/* * (C) Copyright 2000-2002 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. * * See file CREDITS for list of people who contributed to this * project. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation; either version 2 of * the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, * MA 02111-1307 USA * */ /* * IDE support */ #include #include #include #include #include #include #if defined(CONFIG_IDE_8xx_DIRECT) || defined(CONFIG_IDE_PCMCIA) # include #endif #ifdef CONFIG_8xx # include #endif #include #include #ifdef CONFIG_STATUS_LED # include #endif #ifdef __I386__ #include #endif #ifdef CONFIG_SHOW_BOOT_PROGRESS # include # define SHOW_BOOT_PROGRESS(arg) show_boot_progress(arg) #else # define SHOW_BOOT_PROGRESS(arg) #endif #undef IDE_DEBUG #ifdef IDE_DEBUG #define PRINTF(fmt,args...) printf (fmt ,##args) #else #define PRINTF(fmt,args...) #endif #if (CONFIG_COMMANDS & CFG_CMD_IDE) /* Timings for IDE Interface * * SETUP / LENGTH / HOLD - cycles valid for 50 MHz clk * 70 165 30 PIO-Mode 0, [ns] * 4 9 2 [Cycles] * 50 125 20 PIO-Mode 1, [ns] * 3 7 2 [Cycles] * 30 100 15 PIO-Mode 2, [ns] * 2 6 1 [Cycles] * 30 80 10 PIO-Mode 3, [ns] * 2 5 1 [Cycles] * 25 70 10 PIO-Mode 4, [ns] * 2 4 1 [Cycles] */ const static pio_config_t pio_config_ns [IDE_MAX_PIO_MODE+1] = { /* Setup Length Hold */ { 70, 165, 30 }, /* PIO-Mode 0, [ns] */ { 50, 125, 20 }, /* PIO-Mode 1, [ns] */ { 30, 101, 15 }, /* PIO-Mode 2, [ns] */ { 30, 80, 10 }, /* PIO-Mode 3, [ns] */ { 25, 70, 10 }, /* PIO-Mode 4, [ns] */ }; static pio_config_t pio_config_clk [IDE_MAX_PIO_MODE+1]; #ifndef CFG_PIO_MODE #define CFG_PIO_MODE 0 /* use a relaxed default */ #endif static int pio_mode = CFG_PIO_MODE; /* Make clock cycles and always round up */ #define PCMCIA_MK_CLKS( t, T ) (( (t) * (T) + 999U ) / 1000U ) /* ------------------------------------------------------------------------- */ /* Current I/O Device */ static int curr_device = -1; /* Current offset for IDE0 / IDE1 bus access */ ulong ide_bus_offset[CFG_IDE_MAXBUS] = { #if defined(CFG_ATA_IDE0_OFFSET) CFG_ATA_IDE0_OFFSET, #endif #if defined(CFG_ATA_IDE1_OFFSET) && (CFG_IDE_MAXBUS > 1) CFG_ATA_IDE1_OFFSET, #endif }; #ifdef __PPC__ #define ATA_CURR_BASE(dev) (CFG_ATA_BASE_ADDR+ide_bus_offset[IDE_BUS(dev)]) #endif #ifndef CONFIG_AMIGAONEG3SE static int ide_bus_ok[CFG_IDE_MAXBUS]; #else static int ide_bus_ok[CFG_IDE_MAXBUS] = {0,}; #endif static block_dev_desc_t ide_dev_desc[CFG_IDE_MAXDEVICE]; /* ------------------------------------------------------------------------- */ #ifdef CONFIG_IDE_LED #ifndef CONFIG_KUP4K static void ide_led (uchar led, uchar status); #else extern void ide_led (uchar led, uchar status); #endif #else #ifndef CONFIG_AMIGAONEG3SE #define ide_led(a,b) /* dummy */ #else extern void ide_led(uchar led, uchar status); #define LED_IDE1 1 #define LED_IDE2 2 #define CONFIG_IDE_LED 1 #define DEVICE_LED(x) 1 #endif #endif #ifdef CONFIG_IDE_RESET static void ide_reset (void); #else #define ide_reset() /* dummy */ #endif static void ide_ident (block_dev_desc_t *dev_desc); static uchar ide_wait (int dev, ulong t); #define IDE_TIME_OUT 2000 /* 2 sec timeout */ #define ATAPI_TIME_OUT 7000 /* 7 sec timeout (5 sec seems to work...) */ #define IDE_SPIN_UP_TIME_OUT 5000 /* 5 sec spin-up timeout */ static void __inline__ ide_outb(int dev, int port, unsigned char val); static unsigned char __inline__ ide_inb(int dev, int port); #ifdef __PPC__ static void input_swap_data(int dev, ulong *sect_buf, int words); #endif static void input_data(int dev, ulong *sect_buf, int words); static void output_data(int dev, ulong *sect_buf, int words); static void ident_cpy (unsigned char *dest, unsigned char *src, unsigned int len); #ifdef CONFIG_ATAPI static void atapi_inquiry(block_dev_desc_t *dev_desc); ulong atapi_read (int device, ulong blknr, ulong blkcnt, ulong *buffer); #endif #ifdef CONFIG_IDE_8xx_DIRECT static void set_pcmcia_timing (int pmode); #else #define set_pcmcia_timing(a) /* dummy */ #endif /* ------------------------------------------------------------------------- */ int do_ide (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) { int rcode = 0; switch (argc) { case 0: case 1: printf ("Usage:\n%s\n", cmdtp->usage); return 1; case 2: if (strncmp(argv[1],"res",3) == 0) { puts ("\nReset IDE" #ifdef CONFIG_IDE_8xx_DIRECT " on PCMCIA " PCMCIA_SLOT_MSG #endif ": "); ide_init (); return 0; } else if (strncmp(argv[1],"inf",3) == 0) { int i; putc ('\n'); for (i=0; i= CFG_IDE_MAXDEVICE)) { puts ("\nno IDE devices available\n"); return 1; } printf ("\nIDE device %d: ", curr_device); dev_print(&ide_dev_desc[curr_device]); return 0; } else if (strncmp(argv[1],"part",4) == 0) { int dev, ok; for (ok=0, dev=0; devusage); return 1; case 3: if (strncmp(argv[1],"dev",3) == 0) { int dev = (int)simple_strtoul(argv[2], NULL, 10); printf ("\nIDE device %d: ", dev); if (dev >= CFG_IDE_MAXDEVICE) { puts ("unknown device\n"); return 1; } dev_print(&ide_dev_desc[dev]); /*ide_print (dev);*/ if (ide_dev_desc[dev].type == DEV_TYPE_UNKNOWN) { return 1; } curr_device = dev; puts ("... is now current device\n"); return 0; } else if (strncmp(argv[1],"part",4) == 0) { int dev = (int)simple_strtoul(argv[2], NULL, 10); if (ide_dev_desc[dev].part_type!