This patch series requires the fixed-clock patches from Hanjun Guo.
Provides an ACPI module to probe ARM AMBA devices that have a
hardware ID, which is used with struct amba_device to match up
the appropriate driver.
See required DSDT definition format below.
Brandon Anderson (4):
early fixed-clock
AMBA bus ACPI implementation
Add ACPI to AMBA SPI driver
remove unneeded sections of DTS definition
arch/arm64/boot/dts/foundation-v8-acpi.dts | 10 +-
arch/arm64/boot/dts/rtsm_ve-aemv8a-acpi.dts | 4 +
arch/arm64/boot/dts/rtsm_ve-motherboard-acpi.dtsi | 8 +
drivers/acpi/acpi_platform.c | 2 +
drivers/amba/Makefile | 2 +-
drivers/amba/acpi.c | 339 +++++++++++++++++++++
drivers/clk/clk-fixed-rate.c | 2 +-
drivers/spi/spi-pl022.c | 49 +++
include/linux/amba/acpi.h | 29 ++
9 files changed, 440 insertions(+), 5 deletions(-)
create mode 100644 drivers/amba/acpi.c
create mode 100644 include/linux/amba/acpi.h
--
1.7.9.5
-----------
diff --git a/platforms/rtsm_ve-aemv8a.acpi/dsdt.asl b/platforms/rtsm_ve-aemv8a.acpi/dsdt.asl
index 0bcc94d..64e84a4 100644
--- a/platforms/rtsm_ve-aemv8a.acpi/dsdt.asl
+++ b/platforms/rtsm_ve-aemv8a.acpi/dsdt.asl
@@ -252,6 +252,33 @@ DefinitionBlock (
}
}
+ Device (CLK0) {
+ Name (_HID, "LINA0008")
+ Name (_UID, 0)
+
+ Method (FREQ, 0x0, NotSerialized) {
+ Return (24000000)
+ }
+ }
+
+ Device (CLK1) {
+ Name (_HID, "LINA0008")
+ Name (_UID, 1)
+
+ Method (FREQ, 0x0, NotSerialized) {
+ Return (1000000)
+ }
+ }
+
+ Device (CLK2) {
+ Name (_HID, "LINA0008")
+ Name (_UID, 2)
+
+ Method (FREQ, 0x0, NotSerialized) {
+ Return (32768)
+ }
+ }
+
Device (PMU0) {
Name (_HID, "LINA0007")
Name (_UID, 0)
@@ -263,5 +290,229 @@ DefinitionBlock (
Return (RBUF)
}
}
+
+ Method (DTGP, 5, NotSerialized)
+ {
+ If (LEqual (Arg0, Buffer (0x10)
+ {
+ /* UUID: a706b112-bf0b-48d2-9fa3-95591a3c4c06 */
+ /* 0000 */ 0xa7, 0x06, 0xb1, 0x12, 0xbf, 0x0b, 0x48, 0xd2,
+ /* 0008 */ 0x9f, 0xa3, 0x95, 0x59, 0x1a, 0x3c, 0x4c, 0x06
+ }))
+ {
+ If (LEqual (Arg1, 0x01))
+ {
+ If (LEqual (Arg2, 0x00))
+ {
+ Store (Buffer (0x01)
+ {
+ 0x03
+ }, Arg4)
+ Return (0x01)
+ }
+
+ If (LEqual (Arg2, 0x01))
+ {
+ Return (0x01)
+ }
+ }
+ }
+
+ Store (Buffer (0x01)
+ {
+ 0x00
+ }, Arg4)
+ Return (0x00)
+ }
+
+ Device (AMBA) {
+ Name (_HID, "AMBA0000") /* the parallel to "arm,primecell" in DTS */
+ Name (_UID, 0)
+
+ /* Define 'apb_pclk' as a default clock source since it is
+ common with devices below */
+ Method(_DSM, 4, NotSerialized) {
+ Store (Package (2)
+ {
+ "clock-name", "apb_pclk \\_SB.CLK0",
+ }, Local0)
+
+ DTGP (Arg0, Arg1, Arg2, Arg3, RefOf (Local0))
+
+ Return (Local0)
+ }
+
+ Device (SCT0) {
+ Name (_ADR, 0x1c020000) /* SYSCTL */
+ Method (_CRS, 0x0, Serialized) {
+ Name (RBUF, ResourceTemplate () {
+ Memory32Fixed (ReadWrite, 0x1c020000, 0x00001000)
+ })
+ Return (RBUF)
+ }
+ Method(_DSM, 4, Serialized) {
+ Store (Package (4)
+ {
+ "clock-name", "refclk \\_SB.CLK2",
+ "clock-name", "timclk \\_SB.CLK1",
+ }, Local0)
+
+ DTGP (Arg0, Arg1, Arg2, Arg3, RefOf (Local0))
+
+ Return (Local0)
+ }
+ }
+
+ Device (KMI0) {
+ Name (_ADR, 0x1c060000)
+ Method (_CRS, 0x0, Serialized) {
+ Name (RBUF, ResourceTemplate () {
+ Memory32Fixed (ReadWrite, 0x1c060000, 0x00001000)
+ Interrupt (ResourceConsumer, Edge, ActiveBoth,
+ Exclusive, , , ) {44}
+ })
