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authorblueswir1 <blueswir1@c046a42c-6fe2-441c-8c8c-71466251a162>2007-11-14 19:35:16 +0000
committerblueswir1 <blueswir1@c046a42c-6fe2-441c-8c8c-71466251a162>2007-11-14 19:35:16 +0000
commitd2c63fc185f3d126ef177105166a491ab3556f5c (patch)
treed21ceb0ab6d570a90d55e6c772b4fb2266baf99b /hw/sun4m.c
parent57c26279c7bdef3cb181ea0afbd062a87d4ed6a0 (diff)
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Update OHW interface to version 3.
Use common ABI description file with OpenBIOS. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3648 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'hw/sun4m.c')
-rw-r--r--hw/sun4m.c159
1 files changed, 59 insertions, 100 deletions
diff --git a/hw/sun4m.c b/hw/sun4m.c
index b101087..d589b29 100644
--- a/hw/sun4m.c
+++ b/hw/sun4m.c
@@ -22,6 +22,9 @@
* THE SOFTWARE.
*/
#include "vl.h"
+#include "m48t59.h"
+#include "firmware_abi.h"
+
//#define DEBUG_IRQ
/*
@@ -102,131 +105,87 @@ void DMA_register_channel (int nchan,
{
}
-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 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 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;
static void nvram_init(m48t59_t *nvram, uint8_t *macaddr, const char *cmdline,
- const char *boot_device, uint32_t RAM_size,
+ const char *boot_devices, uint32_t RAM_size,
uint32_t kernel_size,
int width, int height, int depth,
int machine_id)
{
- unsigned char tmp = 0;
- unsigned int i, j;
+ unsigned int i;
uint32_t start, end;
+ uint8_t image[0x1ff0];
+ ohwcfg_v3_t *header = (ohwcfg_v3_t *)&image;
+ struct sparc_arch_cfg *sparc_header;
+ struct OpenBIOS_nvpart_v1 *part_header;
+
+ memset(image, '\0', sizeof(image));
// Try to match PPC NVRAM
- nvram_set_string(nvram, 0x00, "QEMU_BIOS", 16);
- nvram_set_lword(nvram, 0x10, 0x00000001); /* structure v1 */
- // NVRAM_size, arch not applicable
- m48t59_write(nvram, 0x2D, smp_cpus & 0xff);
- m48t59_write(nvram, 0x2E, 0);
- m48t59_write(nvram, 0x2F, nographic & 0xff);
- nvram_set_lword(nvram, 0x30, RAM_size);
- m48t59_write(nvram, 0x34, boot_device[0] & 0xff);
- nvram_set_lword(nvram, 0x38, KERNEL_LOAD_ADDR);
- nvram_set_lword(nvram, 0x3C, kernel_size);
+ strcpy(header->struct_ident, "QEMU_BIOS");
+ header->struct_version = cpu_to_be32(3); /* structure v3 */
+
+ header->nvram_size = cpu_to_be16(0x2000);
+ 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, "sun4m");
+ 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_LOAD_ADDR);
+ header->kernel_size = cpu_to_be64((uint64_t)kernel_size);
if (cmdline) {
strcpy(phys_ram_base + CMDLINE_ADDR, cmdline);
- nvram_set_lword(nvram, 0x40, CMDLINE_ADDR);
- nvram_set_lword(nvram, 0x44, strlen(cmdline));
+ header->cmdline = cpu_to_be64((uint64_t)CMDLINE_ADDR);
+ header->cmdline_size = cpu_to_be64((uint64_t)strlen(cmdline));
}
- // initrd_image, initrd_size passed differently
- nvram_set_word(nvram, 0x54, width);
- nvram_set_word(nvram, 0x56, height);
- nvram_set_word(nvram, 0x58, depth);
+ // XXX add initrd_image, initrd_size
+ 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);
+
+ 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 = 252;
- 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);
-
- // Sun4m specific use
- start = i = 0x1fd8;
- m48t59_write(nvram, i++, 0x01);
- m48t59_write(nvram, i++, machine_id);
- j = 0;
- m48t59_write(nvram, i++, macaddr[j++]);
- m48t59_write(nvram, i++, macaddr[j++]);
- m48t59_write(nvram, i++, macaddr[j++]);
- m48t59_write(nvram, i++, macaddr[j++]);
- m48t59_write(nvram, i++, macaddr[j++]);
- m48t59_write(nvram, i, macaddr[j]);
-
- /* Calculate checksum */
- for (i = start; i < start + 15; i++) {
- tmp ^= m48t59_read(nvram, i);
- }
- m48t59_write(nvram, start + 15, tmp);
+ OpenBIOS_finish_partition(part_header, end - start);
+
+ Sun_init_header((struct Sun_nvram *)&image[0x1fd8], macaddr, machine_id);
+
+ for (i = 0; i < sizeof(image); i++)
+ m48t59_write(nvram, i, image[i]);
}
static void *slavio_intctl;