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Diffstat (limited to 'hw/mips/mips_fulong2e.c')
-rw-r--r--hw/mips/mips_fulong2e.c96
1 files changed, 58 insertions, 38 deletions
diff --git a/hw/mips/mips_fulong2e.c b/hw/mips/mips_fulong2e.c
index 6e4fba2..cf537dd 100644
--- a/hw/mips/mips_fulong2e.c
+++ b/hw/mips/mips_fulong2e.c
@@ -48,13 +48,13 @@
#define DEBUG_FULONG2E_INIT
-#define ENVP_ADDR 0x80002000l
-#define ENVP_NB_ENTRIES 16
-#define ENVP_ENTRY_SIZE 256
+#define ENVP_ADDR 0x80002000l
+#define ENVP_NB_ENTRIES 16
+#define ENVP_ENTRY_SIZE 256
/* fulong 2e has a 512k flash: Winbond W39L040AP70Z */
-#define BIOS_SIZE (512 * KiB)
-#define MAX_IDE_BUS 2
+#define BIOS_SIZE (512 * KiB)
+#define MAX_IDE_BUS 2
/*
* PMON is not part of qemu and released with BSD license, anyone
@@ -83,14 +83,15 @@ static struct _loaderparams {
const char *initrd_filename;
} loaderparams;
-static void GCC_FMT_ATTR(3, 4) prom_set(uint32_t* prom_buf, int index,
+static void GCC_FMT_ATTR(3, 4) prom_set(uint32_t *prom_buf, int index,
const char *string, ...)
{
va_list ap;
int32_t table_addr;
- if (index >= ENVP_NB_ENTRIES)
+ if (index >= ENVP_NB_ENTRIES) {
return;
+ }
if (string == NULL) {
prom_buf[index] = 0;
@@ -105,7 +106,7 @@ static void GCC_FMT_ATTR(3, 4) prom_set(uint32_t* prom_buf, int index,
va_end(ap);
}
-static int64_t load_kernel (CPUMIPSState *env)
+static int64_t load_kernel(CPUMIPSState *env)
{
int64_t kernel_entry, kernel_low, kernel_high, initrd_size;
int index = 0;
@@ -130,16 +131,18 @@ static int64_t load_kernel (CPUMIPSState *env)
initrd_size = 0;
initrd_offset = 0;
if (loaderparams.initrd_filename) {
- initrd_size = get_image_size (loaderparams.initrd_filename);
+ initrd_size = get_image_size(loaderparams.initrd_filename);
if (initrd_size > 0) {
- initrd_offset = (kernel_high + ~INITRD_PAGE_MASK) & INITRD_PAGE_MASK;
+ initrd_offset = (kernel_high + ~INITRD_PAGE_MASK) &
+ INITRD_PAGE_MASK;
if (initrd_offset + initrd_size > ram_size) {
error_report("memory too small for initial ram disk '%s'",
loaderparams.initrd_filename);
exit(1);
}
initrd_size = load_image_targphys(loaderparams.initrd_filename,
- initrd_offset, ram_size - initrd_offset);
+ initrd_offset,
+ ram_size - initrd_offset);
}
if (initrd_size == (target_ulong) -1) {
error_report("could not load initial ram disk '%s'",
@@ -154,9 +157,10 @@ static int64_t load_kernel (CPUMIPSState *env)
prom_set(prom_buf, index++, "%s", loaderparams.kernel_filename);
if (initrd_size > 0) {
- prom_set(prom_buf, index++, "rd_start=0x%" PRIx64 " rd_size=%" PRId64 " %s",
- cpu_mips_phys_to_kseg0(NULL, initrd_offset), initrd_size,
- loaderparams.kernel_cmdline);
+ prom_set(prom_buf, index++,
+ "rd_start=0x%" PRIx64 " rd_size=%" PRId64 " %s",
+ cpu_mips_phys_to_kseg0(NULL, initrd_offset),
+ initrd_size, loaderparams.kernel_cmdline);
} else {
prom_set(prom_buf, index++, "%s", loaderparams.kernel_cmdline);
}
@@ -175,34 +179,48 @@ static int64_t load_kernel (CPUMIPSState *env)
return kernel_entry;
}
-static void write_bootloader (CPUMIPSState *env, uint8_t *base, int64_t kernel_addr)
+static void write_bootloader(CPUMIPSState *env, uint8_t *base,
+ int64_t kernel_addr)
{
uint32_t *p;
/* Small bootloader */
- p = (uint32_t *) base;
+ p = (uint32_t *)base;
- stl_p(p++, 0x0bf00010); /* j 0x1fc00040 */
- stl_p(p++, 0x00000000); /* nop */
