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| author | Patrick Georgi <patrick@georgi-clan.de> | 2012-10-05 21:54:38 +0200 |
|---|---|---|
| committer | Patrick Georgi <patrick@georgi-clan.de> | 2012-10-08 21:23:08 +0200 |
| commit | 9aeb69447d3839675b2cac51c3e95a4724fd9b0d (patch) | |
| tree | d9b1cc7483a51ab340d6d9fae78a30e562f99767 /src/arch/x86 | |
| parent | ec2c18ee6068ef6adf6f5be437d7047c91773654 (diff) | |
| download | coreboot-9aeb69447d3839675b2cac51c3e95a4724fd9b0d.tar.xz | |
hpet: common ACPI generation
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>
Diffstat (limited to 'src/arch/x86')
| -rw-r--r-- | src/arch/x86/Kconfig | 4 | ||||
| -rw-r--r-- | src/arch/x86/boot/acpi.c | 14 |
2 files changed, 13 insertions, 5 deletions
diff --git a/src/arch/x86/Kconfig b/src/arch/x86/Kconfig index 6d56ec6bfc..7e0d195548 100644 --- a/src/arch/x86/Kconfig +++ b/src/arch/x86/Kconfig @@ -111,4 +111,8 @@ config PCI_CONF2 bool default n +config HPET_ADDRESS + hex + default 0xfed00000 if !HPET_ADDRESS_OVERRIDE + endmenu diff --git a/src/arch/x86/boot/acpi.c b/src/arch/x86/boot/acpi.c index 69322088e2..9881ffe4ed 100644 --- a/src/arch/x86/boot/acpi.c +++ b/src/arch/x86/boot/acpi.c @@ -36,6 +36,11 @@ #include <timestamp.h> #endif +/* FIXME: Kconfig doesn't support overridable defaults :-( */ +#ifndef CONFIG_HPET_MIN_TICKS +#define CONFIG_HPET_MIN_TICKS 0x1000 +#endif + u8 acpi_checksum(u8 *table, u32 length) { u8 ret = 0; @@ -356,7 +361,6 @@ void acpi_create_slit(acpi_slit_t *slit) /* http://www.intel.com/hardwaredesign/hpetspec_1.pdf */ void acpi_create_hpet(acpi_hpet_t *hpet) { -#define HPET_ADDR 0xfed00000ULL acpi_header_t *header = &(hpet->header); acpi_addr_t *addr = &(hpet->addr); @@ -375,12 +379,12 @@ void acpi_create_hpet(acpi_hpet_t *hpet) addr->space_id = 0; /* Memory */ addr->bit_width = 64; addr->bit_offset = 0; - addr->addrl = HPET_ADDR & 0xffffffff; - addr->addrh = HPET_ADDR >> 32; + addr->addrl = CONFIG_HPET_ADDRESS & 0xffffffff; + addr->addrh = ((unsigned long long)CONFIG_HPET_ADDRESS) >> 32; - hpet->id = 0x102282a0; /* AMD! FIXME */ + hpet->id = *(unsigned int*)CONFIG_HPET_ADDRESS; hpet->number = 0; - hpet->min_tick = 4096; + hpet->min_tick = CONFIG_HPET_MIN_TICKS; header->checksum = acpi_checksum((void *)hpet, sizeof(acpi_hpet_t)); } |