diff options
| -rw-r--r-- | board/w7o/fpga.c | 543 |
1 files changed, 275 insertions, 268 deletions
diff --git a/board/w7o/fpga.c b/board/w7o/fpga.c index 100bce472..c3d3c801d 100644 --- a/board/w7o/fpga.c +++ b/board/w7o/fpga.c @@ -31,349 +31,356 @@ static void fpga_img_write(unsigned long *src, unsigned long len, unsigned short *daddr) { - unsigned long i; - volatile unsigned long val; - volatile unsigned short *dest = daddr; /* volatile-bypass optimizer */ + unsigned long i; + volatile unsigned long val; + volatile unsigned short *dest = daddr; /* volatile-bypass optimizer */ - for (i = 0; i < len; i++, src++) { - val = *src; - *dest = (unsigned short)((val & 0xff000000L) >> 16); - *dest = (unsigned short)((val & 0x00ff0000L) >> 8); - *dest = (unsigned short)(val & 0x0000ff00L); - *dest = (unsigned short)((val & 0x000000ffL) << 8); - } + for (i = 0; i < len; i++, src++) { + val = *src; + *dest = (unsigned short) ((val & 0xff000000L) >> 16); + *dest = (unsigned short) ((val & 0x00ff0000L) >> 8); + *dest = (unsigned short) (val & 0x0000ff00L); + *dest = (unsigned short) ((val & 0x000000ffL) << 8); + } - /* Terminate programming with 4 C clocks */ - dest = daddr; - val = *(unsigned short *)dest; - val = *(unsigned short *)dest; - val = *(unsigned short *)dest; - val = *(unsigned short *)dest; + /* Terminate programming with 4 C clocks */ + dest = daddr; + val = *(unsigned short *) dest; + val = *(unsigned short *) dest; + val = *(unsigned short *) dest; + val = *(unsigned short *) dest; } int -fpgaDownload(unsigned char *saddr, - unsigned long size, - unsigned short *daddr) +fpgaDownload(unsigned char *saddr, unsigned long size, unsigned short *daddr) { - int i; /* index, intr disable flag */ - int start; /* timer */ - unsigned long greg, grego; /* GPIO & output register */ - unsigned long length; /* image size in words */ - unsigned long *source; /* image source addr */ - unsigned short *dest; /* destination FPGA addr */ - volatile unsigned short *ndest; /* temp dest FPGA addr */ - volatile unsigned short val; /* temp val */ - unsigned long cnfg = GPIO_XCV_CNFG; /* FPGA CNFG */ - unsigned long eirq = GPIO_XCV_IRQ; - int retval = -1; /* Function return value */ + int i; /* index, intr disable flag */ + int start; /* timer */ + unsigned long greg, grego; /* GPIO & output register */ + unsigned long length; /* image size in words */ + unsigned long *source; /* image source addr */ + unsigned short *dest; /* destination FPGA addr */ + volatile unsigned short *ndest; /* temp dest FPGA addr */ + volatile unsigned short val; /* temp val */ + unsigned long cnfg = GPIO_XCV_CNFG; /* FPGA CNFG */ + unsigned long eirq = GPIO_XCV_IRQ; + int retval = -1; /* Function return value */ - /* Setup some basic values */ - length = (size / 4) + 1; /* size in words, rounding UP - is OK */ - source = (unsigned long *)saddr; - dest = (unsigned short *)daddr; + /* Setup some basic values */ + length = (size / 4) + 1; /* size in words, rounding UP + is OK */ + source = (unsigned long *) saddr; + dest = (unsigned short *) daddr; - /* Get DCR output register */ - grego = in32(PPC405GP_GPIO0_OR); + /* Get DCR output register */ + grego = in32(PPC405GP_GPIO0_OR); - /* Reset FPGA */ - grego &= ~GPIO_XCV_PROG; /* PROG line low */ - out32(PPC405GP_GPIO0_OR, grego); + /* Reset FPGA */ + grego &= ~GPIO_XCV_PROG; /* PROG line low */ + out32(PPC405GP_GPIO0_OR, grego); - /* Setup timeout timer */ - start = get_timer(0); + /* Setup timeout timer */ + start = get_timer(0); - /* Wait for FPGA init line */ - while(in32(PPC405GP_GPIO0_IR) & GPIO_XCV_INIT) { /* Wait INIT line low */ - /* Check for timeout - 100us max, so use 3ms */ - if (get_timer(start) > 3) { - printf(" failed to start init.\n"); - log_warn(ERR_XINIT0); /* Don't halt */ + /* Wait for FPGA init line to go low */ + while (in32(PPC405GP_GPIO0_IR) & GPIO_XCV_INIT) { + /* Check for timeout - 100us max, so use 3ms */ + if (get_timer(start) > 3) { + printf(" failed to start init.\n"); + log_warn(ERR_XINIT0); /* Don't halt */ - /* Reset line stays low */ - goto done; /* I like gotos... */ + /* Reset line stays low */ + goto done; /* I like gotos... */ + } } - } - /* Unreset FPGA */ - grego |= GPIO_XCV_PROG; /* PROG line high */ - out32(PPC405GP_GPIO0_OR, grego); + /* Unreset FPGA */ + grego |= GPIO_XCV_PROG; /* PROG line high */ + out32(PPC405GP_GPIO0_OR, grego); - /* Wait for FPGA end of init period . */ - while(!(in32(PPC405GP_GPIO0_IR) & GPIO_XCV_INIT)) { /* Wait for INIT hi */ + /* Wait for FPGA end of init period = init line go hi */ + while (!(in32(PPC405GP_GPIO0_IR) & GPIO_XCV_INIT)) { - /* Check for timeout */ - if (get_timer(start) > 3) { - printf(" failed to exit init.\n"); - log_warn(ERR_XINIT1); + /* Check for timeout */ + if (get_timer(start) > 3) { + printf(" failed to exit init.\n"); + log_warn(ERR_XINIT1); - /* Reset FPGA */ - grego &= ~GPIO_XCV_PROG; /* PROG line low */ - out32(PPC405GP_GPIO0_OR, grego); + /* Reset FPGA */ + grego &= ~GPIO_XCV_PROG; /* PROG line low */ + out32(PPC405GP_GPIO0_OR, grego); - goto done; + goto done; + } } - } - /* Now program FPGA ... */ - ndest = dest; - for (i = 0; i < CONFIG_NUM_FPGAS; i++) { - /* Toggle IRQ/GPIO */ - greg = mfdcr(CPC0_CR0); /* get chip ctrl register */ - greg |= eirq; /* toggle irq/gpio */ - mtdcr(CPC0_CR0, greg); /* ... just do it */ + /* Now program FPGA ... */ + ndest = dest; + for (i = 0; i < CONFIG_NUM_FPGAS; i++) { + /* Toggle IRQ/GPIO */ + greg = mfdcr(CPC0_CR0); /* get chip ctrl register */ + greg |= eirq; /* toggle irq/gpio */ + mtdcr(CPC0_CR0, greg); /* ... just do it */ - /* turn on open drain for CNFG */ - greg = in32(PPC405GP_GPIO0_ODR); /* get open drain register */ - greg |= cnfg; /* CNFG open drain */ - out32(PPC405GP_GPIO0_ODR, greg); /* .. just do it */ + /* turn on open drain for CNFG */ + greg = in32(PPC405GP_GPIO0_ODR); /* get open drain register */ + greg |= cnfg; /* CNFG open drain */ + out32(PPC405GP_GPIO0_ODR, greg); /* .. just do it */ - /* Turn output enable on for CNFG */ - greg = in32(PPC405GP_GPIO0_TCR); /* get tristate