=PART_TYPE_UNKNOWN) { print_part(&ide_dev_desc[dev]); } else { printf ("\nIDE device %d not available\n", dev); rcode = 1; } return rcode; #if 0 } else if (strncmp(argv[1],"pio",4) == 0) { int mode = (int)simple_strtoul(argv[2], NULL, 10); if ((mode >= 0) && (mode <= IDE_MAX_PIO_MODE)) { puts ("\nSetting "); pio_mode = mode; ide_init (); } else { printf ("\nInvalid PIO mode %d (0 ... %d only)\n", mode, IDE_MAX_PIO_MODE); } return; #endif } printf ("Usage:\n%s\n", cmdtp->usage); return 1; default: /* at least 4 args */ if (strcmp(argv[1],"read") == 0) { ulong addr = simple_strtoul(argv[2], NULL, 16); ulong blk = simple_strtoul(argv[3], NULL, 16); ulong cnt = simple_strtoul(argv[4], NULL, 16); ulong n; printf ("\nIDE read: device %d block # %ld, count %ld ... ", curr_device, blk, cnt); n = ide_dev_desc[curr_device].block_read (curr_device, blk, cnt, (ulong *)addr); /* flush cache after read */ flush_cache (addr, cnt*ide_dev_desc[curr_device].blksz); printf ("%ld blocks read: %s\n", n, (n==cnt) ? "OK" : "ERROR"); if (n==cnt) { return 0; } else { return 1; } } else if (strcmp(argv[1],"write") == 0) { ulong addr = simple_strtoul(argv[2], NULL, 16); ulong blk = simple_strtoul(argv[3], NULL, 16); ulong cnt = simple_strtoul(argv[4], NULL, 16); ulong n; printf ("\nIDE write: device %d block # %ld, count %ld ... ", curr_device, blk, cnt); n = ide_write (curr_device, blk, cnt, (ulong *)addr); printf ("%ld blocks written: %s\n", n, (n==cnt) ? "OK" : "ERROR"); if (n==cnt) { return 0; } else { return 1; } } else { printf ("Usage:\n%s\n", cmdtp->usage); rcode = 1; } return rcode; } } int do_diskboot (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) { char *boot_device = NULL; char *ep; int dev, part = 0; ulong cnt; ulong addr; disk_partition_t info; image_header_t *hdr; int rcode = 0; switch (argc) { case 1: addr = CFG_LOAD_ADDR; boot_device = getenv ("bootdevice"); break; case 2: addr = simple_strtoul(argv[1], NULL, 16); boot_device = getenv ("bootdevice"); break; case 3: addr = simple_strtoul(argv[1], NULL, 16); boot_device = argv[2]; break; default: printf ("Usage:\n%s\n", cmdtp->usage); SHOW_BOOT_PROGRESS (-1); return 1; } if (!boot_device) { puts ("\n** No boot device **\n"); SHOW_BOOT_PROGRESS (-1); return 1; } dev = simple_strtoul(boot_device, &ep, 16); if (ide_dev_desc[dev].type==DEV_TYPE_UNKNOWN) { printf ("\n** Device %d not available\n", dev); SHOW_BOOT_PROGRESS (-1); return 1; } if (*ep) { if (*ep != ':') { puts ("\n** Invalid boot device, use `dev[:part]' **\n"); SHOW_BOOT_PROGRESS (-1); return 1; } part = simple_strtoul(++ep, NULL, 16); } if (get_partition_info (&ide_dev_desc[dev], part, &info)) { SHOW_BOOT_PROGRESS (-1); return 1; } if ((strncmp(info.type, BOOT_PART_TYPE, sizeof(info.type)) != 0) && (strncmp(info.type, BOOT_PART_COMP, sizeof(info.type)) != 0)) { printf ("\n** Invalid partition type \"%.32s\"" " (expect \"" BOOT_PART_TYPE "\")\n", info.type); SHOW_BOOT_PROGRESS (-1); return 1; } printf ("\nLoading from IDE device %d, partition %d: " "Name: %.32s Type: %.32s\n", dev, part, info.name, info.type); PRINTF ("First Block: %ld, # of blocks: %ld, Block Size: %ld\n", info.start, info.size, info.blksz); if (ide_dev_desc[dev].block_read (dev, info.start, 1, (ulong *)addr) != 1) { printf ("** Read error on %d:%d\n", dev, part); SHOW_BOOT_PROGRESS (-1); return 1; } hdr = (image_header_t *)addr; if (ntohl(hdr->ih_magic) == IH_MAGIC) { print_image_hdr (hdr); cnt = (ntohl(hdr->ih_size) + sizeof(image_header_t)); cnt += info.blksz - 1; cnt /= info.blksz; cnt -= 1; } else { printf("\n** Bad Magic Number **\n"); SHOW_BOOT_PROGRESS (-1); return 1; } if (ide_dev_desc[dev].block_read (dev, info.start+1, cnt, (ulong *)(addr+info.blksz)) != cnt) { printf ("** Read error on %d:%d\n", dev, part); SHOW_BOOT_PROGRESS (-1); return 1; } /* Loading ok, update default load address */ load_addr = addr; /* Check if we should attempt an auto-start */ if (((ep = getenv("autostart")) != NULL) && (strcmp(ep,"yes") == 0)) { char *local_args[2]; extern int do_bootm (cmd_tbl_t *, int, int, char *[]); local_args[0] = argv[0]; local_args[1] = NULL; printf ("Automatic boot of image at addr 0x%08lX ...