diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/southbridge/amd/sb600/sb600_sata.c | 86 |
1 files changed, 60 insertions, 26 deletions
diff --git a/src/southbridge/amd/sb600/sb600_sata.c b/src/southbridge/amd/sb600/sb600_sata.c index 5b3c500bd9..970af07512 100644 --- a/src/southbridge/amd/sb600/sb600_sata.c +++ b/src/southbridge/amd/sb600/sb600_sata.c @@ -2,6 +2,7 @@ * This file is part of the coreboot project. * * Copyright (C) 2008 Advanced Micro Devices, Inc. + * Copyright (C) 2008 Carl-Daniel Hailfinger * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -26,6 +27,33 @@ #include <arch/io.h> #include "sb600.h" +int sata_drive_detect(int portnum, u16 iobar) +{ + u8 byte, byte2; + int i = 0; + outb(0xA0 + 0x10 * (portnum % 2), iobar + 0x6); + while (byte = inb(iobar + 0x6), byte2 = inb(iobar + 0x7), + (byte != (0xA0 + 0x10 * (portnum % 2))) || + ((byte2 & 0x88) != 0)) { + printk_spew("0x6=%x, 0x7=%x\n", byte, byte2); + if (byte != (0xA0 + 0x10 * (portnum % 2))) { + /* This will happen at the first iteration of this loop + * if the first SATA port is unpopulated and the + * second SATA port is poulated. + */ + printk_debug("drive no longer selected after %i ms, " + "retrying init\n", i * 10); + return 1; + } else + printk_spew("drive detection not yet completed, " + "waiting...\n"); + mdelay(10); + i++; + } + printk_spew("drive detection done after %i ms\n", i * 10); + return 0; +} + static void sata_init(struct device *dev) { u8 byte; @@ -33,6 +61,7 @@ static void sata_init(struct device *dev) u32 dword; u8 *sata_bar5; u16 sata_bar0, sata_bar1, sata_bar2, sata_bar3, sata_bar4; + int i, j; struct southbridge_ati_sb600_config *conf; conf = dev->chip_info; @@ -62,12 +91,12 @@ static void sata_init(struct device *dev) sata_bar3 = pci_read_config16(dev, 0x1C) & ~0x7; sata_bar4 = pci_read_config16(dev, 0x20) & ~0x7; - /* printk_debug("sata_bar0=%x\n", sata_bar0); */ /* 3030 */ - /* printk_debug("sata_bar1=%x\n", sata_bar1); */ /* 3070 */ - /* printk_debug("sata_bar2=%x\n", sata_bar2); */ /* 3040 */ - /* printk_debug("sata_bar3=%x\n", sata_bar3); */ /* 3080 */ - /* printk_debug("sata_bar4=%x\n", sata_bar4); */ /* 3000 */ - /* printk_debug("sata_bar5=%x\n", sata_bar5); */ /* e0309000 */ + printk_spew("sata_bar0=%x\n", sata_bar0); /* 3030 */ + printk_spew("sata_bar1=%x\n", sata_bar1); /* 3070 */ + printk_spew("sata_bar2=%x\n", sata_bar2); /* 3040 */ + printk_spew("sata_bar3=%x\n", sata_bar3); /* 3080 */ + printk_spew("sata_bar4=%x\n", sata_bar4); /* 3000 */ + printk_spew("sata_bar5=%x\n", sata_bar5); /* e0309000 */ /* Program the 2C to 0x43801002 */ dword = 0x43801002; @@ -131,31 +160,36 @@ static void sata_init(struct device *dev) dword |= 1 << 25; pci_write_config32(dev, 0x40, dword); - /* Enable the I/O ,MM ,BusMaster access for SATA */ + /* Enable the I/O, MM, BusMaster access for SATA */ byte = pci_read_config8(dev, 0x4); byte |= 7 << 0; pci_write_config8(dev, 0x4, byte); - /* RPR6.6 SATA drive detection. Currently we detect Primary Master Device only */ - /* Use BAR5+0x1A8,BAR0+0x6 for Primary Slave */ - /* Use BAR5+0x228,BAR0+0x6 for Secondary Master */ - /* Use BAR5+0x2A8,BAR0+0x6 for Secondary Slave */ - - byte = readb(sata_bar5 + 0x128); - /* printk_debug("byte=%x\n", byte); */ - byte &= 0xF; - if (byte == 0x3) { - outb(0xA0, sata_bar0 + 0x6); - while ((inb(sata_bar0 + 0x6) != 0xA0) - || ((inb(sata_bar0 + 0x7) & 0x88) != 0)) { - mdelay(10); - /* printk_debug("0x6=%x,0x7=%x\n", inb(sata_bar0 + 0x6), - inb(sata_bar0 + 0x7)); */ - printk_debug("drive detection fail,trying...\n"); + /* RPR6.6 SATA drive detection. */ + /* Use BAR5+0x128,BAR0 for Primary Slave */ + /* Use BAR5+0x1A8,BAR0 for Primary Slave */ + /* Use BAR5+0x228,BAR2 for Secondary Master */ + /* Use BAR5+0x2A8,BAR2 for Secondary Slave */ + + for (i = 0; i < 4; i++) { + byte = readb(sata_bar5 + 0x128 + 0x80 * i); + printk_spew("SATA port %i status = %x\n", i, byte); + byte &= 0xF; + if (byte == 0x3) { + for (j = 0; j < 10; j++) { + if (!sata_drive_detect(i, ((i / 2) == 0) ? sata_bar0 : sata_bar2)) + break; + } + printk_debug("%s %s device is %sready after %i tries\n", + (i / 2) ? "Secondary" : "Primary", + (i % 2 ) ? "Slave" : "Master", + (j == 10) ? "not " : "", + (j == 10) ? j : j + 1); + } else { + printk_debug("No %s %s SATA drive on Slot%i\n", + (i / 2) ? "Secondary" : "Primary", + (i % 2 ) ? "Slave" : "Master", i); } - printk_debug("Primary master device is ready\n"); - } else { - printk_debug("No Primary master SATA drive on Slot0\n"); } /* Below is CIM InitSataLateFar */ |