register */ - greg |= cnfg; /* CNFG tristate inactive */ - out32(PPC405GP_GPIO0_TCR, greg); /* ... just do it */ + /* Turn output enable on for CNFG */ + greg = in32(PPC405GP_GPIO0_TCR); /* get tristate register */ + greg |= cnfg; /* CNFG tristate inactive */ + out32(PPC405GP_GPIO0_TCR, greg); /* ... just do it */ - /* Setup FPGA for programming */ - grego &= ~cnfg; /* CONFIG line low */ - out32(PPC405GP_GPIO0_OR, grego); + /* Setup FPGA for programming */ + grego &= ~cnfg; /* CONFIG line low */ + out32(PPC405GP_GPIO0_OR, grego); - /* - * Program the FPGA - */ - printf("\n destination: 0x%lx ", (unsigned long)ndest); + /* + * Program the FPGA + */ + printf("\n destination: 0x%lx ", (unsigned long) ndest); - fpga_img_write(source, length, (unsigned short *)ndest); + fpga_img_write(source, length, (unsigned short *) ndest); - /* Done programming */ - grego |= cnfg; /* CONFIG line high */ - out32(PPC405GP_GPIO0_OR, grego); + /* Done programming */ + grego |= cnfg; /* CONFIG line high */ + out32(PPC405GP_GPIO0_OR, grego); - /* Turn output enable OFF for CNFG */ - greg = in32(PPC405GP_GPIO0_TCR); /* get tristate register */ - greg &= ~cnfg; /* CNFG tristate inactive */ - out32(PPC405GP_GPIO0_TCR, greg); /* ... just do it */ + /* Turn output enable OFF for CNFG */ + greg = in32(PPC405GP_GPIO0_TCR); /* get tristate register */ + greg &= ~cnfg; /* CNFG tristate inactive */ + out32(PPC405GP_GPIO0_TCR, greg); /* ... just do it */ - /* Toggle IRQ/GPIO */ - greg = mfdcr(CPC0_CR0); /* get chip ctrl register */ - greg &= ~eirq; /* toggle irq/gpio */ - mtdcr(CPC0_CR0, greg); /* ... just do it */ + /* Toggle IRQ/GPIO */ + greg = mfdcr(CPC0_CR0); /* get chip ctrl register */ + greg &= ~eirq; /* toggle irq/gpio */ + mtdcr(CPC0_CR0, greg); /* ... just do it */ - ndest = (unsigned short *)((char *)ndest + 0x00100000L); /* XXX - Next FPGA addr */ - cnfg >>= 1; /* XXX - Next */ - eirq >>= 1; - } + /* XXX - Next FPGA addr */ + ndest = (unsigned short *) ((char *) ndest + 0x00100000L); + cnfg >>= 1; /* XXX - Next */ + eirq >>= 1; + } - /* Terminate programming with 4 C clocks */ - ndest = dest; - for (i = 0; i < CONFIG_NUM_FPGAS; i++) { - val = *ndest; - val = *ndest; - val = *ndest; - val = *ndest; - ndest = (unsigned short *)((char *)ndest + 0x00100000L); - } + /* Terminate programming with 4 C clocks */ + ndest = dest; + for (i = 0; i < CONFIG_NUM_FPGAS; i++) { + val = *ndest; + val = *ndest; + val = *ndest; + val = *ndest; + ndest = (unsigned short *) ((char *) ndest + 0x00100000L); + } - /* Setup timer */ - start = get_timer(0); + /* Setup timer */ + start = get_timer(0); - /* Wait for FPGA end of programming period . */ - while(!(in32(PPC405GP_GPIO0_IR) & GPIO_XCV_DONE)) { /* Test DONE low */ + /* Wait for FPGA end of programming period = Test DONE low */ + while (!(in32(PPC405GP_GPIO0_IR) & GPIO_XCV_DONE)) { - /* Check for timeout */ - if (get_timer(start) > 3) { - printf(" done failed to come high.\n"); - log_warn(ERR_XDONE1); + /* Check for timeout */ + if (get_timer(start) > 3) { + printf(" done failed to come high.