From b9136ed8473e610d5532254984a440c1690d0af9 Mon Sep 17 00:00:00 2001 From: Kerry Sheh Date: Tue, 15 Nov 2011 21:27:57 +0800 Subject: mainboard: Add AMD unionstation RDK support AMD unionstation Reference Design Kit is Designed for hd settop box application. This platform using family14 APU, SB800 southbridge. Vgabios is required, can download vgabios from AMD NDA website. Verified Feature: HDMI, LAN, mini-pcie slots, sata, usb, analog audio and optical fiber digital audio output. Change-Id: Ib1d1d8c889d6fb29f4298b57dfe5c5c1cea1431c Signed-off-by: Kerry She Signed-off-by: Kerry She Reviewed-on: http://review.coreboot.org/434 Tested-by: build bot (Jenkins) Reviewed-by: Marc Jones --- src/mainboard/amd/union_station/reset.c | 66 +++++++++++++++++++++++++++++++++ 1 file changed, 66 insertions(+) create mode 100644 src/mainboard/amd/union_station/reset.c (limited to 'src/mainboard/amd/union_station/reset.c') diff --git a/src/mainboard/amd/union_station/reset.c b/src/mainboard/amd/union_station/reset.c new file mode 100644 index 0000000000..36bc6e0f17 --- /dev/null +++ b/src/mainboard/amd/union_station/reset.c @@ -0,0 +1,66 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2011 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. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + + +#include +#include /*inb, outb*/ +#include /*pci_read_config32, device_t, PCI_DEV*/ + +#define HT_INIT_CONTROL 0x6C +#define HTIC_BIOSR_Detect (1<<5) + +#if CONFIG_MAX_PHYSICAL_CPUS > 32 +#define NODE_PCI(x, fn) ((x<32)?(PCI_DEV(CONFIG_CBB,(CONFIG_CDB+x),fn)):(PCI_DEV((CONFIG_CBB-1),(CONFIG_CDB+x-32),fn))) +#else +#define NODE_PCI(x, fn) PCI_DEV(CONFIG_CBB,(CONFIG_CDB+x),fn) +#endif + +static inline void set_bios_reset(void) +{ + u32 nodes; + u32 htic; + device_t dev; + int i; + + nodes = ((pci_read_config32(PCI_DEV(CONFIG_CBB, CONFIG_CDB, 0), 0x60) >> 4) & 7) + 1; + for(i = 0; i < nodes; i++) { + dev = NODE_PCI(i, 0); + htic = pci_read_config32(dev, HT_INIT_CONTROL); + htic &= ~HTIC_BIOSR_Detect; + pci_write_config32(dev, HT_INIT_CONTROL, htic); + } +} + +void hard_reset(void) +{ + set_bios_reset(); + /* Try rebooting through port 0xcf9 */ + /* Actually it is not a real hard_reset --- it only reset coherent link table, but not reset link freq and width */ + outb((0 << 3) | (0 << 2) | (1 << 1), 0xcf9); + outb((0 << 3) | (1 << 2) | (1 << 1), 0xcf9); +} + +//SbReset(); +void soft_reset(void) +{ + set_bios_reset(); + /* link reset */ + outb(0x06, 0x0cf9); +} + -- cgit v1.2.3