocate_code(void *destination, void *function, int length_words)
{
        // Just copy the function word at a time from one place to another
        int i;
        unsigned long *p1 = (unsigned long *)destination;
        unsigned long *p2 = (unsigned long *)function;
        for (i = 0; i < length_words; i++)
                p1[i] = p2[i];
}
 
// DC disable command in cpu.c
extern int dc_disable_cmd(int argc, char *argv[]);
 
int tboot_cmd(int argc, char *argv[])
{
        int copied;
        unsigned int num = 0xffffffff, addr = 0x0;
        extern int tx_next;
        // NetTxPacket wasn't getting cleared before we used it...
        NetTxPacket = 0;
        NetBootFileSize = 0;
 
        switch (argc) {
        case 0:
                num = 0xffffffff;
                break;
        case 1:
                printf("argv[0] %p\n", argv[0]);
                num = strtoul(argv[0], 0, 0);
                printf("num %d\n", num);
                break;
        }
 
        // Disable data cache if present
        if (mfspr(SPR_SR) & SPR_SR_DCE) {
                printf("Disabling data cache\n");
                dc_disable_cmd(0, 0);
        }
        // Kick off copy
        copied = NetLoop(TFTP);
        if (copied <= 0) {
                printf("tboot: error while getting the image '%s'",
                       tftp_filename);
                return -1;
        }
 
        if (global.src_addr > 0) {
                /* the point of no return */
                printf("tboot: copying 0x%lx -> 0x0, image size 0x%x...\n",
                       global.src_addr, copied);
        }
        // Disable timer: clear it all!
        mtspr(SPR_SR, mfspr(SPR_SR) & ~SPR_SR_TEE);
        mtspr(SPR_TTMR, 0);
 
        // Put the copyboot program at 24MB mark in memory
#define COPYBOOT_LOCATION (1024*1024*24)
        printf("tboot: relocating copy loop to 0x%x ...\n",
               (unsigned long)COPYBOOT_LOCATION);
        // Setup where we'll copy the relocation function to
        void (*relocated_function) (unsigned long, unsigned long, unsigned long,
                                    int)
            = (void *)COPYBOOT_LOCATION;
        // Now copy the function there, 32 words worth, increase this if needed...
        relocate_code((void *)COPYBOOT_LOCATION, copy_and_boot, 32);
        // Indicate we'll jump there...
        printf
            ("tboot: Relocate (%d bytes from 0x%x to 0) and boot image, ...\n",
             copied, (unsigned long)global.src_addr);
        // Now do the copy and boot
        (*relocated_function) (global.src_addr, 0x0, 0x0 + copied, tx_next);
 
        return 0;
}
 
int sdboot_cmd(int argc, char *argv[])
{
        VOLINFO vi;
        unsigned char *buf_ptr;
 
        unsigned char sector[SECTOR_SIZE], sector2[SECTOR_SIZE];
        FILEINFO fi;
        unsigned long int pstart, psize, i, fisz;
        unsigned char pactive, ptype;
        DIRINFO di;
        DIRENT de;
        unsigned long int cache;
 
        // Obtain pointer to first partition on first (only) unit
        // Disable data cache if present
        if (mfspr(SPR_SR) & SPR_SR_DCE) {
                printf("Disabling data cache\n");
                dc_disable_cmd(0, 0);
        }
 
        buf_ptr = global.src_addr;
 
        printf("SD-BOOT start \n");
        i = init_fat(&vi);
 
        printf("Volume label '%-11.11s'\n", vi.label);
        printf
            ("%d sector/s per cluster, %d reserved sector/s, volume total %d sectors.\n",
             vi.secperclus, vi.reservedsecs, vi.numsecs);
        printf
            ("%d sectors per FAT, first FAT at sector #%d, root dir at #%d.\n",
             vi.secperfat, vi.fat1, vi.rootdir);
        printf
            ("(For FAT32, the root dir is a CLUSTER number, FAT12/16 it is a SECTOR number)\n");
        printf("%d root dir entries, data area commences at sector #%d.\n",
               vi.rootentries, vi.dataarea);
        printf("%d clusters (%d bytes) in data area, filesystem IDd as ",
               vi.numclusters, vi.numclusters * vi.secperclus * SECTOR_SIZE);
        if (vi.filesystem == FAT12)
                printf("FAT12.\n");
        else if (vi.filesystem == FAT16)
                printf("FAT16.\n");
        else if (vi.filesystem == FAT32)
                printf("FAT32.\n");
        else
                printf("[unknown]\n");
 
