mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-05 02:51:00 +00:00
22a7ae3675
Use standard U-Boot types in the file to make the code less verbose. Signed-off-by: Simon Glass <sjg@chromium.org>
1086 lines
26 KiB
C
1086 lines
26 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2000-2011
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*/
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#define LOG_CATEGORY UCLASS_IDE
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#include <common.h>
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#include <ata.h>
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#include <blk.h>
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#include <bootdev.h>
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#include <dm.h>
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#include <ide.h>
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#include <log.h>
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#include <part.h>
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#include <watchdog.h>
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#include <asm/io.h>
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#include <linux/delay.h>
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#ifdef __PPC__
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# define EIEIO __asm__ volatile ("eieio")
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# define SYNC __asm__ volatile ("sync")
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#else
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# define EIEIO /* nothing */
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# define SYNC /* nothing */
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#endif
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/* Current offset for IDE0 / IDE1 bus access */
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ulong ide_bus_offset[CONFIG_SYS_IDE_MAXBUS] = {
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#if defined(CONFIG_SYS_ATA_IDE0_OFFSET)
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CONFIG_SYS_ATA_IDE0_OFFSET,
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#endif
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#if defined(CONFIG_SYS_ATA_IDE1_OFFSET) && (CONFIG_SYS_IDE_MAXBUS > 1)
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CONFIG_SYS_ATA_IDE1_OFFSET,
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#endif
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};
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#define ATA_CURR_BASE(dev) (CONFIG_SYS_ATA_BASE_ADDR + \
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ide_bus_offset[IDE_BUS(dev)])
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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 ide_reset(void)
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{
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if (IS_ENABLED(CONFIG_IDE_RESET)) {
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/* assert reset */
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ide_set_reset(1);
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/* the reset signal shall be asserted for et least 25 us */
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udelay(25);
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schedule();
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/* de-assert RESET signal */
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ide_set_reset(0);
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mdelay(250);
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}
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}
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static void ide_outb(int dev, int port, u8 val)
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{
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log_debug("(dev= %d, port= %#x, val= 0x%02x) : @ 0x%08lx\n",
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dev, port, val, ATA_CURR_BASE(dev) + port);
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outb(val, ATA_CURR_BASE(dev) + port);
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}
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static u8 ide_inb(int dev, int port)
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{
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uchar val;
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val = inb(ATA_CURR_BASE(dev) + port);
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log_debug("(dev= %d, port= %#x) : @ 0x%08lx -> 0x%02x\n",
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dev, port, ATA_CURR_BASE(dev) + port, val);
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return val;
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}
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static void ide_input_swap_data(int dev, ulong *sect_buf, int words)
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{
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uintptr_t paddr = (ATA_CURR_BASE(dev) + ATA_DATA_REG);
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ushort *dbuf = (ushort *)sect_buf;
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log_debug("in input swap data base for read is %p\n", (void *)paddr);
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while (words--) {
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EIEIO;
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*dbuf++ = be16_to_cpu(inw(paddr));
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EIEIO;
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*dbuf++ = be16_to_cpu(inw(paddr));
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}
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}
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/*
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* Wait until Busy bit is off, or timeout (in ms)
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* Return last status
