diff options
| author | Bin Meng <bmeng.cn@gmail.com> | 2016-05-11 07:45:11 -0700 |
|---|---|---|
| committer | Bin Meng <bmeng.cn@gmail.com> | 2016-05-23 15:18:00 +0800 |
| commit | 7bfe0da4d21a1f62d65210779b073d8ff2e1ab33 (patch) | |
| tree | b0da2fc62e1a341975167768ae6230f630808cfd /arch/x86 | |
| parent | fa427438bd3f0e2d8a6dfd0f721f52aa950b52ee (diff) | |
| download | blackbird-obmc-uboot-7bfe0da4d21a1f62d65210779b073d8ff2e1ab33.tar.gz blackbird-obmc-uboot-7bfe0da4d21a1f62d65210779b073d8ff2e1ab33.zip | |
x86: baytrail: Add GPIO ASL description
Since BayTrail, Intel starts to use new GPIO IPs in their chipset.
This adds the GPIO ASL, so that OS can load corresponding drivers
for it. On Linux, this is BayTrail pinctrl driver.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/include/asm/arch-baytrail/acpi/gpio.asl | 95 | ||||
| -rw-r--r-- | arch/x86/include/asm/arch-baytrail/acpi/platform.asl | 3 |
2 files changed, 98 insertions, 0 deletions
diff --git a/arch/x86/include/asm/arch-baytrail/acpi/gpio.asl b/arch/x86/include/asm/arch-baytrail/acpi/gpio.asl new file mode 100644 index 0000000000..ef340f3d7b --- /dev/null +++ b/arch/x86/include/asm/arch-baytrail/acpi/gpio.asl @@ -0,0 +1,95 @@ +/* + * Copyright (C) 2013 Google Inc. + * Copyright (C) 2016 Bin Meng <bmeng.cn@gmail.com> + * + * Modified from coreboot src/soc/intel/baytrail/acpi/gpio.asl + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +/* SouthCluster GPIO */ +Device (GPSC) +{ + Name(_HID, "INT33FC") + Name(_CID, "INT33FC") + Name(_UID, 1) + + Name(RBUF, ResourceTemplate() + { + Memory32Fixed(ReadWrite, 0, 0x1000, RMEM) + Interrupt(ResourceConsumer, Level, ActiveLow, Shared, , ,) + { + GPIO_SC_IRQ + } + }) + + Method(_CRS) + { + CreateDwordField(^RBUF, ^RMEM._BAS, RBAS) + Add(IO_BASE_ADDRESS, IO_BASE_OFFSET_GPSCORE, RBAS) + Return (^RBUF) + } + + Method(_STA) + { + Return (STA_VISIBLE) + } +} + +/* NorthCluster GPIO */ +Device (GPNC) +{ + Name(_HID, "INT33FC") + Name(_CID, "INT33FC") + Name(_UID, 2) + + Name(RBUF, ResourceTemplate() + { + Memory32Fixed(ReadWrite, 0, 0x1000, RMEM) + Interrupt(ResourceConsumer, Level, ActiveLow, Shared, , ,) + { + GPIO_NC_IRQ + } + }) + + Method(_CRS) + { + CreateDwordField(^RBUF, ^RMEM._BAS, RBAS) + Add(IO_BASE_ADDRESS, IO_BASE_OFFSET_GPNCORE, RBAS) + Return (^RBUF) + } + + Method(_STA) + { + Return (STA_VISIBLE) + } +} + +/* SUS GPIO */ +Device (GPSS) +{ + Name(_HID, "INT33FC") + Name(_CID, "INT33FC") + Name(_UID, 3) + + Name(RBUF, ResourceTemplate() + { + Memory32Fixed(ReadWrite, 0, 0x1000, RMEM) + Interrupt(ResourceConsumer, Level, ActiveLow, Shared, , ,) + { + GPIO_SUS_IRQ + } + }) + + Method(_CRS) + { + CreateDwordField(^RBUF, ^RMEM._BAS, RBAS) + Add(IO_BASE_ADDRESS, IO_BASE_OFFSET_GPSSUS, RBAS) + Return (^RBUF) + } + + Method(_STA) + { + Return (STA_VISIBLE) + } +} diff --git a/arch/x86/include/asm/arch-baytrail/acpi/platform.asl b/arch/x86/include/asm/arch-baytrail/acpi/platform.asl index bd72842dd6..6bc82ecfe1 100644 --- a/arch/x86/include/asm/arch-baytrail/acpi/platform.asl +++ b/arch/x86/include/asm/arch-baytrail/acpi/platform.asl @@ -27,6 +27,9 @@ Method(_WAK, 1) Scope (\_SB) { #include "southcluster.asl" + + /* ACPI devices */ + #include "gpio.asl" } /* Chipset specific sleep states */ |