        if (DFS_OpenDir(&vi, "", &di)) {
                printf("Error opening root directory\n");
                return -1;
        }
 
        printf("Readback test\n");
        if (DFS_OpenFile(&vi, "vmlinux.bin", DFS_READ, sector, &fi)) {
                printf("error opening file\n");
 
                return -1;
        }
 
        printf("fi.filen %d, pointer adress:%d, data:%d \n", fi.filelen,
               buf_ptr, *buf_ptr);
 
        DFS_ReadFile(&fi, sector, buf_ptr, &i, fi.filelen);
        printf("\n read complete %d bytes (expected %d) pointer %d\n", i,
               fi.filelen, fi.pointer);
 
        if (global.src_addr > 0) {
                /* the point of no return */
                printf("tboot: copying 0x%lx -> 0x0, image size 0x%x...\n",
                       global.src_addr, i);
        }
 
        // Disable timer: clear it all!
        mtspr(SPR_SR, mfspr(SPR_SR) & ~SPR_SR_TEE);
        mtspr(SPR_TTMR, 0);
 
        // Put the copyboot program at 24MB mark in memory
#define COPYBOOT_LOCATION (1024*1024*24)
        printf("tboot: relocating copy loop to 0x%x ...\n",
               (unsigned long)COPYBOOT_LOCATION);
        // Setup where we'll copy the relocation function to
        void (*relocated_function) (unsigned long, unsigned long, unsigned long,
                                    int)
            = (void *)COPYBOOT_LOCATION;
        // Now copy the function there, 32 words worth, increase this if needed...
        relocate_code((void *)COPYBOOT_LOCATION, copy_and_boot, 32);
        // Indicate we'll jump there...
        printf
            ("tboot: Relocate (%d bytes from 0x%x to 0) and boot image, ...\n",
             i, (unsigned long)global.src_addr);
        // Now do the copy and boot
        (*relocated_function) (global.src_addr, 0x0, 0x0 + i, 0);
 
        return 0;
 
}
 
void module_load_init(void)
{
 
        register_command("tftp_conf", "[ <file> [ <srv_ip> [ <src_addr>]]]",
                         "TFTP configuration", tftp_conf_cmd);
        register_command("tboot", "[<image number>]",
                         "Bootstrap image downloaded via tftp", tboot_cmd);
        register_command("sdboot", "[<image number>]",
                         "Read image from SD-CARD", sdboot_cmd);
#if 0
        register_command("tftp", "[<file> [<srv_ip> [<src_addr>]]]",
                         "TFTP download", tftp_cmd);
        register_command("copy", "[<dst_addr> [<src_addr [<length>]]]",
                         "Copy memory", copy_cmd);
        register_command("sboot", "[<image number>]",
                         "Bootstrap image downloaded via serial (Y/X modem)",
                         sboot_cmd);
        register_command("boot", "[<image number>]",
                         "Bootstrap image copied from flash.", boot_cmd);
        register_command("del_image", "[<image number>]", "Delete image",
                         del_image_cmd);
        register_command("save_conf", "",
                         "Save current configuration into flash",
                         save_conf_cmd);
        register_command("boot_flash", "[<start_addr>]",
                         "Boot image from <start_addr> (default from flash)",
                         boot_flash_cmd);
#endif
        init_load();
 