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*/
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static uchar ide_wait(int dev, ulong t)
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{
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ulong delay = 10 * t; /* poll every 100 us */
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uchar c;
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while ((c = ide_inb(dev, ATA_STATUS)) & ATA_STAT_BUSY) {
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udelay(100);
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if (!delay--)
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break;
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}
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return c;
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}
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/*
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* copy src to dest, skipping leading and trailing blanks and null
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* terminate the string
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* "len" is the size of available memory including the terminating '\0'
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*/
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static void ident_cpy(u8 *dst, u8 *src, uint len)
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{
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u8 *end, *last;
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last = dst;
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end = src + len - 1;
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/* reserve space for '\0' */
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if (len < 2)
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goto OUT;
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/* skip leading white space */
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while ((*src) && (src < end) && (*src == ' '))
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++src;
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/* copy string, omitting trailing white space */
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while ((*src) && (src < end)) {
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*dst++ = *src;
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if (*src++ != ' ')
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last = dst;
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}
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OUT:
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*last = '\0';
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}
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/****************************************************************************
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* ATAPI Support
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*/
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/* since ATAPI may use commands with not 4 bytes alligned length
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* we have our own transfer functions, 2 bytes alligned */
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static void ide_output_data_shorts(int dev, ushort *sect_buf, int shorts)
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{
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uintptr_t paddr = ATA_CURR_BASE(dev) + ATA_DATA_REG;
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ushort *dbuf;
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dbuf = (ushort *)sect_buf;
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log_debug("in output data shorts base for read is %p\n", (void *)paddr);
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while (shorts--) {
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EIEIO;
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outw(cpu_to_le16(*dbuf++), paddr);
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}
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}
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static void ide_input_data_shorts(int dev, ushort *sect_buf, int shorts)
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{
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uintptr_t paddr = ATA_CURR_BASE(dev) + ATA_DATA_REG;
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ushort *dbuf;
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dbuf = (ushort *)sect_buf;
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log_debug("in input data shorts base for read is %p\n", (void *)paddr);
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while (shorts--) {
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EIEIO;
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*dbuf++ = le16_to_cpu(inw(paddr));
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}
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}
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/*
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* Wait until (Status & mask) == res, or timeout (in ms)
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* Return last status
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* This is used since some ATAPI CD ROMs clears their Busy Bit first
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* and then they set their DRQ Bit
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*/
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static uchar atapi_wait_mask(int dev, ulong t, uchar mask, uchar res)
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{
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ulong delay = 10 * t; /* poll every 100 us */
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uchar c;
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/* prevents to read the status before valid */
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c = ide_inb(dev, ATA_DEV_CTL);
