lk patches the fdt to set some device's MAC addresses and more
importantly to patch in the simple-framebuffer node that we want u-boot
to see.
Signed-off-by: Rob Clark <robdcl...@gmail.com>
---
board/qualcomm/dragonboard410c/Makefile | 1 +
board/qualcomm/dragonboard410c/dragonboard410c.c | 8 ++++++
board/qualcomm/dragonboard410c/lowlevel_init.S | 36 ++++++++++++++++++++++++
3 files changed, 45 insertions(+)
create mode 100644 board/qualcomm/dragonboard410c/lowlevel_init.S
diff --git a/board/qualcomm/dragonboard410c/Makefile
b/board/qualcomm/dragonboard410c/Makefile
index cd678088fa..5082383be4 100644
--- a/board/qualcomm/dragonboard410c/Makefile
+++ b/board/qualcomm/dragonboard410c/Makefile
@@ -5,4 +5,5 @@
#
obj-y := dragonboard410c.o
+obj-y += lowlevel_init.o
extra-y += head.o
diff --git a/board/qualcomm/dragonboard410c/dragonboard410c.c
b/board/qualcomm/dragonboard410c/dragonboard410c.c
index 37d0b85e0e..1fa4dc1b15 100644
--- a/board/qualcomm/dragonboard410c/dragonboard410c.c
+++ b/board/qualcomm/dragonboard410c/dragonboard410c.c
@@ -27,6 +27,14 @@ int dram_init_banksize(void)
return 0;
}
+extern unsigned long fw_dtb_pointer;
+
+void *board_fdt_blob_setup(void)
+{
+ if (fdt_magic(fw_dtb_pointer) != FDT_MAGIC)
+ return NULL;
+ return (void *)fw_dtb_pointer;
+}
int board_prepare_usb(enum usb_init_type type)
{
diff --git a/board/qualcomm/dragonboard410c/lowlevel_init.S
b/board/qualcomm/dragonboard410c/lowlevel_init.S
new file mode 100644
index 0000000000..cdbd8e14db
--- /dev/null
+++ b/board/qualcomm/dragonboard410c/lowlevel_init.S
@@ -0,0 +1,36 @@
+/*
+ * (C) Copyright 2016
+ * Cédric Schieli <cschi...@gmail.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <config.h>
+
+.align 8
+.global fw_dtb_pointer
+fw_dtb_pointer:
+#ifdef CONFIG_ARM64
+ .dword 0x0
+#else
+ .word 0x0
+#endif
+
+/*
+ * Routine: save_boot_params (called after reset from start.S)
+ * Description: save ATAG/FDT address provided by the firmware at boot time
+ */
+
+.global save_boot_params
+save_boot_params:
+
+ /* The firmware provided ATAG/FDT address can be found in r2/x0 */
+#ifdef CONFIG_ARM64
+ adr x8, fw_dtb_pointer
+ str x0, [x8]
+#else
+ str r2, fw_dtb_pointer
+#endif
+
+ /* Returns */
+ b save_boot_params_ret
--
2.13.0
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