Re: [RFC PATCH 0/3] ACPI: ARM AMBA bus connector resource

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Hi Naresh,

Isn't the ASL in the first post of the series?

Graeme

On Tue, Oct 22, 2013 at 01:50:32PM +0530, Naresh Bhat wrote:
> Hi Anderson,
> 
> The patches applied, compiled (except there was a conflict in the last
> patch "Hack clock names to get prototype running").  Can you please
> post the ASL code changes patch ? looks like ASL changes are different
> from what we have written originally.
> 
> -Naresh
> 
> 
> On 22 October 2013 06:03,  <brandon.anderson@xxxxxxx> wrote:
> > From: Brandon Anderson <brandon.anderson@xxxxxxx>
> >
> > This is a proposal for ACPI driver probing of the ARM AMBA devices currently listed under ‘iofpga’ in the RTSM dts file. The main addition is drivers/amba/acpi.c which fits the role of an AMBA bus ‘connector resource’ for ACPI using struct amba_device.
> >
> > I have not yet figured out the implementation details regarding clocks (handled in the dts file with clock-names). However, I have included a proposed ASL format for clock information in the DSDT example below. With the last patch that hacks the clock info, this prototype will run on the Foundation and RTSM models.
> >
> > These patches require Hanjun’s fixed-clock patches to be applied first on top of a Linaro ACPI kernel: https://git.linaro.org/gitweb?p=arm/acpi/leg-kernel.git;a=summary
> >
> > Please comment on both the concept and the implementation.
> >
> > Brandon Anderson (3):
> >   Remove UART and KMI entries from DTS file
> >   Prototype of AMBA bus 'connector resource' for ACPI
> >   Hack clock names to get prototype running
> >
> >  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 |    4 +
> >  drivers/acpi/acpi_platform.c                      |    2 +
> >  drivers/amba/Makefile                             |    2 +-
> >  drivers/amba/acpi.c                               |  172 +++++++++++++++++++++
> >  drivers/clk/clk-fixed-rate.c                      |   15 +-
> >  7 files changed, 203 insertions(+), 6 deletions(-)
> >  create mode 100644 drivers/amba/acpi.c
> >
> > --
> > 1.7.9.5
> >
> >
> > ---
> >
> >                 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 (3)
> >                                 {
> >                                         "clock-name", "apb_pclk", "\\_SB_.CLK0",
> >                                 }, Local0)
> >
> >                                 Return (Local0)
> >                         }
> >
> >                         Device (KMI0) {
> >                                 Name (_ADR,0x1c060000)
> >                                 Method (_CRS, 0x0, Serialized) {
> >                                         Name (RBUF, ResourceTemplate () {
> >                                                 Memory32Fixed (ReadWrite, 0x1c060000, 0x00010000)
> >                                                 Interrupt (ResourceConsumer, Edge, ActiveBoth,
> >                                                                 Exclusive, , , ) {44}
> >                                         })
> >                                         Return (RBUF)
> >                                 }
> >                         }
> >
> >                         Device (KMI1) {
> >                                 Name (_ADR,0x1c070000)
> >                                 Method (_CRS, 0x0, Serialized) {
> >                                         Name (RBUF, ResourceTemplate () {
> >                                                 Memory32Fixed (ReadWrite, 0x1c070000, 0x00010000)
> >                                                 Interrupt (ResourceConsumer, Edge, ActiveBoth,
> >                                                                 Exclusive, , , ) {45}
> >                                         })
> >                                         Return (RBUF)
> >                                 }
> >                         }
> >
> >                         Device (SER0) {
> >                                 Name (_ADR,0x1c090000)                         // UART0
> >                                 Method (_CRS, 0x0, Serialized) {
> >                                         Name (RBUF, ResourceTemplate () {
> >                                                 Memory32Fixed (ReadWrite, 0x1c090000, 0x00010000)
> >                                                 Interrupt (ResourceConsumer, Edge, ActiveBoth,
> >                                                                 Exclusive, , , ) {37}
> >                                         })
> >                                         Return (RBUF)
> >                                 }
> >                         }
> >
> >                         Device (SER1) {
> >                                 Name (_ADR,0x1c0a0000)                         // UART1
> >                                 Method (_CRS, 0x0, Serialized) {
> >                                         Name (RBUF, ResourceTemplate () {
> >                                                 Memory32Fixed (ReadWrite, 0x1c0a0000, 0x00010000)
> >                                                 Interrupt (ResourceConsumer, Edge, ActiveBoth,
> >                                                                 Exclusive, , , ) {38}
> >                                         })
> >                                         Return (RBUF)
> >                                 }
> >                         }
> >                         Device (SER2) {
> >                                 Name (_ADR,0x1c0b0000)                         // UART2
> >                                 Method (_CRS, 0x0, Serialized) {
> >                                         Name (RBUF, ResourceTemplate () {
> >                                                 Memory32Fixed (ReadWrite, 0x1c0b0000, 0x00010000)
> >                                                 Interrupt (ResourceConsumer, Edge, ActiveBoth,
> >                                                                 Exclusive, , , ) {39}
> >                                         })
> >                                         Return (RBUF)
> >                                 }
> >                         }
> >
> >                         Device (SER3) {
> >                                 Name (_ADR,0x1c0c0000)                         // UART3
> >                                 Method (_CRS, 0x0, Serialized) {
> >                                         Name (RBUF, ResourceTemplate () {
> >                                                 Memory32Fixed (ReadWrite, 0x1c0c0000, 0x00010000)
> >                                                 Interrupt (ResourceConsumer, Edge, ActiveBoth,
> >                                                                 Exclusive, , , ) {40}
> >                                         })
> >                                         Return (RBUF)
> >                                 }
> >                         }
> >                 }
> >
> >
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