*/
#include "vl.h"
#include "m48t59.h"
+#include "firmware_abi.h"
#define KERNEL_LOAD_ADDR 0x00404000
#define CMDLINE_ADDR 0x003ff000
{
}
-/* NVRAM helpers */
-static void nvram_set_byte (m48t59_t *nvram, uint32_t addr, uint8_t value)
-{
- m48t59_write(nvram, addr, value);
-}
-
-static uint8_t nvram_get_byte (m48t59_t *nvram, uint32_t addr)
-{
- return m48t59_read(nvram, addr);
-}
-
-static void nvram_set_word (m48t59_t *nvram, uint32_t addr, uint16_t value)
-{
- m48t59_write(nvram, addr++, (value >> 8) & 0xff);
- m48t59_write(nvram, addr++, value & 0xff);
-}
-
-static uint16_t nvram_get_word (m48t59_t *nvram, uint32_t addr)
-{
- uint16_t tmp;
-
- tmp = m48t59_read(nvram, addr) << 8;
- tmp |= m48t59_read(nvram, addr + 1);
-
- return tmp;
-}
-
-static void nvram_set_lword (m48t59_t *nvram, uint32_t addr, uint32_t value)
-{
- m48t59_write(nvram, addr++, value >> 24);
- m48t59_write(nvram, addr++, (value >> 16) & 0xff);
- m48t59_write(nvram, addr++, (value >> 8) & 0xff);
- m48t59_write(nvram, addr++, value & 0xff);
-}
-
-static void nvram_set_string (m48t59_t *nvram, uint32_t addr,
- const unsigned char *str, uint32_t max)
-{
- unsigned int i;
-
- for (i = 0; i < max && str[i] != '\0'; i++) {
- m48t59_write(nvram, addr + i, str[i]);
- }
- m48t59_write(nvram, addr + max - 1, '\0');
-}
-
-static uint16_t nvram_crc_update (uint16_t prev, uint16_t value)
-{
- uint16_t tmp;
- uint16_t pd, pd1, pd2;
-
- tmp = prev >> 8;
- pd = prev ^ value;
- pd1 = pd & 0x000F;
- pd2 = ((pd >> 4) & 0x000F) ^ pd1;
- tmp ^= (pd1 << 3) | (pd1 << 8);
- tmp ^= pd2 | (pd2 << 7) | (pd2 << 12);
-
- return tmp;
-}
-
-static uint16_t nvram_compute_crc (m48t59_t *nvram, uint32_t start,
- uint32_t count)
-{
- uint32_t i;
- uint16_t crc = 0xFFFF;
- int odd;
-
- odd = count & 1;
- count &= ~1;
- for (i = 0; i != count; i++) {
- crc = nvram_crc_update(crc, nvram_get_word(nvram, start + i));
- }
- if (odd) {
- crc = nvram_crc_update(crc, nvram_get_byte(nvram, start + i) << 8);
- }
-
- return crc;
-}
-
-static uint32_t nvram_set_var (m48t59_t *nvram, uint32_t addr,
- const unsigned char *str)
-{
- uint32_t len;
-
- len = strlen(str) + 1;
- nvram_set_string(nvram, addr, str, len);
-
- return addr + len;
-}
-
-static void nvram_finish_partition (m48t59_t *nvram, uint32_t start,
- uint32_t end)
-{
- unsigned int i, sum;
-
- // Length divided by 16
- m48t59_write(nvram, start + 2, ((end - start) >> 12) & 0xff);
- m48t59_write(nvram, start + 3, ((end - start) >> 4) & 0xff);
- // Checksum
- sum = m48t59_read(nvram, start);
- for (i = 0; i < 14; i++) {
- sum += m48t59_read(nvram, start + 2 + i);
- sum = (sum + ((sum & 0xff00) >> 8)) & 0xff;
- }
- m48t59_write(nvram, start + 1, sum & 0xff);
-}
-
extern int nographic;
-int sun4u_NVRAM_set_params (m48t59_t *nvram, uint16_t NVRAM_size,
- const unsigned char *arch,
- uint32_t RAM_size, int boot_device,
- uint32_t kernel_image, uint32_t kernel_size,
- const char *cmdline,
- uint32_t initrd_image, uint32_t initrd_size,
- uint32_t NVRAM_image,
- int width, int height, int depth)
+static int sun4u_NVRAM_set_params (m48t59_t *nvram, uint16_t NVRAM_size,
+ const unsigned char *arch,
+ uint32_t RAM_size, const char *boot_devices,
+ uint32_t kernel_image, uint32_t kernel_size,
+ const char *cmdline,
+ uint32_t initrd_image, uint32_t initrd_size,
+ uint32_t NVRAM_image,
+ int width, int height, int depth)
{
- uint16_t crc;
unsigned int i;
uint32_t start, end;
-
- /* Set parameters for Open Hack'Ware BIOS */
- nvram_set_string(nvram, 0x00, "QEMU_BIOS", 16);
- nvram_set_lword(nvram, 0x10, 0x00000002); /* structure v2 */
- nvram_set_word(nvram, 0x14, NVRAM_size);
- nvram_set_string(nvram, 0x20, arch, 16);
- nvram_set_byte(nvram, 0x2f, nographic & 0xff);
- nvram_set_lword(nvram, 0x30, RAM_size);
- nvram_set_byte(nvram, 0x34, boot_device);
- nvram_set_lword(nvram, 0x38, kernel_image);
- nvram_set_lword(nvram, 0x3C, kernel_size);
+ uint8_t image[0x1ff0];
+ ohwcfg_v3_t *header = (ohwcfg_v3_t *)ℑ
+ struct sparc_arch_cfg *sparc_header;
+ struct OpenBIOS_nvpart_v1 *part_header;
+
+ memset(image, '\0', sizeof(image));
+
