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| author | Tristan Corrick <tristan@corrick.kiwi> | 2018-08-01 02:55:09 +1200 |
|---|---|---|
| committer | Felix Held <felix-coreboot@felixheld.de> | 2018-08-03 11:18:03 +0000 |
| commit | 19961a4b1b5e8d78855c80740528042e47cf899f (patch) | |
| tree | 54af0669bff316b7f19f9909d200a08371c009ff /src/superio | |
| parent | ad691ad65d08f3e54f003fd8794266cf2e0fd1e9 (diff) | |
| download | coreboot-19961a4b1b5e8d78855c80740528042e47cf899f.tar.xz | |
superio/nuvoton/nct6776/acpi: Add parallel port support
Exposing the parallel port via ACPI causes Linux to automatically detect
the parallel port and load the appropriate modules. Tested on an ASUS
P8H61-M LX with Linux 4.9.110 and 4.17.8.
However, no parallel port device has been tested.
Change-Id: I2529a074e24433d093ad0650a45c7b29238620f3
Signed-off-by: Tristan Corrick <tristan@corrick.kiwi>
Reviewed-on: https://review.coreboot.org/27795
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Diffstat (limited to 'src/superio')
| -rw-r--r-- | src/superio/nuvoton/nct6776/acpi/superio.asl | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/src/superio/nuvoton/nct6776/acpi/superio.asl b/src/superio/nuvoton/nct6776/acpi/superio.asl index b985115111..980eab9cf8 100644 --- a/src/superio/nuvoton/nct6776/acpi/superio.asl +++ b/src/superio/nuvoton/nct6776/acpi/superio.asl @@ -23,6 +23,7 @@ * devices, disabling and reenabling logical devices. * * LDN State + * 0x1 PP Implemented, untested * 0x2 SP1 Implemented, untested * 0x5 KBC Implemented, untested * 0x8 GPIO Implemented, untested @@ -31,6 +32,7 @@ * Controllable through preprocessor defines: * SUPERIO_DEV Device identifier for this SIO (e.g. SIO0) * SUPERIO_PNP_BASE I/O address of the first PnP configuration register + * NCT6776_SHOW_PP If defined, the parallel port will be exposed. * NCT6776_SHOW_SP1 If defined, Serial Port 1 will be exposed. * NCT6776_SHOW_KBC If defined, the Keyboard Controller will be exposed. * NCT6776_SHOW_GPIO If defined, GPIO support will be exposed. @@ -85,6 +87,8 @@ Device(SUPERIO_DEV) { PNP_IRQ0, 8, /* First IRQ */ Offset (0x72), PNP_IRQ1, 8, /* Second IRQ */ + Offset (0x74), + PNP_DMA0, 8, /* DRQ */ } Method (_CRS) @@ -107,6 +111,32 @@ Device(SUPERIO_DEV) { #define PNP_EXIT_MAGIC_1ST 0xaa #include <superio/acpi/pnp_config.asl> +#ifdef NCT6776_SHOW_PP + #undef SUPERIO_PNP_HID + #undef SUPERIO_PNP_LDN + #undef SUPERIO_PNP_DDN + #undef SUPERIO_PNP_PM_REG + #undef SUPERIO_PNP_PM_VAL + #undef SUPERIO_PNP_PM_LDN + #undef SUPERIO_PNP_IO0 + #undef SUPERIO_PNP_IO1 + #undef SUPERIO_PNP_IO2 + #undef SUPERIO_PNP_IRQ0 + #undef SUPERIO_PNP_IRQ1 + #undef SUPERIO_PNP_DMA + /* + * The extra code required to dynamically reflect ECP in the HID + * isn't currently justified, so the HID is hardcoded as not + * using ECP. "PNP0401" would indicate ECP. + */ + #define SUPERIO_PNP_HID "PNP0400" + #define SUPERIO_PNP_LDN 1 + #define SUPERIO_PNP_IO0 0x08, 0x08 + #define SUPERIO_PNP_IRQ0 + #define SUPERIO_PNP_DMA + #include <superio/acpi/pnp_generic.asl> +#endif + #ifdef NCT6776_SHOW_SP1 #undef SUPERIO_UART_LDN #undef SUPERIO_UART_DDN |