diff options
| -rw-r--r-- | src/mainboard/hp/pavilion_m6_1035dx/Kconfig | 1 | ||||
| -rw-r--r-- | src/mainboard/hp/pavilion_m6_1035dx/Makefile.inc | 2 | ||||
| -rw-r--r-- | src/mainboard/hp/pavilion_m6_1035dx/ec.c | 18 | ||||
| -rw-r--r-- | src/mainboard/hp/pavilion_m6_1035dx/ec.h | 4 | ||||
| -rw-r--r-- | src/mainboard/hp/pavilion_m6_1035dx/mainboard.c | 5 | ||||
| -rw-r--r-- | src/mainboard/hp/pavilion_m6_1035dx/mainboard_smi.c | 77 |
6 files changed, 102 insertions, 5 deletions
diff --git a/src/mainboard/hp/pavilion_m6_1035dx/Kconfig b/src/mainboard/hp/pavilion_m6_1035dx/Kconfig index 87e8212651..d6cdb10615 100644 --- a/src/mainboard/hp/pavilion_m6_1035dx/Kconfig +++ b/src/mainboard/hp/pavilion_m6_1035dx/Kconfig @@ -30,6 +30,7 @@ config BOARD_SPECIFIC_OPTIONS # dummy select HAVE_PIRQ_TABLE select HAVE_MP_TABLE select HAVE_ACPI_RESUME + select HAVE_SMI_HANDLER select SERIAL_CPU_INIT select HAVE_ACPI_TABLES select BOARD_ROMSIZE_KB_4096 diff --git a/src/mainboard/hp/pavilion_m6_1035dx/Makefile.inc b/src/mainboard/hp/pavilion_m6_1035dx/Makefile.inc index 07ea765df4..7039c72c0f 100644 --- a/src/mainboard/hp/pavilion_m6_1035dx/Makefile.inc +++ b/src/mainboard/hp/pavilion_m6_1035dx/Makefile.inc @@ -27,3 +27,5 @@ ramstage-y += agesawrapper.c ramstage-y += BiosCallOuts.c ramstage-y += PlatformGnbPcie.c ramstage-y += ec.c + +smm-y += mainboard_smi.c diff --git a/src/mainboard/hp/pavilion_m6_1035dx/ec.c b/src/mainboard/hp/pavilion_m6_1035dx/ec.c index d61a2e5301..2dd0009b7b 100644 --- a/src/mainboard/hp/pavilion_m6_1035dx/ec.c +++ b/src/mainboard/hp/pavilion_m6_1035dx/ec.c @@ -13,16 +13,24 @@ static void set_keyboard_matrix_us(void) ec_kbc_write_ib(0xE5); } -/* Tell EC to operate in ACPI mode, thus generating SCIs on events, not SMIs */ -static void enter_acpi_mode(void) +/* Tell EC to operate in APM mode. Events generate SMIs instead of SCIs */ +static void enter_apm_mode(void) { ec_kbc_write_cmd(0x59); - ec_kbc_write_ib(0xE8); + ec_kbc_write_ib(0xE9); } void pavilion_m6_1035dx_ec_init(void) { set_keyboard_matrix_us(); - /* This could also be done in an SMI, should we decide to use SMM */ - enter_acpi_mode(); + + /* + * The EC has a special "blinking Caps Lock LED" mode which it normally + * enters when it believes the OS is not responding. It occasionally + * disables battery charging when in this mode, although other + * functionality is unaffected. Although the EC starts in APM mode by + * default, it only leaves the "blinking Caps Lock LED" mode after + * receiving the following command. + */ + enter_apm_mode(); } diff --git a/src/mainboard/hp/pavilion_m6_1035dx/ec.h b/src/mainboard/hp/pavilion_m6_1035dx/ec.h index 0c00d7aae0..579bf7eba8 100644 --- a/src/mainboard/hp/pavilion_m6_1035dx/ec.h +++ b/src/mainboard/hp/pavilion_m6_1035dx/ec.h @@ -6,6 +6,10 @@ #ifndef _MAINBOARD_HP_PAVILION_M6_1035DX_EC_H #define _MAINBOARD_HP_PAVILION_M6_1035DX_EC_H +#define EC_SMI_GEVENT 23 + +#ifndef __SMM__ void pavilion_m6_1035dx_ec_init(void); +#endif #endif /* _MAINBOARD_HP_PAVILION_M6_1035DX_EC_H */ diff --git a/src/mainboard/hp/pavilion_m6_1035dx/mainboard.c b/src/mainboard/hp/pavilion_m6_1035dx/mainboard.c index 2e2b72bf03..756b443b5e 100644 --- a/src/mainboard/hp/pavilion_m6_1035dx/mainboard.c +++ b/src/mainboard/hp/pavilion_m6_1035dx/mainboard.c @@ -30,6 +30,8 @@ #include <device/pci.h> #include <device/pci_def.h> +#include <southbridge/amd/agesa/hudson/smi.h> + /************************************************* * enable the dedicated function in parmer board. *************************************************/ @@ -39,6 +41,9 @@ static void mainboard_enable(device_t dev) pavilion_m6_1035dx_ec_init(); + hudson_enable_gevent_smi(EC_SMI_GEVENT); + hudson_enable_smi_generation(); + /* * The mainboard is the first place that we get control in ramstage. Check * for S3 resume and call the approriate AGESA/CIMx resume functions. diff --git a/src/mainboard/hp/pavilion_m6_1035dx/mainboard_smi.c b/src/mainboard/hp/pavilion_m6_1035dx/mainboard_smi.c new file mode 100644 index 0000000000..bb9cc2e0a2 --- /dev/null +++ b/src/mainboard/hp/pavilion_m6_1035dx/mainboard_smi.c @@ -0,0 +1,77 @@ +/* + * SMI handler -- mostly takes care of SMIs from the EC + * + * Copyright (C) 2014 Alexandru Gagniuc <mr.nuke.me@gmail.com> + * Subject to the GNU GPL v2, or (at your option) any later version. + */ +#include "ec.h" + +#include <console/console.h> +#include <cpu/x86/smm.h> +#include <delay.h> +#include <ec/compal/ene932/ec.h> +#include <southbridge/amd/agesa/hudson/hudson.h> + +enum ec_smi_event { + EC_SMI_EVENT_IDLE = 0x80, +}; + +/* Tell EC to operate in APM mode. Events generate SMIs instead of SCIs */ +static void ec_enter_apm_mode(void) +{ + ec_kbc_write_cmd(0x59); + ec_kbc_write_ib(0xE9); +} +/* Tell EC to operate in ACPI mode, thus generating SCIs on events, not SMIs */ +static void ec_enter_acpi_mode(void) +{ + ec_kbc_write_cmd(0x59); + ec_kbc_write_ib(0xE8); +} + +static uint8_t ec_get_smi_event(void) +{ + ec_kbc_write_cmd(0x56); + return ec_kbc_read_ob(); +} + +static void ec_process_smi(uint8_t src) +{ + /* + * Stub: We aren't processing any events yet, but reading the SMI source + * satisfies the EC in terms of responding to the event. + */ + + printk(BIOS_DEBUG, "EC_SMI event 0x%x\n", src); +} + +static void handle_ec_smi(void) +{ + uint8_t src; + + while ((src = ec_get_smi_event()) != EC_SMI_EVENT_IDLE) + ec_process_smi(src); +} + +int mainboard_smi_apmc(uint8_t data) +{ + switch (data) { + case ACPI_SMI_CMD_ENABLE: + printk(BIOS_DEBUG, "Enable ACPI mode\n"); + ec_enter_acpi_mode(); + break; + case ACPI_SMI_CMD_DISABLE: + printk(BIOS_DEBUG, "Disable ACPI mode\n"); + ec_enter_apm_mode(); + break; + default: + printk(BIOS_DEBUG, "Unhandled ACPI command: 0x%x\n", data); + } + return 0; +} + +void mainboard_smi_gpi(uint32_t gpi_sts) +{ + if (gpi_sts & (1 << EC_SMI_GEVENT)) + handle_ec_smi(); +} |