}

Line No.	Rev	Author	Line
1	406	julius	`#include "common.h"`
2	2	marcus.erl	`#include "support.h"`
3			`#include "flash.h"`
4			`#include "net.h"`
5			`#include "uart.h"`
6	389	tac2	`#include "dosfs.h"`
7	246	julius	`#include "spr-defs.h"`
8	2	marcus.erl
9			`#ifndef MAX_IMAGES`
10			`#define MAX_IMAGES 20`
11			`#endif`
12
13			`extern unsigned long fprog_addr;`
14			`extern char *tftp_filename;`
15
16	406	julius	`static flash_cfg_struct gcfg =`
17			`{ BOARD_DEF_IP, BOARD_DEF_MASK, BOARD_DEF_GW, BOARD_DEF_TBOOT_SRVR };`
18	2	marcus.erl
19	140	julius	`// Not booting from flash, so just set these from board.h -- jb`
20			`//static flash_cfg_struct __attribute__ ((section(".config"))) gcfg = { BOARD_DEF_IP, BOARD_DEF_MASK, BOARD_DEF_GW, BOARD_DEF_TBOOT_SRVR };`
21			`//static flash_cfg_struct __attribute__ ((section(".config"))) gcfg = { 0, 0, 0, 0 };`
22
23	2	marcus.erl	`#define FLASH_IMAGES_BASE 0xf0300000`
24
25			`#define ALIGN(addr,size) ((addr + (size-1))&(~(size-1)))`
26	140	julius	`// If the image buffer is word aligned, then uncomment this, but it was set up`
27			`// so that the tftp images would download quicker`
28			`#define COPY_AND_BOOT_WORD_ALIGNED`
29			`#ifdef COPY_AND_BOOT_WORD_ALIGNED`
30	406	julius	`void copy_and_boot(unsigned long src,`
31			`unsigned long dst, unsigned long len, int tx_next)`
32	2	marcus.erl	`{`
33	406	julius	`__asm__ __volatile__(" ;\`
34	2	marcus.erl	`l.addi r8,r0,0x1 ;\`
35			`l.mtspr r0,r8,0x11 ;\`
36			`l.nop ;\`
37			`l.nop ;\`
38			`l.nop ;\`
39			`l.nop ;\`
40			`l.nop ;\`
41			`2: ;\`
42			`l.sfgeu r4,r5 ;\`
43			`l.bf 1f ;\`
44			`l.nop ;\`
45			`l.lwz r8,0(r3) ;\`
46			`l.sw 0(r4),r8 ;\`
47			`l.addi r3,r3,4 ;\`
48			`l.j 2b ;\`
49			`l.addi r4,r4,4 ;\`
50			`1: l.sw 0x0(r0),r6 ;\`
51			`l.ori r8,r0,0x100 ;\`
52			`l.jr r8 ;\`
53			`l.nop");`
54			`}`
55	140	julius	`#else`
56	406	julius	`void copy_and_boot(unsigned long src,`
57			`unsigned long dst, unsigned long len, int tx_next)`
58	140	julius	`{`
59	406	julius	`__asm__ __volatile__(" ;\`
60	140	julius	`l.addi r8,r0,0x1 ;\`
61			`l.mtspr r0,r8,0x11 ;\`
62			`l.nop ;\`
63			`l.nop ;\`
64			`l.nop ;\`
65			`l.nop ;\`
66			`l.nop ;\`
67			`2: ;\`
68			`l.sfgeu r4,r5 ;\`
69			`l.bf 1f ;\`
70			`l.nop ;\`
71			`l.lbz r8,0(r3) ;\`
72			`l.sb 0(r4),r8 ;\`
73			`l.addi r3,r3,1 ;\`
74			`l.j 2b ;\`
75			`l.addi r4,r4,1 ;\`
76			`1: l.sw 0x0(r0),r6 ;\`
77			`l.ori r8,r0,0x100 ;\`
78			`l.jr r8 ;\`
79			`l.nop");`
80			`}`
81			`#endif`
82			`/* WARNING: stack and non-const globals should not be used in this function`
83			`-- it may corrupt what have we loaded;`
84	2	marcus.erl	`start_addr should be 0xffffffff if only copying should be made`
85			`no return, when start_addr != 0xffffffff, if successful */`
86	406	julius	`int copy_memory_run(register unsigned long src_addr,`
87			`register unsigned long dst_addr,`
