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| author | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2014-12-29 11:32:27 +0200 |
|---|---|---|
| committer | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2015-04-28 07:59:13 +0200 |
| commit | b85a87b7d6f9f12d5c71c32741c8af731ed6be7e (patch) | |
| tree | 67553a9c683557ead346dc1c7b155d3eac475090 /src/mainboard/google | |
| parent | 189f3ba974df8f1b305cfa421a151fe069fc1a6f (diff) | |
| download | coreboot-b85a87b7d6f9f12d5c71c32741c8af731ed6be7e.tar.xz | |
intel SMI handlers: Refactor GPI SMI/SCI routing
Move the GPI interrupt routing selection between SMI/SCI from
mainboards to southbridge. There is speculation if this is all
just legacy APM stuff that could be removed with a followup.
Change-Id: Iab14cf347584513793f417febc47f0559e17f5a5
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Signed-off-by: Nicolas Reinecke <nr@das-labor.org>
Reviewed-on: http://review.coreboot.org/7967
Tested-by: build bot (Jenkins)
Reviewed-by: Alexander Couzens <lynxis@fe80.eu>
Diffstat (limited to 'src/mainboard/google')
| -rw-r--r-- | src/mainboard/google/parrot/smihandler.c | 43 |
1 files changed, 2 insertions, 41 deletions
diff --git a/src/mainboard/google/parrot/smihandler.c b/src/mainboard/google/parrot/smihandler.c index 4a189f8695..1d1b23c02d 100644 --- a/src/mainboard/google/parrot/smihandler.c +++ b/src/mainboard/google/parrot/smihandler.c @@ -29,44 +29,6 @@ #include <ec/compal/ene932/ec.h> #include "ec.h" -/* Power Management PCI Configuration Registers - * Bus 0, Device 31, Function 0, Offset 0xB8 - * 00 = No Effect - * 01 = SMI# - * 10 = SCI - * 11 = NMI - */ -#define GPI_ROUT 0x8000F8B8 -#define GPI_IS_SMI 0x01 -#define GPI_IS_SCI 0x02 - -static void set_lid_gpi_mode(u32 mode) -{ - u32 reg32 = 0; - u16 reg16 = 0; - - /* read the GPI register, clear the lid GPI's mode, write the new mode - * and write out the register. - */ - outl(GPI_ROUT, 0xcf8); - reg32 = inl(0xcfc); - reg32 &= ~(0x03 << (EC_LID_GPI * 2)); - reg32 |= (mode << (EC_LID_GPI * 2)); - outl(GPI_ROUT, 0xcf8); - outl(reg32, 0xcfc); - - /* Set or Disable Lid GPE as SMI source in the ALT_GPI_SMI_EN register. */ - reg16 = inw(smm_get_pmbase() + ALT_GP_SMI_EN); - if (mode == GPI_IS_SCI) { - reg16 &= ~(1 << EC_LID_GPI); - } else { - reg16 |= (1 << EC_LID_GPI); - } - outw(reg16, smm_get_pmbase() + ALT_GP_SMI_EN); - - return; -} - int mainboard_io_trap_handler(int smif) { printk(BIOS_DEBUG, "mainboard_io_trap_handler: %x\n", smif); @@ -200,8 +162,7 @@ int mainboard_smi_apmc(u8 apmc) ec_kbc_write_ib(0xE8); /* Set LID GPI to generate SCIs */ - set_lid_gpi_mode(GPI_IS_SCI); - + gpi_route_interrupt(EC_LID_GPI, GPI_IS_SCI); break; case APMC_ACPI_DIS: printk(BIOS_DEBUG, "APMC: ACPI_DIS\n"); @@ -211,7 +172,7 @@ int mainboard_smi_apmc(u8 apmc) ec_kbc_write_ib(0xE9); /* Set LID GPI to generate SMIs */ - set_lid_gpi_mode(GPI_IS_SMI); + gpi_route_interrupt(EC_LID_GPI, GPI_IS_SMI); break; } return 0; |