[PATCH 00/28] MIPS Boston board support

[PATCH 00/28] MIPS Boston board support

[Paul Burton]

This series introduces support for the Imagination Technologies MIPS
Boston development board. Boston is an FPGA-based development board
akin to the much older Malta board, built around a Xilinx FPGA running
a MIPS CPU & other logic including a PCIe root port connected to an
Intel EG20T Platform Controller Hub. This provides a base set of
peripherals including SATA, USB, SD/MMC, ethernet, I2C & GPIOs. PCIe
slots are also present for expansion.

Paul Burton (28):
  serial: earlycon: allow MEM32 I/O for DT earlycon
  dt-bindings: ascii-lcd: Document a binding for simple ASCII LCDs
  auxdisplay: driver for simple memory mapped ASCII LCD displays
  MIPS: PCI: compatibility with ARM-like PCI host drivers
  PCI: xilinx: keep references to both IRQ domains
  PCI: xilinx: unify INTx & MSI interrupt FIFO decode
  PCI: xilinx: always clear interrupt decode register
  PCI: xilinx: fix INTX irq dispatch
  PCI: xilinx: allow build on MIPS platforms
  misc: pch_phub: allow build on MIPS platforms
  dmaengine: pch_dma: allow build on MIPS platforms
  gpio: pch: allow build on MIPS platforms
  gpio: pch: allow use from device tree
  i2c: eg20t: allow build on MIPS platforms
  i2c: eg20t: set i2c_adapter->dev.of_node
  rtc: m41t80: add devicetree probe support
  spi: topcliff-pch: allow build for MIPS platforms
  ptp: pch: allow build on MIPS platforms
  net: pch_gbe: allow build on MIPS platforms
  net: pch_gbe: clear interrupt FIFO during probe
  net: pch_gbe: mark Minnow PHY reset GPIO active low
  net: pch_gbe: pull PHY GPIO handling out of Minnow code
  net: pch_gbe: always reset PHY along with MAC
  net: pch_gbe: add device tree support
  net: pch_gbe: allow longer for resets
  MIPS: support for generating FIT (.itb) images
  dt-bindings: mips: img,boston: Document img,boston binding
  MIPS: Boston board support

 Documentation/devicetree/bindings/ascii-lcd.txt    |  10 +
 .../devicetree/bindings/mips/img/boston.txt        |  15 ++
 MAINTAINERS                                        |  14 ++
 arch/mips/Kbuild.platforms                         |   1 +
 arch/mips/Kconfig                                  |  45 ++++
 arch/mips/Makefile                                 |   6 +-
 arch/mips/boot/Makefile                            |  61 ++++++
 arch/mips/boot/dts/Makefile                        |   1 +
 arch/mips/boot/dts/img/Makefile                    |   7 +
 arch/mips/boot/dts/img/boston.dts                  | 201 ++++++++++++++++++
 arch/mips/boot/skeleton.its                        |  24 +++
 arch/mips/boston/Makefile                          |  12 ++
 arch/mips/boston/Platform                          |   8 +
 arch/mips/boston/init.c                            |  75 +++++++
 arch/mips/boston/int.c                             |  33 +++
 arch/mips/boston/time.c                            |  89 ++++++++
 arch/mips/boston/vmlinux.its                       |  23 ++
 arch/mips/configs/boston_defconfig                 | 170 +++++++++++++++
 .../asm/mach-boston/cpu-feature-overrides.h        |  26 +++
 arch/mips/include/asm/mach-boston/irq.h            |  18 ++
 arch/mips/include/asm/mach-boston/spaces.h         |  20 ++
 arch/mips/include/asm/pci.h                        |  67 +++++-
 arch/mips/lib/iomap-pci.c                          |   2 +-
 arch/mips/pci/Makefile                             |   6 +
 arch/mips/pci/pci-generic.c                        | 138 ++++++++++++
 arch/mips/pci/pci-legacy.c                         | 232 +++++++++++++++++++++
 arch/mips/pci/pci.c                                | 226 +-------------------
 drivers/auxdisplay/Kconfig                         |   7 +
 drivers/auxdisplay/Makefile                        |   1 +
 drivers/auxdisplay/ascii-lcd.c                     | 230 ++++++++++++++++++++
 drivers/dma/Kconfig                                |   2 +-
 drivers/gpio/Kconfig                               |   2 +-
 drivers/gpio/gpio-pch.c                            |   1 +
 drivers/i2c/busses/Kconfig                         |   2 +-
 drivers/i2c/busses/i2c-eg20t.c                     |   1 +
 drivers/misc/Kconfig                               |   2 +-
 drivers/net/ethernet/oki-semi/pch_gbe/Kconfig      |   2 +-
 drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe.h    |   4 +-
 .../net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c   |  74 +++++--
 drivers/of/fdt.c                                   |   2 +-
 drivers/pci/host/Kconfig                           |   2 +-
 drivers/pci/host/pcie-xilinx.c                     | 123 +++++------
 drivers/ptp/Kconfig                                |   2 +-
 drivers/rtc/rtc-m41t80.c                           |  26 +++
 drivers/spi/Kconfig                                |   2 +-
 drivers/tty/serial/Makefile                        |   1 +
 drivers/tty/serial/earlycon.c                      |  15 +-
 include/linux/serial_core.h                        |   2 +-
 48 files changed, 1720 insertions(+), 313 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/ascii-lcd.txt
 create mode 100644 Documentation/devicetree/bindings/mips/img/boston.txt
 create mode 100644 arch/mips/boot/dts/img/Makefile
 create mode 100644 arch/mips/boot/dts/img/boston.dts
 create mode 100644 arch/mips/boot/skeleton.its
 create mode 100644 arch/mips/boston/Makefile
 create mode 100644 arch/mips/boston/Platform
 create mode 100644 arch/mips/boston/init.c
 create mode 100644 arch/mips/boston/int.c
 create mode 100644 arch/mips/boston/time.c
 create mode 100644 arch/mips/boston/vmlinux.its
 create mode 100644 arch/mips/configs/boston_defconfig
 create mode 100644 arch/mips/include/asm/mach-boston/cpu-feature-overrides.h
 create mode 100644 arch/mips/include/asm/mach-boston/irq.h
 create mode 100644 arch/mips/include/asm/mach-boston/spaces.h
 create mode 100644 arch/mips/pci/pci-generic.c
 create mode 100644 arch/mips/pci/pci-legacy.c
 create mode 100644 drivers/auxdisplay/ascii-lcd.c

