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[Qemu-ppc] [PATCH 24/25] PPC: e500: enable manual loading of dtb blob
From: |
Alexander Graf |
Subject: |
[Qemu-ppc] [PATCH 24/25] PPC: e500: enable manual loading of dtb blob |
Date: |
Wed, 30 May 2012 13:00:45 +0200 |
We want to be able to override the automatically created device tree
by using the -dtb option. Implement this for the mpc8544ds machine.
Signed-off-by: Alexander Graf <address@hidden>
---
hw/ppce500_mpc8544ds.c | 26 ++++++++++++++++++++++----
1 files changed, 22 insertions(+), 4 deletions(-)
diff --git a/hw/ppce500_mpc8544ds.c b/hw/ppce500_mpc8544ds.c
index 9c41f50..716a9e8 100644
--- a/hw/ppce500_mpc8544ds.c
+++ b/hw/ppce500_mpc8544ds.c
@@ -112,6 +112,27 @@ static int mpc8544_load_device_tree(CPUPPCState *env,
0x0, 0x10000 };
QemuOpts *machine_opts;
const char *dumpdtb = NULL;
+ const char *dtb_file = NULL;
+
+ machine_opts = qemu_opts_find(qemu_find_opts("machine"), 0);
+ if (machine_opts) {
+ dumpdtb = qemu_opt_get(machine_opts, "dumpdtb");
+ dtb_file = qemu_opt_get(machine_opts, "dtb");
+ }
+
+ if (dtb_file) {
+ char *filename;
+ filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, dtb_file);
+ if (!filename) {
+ goto out;
+ }
+
+ fdt = load_device_tree(filename, &fdt_size);
+ if (!fdt) {
+ goto out;
+ }
+ goto done;
+ }
fdt = create_device_tree(&fdt_size);
if (fdt == NULL) {
@@ -300,10 +321,7 @@ static int mpc8544_load_device_tree(CPUPPCState *env,
qemu_devtree_setprop_cell(fdt, pci, "#address-cells", 3);
qemu_devtree_setprop_string(fdt, "/aliases", "pci0", pci);
- machine_opts = qemu_opts_find(qemu_find_opts("machine"), 0);
- if (machine_opts) {
- dumpdtb = qemu_opt_get(machine_opts, "dumpdtb");
- }
+done:
if (dumpdtb) {
/* Dump the dtb to a file and quit */
FILE *f = fopen(dumpdtb, "wb");
--
1.6.0.2
- [Qemu-ppc] [PATCH 01/25] dt: allow add_subnode to create root subnodes, (continued)
- [Qemu-ppc] [PATCH 01/25] dt: allow add_subnode to create root subnodes, Alexander Graf, 2012/05/30
- [Qemu-ppc] [PATCH 09/25] PPC: e500: require libfdt, Alexander Graf, 2012/05/30
- [Qemu-ppc] [PATCH 03/25] dt: add helper for phandle references, Alexander Graf, 2012/05/30
- [Qemu-ppc] [PATCH 05/25] dt: add helper for phandle enumeration, Alexander Graf, 2012/05/30
- [Qemu-ppc] [PATCH 08/25] dt: add helper for 64bit cell adds, Alexander Graf, 2012/05/30
- [Qemu-ppc] [PATCH 10/25] PPC: e500: dt: create memory node dynamically, Alexander Graf, 2012/05/30
- [Qemu-ppc] [PATCH 13/25] PPC: e500: dt: create / node dynamically, Alexander Graf, 2012/05/30
- [Qemu-ppc] [PATCH 02/25] dt: add helpers for 2, 3 and 4 cell adds, Alexander Graf, 2012/05/30
- [Qemu-ppc] [PATCH 12/25] PPC: e500: dt: create /hypervisor node dynamically, Alexander Graf, 2012/05/30
- [Qemu-ppc] [PATCH 24/25] PPC: e500: enable manual loading of dtb blob,
Alexander Graf <=
- [Qemu-ppc] [PATCH 14/25] PPC: e500: dt: create /chosen node dynamically, Alexander Graf, 2012/05/30
- [Qemu-ppc] [PATCH 22/25] PPC: e500: dt: use 64bit cell helper, Alexander Graf, 2012/05/30
- [Qemu-ppc] [PATCH 15/25] PPC: e500: dt: create /soc8544 node dynamically, Alexander Graf, 2012/05/30
- [Qemu-ppc] [PATCH 20/25] PPC: e500: dt: start with empty device tree, Alexander Graf, 2012/05/30
- [Qemu-ppc] [PATCH 07/25] dt: add helper for phandle allocation, Alexander Graf, 2012/05/30