88			`register unsigned long length,`
89			`register int erase, register unsigned long start_addr)`
90	2	marcus.erl	`{`
91	406	julius	`unsigned long i, flags;`
92	2	marcus.erl
93	406	julius	`register char dst = (char )dst_addr;`
94			`register const char src = (const char )src_addr;`
95	2	marcus.erl
96	406	julius	`if (dst_addr >= FLASH_BASE_ADDR) {`
97			`if (dst_addr + length >= FLASH_BASE_ADDR + FLASH_SIZE) {`
98			`printf("error: region does not fit into flash.\n");`
99			`return 1;`
100			`}`
101	2	marcus.erl	`#ifndef CFG_IN_FLASH`
102	406	julius	`fl_program(src_addr, dst_addr, length, erase,`
103			`1 /* do verify */ );`
104	2	marcus.erl	`#else`
105	406	julius	`/* we must disable interrupts! */`
106			`flags = mfspr(SPR_SR);`
107			`mtspr(SPR_SR, flags & ~(SPR_SR_TEE \| SPR_SR_IEE));`
108
109			`printf("Unlocking flash... ");`
110			`for (i = 0; i < length; i += FLASH_BLOCK_SIZE)`
111			`fl_ext_unlock(dst_addr + i);`
112			`printf("done\n");`
113
114			`printf("Erasing flash... ");`
115			`for (i = 0; i < length; i += FLASH_BLOCK_SIZE)`
116			`fl_ext_erase(dst_addr + i);`
117			`printf("done\n");`
118
119			`printf("Programing flash:\n\t");`
120			`for (i = 0; i < length; i += INC_ADDR) {`
121			`if (((i + INC_ADDR) % 1000) == 0)`
122			`printf("#");`
123			`if ((i % (65 * 1000)) == 0)`
124			`printf("\n\t");`
125			`if (fl_ext_program`
126			`(dst_addr + i, reg_read(src_addr + i))) {`
127			`printf("error programing at 0x%08lx!\n",`
128			`dst_addr + i);`
129			`return 1;`
130			`}`
131			`}`
132			`printf("Verifying flash... ");`
133			`for (i = 0; i < length; i += INC_ADDR) {`
134			`if (reg_read(dst_addr + i) != reg_read(src_addr + i)) {`
135			`printf("error at %08lx: %08lx != %08lx\n",`
136			`src_addr + i, reg_read(src_addr + i),`
137			`reg_read(dst_addr + i));`
138			`return 1;`
139			`}`
140			`}`
141			`printf("OK!\n");`
142			`mtspr(SPR_SR, flags);`
143	2	marcus.erl	`#endif`
144	406	julius	`if (start_addr == 0xffffffff)`
145			`return 0;`
146			`} else {`
147			`while (length--)`
148			`dst++ = src++;`
149			`if (start_addr == 0xffffffff)`
150			`return 0;`
151			`}`
152			`/* Run the program */`
153			`((void (*)(void))start_addr) ();`
154			`return 0; /* just to satisfy the cc */`
155	2	marcus.erl	`}`
156
157			`void bf_jump(unsigned long addr)`
158			`{`
159	406	julius	`asm("l.jr r3");`
160			`asm("l.nop 0x0");`
161	2	marcus.erl	`}`
162
163			`int boot_flash_cmd(int argc, char *argv[])`
164			`{`
165	406	julius	`unsigned long addr, val, jaddr;`
166			`addr = 17;`
167			`val = 0;`
168			`/* clear SR */`
169	2	marcus.erl
170	406	julius	`asm("l.mtspr %0,%1,0": :"r"(addr), "r"(val));`
171			`/* jump */`
172			`if (argc == 0)`
173			`bf_jump(FLASH_BASE_ADDR + 0x100);`
174			`else {`
175			`jaddr = strtoul(argv[0], 0, 0);`
176			`bf_jump(jaddr);`
177			`}`
