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microblaze: Conditionalize FDT features.

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If libfdt is not available, disable the fdt manipulation features.

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
This commit is contained in:
Edgar E. Iglesias 2009-05-27 10:49:12 +02:00
parent 48c50a6234
commit 7696d1ecd0
1 changed files with 17 additions and 2 deletions
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19
hw/petalogix_s3adsp1800_mmu.c
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@ -52,12 +52,15 @@ static int petalogix_load_device_tree(target_phys_addr_t addr,
target_phys_addr_t initrd_size, target_phys_addr_t initrd_size,
const char *kernel_cmdline) const char *kernel_cmdline)
{ {
#ifdef HAVE_FDT
void *fdt; void *fdt;
char *path = NULL; char *path = NULL;
int fdt_size;
int pathlen; int pathlen;
int r; int r;
#endif
int fdt_size;
#ifdef HAVE_FDT
/* Try the local "mb.dtb" override. */ /* Try the local "mb.dtb" override. */
fdt = load_device_tree("mb.dtb", &fdt_size); fdt = load_device_tree("mb.dtb", &fdt_size);
if (!fdt) { if (!fdt) {
@ -74,8 +77,20 @@ static int petalogix_load_device_tree(target_phys_addr_t addr,
r = qemu_devtree_setprop_string(fdt, "/chosen", "bootargs", kernel_cmdline); r = qemu_devtree_setprop_string(fdt, "/chosen", "bootargs", kernel_cmdline);
if (r < 0) if (r < 0)
fprintf(stderr, "couldn't set /chosen/bootargs\n"); fprintf(stderr, "couldn't set /chosen/bootargs\n");
printf("write fdt to addr=%x fdtsize=%d\n", addr, fdt_size);
cpu_physical_memory_write (addr, (void *)fdt, fdt_size); cpu_physical_memory_write (addr, (void *)fdt, fdt_size);
#else
/* We lack libfdt so we cannot manipulate the fdt. Just pass on the blob
to the kernel. */
fdt_size = load_image_targphys("mb.dtb", addr, 0x10000);
if (fdt_size < 0) {
fdt_size = load_image_targphys(BINARY_DEVICE_TREE_FILE, addr, 0x10000);
}
if (kernel_cmdline) {
fprintf(stderr,
"Warning: missing libfdt, cannot pass cmdline to kernel!\n");
}
#endif
return fdt_size; return fdt_size;
} }