\n"); + log_warn(ERR_XDONE1); - /* Reset FPGA */ - grego &= ~GPIO_XCV_PROG; /* PROG line low */ - out32(PPC405GP_GPIO0_OR, grego); + /* Reset FPGA */ + grego &= ~GPIO_XCV_PROG; /* PROG line low */ + out32(PPC405GP_GPIO0_OR, grego); - goto done; + goto done; + } } - } - printf("\n FPGA load succeeded\n"); - retval = 0; /* Program OK */ + printf("\n FPGA load succeeded\n"); + retval = 0; /* Program OK */ done: - return retval; + return retval; } /* FPGA image is stored in flash */ -extern flash_info_t flash_info[]; +extern flash_info_t flash_info[]; int init_fpga(void) { - unsigned int i,j,ptr; /* General purpose */ - unsigned char bufchar; /* General purpose character */ - unsigned char *buf; /* Start of image pointer */ - unsigned long len; /* Length of image */ - unsigned char *fn_buf; /* Start of filename string */ - unsigned int fn_len; /* Length of filename string */ - unsigned char *xcv_buf; /* Pointer to start of image */ - unsigned long xcv_len; /* Length of image */ - unsigned long crc; /* 30bit crc in image */ - unsigned long calc_crc; /* Calc'd 30bit crc */ - int retval = -1; + unsigned int i, j, ptr; /* General purpose */ + unsigned char bufchar; /* General purpose character */ + unsigned char *buf; /* Start of image pointer */ + unsigned long len; /* Length of image */ + unsigned char *fn_buf; /* Start of filename string */ + unsigned int fn_len; /* Length of filename string */ + unsigned char *xcv_buf; /* Pointer to start of image */ + unsigned long xcv_len; /* Length of image */ + unsigned long crc; /* 30bit crc in image */ + unsigned long calc_crc; /* Calc'd 30bit crc */ + int retval = -1; - /* Tell the world what we are doing */ - printf("FPGA: "); + /* Tell the world what we are doing */ + printf("FPGA: "); - /* - * Get address of first sector where the FPGA - * image is stored. - */ - buf = (unsigned char *)flash_info[1].start[0]; + /* + * Get address of first sector where the FPGA + * image is stored. + */ + buf = (unsigned char *) flash_info[1].start[0]; - /* - * Get the stored image's CRC & length. - */ - crc = *(unsigned long *)(buf+4); /* CRC is first long word */ - len = *(unsigned long *)(buf+8); /* Image len is next long */ + /* + * Get the stored image's CRC & length. + */ + crc = *(unsigned long *) (buf + 4); /* CRC is first long word */ + len = *(unsigned long *) (buf + 8); /* Image len is next long */ - /* Pedantic */ - if ((len < 0x133A4) || (len > 0x80000)) - goto bad_image; + /* Pedantic */ + if ((len < 0x133A4) || (len > 0x80000)) + goto bad_image; - /* - * Get the file name pointer and length. - */ - fn_len = (*(unsigned short *)(buf+12) & 0xff); /* filename length - is next short */ - fn_buf = buf + 14; + /* + * Get the file name pointer and length. + * filename length is next short + */ + fn_len = (*(unsigned short *) (buf + 12) & 0xff); + fn_buf = buf + 14; - /* - * Get the FPGA image pointer and length length. - */ - xcv_buf = fn_buf + fn_len; /* pointer to fpga image */ - xcv_len = len - 14 - fn_len; /* fpga image length */ + /* + * Get the FPGA image pointer and length length. + */ + xcv_buf = fn_buf + fn_len; /* pointer to fpga image */ + xcv_len = len - 14 - fn_len; /* fpga image length */ - /* Check for uninitialized FLASH */ - if ((strncmp((char *)buf, "w7o", 3)!