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while (c = ide_inb(dev, ATA_STATUS) & mask, c != res) {
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/* break if error occurs (doesn't make sense to wait more) */
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if ((c & ATA_STAT_ERR) == ATA_STAT_ERR)
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break;
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udelay(100);
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if (!delay--)
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break;
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}
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return c;
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}
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/*
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* issue an atapi command
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*/
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static u8 atapi_issue(int device, u8 *ccb, int ccblen, u8 *buffer, int buflen)
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{
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u8 c, err, mask, res;
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int n;
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/* Select device
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*/
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mask = ATA_STAT_BUSY | ATA_STAT_DRQ;
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res = 0;
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ide_outb(device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device));
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c = atapi_wait_mask(device, ATAPI_TIME_OUT, mask, res);
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if ((c & mask) != res) {
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printf("ATAPI_ISSUE: device %d not ready status %x\n", device,
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c);
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err = 0xff;
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goto AI_OUT;
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}
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/* write taskfile */
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ide_outb(device, ATA_ERROR_REG, 0); /* no DMA, no overlaped */
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ide_outb(device, ATA_SECT_CNT, 0);
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ide_outb(device, ATA_SECT_NUM, 0);
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ide_outb(device, ATA_CYL_LOW, (u8)(buflen & 0xff));
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ide_outb(device, ATA_CYL_HIGH, (u8)((buflen >> 8) & 0xff));
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ide_outb(device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device));
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ide_outb(device, ATA_COMMAND, ATA_CMD_PACKET);
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udelay(50);
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mask = ATA_STAT_DRQ | ATA_STAT_BUSY | ATA_STAT_ERR;
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res = ATA_STAT_DRQ;
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c = atapi_wait_mask(device, ATAPI_TIME_OUT, mask, res);
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if ((c & mask) != res) { /* DRQ must be 1, BSY 0 */
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printf("ATAPI_ISSUE: Error (no IRQ) before sending ccb dev %d status %#02x\n",
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device, c);
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err = 0xff;
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goto AI_OUT;
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}
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/* write command block */
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ide_output_data_shorts(device, (ushort *)ccb, ccblen / 2);
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/* ATAPI Command written wait for completition */
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mdelay(5); /* device must set bsy */
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mask = ATA_STAT_DRQ | ATA_STAT_BUSY | ATA_STAT_ERR;
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/*
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* if no data wait for DRQ = 0 BSY = 0
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* if data wait for DRQ = 1 BSY = 0
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*/
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res = 0;
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if (buflen)
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res = ATA_STAT_DRQ;
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c = atapi_wait_mask(device, ATAPI_TIME_OUT, mask, res);
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if ((c & mask) != res) {
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if (c & ATA_STAT_ERR) {
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err = (ide_inb(device, ATA_ERROR_REG)) >> 4;
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log_debug("1 returned sense key %x status %02x\n",
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err, c);
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} else {
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printf("ATAPI_ISSUE: (no DRQ) after sending ccb (%x) status %#02x\n",
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ccb[0], c);
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err = 0xff;
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}
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goto AI_OUT;
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}
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n = ide_inb(device, ATA_CYL_HIGH);
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n <<= 8;