\n", addr); do_bootm (cmdtp, 0, 1, local_args); rcode = 1; } return rcode; } /* ------------------------------------------------------------------------- */ void ide_init (void) { DECLARE_GLOBAL_DATA_PTR; #ifdef CONFIG_IDE_8xx_DIRECT volatile immap_t *immr = (immap_t *)CFG_IMMR; volatile pcmconf8xx_t *pcmp = &(immr->im_pcmcia); #endif unsigned char c; int i, bus; #ifdef CONFIG_AMIGAONEG3SE unsigned int max_bus_scan; unsigned int ata_reset_time; char *s; #endif #ifdef CONFIG_IDE_8xx_PCCARD extern int pcmcia_on (void); extern int ide_devices_found; /* Initialized in check_ide_device() */ WATCHDOG_RESET(); ide_devices_found = 0; /* initialize the PCMCIA IDE adapter card */ pcmcia_on(); if (!ide_devices_found) return; udelay (1000000); /* 1 s */ #endif /* CONFIG_IDE_8xx_PCCARD */ WATCHDOG_RESET(); /* Initialize PIO timing tables */ for (i=0; i <= IDE_MAX_PIO_MODE; ++i) { pio_config_clk[i].t_setup = PCMCIA_MK_CLKS(pio_config_ns[i].t_setup, gd->bus_clk); pio_config_clk[i].t_length = PCMCIA_MK_CLKS(pio_config_ns[i].t_length, gd->bus_clk); pio_config_clk[i].t_hold = PCMCIA_MK_CLKS(pio_config_ns[i].t_hold, gd->bus_clk); PRINTF ("PIO Mode %d: setup=%2d ns/%d clk" " len=%3d ns/%d clk" " hold=%2d ns/%d clk\n", i, pio_config_ns[i].t_setup, pio_config_clk[i].t_setup, pio_config_ns[i].t_length, pio_config_clk[i].t_length, pio_config_ns[i].t_hold, pio_config_clk[i].t_hold); } /* Reset the IDE just to be sure. * Light LED's to show */ ide_led ((LED_IDE1 | LED_IDE2), 1); /* LED's on */ ide_reset (); /* ATAPI Drives seems to need a proper IDE Reset */ #ifdef CONFIG_IDE_8xx_DIRECT /* PCMCIA / IDE initialization for common mem space */ pcmp->pcmc_pgcrb = 0; #endif /* start in PIO mode 0 - most relaxed timings */ pio_mode = 0; set_pcmcia_timing (pio_mode); /* * Wait for IDE to get ready. * According to spec, this can take up to 31 seconds! */ #ifndef CONFIG_AMIGAONEG3SE for (bus=0; bus (ata_reset_time * 100)) { #else if (i > (ATA_RESET_TIME * 100)) { #endif puts ("** Timeout **\n"); ide_led ((LED_IDE1 | LED_IDE2), 0); /* LED's off */ #ifdef CONFIG_AMIGAONEG3SE /* If this is the second bus, the first one was OK */ if (bus != 0) { ide_bus_ok[bus] = 0; goto skip_bus; } #endif return; } if ((i >= 100) && ((i%100)==0)) { putc ('.'); } } while (c & ATA_STAT_BUSY); if (c & (ATA_STAT_BUSY | ATA_STAT_FAULT)) { puts ("not available "); PRINTF ("Status = 0x%02X ", c); #ifndef CONFIG_ATAPI /* ATAPI Devices do not set DRDY */ } else if ((c & ATA_STAT_READY) == 0) { puts ("not available "); PRINTF ("Status = 0x%02X ", c); #endif } else { puts ("OK "); ide_bus_ok[bus] = 1; } WATCHDOG_RESET(); } #ifdef CONFIG_AMIGAONEG3SE skip_bus: #endif putc ('\n'); ide_led ((LED_IDE1 | LED_IDE2), 0); /* LED's off */ curr_device = -1; for (i=0; i 0) && (ide_dev_desc[i].blksz > 0)) { init_part (&ide_dev_desc[i]); /* initialize partition type */ if (curr_device < 0) curr_device = i; } } WATCHDOG_RESET(); } /* ------------------------------------------------------------------------- */ block_dev_desc_t * ide_get_dev(int dev) { return ((block_dev_desc_t *)&ide_dev_desc[dev]); } #ifdef CONFIG_IDE_8xx_DIRECT static void set_pcmcia_timing (int pmode) { volatile immap_t *immr = (immap_t *)CFG_IMMR; volatile pcmconf8xx_t *pcmp = &(immr->im_pcmcia); ulong timings; PRINTF ("Set timing for PIO Mode %d\n", pmode); timings = PCMCIA_SHT(pio_config_clk[pmode].t_hold) | PCMCIA_SST(pio_config_clk[pmode].t_setup) | PCMCIA_SL (pio_config_clk[pmode].t_length) ; /* IDE 0 */ pcmp->pcmc_pbr0 = CFG_PCMCIA_PBR0; pcmp->pcmc_por0 = CFG_PCMCIA_POR0 #if (CFG_PCMCIA_POR0 != 0) | timings #endif ; PRINTF ("PBR0: %08x POR0: %08x\n", pcmp->pcmc_pbr0, pcmp->pcmc_por0); pcmp->pcmc_pbr1 = CFG_PCMCIA_PBR1; pcmp->pcmc_por1 = CFG_PCMCIA_POR1 #if (CFG_PCMCIA_POR1 != 0) | timings #endif ; PRINTF ("PBR1: %08x POR1: %08x\n", pcmp->pcmc_pbr1, pcmp->pcmc_por1); pcmp->pcmc_pbr2 = CFG_PCMCIA_PBR2; pcmp->pcmc_por2 = CFG_PCMCIA_POR2 #if (CFG_PCMCIA_POR2 != 0) | timings #endif ; PRINTF ("PBR2: %08x POR2: %08x\n", pcmp->pcmc_pbr2, pcmp->pcmc_por2); pcmp->pcmc_pbr3 = CFG_PCMCIA_PBR3; pcmp->pcmc_por3 = CFG_PCMCIA_POR3 #if (CFG_PCMCIA_POR3 != 0) | timings #endif ; PRINTF ("PBR3: %08x POR3: %08x\n", pcmp->pcmc_pbr3, pcmp->pcmc_por3); /* IDE 1 */ pcmp->pcmc_pbr4 = CFG_PCMCIA_PBR4; pcmp->pcmc_por4 = CFG_PCMCIA_POR4 #if (CFG_PCMCIA_POR4 != 0) | timings #endif ; PRINTF ("PBR4: %08x POR4: %08x\n", pcmp->pcmc_pbr4, pcmp->pcmc_por4); pcmp->pcmc_pbr5 = CFG_PCMCIA_PBR5; pcmp->pcmc_por5 = CFG_PCMCIA_POR5 #if (CFG_PCMCIA_POR5 != 0) | timings #endif ; PRINTF ("PBR5: %08x POR5: %08x\n", pcmp->pcmc_pbr5, pcmp->pcmc_por5); pcmp->pcmc_pbr6 = CFG_PCMCIA_PBR6; pcmp->pcmc_por6 = CFG_PCMCIA_POR6 #if (CFG_PCMCIA_POR6 != 0) | timings #endif ; PRINTF ("PBR6: %08x POR6: %08x\n", pcmp->pcmc_pbr6, pcmp->pcmc_por6); pcmp->pcmc_pbr7 = CFG_PCMCIA_PBR7; pcmp->pcmc_por7 = CFG_PCMCIA_POR7 #if (CFG_PCMCIA_POR7 != 0) | timings #endif ; PRINTF ("PBR7: %08x POR7: %08x\n", pcmp->pcmc_pbr7, pcmp->pcmc_por7); } #endif /* CONFIG_IDE_8xx_DIRECT */ /* ------------------------------------------------------------------------- */ #ifdef __PPC__ static void __inline__ ide_outb(int dev, int port, unsigned char val) { /* Ensure I/O operations complete */ __asm__ volatile("eieio"); *((uchar *)(ATA_CURR_BASE(dev)+port)) = val; #if 0 printf ("ide_outb: 0x%08lx <== 0x%02x\n", ATA_CURR_BASE(dev)+port, val); #endif } #else /* ! __PPC__ */ static void __inline__ ide_outb(int dev, int port, unsigned char val) { outb(val, port); } #endif /* __PPC__ */ #ifdef __PPC__ static unsigned char __inline__ ide_inb(int dev, int port) { uchar val; /* Ensure I/O operations complete */ __asm__ volatile("eieio"); val = *((uchar *)(ATA_CURR_BASE(dev)+port)); #if 0 printf ("ide_inb: 0x%08lx ==> 0x%02x\n", ATA_CURR_BASE(dev)+port, val); #endif return (val); } #else /* ! __PPC__ */ static unsigned char __inline__ ide_inb(int dev, int port) { return inb(port); } #endif /* __PPC__ */ #ifdef __PPC__ # ifdef CONFIG_AMIGAONEG3SE static void output_data_short(int dev, ulong *sect_buf, int words) { ushort *dbuf; volatile ushort *pbuf; pbuf = (ushort *)(ATA_CURR_BASE(dev)+ATA_DATA_REG); dbuf = (ushort *)sect_buf; while (words--) { __asm__ volatile ("eieio"); *pbuf = *dbuf++; __asm__ volatile ("eieio"); } if (words&1) *pbuf = 0; } # endif /* CONFIG_AMIGAONEG3SE */ static void input_swap_data(int dev, ulong *sect_buf, int words) { volatile ushort *pbuf = (ushort *)(ATA_CURR_BASE(dev)+ATA_DATA_REG); ushort *dbuf = (ushort *)sect_buf; while (words--) { *dbuf++ = ld_le16(pbuf); *dbuf++ = ld_le16(pbuf); } } #else /* ! __PPC__ */ #define input_swap_data(x,y,z) input_data(x,y,z) #endif /* __PPC__ */ #ifdef __PPC__ static void output_data(int dev, ulong *sect_buf, int words) { ushort *dbuf; volatile ushort *pbuf; pbuf = (ushort *)(ATA_CURR_BASE(dev)+ATA_DATA_REG); dbuf = (ushort *)sect_buf; while (words--) { __asm__ volatile ("eieio"); *pbuf = *dbuf++; __asm__ volatile ("eieio"); *pbuf = *dbuf++; } } #else /* ! __PPC__ */ static void output_data(int dev, ulong *sect_buf, int words) { outsw(ATA_DATA_REG, sect_buf, words<<1); } #endif /* __PPC__ */ #ifdef __PPC__ static void input_data(int dev, ulong *sect_buf, int words) { ushort *dbuf; volatile ushort *pbuf; pbuf = (ushort *)(ATA_CURR_BASE(dev)+ATA_DATA_REG); dbuf = (ushort *)sect_buf; while (words--) { __asm__ volatile ("eieio"); *dbuf++ = *pbuf; __asm__ volatile ("eieio"); *dbuf++ = *pbuf; } } #else /* ! __PPC__ */ static void input_data(int dev, ulong *sect_buf, int words) { insw(ATA_DATA_REG, sect_buf, words << 1); } #endif /* __PPC__ */ #ifdef CONFIG_AMIGAONEG3SE static void input_data_short(int dev, ulong *sect_buf, int words) { ushort *dbuf; volatile ushort *pbuf; pbuf = (ushort *)(ATA_CURR_BASE(dev)+ATA_DATA_REG); dbuf = (ushort *)sect_buf; while (words--) { __asm__ volatile ("eieio"); *dbuf++ = *pbuf; __asm__ volatile ("eieio"); } if (words&1) { ushort dummy; dummy = *pbuf; } } #endif /* ------------------------------------------------------------------------- */ static void ide_ident (block_dev_desc_t *dev_desc) { ulong iobuf[ATA_SECTORWORDS]; unsigned char c; hd_driveid_t *iop = (hd_driveid_t *)iobuf; #ifdef CONFIG_AMIGAONEG3SE int max_bus_scan; int retries = 0; char *s; int do_retry = 0; #endif #if 0 int mode, cycle_time; #endif int device; device=dev_desc->dev; printf (" Device %d: ", device); #ifdef CONFIG_AMIGAONEG3SE s = getenv("ide_maxbus"); if (s) { max_bus_scan = simple_strtol(s, NULL, 10); } else { max_bus_scan = CFG_IDE_MAXBUS; } if (device >= max_bus_scan*2) { dev_desc->type=DEV_TYPE_UNKNOWN; return; } #endif ide_led (DEVICE_LED(device), 1); /* LED on */ /* Select device */ ide_outb (device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device)); dev_desc->if_type=IF_TYPE_IDE; #ifdef CONFIG_ATAPI #ifdef CONFIG_AMIGAONEG3SE do_retry = 0; retries = 0; /* Warning: This will be tricky to read */ while (retries <= 1) { #endif /* CONFIG_AMIGAONEG3SE */ /* check signature */ if ((ide_inb(device,ATA_SECT_CNT) == 0x01) && (ide_inb(device,ATA_SECT_NUM) == 0x01) && (ide_inb(device,ATA_CYL_LOW) == 0x14) && (ide_inb(device,ATA_CYL_HIGH) == 0xEB)) { /* ATAPI Signature found */ dev_desc->if_type=IF_TYPE_ATAPI; /* Start Ident Command */ ide_outb (device, ATA_COMMAND, ATAPI_CMD_IDENT); /* * Wait for completion - ATAPI devices need more time * to become ready */ c = ide_wait (device, ATAPI_TIME_OUT); } else #endif { /* Start Ident Command */ ide_outb (device, ATA_COMMAND, ATA_CMD_IDENT); /* Wait for completion */ c = ide_wait (device, IDE_TIME_OUT); } ide_led (DEVICE_LED(device), 0); /* LED off */ if (((c & ATA_STAT_DRQ) == 0) || ((c & (ATA_STAT_FAULT|ATA_STAT_ERR)) != 0) ) { #ifdef CONFIG_AMIGAONEG3SE if (retries == 0) { do_retry = 1; } else { dev_desc->type=DEV_TYPE_UNKNOWN; return; } #else dev_desc->type=DEV_TYPE_UNKNOWN; return; #endif /* CONFIG_AMIGAONEG3SE */ } #ifdef CONFIG_AMIGAONEG3SE s = getenv("ide_doreset"); if (s && strcmp(s, "on") == 0 && 1 == do_retry) { /* Need to soft reset the device in case it's an ATAPI... */ PRINTF("Retrying...