178			`return 0;`
179	2	marcus.erl	`}`
180
181	406	julius	`void init_load(void)`
182	2	marcus.erl	`{`
183	406	julius	`#if 0 // JB - removing flash stuff`
184	140	julius	`# ifdef CFG_IN_FLASH`
185	406	julius	`copy_memory_run((unsigned long)&fl_word_program,`
186			`(unsigned long)&fprog_addr, 95, 0, 0xffffffff);`
187			`copy_memory_run((unsigned long)&fl_block_erase,`
188			`(unsigned long)&fprog_addr + 96, 119, 0, 0xffffffff);`
189			`copy_memory_run((unsigned long)&fl_unlock_one_block,`
190			`(unsigned long)&fprog_addr + 96 + 120, 115, 0,`
191			`0xffffffff);`
192	2	marcus.erl
193	406	julius	`fl_ext_program = (t_fl_ext_program) & fprog_addr;`
194			`fl_ext_erase = (t_fl_erase) & fprog_addr + 96;`
195			`fl_ext_unlock = (t_fl_erase) & fprog_addr + 96 + 120;`
196	2	marcus.erl
197	140	julius	`# if 0`
198	406	julius	`printf("fl_word_program(): 0x%x\tfl_ext_program(): 0x%x\n",`
199			`&fl_word_program, fl_ext_program);`
200			`printf("fl_block_erase: 0x%x\tfl_ext_erase(): 0x%x\n",`
201			`&fl_block_erase, fl_ext_erase);`
202			`printf("fl_unlock_one_block(): 0x%x\tfl_ext_unlock(): 0x%x\n",`
203			`&fl_unlock_one_block, fl_ext_unlock);`
204	140	julius	`# endif`
205	2	marcus.erl
206	406	julius	`# else /* not CFG_IN_FLASH */`
207			`fl_ext_program = (t_fl_ext_program) & fl_word_program;`
208			`fl_ext_erase = (t_fl_erase) & fl_block_erase;`
209			`fl_ext_unlock = (t_fl_erase) & fl_unlock_one_block;`
210	140	julius	`# endif /* CFG_IN_FLASH */`
211			`#endif`
212	2	marcus.erl
213	406	julius	`/*`
214			`global.ip = gcfg.eth_ip;`
215			`global.gw_ip = gcfg.eth_gw;`
216			`global.mask = gcfg.eth_mask;`
217			`global.srv_ip = gcfg.tftp_srv_ip;`
218			`global.src_addr = 0x100000;`
219			`tftp_filename = "boot.img";`
220			`*/`
221	140	julius
222	406	julius	`global.ip = BOARD_DEF_IP;`
223			`global.gw_ip = BOARD_DEF_GW;`
224			`global.mask = BOARD_DEF_MASK;`
225			`global.srv_ip = BOARD_DEF_TBOOT_SRVR;`
226			`global.src_addr = BOARD_DEF_LOAD_SPACE;`
227			`tftp_filename = BOARD_DEF_IMAGE_NAME;`
228	140	julius
229	406	julius	`/*memcpy(tftp_filename, gcfg.tftp_filename, strlen(gcfg.tftp_filename));`
230			`tftp_filename[strlen(gcfg.tftp_filename)] = '\0'; */`
231	2	marcus.erl	`}`
232
233	406	julius	`int tftp_cmd(int argc, char *argv[])`
234	2	marcus.erl	`{`
235	406	julius	`switch (argc) {`
236			`case 0:`
237			`tftp_filename = "boot.img";`
238			`break;`
239			`case 3:`
240			`global.src_addr = strtoul(argv[2], 0, 0);`
241			`case 2:`
242			`global.srv_ip = parse_ip(argv[1]);`
243			`case 1:`
244			`tftp_filename = &argv[0][0];`
245			`break;`
246			`}`
247
248			`NetLoop(TFTP); // TFTP is enumerated value in net.h`
249
250			`return 0;`
251	2	marcus.erl	`}`
252
253			`int tftp_conf_cmd(int argc, char *argv[])`
254			`{`
255	406	julius	`switch (argc) {`
256			`case 0:`
257			`printf("Image filename: %s", tftp_filename);`