+ /* j 0x1fc00040 */
+ stl_p(p++, 0x0bf00010);
+ /* nop */
+ stl_p(p++, 0x00000000);
/* Second part of the bootloader */
- p = (uint32_t *) (base + 0x040);
-
- stl_p(p++, 0x3c040000); /* lui a0, 0 */
- stl_p(p++, 0x34840002); /* ori a0, a0, 2 */
- stl_p(p++, 0x3c050000 | ((ENVP_ADDR >> 16) & 0xffff)); /* lui a1, high(ENVP_ADDR) */
- stl_p(p++, 0x34a50000 | (ENVP_ADDR & 0xffff)); /* ori a1, a0, low(ENVP_ADDR) */
- stl_p(p++, 0x3c060000 | (((ENVP_ADDR + 8) >> 16) & 0xffff)); /* lui a2, high(ENVP_ADDR + 8) */
- stl_p(p++, 0x34c60000 | ((ENVP_ADDR + 8) & 0xffff)); /* ori a2, a2, low(ENVP_ADDR + 8) */
- stl_p(p++, 0x3c070000 | (loaderparams.ram_size >> 16)); /* lui a3, high(env->ram_size) */
- stl_p(p++, 0x34e70000 | (loaderparams.ram_size & 0xffff)); /* ori a3, a3, low(env->ram_size) */
- stl_p(p++, 0x3c1f0000 | ((kernel_addr >> 16) & 0xffff)); /* lui ra, high(kernel_addr) */;
- stl_p(p++, 0x37ff0000 | (kernel_addr & 0xffff)); /* ori ra, ra, low(kernel_addr) */
- stl_p(p++, 0x03e00008); /* jr ra */
- stl_p(p++, 0x00000000); /* nop */
+ p = (uint32_t *)(base + 0x040);
+
+ /* lui a0, 0 */
+ stl_p(p++, 0x3c040000);
+ /* ori a0, a0, 2 */
+ stl_p(p++, 0x34840002);
+ /* lui a1, high(ENVP_ADDR) */
+ stl_p(p++, 0x3c050000 | ((ENVP_ADDR >> 16) & 0xffff));
+ /* ori a1, a0, low(ENVP_ADDR) */
+ stl_p(p++, 0x34a50000 | (ENVP_ADDR & 0xffff));
+ /* lui a2, high(ENVP_ADDR + 8) */
+ stl_p(p++, 0x3c060000 | (((ENVP_ADDR + 8) >> 16) & 0xffff));
+ /* ori a2, a2, low(ENVP_ADDR + 8) */
+ stl_p(p++, 0x34c60000 | ((ENVP_ADDR + 8) & 0xffff));
+ /* lui a3, high(env->ram_size) */
+ stl_p(p++, 0x3c070000 | (loaderparams.ram_size >> 16));
+ /* ori a3, a3, low(env->ram_size) */
+ stl_p(p++, 0x34e70000 | (loaderparams.ram_size & 0xffff));
+ /* lui ra, high(kernel_addr) */
+ stl_p(p++, 0x3c1f0000 | ((kernel_addr >> 16) & 0xffff));
+ /* ori ra, ra, low(kernel_addr) */
+ stl_p(p++, 0x37ff0000 | (kernel_addr & 0xffff));
+ /* jr ra */
+ stl_p(p++, 0x03e00008);
+ /* nop */
+ stl_p(p++, 0x00000000);
}
-
static void main_cpu_reset(void *opaque)
{
MIPSCPU *cpu = opaque;
@@ -252,11 +270,11 @@ static void vt82c686b_southbridge_init(PCIBus *pci_bus, int slot, qemu_irq intc,
}
/* Network support */
-static void network_init (PCIBus *pci_bus)
+static void network_init(PCIBus *pci_bus)
{
int i;
- for(i = 0; i < nb_nics; i++) {
+ for (i = 0; i < nb_nics; i++) {
NICInfo *nd = &nd_table[i];
const char *default_devaddr = NULL;
@@ -308,15 +326,17 @@ static void mips_fulong2e_init(MachineState *machine)
memory_region_add_subregion(address_space_mem, 0, ram);
memory_region_add_subregion(address_space_mem, 0x1fc00000LL, bios);
- /* We do not support flash operation, just loading pmon.bin as raw BIOS.
- * Please use -L to set the BIOS path and -bios to set bios name. */
+ /*
+ * We do not support flash operation, just loading pmon.bin as raw BIOS.
+ * Please use -L to set the BIOS path and -bios to set bios name.
+ */
if (kernel_filename) {
loaderparams.ram_size = ram_size;
loaderparams.kernel_filename = kernel_filename;
loaderparams.kernel_cmdline = kernel_cmdline;
loaderparams.initrd_filename = initrd_filename;
- kernel_entry = load_kernel (env);
+ kernel_entry = load_kernel(env);
write_bootloader(env, memory_region_get_ram_ptr(bios), kernel_entry);
} else {
if (bios_name == NULL) {
generated by cgit v1.1 at 2024-12-29 17:18:40 +0000