\n"); ide_outb (device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device)); udelay(100000); ide_outb (device, ATA_COMMAND, 0x08); udelay (100000); /* 100 ms */ retries++; } else { retries = 100; } } /* see above - ugly to read */ #endif /* CONFIG_AMIGAONEG3SE */ input_swap_data (device, iobuf, ATA_SECTORWORDS); ident_cpy (dev_desc->revision, iop->fw_rev, sizeof(dev_desc->revision)); ident_cpy (dev_desc->vendor, iop->model, sizeof(dev_desc->vendor)); ident_cpy (dev_desc->product, iop->serial_no, sizeof(dev_desc->product)); if ((iop->config & 0x0080)==0x0080) dev_desc->removable = 1; else dev_desc->removable = 0; #if 0 /* * Drive PIO mode autoselection */ mode = iop->tPIO; printf ("tPIO = 0x%02x = %d\n",mode, mode); if (mode > 2) { /* 2 is maximum allowed tPIO value */ mode = 2; PRINTF ("Override tPIO -> 2\n"); } if (iop->field_valid & 2) { /* drive implements ATA2? */ PRINTF ("Drive implements ATA2\n"); if (iop->capability & 8) { /* drive supports use_iordy? */ cycle_time = iop->eide_pio_iordy; } else { cycle_time = iop->eide_pio; } PRINTF ("cycle time = %d\n", cycle_time); mode = 4; if (cycle_time > 120) mode = 3; /* 120 ns for PIO mode 4 */ if (cycle_time > 180) mode = 2; /* 180 ns for PIO mode 3 */ if (cycle_time > 240) mode = 1; /* 240 ns for PIO mode 4 */ if (cycle_time > 383) mode = 0; /* 383 ns for PIO mode 4 */ } printf ("PIO mode to use: PIO %d\n", mode); #endif /* 0 */ #ifdef CONFIG_ATAPI if (dev_desc->if_type==IF_TYPE_ATAPI) { atapi_inquiry(dev_desc); return; } #endif /* CONFIG_ATAPI */ /* swap shorts */ dev_desc->lba = (iop->lba_capacity << 16) | (iop->lba_capacity >> 16); /* assuming HD */ dev_desc->type=DEV_TYPE_HARDDISK; dev_desc->blksz=ATA_BLOCKSIZE; dev_desc->lun=0; /* just to fill something in... */ #if 0 /* only used to test the powersaving mode, * if enabled, the drive goes after 5 sec * in standby mode */ ide_outb (device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device)); c = ide_wait (device, IDE_TIME_OUT); ide_outb (device, ATA_SECT_CNT, 1); ide_outb (device, ATA_LBA_LOW, 0); ide_outb (device, ATA_LBA_MID, 0); ide_outb (device, ATA_LBA_HIGH, 0); ide_outb (device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device)); ide_outb (device, ATA_COMMAND, 0xe3); udelay (50); c = ide_wait (device, IDE_TIME_OUT); /* can't take over 500 ms */ #endif } /* ------------------------------------------------------------------------- */ ulong ide_read (int device, ulong blknr, ulong blkcnt, ulong *buffer) { ulong n = 0; unsigned char c; unsigned char pwrsave=0; /* power save */ PRINTF ("ide_read dev %d start %lX, blocks %lX buffer at %lX\n", device, blknr, blkcnt, (ulong)buffer); ide_led (DEVICE_LED(device), 1); /* LED on */ /* Select device */ ide_outb (device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device)); c = ide_wait (device, IDE_TIME_OUT); if (c & ATA_STAT_BUSY) { printf ("IDE read: device %d not ready\n", device); goto IDE_READ_E; } /* first check if the drive is in Powersaving mode, if yes, * increase the timeout value */ ide_outb (device, ATA_COMMAND, ATA_CMD_CHK_PWR); udelay (50); c = ide_wait (device, IDE_TIME_OUT); /* can't take over 500 ms */ if (c & ATA_STAT_BUSY) { printf ("IDE read: device %d not ready\n", device); goto IDE_READ_E; } if ((c & ATA_STAT_ERR) == ATA_STAT_ERR) { printf ("No Powersaving mode %X\n", c); } else { c = ide_inb(device,ATA_SECT_CNT); PRINTF("Powersaving %02X\n",c); if(c==0) pwrsave=1; } while (blkcnt-- > 0) { c = ide_wait (device, IDE_TIME_OUT); if (c & ATA_STAT_BUSY) { printf ("IDE read: device %d not ready\n", device); break; } ide_outb (device, ATA_SECT_CNT, 1); ide_outb (device, ATA_LBA_LOW, (blknr >> 0) & 0xFF); ide_outb (device, ATA_LBA_MID, (blknr >> 8) & 0xFF); ide_outb (device, ATA_LBA_HIGH, (blknr >> 16) & 0xFF); ide_outb (device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device) | ((blknr >> 24) & 0xF) ); ide_outb (device, ATA_COMMAND, ATA_CMD_READ); udelay (50); if(pwrsave) { c = ide_wait (device, IDE_SPIN_UP_TIME_OUT); /* may take up to 4 sec */ pwrsave=0; } else { c = ide_wait (device, IDE_TIME_OUT); /* can't take over 500 ms */ } if ((c&(ATA_STAT_DRQ|ATA_STAT_BUSY|ATA_STAT_ERR)) != ATA_STAT_DRQ) { printf ("Error (no IRQ) dev %d blk %ld: status 0x%02x\n", device, blknr, c); break; } input_data (device, buffer, ATA_SECTORWORDS); (void) ide_inb (device, ATA_STATUS); /* clear IRQ */ ++n; ++blknr; buffer += ATA_SECTORWORDS; } IDE_READ_E: ide_led (DEVICE_LED(device), 0); /* LED off */ return (n); } /* ------------------------------------------------------------------------- */ ulong ide_write (int device, ulong blknr, ulong blkcnt, ulong *buffer) { ulong n = 0; unsigned char c; ide_led (DEVICE_LED(device), 1); /* LED on */ /* Select device */ ide_outb (device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device)); while (blkcnt-- > 0) { c = ide_wait (device, IDE_TIME_OUT); if (c & ATA_STAT_BUSY) { printf ("IDE read: device %d not ready\n", device); goto WR_OUT; } ide_outb (device, ATA_SECT_CNT, 1); ide_outb (device, ATA_LBA_LOW, (blknr >> 0) & 0xFF); ide_outb (device, ATA_LBA_MID, (blknr >> 8) & 0xFF); ide_outb (device, ATA_LBA_HIGH, (blknr >> 16) & 0xFF); ide_outb (device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device) | ((blknr >> 24) & 0xF) ); ide_outb (device, ATA_COMMAND, ATA_CMD_WRITE); udelay (50); c = ide_wait (device, IDE_TIME_OUT); /* can't take over 500 ms */ if ((c&(ATA_STAT_DRQ|ATA_STAT_BUSY|ATA_STAT_ERR)) != ATA_STAT_DRQ) { printf ("Error (no IRQ) dev %d blk %ld: status 0x%02x\n", device, blknr, c); goto WR_OUT; } output_data (device, buffer, ATA_SECTORWORDS); c = ide_inb (device, ATA_STATUS); /* clear IRQ */ ++n; ++blknr; buffer += ATA_SECTORWORDS; } WR_OUT: ide_led (DEVICE_LED(device), 0); /* LED off */ return (n); } /* ------------------------------------------------------------------------- */ /* * copy src to dest, skipping leading and trailing blanks and null * terminate the string */ static void ident_cpy (unsigned char *dest, unsigned char *src, unsigned int len) { int start,end; start=0; while (startstart) { if (src[end]!=' ') break; end--; } for ( ; start<=end; start++) { *dest++=src[start]; } *dest='\0'; } /* ------------------------------------------------------------------------- */ /* * Wait until Busy bit is off, or timeout (in ms) * Return last status */ static uchar ide_wait (int dev, ulong t) { ulong delay = 10 * t; /* poll every 100 us */ uchar c; while ((c = ide_inb(dev, ATA_STATUS)) & ATA_STAT_BUSY) { udelay (100); if (delay-- == 0) { break; } } return (c); } /* ------------------------------------------------------------------------- */ #ifdef CONFIG_IDE_RESET extern void ide_set_reset(int idereset); static void ide_reset (void) { #if defined(CFG_PB_12V_ENABLE) || defined(CFG_PB_IDE_MOTOR) volatile immap_t *immr = (immap_t *)CFG_IMMR; #endif int i; curr_device = -1; for (i=0; iim_cpm.cp_pbdat &= ~(CFG_PB_12V_ENABLE); /* 12V Enable output OFF */ immr->im_cpm.cp_pbpar &= ~(CFG_PB_12V_ENABLE); immr->im_cpm.cp_pbodr &= ~(CFG_PB_12V_ENABLE); immr->im_cpm.cp_pbdir |= CFG_PB_12V_ENABLE; /* wait 500 ms for the voltage to stabilize */ for (i=0; i<500; ++i) { udelay (1000); } immr->im_cpm.cp_pbdat |= CFG_PB_12V_ENABLE; /* 12V Enable output ON */ #endif /* CFG_PB_12V_ENABLE */ #ifdef CFG_PB_IDE_MOTOR /* configure IDE Motor voltage monitor pin as input */ immr->im_cpm.cp_pbpar &= ~(CFG_PB_IDE_MOTOR); immr->im_cpm.cp_pbodr &= ~(CFG_PB_IDE_MOTOR); immr->im_cpm.cp_pbdir &= ~(CFG_PB_IDE_MOTOR); /* wait up to 1 s for the motor voltage to stabilize */ for (i=0; i<1000; ++i) { if ((immr->im_cpm.cp_pbdat & CFG_PB_IDE_MOTOR) != 0) { break; } udelay (1000); } if (i == 1000) { /* Timeout */ printf ("\nWarning: 5V for IDE Motor missing\n"); # ifdef CONFIG_STATUS_LED # ifdef STATUS_LED_YELLOW status_led_set (STATUS_LED_YELLOW, STATUS_LED_ON ); # endif # ifdef STATUS_LED_GREEN status_led_set (STATUS_LED_GREEN, STATUS_LED_OFF); # endif # endif /* CONFIG_STATUS_LED */ } #endif /* CFG_PB_IDE_MOTOR */ WATCHDOG_RESET(); /* de-assert RESET signal */ ide_set_reset(0); /* wait 250 ms */ for (i=0; i<250; ++i) { udelay (1000); } } #endif /* CONFIG_IDE_RESET */ /* ------------------------------------------------------------------------- */ #if defined(CONFIG_IDE_LED) && !defined(CONFIG_AMIGAONEG3SE) && !defined(CONFIG_KUP4K) static uchar led_buffer = 0; /* Buffer for current LED status */ static void ide_led (uchar led, uchar status) { uchar *led_port = LED_PORT; if (status) { /* switch LED on */ led_buffer |= led; } else { /* switch LED off */ led_buffer &= ~led; } *led_port = led_buffer; } #endif /* CONFIG_IDE_LED */ /* ------------------------------------------------------------------------- */ #ifdef CONFIG_ATAPI /**************************************************************************** * ATAPI Support */ #undef ATAPI_DEBUG #ifdef ATAPI_DEBUG #define AT_PRINTF(fmt,args...) printf (fmt ,##args) #else #define AT_PRINTF(fmt,args...) #endif #ifdef __PPC__ /* since ATAPI may use commands with not 4 bytes alligned length * we have our own transfer functions, 2 bytes alligned */ static void output_data_shorts(int dev, ushort *sect_buf, int shorts) { ushort *dbuf; volatile ushort *pbuf; pbuf = (ushort *)(ATA_CURR_BASE(dev)+ATA_DATA_REG); dbuf = (ushort *)sect_buf; while (shorts--) { __asm__ volatile ("eieio"); *pbuf = *dbuf++; } } static void input_data_shorts(int dev, ushort *sect_buf, int shorts) { ushort *dbuf; volatile ushort *pbuf; pbuf = (ushort *)(ATA_CURR_BASE(dev)+ATA_DATA_REG); dbuf = (ushort *)sect_buf; while (shorts--) { __asm__ volatile ("eieio"); *dbuf++ = *pbuf; } } #else /* ! __PPC__ */ static void output_data_shorts(int dev, ushort *sect_buf, int shorts) { outsw(ATA_DATA_REG, sect_buf, shorts); } static void input_data_shorts(int dev, ushort *sect_buf, int shorts) { insw(ATA_DATA_REG, sect_buf, shorts); } #endif /* __PPC__ */ /* * Wait until (Status & mask) == res, or timeout (in ms) * Return last status * This is used since some ATAPI CD ROMs clears their Busy Bit first * and then they set their DRQ Bit */ static uchar atapi_wait_mask (int dev, ulong t,uchar mask, uchar res) { ulong delay = 10 * t; /* poll every 100 us */ uchar c; c = ide_inb(dev,ATA_DEV_CTL); /* prevents