diff options
Diffstat (limited to 'src/southbridge/amd/sb700')
| -rw-r--r-- | src/southbridge/amd/sb700/bootblock.c | 37 | ||||
| -rw-r--r-- | src/southbridge/amd/sb700/early_setup.c | 10 | ||||
| -rw-r--r-- | src/southbridge/amd/sb700/lpc.c | 3 | ||||
| -rw-r--r-- | src/southbridge/amd/sb700/sm.c | 14 |
4 files changed, 56 insertions, 8 deletions
diff --git a/src/southbridge/amd/sb700/bootblock.c b/src/southbridge/amd/sb700/bootblock.c index 67e6434de1..fb6f0888f8 100644 --- a/src/southbridge/amd/sb700/bootblock.c +++ b/src/southbridge/amd/sb700/bootblock.c @@ -1,6 +1,7 @@ /* * This file is part of the coreboot project. * + * Copyright (C) 2015 Timothy Pearson <tpearson@raptorengineeringinc.com>, Raptor Engineering * Copyright (C) 2010 Advanced Micro Devices, Inc. * * This program is free software; you can redistribute it and/or modify @@ -21,6 +22,9 @@ #include <arch/io.h> #include <device/pci_ids.h> +#define IO_MEM_PORT_DECODE_ENABLE_5 0x48 +#define IO_MEM_PORT_DECODE_ENABLE_6 0x4a + /* * Enable 4MB (LPC) ROM access at 0xFFC00000 - 0xFFFFFFFF. * @@ -35,14 +39,21 @@ static void sb700_enable_rom(void) { u8 reg8; + u32 dword; pci_devfn_t dev; dev = PCI_DEV(0, 0x14, 3); + /* The LPC settings below work for SPI flash as well; + * the hardware does not distinguish between LPC and SPI flash ROM + * aside from offering additional side-channel access to SPI flash + * via a separate register-based interface. + */ + /* Decode variable LPC ROM address ranges 1 and 2. */ - reg8 = pci_io_read_config8(dev, 0x48); + reg8 = pci_io_read_config8(dev, IO_MEM_PORT_DECODE_ENABLE_5); reg8 |= (1 << 3) | (1 << 4); - pci_io_write_config8(dev, 0x48, reg8); + pci_io_write_config8(dev, IO_MEM_PORT_DECODE_ENABLE_5, reg8); /* LPC ROM address range 1: */ /* Enable LPC ROM range mirroring start at 0x000e(0000). */ @@ -57,10 +68,32 @@ static void sb700_enable_rom(void) * 0xfff0(0000): 1MB * 0xffe0(0000): 2MB * 0xffc0(0000): 4MB + * 0xff80(0000): 8MB */ pci_io_write_config16(dev, 0x6c, 0x10000 - (CONFIG_COREBOOT_ROMSIZE_KB >> 6)); /* Enable LPC ROM range end at 0xffff(ffff). */ pci_io_write_config16(dev, 0x6e, 0xffff); + + /* SB700 LPC Bridge 0x48. + * Turn on all LPC IO Port decode enables + */ + pci_io_write_config32(dev, 0x44, 0xffffffff); + + /* SB700 LPC Bridge 0x48. + * BIT0: Port Enable for SuperIO 0x2E-0x2F + * BIT1: Port Enable for SuperIO 0x4E-0x4F + * BIT6: Port Enable for RTC IO 0x70-0x73 + */ + reg8 = pci_io_read_config8(dev, IO_MEM_PORT_DECODE_ENABLE_5); + reg8 |= (1 << 0) | (1 << 1) | (1 << 6); + pci_io_write_config8(dev, IO_MEM_PORT_DECODE_ENABLE_5, reg8); + + /* SB700 LPC Bridge 0x4a. + * BIT5: Port Enable for Port 0x80 + */ + reg8 = pci_io_read_config8(dev, IO_MEM_PORT_DECODE_ENABLE_6); + reg8 |= (1 << 5); + pci_io_write_config8(dev, IO_MEM_PORT_DECODE_ENABLE_6, reg8); } static void bootblock_southbridge_init(void) diff --git a/src/southbridge/amd/sb700/early_setup.c b/src/southbridge/amd/sb700/early_setup.c index 2828bbed51..8ab97adce1 100644 --- a/src/southbridge/amd/sb700/early_setup.c +++ b/src/southbridge/amd/sb700/early_setup.c @@ -2,6 +2,7 @@ * This file is part of the coreboot project. * * Copyright (C) 2010 Advanced Micro Devices, Inc. + * Copyright (C) 2015 Timothy Pearson <tpearson@raptorengineeringinc.com>, Raptor Engineering * * 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 @@ -395,6 +396,15 @@ static void sb700_devices_por_init(void) byte |= (1 << 0); pci_write_config8(dev, 0xd2, byte); + /* set auxiliary smbus iobase and enable controller */ + pci_write_config32(dev, 0x58, SMBUS_AUX_IO_BASE | 1); + + if (inb(SMBUS_IO_BASE) == 0xff) + printk(BIOS_INFO, "%s: Primary SMBUS controller I/O not found\n", __func__); + + if (inb(SMBUS_AUX_IO_BASE) == 0xff) + printk(BIOS_INFO, "%s: Secondary SMBUS controller I/O not found\n", __func__); + /* KB2RstEnable */ pci_write_config8(dev, 0x40, 0x44); diff --git a/src/southbridge/amd/sb700/lpc.c b/src/southbridge/amd/sb700/lpc.c index a39ec1849e..0cc1e8bd3c 100644 --- a/src/southbridge/amd/sb700/lpc.c +++ b/src/southbridge/amd/sb700/lpc.c @@ -2,6 +2,7 @@ * This file is part of the coreboot project. * * Copyright (C) 2010 Advanced Micro Devices, Inc. + * Copyright (C) 2015 Timothy Pearson <tpearson@raptorengineeringinc.com>, Raptor Engineering * * 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 @@ -45,6 +46,8 @@ static void lpc_init(device_t dev) u32 dword; device_t sm_dev; + printk(BIOS_SPEW, "%s\n", __func__); + /* Enable the LPC Controller */ sm_dev = dev_find_slot(0, PCI_DEVFN(0x14, 0)); dword = pci_read_config32(sm_dev, 0x64); diff --git a/src/southbridge/amd/sb700/sm.c b/src/southbridge/amd/sb700/sm.c index 16958a2620..83a722bcb2 100644 --- a/src/southbridge/amd/sb700/sm.c +++ b/src/southbridge/amd/sb700/sm.c @@ -62,11 +62,9 @@ static void sm_init(device_t dev) printk(BIOS_INFO, "sm_init().\n"); rev = get_sb700_revision(dev); - ioapic_base = (void *)(pci_read_config32(dev, 0x74) & (0xffffffe0)); /* some like mem resource, but does not have enable bit */ - /* Don't rename APIC ID */ - /* TODO: We should call setup_ioapic() here. But kernel hangs if cpu is K8. - * We need to check out why and change back. */ - clear_ioapic(ioapic_base); + /* This works in a similar fashion to a memory resource, but without an enable bit */ + ioapic_base = (void *)(pci_read_config32(dev, 0x74) & (0xffffffe0)); + setup_ioapic(ioapic_base, 0); /* Don't rename IOAPIC ID. */ /* 2.10 Interrupt Routing/Filtering */ dword = pci_read_config8(dev, 0x62); @@ -298,6 +296,10 @@ static void sm_init(device_t dev) byte &= ~(1 << 1); pm_iowrite(0x59, byte); + /* Enable SCI as irq9. */ + outb(0x4, 0xC00); + outb(0x9, 0xC01); + printk(BIOS_INFO, "sm_init() end\n"); /* Enable NbSb virtual channel */ @@ -388,7 +390,7 @@ static void sb700_sm_read_resources(device_t dev) struct resource *res; /* Get the normal pci resources of this device */ - /* pci_dev_read_resources(dev); */ + pci_dev_read_resources(dev); /* apic */ res = new_resource(dev, 0x74); |