Linaro-acpi

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[RFC part1 PATCH 0/7] Make ACPI core running on ARM64

by Hanjun Guo

This is the first part of making ACPI core running on ARM. PCI is optional on ARM64 but ACPI is dependent on PCI now, so in the first patch we try to make ACPI can be running without PCI. _PDC is requred for ACPI processor_core.c, but its related code is a little bit x86/ia64 dependent, so I rework _PDC related staff to make it more arch independent, and then introduce the skeleton of _PDC related for ARM64, it should be fully implemented after ACPI spec is ready for processor idle control. After that, arm-core.c is introduced so we can get ACPI table from UEFI, then we can parsed for SMP initialisation, GIC initialisation and for ACPI drivers. This patch set is based on: git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git origin/linux-next branch and plus Al Stone's v2 reduced hardware profile patch. Hanjun Guo (7): ACPI: Make ACPI core running without PCI on ARM64 ARM64 : Add dummy asm/cpu.h ACPI / processor_core: Rework _PDC related stuff to make it more arch-independent ARM64 / ACPI: Introduce the skeleton of _PDC related for ARM64 ARM64 / ACPI: Introduce arm_core.c and its related head file ARM64 / ACPI: Introduce lowlevel suspend function ARM64 / ACPI: Enable ARM64 in Kconfig arch/arm64/Kconfig | 2 + arch/arm64/include/asm/acpi.h | 93 +++++++++++++++ arch/arm64/include/asm/cpu.h | 25 ++++ arch/arm64/include/asm/processor.h | 11 ++ arch/arm64/kernel/process.c | 5 + arch/arm64/kernel/setup.c | 8 ++ drivers/acpi/Kconfig | 12 +- drivers/acpi/Makefile | 4 +- drivers/acpi/internal.h | 5 + drivers/acpi/osl.c | 16 +++ drivers/acpi/plat/Makefile | 1 + drivers/acpi/plat/arm-core.c | 226 ++++++++++++++++++++++++++++++++++++ drivers/acpi/processor_core.c | 27 ++--- drivers/acpi/reboot.c | 47 +++++--- drivers/pnp/pnpacpi/rsparser.c | 2 + 15 files changed, 452 insertions(+), 32 deletions(-) create mode 100644 arch/arm64/include/asm/acpi.h create mode 100644 arch/arm64/include/asm/cpu.h create mode 100644 drivers/acpi/plat/Makefile create mode 100644 drivers/acpi/plat/arm-core.c -- 1.7.9.5

10 years, 11 months

[PATCH] foundation v8:Fix PNPID for serial

by naresh.bhat＠linaro.org

From: Naresh Bhat <naresh.bhat(a)linaro.org> Use the official PNPID as LNRO for serial devices. Signed-off-by: Naresh Bhat <naresh.bhat(a)linaro.org> --- platforms/foundation-v8.acpi/dsdt.asl | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/platforms/foundation-v8.acpi/dsdt.asl b/platforms/foundation-v8.acpi/dsdt.asl index 777ae48..0d2ccd5 100644 --- a/platforms/foundation-v8.acpi/dsdt.asl +++ b/platforms/foundation-v8.acpi/dsdt.asl @@ -469,7 +469,7 @@ DefinitionBlock ( } Device (SER0) { - Name (_HID, "LINA000A") + Name (_HID, "LNRO000A") Name (_ADR, 0x1c090000) Name (_UID, 0) @@ -483,7 +483,7 @@ DefinitionBlock ( } Device (SER1) { - Name (_HID, "LINA000A") + Name (_HID, "LNRO000A") Name (_ADR, 0x1c0a0000) Name (_UID, 1) @@ -497,7 +497,7 @@ DefinitionBlock ( } Device (SER2) { - Name (_HID, "LINA000A") + Name (_HID, "LNRO000A") Name (_ADR, 0x1c0b0000) Name (_UID, 2) @@ -511,7 +511,7 @@ DefinitionBlock ( } Device (SER3) { - Name (_HID, "LINA000A") + Name (_HID, "LNRO000A") Name (_ADR, 0x1c0c0000) Name (_UID, 3) -- 1.7.9.5

