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malta: Always allocate flash memory 

There is no reason why there should not be a flash memory when the
Malta emulation is started with a Linux kernel. When flash memory
is always available, the code is simpler, and it can be better tested.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
This commit is contained in:
Stefan Weil 2012-01-28 05:18:17 +00:00
parent 82a9807bca
commit bb4b335871
1 changed files with 22 additions and 32 deletions
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52
hw/mips_malta.c
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@ -777,7 +777,7 @@ void mips_malta_init (ram_addr_t ram_size,
MemoryRegion *system_memory = get_system_memory();
MemoryRegion *ram = g_new(MemoryRegion, 1);
MemoryRegion *bios, *bios_alias = g_new(MemoryRegion, 1);
target_long bios_size;
target_long bios_size = 0x400000;
int64_t kernel_entry;
PCIBus *pci_bus;
ISABus *isa_bus;
@ -791,7 +791,7 @@ void mips_malta_init (ram_addr_t ram_size,
DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
DriveInfo *fd[MAX_FD];
int fl_idx = 0;
int fl_sectors = 0;
int fl_sectors = bios_size >> 16;
int be;
DeviceState *dev = qdev_create(NULL, "mips-malta");
@ -849,14 +849,24 @@ void mips_malta_init (ram_addr_t ram_size,
/* FPGA */
malta_fpga_init(system_memory, 0x1f000000LL, env->irq[2], serial_hds[2]);
/* Load firmware in flash / BIOS unless we boot directly into a kernel. */
/* Load firmware in flash / BIOS. */
dinfo = drive_get(IF_PFLASH, 0, fl_idx);
#ifdef DEBUG_BOARD_INIT
if (dinfo) {
printf("Register parallel flash %d size " TARGET_FMT_lx " at "
"addr %08llx '%s' %x\n",
fl_idx, bios_size, 0x1e000000LL,
bdrv_get_device_name(dinfo->bdrv), fl_sectors);
}
#endif
fl = pflash_cfi01_register(0x1e000000LL, NULL, "mips_malta.bios",
BIOS_SIZE, dinfo ? dinfo->bdrv : NULL,
65536, fl_sectors,
4, 0x0000, 0x0000, 0x0000, 0x0000, be);
bios = pflash_cfi01_get_memory(fl);
fl_idx++;
if (kernel_filename) {
/* Write a small bootloader to the flash location. */
bios = g_new(MemoryRegion, 1);
memory_region_init_ram(bios, "mips_malta.bios", BIOS_SIZE);
vmstate_register_ram_global(bios);
memory_region_set_readonly(bios, true);
memory_region_add_subregion(system_memory, 0x1e000000LL, bios);
loaderparams.ram_size = ram_size;
loaderparams.kernel_filename = kernel_filename;
loaderparams.kernel_cmdline = kernel_cmdline;
@ -864,32 +874,12 @@ void mips_malta_init (ram_addr_t ram_size,
kernel_entry = load_kernel();
write_bootloader(env, memory_region_get_ram_ptr(bios), kernel_entry);
} else {
dinfo = drive_get(IF_PFLASH, 0, fl_idx);
if (dinfo) {
/* Load firmware from flash. */
bios_size = 0x400000;
fl_sectors = bios_size >> 16;
#ifdef DEBUG_BOARD_INIT
printf("Register parallel flash %d size " TARGET_FMT_lx " at "
"addr %08llx '%s' %x\n",
fl_idx, bios_size, 0x1e000000LL,
bdrv_get_device_name(dinfo->bdrv), fl_sectors);
#endif
fl = pflash_cfi01_register(0x1e000000LL,
NULL, "mips_malta.bios", BIOS_SIZE,
dinfo->bdrv, 65536, fl_sectors,
4, 0x0000, 0x0000, 0x0000, 0x0000, be);
bios = pflash_cfi01_get_memory(fl);
fl_idx++;
} else {
bios = g_new(MemoryRegion, 1);
memory_region_init_ram(bios, "mips_malta.bios", BIOS_SIZE);
vmstate_register_ram_global(bios);
memory_region_set_readonly(bios, true);
memory_region_add_subregion(system_memory, 0x1e000000LL, bios);
if (!dinfo) {
/* Load a BIOS image. */
if (bios_name == NULL)
if (bios_name == NULL) {
bios_name = BIOS_FILENAME;
}
filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);
if (filename) {
bios_size = load_image_targphys(filename, 0x1e000000LL,