diff options
author | Rudolf Marek <r.marek@assembler.cz> | 2009-02-01 18:35:15 +0000 |
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committer | Rudolf Marek <r.marek@assembler.cz> | 2009-02-01 18:35:15 +0000 |
commit | 293b5f52253ec0e5edb38e9f7113afc7e8f8ba6e (patch) | |
tree | d0ab38cd89f3ceace9ee3de1cddd6bb5d9acea1a /src/northbridge/amd | |
parent | 1c49bc9744c2e9044ddd1c8d20a1728f57eda85c (diff) |
Following patch adds dynamic ACPI AML code generator which can be used to
generate run-time ACPI ASL code.
Moreover it demonstrates its use on Asus M2V-MX SE where the SSDT table is
generated by new function k8acpi_write_vars (technically similar to
update_ssdt). But lot of nicer.
x
Signed-off-by: Rudolf Marek <r.marek@assembler.cz>
Acked-by: Peter Stuge <peter@stuge.se>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3925 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'src/northbridge/amd')
-rw-r--r-- | src/northbridge/amd/amdk8/amdk8_acpi.c | 75 | ||||
-rw-r--r-- | src/northbridge/amd/amdk8/amdk8_acpi.h | 25 |
2 files changed, 99 insertions, 1 deletions
diff --git a/src/northbridge/amd/amdk8/amdk8_acpi.c b/src/northbridge/amd/amdk8/amdk8_acpi.c index e3709c4753..16739c4751 100644 --- a/src/northbridge/amd/amdk8/amdk8_acpi.c +++ b/src/northbridge/amd/amdk8/amdk8_acpi.c @@ -226,7 +226,6 @@ unsigned long acpi_fill_slit(unsigned long current) p[i*nodes+j] = hops_8[i*nodes+j] * 2 + 10; #endif - } } } @@ -236,6 +235,80 @@ unsigned long acpi_fill_slit(unsigned long current) return current; } +static int k8acpi_write_HT(void) { + device_t dev; + uint32_t dword; + int len, lenp, i; + + len = acpigen_write_name("HCLK"); + lenp = acpigen_write_package(HC_POSSIBLE_NUM); + + for(i=0;i<sysconf.hc_possible_num;i++) { + lenp += acpigen_write_dword(sysconf.pci1234[i]); + } + for(i=sysconf.hc_possible_num; i<HC_POSSIBLE_NUM; i++) { // in case we set array size to other than 8 + lenp += acpigen_write_dword(0x0); + } + + acpigen_patch_len(lenp - 1); + len += lenp; + + len += acpigen_write_name("HCDN"); + lenp = acpigen_write_package(HC_POSSIBLE_NUM); + + for(i=0;i<sysconf.hc_possible_num;i++) { + lenp += acpigen_write_dword(sysconf.hcdn[i]); + } + for(i=sysconf.hc_possible_num; i<HC_POSSIBLE_NUM; i++) { // in case we set array size to other than 8 + lenp += acpigen_write_dword(0x20202020); + } + acpigen_patch_len(lenp - 1); + len += lenp; + + return len; +} + +static int k8acpi_write_pci_data(int dlen, char *name, int offset) { + device_t dev; + uint32_t dword; + int len, lenp, i; + + dev = dev_find_slot(0, PCI_DEVFN(0x18, 1)); + + len = acpigen_write_name(name); + lenp = acpigen_write_package(dlen); + for(i=0; i<dlen; i++) { + dword = pci_read_config32(dev, offset+i*4); + lenp += acpigen_write_dword(dword); + } + // minus the opcode + acpigen_patch_len(lenp - 1); + return len + lenp; +} + +int k8acpi_write_vars(void) +{ + int lens; + msr_t msr; + char pscope[] = "\\._SB_PCI0"; + + lens = acpigen_write_scope(pscope); + lens += k8acpi_write_pci_data(4, "BUSN", 0xe0); + lens += k8acpi_write_pci_data(8, "PCIO", 0xc0); + lens += k8acpi_write_pci_data(16, "MMIO", 0x80); + lens += acpigen_write_name_byte("SBLK", sysconf.sblk); + lens += acpigen_write_name_byte("CBST", + ((sysconf.pci1234[0] >> 12) & 0xff) ? 0xf : 0x0); + lens += acpigen_write_name_dword("SBDN", sysconf.sbdn); + msr = rdmsr(TOP_MEM); + lens += acpigen_write_name_dword("TOM1", msr.lo); + + lens += k8acpi_write_HT(); + //minus opcode + acpigen_patch_len(lens - 1); + return lens; +} + // moved from mb acpi_tables.c static void intx_to_stream(u32 val, u32 len, u8 *dest) { diff --git a/src/northbridge/amd/amdk8/amdk8_acpi.h b/src/northbridge/amd/amdk8/amdk8_acpi.h new file mode 100644 index 0000000000..faf0474e65 --- /dev/null +++ b/src/northbridge/amd/amdk8/amdk8_acpi.h @@ -0,0 +1,25 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2009 Rudolf Marek <r.marek@assembler.cz> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License v2 as published by + * the Free Software Foundation. + * + * 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 + */ +#ifndef AMDK8_ACPI_H +#define AMDK8_ACPI_H +#include <arch/acpigen.h> + +int k8acpi_write_vars(void); + +#endif |