haraldwolff/qemu-patch-raspberry4
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powerpc/booke: move fdt loading to rom infrastructure

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It's convinent to use rom to checking overlap, to reset etc.
And uImage and ramdisk loading has already moved to it.

Also, after we add fdt to rom, free it.

Signed-off-by: Liu Yu <yu.liu@freescale.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
This commit is contained in:
Liu Yu 2010-02-02 16:49:02 +08:00 committed by Aurelien Jarno
parent c49638177f
commit 04088adbe0
2 changed files with 18 additions and 14 deletions
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15
hw/ppc440_bamboo.c
View file

@ -27,7 +27,7 @@
#define BINARY_DEVICE_TREE_FILE "bamboo.dtb"
static void *bamboo_load_device_tree(target_phys_addr_t addr,
static int bamboo_load_device_tree(target_phys_addr_t addr,
uint32_t ramsize,
target_phys_addr_t initrd_base,
target_phys_addr_t initrd_size,
@ -42,11 +42,13 @@ static void *bamboo_load_device_tree(target_phys_addr_t addr,
filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, BINARY_DEVICE_TREE_FILE);
if (!filename) {
ret = -1;
goto out;
}
fdt = load_device_tree(filename, &fdt_size);
qemu_free(filename);
if (fdt == NULL) {
ret = -1;
goto out;
}
@ -75,12 +77,13 @@ static void *bamboo_load_device_tree(target_phys_addr_t addr,
if (kvm_enabled())
kvmppc_fdt_update(fdt);
cpu_physical_memory_write (addr, (void *)fdt, fdt_size);
ret = rom_add_blob_fixed(BINARY_DEVICE_TREE_FILE, fdt, fdt_size, addr);
qemu_free(fdt);
out:
#endif
return fdt;
return ret;
}
static void bamboo_init(ram_addr_t ram_size,
@ -101,7 +104,6 @@ static void bamboo_init(ram_addr_t ram_size,
target_ulong initrd_base = 0;
target_long initrd_size = 0;
target_ulong dt_base = 0;
void *fdt;
int i;
/* Setup CPU. */
@ -153,9 +155,8 @@ static void bamboo_init(ram_addr_t ram_size,
else
dt_base = kernel_size + loadaddr;
fdt = bamboo_load_device_tree(dt_base, ram_size,
initrd_base, initrd_size, kernel_cmdline);
if (fdt == NULL) {
if (bamboo_load_device_tree(dt_base, ram_size,
initrd_base, initrd_size, kernel_cmdline) < 0) {
fprintf(stderr, "couldn't load device tree\n");
exit(1);
}

17
hw/ppce500_mpc8544ds.c
View file

@ -72,7 +72,7 @@ out:
}
#endif
static void *mpc8544_load_device_tree(target_phys_addr_t addr,
static int mpc8544_load_device_tree(target_phys_addr_t addr,
uint32_t ramsize,
target_phys_addr_t initrd_base,
target_phys_addr_t initrd_size,
@ -87,11 +87,13 @@ static void *mpc8544_load_device_tree(target_phys_addr_t addr,
filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, BINARY_DEVICE_TREE_FILE);
if (!filename) {
ret = -1;
goto out;
}
fdt = load_device_tree(filename, &fdt_size);
qemu_free(filename);
if (fdt == NULL) {
ret = -1;
goto out;
}
@ -123,6 +125,7 @@ static void *mpc8544_load_device_tree(target_phys_addr_t addr,
if ((dp = opendir("/proc/device-tree/cpus/")) == NULL) {
printf("Can't open directory /proc/device-tree/cpus/\n");
ret = -1;
goto out;
}
@ -136,6 +139,7 @@ static void *mpc8544_load_device_tree(target_phys_addr_t addr,
closedir(dp);
if (buf[0] == '\0') {
printf("Unknow host!\n");
ret = -1;
goto out;
}
@ -143,12 +147,13 @@ static void *mpc8544_load_device_tree(target_phys_addr_t addr,
mpc8544_copy_soc_cell(fdt, buf, "timebase-frequency");
}
cpu_physical_memory_write (addr, (void *)fdt, fdt_size);
ret = rom_add_blob_fixed(BINARY_DEVICE_TREE_FILE, fdt, fdt_size, addr);
qemu_free(fdt);
out:
#endif
return fdt;
return ret;
}
static void mpc8544ds_init(ram_addr_t ram_size,
@ -168,7 +173,6 @@ static void mpc8544ds_init(ram_addr_t ram_size,
target_ulong dt_base=DTB_LOAD_BASE;
target_ulong initrd_base=INITRD_LOAD_BASE;
target_long initrd_size=0;
void *fdt;
int i=0;
unsigned int pci_irq_nrs[4] = {1, 2, 3, 4};
qemu_irq *irqs, *mpic, *pci_irqs;
@ -254,9 +258,8 @@ static void mpc8544ds_init(ram_addr_t ram_size,
/* If we're loading a kernel directly, we must load the device tree too. */
if (kernel_filename) {
fdt = mpc8544_load_device_tree(dt_base, ram_size,
initrd_base, initrd_size, kernel_cmdline);
if (fdt == NULL) {
if (mpc8544_load_device_tree(dt_base, ram_size,
initrd_base, initrd_size, kernel_cmdline) < 0) {
fprintf(stderr, "couldn't load device tree\n");
exit(1);
}