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author | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2021-01-08 13:58:10 +0200 |
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committer | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2021-01-24 21:06:22 +0000 |
commit | 0be419947eca04967a9f36d1f843026534cc3569 (patch) | |
tree | db00cd29fbb45cc450b2dbb6092fa37ef9f0704d /src/mainboard/google/stout/smihandler.c | |
parent | 37eb24be1585a76b293999df43e9a83af7d7ba09 (diff) | |
download | coreboot-0be419947eca04967a9f36d1f843026534cc3569.tar.xz |
arch/x86: Use wildcard for mb/smihandler.c
Change-Id: I306f8cd74af62c0cd30f445d20c47f774f122481
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/49247
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/mainboard/google/stout/smihandler.c')
-rw-r--r-- | src/mainboard/google/stout/smihandler.c | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/src/mainboard/google/stout/smihandler.c b/src/mainboard/google/stout/smihandler.c new file mode 100644 index 0000000000..d282bc7f23 --- /dev/null +++ b/src/mainboard/google/stout/smihandler.c @@ -0,0 +1,94 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#include <acpi/acpi_gnvs.h> +#include <device/pci_ops.h> +#include <console/console.h> +#include <cpu/x86/smm.h> +#include <soc/nvs.h> +#include <southbridge/intel/bd82x6x/pch.h> +#include <southbridge/intel/bd82x6x/me.h> +#include <southbridge/intel/common/pmbase.h> +#include <northbridge/intel/sandybridge/sandybridge.h> +#include <cpu/intel/model_206ax/model_206ax.h> + +/* Include EC functions */ +#include <ec/quanta/it8518/ec.h> +#include "ec.h" + +static u8 mainboard_smi_ec(void) +{ + u8 cmd = ec_it8518_get_event(); + + switch (cmd) { + case EC_SMI_LID_CLOSED: + printk(BIOS_DEBUG, "LID CLOSED, SHUTDOWN\n"); + /* Go to S5 */ + write_pmbase32(PM1_CNT, read_pmbase32(PM1_CNT) | (0xf << 10)); + break; + } + + return cmd; +} + +void mainboard_smi_gpi(u32 gpi_sts) +{ + if (gpi_sts & (1 << EC_SMI_GPI)) { + /* Process all pending events */ + while (mainboard_smi_ec() != 0); + } +} + +void mainboard_smi_sleep(u8 slp_typ) +{ + /* + * Tell the EC to Enable USB power for S3 if requested. + * Bit0 of 0x0D/Bit0 of 0x26 + * 0/0 All USB port off + * 1/0 USB on, all USB port didn't support wake up + * 0/1 USB on, yellow port support wake up charge, but may not support + * charge smart phone. + * 1/1 USB on, yellow port in AUTO mode and didn't support wake up system. + */ + if (gnvs->s3u0 != 0 || gnvs->s3u1 != 0) { + ec_write(EC_PERIPH_CNTL_3, ec_read(EC_PERIPH_CNTL_3) | 0x00); + ec_write(EC_USB_S3_EN, ec_read(EC_USB_S3_EN) | 0x01); + printk(BIOS_DEBUG, "USB wake from S3 enabled.\n"); + } else { + /* + * If USB charging in suspend is disabled then also disable + * the XHCI PME to prevent wake when the port power is cut + * after the transition into suspend. + */ + if (gnvs->xhci) { + u32 reg32 = pci_read_config32(PCH_XHCI_DEV, 0x74); + reg32 &= ~(1 << 8); /* disable PME */ + reg32 |= (1 << 15); /* clear PME status */ + pci_write_config32(PCH_XHCI_DEV, 0x74, reg32); + } + } + + ec_kbc_write_cmd(EC_KBD_CMD_MUTE); + ec_it8518_enable_wake_events(); +} + +int mainboard_smi_apmc(u8 apmc) +{ + switch (apmc) { + case APM_CNT_FINALIZE: + stout_ec_finalize_smm(); + break; + case APM_CNT_ACPI_ENABLE: + /* + * TODO(kimarie) Clear all pending events and enable SCI. + */ + ec_write_cmd(EC_CMD_NOTIFY_ACPI_ENTER); + break; + case APM_CNT_ACPI_DISABLE: + /* + * TODO(kimarie) Clear all pending events and enable SMI. + */ + ec_write_cmd(EC_CMD_NOTIFY_ACPI_EXIT); + break; + } + return 0; +} |