=0) || (len > 0x0007ffffL) || (len == 0)) - goto bad_image; + /* Check for uninitialized FLASH */ + if ((strncmp((char *) buf, "w7o", 3) != 0) || (len > 0x0007ffffL) + || (len == 0)) + goto bad_image; - /* - * Calculate and Check the image's CRC. - */ - calc_crc = crc32(0, xcv_buf, xcv_len); - if (crc != calc_crc) { - printf("\nfailed - bad CRC\n"); - goto done; - } + /* + * Calculate and Check the image's CRC. + */ + calc_crc = crc32(0, xcv_buf, xcv_len); + if (crc != calc_crc) { + printf("\nfailed - bad CRC\n"); + goto done; + } - /* Output the file name */ - printf("file name : "); - for (i=0;i<fn_len;i++) { - bufchar = fn_buf[+i]; - if (bufchar<' ' || bufchar>'~') bufchar = '.'; - putc(bufchar); - } + /* Output the file name */ + printf("file name : "); + for (i = 0; i < fn_len; i++) { + bufchar = fn_buf[+i]; + if (bufchar < ' ' || bufchar > '~') + bufchar = '.'; + putc(bufchar); + } - /* - * find rest of display data - */ - ptr = 15; /* Offset to ncd filename - length in fpga image */ - j = xcv_buf[ptr]; /* Get len of ncd filename */ - if (j > 32) goto bad_image; - ptr = ptr + j + 3; /* skip ncd filename string + - 3 bytes more bytes */ + /* + * find rest of display data + */ + ptr = 15; /* Offset to ncd filename + length in fpga image */ + j = xcv_buf[ptr]; /* Get len of ncd filename */ + if (j > 32) + goto bad_image; + ptr = ptr + j + 3; /* skip ncd filename string + + 3 bytes more bytes */ - /* - * output target device string - */ - j = xcv_buf[ptr++] - 1; /* len of targ str less term */ - if (j > 32) goto bad_image; - printf("\n target : "); - for (i = 0; i < j; i++) { - bufchar = (xcv_buf[ptr++]); - if (bufchar<' ' || bufchar>'~') bufchar = '.'; - putc(bufchar); - } + /* + * output target device string + */ + j = xcv_buf[ptr++] - 1; /* len of targ str less term */ + if (j > 32) + goto bad_image; + printf("\n target : "); + for (i = 0; i < j; i++) { + bufchar = (xcv_buf[ptr++]); + if (bufchar < ' ' || bufchar > '~') + bufchar = '.'; + putc(bufchar); + } - /* - * output compilation date string and time string - */ - ptr += 3; /* skip 2 bytes */ - printf("\n synth time : "); - j = (xcv_buf[ptr++] - 1); /* len of date str less term */ - if (j > 32) goto bad_image; - for (i = 0; i < j; i++) { - bufchar = (xcv_buf[ptr++]); - if (bufchar<' ' || bufchar>'~') bufchar = '.'; - putc(bufchar); - } + /* + * output compilation date string and time string + */ + ptr += 3; /* skip 2 bytes */ + printf("\n synth time : "); + j = (xcv_buf[ptr++] - 1); /* len of date str less term */ + if (j > 32) + goto bad_image; + for (i = 0; i < j; i++) { + bufchar = (xcv_buf[ptr++]); + if (bufchar < ' ' || bufchar > '~') + bufchar = '.'; + putc(bufchar); + } - ptr += 3; /* Skip 2 bytes */ - printf(" - "); - j = (xcv_buf[ptr++] - 