132ba5fdc5
add IDE support for MPC5200 * Patch by Masami Komiya, 26 Feb 2004: add autoload via NFS * Patch by Stephen Williams Use of CONFIG_SERIAL_SOFTWARE_FIFO in board.c consistent with uses elsewhere in the source.
1939 lines
47 KiB
C
1939 lines
47 KiB
C
/*
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* (C) Copyright 2000-2002
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*
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*/
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/*
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* IDE support
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*/
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#include <common.h>
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#include <config.h>
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#include <watchdog.h>
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#include <command.h>
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#include <image.h>
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#include <asm/byteorder.h>
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#if defined(CONFIG_IDE_8xx_DIRECT) || defined(CONFIG_IDE_PCMCIA)
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# include <pcmcia.h>
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#endif
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#ifdef CONFIG_8xx
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# include <mpc8xx.h>
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#endif
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#ifdef CONFIG_MPC5xxx
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#include <mpc5xxx.h>
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#endif
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#include <ide.h>
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#include <ata.h>
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#ifdef CONFIG_STATUS_LED
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# include <status_led.h>
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#endif
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#ifndef __PPC__
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#include <asm/io.h>
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#ifdef __MIPS__
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/* Macros depend on this variable */
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static unsigned long mips_io_port_base = 0;
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#endif
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#endif
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#ifdef CONFIG_SHOW_BOOT_PROGRESS
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# include <status_led.h>
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# define SHOW_BOOT_PROGRESS(arg) show_boot_progress(arg)
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#else
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# define SHOW_BOOT_PROGRESS(arg)
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#endif
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#undef IDE_DEBUG
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#ifdef IDE_DEBUG
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#define PRINTF(fmt,args...) printf (fmt ,##args)
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#else
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#define PRINTF(fmt,args...)
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#endif
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#if (CONFIG_COMMANDS & CFG_CMD_IDE)
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#ifdef CONFIG_IDE_8xx_DIRECT
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/* Timings for IDE Interface
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*
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* SETUP / LENGTH / HOLD - cycles valid for 50 MHz clk
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* 70 165 30 PIO-Mode 0, [ns]
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* 4 9 2 [Cycles]
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* 50 125 20 PIO-Mode 1, [ns]
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* 3 7 2 [Cycles]
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* 30 100 15 PIO-Mode 2, [ns]
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* 2 6 1 [Cycles]
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* 30 80 10 PIO-Mode 3, [ns]
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* 2 5 1 [Cycles]
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* 25 70 10 PIO-Mode 4, [ns]
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* 2 4 1 [Cycles]
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*/
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const static pio_config_t pio_config_ns [IDE_MAX_PIO_MODE+1] =
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{
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/* Setup Length Hold */
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{ 70, 165, 30 }, /* PIO-Mode 0, [ns] */
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{ 50, 125, 20 }, /* PIO-Mode 1, [ns] */
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{ 30, 101, 15 }, /* PIO-Mode 2, [ns] */
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{ 30, 80, 10 }, /* PIO-Mode 3, [ns] */
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{ 25, 70, 10 }, /* PIO-Mode 4, [ns] */
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};
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static pio_config_t pio_config_clk [IDE_MAX_PIO_MODE+1];
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#ifndef CFG_PIO_MODE
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#define CFG_PIO_MODE 0 /* use a relaxed default */
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#endif
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static int pio_mode = CFG_PIO_MODE;
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/* Make clock cycles and always round up */
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#define PCMCIA_MK_CLKS( t, T ) (( (t) * (T) + 999U ) / 1000U )
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#endif /* CONFIG_IDE_8xx_DIRECT */
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/* ------------------------------------------------------------------------- */
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/* Current I/O Device */
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static int curr_device = -1;
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/* Current offset for IDE0 / IDE1 bus access */
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ulong ide_bus_offset[CFG_IDE_MAXBUS] = {
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#if defined(CFG_ATA_IDE0_OFFSET)
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CFG_ATA_IDE0_OFFSET,
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#endif
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#if defined(CFG_ATA_IDE1_OFFSET) && (CFG_IDE_MAXBUS > 1)
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CFG_ATA_IDE1_OFFSET,
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#endif
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};
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#define ATA_CURR_BASE(dev) (CFG_ATA_BASE_ADDR+ide_bus_offset[IDE_BUS(dev)])
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#ifndef CONFIG_AMIGAONEG3SE
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static int ide_bus_ok[CFG_IDE_MAXBUS];
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#else
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static int ide_bus_ok[CFG_IDE_MAXBUS] = {0,};
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#endif
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static block_dev_desc_t ide_dev_desc[CFG_IDE_MAXDEVICE];
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/* ------------------------------------------------------------------------- */
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#ifdef CONFIG_IDE_LED
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#if !defined(CONFIG_KUP4K) && !defined(CONFIG_BMS2003)
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static void ide_led (uchar led, uchar status);
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#else