258			`printf("\nSrc addr: 0x%lx", global.src_addr);`
259			`printf("\nServer IP: %s", inet_ntoa(global.srv_ip));`
260			`return 0;`
261			`case 3:`
262			`global.src_addr = strtoul(argv[2], 0, 0);`
263			`global.srv_ip = inet_aton(argv[1]);`
264			`tftp_filename = argv[0];`
265			`tftp_filename[strlen(argv[0])] = '\0';`
266			`break;`
267			`case 2:`
268			`global.srv_ip = inet_aton(argv[1]);`
269			`tftp_filename = argv[0];`
270			`break;`
271			`case 1:`
272			`tftp_filename = argv[0];`
273			`break;`
274			`}`
275			`return 0;`
276	2	marcus.erl	`}`
277
278			`void save_global_cfg(flash_cfg_struct cfg)`
279			`{`
280	406	julius	`unsigned long dst = (unsigned long)&gcfg, src = (unsigned long)&cfg;`
281			`unsigned long i, end, flags;`
282	2	marcus.erl
283	406	julius	`end = (unsigned long)&cfg + sizeof(flash_cfg_struct);`
284	2	marcus.erl
285	406	julius	`printf("Saving global cfg from 0x%lx (end: 0x%lx) to 0x%lx...", src,`
286			`end, dst);`
287	2	marcus.erl
288	406	julius	`/* we must disable interrupts! */`
289			`flags = mfspr(SPR_SR);`
290			`mtspr(SPR_SR, flags & ~(SPR_SR_TEE \| SPR_SR_IEE));`
291			`/* printf("Unlocking... "); */`
292			`for (i = 0; (src + i <= end); i += FLASH_BLOCK_SIZE) {`
293			`fl_ext_unlock(dst + i);`
294			`}`
295			`/* printf("done\n"); */`
296			`/* printf("Erasing... "); */`
297			`for (i = 0; (src + i <= end); i += FLASH_BLOCK_SIZE)`
298			`fl_ext_erase(dst);`
299			`/* printf("done\n"); */`
300			`/* printf("Programing... "); */`
301			`for (i = 0; (src + i <= end); i += INC_ADDR) {`
302			`if (fl_ext_program(dst + i, reg_read(src + i))) {`
303			`printf("Error ocurred while saving.\n");`
304			`return;`
305			`}`
306			`}`
307			`printf("done\n");`
308	2	marcus.erl
309	406	julius	`/* and than enable it back */`
310			`mtspr(SPR_SR, flags);`
311			`return;`
312	2	marcus.erl	`}`
313
314			`int save_conf_cmd(int argc, char *argv[])`
315			`{`
316	406	julius	`flash_cfg_struct newCfg;`
317	2	marcus.erl
318	406	julius	`newCfg = gcfg;`
319	2	marcus.erl
320	406	julius	`newCfg.eth_ip = global.ip;`
321			`newCfg.eth_mask = global.mask;`
322			`newCfg.eth_gw = global.gw_ip;`
323			`newCfg.tftp_srv_ip = global.srv_ip;`
324			`/* memcpy(newCfg.tftp_filename, tftp_filename, strlen(tftp_filename)); */`
325	2	marcus.erl
326	406	julius	`save_global_cfg(newCfg);`
327			`return 0;`
328	2	marcus.erl	`}`
329	406	julius
330			`int copy_cmd(int argc, char *argv[])`
331	2	marcus.erl	`{`
332	406	julius	`switch (argc) {`
333			`case 3:`
334			`global.src_addr = strtoul(argv[2], 0, 0);`
335			`case 2:`
336			`global.length = strtoul(argv[2], 0, 0);`
337			`case 1:`
338			`global.src_addr = strtoul(argv[2], 0, 0);`
339			`case 0:`
340			`return copy_memory_run(global.src_addr, global.dst_addr,`
341			`global.length, global.erase_method,`
342			`0xffffffff);`
343			`}`
