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authorNico Huber <nico.huber@secunet.com>2013-05-24 13:48:26 +0200
committerStefan Reinauer <stefan.reinauer@coreboot.org>2013-06-11 00:14:00 +0200
commit73b7632ad4e03cdd3d161ea928c10d79e11ebca9 (patch)
treeeb78f55af397546ef956b9bed284b7d5911e226e /src
parentae7c96889f3fb6aec5909bec7c7d77377ab59cc9 (diff)
downloadcoreboot-73b7632ad4e03cdd3d161ea928c10d79e11ebca9.tar.xz
winbond/w83627dhg: Add ACPI support
This is loosely based on Christoph Grenz' ACPI code for the W83627HF and makes use of the PnP super i/o ACPI framework. Change-Id: I5e1cd09b83c0041f440562d2a1b73e4560589cb7 Signed-off-by: Nico Huber <nico.huber@secunet.com> Reviewed-on: http://review.coreboot.org/3288 Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Diffstat (limited to 'src')
-rw-r--r--src/superio/winbond/w83627dhg/acpi/superio.asl196
1 files changed, 196 insertions, 0 deletions
diff --git a/src/superio/winbond/w83627dhg/acpi/superio.asl b/src/superio/winbond/w83627dhg/acpi/superio.asl
new file mode 100644
index 0000000000..417d6fe41c
--- /dev/null
+++ b/src/superio/winbond/w83627dhg/acpi/superio.asl
@@ -0,0 +1,196 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2011 Christoph Grenz <christophg+cb@grenz-bonn.de>
+ * Copyright (C) 2013 secunet Security Networks AG
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/*
+ * Include this file into a mainboard's DSDT _SB device tree and it will
+ * expose the W83627DHG SuperIO and some of its functionality.
+ *
+ * It allows the change of IO ports, IRQs and DMA settings on logical
+ * devices, disabling and reenabling logical devices and controlling power
+ * saving mode on logical devices or the whole chip.
+ *
+ * LDN State
+ * 0x0 FDC Not implemented
+ * 0x1 PP Not implemented
+ * 0x2 UARTA Implemented, partially tested
+ * 0x3 UARTB UART only, partially tested
+ * 0x5 KBC Implemented, untested
+ * 0x6 SPI Not implemented
+ * 0x7 GPIO6 Not implemented
+ * 0x8 WDT0&PLED Not implemented
+ * 0x9 GPIO2-5 Not implemented
+ * 0xa ACPI Not implemented
+ * 0xb HWM Resources, PM only
+ * 0xc PECI&SST Not implemented
+ *
+ * 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
+ * W83627DHG_SHOW_UARTA If defined, UARTA will be exposed.
+ * W83627DHG_SHOW_UARTB If defined, UARTB will be exposed.
+ * W83627DHG_SHOW_KBC If defined, the KBC will be exposed.
+ * W83627DHG_SHOW_PS2M If defined, PS/2 mouse support will be exposed.
+ * W83627DHG_SHOW_HWMON If defined, the hardware monitor will be exposed.
+ */
+
+#undef SUPERIO_CHIP_NAME
+#define SUPERIO_CHIP_NAME W83627DHG
+#include <superio/acpi/pnp.asl>
+
+Device(SUPERIO_DEV) {
+ Name (_HID, EisaId("PNP0A05"))
+ Name (_STR, Unicode("Winbond W83627DHG Super I/O"))
+ Name (_UID, SUPERIO_UID(SUPERIO_DEV,))
+
+ /* Mutex for accesses to the configuration ports */
+ Mutex(CRMX, 1)
+
+ /* SuperIO configuration ports */
+ OperationRegion (CREG, SystemIO, SUPERIO_PNP_BASE, 0x02)
+ Field (CREG, ByteAcc, NoLock, Preserve)
+ {
+ PNP_ADDR_REG, 8,
+ PNP_DATA_REG, 8
+ }
+ IndexField (ADDR, DATA, ByteAcc, NoLock, Preserve)
+ {
+ Offset (0x07),