10 years, 11 months

[PATCH] switch PNPID to the official LNRO from temporary LINA

by Graeme Gregory

Signed-off-by: Graeme Gregory <graeme.gregory(a)linaro.org> --- platforms/exynos5250-arndale.acpi/dsdt.asl | 2 +- platforms/foundation-v8.acpi/dsdt.asl | 14 +++++++------- platforms/rtsm_ve-aemv8a.acpi/dsdt.asl | 4 ++-- 3 files changed, 10 insertions(+), 10 deletions(-) diff --git a/platforms/exynos5250-arndale.acpi/dsdt.asl b/platforms/exynos5250-arndale.acpi/dsdt.asl index cc4f2ab..c21d52b 100644 --- a/platforms/exynos5250-arndale.acpi/dsdt.asl +++ b/platforms/exynos5250-arndale.acpi/dsdt.asl @@ -47,7 +47,7 @@ DefinitionBlock ( } Device (I2C) { - Name (_HID, "LINA0001") + Name (_HID, "LNRO0001") Name (_UID, 0) Method (_CRS, 0x0, Serialized) { diff --git a/platforms/foundation-v8.acpi/dsdt.asl b/platforms/foundation-v8.acpi/dsdt.asl index 0660dbf..777ae48 100644 --- a/platforms/foundation-v8.acpi/dsdt.asl +++ b/platforms/foundation-v8.acpi/dsdt.asl @@ -268,7 +268,7 @@ DefinitionBlock ( } Device (PMU0) { - Name (_HID, "LINA0007") + Name (_HID, "LNRO0007") Name (_UID, 0) Method (_CRS, 0x0, Serialized) { @@ -336,7 +336,7 @@ DefinitionBlock ( }) Device (NET0) { - Name (_HID, "LINA0003") + Name (_HID, "LNRO0003") Name (_UID, 0) Method (_CRS, 0x0, Serialized) { @@ -349,7 +349,7 @@ DefinitionBlock ( } Device (CLK0) { - Name (_HID, "LINA0008") + Name (_HID, "LNRO0008") Name (_UID, 0) Method (FREQ, 0x0, NotSerialized) { @@ -358,7 +358,7 @@ DefinitionBlock ( } Device (CLK1) { - Name (_HID, "LINA0008") + Name (_HID, "LNRO0008") Name (_UID, 1) Method (FREQ, 0x0, NotSerialized) { @@ -367,7 +367,7 @@ DefinitionBlock ( } Device (CLK2) { - Name (_HID, "LINA0008") + Name (_HID, "LNRO0008") Name (_UID, 2) Method (FREQ, 0x0, NotSerialized) { @@ -391,7 +391,7 @@ DefinitionBlock ( }) Device (SREG) { - Name (_HID, "LINA0009") + Name (_HID, "LNRO0009") Name (_UID, 0) Method (_CRS, 0x0, Serialized) { @@ -403,7 +403,7 @@ DefinitionBlock ( } Device (VIRT) { - Name (_HID, "LINA0005") + Name (_HID, "LNRO0005") Name (_UID, 0) Method (_CRS, 0x0, Serialized) { diff --git a/platforms/rtsm_ve-aemv8a.acpi/dsdt.asl b/platforms/rtsm_ve-aemv8a.acpi/dsdt.asl index f74b69b..76ddfa3 100644 --- a/platforms/rtsm_ve-aemv8a.acpi/dsdt.asl +++ b/platforms/rtsm_ve-aemv8a.acpi/dsdt.asl @@ -267,7 +267,7 @@ DefinitionBlock ( } Device (NET0) { - Name (_HID, "LINA0003") + Name (_HID, "LNRO0003") Name (_UID, 0) Method (_CRS, 0x0, Serialized) { @@ -280,7 +280,7 @@ DefinitionBlock ( } Device (PMU0) { - Name (_HID, "LINA0007") + Name (_HID, "LNRO0007") Name (_UID, 0) Method (_CRS, 0x0, Serialized) { -- 1.8.3.1