+ // Try to match PPC NVRAM
+ strcpy(header->struct_ident, "QEMU_BIOS");
+ header->struct_version = cpu_to_be32(3); /* structure v3 */
+
+ header->nvram_size = cpu_to_be16(NVRAM_size);
+ header->nvram_arch_ptr = cpu_to_be16(sizeof(ohwcfg_v3_t));
+ header->nvram_arch_size = cpu_to_be16(sizeof(struct sparc_arch_cfg));
+ strcpy(header->arch, arch);
+ header->nb_cpus = smp_cpus & 0xff;
+ header->RAM0_base = 0;
+ header->RAM0_size = cpu_to_be64((uint64_t)RAM_size);
+ strcpy(header->boot_devices, boot_devices);
+ header->nboot_devices = strlen(boot_devices) & 0xff;
+ header->kernel_image = cpu_to_be64((uint64_t)kernel_image);
+ header->kernel_size = cpu_to_be64((uint64_t)kernel_size);
if (cmdline) {
- /* XXX: put the cmdline in NVRAM too ? */
strcpy(phys_ram_base + CMDLINE_ADDR, cmdline);
- nvram_set_lword(nvram, 0x40, CMDLINE_ADDR);
- nvram_set_lword(nvram, 0x44, strlen(cmdline));
- } else {
- nvram_set_lword(nvram, 0x40, 0);
- nvram_set_lword(nvram, 0x44, 0);
+ header->cmdline = cpu_to_be64((uint64_t)CMDLINE_ADDR);
+ header->cmdline_size = cpu_to_be64((uint64_t)strlen(cmdline));
}
- nvram_set_lword(nvram, 0x48, initrd_image);
- nvram_set_lword(nvram, 0x4C, initrd_size);
- nvram_set_lword(nvram, 0x50, NVRAM_image);
+ header->initrd_image = cpu_to_be64((uint64_t)initrd_image);
+ header->initrd_size = cpu_to_be64((uint64_t)initrd_size);
+ header->NVRAM_image = cpu_to_be64((uint64_t)NVRAM_image);
+
+ header->width = cpu_to_be16(width);
+ header->height = cpu_to_be16(height);
+ header->depth = cpu_to_be16(depth);
+ if (nographic)
+ header->graphic_flags = cpu_to_be16(OHW_GF_NOGRAPHICS);
- nvram_set_word(nvram, 0x54, width);
- nvram_set_word(nvram, 0x56, height);
- nvram_set_word(nvram, 0x58, depth);
- crc = nvram_compute_crc(nvram, 0x00, 0xF8);
- nvram_set_word(nvram, 0xFC, crc);
+ header->crc = cpu_to_be16(OHW_compute_crc(header, 0x00, 0xF8));
+
+ // Architecture specific header
+ start = sizeof(ohwcfg_v3_t);
+ sparc_header = (struct sparc_arch_cfg *)&image[start];
+ sparc_header->valid = 0;
+ start += sizeof(struct sparc_arch_cfg);
// OpenBIOS nvram variables
// Variable partition
- start = 256;
- m48t59_write(nvram, start, 0x70);
- nvram_set_string(nvram, start + 4, "system", 12);
+ part_header = (struct OpenBIOS_nvpart_v1 *)&image[start];
+ part_header->signature = OPENBIOS_PART_SYSTEM;
+ strcpy(part_header->name, "system");
- end = start + 16;
+ end = start + sizeof(struct OpenBIOS_nvpart_v1);
for (i = 0; i < nb_prom_envs; i++)
- end = nvram_set_var(nvram, end, prom_envs[i]);
+ end = OpenBIOS_set_var(image, end, prom_envs[i]);
+
+ // End marker
+ image[end++] = '\0';
- m48t59_write(nvram, end++ , 0);
end = start + ((end - start + 15) & ~15);
- nvram_finish_partition(nvram, start, end);
+ OpenBIOS_finish_partition(part_header, end - start);
// free partition
start = end;
- m48t59_write(nvram, start, 0x7f);
- nvram_set_string(nvram, start + 4, "free", 12);
+ part_header = (struct OpenBIOS_nvpart_v1 *)&image[start];
+ part_header->signature = OPENBIOS_PART_FREE;
+ strcpy(part_header->name, "free");
end = 0x1fd0;
- nvram_finish_partition(nvram, start, end);
+ OpenBIOS_finish_partition(part_header, end - start);
+
+ for (i = 0; i < sizeof(image); i++)
+ m48t59_write(nvram, i, image[i]);
return 0;
}
static fdctrl_t *floppy_controller;
/* Sun4u hardware initialisation */
-static void sun4u_init(int ram_size, int vga_ram_size, const char *boot_device,
+static void sun4u_init(int ram_size, int vga_ram_size, const char *boot_devices,
DisplayState *ds, const char **fd_filename, int snapshot,
const char *kernel_filename, const char *kernel_cmdline,
const char *initrd_filename, const char *cpu_model)
i8042_init(NULL/*1*/, NULL/*12*/, 0x60);
floppy_controller = fdctrl_init(NULL/*6*/, 2, 0, 0x3f0, fd_table);
nvram = m48t59_init(NULL/*8*/, 0, 0x0074, NVRAM_SIZE, 59);
- sun4u_NVRAM_set_params(nvram, NVRAM_SIZE, "Sun4u", ram_size, boot_device[0],
+ sun4u_NVRAM_set_params(nvram, NVRAM_SIZE, "Sun4u", ram_size, boot_devices,
KERNEL_LOAD_ADDR, kernel_size,
kernel_cmdline,
INITRD_LOAD_ADDR, initrd_size,
projects / mirror_qemu.git / blobdiff