+ Return (RBUF)
+ }
+ Method(_DSM, 4, Serialized) {
+ Store (Package (2)
+ {
+ "clock-name", "KMIREFCLK \\_SB.CLK0",
+ }, Local0)
+
+ DTGP (Arg0, Arg1, Arg2, Arg3, RefOf (Local0))
+
+ Return (Local0)
+ }
+ }
+
+ Device (KMI1) {
+ Name (_ADR, 0x1c070000)
+ Method (_CRS, 0x0, Serialized) {
+ Name (RBUF, ResourceTemplate () {
+ Memory32Fixed (ReadWrite, 0x1c070000, 0x00001000)
+ Interrupt (ResourceConsumer, Edge, ActiveBoth,
+ Exclusive, , , ) {45}
+ })
+ Return (RBUF)
+ }
+ Method(_DSM, 4, NotSerialized) {
+ Store (Package (2)
+ {
+ "clock-name", "KMIREFCLK \\_SB.CLK0",
+ }, Local0)
+
+ DTGP (Arg0, Arg1, Arg2, Arg3, RefOf (Local0))
+
+ Return (Local0)
+ }
+ }
+
+ Device (SER0) {
+ Name (_ADR, 0x1c090000) /* UART0 */
+ Method (_CRS, 0x0, Serialized) {
+ Name (RBUF, ResourceTemplate () {
+ Memory32Fixed (ReadWrite, 0x1c090000, 0x00001000)
+ Interrupt (ResourceConsumer, Edge, ActiveBoth,
+ Exclusive, , , ) {37}
+ })
+ Return (RBUF)
+ }
+ }
+
+ Device (SER1) {
+ Name (_ADR, 0x1c0a0000) /* UART1 */
+ Method (_CRS, 0x0, Serialized) {
+ Name (RBUF, ResourceTemplate () {
+ Memory32Fixed (ReadWrite, 0x1c0a0000, 0x00001000)
+ Interrupt (ResourceConsumer, Edge, ActiveBoth,
+ Exclusive, , , ) {38}
+ })
+ Return (RBUF)
+ }
+ }
+ Device (SER2) {
+ Name (_ADR, 0x1c0b0000) /* UART2 */
+ Method (_CRS, 0x0, Serialized) {
+ Name (RBUF, ResourceTemplate () {
+ Memory32Fixed (ReadWrite, 0x1c0b0000, 0x00001000)
+ Interrupt (ResourceConsumer, Edge, ActiveBoth,
+ Exclusive, , , ) {39}
+ })
+ Return (RBUF)
+ }
+ }
+
+ Device (SER3) {
+ Name (_ADR, 0x1c0c0000) /* UART3 */
+ Method (_CRS, 0x0, Serialized) {
+ Name (RBUF, ResourceTemplate () {
+ Memory32Fixed (ReadWrite, 0x1c0c0000, 0x00001000)
+ Interrupt (ResourceConsumer, Edge, ActiveBoth,
+ Exclusive, , , ) {40}
+ })
+ Return (RBUF)
+ }
+ }
+
+ Device (AAC0) {
+ Name (_ADR, 0x1c040000) /* AACI */
+ Method (_CRS, 0x0, Serialized) {
+ Name (RBUF, ResourceTemplate () {
+ Memory32Fixed (ReadWrite, 0x1c040000, 0x00001000)
+ Interrupt (ResourceConsumer, Edge, ActiveBoth,
+ Exclusive, , , ) {43}
+ })
+ Return (RBUF)
+ }
+ }
+
+ Device (WDT0) {
+ Name (_ADR, 0x1c0f0000) /* WDT */
+ Method (_CRS, 0x0, Serialized) {
+ Name (RBUF, ResourceTemplate () {
+ Memory32Fixed (ReadWrite, 0x1c0f0000, 0x00001000)
+ Interrupt (ResourceConsumer, Edge, ActiveBoth,
+ Exclusive, , , ) {32}
+ })
+ Return (RBUF)
+ }
+ }
+
+ Device (TIM0) {
+ Name (_ADR, 0x1c110000) /* TIMER01 */
+ Method (_CRS, 0x0, Serialized) {
+ Name (RBUF, ResourceTemplate () {
+ Memory32Fixed (ReadWrite, 0x1c110000, 0x00001000)
+ Interrupt (ResourceConsumer, Edge, ActiveBoth,
+ Exclusive, , , ) {34}
+ })
+ Return (RBUF)
+ }
+ }
+
+ Device (TIM2) {
+ Name (_ADR, 0x1c120000) /* TIMER23 */
+ Method (_CRS, 0x0, Serialized) {
+ Name (RBUF, ResourceTemplate () {
+ Memory32Fixed (ReadWrite, 0x1c120000, 0x00001000)
+ Interrupt (ResourceConsumer, Edge, ActiveBoth,
+ Exclusive, , , ) {35}
+ })
+ Return (RBUF)
+ }
+ }
+
+ Device (RTC0) {
+ Name (_ADR, 0x1c170000) /* RTC */
+ Method (_CRS, 0x0, Serialized) {
+ Name (RBUF, ResourceTemplate () {
+ Memory32Fixed (ReadWrite, 0x1c170000, 0x00001000)
+ Interrupt (ResourceConsumer, Edge, ActiveBoth,
+ Exclusive, , , ) {36}
+ })
+ Return (RBUF)
+ }
+ }
+ }
}
}
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