[coreboot-gerrit] Change in coreboot[master]: superio/nuvoton/nct6776/acpi: Add parallel port support
Tristan Corrick (Code Review)
gerrit at coreboot.org
Thu Aug 2 09:57:55 CEST 2018
Tristan Corrick has uploaded this change for review. ( https://review.coreboot.org/27795
Change subject: superio/nuvoton/nct6776/acpi: Add parallel port support
......................................................................
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 at corrick.kiwi>
---
M src/superio/nuvoton/nct6776/acpi/superio.asl
1 file changed, 30 insertions(+), 0 deletions(-)
git pull ssh://review.coreboot.org:29418/coreboot refs/changes/95/27795/1
diff --git a/src/superio/nuvoton/nct6776/acpi/superio.asl b/src/superio/nuvoton/nct6776/acpi/superio.asl
index b985115..980eab9 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 @@
PNP_IRQ0, 8, /* First IRQ */
Offset (0x72),
PNP_IRQ1, 8, /* Second IRQ */
+ Offset (0x74),
+ PNP_DMA0, 8, /* DRQ */
}
Method (_CRS)
@@ -107,6 +111,32 @@
#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
--
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Gerrit-Project: coreboot
Gerrit-Branch: master
Gerrit-MessageType: newchange
Gerrit-Change-Id: I2529a074e24433d093ad0650a45c7b29238620f3
Gerrit-Change-Number: 27795
Gerrit-PatchSet: 1
Gerrit-Owner: Tristan Corrick <tristan at corrick.kiwi>
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