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n += ide_inb(device, ATA_CYL_LOW);
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if (n > buflen) {
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printf("ERROR, transfer bytes %d requested only %d\n", n,
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buflen);
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err = 0xff;
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goto AI_OUT;
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}
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if (!n && buflen < 0) {
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printf("ERROR, transfer bytes %d requested %d\n", n, buflen);
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err = 0xff;
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goto AI_OUT;
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}
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if (n != buflen) {
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log_debug("WARNING, transfer bytes %d not equal with requested %d\n",
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n, buflen);
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}
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if (n) { /* data transfer */
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log_debug("ATAPI_ISSUE: %d Bytes to transfer\n", n);
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/* we transfer shorts */
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n >>= 1;
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/* ok now decide if it is an in or output */
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if (!(ide_inb(device, ATA_SECT_CNT) & 0x02)) {
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log_debug("Write to device\n");
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ide_output_data_shorts(device, (ushort *)buffer, n);
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} else {
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log_debug("Read from device @ %p shorts %d\n", buffer,
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n);
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ide_input_data_shorts(device, (ushort *)buffer, n);
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}
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}
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mdelay(5); /* seems that some CD ROMs need this... */
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mask = ATA_STAT_BUSY | ATA_STAT_ERR;
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res = 0;
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c = atapi_wait_mask(device, ATAPI_TIME_OUT, mask, res);
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if ((c & ATA_STAT_ERR) == ATA_STAT_ERR) {
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err = (ide_inb(device, ATA_ERROR_REG) >> 4);
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log_debug("2 returned sense key %x status %x\n", err, c);
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} else {
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err = 0;
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}
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AI_OUT:
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return err;
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}
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/*
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* sending the command to atapi_issue. If an status other than good
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* returns, an request_sense will be issued
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*/
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#define ATAPI_DRIVE_NOT_READY 100
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#define ATAPI_UNIT_ATTN 10
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static u8 atapi_issue_autoreq(int device, u8 *ccb, int ccblen, u8 *buffer,
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int buflen)
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{
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u8 sense_data[18], sense_ccb[12];
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u8 res, key, asc, ascq;
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int notready, unitattn;
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unitattn = ATAPI_UNIT_ATTN;
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notready = ATAPI_DRIVE_NOT_READY;
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retry:
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res = atapi_issue(device, ccb, ccblen, buffer, buflen);
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if (!res)
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return 0; /* Ok */
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if (res == 0xff)
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return 0xff; /* error */
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log_debug("(auto_req)atapi_issue returned sense key %x\n", res);
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memset(sense_ccb, 0, sizeof(sense_ccb));
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memset(sense_data, 0, sizeof(sense_data));
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sense_ccb[0] = ATAPI_CMD_REQ_SENSE;
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sense_ccb[4] = 18; /* allocation Length */
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res = atapi_issue(device, sense_ccb, 12, sense_data, 18);
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key = (sense_data[2] & 0xf);
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asc = (sense_data[12]);
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ascq = (sense_data[13]);
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log_debug("ATAPI_CMD_REQ_SENSE returned %x\n", res);
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log_debug(" Sense page: %02X key %02X ASC %02X ASCQ %02X\n",