10 years, 11 months

[PATCH v2 0/7] BOZO cleanup

by al.stone＠linaro.org

From: Al Stone <al.stone(a)linaro.org> These patches are a bit of all over the place. Each of them cleans up or removes BOZO comments that have been in the ACPI ARM port from the very early days of the port (I inserted the BOZO comments when it was not clear what needed to be done but I could temporarily hack around a problem). Removing each of those had all sorts of different changes needed, from the simplest (the comment turns out to be wrong in hindsight), to stubbing out or even removing functions that make no sense on an ARMv7/v8 platform. Changes for v2: -- Simplification by using kernel config items to exclude code versus obtuse #ifdef logic Al Stone (7): ACPI: ARM: make use of an ACPI blob address in FDT /chosen configurable. ACPI: ARM: Clean up a leftover comment that is no longer pertinent. ACPI: ARM: remove x86 acpi_wakeup_address usage when running on ARM ACPI: ARM: remove unnecessary comments ACPI: ARM: cleanup comments and isolate out x86-specific PAD code ACPI: ARM: stub out PCI configuration call for non-PCI systems ACPI: ARM: stub out processor idle routines for use on non-x86 platforms arch/arm/Kconfig.debug | 11 ++++++ arch/arm/include/asm/acpi.h | 7 ---- arch/arm/include/asm/io.h | 6 +--- arch/arm/include/asm/processor.h | 6 ---- arch/arm64/Kconfig.debug | 11 ++++++ arch/arm64/include/asm/acpi.h | 7 ---- arch/arm64/include/asm/processor.h | 6 ---- drivers/acpi/acpi_pad.c | 15 +++----- drivers/acpi/osl.c | 42 ++++++++++++---------- drivers/acpi/processor_idle.c | 74 +++++++++++++++++++------------------- drivers/acpi/sleep.c | 2 ++ 11 files changed, 91 insertions(+), 96 deletions(-) -- 1.8.3.1 Al Stone (7): ACPI: ARM: make use of an ACPI blob address in FDT /chosen configurable. ACPI: ARM: Clean up a leftover comment that is no longer pertinent. ACPI: ARM: remove x86 acpi_wakeup_address usage when running on ARM ACPI: ARM: remove unnecessary comments ACPI: ARM: clean up comments and disable PAD code for ARM ACPI: ARM: stub out PCI configuration call for non-PCI systems ACPI: ARM: disable x86-specific processor idle code arch/arm/Kconfig.debug | 11 ++++++++++ arch/arm/include/asm/acpi.h | 5 ----- arch/arm/include/asm/io.h | 6 +----- arch/arm/include/asm/processor.h | 6 ------ arch/arm64/Kconfig.debug | 11 ++++++++++ arch/arm64/include/asm/acpi.h | 5 ----- arch/arm64/include/asm/processor.h | 6 ------ drivers/acpi/Kconfig | 5 +++-- drivers/acpi/acpi_pad.c | 17 --------------- drivers/acpi/osl.c | 42 ++++++++++++++++++++++---------------- drivers/acpi/processor_idle.c | 35 ------------------------------- 11 files changed, 50 insertions(+), 99 deletions(-) -- 1.8.3.1

