diff options
| author | Jorge Ramirez-Ortiz <jorge.ramirez-ortiz@linaro.org> | 2018-01-10 11:33:50 +0100 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2018-01-15 16:29:02 -0500 |
| commit | 4b684a6b82572654b7398d871aa138398c2b18c7 (patch) | |
| tree | 66aaaaa9f44d7d26f6509caca78fe35d1f4c68e7 /board/qualcomm/dragonboard820c/head.S | |
| parent | 7c75f7f1b29eb53912b75472f4d8135c465f87f5 (diff) | |
db820c: add qualcomm dragonboard 820C support
This commit adds support for 96Boards Dragonboard820C.
The board is based on APQ8086 Qualcomm Soc, complying with the
96Boards specification.
Features
- 4x Kyro CPU (64 bit) up to 2.15GHz
- USB2.0
- USB3.0
- ISP
- Qualcomm Hexagon DSP
- SD 3.0 (UHS-I)
- UFS 2.0
- Qualcomm Adreno 530 GPU
- GPS
- BT 4.2
- Wi-Fi 2.4GHz, 5GHz (802.11ac)
- PCIe 2.0
- MIPI-CSI, MIPI-DSI
- I2S
U-Boot boots chained from LK (LK implements the fastboot protocol) in
64-bit mode.
For detailed build instructions see readme.txt in the board directory.
Signed-off-by: Jorge Ramirez-Ortiz <jorge.ramirez-ortiz@linaro.org>
Diffstat (limited to 'board/qualcomm/dragonboard820c/head.S')
| -rw-r--r-- | board/qualcomm/dragonboard820c/head.S | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/board/qualcomm/dragonboard820c/head.S b/board/qualcomm/dragonboard820c/head.S new file mode 100644 index 0000000000..06d82d5831 --- /dev/null +++ b/board/qualcomm/dragonboard820c/head.S @@ -0,0 +1,34 @@ +/* + * ARM64 header for proper chain-loading with Little Kernel. + * + * Little Kernel shipped with Dragonboard820C boots standard Linux images for + * ARM64. This file adds header that is required to boot U-Boot properly. + * + * For details see: + * https://www.kernel.org/doc/Documentation/arm64/booting.txt + * + * (C) Copyright 2015 Mateusz Kulikowski <mateusz.kulikowski@gmail.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <config.h> + +/* + * per document in linux/Doc/arm64/booting.text + */ +.global _arm64_header +_arm64_header: + b _start + .word 0 + .quad CONFIG_SYS_TEXT_BASE-PHYS_SDRAM_1 /* Image load offset, LE */ + .quad 0 /* Effective size of kernel image, little-endian */ + .quad 0 /* kernel flags, little-endian */ + .quad 0 /* reserved */ + .quad 0 /* reserved */ + .quad 0 /* reserved */ + .byte 0x41 /* Magic number, "ARM\x64" */ + .byte 0x52 + .byte 0x4d + .byte 0x64 + .word 0 /* reserved (used for PE COFF offset) */ |