Martin Roth ([email protected]) just uploaded a new patch set to gerrit, which 
you can find at http://review.coreboot.org/942

-gerrit

commit af98adb00d0c591af60e018cf212cd7d05e1e726
Author: Martin Roth <[email protected]>
Date:   Fri Apr 27 11:48:32 2012 -0600

    Update amd/south_station/fadt.c with various fixes
    
    This is a model fadt.c that I would like to use for updating
    several other AMD platforms with after acceptance.
    
    - Updated to match ACPI 3.0b specification and added comments
      to reflect that.
    - Since smi_cmd is 0, remove commands that rely on it:
      acpi_enable, acpi_disable, & pstate_cnt
      Add comments to that effect.
    - Changed preferred_pm_profile to SOHO Server (platform
      specific)
    - The southstation platform is legacy free - Updated
      iapc_boot_arch and flags to reflect that.
    - Added reset_register flag so that operating systems
      will actually use the reset_reg.  This is important
      on legacy free systems.
    - Updated Generic Address Structures to use access_size
      name in the updated acpi.h.  Added access sizes to
      the structures where reasonable.
    - Removed 64-bit x_firmware_ctl pointer to facs.  This was
      causing a fwts failure and windows-64 BSOD.
    - Added bit width for pm2_cnt_blk and modified gpe0_blk bit
      to match the hardware.
    
    Change-Id: Icf1a982aa122636d1088c8b80f53d04732b54c49
    Signed-off-by: Martin L Roth <[email protected]>
---
 src/mainboard/amd/south_station/fadt.c |  105 +++++++++++++++++++-------------
 1 files changed, 62 insertions(+), 43 deletions(-)

diff --git a/src/mainboard/amd/south_station/fadt.c 
b/src/mainboard/amd/south_station/fadt.c
index 020d011..f8888d3 100644
--- a/src/mainboard/amd/south_station/fadt.c
+++ b/src/mainboard/amd/south_station/fadt.c
@@ -30,17 +30,23 @@
 #include <device/device.h>
 #include "SBPLATFORM.h"
 
+
+/*
+ * Reference section 5.2.9 Fixed ACPI Description Table (FADT)
+ * in the ACPI 3.0b specification.
+ */
 void acpi_create_fadt(acpi_fadt_t * fadt, acpi_facs_t * facs, void *dsdt)
 {
        u16 val = 0;
        acpi_header_t *header = &(fadt->header);
 
        printk(BIOS_DEBUG, "ACPI_BLK_BASE: 0x%04x\n", ACPI_BLK_BASE);
+
        /* Prepare the header */
        memset((void *)fadt, 0, sizeof(acpi_fadt_t));
        memcpy(header->signature, "FACP", 4);
-       header->length = 244;
-       header->revision = 3;
+       header->length = sizeof(acpi_fadt_t);
+       header->revision = ACPI_FADT_REV_ACPI_3_0;
        memcpy(header->oem_id, OEM_ID, 6);
        memcpy(header->oem_table_id, "COREBOOT", 8);
        memcpy(header->asl_compiler_id, ASLC, 4);
@@ -48,15 +54,14 @@ void acpi_create_fadt(acpi_fadt_t * fadt, acpi_facs_t * 
facs, void *dsdt)
 
        fadt->firmware_ctrl = (u32) facs;
        fadt->dsdt = (u32) dsdt;
-       /* 3=Workstation,4=Enterprise Server, 7=Performance Server */
-       fadt->preferred_pm_profile = 0x03;
-       fadt->sci_int = 9;
-       /* disable system management mode by setting to 0: */
-       fadt->smi_cmd = 0;
-       fadt->acpi_enable = 0xf0;
-       fadt->acpi_disable = 0xf1;
-       fadt->s4bios_req = 0x0;
-       fadt->pstate_cnt = 0xe2;
+       fadt->model = 0;                /* reserved, should be 0 ACPI 3.0 */
+       fadt->preferred_pm_profile = PM_SOHO_SERVER;
+       fadt->sci_int = 9;              /* HUDSON 1 - IRQ 09 – ACPI SCI */
+       fadt->smi_cmd = 0;              /* disable system management mode */
+       fadt->acpi_enable = 0;  /* unused if SMI_CMD = 0 */
+       fadt->acpi_disable = 0; /* unused if SMI_CMD = 0 */
+       fadt->s4bios_req = 0;   /* unused if SMI_CMD = 0 */
+       fadt->pstate_cnt = 0;   /* unused if SMI_CMD = 0 */
 
