diff options
Diffstat (limited to 'resources/libreboot/patch/kgpe-d16/0068-southbridge-amd-sb700-Recover-if-AHCI-disk-detection.patch')
| -rw-r--r-- | resources/libreboot/patch/kgpe-d16/0068-southbridge-amd-sb700-Recover-if-AHCI-disk-detection.patch | 161 |
1 files changed, 0 insertions, 161 deletions
diff --git a/resources/libreboot/patch/kgpe-d16/0068-southbridge-amd-sb700-Recover-if-AHCI-disk-detection.patch b/resources/libreboot/patch/kgpe-d16/0068-southbridge-amd-sb700-Recover-if-AHCI-disk-detection.patch deleted file mode 100644 index dbc48be..0000000 --- a/resources/libreboot/patch/kgpe-d16/0068-southbridge-amd-sb700-Recover-if-AHCI-disk-detection.patch +++ /dev/null @@ -1,161 +0,0 @@ -From 2c28e8112799a9ec7b72478c0593664dbeab4757 Mon Sep 17 00:00:00 2001 -From: Timothy Pearson <kb9vqf@pearsoncomputing.net> -Date: Mon, 22 Jun 2015 02:21:29 -0500 -Subject: [PATCH 068/146] southbridge/amd/sb700: Recover if AHCI disk - detection fails - ---- - src/southbridge/amd/sb700/sata.c | 83 ++++++++++++++++++++++++++++++++++---- - 1 file changed, 75 insertions(+), 8 deletions(-) - -diff --git a/src/southbridge/amd/sb700/sata.c b/src/southbridge/amd/sb700/sata.c -index 9f610a4..f27ec49 100644 ---- a/src/southbridge/amd/sb700/sata.c -+++ b/src/southbridge/amd/sb700/sata.c -@@ -31,12 +31,15 @@ - static int sata_drive_detect(int portnum, uint16_t iobar) - { - u8 byte, byte2; -+ u8 byte_prev, byte2_prev; - int i = 0; -+ byte_prev = byte2_prev = 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 != byte_prev) || (byte2 != byte2_prev)) -+ 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 -@@ -45,11 +48,22 @@ static int sata_drive_detect(int portnum, uint16_t iobar) - 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"); -+ } else { -+ if (i == 0) -+ printk(BIOS_SPEW, "drive detection not yet completed, " -+ "waiting...\n"); -+ } - mdelay(10); - i++; -+ byte_prev = byte; -+ byte2_prev = byte2; -+ -+ /* Detect stuck SATA controller and attempt reset */ -+ if (i > 1024) { -+ printk(BIOS_DEBUG, "drive detection not done after %i ms, " -+ "resetting HBA and retrying init\n", i * 10); -+ return 2; -+ } - } - printk(BIOS_SPEW, "drive detection done after %i ms\n", i * 10); - return 0; -@@ -105,12 +119,13 @@ static void sata_init(struct device *dev) - uint16_t sata_bar0, sata_bar1, sata_bar2, sata_bar3, sata_bar4; - uint16_t ide_bar0, ide_bar1, ide_bar2, ide_bar3; - uint16_t current_bar; -- int i, j; -+ int i, j, ret; - uint8_t nvram; - uint8_t sata_ahci_mode; - uint8_t sata_alpm_enable; - uint8_t port_count; - uint8_t max_port_count; -+ uint8_t hba_reset_count; - - sata_ahci_mode = 0; - if (get_option(&nvram, "sata_ahci_mode") == CB_SUCCESS) -@@ -124,14 +139,23 @@ static void sata_init(struct device *dev) - /* SATA SMBus Disable */ - sm_dev = dev_find_slot(0, PCI_DEVFN(0x14, 0)); - -+ hba_reset_count = 0; -+ -+retry_init: - byte = pci_read_config8(sm_dev, 0xad); - /* Disable SATA SMBUS */ -- byte |= (1 << 0); -- /* Enable SATA and power saving */ - byte |= (1 << 1); -+ /* Enable SATA and power saving */ -+ byte |= (1 << 0); - byte |= (1 << 5); - pci_write_config8(sm_dev, 0xad, byte); - -+ /* Take the PHY logic out of reset */ -+ word = pci_read_config16(dev, 0x84); -+ word |= 0x1 << 2; -+ word &= ~0x1f8; -+ pci_write_config16(dev, 0x84, word); -+ - /* get rev_id */ - rev_id = pci_read_config8(sm_dev, 0x08) - 0x28; - -@@ -324,6 +348,26 @@ static void sata_init(struct device *dev) - if (port_count > max_port_count) - port_count = max_port_count; - -+ /* Send COMRESET to all ports */ -+ for (i = 0; i < port_count; i++) { -+ /* Read in Port-N Serial ATA Control Register */ -+ byte = read8(sata_bar5 + 0x12C + 0x80 * i); -+ -+ /* Set Reset Bit */ -+ byte |= 0x1; -+ 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); -+ } -+ - /* RPR7.7 SATA drive detection. */ - /* Use BAR5+0x128,BAR0 for Primary Slave */ - /* Use BAR5+0x1A8,BAR0 for Primary Slave */ -@@ -369,8 +413,31 @@ static void sata_init(struct device *dev) - current_bar = ((i / 2) == 0) ? sata_bar0 : sata_bar2; - else - current_bar = ide_bar0; -- if (!sata_drive_detect(i, current_bar)) -+ ret = sata_drive_detect(i, current_bar); -+ if (ret == 0) { - break; -+ } else if (ret == 2) { -+ /* Reset PHY logic */ -+ word = pci_read_config16(dev, 0x84); -+ word &= ~(0x1 << 2); -+ word |= 0x1f8; -+ pci_write_config16(dev, 0x84, word); -+ -+ /* Disable SATA controller */ -+ byte = pci_read_config8(sm_dev, 0xad); -+ byte &= ~(0x1); -+ pci_write_config8(sm_dev, 0xad, byte); -+ -+ mdelay(100); -+ -+ /* Retry initialization */ -+ hba_reset_count++; -+ if (hba_reset_count < 16) -+ goto retry_init; -+ else -+ printk(BIOS_WARNING, "HBA reset count exceeded, " -+ "continuing but AHCI drives may not function\n"); -+ } - } - if (sata_ahci_mode) - printk(BIOS_DEBUG, "AHCI device %d is %sready after %i tries\n", --- -1.7.9.5 - |