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hpet: common ACPI generation

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HPET's min ticks (minimum time between events to avoid
losing interrupts) is chipset specific, so move it to
Kconfig.

Via also has a special base address, so move it as well.

Apart from these (and the base address was already #defined),
the table is very uniform.

Change-Id: I848a2e2b0b16021c7ee5ba99097fa6a5886c3286
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-on: http://review.coreboot.org/1562
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-by: Dave Frodin <dave.frodin@se-eng.com>
This commit is contained in:
Patrick Georgi
2012-10-05 21:54:38 +02:00
parent ec2c18ee60
commit 9aeb69447d
36 changed files with 82 additions and 566 deletions
Download Patch File Download Diff File Expand all files Collapse all files

34
src/mainboard/getac/p470/acpi_tables.c
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@@ -53,38 +53,6 @@ static void acpi_create_gnvs(global_nvs_t *gnvs)
gnvs->did[4] = 0x00000005;
}
static void acpi_create_intel_hpet(acpi_hpet_t * hpet)
{
#define HPET_ADDR 0xfed00000ULL
acpi_header_t *header = &(hpet->header);
acpi_addr_t *addr = &(hpet->addr);
memset((void *) hpet, 0, sizeof(acpi_hpet_t));
/* fill out header fields */
memcpy(header->signature, "HPET", 4);
memcpy(header->oem_id, OEM_ID, 6);
memcpy(header->oem_table_id, ACPI_TABLE_CREATOR, 8);
memcpy(header->asl_compiler_id, ASLC, 4);
header->length = sizeof(acpi_hpet_t);
header->revision = 1;
/* fill out HPET address */
addr->space_id = 0; /* Memory */
addr->bit_width = 64;
addr->bit_offset = 0;
addr->addrl = HPET_ADDR & 0xffffffff;
addr->addrh = HPET_ADDR >> 32;
hpet->id = 0x8086a201; /* Intel */
hpet->number = 0x00;
hpet->min_tick = 0x0080;
header->checksum =
acpi_checksum((void *) hpet, sizeof(acpi_hpet_t));
}
static long acpi_create_ecdt(acpi_ecdt_t * ecdt)
{
/* Attention: Make sure these match the values from
@@ -230,7 +198,7 @@ unsigned long write_acpi_tables(unsigned long start)
hpet = (acpi_hpet_t *) current;
current += sizeof(acpi_hpet_t);
ALIGN_CURRENT;
acpi_create_intel_hpet(hpet);
acpi_create_hpet(hpet);
acpi_add_table(rsdp, hpet);
/* If we want to use HPET Timers Linux wants an MADT */