10 years, 11 months

[PATCH 1/2] ACPI: process_idle repair hardware reduced compile issue

by Graeme Gregory

It is not valid to use the acpica macros to try and remove functions they only work on prototypes. Instead just increase the scope of the Signed-off-by: Graeme Gregory <graeme.gregory(a)linaro.org> --- drivers/acpi/processor_idle.c | 16 ++++++++++------ 1 file changed, 10 insertions(+), 6 deletions(-) diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c index 0ff1927..208503d 100644 --- a/drivers/acpi/processor_idle.c +++ b/drivers/acpi/processor_idle.c @@ -218,18 +218,16 @@ static void lapic_timer_state_broadcast(struct acpi_processor *pr, #endif -#ifdef CONFIG_PM_SLEEP -#if (!ACPI_REDUCED_HARDWARE) +#if IS_ENABLED(CONFIG_PM_SLEEP) && !IS_ENABLED(CONFIG_ACPI_REDUCED_HARDWARE) static u32 saved_bm_rld; -#endif -ACPI_HW_DEPENDENT_RETURN_INT(int acpi_processor_suspend(void)) +int acpi_processor_suspend(void) { acpi_read_bit_register(ACPI_BITREG_BUS_MASTER_RLD, &saved_bm_rld); return 0; } -ACPI_HW_DEPENDENT_RETURN_VOID(void acpi_processor_resume(void)) +void acpi_processor_resume(void) { u32 resumed_bm_rld; @@ -254,7 +252,13 @@ void acpi_processor_syscore_exit(void) { unregister_syscore_ops(&acpi_processor_syscore_ops); } -#endif /* CONFIG_PM_SLEEP */ + +#else + +void acpi_processor_syscore_init(void){} +void acpi_processor_syscore_exit(void){} + +#endif /* CONFIG_PM_SLEEP && !CONFIG_ACPI_REDUCED_HARDWARE */ #if defined(CONFIG_X86) static void tsc_check_state(int state) -- 1.8.3.1

10 years, 11 months

[PATCH 00/12] Hardware Reduced Mode cleanup for ACPI

by al.stone＠linaro.org

From: Al Stone <ahs3(a)redhat.com> This series of patches starts with Hanjun's patch to create a kernel config item for CONFIG_ACPI_REDUCED_HARDWARE [0]. Building on that, I then reviewed all of the code that touched any of several fields in the FADT that the OSPM is supposed to ignore when ACPI is in Hardware Reduced mode [1]. Any time there was a use of one of the fields to be ignored, I evaluated whether or not the code was implementing Hardware Reduced mode correctly. Similarly, for each the flags in the FADT flags field that are to be ignored in Hardware Reduced mode, the kernel code was again scanned for proper usage. The remainder of the patches are to fix all of the situations I could find where the kernel would not behave correctly in this ACPI mode. These seem to work just fine on the RTSM model for ARMv7, both with and without ACPI enabled, and with and without ACPI_REDUCED_HARDWARE enabled; similarly for the FVP model for ARMv8. The patches for ACPI on ARM hardware will be coming later but they presume that reduced HW mode is functioning correctly. In the meantime, there's no way I can think of to test all possible scenarios so feedback would be greatly appreciated. [0] List at https://wiki.linaro.org/LEG/Engineering/Kernel/ACPI/AcpiReducedHw#Section_5… [1] Please see the ACPI Specification v5.0 for details on Hardware Reduced mode. Al Stone (12): ACPI: introduce CONFIG_ACPI_REDUCED_HARDWARE to enable this ACPI mode ACPI: bus master reload not supported in reduced HW mode ACPI: clean up compiler warning about uninitialized field ACPI: HW reduced mode does not allow use of the FADT sci_interrupt field ACPI: ARM: exclude calls on ARM platforms, not include them on x86 ACPI: ensure several FADT fields are only used in HW reduced mode ACPI: do not reserve memory regions for some FADT entries in HW reduced mode ACPI: in HW reduced mode, getting power latencies from FADT is not allowed ACPI: add clarifying comment about processor throttling in HW reduced mode ACPI: ACPI_FADT_C2_MP_SUPPORTED must be ignored in HW reduced mode ACPI: use of ACPI_FADT_32BIT_TIMER is not allowed in HW reduced mode ACPI: correct #ifdef so compilation without ACPI_REDUCED_HARDWARE works drivers/acpi/Kconfig | 8 ++++++++ drivers/acpi/acpica/utxface.c | 3 ++- drivers/acpi/bus.c | 7 ++++++- drivers/acpi/osl.c | 28 ++++++++++++++++++++-------- drivers/acpi/pci_link.c | 14 ++++++++------ drivers/acpi/processor_idle.c | 19 ++++++++++++++----- drivers/acpi/processor_throttling.c | 8 ++++++++ drivers/acpi/sleep.c | 2 +- include/acpi/acpixf.h | 6 ++++++ include/acpi/platform/aclinux.h | 4 ++++ 10 files changed, 77 insertions(+), 22 deletions(-) -- 1.8.3.1

