diff options
| author | Michael Xie <Michael.Xie@amd.com> | 2008-09-22 13:16:18 +0000 |
|---|---|---|
| committer | Stefan Reinauer <stepan@openbios.org> | 2008-09-22 13:16:18 +0000 |
| commit | 80d7c85fb9e9f0b301b01e68f475b2ede34ec877 (patch) | |
| tree | ff2f50ec27379d2a28b711addc7fc4fc9c672dd7 /src/mainboard/amd/dbm690t/fadt.c | |
| parent | 7586cef37aace94f1558a391b25245f08523ab95 (diff) | |
| download | coreboot-80d7c85fb9e9f0b301b01e68f475b2ede34ec877.tar.xz | |
Patch for AMD DBM690T board.
Signed-off-by: Michael Xie <Michael.Xie@amd.com>
Reviewed-by: Marc Jones <marc.jones@amd.com>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3590 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'src/mainboard/amd/dbm690t/fadt.c')
| -rw-r--r-- | src/mainboard/amd/dbm690t/fadt.c | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/src/mainboard/amd/dbm690t/fadt.c b/src/mainboard/amd/dbm690t/fadt.c new file mode 100644 index 0000000000..d8491ada27 --- /dev/null +++ b/src/mainboard/amd/dbm690t/fadt.c @@ -0,0 +1,96 @@ +/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2008 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 <string.h>
+#include <console/console.h>
+#include <arch/acpi.h>
+
+
+
+/**
+ * Create the Fixed ACPI Description Tables (FADT) for this board.
+ The FADT defines various fixed hardware ACPI information vital to an ACPI-compatible
+ OS, such as the base address for the following hardware registers blocks:
+ PM1a_EVT_BLK, PM1b_EVT_BLK, PM1a_CNT_BLK, PM1b_CNT_BLK,
+ PM2_CNT_BLK, PM_TMR_BLK, GPE0_BLK and GPE1_BLK.
+ The FADT also has a pointer to the DSDT that contains the Differentiated Definition Block,
+ which in turn provides variable information to an ACPI-compatible OS concerning the base
+ system design.
+
+ Not all blocks are necessary usualy only PM1a, PMTMR and GPE0 are used.
+ */
+void acpi_create_fadt(acpi_fadt_t *fadt, acpi_facs_t *facs, void *dsdt)
+{
+ acpi_header_t *header=&(fadt->header);
+
+ printk_debug("pm_base: 0x%04x\n", pm_base);
+
+ memset((void *)fadt,0,sizeof(acpi_fadt_t));
+
+ /* Prepare the header */
+ memcpy(header->signature,"FACP",4);
+ header->length = 244;
+ header->revision = 1;
+ memcpy(header->oem_id,OEM_ID,6);
+ memcpy(header->oem_table_id,"LXBACPI ",8);
+ memcpy(header->asl_compiler_id,ASLC,4);
+ header->asl_compiler_revision=0;
+
+
+ fadt->firmware_ctrl=(u32)facs;
+ fadt->dsdt= (u32)dsdt;
+
+ /*
+ 0: unspecified
+ 1: desktop
+ 2: mobile
+ 3: workstation
+ 4: enterprise server
+ */
+ fadt->preferred_pm_profile=0x01;
+
+ /*
+ System vector the SCI interrupt is wired to in 8259 mode.
+ On systems that do not contain the 8259, this field contains the Global
+ System interrupt number of the SCI interrupt. OSPM is required to treat
+ the ACPI SCI interrupt as a sharable, level, active low interrupt.
+ SB600 BDG 4.1
+ */
+ fadt->sci_int=4;
+
+ /*
+ System port address of the SMI Command Port. During ACPI OS initialization,
+ OSPM can determine that the ACPI hardware registers are owned by SMI (by way
+ of the SCI_EN bit), in which case the ACPI OS issues the ACPI_ENABLE command
+ to the SMI_CMD port. The SCI_EN bit effectively tracks the ownership of the
+ ACPI hardware registers. OSPM issues commands to the SMI_CMD port
+ synchronously from the boot processor.
+ This filed is reserved and must be zero on system that does not support
+ System Management mode.
+ */
+ fadt->smi_cmd = 0;
+
+ /*Those two fields are reserved and must be zero on systems that do not
+ support Legacy Mode.*/
+ fadt->acpi_enable = 0;
+ fadt->acpi_disable = 0;
+
+ fadt->s4bios_req = 0x0;
+ fadt->pstate_cnt = 0x0;
+
+}
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