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sense_data[0], key, asc, ascq);
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if (!key)
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return 0; /* ok device ready */
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if (key == 6 || asc == 0x29 || asc == 0x28) { /* Unit Attention */
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if (unitattn-- > 0) {
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mdelay(200);
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goto retry;
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}
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printf("Unit Attention, tried %d\n", ATAPI_UNIT_ATTN);
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goto error;
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}
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if (asc == 0x4 && ascq == 0x1) {
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/* not ready, but will be ready soon */
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if (notready-- > 0) {
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mdelay(200);
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goto retry;
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}
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printf("Drive not ready, tried %d times\n",
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ATAPI_DRIVE_NOT_READY);
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goto error;
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}
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if (asc == 0x3a) {
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log_debug("Media not present\n");
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goto error;
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}
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printf("ERROR: Unknown Sense key %02X ASC %02X ASCQ %02X\n", key, asc,
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ascq);
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error:
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log_debug("ERROR Sense key %02X ASC %02X ASCQ %02X\n", key, asc, ascq);
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return 0xff;
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}
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/*
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* atapi_read:
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* we transfer only one block per command, since the multiple DRQ per
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* command is not yet implemented
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*/
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#define ATAPI_READ_MAX_BYTES 2048 /* we read max 2kbytes */
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#define ATAPI_READ_BLOCK_SIZE 2048 /* assuming CD part */
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#define ATAPI_READ_MAX_BLOCK (ATAPI_READ_MAX_BYTES/ATAPI_READ_BLOCK_SIZE)
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static ulong atapi_read(struct udevice *dev, lbaint_t blknr, lbaint_t blkcnt,
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void *buffer)
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{
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struct blk_desc *desc = dev_get_uclass_plat(dev);
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int device = desc->devnum;
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ulong n = 0;
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u8 ccb[12]; /* Command descriptor block */
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ulong cnt;
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log_debug("%d start " LBAF " blocks " LBAF " buffer at %lx\n", device,
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blknr, blkcnt, (ulong)buffer);
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do {
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if (blkcnt > ATAPI_READ_MAX_BLOCK)
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cnt = ATAPI_READ_MAX_BLOCK;
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else
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cnt = blkcnt;
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ccb[0] = ATAPI_CMD_READ_12;
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ccb[1] = 0; /* reserved */
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ccb[2] = (u8)(blknr >> 24) & 0xff; /* MSB Block */
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ccb[3] = (u8)(blknr >> 16) & 0xff; /* */
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ccb[4] = (u8)(blknr >> 8) & 0xff;
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ccb[5] = (u8)blknr & 0xff; /* LSB Block */
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ccb[6] = (u8)(cnt >> 24) & 0xff; /* MSB Block cnt */
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ccb[7] = (u8)(cnt >> 16) & 0xff;
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ccb[8] = (u8)(cnt >> 8) & 0xff;
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ccb[9] = (u8)cnt & 0xff; /* LSB Block */
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ccb[10] = 0; /* reserved */
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ccb[11] = 0; /* reserved */
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if (atapi_issue_autoreq(device, ccb, 12,
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(u8 *)buffer,
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cnt * ATAPI_READ_BLOCK_SIZE) == 0xff)
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return n;
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n += cnt;
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blkcnt -= cnt;
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blknr += cnt;
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buffer += cnt * ATAPI_READ_BLOCK_SIZE;
