diff options
Diffstat (limited to 'src/soc/amd/cezanne/fch.c')
| -rw-r--r-- | src/soc/amd/cezanne/fch.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/src/soc/amd/cezanne/fch.c b/src/soc/amd/cezanne/fch.c index f853ecee93..5fb4f0ab98 100644 --- a/src/soc/amd/cezanne/fch.c +++ b/src/soc/amd/cezanne/fch.c @@ -1,9 +1,38 @@ /* SPDX-License-Identifier: GPL-2.0-only */ +#include <amdblocks/acpimmio.h> +#include <assert.h> +#include <soc/iomap.h> #include <soc/southbridge.h> +static void fch_init_acpi_ports(void) +{ + /* We use some of these ports in SMM regardless of whether or not + * ACPI tables are generated. Enable these ports indiscriminately. + */ + + pm_write16(PM_EVT_BLK, ACPI_PM_EVT_BLK); + pm_write16(PM1_CNT_BLK, ACPI_PM1_CNT_BLK); + pm_write16(PM_TMR_BLK, ACPI_PM_TMR_BLK); + pm_write16(PM_GPE0_BLK, ACPI_GPE0_BLK); + + if (CONFIG(HAVE_SMI_HANDLER)) { + /* TODO: add code for SMI handler case */ + dead_code(); + } else { + pm_write16(PM_ACPI_SMI_CMD, 0); + } + + /* Decode ACPI registers and enable standard features */ + pm_write8(PM_ACPI_CONF, PM_ACPI_DECODE_STD | + PM_ACPI_GLOBAL_EN | + PM_ACPI_RTC_EN_EN | + PM_ACPI_TIMER_EN_EN); +} + void fch_init(void *chip_info) { + fch_init_acpi_ports(); } void fch_final(void *chip_info) |