to read the status before valid */ while (((c = ide_inb(dev, ATA_STATUS)) & mask) != res) { /* break if error occurs (doesn't make sense to wait more) */ if((c & ATA_STAT_ERR)==ATA_STAT_ERR) break; udelay (100); if (delay-- == 0) { break; } } return (c); } /* * issue an atapi command */ unsigned char atapi_issue(int device,unsigned char* ccb,int ccblen, unsigned char * buffer,int buflen) { unsigned char c,err,mask,res; int n; ide_led (DEVICE_LED(device), 1); /* LED on */ /* Select device */ mask = ATA_STAT_BUSY|ATA_STAT_DRQ; res = 0; #ifdef CONFIG_AMIGAONEG3SE # warning THF: Removed LBA mode ??? #endif ide_outb (device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device)); c = atapi_wait_mask(device,ATAPI_TIME_OUT,mask,res); if ((c & mask) != res) { printf ("ATAPI_ISSUE: device %d not ready status %X\n", device,c); err=0xFF; goto AI_OUT; } /* write taskfile */ ide_outb (device, ATA_ERROR_REG, 0); /* no DMA, no overlaped */ ide_outb (device, ATA_SECT_CNT, 0); ide_outb (device, ATA_SECT_NUM, 0); ide_outb (device, ATA_CYL_LOW, (unsigned char)(buflen & 0xFF)); ide_outb (device, ATA_CYL_HIGH, (unsigned char)((buflen>>8) & 0xFF)); #ifdef CONFIG_AMIGAONEG3SE # warning THF: Removed LBA mode ??? #endif ide_outb (device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device)); ide_outb (device, ATA_COMMAND, ATAPI_CMD_PACKET); udelay (50); mask = ATA_STAT_DRQ|ATA_STAT_BUSY|ATA_STAT_ERR; res = ATA_STAT_DRQ; c = atapi_wait_mask(device,ATAPI_TIME_OUT,mask,res); if ((c & mask) != res) { /* DRQ must be 1, BSY 0 */ printf ("ATTAPI_ISSUE: Error (no IRQ) before sending ccb dev %d status 0x%02x\n",device,c); err=0xFF; goto AI_OUT; } output_data_shorts (device, (unsigned short *)ccb,ccblen/2); /* write command block */ /* ATAPI Command written wait for completition */ udelay (5000); /* device must set bsy */ mask = ATA_STAT_DRQ|ATA_STAT_BUSY|ATA_STAT_ERR; /* if no data wait for DRQ = 0 BSY = 0 * if data wait for DRQ = 1 BSY = 0 */ res=0; if(buflen) res = ATA_STAT_DRQ; c = atapi_wait_mask(device,ATAPI_TIME_OUT,mask,res); if ((c & mask) != res ) { if (c & ATA_STAT_ERR) { err=(ide_inb(device,ATA_ERROR_REG))>>4; AT_PRINTF("atapi_issue 1 returned sense key %X status %02X\n",err,c); } else { printf ("ATTAPI_ISSUE: (no DRQ) after sending ccb (%x) status 0x%02x\n", ccb[0],c); err=0xFF; } goto AI_OUT; } n=ide_inb(device, ATA_CYL_HIGH); n<<=8; n+=ide_inb(device, ATA_CYL_LOW); if(n>buflen) { printf("ERROR, transfer bytes %d requested only %d\n",n,buflen); err=0xff; goto AI_OUT; } if((n==0)&&(buflen<0)) { printf("ERROR, transfer bytes %d requested %d\n",n,buflen); err=0xff; goto AI_OUT; } if(n!=buflen) { AT_PRINTF("WARNING, transfer bytes %d not equal with requested %d\n",n,buflen); } if(n!=0) { /* data transfer */ AT_PRINTF("ATAPI_ISSUE: %d Bytes to transfer\n",n); /* we transfer shorts */ n>>=1; /* ok now decide if it is an in or output */ if ((ide_inb(device, ATA_SECT_CNT)&0x02)==0) { AT_PRINTF("Write to device\n"); output_data_shorts(device,(unsigned short *)buffer,n); } else { AT_PRINTF("Read from device @ %p shorts %d\n",buffer,n); input_data_shorts(device,(unsigned short *)buffer,n); } } udelay(5000); /* seems that some CD ROMs need this... */ mask = ATA_STAT_BUSY|ATA_STAT_ERR; res=0; c = atapi_wait_mask(device,ATAPI_TIME_OUT,mask,res); if ((c & ATA_STAT_ERR) == ATA_STAT_ERR) { err=(ide_inb(device,ATA_ERROR_REG) >> 4); AT_PRINTF("atapi_issue 2 returned sense key %X status %X\n",err,c); } else { err = 0; } AI_OUT: ide_led (DEVICE_LED(device), 0); /* LED off */ return (err); } /* * sending the command to atapi_issue. If an status other than good * returns, an request_sense will be issued */ #define ATAPI_DRIVE_NOT_READY 100 #define ATAPI_UNIT_ATTN 10 unsigned char atapi_issue_autoreq (int device, unsigned char* ccb, int ccblen, unsigned char *buffer, int buflen) { unsigned char sense_data[18],sense_ccb[12]; unsigned char res,key,asc,ascq; int notready,unitattn; #ifdef CONFIG_AMIGAONEG3SE char *s; unsigned int timeout, retrycnt; s = getenv("ide_cd_timeout"); timeout = s ? (simple_strtol(s, NULL, 10)*1000000)/5 : 0; retrycnt = 0; #endif unitattn=ATAPI_UNIT_ATTN; notready=ATAPI_DRIVE_NOT_READY; retry: res= atapi_issue(device,ccb,ccblen,buffer,buflen); if (res==0) return (0); /* Ok */ if (res==0xFF) return (0xFF); /* error */ AT_PRINTF("(auto_req)atapi_issue returned sense key %X\n",res); memset(sense_ccb,0,sizeof(sense_ccb)); memset(sense_data,0,sizeof(sense_data)); sense_ccb[0]=ATAPI_CMD_REQ_SENSE; sense_ccb[4]=18; /* allocation Length */ res=atapi_issue(device,sense_ccb,12,sense_data,18); key=(sense_data[2]&0xF); asc=(sense_data[12]); ascq=(sense_data[13]); AT_PRINTF("ATAPI_CMD_REQ_SENSE returned %x\n",res); AT_PRINTF(" Sense page: %02X key %02X ASC %02X ASCQ %02X\n", sense_data[0], key, asc, ascq); if((key==0)) return 0; /* ok device ready */ if((key==6)|| (asc==0x29) || (asc==0x28)) { /* Unit Attention */ if(unitattn-->0) { udelay(200*1000); goto