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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2010 Advanced Micro Devices, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <console/console.h>
#include <device/device.h>
#include <delay.h>
#include <device/pci.h>
#include <device/pci_ids.h>
#include <device/pci_ops.h>
#include <arch/io.h>
#include "sb800.h"
static 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(BIOS_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 populated.
*/
printk(BIOS_DEBUG, "drive no longer selected after %i ms, "
"retrying init\n", i * 10);
return 1;
} else
printk(BIOS_SPEW, "drive detection not yet completed, "
"waiting...\n");
mdelay(10);
i++;
}
printk(BIOS_SPEW, "drive detection done after %i ms\n", i * 10);
return 0;
}
static void sb800_setup_sata_phys(struct device *dev)
{
int i;
static const u32 sata_phy[][3] = {
{0x0056A607, 0x00061400, 0x00061302}, /* port 0 */
{0x0056A607, 0x00061400, 0x00061302}, /* port 1 */
{0x0056A607, 0x00061402, 0x00064300}, /* port 2 */
{0x0056A607, 0x00061402, 0x00064300}, /* port 3 */
{0x0056A700, 0x00061502, 0x00064302}, /* port 4 */
{0x0056A700, 0x00061502, 0x00064302} /* port 5 */
};
/* RPR8.4 */
/* Port 0 - 5 */
for (i = 0; i < 6; i++) {
pci_write_config16(dev, 0x84, 0x3006 | i << 9);
pci_write_config32(dev, 0x94, sata_phy[i][0]); /* Gen 3 */
pci_write_config16(dev, 0x84, 0x2006 | i << 9);
pci_write_config32(dev, 0x94, sata_phy[i][1]); /* Gen 2 */
pci_write_config16(dev, 0x84, 0x1006 | i << 9);
pci_write_config32(dev, 0x94, sata_phy[i][2]); /* Gen 1 */
}
}
static void sata_init(struct device *dev)
{
u8 byte;
u16 word;
u32 dword;
u8 rev_id;
void *sata_bar5;
u16 sata_bar0, sata_bar1, sata_bar2, sata_bar3, sata_bar4;
int i, j;
struct southbridge_ati_sb800_config *conf;
conf = dev->chip_info;
struct device *sm_dev;
/* SATA SMBus Disable */
/* sm_dev = pci_locate_device(PCI_ID(0x1002, 0x4385), 0); */
sm_dev = dev_find_slot(0, PCI_DEVFN(0x14, 0));
/* get rev_id */
rev_id = pci_read_config8(sm_dev, 0x08) - 0x2F;
/* get base address */
sata_bar5 = (void *)(pci_read_config32(dev, 0x24) & ~0x3FF);
sata_bar0 = pci_read_config16(dev, 0x10) & ~0x7;
sata_bar1 = pci_read_config16(dev, 0x14) & ~0x3;
sata_bar2 = pci_read_config16(dev, 0x18) & ~0x7;
sata_bar3 = pci_read_config16(dev, 0x1C) & ~0x3;
sata_bar4 = pci_read_config16(dev, 0x20) & ~0xf;
printk(BIOS_SPEW, "sata_bar0=%x\n", sata_bar0); /* 3030 */
printk(BIOS_SPEW, "sata_bar1=%x\n", sata_bar1); /* 3070 */
printk(BIOS_SPEW, "sata_bar2=%x\n", sata_bar2); /* 3040 */
printk(BIOS_SPEW, "sata_bar3=%x\n", sata_bar3); /* 3080 */
printk(BIOS_SPEW, "sata_bar4=%x\n", sata_bar4); /* 3000 */
printk(BIOS_SPEW, "sata_bar5=%p\n", sata_bar5); /* e0309000 */
/* SERR-Enable */
word = pci_read_config16(dev, 0x04);
word |= (1 << 8);
pci_write_config16(dev, 0x04, word);
/* Set SATA Operation Mode, Set to IDE mode */
byte = pci_read_config8(dev, 0x40);
byte |= (1 << 0);
//byte |= (1 << 4);
pci_write_config8(dev, 0x40, byte);
dword = 0x01018f00;
pci_write_config32(dev, 0x8, dword);
/* Program the 2C to 0x43801002 */
dword = 0x43801002;
pci_write_config32(dev, 0x2c, dword);
pci_write_config8(dev, 0x34, 0x70); /* 8.11 SATA MSI and D3 Power State Capability */
dword = read32(sata_bar5 + 0xFC);
dword &= ~(1 << 11); /* rpr 8.8. Disabling Aggressive Link Power Management */
dword &= ~(1 << 12); /* rpr 8.9.1 Disabling Port Multiplier support. */
dword &= ~(1 << 10); /* rpr 8.9.2 disabling FIS-based Switching support */
