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.mccollis...@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
arch/x86/dts/Makefile | 3 ++-
arch/x86/dts/som-6896.dts | 43 +++++++++++++++++++++++++++++++++++++++++++
include/configs/som-6896.h | 38 ++++++++++++++++++++++++++++++++++++++
3 files changed, 83 insertions(+), 1 deletion(-)
create mode 100644 arch/x86/dts/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..9fa2e21 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 \
+ som-6896.dtb
targets += $(dtb-y)
diff --git a/arch/x86/dts/som-6896.dts b/arch/x86/dts/som-6896.dts
new file mode 100644
index 0000000..4ca8208
--- /dev/null
+++ b/arch/x86/dts/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>;
+ };
+
+ 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..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.mccollis...@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 */
--
2.5.0
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