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extern void ide_led (uchar led, uchar status);
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#endif
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#else
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#ifndef CONFIG_AMIGAONEG3SE
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#define ide_led(a,b) /* dummy */
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#else
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extern void ide_led(uchar led, uchar status);
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#define LED_IDE1 1
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#define LED_IDE2 2
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#define CONFIG_IDE_LED 1
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#define DEVICE_LED(x) 1
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#endif
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#endif
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#ifdef CONFIG_IDE_RESET
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static void ide_reset (void);
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#else
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#define ide_reset() /* dummy */
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#endif
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static void ide_ident (block_dev_desc_t *dev_desc);
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static uchar ide_wait (int dev, ulong t);
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#define IDE_TIME_OUT 2000 /* 2 sec timeout */
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#define ATAPI_TIME_OUT 7000 /* 7 sec timeout (5 sec seems to work...) */
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#define IDE_SPIN_UP_TIME_OUT 5000 /* 5 sec spin-up timeout */
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static void __inline__ ide_outb(int dev, int port, unsigned char val);
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static unsigned char __inline__ ide_inb(int dev, int port);
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static void input_data(int dev, ulong *sect_buf, int words);
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static void output_data(int dev, ulong *sect_buf, int words);
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static void ident_cpy (unsigned char *dest, unsigned char *src, unsigned int len);
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#ifdef CONFIG_ATAPI
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static void atapi_inquiry(block_dev_desc_t *dev_desc);
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ulong atapi_read (int device, ulong blknr, ulong blkcnt, ulong *buffer);
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#endif
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#ifdef CONFIG_IDE_8xx_DIRECT
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static void set_pcmcia_timing (int pmode);
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#endif
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/* ------------------------------------------------------------------------- */
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int do_ide (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
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{
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int rcode = 0;
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switch (argc) {
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case 0:
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case 1:
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printf ("Usage:\n%s\n", cmdtp->usage);
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return 1;
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case 2:
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if (strncmp(argv[1],"res",3) == 0) {
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puts ("\nReset IDE"
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#ifdef CONFIG_IDE_8xx_DIRECT
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" on PCMCIA " PCMCIA_SLOT_MSG
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#endif
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": ");
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ide_init ();
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return 0;
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} else if (strncmp(argv[1],"inf",3) == 0) {
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int i;
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putc ('\n');
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for (i=0; i<CFG_IDE_MAXDEVICE; ++i) {
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if (ide_dev_desc[i].type==DEV_TYPE_UNKNOWN)
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continue; /* list only known devices */
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printf ("IDE device %d: ", i);
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dev_print(&ide_dev_desc[i]);
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}
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return 0;
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} else if (strncmp(argv[1],"dev",3) == 0) {
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if ((curr_device < 0) || (curr_device >= CFG_IDE_MAXDEVICE)) {
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puts ("\nno IDE devices available\n");
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return 1;
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}
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printf ("\nIDE device %d: ", curr_device);
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dev_print(&ide_dev_desc[curr_device]);
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return 0;
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} else if (strncmp(argv[1],"part",4) == 0) {
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int dev, ok;
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for (ok=0, dev=0; dev<CFG_IDE_MAXDEVICE; ++dev) {
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if (ide_dev_desc[dev].part_type!=PART_TYPE_UNKNOWN) {
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++ok;
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if (dev)
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putc ('\n');
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print_part(&ide_dev_desc[dev]);
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}
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}
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if (!ok) {
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puts ("\nno IDE devices available\n");
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rcode ++;
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}
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return rcode;
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}
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printf ("Usage:\n%s\n", cmdtp->usage);
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return 1;
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case 3:
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if (strncmp(argv[1],"dev",3) == 0) {
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int dev = (int)simple_strtoul(argv[2], NULL, 10);
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printf ("\nIDE device %d: ", dev);
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if (dev >= CFG_IDE_MAXDEVICE) {
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puts ("unknown device\n");
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return 1;
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}
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dev_print(&ide_dev_desc[dev]);
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/*ide_print (dev);*/
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if (ide_dev_desc[dev].type == DEV_TYPE_UNKNOWN) {
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return 1;
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}
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curr_device = dev;
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puts ("... is now current device\n");