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} while (blkcnt > 0);
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return n;
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}
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static void atapi_inquiry(struct blk_desc *desc)
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{
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u8 ccb[12]; /* Command descriptor block */
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u8 iobuf[64]; /* temp buf */
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u8 c;
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int device;
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device = desc->devnum;
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desc->type = DEV_TYPE_UNKNOWN; /* not yet valid */
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memset(ccb, 0, sizeof(ccb));
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memset(iobuf, 0, sizeof(iobuf));
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ccb[0] = ATAPI_CMD_INQUIRY;
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ccb[4] = 40; /* allocation Legnth */
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c = atapi_issue_autoreq(device, ccb, 12, (u8 *)iobuf, 40);
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log_debug("ATAPI_CMD_INQUIRY returned %x\n", c);
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if (c)
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return;
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/* copy device ident strings */
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ident_cpy((u8 *)desc->vendor, &iobuf[8], 8);
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ident_cpy((u8 *)desc->product, &iobuf[16], 16);
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ident_cpy((u8 *)desc->revision, &iobuf[32], 5);
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desc->lun = 0;
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desc->lba = 0;
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desc->blksz = 0;
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desc->log2blksz = LOG2_INVALID(typeof(desc->log2blksz));
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desc->type = iobuf[0] & 0x1f;
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|
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if (iobuf[1] & 0x80)
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desc->removable = 1;
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else
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desc->removable = 0;
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memset(ccb, 0, sizeof(ccb));
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memset(iobuf, 0, sizeof(iobuf));
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ccb[0] = ATAPI_CMD_START_STOP;
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ccb[4] = 0x03; /* start */
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|
|
c = atapi_issue_autoreq(device, ccb, 12, (u8 *)iobuf, 0);
|
|
|
|
log_debug("ATAPI_CMD_START_STOP returned %x\n", c);
|
|
if (c)
|
|
return;
|
|
|
|
memset(ccb, 0, sizeof(ccb));
|
|
memset(iobuf, 0, sizeof(iobuf));
|
|
c = atapi_issue_autoreq(device, ccb, 12, (u8 *)iobuf, 0);
|
|
|
|
log_debug("ATAPI_CMD_UNIT_TEST_READY returned %x\n", c);
|
|
if (c)
|
|
return;
|
|
|
|
memset(ccb, 0, sizeof(ccb));
|
|
memset(iobuf, 0, sizeof(iobuf));
|
|
ccb[0] = ATAPI_CMD_READ_CAP;
|
|
c = atapi_issue_autoreq(device, ccb, 12, (u8 *)iobuf, 8);
|
|
log_debug("ATAPI_CMD_READ_CAP returned %x\n", c);
|
|
if (c)
|
|
return;
|
|
|
|
log_debug("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]);
|
|
|
|
desc->lba = (ulong)iobuf[0] << 24 | (ulong)iobuf[1] << 16 |
|
|
(ulong)iobuf[2] << 8 | (ulong)iobuf[3];
|
|
desc->blksz = (ulong)iobuf[4] << 24 | (ulong)iobuf[5] << 16 |
|
|
(ulong)iobuf[6] << 8 | (ulong)iobuf[7];
|
|
desc->log2blksz = LOG2(desc->blksz);
|
|
|
|
/* ATAPI devices cannot use 48bit addressing (ATA/ATAPI v7) */
|
|
desc->lba48 = false;
|
|
}
|
|
|
|
/**
|
|
* ide_ident() - Identify an IDE device
|
|
*
|
|
* @device: Device number to use
|
|
* @desc: Block descriptor to fill in
|
|
* Returns: 0 if OK, -ENOENT if no device is found
|
|
*/
|
|
static int ide_ident(int device, struct blk_desc *desc)
|
|
{
|
|
hd_driveid_t iop;
|
|
bool is_atapi = false;
|
|
int tries = 1;
|
|
u8 c;
|
|
|
|
memset(desc, '\0', sizeof(*desc));
|
|
desc->devnum = device;
|
|
desc->type = DEV_TYPE_UNKNOWN;
|
|
desc->uclass_id = UCLASS_IDE;
|
|
desc->log2blksz = LOG2_INVALID(typeof(desc->log2blksz));
|
|
printf(" Device %d: ", device);
|
|
|
|
/* Select device
|
|
*/
|
|
ide_outb(device, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(device));
|
|
if (IS_ENABLED(CONFIG_ATAPI))
|
|
tries = 2;
|
|
|
|
while (tries) {
|
|
/* check signature */
|
|
if (IS_ENABLED(CONFIG_ATAPI) &&
|
|
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 */
|
|
is_atapi = true;
|
|
/*
|
|
* Start Ident Command
|
|
*/
|
|
ide_outb(device, ATA_COMMAND, ATA_CMD_ID_ATAPI);
|
|
/*
|
|
* Wait for completion - ATAPI devices need more time
|
|
* to become ready
|
|
*/
|
|
c = ide_wait(device, ATAPI_TIME_OUT);
|
|
} else {
|
|
/*
|
|
* Start Ident Command
|
|
*/
|
|
ide_outb(device, ATA_COMMAND, ATA_CMD_ID_ATA);
|
|
|
|
/*
|
|
* Wait for completion
|
|
*/
|
|
c = ide_wait(device, IDE_TIME_OUT);
|
|
}
|
|
|
|
if ((c & ATA_STAT_DRQ) &&
|
|
!(c & (ATA_STAT_FAULT | ATA_STAT_ERR))) {
|
|
break;
|
|
} else if (IS_ENABLED(CONFIG_ATAPI)) {
|
|
/*
|
|
* Need to soft reset the device
|
|
* in case it's an ATAPI...
|
|
*/
|
|
log_debug("Retrying...\n");
|
|
ide_outb(device, ATA_DEV_HD,
|
|
ATA_LBA | ATA_DEVICE(device));
|
|
mdelay(100);
|
|
ide_outb(device, ATA_COMMAND, 0x08);
|
|
mdelay(500);
|
|
/* Select device */
|
|
ide_outb(device, ATA_DEV_HD,
|
|
ATA_LBA | ATA_DEVICE(device));
|
|
}
|
|
tries--;
|
|
}
|
|
|
|
if (!tries) /* Not found */
|
|
return -ENOENT;
|
|
|
|
ide_input_swap_data(device, (ulong *)&iop, ATA_SECTORWORDS);
|
|
|
|