dword &= ~(1 << 19); /* rpr 8.10. Disabling CCC (Command Completion Coalescing) Support */
write32((sata_bar5 + 0xFC), dword);
dword = read32(sata_bar5 + 0xF8);
dword &= ~(0x3F << 22); /* rpr 8.9.2 disabling FIS-based Switching support */
write32(sata_bar5 + 0xF8, dword);
byte = pci_read_config8(dev, 0x40);
byte &= ~(1 << 0);
pci_write_config8(dev, 0x40, byte);
/* rpr 8.3 */
printk(BIOS_SPEW, "rev_id=%x\n", rev_id);
dword = pci_read_config32(dev, 0x84);
if (rev_id == 0x11) /* A11 */
dword |= 1 << 22;
pci_write_config32(dev, 0x84, dword);
/* rpr8.12 Program the watchdog counter to 0x20 */
byte = pci_read_config8(dev, 0x44);
byte |= 1 << 0;
pci_write_config8(dev, 0x44, byte);
pci_write_config8(dev, 0x46, 0x20);
sb800_setup_sata_phys(dev);
/* Enable the I/O, MM, BusMaster access for SATA */
byte = pci_read_config8(dev, 0x4);
byte |= 7 << 0;
pci_write_config8(dev, 0x4, byte);
/* RPR7.7 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 */
/* Use BAR5+0x328,PATA_BAR0/2 for Primary/Secondary master emulation */
/* Use BAR5+0x3A8,PATA_BAR0/2 for Primary/Secondary Slave emulation */
/* TODO: port 4,5, which are PATA emulations. What are PATA_BARs? */
for (i = 0; i < 4; i++) {
byte = read8(sata_bar5 + 0x128 + 0x80 * i);
printk(BIOS_SPEW, "SATA port %i status = %x\n", i, byte);
byte &= 0xF;
if (byte == 0x1) {
/* If the drive status is 0x1 then we see it but we aren't talking to it. */
/* Try to do something about it. */
printk(BIOS_SPEW, "SATA device detected but not talking. Trying lower speed.\n");
/* Read in Port-N Serial ATA Control Register */
byte = read8(sata_bar5 + 0x12C + 0x80 * i);
/* Set Reset Bit and 1.5g bit */
byte |= 0x11;
write8((sata_bar5 + 0x12C + 0x80 * i), byte);
/* Wait 1ms */
mdelay(1);
/* Clear Reset Bit */
byte &= ~0x01;
write8((sata_bar5 + 0x12C + 0x80 * i), byte);
/* Wait 1ms */
mdelay(1);
/* Reread status */
byte = read8(sata_bar5 + 0x128 + 0x80 * i);
printk(BIOS_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(BIOS_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(BIOS_DEBUG, "No %s %s SATA drive on Slot%i\n",
(i / 2) ? "Secondary" : "Primary",
(i % 2) ? "Slave" : "Master", i);
}
}
/* Below is CIM InitSataLateFar */
/* Enable interrupts from the HBA */
byte = read8(sata_bar5 + 0x4);
byte |= 1 << 1;
write8((sata_bar5 + 0x4), byte);
/* Clear error status */
write32((sata_bar5 + 0x130), 0xFFFFFFFF);
write32((sata_bar5 + 0x1b0), 0xFFFFFFFF);
write32((sata_bar5 + 0x230), 0xFFFFFFFF);
write32((sata_bar5 + 0x2b0), 0xFFFFFFFF);
write32((sata_bar5 + 0x330), 0xFFFFFFFF);
write32((sata_bar5 + 0x3b0), 0xFFFFFFFF);
/* Clear SATA status,Firstly we get the AcpiGpe0BlkAddr */
/* ????? why CIM does not set the AcpiGpe0BlkAddr, but use it??? */
/* word = 0x0000; */
/* word = pm_ioread(0x28); */
/* byte = pm_ioread(0x29); */
/* word |= byte<<8; */
/* printk(BIOS_DEBUG, "AcpiGpe0Blk addr = %x\n", word); */
/* write32(word, 0x80000000); */
}
static struct pci_operations lops_pci = {
/* .set_subsystem = pci_dev_set_subsystem, */
};
static struct device_operations sata_ops = {
.read_resources = pci_dev_read_resources,
.set_resources = pci_dev_set_resources,
.enable_resources = pci_dev_enable_resources,
.init = sata_init,
.scan_bus = 0,
.ops_pci = &lops_pci,
};
static const struct pci_driver sata0_driver __pci_driver = {
.ops = &sata_ops,
.vendor = PCI_VENDOR_ID_ATI,
.device = PCI_DEVICE_ID_ATI_SB800_SATA,
};
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