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return 0;
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} else if (strncmp(argv[1],"part",4) == 0) {
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int dev = (int)simple_strtoul(argv[2], NULL, 10);
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if (ide_dev_desc[dev].part_type!=PART_TYPE_UNKNOWN) {
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print_part(&ide_dev_desc[dev]);
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} else {
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printf ("\nIDE device %d not available\n", dev);
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rcode = 1;
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}
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return rcode;
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#if 0
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} else if (strncmp(argv[1],"pio",4) == 0) {
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int mode = (int)simple_strtoul(argv[2], NULL, 10);
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if ((mode >= 0) && (mode <= IDE_MAX_PIO_MODE)) {
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puts ("\nSetting ");
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pio_mode = mode;
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ide_init ();
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} else {
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printf ("\nInvalid PIO mode %d (0 ... %d only)\n",
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mode, IDE_MAX_PIO_MODE);
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}
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return;
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#endif
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}
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printf ("Usage:\n%s\n", cmdtp->usage);
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return 1;
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default:
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/* at least 4 args */
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if (strcmp(argv[1],"read") == 0) {
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ulong addr = simple_strtoul(argv[2], NULL, 16);
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ulong blk = simple_strtoul(argv[3], NULL, 16);
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ulong cnt = simple_strtoul(argv[4], NULL, 16);
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ulong n;
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printf ("\nIDE read: device %d block # %ld, count %ld ... ",
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curr_device, blk, cnt);
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n = ide_dev_desc[curr_device].block_read (curr_device,
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blk, cnt,
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(ulong *)addr);
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/* flush cache after read */
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flush_cache (addr, cnt*ide_dev_desc[curr_device].blksz);
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printf ("%ld blocks read: %s\n",
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n, (n==cnt) ? "OK" : "ERROR");
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if (n==cnt) {
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return 0;
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} else {
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return 1;
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}
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} else if (strcmp(argv[1],"write") == 0) {
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ulong addr = simple_strtoul(argv[2], NULL, 16);
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ulong blk = simple_strtoul(argv[3], NULL, 16);
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ulong cnt = simple_strtoul(argv[4], NULL, 16);
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ulong n;
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printf ("\nIDE write: device %d block # %ld, count %ld ... ",
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curr_device, blk, cnt);
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n = ide_write (curr_device, blk, cnt, (ulong *)addr);
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printf ("%ld blocks written: %s\n",
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n, (n==cnt) ? "OK" : "ERROR");
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if (n==cnt) {
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return 0;
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} else {
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return 1;
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}
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} else {
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printf ("Usage:\n%s\n", cmdtp->usage);
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rcode = 1;
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}
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return rcode;
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}
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}
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int do_diskboot (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
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{
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char *boot_device = NULL;
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char *ep;
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int dev, part = 0;
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ulong cnt;
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ulong addr;
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disk_partition_t info;
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image_header_t *hdr;
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int rcode = 0;
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switch (argc) {
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case 1:
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addr = CFG_LOAD_ADDR;
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boot_device = getenv ("bootdevice");
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break;
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case 2:
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addr = simple_strtoul(argv[1], NULL, 16);
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boot_device = getenv ("bootdevice");
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break;
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case 3:
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addr = simple_strtoul(argv[1], NULL, 16);
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boot_device = argv[2];
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break;
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default:
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printf ("Usage:\n%s\n", cmdtp->usage);
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SHOW_BOOT_PROGRESS (-1);
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return 1;
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}
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if (!boot_device) {
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puts ("\n** No boot device **\n");
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SHOW_BOOT_PROGRESS (-1);
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return 1;
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}
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dev = simple_strtoul(boot_device, &ep, 16);
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if (ide_dev_desc[dev].type==DEV_TYPE_UNKNOWN) {
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printf ("\n** Device %d not available\n", dev);
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SHOW_BOOT_PROGRESS (-1);
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return 1;
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}
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if (*ep) {
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if (*ep != ':') {