ident_cpy((u8 *)desc->revision, iop.fw_rev, sizeof(desc->revision));
|
|
ident_cpy((u8 *)desc->vendor, iop.model, sizeof(desc->vendor));
|
|
ident_cpy((u8 *)desc->product, iop.serial_no, sizeof(desc->product));
|
|
|
|
if (iop.config & 0x0080)
|
|
desc->removable = 1;
|
|
else
|
|
desc->removable = 0;
|
|
|
|
if (IS_ENABLED(CONFIG_ATAPI) && is_atapi) {
|
|
desc->atapi = true;
|
|
atapi_inquiry(desc);
|
|
return 0;
|
|
}
|
|
|
|
iop.lba_capacity[0] = be16_to_cpu(iop.lba_capacity[0]);
|
|
iop.lba_capacity[1] = be16_to_cpu(iop.lba_capacity[1]);
|
|
desc->lba = (ulong)iop.lba_capacity[0] |
|
|
(ulong)iop.lba_capacity[1] << 16;
|
|
|
|
if (IS_ENABLED(CONFIG_LBA48) && (iop.command_set_2 & 0x0400)) {
|
|
/* LBA 48 support */
|
|
desc->lba48 = true;
|
|
for (int i = 0; i < 4; i++)
|
|
iop.lba48_capacity[i] = be16_to_cpu(iop.lba48_capacity[i]);
|
|
desc->lba = (unsigned long long)iop.lba48_capacity[0] |
|
|
(unsigned long long)iop.lba48_capacity[1] << 16 |
|
|
(unsigned long long)iop.lba48_capacity[2] << 32 |
|
|
(unsigned long long)iop.lba48_capacity[3] << 48;
|
|
} else {
|
|
desc->lba48 = false;
|
|
}
|
|
|
|
/* assuming HD */
|
|
desc->type = DEV_TYPE_HARDDISK;
|
|
desc->blksz = ATA_BLOCKSIZE;
|
|
desc->log2blksz = LOG2(desc->blksz);
|
|
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
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* ide_init_one() - Init one IDE device
|
|
*
|
|
* @bus: Bus to use
|
|
* Return: 0 iuf OK, -EIO if not available, -ETIMEDOUT if timed out
|
|
*/
|
|
static int ide_init_one(int bus)
|
|
{
|
|
int dev = bus * CONFIG_SYS_IDE_MAXDEVICE / CONFIG_SYS_IDE_MAXBUS;
|
|
int i;
|
|
u8 c;
|
|
|
|
printf("Bus %d: ", bus);
|
|
|
|
/* Select device */
|
|
mdelay(100);
|
|
ide_outb(dev, ATA_DEV_HD, ATA_LBA | ATA_DEVICE(dev));
|
|
mdelay(100);
|
|
i = 0;
|
|
do {
|
|
mdelay(10);
|
|
|
|
c = ide_inb(dev, ATA_STATUS);
|
|
i++;
|
|
if (i > (ATA_RESET_TIME * 100)) {
|
|
puts("** Timeout **\n");
|
|
return -ETIMEDOUT;
|
|
}
|
|
if (i >= 100 && !(i % 100))
|
|
putc('.');
|
|
} while (c & ATA_STAT_BUSY);
|
|
|
|
if (c & (ATA_STAT_BUSY | ATA_STAT_FAULT)) {
|
|
puts("not available ");
|
|
log_debug("Status = %#02X ", c);
|
|
return -EIO;
|
|
} else if (IS_ENABLED(CONFIG_ATAPI) && !(c & ATA_STAT_READY)) {
|
|
/* ATAPI Devices do not set DRDY */
|
|
puts("not available ");
|
|
log_debug("Status = %#02X ", c);
|
|
return -EIO;
|
|
}
|
|
puts("OK ");
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void ide_output_data(int dev, const ulong *sect_buf, int words)
|
|
{
|
|
uintptr_t paddr = (ATA_CURR_BASE(dev) + ATA_DATA_REG);
|
|
ushort *dbuf;
|
|
|
|
dbuf = (ushort *)sect_buf;
|
|
while (words--) {
|
|
EIEIO;
|
|
outw(cpu_to_le16(*dbuf++), paddr);
|
|
EIEIO;
|
|
outw(cpu_to_le16(*dbuf++), paddr);
|
|
}
|
|
}
|
|
|
|
static void ide_input_data(int dev, ulong *sect_buf, int words)
|
|
{
|
|
uintptr_t paddr = (ATA_CURR_BASE(dev) + ATA_DATA_REG);
|
|
ushort *dbuf;
|
|
|
|
dbuf = (ushort *)sect_buf;
|
|
|
|
log_debug("in input data base for read is %p\n", (void *)paddr);
|
|
|
|
while (words--) {
|
|
EIEIO;
|
|
*dbuf++ = le16_to_cpu(inw(paddr));
|
|
EIEIO;
|
|
*dbuf++ = le16_to_cpu(inw(paddr));
|
|
}
|
|
}
|
|
|
|
static ulong ide_read(struct udevice *dev, lbaint_t blknr, lbaint_t blkcnt,
|
|
void *buffer)
|
|
{
|
|
struct blk_desc *desc = dev_get_uclass_plat(dev);
|
|
int device = desc->devnum;
|
|
bool lba48 = false;
|
|
ulong n = 0;
|
|
u8 pwrsave = 0; /* power save */
|
|
u8 c;
|
|
|
|
if (IS_ENABLED(CONFIG_LBA48) && (blknr & 0x0000fffff0000000ULL)) {
|
|
/* more than 28 bits used, use 48bit mode */
|
|
lba48 = true;
|
|
}
|
|
|
|
log_debug("dev %d start " LBAF ", blocks " LBAF " buffer at %lx\n",
|
|
device, blknr, blkcnt, (ulong)buffer);
|
|
|
|
/* 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_POWER);
|
|
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);
|
|
log_debug("Powersaving %02X\n", c);
|
|
if (!c)
|
|
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;
|
|
}
|
|
if (IS_ENABLED(CONFIG_LBA48) && lba48) {
|
|
/* write high bits */
|
|
ide_outb(device, ATA_SECT_CNT, 0);
|
|
ide_outb(device, ATA_LBA_LOW, (blknr >> 24) & 0xff);
|
|
#ifdef CONFIG_SYS_64BIT_LBA
|
|
ide_outb(device, ATA_LBA_MID, (blknr >> 32) & 0xff);
|
|
ide_outb(device, ATA_LBA_HIGH, (blknr >> 40) & 0xff);
|
|
#else
|
|
ide_outb(device, ATA_LBA_MID, 0);
|
|
ide_outb(device, ATA_LBA_HIGH, 0);
|
|
#endif
|
|
}
|
|
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);
|
|
|
|
if (IS_ENABLED(CONFIG_LBA48) && lba48) {
|
|
ide_outb(device, ATA_DEV_HD,
|
|
ATA_LBA | ATA_DEVICE(device));
|
|
ide_outb(device, ATA_COMMAND, ATA_CMD_PIO_READ_EXT);
|
|
|
|
} else {
|
|
ide_outb(device, ATA_DEV_HD, ATA_LBA |
|
|
ATA_DEVICE(device) | ((blknr >> 24) & 0xf));
|
|
ide_outb(device, ATA_COMMAND, ATA_CMD_PIO_READ);
|
|
}
|
|
|
|
udelay(50);
|
|
|
|
if (pwrsave) {
|
|
/* may take up to 4 sec */
|
|
c = ide_wait(device, IDE_SPIN_UP_TIME_OUT);
|
|
pwrsave = 0;
|
|
} else {
|
|
/* can't take over 500 ms */
|
|
c = ide_wait(device, IDE_TIME_OUT);
|
|
}
|
|
|
|
if ((c & (ATA_STAT_DRQ | ATA_STAT_BUSY | ATA_STAT_ERR)) !=
|
|
ATA_STAT_DRQ) {
|
|
printf("Error (no IRQ) dev %d blk " LBAF
|
|
": status %#02x\n", device, blknr, c);
|
|
break;
|
|
}
|
|
|
|
ide_input_data(device, buffer, ATA_SECTORWORDS);
|
|
(void) ide_inb(device, ATA_STATUS); /* clear IRQ */
|
|
|
|
++n;
|
|
++blknr;
|
|
buffer += ATA_BLOCKSIZE;
|
|
}
|
|
IDE_READ_E:
|
|
return n;
|
|
}
|
|
|
|
static ulong ide_write(struct udevice *dev, lbaint_t blknr, lbaint_t blkcnt,
|
|
const void *buffer)
|
|
{
|
|
struct blk_desc *desc = dev_get_uclass_plat(dev);
|
|
int device = desc->devnum;
|
|
ulong n = 0;
|
|
bool lba48 = false;
|
|
u8 c;
|
|
|
|
if (IS_ENABLED(CONFIG_LBA48) && (blknr & 0x0000fffff0000000ULL)) {
|
|
/* more than 28 bits used, use 48bit mode */
|
|
lba48 = true;
|
|
}
|
|
|
|
/* 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;
|
|
}
|
|
if (IS_ENABLED(CONFIG_LBA48) && lba48) {
|
|
/* write high bits */
|
|
ide_outb(device, ATA_SECT_CNT, 0);
|
|