344			`return -1;`
345	2	marcus.erl	`}`
346
347	406	julius	`void images_info(void)`
348	2	marcus.erl	`{`
349	406	julius	`int i;`
350			`printf("Number of images: 0x%lx\n", gcfg.img_number);`
351			`for (i = 0; i < gcfg.img_number; i++)`
352			`printf("%d. image size: 0x%lx (at 0x%08lx)\n", i + 1,`
353			`gcfg.img_length[i], gcfg.img_start_addr[i]);`
354	2	marcus.erl	`}`
355
356			`/*`
357			`* get_good_addr()`
358			`*`
359			`* Here we try to find the most suitable place for our image. We search for`
360			`* a hole between images, that is big enough (but as small as possible).`
361			`*`
362			`*/`
363	406	julius	`unsigned long get_good_addr(unsigned int size)`
364	2	marcus.erl	`{`
365	406	julius	`unsigned long start_addr[MAX_IMAGES], end_addr[MAX_IMAGES];`
366			`unsigned long free[MAX_IMAGES], st_addr[MAX_IMAGES];`
367			`unsigned long tmpval;`
368			`unsigned int i = 0, j;`
369	2	marcus.erl
370	406	julius	`flash_cfg_struct myCfg;`
371			`myCfg = gcfg;`
372	2	marcus.erl
373	406	julius	`/* we are full */`
374			`if (gcfg.img_number == MAX_IMAGES)`
375			`return 0xffffffff;`
376	2	marcus.erl
377	406	julius	`if (gcfg.img_number == 0)`
378			`return FLASH_IMAGES_BASE;`
379	2	marcus.erl
380	406	julius	`for (i = 0; i < MAX_IMAGES; i++) {`
381			`start_addr[i] = 0;`
382			`end_addr[i] = 0;`
383			`free[i] = 0;`
384			`st_addr[i] = 0;`
385			`}`
386	2	marcus.erl
387	406	julius	`for (i = 0; i < myCfg.img_number; i++) {`
388			`start_addr[i] = myCfg.img_start_addr[i];`
389			`end_addr[i] =`
390			`ALIGN((myCfg.img_start_addr[i] + myCfg.img_length[i]),`
391			`FLASH_BLOCK_SIZE);`
392			`}`
393			`/* printf("\n");`
394			`for(i = 0; i < myCfg.img_number; i++)`
395			`printf("start: 0x%08x, end: 0x%08x\n", start_addr[i], end_addr[i]);`
396			`printf("\n"); */`
397			`/* bubble sorting by start_addr */`
398	2	marcus.erl
399	406	julius	`for (j = myCfg.img_number - 1; j > 0; j--)`
400			`for (i = 0; i < j; i++)`
401			`if (start_addr[i] > start_addr[i + 1]) {`
402			`tmpval = start_addr[i];`
403			`start_addr[i] = start_addr[i + 1];`
404			`start_addr[i + 1] = tmpval;`
405			`tmpval = end_addr[i];`
406			`end_addr[i] = end_addr[i + 1];`
407			`end_addr[i + 1] = tmpval;`
408			`}`
409	2	marcus.erl
410	406	julius	`/* for(i = 0; i < myCfg.img_number; i++)`
411			`printf("start: 0x%08x, end: 0x%08x\n", start_addr[i], end_addr[i]);`
412			`printf("\n"); */`
413	2	marcus.erl
414	406	julius	`/* now we calculate free space betwens segments */`
415			`for (i = 1; i < myCfg.img_number; i++) {`
416			`st_addr[i] = end_addr[i - 1];`
417			`free[i] = start_addr[i] - end_addr[i - 1];`
418			`}`
419	2	marcus.erl
420	406	julius	`/* here we calcuta first position (starting with FLASH_IMAGES_BASE)... */`
421			`st_addr[0] = FLASH_IMAGES_BASE + 0;`
422			`free[0] = start_addr[0] - FLASH_IMAGES_BASE;`