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puts ("\n** Invalid boot device, use `dev[:part]' **\n");
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SHOW_BOOT_PROGRESS (-1);
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return 1;
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}
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part = simple_strtoul(++ep, NULL, 16);
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}
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if (get_partition_info (&ide_dev_desc[dev], part, &info)) {
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SHOW_BOOT_PROGRESS (-1);
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return 1;
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}
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if ((strncmp(info.type, BOOT_PART_TYPE, sizeof(info.type)) != 0) &&
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(strncmp(info.type, BOOT_PART_COMP, sizeof(info.type)) != 0)) {
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printf ("\n** Invalid partition type \"%.32s\""
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" (expect \"" BOOT_PART_TYPE "\")\n",
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info.type);
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SHOW_BOOT_PROGRESS (-1);
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return 1;
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}
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printf ("\nLoading from IDE device %d, partition %d: "
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"Name: %.32s Type: %.32s\n",
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dev, part, info.name, info.type);
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PRINTF ("First Block: %ld, # of blocks: %ld, Block Size: %ld\n",
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info.start, info.size, info.blksz);
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if (ide_dev_desc[dev].block_read (dev, info.start, 1, (ulong *)addr) != 1) {
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printf ("** Read error on %d:%d\n", dev, part);
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SHOW_BOOT_PROGRESS (-1);
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return 1;
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}
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hdr = (image_header_t *)addr;
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if (ntohl(hdr->ih_magic) == IH_MAGIC) {
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print_image_hdr (hdr);
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cnt = (ntohl(hdr->ih_size) + sizeof(image_header_t));
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cnt += info.blksz - 1;
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cnt /= info.blksz;
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cnt -= 1;
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} else {
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printf("\n** Bad Magic Number **\n");
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SHOW_BOOT_PROGRESS (-1);
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return 1;
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}
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if (ide_dev_desc[dev].block_read (dev, info.start+1, cnt,
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(ulong *)(addr+info.blksz)) != cnt) {
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printf ("** Read error on %d:%d\n", dev, part);
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SHOW_BOOT_PROGRESS (-1);
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return 1;
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}
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/* Loading ok, update default load address */
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load_addr = addr;
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/* Check if we should attempt an auto-start */
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if (((ep = getenv("autostart")) != NULL) && (strcmp(ep,"yes") == 0)) {
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char *local_args[2];
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extern int do_bootm (cmd_tbl_t *, int, int, char *[]);
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local_args[0] = argv[0];
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local_args[1] = NULL;
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printf ("Automatic boot of image at addr 0x%08lX ...\n", addr);
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do_bootm (cmdtp, 0, 1, local_args);
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rcode = 1;
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}
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return rcode;
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}
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/* ------------------------------------------------------------------------- */
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void ide_init (void)
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{
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#ifdef CONFIG_IDE_8xx_DIRECT
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DECLARE_GLOBAL_DATA_PTR;
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volatile immap_t *immr = (immap_t *)CFG_IMMR;
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volatile pcmconf8xx_t *pcmp = &(immr->im_pcmcia);
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#endif
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unsigned char c;
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int i, bus;
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#ifdef CONFIG_AMIGAONEG3SE
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unsigned int max_bus_scan;
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unsigned int ata_reset_time;
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char *s;
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#endif
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#ifdef CONFIG_IDE_8xx_PCCARD
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extern int pcmcia_on (void);
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extern int ide_devices_found; /* Initialized in check_ide_device() */
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#endif /* CONFIG_IDE_8xx_PCCARD */
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#ifdef CONFIG_IDE_PREINIT
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WATCHDOG_RESET();
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if (ide_preinit ()) {
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puts ("ide_preinit failed\n");
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return;
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}
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#endif /* CONFIG_IDE_PREINIT */
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#ifdef CONFIG_IDE_8xx_PCCARD
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extern int pcmcia_on (void);
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extern int ide_devices_found; /* Initialized in check_ide_device() */
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WATCHDOG_RESET();
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ide_devices_found = 0;
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/* initialize the PCMCIA IDE adapter card */
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pcmcia_on();
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if (!ide_devices_found)
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return;
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udelay (1000000); /* 1 s */
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#endif /* CONFIG_IDE_8xx_PCCARD */
|
|
|
|
WATCHDOG_RESET();
|
|
|
|
#ifdef CONFIG_IDE_8xx_DIRECT
|
|
/* 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);
|
|
}
|
|
#endif /* CONFIG_IDE_8xx_DIRECT */
|
|
|
|
/* 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;
|
|
|
|
/* start in PIO mode 0 - most relaxed timings */
|
|
pio_mode = 0;
|
|
set_pcmcia_timing (pio_mode);
|
|
#endif /* CONFIG_IDE_8xx_DIRECT */
|
|
|
|
/*
|
|
* Wait for IDE to get ready.