ide_outb(device, ATA_LBA_LOW, (blknr >> 24) & 0xff);
|
|
#ifdef CONFIG_SYS_64BIT_LBA
|
|
ide_outb(device, ATA_LBA_MID, (blknr >> 32) & 0xff);
|
|
ide_outb(device, ATA_LBA_HIGH, (blknr >> 40) & 0xff);
|
|
#else
|
|
ide_outb(device, ATA_LBA_MID, 0);
|
|
ide_outb(device, ATA_LBA_HIGH, 0);
|
|
#endif
|
|
}
|
|
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);
|
|
|
|
if (IS_ENABLED(CONFIG_LBA48) && lba48) {
|
|
ide_outb(device, ATA_DEV_HD,
|
|
ATA_LBA | ATA_DEVICE(device));
|
|
ide_outb(device, ATA_COMMAND, ATA_CMD_PIO_WRITE_EXT);
|
|
|
|
} else {
|
|
ide_outb(device, ATA_DEV_HD, ATA_LBA |
|
|
ATA_DEVICE(device) | ((blknr >> 24) & 0xf));
|
|
ide_outb(device, ATA_COMMAND, ATA_CMD_PIO_WRITE);
|
|
}
|
|
|
|
udelay(50);
|
|
|
|
/* can't take over 500 ms */
|
|
c = ide_wait(device, IDE_TIME_OUT);
|
|
|
|
if ((c & (ATA_STAT_DRQ | ATA_STAT_BUSY | ATA_STAT_ERR)) !=
|
|
ATA_STAT_DRQ) {
|
|
printf("Error (no IRQ) dev %d blk " LBAF
|
|
": status %#02x\n", device, blknr, c);
|
|
goto WR_OUT;
|
|
}
|
|
|
|
ide_output_data(device, buffer, ATA_SECTORWORDS);
|
|
c = ide_inb(device, ATA_STATUS); /* clear IRQ */
|
|
++n;
|
|
++blknr;
|
|
buffer += ATA_BLOCKSIZE;
|
|
}
|
|
WR_OUT:
|
|
return n;
|
|
}
|
|
|
|
ulong ide_or_atapi_read(struct udevice *dev, lbaint_t blknr, lbaint_t blkcnt,
|
|
void *buffer)
|
|
{
|
|
struct blk_desc *desc = dev_get_uclass_plat(dev);
|
|
|
|
if (IS_ENABLED(CONFIG_ATAPI) && desc->atapi)
|
|
return atapi_read(dev, blknr, blkcnt, buffer);
|
|
|
|
return ide_read(dev, blknr, blkcnt, buffer);
|
|
}
|
|
|
|
static const struct blk_ops ide_blk_ops = {
|
|
.read = ide_or_atapi_read,
|
|
.write = ide_write,
|
|
};
|
|
|
|
U_BOOT_DRIVER(ide_blk) = {
|
|
.name = "ide_blk",
|
|
.id = UCLASS_BLK,
|
|
.ops = &ide_blk_ops,
|
|
};
|
|
|
|
static int ide_bootdev_bind(struct udevice *dev)
|
|
{
|
|
struct bootdev_uc_plat *ucp = dev_get_uclass_plat(dev);
|
|
|
|
ucp->prio = BOOTDEVP_5_SCAN_SLOW;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ide_bootdev_hunt(struct bootdev_hunter *info, bool show)
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|
{
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struct udevice *dev;
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|
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uclass_first_device(UCLASS_IDE, &dev);
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|
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return 0;
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}
|
|
|
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struct bootdev_ops ide_bootdev_ops = {
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};
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|
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static const struct udevice_id ide_bootdev_ids[] = {
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{ .compatible = "u-boot,bootdev-ide" },
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{ }
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|
};
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|
|
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U_BOOT_DRIVER(ide_bootdev) = {
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|
.name = "ide_bootdev",
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|
.id = UCLASS_BOOTDEV,
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.ops = &ide_bootdev_ops,
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.bind = ide_bootdev_bind,
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|
.of_match = ide_bootdev_ids,
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|
};
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|
|
|
BOOTDEV_HUNTER(ide_bootdev_hunter) = {
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.prio = BOOTDEVP_5_SCAN_SLOW,
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.uclass = UCLASS_IDE,
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|
.hunt = ide_bootdev_hunt,
|
|
.drv = DM_DRIVER_REF(ide_bootdev),
|
|
};
|
|
|
|
static int ide_probe(struct udevice *udev)
|
|
{
|
|
bool bus_ok[CONFIG_SYS_IDE_MAXBUS];
|
|
int i, bus;
|
|
|
|
schedule();
|
|
|
|
/* ATAPI Drives seems to need a proper IDE Reset */
|
|
ide_reset();
|
|
|
|
/*
|
|
* Wait for IDE to get ready.
|
|
* According to spec, this can take up to 31 seconds!
|
|
*/
|
|
for (bus = 0; bus < CONFIG_SYS_IDE_MAXBUS; ++bus) {
|
|
bus_ok[bus] = !ide_init_one(bus);
|
|
schedule();
|
|
}
|
|
|
|
putc('\n');
|
|
|
|
schedule();
|
|
|
|
for (i = 0; i < CONFIG_SYS_IDE_MAXDEVICE; i++) {
|
|
struct blk_desc *desc, pdesc;
|
|
struct udevice *blk;
|
|
char name[20];
|
|
int ret;
|
|
|
|
if (!bus_ok[IDE_BUS(i)])
|
|
continue;
|
|
|
|
ret = ide_ident(i, &pdesc);
|
|
dev_print(&pdesc);
|
|
|
|
if (ret)
|
|
continue;
|
|
|
|
sprintf(name, "blk#%d", i);
|
|
|
|
/*
|
|
* With CDROM, if there is no CD inserted, blksz will
|
|
* be zero, don't bother to create IDE block device.
|
|
*/
|
|
if (!pdesc.blksz)
|
|
continue;
|
|
ret = blk_create_devicef(udev, "ide_blk", name, UCLASS_IDE, i,
|
|
pdesc.blksz, pdesc.lba, &blk);
|
|
if (ret)
|
|
return ret;
|
|
|
|
ret = blk_probe_or_unbind(blk);
|
|
if (ret)
|
|
return ret;
|
|
|
|
/* fill in device vendor/product/rev strings */
|
|
desc = dev_get_uclass_plat(blk);
|
|
strlcpy(desc->vendor, pdesc.vendor, BLK_VEN_SIZE);
|
|
strlcpy(desc->product, pdesc.product, BLK_PRD_SIZE);
|
|
strlcpy(desc->revision, pdesc.revision, BLK_REV_SIZE);
|
|
desc->removable = pdesc.removable;
|
|
desc->atapi = pdesc.atapi;
|
|
desc->lba48 = pdesc.lba48;
|
|
desc->type = pdesc.type;
|
|
|
|
ret = bootdev_setup_for_dev(udev, "ide_bootdev");
|
|
if (ret)
|
|
return log_msg_ret("bootdev", ret);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
U_BOOT_DRIVER(ide) = {
|
|
.name = "ide",
|
|
.id = UCLASS_IDE,
|
|
.probe = ide_probe,
|
|
};
|
|
|
|
struct pci_device_id ide_supported[] = {
|
|
{ PCI_DEVICE_CLASS(PCI_CLASS_STORAGE_IDE << 8, 0xffff00) },
|
|
{ }
|
|
};
|
|
|
|
U_BOOT_PCI_DEVICE(ide, ide_supported);
|
|
|
|
UCLASS_DRIVER(ide) = {
|
|
.name = "ide",
|
|
.id = UCLASS_IDE,
|
|
};
|