423			`/* ... and last one (ending with FLASH_IMAGES_BASE + FLASH_SIZE). */`
424			`st_addr[myCfg.img_number] = end_addr[myCfg.img_number - 1];`
425			`free[myCfg.img_number] = (FLASH_IMAGES_BASE + FLASH_SIZE) -`
426			`end_addr[myCfg.img_number - 1];`
427	2	marcus.erl
428	406	julius	`/* yet another bubble sort by free (space) */`
429			`for (j = myCfg.img_number; j > 0; j--)`
430			`for (i = 0; i < j; i++)`
431			`if (free[i] > free[i + 1]) {`
432			`tmpval = free[i];`
433			`free[i] = free[i + 1];`
434			`free[i + 1] = tmpval;`
435			`tmpval = st_addr[i];`
436			`st_addr[i] = st_addr[i + 1];`
437			`st_addr[i + 1] = tmpval;`
438			`}`
439	2	marcus.erl
440	406	julius	`/* now we pick the smallest but just big enough for our size */`
441			`for (i = 0; i <= myCfg.img_number; i++)`
442			`if (free[i] >= size)`
443			`return st_addr[i];`
444	2	marcus.erl
445	406	julius	`/* there is not enough space (in one segment) left */`
446			`return 0;`
447	2	marcus.erl	`}`
448
449	406	julius	`unsigned long prepare_img_data(unsigned int num, unsigned int size)`
450	2	marcus.erl	`{`
451	406	julius	`int i;`
452			`unsigned long addr = 0;`
453			`flash_cfg_struct newCfg;`
454	2	marcus.erl
455	406	julius	`newCfg = gcfg;`
456	2	marcus.erl
457	406	julius	`if (newCfg.img_number >= MAX_IMAGES) {`
458			`printf("Maximum images exceeded: %d\n", MAX_IMAGES);`
459			`return 0xffffffff;`
460			`}`
461	2	marcus.erl
462	406	julius	`newCfg.img_number++;`
463	2	marcus.erl
464	406	julius	`if ((num > newCfg.img_number) \|\| (num == 0))`
465			`num = newCfg.img_number;`
466	2	marcus.erl
467	406	julius	`addr = get_good_addr(size);`
468			`if (addr == 0x00) {`
469			`printf`
470			`("Can not find suitable place in flash. (None of free segments are big enough)\n");`
471			`return 0xffffffff;`
472			`}`
473	2	marcus.erl
474	406	julius	`if (num < newCfg.img_number)`
475			`for (i = newCfg.img_number - 1; i >= num; i--) {`
476			`newCfg.img_length[i] = newCfg.img_length[i - 1];`
477			`newCfg.img_start_addr[i] = newCfg.img_start_addr[i - 1];`
478			`}`
479	2	marcus.erl
480	406	julius	`newCfg.img_length[num - 1] = size;`
481			`newCfg.img_start_addr[num - 1] = addr;`
482	2	marcus.erl
483	406	julius	`save_global_cfg(newCfg);`
484			`return addr;`
485	2	marcus.erl	`}`
486
487	406	julius	`int del_image_cmd(int argc, char *argv[])`
488	2	marcus.erl	`{`
489	406	julius	`unsigned num, i;`
490			`flash_cfg_struct newCfg = gcfg;`
491	2	marcus.erl
492	406	julius	`newCfg.img_number = gcfg.img_number;`
493			`for (i = 0; i < MAX_IMAGES; i++)`
494			`newCfg.img_length[i] = gcfg.img_length[i];`
495	2	marcus.erl
496	406	julius	`printf("Number of images available: 0x%lx\n", newCfg.img_number);`
497	2	marcus.erl
498	406	julius	`if (argc == 0) {`
499			`newCfg.img_number = 0;`
500			`for (i = 0; i < MAX_IMAGES; i++) {`

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