        val = PM1_EVT_BLK_ADDRESS;
        WritePMIO(SB_PMIOA_REG60, AccWidthUint16, &val);
@@ -90,7 +95,7 @@ void acpi_create_fadt(acpi_fadt_t * fadt, acpi_facs_t * facs, 
void *dsdt)
        fadt->pm2_cnt_blk = ACPI_PMA_CNT_BLK_ADDRESS;
        fadt->pm_tmr_blk = PM1_TMR_BLK_ADDRESS;
        fadt->gpe0_blk = GPE0_BLK_ADDRESS;
-       fadt->gpe1_blk = 0x0000;        /* we dont have gpe1 block, do we? */
+       fadt->gpe1_blk = 0;             /* No gpe1 block in hudson1 */
 
        fadt->pm1_evt_len = 4;
        fadt->pm1_cnt_len = 2;
@@ -103,89 +108,103 @@ void acpi_create_fadt(acpi_fadt_t * fadt, acpi_facs_t * 
facs, void *dsdt)
        fadt->cst_cnt = 0xe3;
        fadt->p_lvl2_lat = 101;
        fadt->p_lvl3_lat = 1001;
-       fadt->flush_size = 0;
-       fadt->flush_stride = 0;
+       fadt->flush_size = 0;   /* set to 0 if WBINVD is 1 in flags */
+       fadt->flush_stride = 0; /* set to 0 if WBINVD is 1 in flags */
        fadt->duty_offset = 1;
        fadt->duty_width = 3;
        fadt->day_alrm = 0;     /* 0x7d these have to be */
        fadt->mon_alrm = 0;     /* 0x7e added to cmos.layout */
        fadt->century = 0;      /* 0x7f to make rtc alrm work */
-       fadt->iapc_boot_arch = 0x3;     /* See table 5-11 */
-       fadt->flags = 0x0001c1a5;/* 0x25; */
-
-       fadt->res2 = 0;
-
-       fadt->reset_reg.space_id = 1;
+       fadt->iapc_boot_arch = ACPI_FADT_LEGACY_FREE;   /* See table 5-10 */
+       fadt->res2 = 0;         /* reserved, MUST be 0 ACPI 3.0 */
+       fadt->flags = ACPI_FADT_WBINVD | /* See table 5-10 ACPI 3.0a spec */
+                               ACPI_FADT_C1_SUPPORTED |
+                               ACPI_FADT_SLEEP_BUTTON |
+                               ACPI_FADT_S4_RTC_WAKE |
+                               ACPI_FADT_32BIT_TIMER |
+                               ACPI_FADT_RESET_REGISTER |
+                               ACPI_FADT_PCI_EXPRESS_WAKE |
+                               ACPI_FADT_S4_RTC_VALID |
+                               ACPI_FADT_REMOTE_POWER_ON;
+
+       /* Format is from 5.2.3.1: Generic Address Structure */
+       /* reset_reg: see section 4.7.3.6 ACPI 3.0a spec */
+       /* 8 bit write of value 0x06 to 0xCF9 in IO space */
+       fadt->reset_reg.space_id = ACPI_ADDRESS_SPACE_IO;
        fadt->reset_reg.bit_width = 8;
        fadt->reset_reg.bit_offset = 0;
-       fadt->reset_reg.resv = 0;
+       fadt->reset_reg.access_size = ACPI_ACCESS_SIZE_BYTE_ACCESS;
        fadt->reset_reg.addrl = 0xcf9;
        fadt->reset_reg.addrh = 0x0;
-
        fadt->reset_value = 6;
-       fadt->x_firmware_ctl_l = (u32) facs;
+
+       fadt->res3 = 0;         /* reserved, MUST be 0 ACPI 3.0 */
+       fadt->res4 = 0;         /* reserved, MUST be 0 ACPI 3.0 */
+       fadt->res5 = 0;         /* reserved, MUST be 0 ACPI 3.0 */
+
+       fadt->x_firmware_ctl_l = 0;     /* set to 0 if firmware_ctrl is used */
        fadt->x_firmware_ctl_h = 0;
        fadt->x_dsdt_l = (u32) dsdt;
        fadt->x_dsdt_h = 0;
 
-       fadt->x_pm1a_evt_blk.space_id = 1;
+       fadt->x_pm1a_evt_blk.space_id = ACPI_ADDRESS_SPACE_IO;
        fadt->x_pm1a_evt_blk.bit_width = 32;
        fadt->x_pm1a_evt_blk.bit_offset = 0;
-       fadt->x_pm1a_evt_blk.resv = 0;
+       fadt->x_pm1a_evt_blk.access_size = 0;
        fadt->x_pm1a_evt_blk.addrl = PM1_EVT_BLK_ADDRESS;
        fadt->x_pm1a_evt_blk.addrh = 0x0;
 
