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@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 Changes for V4: Changed PCI I/O start from 0x1900 to 0x2000 (actually did it this time) Removed whitespace before my name at the top of som-6896.h
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..a6b5d0f --- /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 0x2000 0x2000 0 0xe000>; + }; + + spi { + #address-cells = <1>; + #size-cells = <0>; + compatible = "intel,ich-spi"; + spi-flash@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..300e9df --- /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@gmail.com + * + * 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 */