|
|
* According to spec, this can take up to 31 seconds!
|
|
*/
|
|
#ifndef CONFIG_AMIGAONEG3SE
|
|
for (bus=0; bus<CFG_IDE_MAXBUS; ++bus) {
|
|
int dev = bus * (CFG_IDE_MAXDEVICE / CFG_IDE_MAXBUS);
|
|
#else
|
|
s = getenv("ide_maxbus");
|
|
if (s)
|
|
max_bus_scan = simple_strtol(s, NULL, 10);
|
|
else
|
|
max_bus_scan = CFG_IDE_MAXBUS;
|
|
|
|
for (bus=0; bus<max_bus_scan; ++bus) {
|
|
int dev = bus * (CFG_IDE_MAXDEVICE / max_bus_scan);
|
|
#endif
|
|
|
|
#ifdef CONFIG_IDE_8xx_PCCARD
|
|
/* Skip non-ide devices from probing */
|
|
if ((ide_devices_found & (1 << bus)) == 0) {
|
|
ide_led ((LED_IDE1 | LED_IDE2), 0); /* LED's off */
|
|
continue;
|
|
}
|
|
#endif
|
|
printf ("Bus %d: ", bus);
|
|
|
|
ide_bus_ok[bus] = 0;
|
|
|
|
/* Select device
|
|
*/
|
|
udelay (100000); /* 100 ms */
|
|
ide_outb (dev, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(dev));
|
|
udelay (100000); /* 100 ms */
|
|
#ifdef CONFIG_AMIGAONEG3SE
|
|
ata_reset_time = ATA_RESET_TIME;
|
|
s = getenv("ide_reset_timeout");
|
|
if (s) ata_reset_time = 2*simple_strtol(s, NULL, 10);
|
|
#endif
|
|
i = 0;
|
|
do {
|
|
udelay (10000); /* 10 ms */
|
|
|
|
c = ide_inb (dev, ATA_STATUS);
|
|
i++;
|
|
#ifdef CONFIG_AMIGAONEG3SE
|
|
if (i > (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<CFG_IDE_MAXDEVICE; ++i) {
|
|
#ifdef CONFIG_IDE_LED
|
|
int led = (IDE_BUS(i) == 0) ? LED_IDE1 : LED_IDE2;
|
|
#endif
|
|
ide_dev_desc[i].type=DEV_TYPE_UNKNOWN;
|
|
ide_dev_desc[i].if_type=IF_TYPE_IDE;
|
|
ide_dev_desc[i].dev=i;
|
|
ide_dev_desc[i].part_type=PART_TYPE_UNKNOWN;
|
|
ide_dev_desc[i].blksz=0;
|
|
ide_dev_desc[i].lba=0;
|
|
ide_dev_desc[i].block_read=ide_read;
|
|
if (!ide_bus_ok[IDE_BUS(i)])
|
|
continue;
|
|
ide_led (led, 1); /* LED on */
|
|
ide_ident(&ide_dev_desc[i]);
|
|
ide_led (led, 0); /* LED off */
|
|
dev_print(&ide_dev_desc[i]);
|
|
/* ide_print (i); */
|
|
if ((ide_dev_desc[i].lba > 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)
|
|
{
|
|
PRINTF ("ide_outb (dev= %d, port= %d, val= 0x%02x) : @ 0x%08lx\n",
|
|
dev, port, val, (ATA_CURR_BASE(dev)+port));
|
|
|
|
/* Ensure I/O operations complete */
|
|
__asm__ volatile("eieio");
|
|
*((uchar *)(ATA_CURR_BASE(dev)+port)) = val;
|
|
}
|
|
#else /* ! __PPC__ */
|
|
static void __inline__
|
|
ide_outb(int dev, int port, unsigned char val)
|
|
{
|
|
outb(val, ATA_CURR_BASE(dev)+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));
|
|
PRINTF ("ide_inb (dev= %d, port= %d) : @ 0x%08lx -> 0x%02x\n",
|
|
dev, port, (ATA_CURR_BASE(dev)+port), val);
|
|
return (val);