10 years, 11 months

[PATCH V2 0/4] ACPI/ARM: AMBA bus ACPI module

by Brandon Anderson

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. This currently uses the _DSM table for key/value pairs, which may need to be changed to use _PRP depending on the results of separate discussions. See example of the required DSDT definition format below. V2: Minor changes to address comments about #ifdef format and _DSM table tests. 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 | 338 +++++++++++++++++++++ drivers/clk/clk-fixed-rate.c | 2 +- drivers/spi/spi-pl022.c | 53 ++++ include/linux/amba/acpi.h | 29 ++ 9 files changed, 443 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) + } + } + } } }

10 years, 11 months

[PATCH 0/7] BOZO cleanup

by al.stone＠linaro.org

From: Al Stone <ahs3(a)redhat.com> These patches are a bit of all over the place. Each of them cleans up or removes BOZO comments that have been in the ACPI ARM port from the very early days of the port (I inserted the BOZO comments when it was not clear what needed to be done but I could temporarily hack around a problem). Removing each of those had all sorts of different changes needed, from the simplest (the comment turns out to be wrong in hindsight), to stubbing out or even removing functions that make no sense on an ARMv7/v8 platform. The only file in the ARM ACPI code that still has a "BOZO" comment in it should be drivers/acpi/plat/arm/sleep.c; this has been left alone since there are discussions about removing the file completely (which is probably a good idea). Al Stone (7): ACPI: ARM: make use of an ACPI blob address in FDT /chosen configurable. ACPI: ARM: Clean up a leftover comment that is no longer pertinent. ACPI: ARM: remove x86 acpi_wakeup_address usage when running on ARM ACPI: ARM: remove unnecessary comments ACPI: ARM: cleanup comments and isolate out x86-specific PAD code ACPI: ARM: stub out PCI configuration call for non-PCI systems ACPI: ARM: stub out processor idle routines for use on non-x86 platforms arch/arm/Kconfig.debug | 11 ++++++ arch/arm/include/asm/acpi.h | 7 ---- arch/arm/include/asm/io.h | 6 +--- arch/arm/include/asm/processor.h | 6 ---- arch/arm64/Kconfig.debug | 11 ++++++ arch/arm64/include/asm/acpi.h | 7 ---- arch/arm64/include/asm/processor.h | 6 ---- drivers/acpi/acpi_pad.c | 15 +++----- drivers/acpi/osl.c | 42 ++++++++++++---------- drivers/acpi/processor_idle.c | 74 +++++++++++++++++++------------------- drivers/acpi/sleep.c | 2 ++ 11 files changed, 91 insertions(+), 96 deletions(-) -- 1.8.3.1

10 years, 11 months

[PATCH] armv8, pmu: Remove unnecessary #ifdef CONFIG_ACPI

by Tomasz Nowicki

Internally include file and ACPI_PTR are already protected in the case of #ifndef CONFIG_ACPI so we don't need these checks. --- arch/arm64/kernel/perf_event.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/arch/arm64/kernel/perf_event.c b/arch/arm64/kernel/perf_event.c index 460f158..85e6e3a 100644 --- a/arch/arm64/kernel/perf_event.c +++ b/arch/arm64/kernel/perf_event.c @@ -28,9 +28,7 @@ #include <linux/platform_device.h> #include <linux/spinlock.h> #include <linux/uaccess.h> -#ifdef CONFIG_ACPI #include <linux/acpi.h> -#endif #include <asm/cputype.h> #include <asm/irq.h> @@ -1255,9 +1253,7 @@ static struct platform_driver armpmu_driver = { .driver = { .name = "arm-pmu", .of_match_table = armpmu_of_device_ids, -#ifdef CONFIG_ACPI .acpi_match_table = ACPI_PTR(armpmu_acpi_match), -#endif }, .probe = armpmu_device_probe, }; -- 1.7.9.5

10 years, 11 months

[PATCH 0/4] ACPI/ARM: AMBA bus ACPI module

by Brandon Anderson

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) + } + } + } } }

10 years, 11 months

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