+ PNP_LOGICAL_DEVICE, 8, /* Logical device selector */
+
+ Offset (0x22),
+ FDPW, 1, /* FDC Power Down */
+ , 2,
+ PRPW, 1, /* PRT Power Down */
+ UAPW, 1, /* UART A Power Down */
+ UBPW, 1, /* UART B Power Down */
+ HWPW, 1, /* HWM Power Down */
+ Offset (0x23),
+ IPD, 1, /* Immediate Chip Power Down */
+
+ Offset (0x30),
+ PNP_DEVICE_ACTIVE, 1, /* Logical device activation */
+
+ Offset (0x60),
+ PNP_IO0_HIGH_BYTE, 8, /* First I/O port base - high byte */
+ PNP_IO0_LOW_BYTE, 8, /* First I/O port base - low byte */
+ Offset (0x62),
+ PNP_IO1_HIGH_BYTE, 8, /* Second I/O port base - high byte */
+ PNP_IO1_LOW_BYTE, 8, /* Second I/O port base - low byte */
+
+ Offset (0x70),
+ PNP_IRQ0, 8, /* First IRQ */
+ Offset (0x72),
+ PNP_IRQ1, 8, /* Second IRQ */
+
+ Offset (0x74),
+ PNP_DMA0, 8, /* DMA */
+ }
+
+ Method (_CRS)
+ {
+ /* Announce the used i/o ports to the OS */
+ Return (ResourceTemplate () {
+ IO (Decode16, SUPERIO_PNP_BASE, SUPERIO_PNP_BASE, 0x01, 0x02)
+ })
+ }
+
+ #undef PNP_ENTER_MAGIC_1ST
+ #undef PNP_ENTER_MAGIC_2ND
+ #undef PNP_ENTER_MAGIC_3RD
+ #undef PNP_EXIT_MAGIC_1ST
+ #define PNP_ENTER_MAGIC_1ST 0x87
+ #define PNP_ENTER_MAGIC_2ND 0x87
+ #define PNP_EXIT_MAGIC_1ST 0xaa
+ #include <superio/acpi/pnp_config.asl>
+
+ /* PM: indicate IPD (Immediate Power Down) bit state as D0/D2 */
+ Method (_PSC) {
+ ENTER_CONFIG_MODE (PNP_NO_LDN_CHANGE)
+ Store (IPD, Local0)
+ EXIT_CONFIG_MODE ()
+ If (Local0) { Return (2) }
+ Else { Return (0) }
+ }
+
+ /* PM: Switch to D0 by setting IPD low */
+ Method (_PS0) {
+ ENTER_CONFIG_MODE (PNP_NO_LDN_CHANGE)
+ Store (Zero, IPD)
+ EXIT_CONFIG_MODE ()
+ }
+
+ /* PM: Switch to D2 by setting IPD high */
+ Method (_PS2) {
+ ENTER_CONFIG_MODE (PNP_NO_LDN_CHANGE)
+ Store (One, IPD)
+ EXIT_CONFIG_MODE ()
+ }
+
+#ifdef W83627DHG_SHOW_UARTA
+ #undef SUPERIO_UART_LDN
+ #undef SUPERIO_UART_DDN
+ #undef SUPERIO_UART_PM_REG
+ #undef SUPERIO_UART_PM_LDN
+ #define SUPERIO_UART_LDN 2
+ #define SUPERIO_UART_PM_REG UAPW
+ #define SUPERIO_UART_PM_LDN PNP_NO_LDN_CHANGE
+ #include <superio/acpi/pnp_uart.asl>
+#endif
+
+#ifdef W83627DHG_SHOW_UARTB
+ #undef SUPERIO_UART_LDN
+ #undef SUPERIO_UART_DDN
+ #undef SUPERIO_UART_PM_REG
+ #undef SUPERIO_UART_PM_LDN
+ #define SUPERIO_UART_LDN 3
+ #define SUPERIO_UART_PM_REG UBPW
+ #define SUPERIO_UART_PM_LDN PNP_NO_LDN_CHANGE
+ #include <superio/acpi/pnp_uart.asl>
+#endif
+
+#ifdef W83627DHG_SHOW_KBC
+ #undef SUPERIO_KBC_LDN
+ #undef SUPERIO_KBC_PS2M
+ #undef SUPERIO_KBC_PS2LDN
+ #define SUPERIO_KBC_LDN 5
+#ifdef W83627DHG_SHOW_PS2M
+ #define SUPERIO_KBC_PS2M 1
+#endif
+ #include <superio/acpi/pnp_kbc.asl>
+#endif
+
+#ifdef W83627DHG_SHOW_HWMON
+ #undef SUPERIO_PNP_LDN
+ #undef SUPERIO_PNP_DDN
+ #undef SUPERIO_PNP_PM_REG
+ #undef SUPERIO_PNP_PM_LDN
+ #undef SUPERIO_PNP_IO0
+ #undef SUPERIO_PNP_IO1
+ #undef SUPERIO_PNP_IRQ0
+ #undef SUPERIO_PNP_IRQ1
+ #undef SUPERIO_PNP_DMA
+ #define SUPERIO_PNP_LDN 11
+ #define SUPERIO_PNP_PM_REG HWPW
+ #define SUPERIO_PNP_PM_LDN PNP_NO_LDN_CHANGE
+ #define SUPERIO_PNP_IO0 0x08, 0x08
+ #define SUPERIO_PNP_IRQ0 1
+ #include <superio/acpi/pnp_generic.asl>
+#endif
+}