|
|
}
|
|
#else /* ! __PPC__ */
|
|
static unsigned char __inline__
|
|
ide_inb(int dev, int port)
|
|
{
|
|
return inb(ATA_CURR_BASE(dev)+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 */
|
|
#endif /* __PPC_ */
|
|
|
|
/* We only need to swap data if we are running on a big endian cpu. */
|
|
/* But Au1x00 cpu:s already swaps data in big endian mode! */
|
|
#if defined(__LITTLE_ENDIAN) || defined(CONFIG_AU1X00)
|
|
#define input_swap_data(x,y,z) input_data(x,y,z)
|
|
#else
|
|
static void
|
|
input_swap_data(int dev, ulong *sect_buf, int words)
|
|
{
|
|
#ifndef CONFIG_BMS2003
|
|
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 /* CONFIG_BMS2003 */
|
|
uchar i;
|
|
volatile uchar *pbuf_even = (uchar *)(ATA_CURR_BASE(dev)+ATA_DATA_EVEN);
|
|
volatile uchar *pbuf_odd = (uchar *)(ATA_CURR_BASE(dev)+ATA_DATA_ODD);
|
|
ushort *dbuf = (ushort *)sect_buf;
|
|
|
|
while (words--) {
|
|
for (i=0; i<2; i++) {
|
|
*(((uchar *)(dbuf)) + 1) = *pbuf_even;
|
|
*(uchar *)dbuf = *pbuf_odd;
|
|
dbuf+=1;
|
|
}
|
|
}
|
|
#endif /* CONFIG_BMS2003 */
|
|
}
|
|
#endif /* __LITTLE_ENDIAN || CONFIG_AU1X00 */
|
|
|
|
|
|
#ifdef __PPC__
|
|
static void
|
|
output_data(int dev, ulong *sect_buf, int words)
|
|
{
|
|
#ifndef CONFIG_BMS2003
|
|
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 /* CONFIG_BMS2003 */
|
|
uchar *dbuf;
|
|
volatile uchar *pbuf_even;
|
|
volatile uchar *pbuf_odd;
|
|
|
|
pbuf_even = (uchar *)(ATA_CURR_BASE(dev)+ATA_DATA_EVEN);
|
|
pbuf_odd = (uchar *)(ATA_CURR_BASE(dev)+ATA_DATA_ODD);
|
|
dbuf = (uchar *)sect_buf;
|
|
while (words--) {
|
|
__asm__ volatile ("eieio");
|
|
*pbuf_even = *dbuf++;
|
|
__asm__ volatile ("eieio");
|
|
*pbuf_odd = *dbuf++;
|
|
__asm__ volatile ("eieio");
|
|
*pbuf_even = *dbuf++;
|
|
__asm__ volatile ("eieio");
|
|
*pbuf_odd = *dbuf++;
|
|
}
|
|
#endif /* CONFIG_BMS2003 */
|
|
}
|
|
#else /* ! __PPC__ */
|
|
static void
|
|
output_data(int dev, ulong *sect_buf, int words)
|
|
{
|
|
outsw(ATA_CURR_BASE(dev)+ATA_DATA_REG, sect_buf, words<<1);
|
|
}
|
|
#endif /* __PPC__ */
|
|
|
|
#ifdef __PPC__
|
|
static void
|
|
input_data(int dev, ulong *sect_buf, int words)
|
|
{
|
|
#ifndef CONFIG_BMS2003
|
|
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 /* CONFIG_BMS2003 */
|
|
uchar *dbuf;
|
|
volatile uchar *pbuf_even;
|
|
volatile uchar *pbuf_odd;
|
|
|
|
pbuf_even = (uchar *)(ATA_CURR_BASE(dev)+ATA_DATA_EVEN);
|
|
pbuf_odd = (uchar *)(ATA_CURR_BASE(dev)+ATA_DATA_ODD);
|
|
dbuf = (uchar *)sect_buf;
|
|
while (words--) {
|
|
__asm__ volatile ("eieio");
|