-       fadt->x_pm1b_evt_blk.space_id = 1;
-       fadt->x_pm1b_evt_blk.bit_width = 4;
+       fadt->x_pm1b_evt_blk.space_id = ACPI_ADDRESS_SPACE_IO;
+       fadt->x_pm1b_evt_blk.bit_width = 0;
        fadt->x_pm1b_evt_blk.bit_offset = 0;
-       fadt->x_pm1b_evt_blk.resv = 0;
+       fadt->x_pm1b_evt_blk.access_size = 0;
        fadt->x_pm1b_evt_blk.addrl = 0x0;
        fadt->x_pm1b_evt_blk.addrh = 0x0;
 
 
-       fadt->x_pm1a_cnt_blk.space_id = 1;
+       fadt->x_pm1a_cnt_blk.space_id = ACPI_ADDRESS_SPACE_IO;
        fadt->x_pm1a_cnt_blk.bit_width = 16;
        fadt->x_pm1a_cnt_blk.bit_offset = 0;
-       fadt->x_pm1a_cnt_blk.resv = 0;
+       fadt->x_pm1a_cnt_blk.access_size = 0;
        fadt->x_pm1a_cnt_blk.addrl = PM1_CNT_BLK_ADDRESS;
        fadt->x_pm1a_cnt_blk.addrh = 0x0;
 
-       fadt->x_pm1b_cnt_blk.space_id = 1;
-       fadt->x_pm1b_cnt_blk.bit_width = 2;
+       fadt->x_pm1b_cnt_blk.space_id = ACPI_ADDRESS_SPACE_IO;
+       fadt->x_pm1b_cnt_blk.bit_width = 0;
        fadt->x_pm1b_cnt_blk.bit_offset = 0;
-       fadt->x_pm1b_cnt_blk.resv = 0;
+       fadt->x_pm1b_cnt_blk.access_size = 0;
        fadt->x_pm1b_cnt_blk.addrl = 0x0;
        fadt->x_pm1b_cnt_blk.addrh = 0x0;
 
 
-       fadt->x_pm2_cnt_blk.space_id = 1;
-       fadt->x_pm2_cnt_blk.bit_width = 0;
+       fadt->x_pm2_cnt_blk.space_id = ACPI_ADDRESS_SPACE_IO;
+       fadt->x_pm2_cnt_blk.bit_width = 8;      /* Hudson 1 Pm2Control is 8 
bits */
        fadt->x_pm2_cnt_blk.bit_offset = 0;
-       fadt->x_pm2_cnt_blk.resv = 0;
+       fadt->x_pm2_cnt_blk.access_size = ACPI_ACCESS_SIZE_BYTE_ACCESS;
        fadt->x_pm2_cnt_blk.addrl = ACPI_PMA_CNT_BLK_ADDRESS;
        fadt->x_pm2_cnt_blk.addrh = 0x0;
 
 
-       fadt->x_pm_tmr_blk.space_id = 1;
+       fadt->x_pm_tmr_blk.space_id = ACPI_ADDRESS_SPACE_IO;
        fadt->x_pm_tmr_blk.bit_width = 32;
        fadt->x_pm_tmr_blk.bit_offset = 0;
-       fadt->x_pm_tmr_blk.resv = 0;
+       fadt->x_pm_tmr_blk.access_size = 0;
        fadt->x_pm_tmr_blk.addrl = PM1_TMR_BLK_ADDRESS;
        fadt->x_pm_tmr_blk.addrh = 0x0;
 
 
-       fadt->x_gpe0_blk.space_id = 1;
-       fadt->x_gpe0_blk.bit_width = 32;
+       fadt->x_gpe0_blk.space_id = ACPI_ADDRESS_SPACE_IO;
+       fadt->x_gpe0_blk.bit_width = 64;
        fadt->x_gpe0_blk.bit_offset = 0;
-       fadt->x_gpe0_blk.resv = 0;
+       fadt->x_gpe0_blk.access_size = ACPI_ACCESS_SIZE_DWORD_ACCESS;
        fadt->x_gpe0_blk.addrl = GPE0_BLK_ADDRESS;
        fadt->x_gpe0_blk.addrh = 0x0;
 
 
-       fadt->x_gpe1_blk.space_id = 1;
+       fadt->x_gpe1_blk.space_id = ACPI_ADDRESS_SPACE_IO;
        fadt->x_gpe1_blk.bit_width = 0;
        fadt->x_gpe1_blk.bit_offset = 0;
-       fadt->x_gpe1_blk.resv = 0;
+       fadt->x_gpe1_blk.access_size = 0;
        fadt->x_gpe1_blk.addrl = 0;
        fadt->x_gpe1_blk.addrh = 0x0;
 

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