1); /* slen = targ dev str len */ - if (j > 32) goto bad_image; - for (i = 0; i < j; i++) { - bufchar = (xcv_buf[ptr++]); - if (bufchar<' ' || bufchar>'~') bufchar = '.'; - putc(bufchar); - } + ptr += 3; /* Skip 2 bytes */ + printf(" - "); + j = (xcv_buf[ptr++] - 1); /* slen = targ dev str len */ + if (j > 32) + goto bad_image; + for (i = 0; i < j; i++) { + bufchar = (xcv_buf[ptr++]); + if (bufchar < ' ' || bufchar > '~') + bufchar = '.'; + putc(bufchar); + } - /* - * output crc and length strings - */ - printf("\n len & crc : 0x%lx 0x%lx", len, crc); + /* + * output crc and length strings + */ + printf("\n len & crc : 0x%lx 0x%lx", len, crc); - /* - * Program the FPGA. - */ - retval = fpgaDownload((unsigned char*)xcv_buf, xcv_len, - (unsigned short *)0xfd000000L); - return retval; + /* + * Program the FPGA. + */ + retval = fpgaDownload((unsigned char *) xcv_buf, xcv_len, + (unsigned short *) 0xfd000000L); + return retval; bad_image: - printf("\n BAD FPGA image format @ %lx\n", flash_info[1].start[0]); - log_warn(ERR_XIMAGE); + printf("\n BAD FPGA image format @ %lx\n", + flash_info[1].start[0]); + log_warn(ERR_XIMAGE); done: - return retval; + return retval; } void test_fpga(unsigned short *daddr) { - int i; - volatile unsigned short *ndest = daddr; + int i; + volatile unsigned short *ndest = daddr; - for (i = 0; i < CONFIG_NUM_FPGAS; i++) { + for (i = 0; i < CONFIG_NUM_FPGAS; i++) { #if defined(CONFIG_W7OLMG) - ndest[0x7e] = 0x55aa; - if (ndest[0x7e] != 0x55aa) - log_warn(ERR_XRW1 + i); - ndest[0x7e] = 0xaa55; - if (ndest[0x7e] != 0xaa55) - log_warn(ERR_XRW1 + i); - ndest[0x7e] = 0xc318; - if (ndest[0x7e] != 0xc318) - log_warn(ERR_XRW1 + i); + ndest[0x7e] = 0x55aa; + if (ndest[0x7e] != 0x55aa) + log_warn(ERR_XRW1 + i); + ndest[0x7e] = 0xaa55; + if (ndest[0x7e] != 0xaa55) + log_warn(ERR_XRW1 + i); + ndest[0x7e] = 0xc318; + if (ndest[0x7e] != 0xc318) + log_warn(ERR_XRW1 + i); #elif defined(CONFIG_W7OLMC) - ndest[0x800] = 0x55aa; - ndest[0x801] = 0xaa55; - ndest[0x802] = 0xc318; - ndest[0x4800] = 0x55aa; - ndest[0x4801] = 0xaa55; - ndest[0x4802] = 0xc318; - if ((ndest[0x800] != 0x55aa) || - (ndest[0x801] != 0xaa55) || - (ndest[0x802] != 0xc318)) - log_warn(ERR_XRW1 + (2 * i)); /* Auto gen error code */ - if ((ndest[0x4800] != 0x55aa) || - (ndest[0x4801] != 0xaa55) || - (ndest[0x4802] != 0xc318)) - log_warn(ERR_XRW2 + (2 * i)); /* Auto gen error code */ + ndest[0x800] = 0x55aa; + ndest[0x801] = 0xaa55; + ndest[0x802] = 0xc318; + ndest[0x4800] = 0x55aa; + ndest[0x4801] = 0xaa55; + ndest[0x4802] = 0xc318; + if ((ndest[0x800] != 0x55aa) || + (ndest[0x801] != 0xaa55) || (ndest[0x802] != 0xc318)) + log_warn(ERR_XRW1 + (2 * i)); /* Auto gen error code */ + if ((ndest[0x4800] != 0x55aa) || + (ndest[0x4801] != 0xaa55) || (ndest[0x4802] != 0xc318)) + log_warn(ERR_XRW2 + (2 * i)); /* Auto gen error code */ #else -# error "Unknown W7O board configuration" +#error "Unknown W7O board configuration" #endif - } + } - printf(" FPGA ready\n"); - return; + printf(" FPGA ready\n"); + return; } |