-- 
2.6.2

[PATCH 14/28] i2c: eg20t: allow build on MIPS platforms

[Paul Burton]

Allow the eg20t I2C driver to be built for MIPS platforms, in
preparation for use on the MIPS Boston board.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
---

 drivers/i2c/busses/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index 7b0aa82..69c46fe 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -516,7 +516,7 @@ config I2C_EFM32
 
 config I2C_EG20T
 	tristate "Intel EG20T PCH/LAPIS Semicon IOH(ML7213/ML7223/ML7831) I2C"
-	depends on PCI && (X86_32 || COMPILE_TEST)
+	depends on PCI && (X86_32 || MIPS || COMPILE_TEST)
 	help
 	  This driver is for PCH(Platform controller Hub) I2C of EG20T which
 	  is an IOH(Input/Output Hub) for x86 embedded processor.
-- 
2.6.2

[PATCH 15/28] i2c: eg20t: set i2c_adapter->dev.of_node

[Paul Burton]

Set the I2C adapter devices of_node to that of the PCI device, such that
I2C clients may be instantiated via device tree.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
---

 drivers/i2c/busses/i2c-eg20t.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/i2c/busses/i2c-eg20t.c b/drivers/i2c/busses/i2c-eg20t.c
index 76e699f..137125b 100644
--- a/drivers/i2c/busses/i2c-eg20t.c
+++ b/drivers/i2c/busses/i2c-eg20t.c
@@ -795,6 +795,7 @@ static int pch_i2c_probe(struct pci_dev *pdev,
 		/* base_addr + offset; */
 		adap_info->pch_data[i].pch_base_address = base_addr + 0x100 * i;
 
+		pch_adap->dev.of_node = pdev->dev.of_node;
 		pch_adap->dev.parent = &pdev->dev;
 
 		pch_i2c_init(&adap_info->pch_data[i]);
-- 
2.6.2

Re: [PATCH 00/28] MIPS Boston board support

[Mark Brown]

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On Mon, Nov 30, 2015 at 04:21:25PM +0000, Paul Burton wrote:
> This series introduces support for the Imagination Technologies MIPS
> Boston development board. Boston is an FPGA-based development board
> akin to the much older Malta board, built around a Xilinx FPGA running
> a MIPS CPU & other logic including a PCIe root port connected to an
> Intel EG20T Platform Controller Hub. This provides a base set of
> peripherals including SATA, USB, SD/MMC, ethernet, I2C & GPIOs. PCIe
> slots are also present for expansion.

This is an insanely big CC list :(

What are the interdependencies here - does this really need to be one
patch series or can the individual driver changes go in separately?  The
latter is more normal, usually rather than a single patch series we just
have each driver sent by itself since that's usually easier to handle
and avoids the massive CC lists.

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Re: [PATCH 14/28] i2c: eg20t: allow build on MIPS platforms

[Wolfram Sang]

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On Mon, Nov 30, 2015 at 04:21:39PM +0000, Paul Burton wrote:
> Allow the eg20t I2C driver to be built for MIPS platforms, in
> preparation for use on the MIPS Boston board.
> 
> Signed-off-by: Paul Burton <paul.burton@imgtec.com>

Applied to for-next, thanks!


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Re: [PATCH 15/28] i2c: eg20t: set i2c_adapter->dev.of_node

[Wolfram Sang]

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On Mon, Nov 30, 2015 at 04:21:40PM +0000, Paul Burton wrote:
> Set the I2C adapter devices of_node to that of the PCI device, such that
> I2C clients may be instantiated via device tree.
> 
> Signed-off-by: Paul Burton <paul.burton@imgtec.com>

Applied to for-next, thanks!


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Re: [PATCH 00/28] MIPS Boston board support

[Linus Walleij]

On Mon, Nov 30, 2015 at 5:34 PM, Mark Brown <broonie@kernel.org> wrote:
> On Mon, Nov 30, 2015 at 04:21:25PM +0000, Paul Burton wrote:
>> This series introduces support for the Imagination Technologies MIPS
>> Boston development board. Boston is an FPGA-based development board
>> akin to the much older Malta board, built around a Xilinx FPGA running
>> a MIPS CPU & other logic including a PCIe root port connected to an
>> Intel EG20T Platform Controller Hub. This provides a base set of
>> peripherals including SATA, USB, SD/MMC, ethernet, I2C & GPIOs. PCIe
>> slots are also present for expansion.
>
> This is an insanely big CC list :(
>
> What are the interdependencies here - does this really need to be one
> patch series or can the individual driver changes go in separately?

I took the two GPIO patches and ran off with them at least.

Yours,
Linus Walleij