retry; } printf("Unit Attention, tried %d\n",ATAPI_UNIT_ATTN); goto error; } if((asc==0x4) && (ascq==0x1)) { /* not ready, but will be ready soon */ if (notready-->0) { udelay(200*1000); goto retry; } printf("Drive not ready, tried %d times\n",ATAPI_DRIVE_NOT_READY); goto error; } if(asc==0x3a) { AT_PRINTF("Media not present\n"); goto error; } #ifdef CONFIG_AMIGAONEG3SE if ((sense_data[2]&0xF)==0x0B) { AT_PRINTF("ABORTED COMMAND...retry\n"); if (retrycnt++ < 4) goto retry; return (0xFF); } if ((sense_data[2]&0xf) == 0x02 && sense_data[12] == 0x04 && sense_data[13] == 0x01 ) { AT_PRINTF("Waiting for unit to become active\n"); udelay(timeout); if (retrycnt++ < 4) goto retry; return 0xFF; } #endif /* CONFIG_AMIGAONEG3SE */ printf ("ERROR: Unknown Sense key %02X ASC %02X ASCQ %02X\n",key,asc,ascq); error: AT_PRINTF ("ERROR Sense key %02X ASC %02X ASCQ %02X\n",key,asc,ascq); return (0xFF); } static void atapi_inquiry(block_dev_desc_t * dev_desc) { unsigned char ccb[12]; /* Command descriptor block */ unsigned char iobuf[64]; /* temp buf */ unsigned char c; int device; device=dev_desc->dev; dev_desc->type=DEV_TYPE_UNKNOWN; /* not yet valid */ dev_desc->block_read=atapi_read; memset(ccb,0,sizeof(ccb)); memset(iobuf,0,sizeof(iobuf)); ccb[0]=ATAPI_CMD_INQUIRY; ccb[4]=40; /* allocation Legnth */ c=atapi_issue_autoreq(device,ccb,12,(unsigned char *)iobuf,40); AT_PRINTF("ATAPI_CMD_INQUIRY returned %x\n",c); if (c!=0) return; /* copy device ident strings */ ident_cpy(dev_desc->vendor,&iobuf[8],8); ident_cpy(dev_desc->product,&iobuf[16],16); ident_cpy(dev_desc->revision,&iobuf[32],5); dev_desc->lun=0; dev_desc->lba=0; dev_desc->blksz=0; dev_desc->type=iobuf[0] & 0x1f; if ((iobuf[1]&0x80)==0x80) dev_desc->removable = 1; else dev_desc->removable = 0; memset(ccb,0,sizeof(ccb)); memset(iobuf,0,sizeof(iobuf)); ccb[0]=ATAPI_CMD_START_STOP; ccb[4]=0x03; /* start */ c=atapi_issue_autoreq(device,ccb,12,(unsigned char *)iobuf,0); AT_PRINTF("ATAPI_CMD_START_STOP returned %x\n",c); if (c!=0) return; memset(ccb,0,sizeof(ccb)); memset(iobuf,0,sizeof(iobuf)); c=atapi_issue_autoreq(device,ccb,12,(unsigned char *)iobuf,0); AT_PRINTF("ATAPI_CMD_UNIT_TEST_READY returned %x\n",c); if (c!=0) return; memset(ccb,0,sizeof(ccb)); memset(iobuf,0,sizeof(iobuf)); ccb[0]=ATAPI_CMD_READ_CAP; c=atapi_issue_autoreq(device,ccb,12,(unsigned char *)iobuf,8); AT_PRINTF("ATAPI_CMD_READ_CAP returned %x\n",c); if (c!=0) return; AT_PRINTF("Read Cap: LBA %02X%02X%02X%02X blksize %02X%02X%02X%02X\n", iobuf[0],iobuf[1],iobuf[2],iobuf[3], iobuf[4],iobuf[5],iobuf[6],iobuf[7]); dev_desc->lba =((unsigned long)iobuf[0]<<24) + ((unsigned long)iobuf[1]<<16) + ((unsigned long)iobuf[2]<< 8) + ((unsigned long)iobuf[3]); dev_desc->blksz=((unsigned long)iobuf[4]<<24) + ((unsigned long)iobuf[5]<<16) + ((unsigned long)iobuf[6]<< 8) + ((unsigned long)iobuf[7]); return; } /* * atapi_read: * we transfer only one block per command, since the multiple DRQ per * command is not yet implemented */ #define ATAPI_READ_MAX_BYTES 2048 /* we read max 2kbytes */ #define ATAPI_READ_BLOCK_SIZE 2048 /* assuming CD part */ #define ATAPI_READ_MAX_BLOCK ATAPI_READ_MAX_BYTES/ATAPI_READ_BLOCK_SIZE /* max blocks */ ulong atapi_read (int device, ulong blknr, ulong blkcnt, ulong *buffer) { ulong n = 0; unsigned char ccb[12]; /* Command descriptor block */ ulong cnt; AT_PRINTF("atapi_read dev %d start %lX, blocks %lX buffer at %lX\n", device, blknr, blkcnt, (ulong)buffer); do { if (blkcnt>ATAPI_READ_MAX_BLOCK) { cnt=ATAPI_READ_MAX_BLOCK; } else { cnt=blkcnt; } ccb[0]=ATAPI_CMD_READ_12; ccb[1]=0; /* reserved */ ccb[2]=(unsigned char) (blknr>>24) & 0xFF; /* MSB Block */ ccb[3]=(unsigned char) (blknr>>16) & 0xFF; /* */ ccb[4]=(unsigned char) (blknr>> 8) & 0xFF; ccb[5]=(unsigned char) blknr & 0xFF; /* LSB Block */ ccb[6]=(unsigned char) (cnt >>24) & 0xFF; /* MSB Block count */ ccb[7]=(unsigned char) (cnt >>16) & 0xFF; ccb[8]=(unsigned char) (cnt >> 8) & 0xFF; ccb[9]=(unsigned char) cnt & 0xFF; /* LSB Block */ ccb[10]=0; /* reserved */ ccb[11]=0; /* reserved */ if (atapi_issue_autoreq(device,ccb,12, (unsigned char *)buffer, cnt*ATAPI_READ_BLOCK_SIZE) == 0xFF) { return (n); } n+=cnt; blkcnt-=cnt; blknr+=cnt; buffer+=cnt*(ATAPI_READ_BLOCK_SIZE/4); /* ulong blocksize in ulong */ } while (blkcnt > 0); return (n); } /* ------------------------------------------------------------------------- */ #endif /* CONFIG_ATAPI */ U_BOOT_CMD( ide, 5, 1, do_ide, "ide - IDE sub-system\n", "reset - reset IDE controller\n" "ide info - show available IDE devices\n" "ide device [dev] - show or set current device\n" "ide part [dev] - print partition table of one or all IDE devices\n" "ide read addr blk# cnt\n" "ide write addr blk# cnt - read/write `cnt'" " blocks starting at block `blk#'\n" " to/from memory address `addr'\n" ); U_BOOT_CMD( diskboot, 3, 1, do_diskboot, "diskboot- boot from IDE device\n", "loadAddr dev:part\n" ); #endif /* CONFIG_COMMANDS & CFG_CMD_IDE */