|
*dbuf++ = *pbuf_even;
|
|
__asm__ volatile ("eieio");
|
|
*dbuf++ = *pbuf_odd;
|
|
__asm__ volatile ("eieio");
|
|
*dbuf++ = *pbuf_even;
|
|
__asm__ volatile ("eieio");
|
|
*dbuf++ = *pbuf_odd;
|
|
}
|
|
#endif /* CONFIG_BMS2003 */
|
|
}
|
|
#else /* ! __PPC__ */
|
|
static void
|
|
input_data(int dev, ulong *sect_buf, int words)
|
|
{
|
|
insw(ATA_CURR_BASE(dev)+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 {
|
|
return;
|
|
}
|
|
#else
|
|
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 (start<len) {
|
|
if (src[start]!=' ')
|
|
break;
|
|
start++;
|
|
}
|
|
end=len-1;
|
|
while (end>start) {
|
|
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; i<CFG_IDE_MAXBUS; ++i)
|
|
ide_bus_ok[i] = 0;
|
|
for (i=0; i<CFG_IDE_MAXDEVICE; ++i)
|
|
ide_dev_desc[i].type = DEV_TYPE_UNKNOWN;
|
|
|
|
ide_set_reset (1); /* assert reset */
|
|
|
|
WATCHDOG_RESET();
|
|
|
|
#ifdef CFG_PB_12V_ENABLE
|
|
immr->im_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) && !defined(CONFIG_BMS2003)
|
|
|
|
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)
|
|
{
|
|
#ifndef CONFIG_BMS2003
|
|
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++;
|
|
}
|
|
#else /* CONFIG_BMS2003 */
|
|
uchar *dbuf;
|
|
volatile uchar *pbuf_even;
|
|
volatile uchar *pbuf_odd;
|
|
|
|
pbuf_even = (uchar *)(ATA_CURR_BASE(dev)+ATA_DATA_EVEN);
|
|
pbuf_odd = (uchar *)(ATA_CURR_BASE(dev)+ATA_DATA_ODD);
|
|
while (shorts--) {
|
|
__asm__ volatile ("eieio");
|
|
*pbuf_even = *dbuf++;
|
|
__asm__ volatile ("eieio");
|
|
*pbuf_odd = *dbuf++;
|
|
}
|
|
#endif /* CONFIG_BMS2003 */
|
|
}
|
|
|
|
static void
|
|
input_data_shorts(int dev, ushort *sect_buf, int shorts)
|
|
{
|
|
#ifndef CONFIG_BMS2003
|
|
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 /* CONFIG_BMS2003 */
|
|
uchar *dbuf;
|
|
volatile uchar *pbuf_even;
|
|
volatile uchar *pbuf_odd;
|
|
|
|
pbuf_even = (uchar *)(ATA_CURR_BASE(dev)+ATA_DATA_EVEN);
|
|
pbuf_odd = (uchar *)(ATA_CURR_BASE(dev)+ATA_DATA_ODD);
|
|
while (shorts--) {
|
|
__asm__ volatile ("eieio");
|
|
*dbuf++ = *pbuf_even;
|
|
__asm__ volatile ("eieio");
|
|
*dbuf++ = *pbuf_odd;
|
|
}
|
|
#endif /* CONFIG_BMS2003 */
|
|
}
|
|
|
|
#else /* ! __PPC__ */
|
|
static void
|
|
output_data_shorts(int dev, ushort *sect_buf, int shorts)
|
|
{
|
|
outsw(ATA_CURR_BASE(dev)+ATA_DATA_REG, sect_buf, shorts);
|
|
}
|
|
|
|
|
|
static void
|
|
input_data_shorts(int dev, ushort *sect_buf, int shorts)
|
|
{
|
|
insw(ATA_CURR_BASE(dev)+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 */
|