[U-Boot] [PATCH v3] x86: Added support for Advantech SOM-6896

[Bin Meng]

Hi George,

On Tue, Oct 20, 2015 at 1:46 AM, George McCollister
<george.mccollister at gmail.com> wrote:
> Advantech SOM-6896 is a Broadwell U based COM Express Compact Module
> Type 6. This patch adds support for it as a coreboot payload.
>
> On board SATA and SPI are functional. On board Ethernet isn't functional
> but since it's optional and ties up a PCIe x4 that is otherwise brought
> out, this isn't a concern at the moment. USB doesn't work since the
> xHCI driver appears to be broken.
>
> Signed-off-by: George McCollister <george.mccollister at gmail.com>
> ---
> Changes for V2:
>  Changed pci's compatible string to "pci-x86"
>  Changed I/O from base of 0x1000 to base of 0x1900
>  Changed spi-flash memory-map
> Changes for V3:
>  Renamed som-6896.dts to broadwell_som-6896.dts
>  Changed PCI I/O start from 0x1900 to 0x2000
>
>  arch/x86/dts/Makefile               |  3 ++-
>  arch/x86/dts/broadwell_som-6896.dts | 43 +++++++++++++++++++++++++++++++++++++
>  include/configs/som-6896.h          | 38 ++++++++++++++++++++++++++++++++
>  3 files changed, 83 insertions(+), 1 deletion(-)
>  create mode 100644 arch/x86/dts/broadwell_som-6896.dts
>  create mode 100644 include/configs/som-6896.h
>
> diff --git a/arch/x86/dts/Makefile b/arch/x86/dts/Makefile
> index 71595c7..83a2b8c 100644
> --- a/arch/x86/dts/Makefile
> +++ b/arch/x86/dts/Makefile
> @@ -6,7 +6,8 @@ dtb-y += bayleybay.dtb \
>         galileo.dtb \
>         minnowmax.dtb \
>         qemu-x86_i440fx.dtb \
> -       qemu-x86_q35.dtb
> +       qemu-x86_q35.dtb \
> +       broadwell_som-6896.dtb
>
>  targets += $(dtb-y)
>
> diff --git a/arch/x86/dts/broadwell_som-6896.dts b/arch/x86/dts/broadwell_som-6896.dts
> new file mode 100644
> index 0000000..4ca8208
> --- /dev/null
> +++ b/arch/x86/dts/broadwell_som-6896.dts
> @@ -0,0 +1,43 @@
> +/dts-v1/;
> +
> +/include/ "skeleton.dtsi"
> +/include/ "serial.dtsi"
> +/include/ "rtc.dtsi"
> +
> +/ {
> +       model = "Advantech SOM-6896";
> +       compatible = "advantech,som-6896", "intel,broadwell";
> +
> +       aliases {
> +               spi0 = "/spi";
> +       };
> +
> +       config {
> +              silent_console = <0>;
> +       };
> +
> +       chosen {
> +               stdout-path = "/serial";
> +       };
> +
> +       pci {
> +               compatible = "pci-x86";
> +               #address-cells = <3>;
> +               #size-cells = <2>;
> +               u-boot,dm-pre-reloc;
> +               ranges = <0x02000000 0x0 0xe0000000 0xe0000000 0 0x10000000
> +                       0x42000000 0x0 0xd0000000 0xd0000000 0 0x10000000
> +                       0x01000000 0x0 0x1900 0x1900 0 0xe700>;

The change log for v3 says "hanged PCI I/O start from 0x1900 to
0x2000", but it is still 0x1900 here?

> +       };
> +
> +       spi {
> +               #address-cells = <1>;
> +               #size-cells = <0>;
> +               compatible = "intel,ich-spi";
> +               spi-flash at 0 {
> +                       reg = <0>;
> +                       compatible = "winbond,w25q128", "spi-flash";
> +                       memory-map = <0xff000000 0x01000000>;
> +               };
> +       };
> +};
> diff --git a/include/configs/som-6896.h b/include/configs/som-6896.h
> new file mode 100644
> index 0000000..518bf11
> --- /dev/null
> +++ b/include/configs/som-6896.h
> @@ -0,0 +1,38 @@
> +/*
> + * Configuration settings for the SOM-6896
> + *
> + * Copyright (C) 2015 NovaTech LLC
> + *                   George McCollister <george.mccollister at gmail.com>

Nits: please remove the additional spaces before the email.

> + *
> + * SPDX-License-Identifier:    GPL-2.0+
> + */
> +
> +#ifndef __CONFIG_H
> +#define __CONFIG_H
> +
> +#include <configs/x86-common.h>
> +
> +#define CONFIG_SYS_MONITOR_LEN         (1 << 20)
> +
> +#define CONFIG_BOARD_EARLY_INIT_F
> +#define CONFIG_MISC_INIT_R
> +
> +#define CONFIG_SCSI_DEV_LIST   \
> +       {PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_WILDCATPOINT_AHCI}
> +
> +#define CONFIG_SYS_EARLY_PCI_INIT
> +#define CONFIG_PCI_PNP
> +
> +#define VIDEO_IO_OFFSET                        0
> +#define CONFIG_X86EMU_RAW_IO
> +
> +#define CONFIG_ARCH_EARLY_INIT_R
> +
> +#define CONFIG_STD_DEVICES_SETTINGS     "stdin=serial,vga,usbkbd\0" \
> +                                       "stdout=serial,vga\0" \
> +                                       "stderr=serial,vga\0"
> +
> +#define CONFIG_ENV_SECT_SIZE           0x1000
> +#define CONFIG_ENV_OFFSET              0x00ff0000
> +
> +#endif /* __CONFIG_H */
> --

Regards,
Bin