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Diffstat (limited to 'hw/sun4m.c')
-rw-r--r--hw/sun4m.c110
1 files changed, 84 insertions, 26 deletions
diff --git a/hw/sun4m.c b/hw/sun4m.c
index 0af062d967..b186b23f13 100644
--- a/hw/sun4m.c
+++ b/hw/sun4m.c
@@ -36,7 +36,10 @@
// IRQs are not PIL ones, but master interrupt controller register
// bits
#define PHYS_JJ_IOMMU 0x10000000 /* I/O MMU */
-#define PHYS_JJ_TCX_FB 0x50800000 /* Start address, frame buffer body */
+#define PHYS_JJ_TCX_FB 0x50000000 /* TCX frame buffer */
+#define PHYS_JJ_ESPDMA 0x78400000 /* ESP DMA controller */
+#define PHYS_JJ_ESP 0x78800000 /* ESP SCSI */
+#define PHYS_JJ_ESP_IRQ 18
#define PHYS_JJ_LEDMA 0x78400010 /* Lance DMA controller */
#define PHYS_JJ_LE 0x78C00000 /* Lance ethernet */
#define PHYS_JJ_LE_IRQ 16
@@ -50,7 +53,6 @@
#define PHYS_JJ_MS_KBD_IRQ 14
#define PHYS_JJ_SER 0x71100000 /* Serial */
#define PHYS_JJ_SER_IRQ 15
-#define PHYS_JJ_SCSI_IRQ 18
#define PHYS_JJ_FDC 0x71400000 /* Floppy */
#define PHYS_JJ_FLOPPY_IRQ 22
@@ -61,32 +63,86 @@ uint64_t cpu_get_tsc()
return qemu_get_clock(vm_clock);
}
-void DMA_run() {}
+int DMA_get_channel_mode (int nchan)
+{
+ return 0;
+}
+int DMA_read_memory (int nchan, void *buf, int pos, int size)
+{
+ return 0;
+}
+int DMA_write_memory (int nchan, void *buf, int pos, int size)
+{
+ return 0;
+}
+void DMA_hold_DREQ (int nchan) {}
+void DMA_release_DREQ (int nchan) {}
+void DMA_schedule(int nchan) {}
+void DMA_run (void) {}
+void DMA_init (int high_page_enable) {}
+void DMA_register_channel (int nchan,
+ DMA_transfer_handler transfer_handler,
+ void *opaque)
+{
+}
+
+static void nvram_set_word (m48t08_t *nvram, uint32_t addr, uint16_t value)
+{
+ m48t08_write(nvram, addr++, (value >> 8) & 0xff);
+ m48t08_write(nvram, addr++, value & 0xff);
+}
+
+static void nvram_set_lword (m48t08_t *nvram, uint32_t addr, uint32_t value)
+{
+ m48t08_write(nvram, addr++, value >> 24);
+ m48t08_write(nvram, addr++, (value >> 16) & 0xff);
+ m48t08_write(nvram, addr++, (value >> 8) & 0xff);
+ m48t08_write(nvram, addr++, value & 0xff);
+}
+
+static void nvram_set_string (m48t08_t *nvram, uint32_t addr,
+ const unsigned char *str, uint32_t max)
+{
+ unsigned int i;
+
+ for (i = 0; i < max && str[i] != '\0'; i++) {
+ m48t08_write(nvram, addr + i, str[i]);
+ }
+ m48t08_write(nvram, addr + max - 1, '\0');
+}
static m48t08_t *nvram;
-static void nvram_init(m48t08_t *nvram, uint8_t *macaddr, const char *cmdline)
+extern int nographic;
+
+static void nvram_init(m48t08_t *nvram, uint8_t *macaddr, const char *cmdline,
+ int boot_device, uint32_t RAM_size,
+ uint32_t kernel_size,
+ int width, int height, int depth)
{
unsigned char tmp = 0;
int i, j;
- i = 0x40;
+ // 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
+ m48t08_write(nvram, 0x2F, nographic & 0xff);
+ nvram_set_lword(nvram, 0x30, RAM_size);
+ m48t08_write(nvram, 0x34, boot_device & 0xff);
+ nvram_set_lword(nvram, 0x38, KERNEL_LOAD_ADDR);
+ nvram_set_lword(nvram, 0x3C, kernel_size);
if (cmdline) {
- uint32_t cmdline_len;
-
strcpy(phys_ram_base + CMDLINE_ADDR, cmdline);
- m48t08_write(nvram, i++, CMDLINE_ADDR >> 24);
- m48t08_write(nvram, i++, (CMDLINE_ADDR >> 16) & 0xff);
- m48t08_write(nvram, i++, (CMDLINE_ADDR >> 8) & 0xff);
- m48t08_write(nvram, i++, CMDLINE_ADDR & 0xff);
-
- cmdline_len = strlen(cmdline);
- m48t08_write(nvram, i++, cmdline_len >> 24);
- m48t08_write(nvram, i++, (cmdline_len >> 16) & 0xff);
- m48t08_write(nvram, i++, (cmdline_len >> 8) & 0xff);
- m48t08_write(nvram, i++, cmdline_len & 0xff);
+ nvram_set_lword(nvram, 0x40, CMDLINE_ADDR);
+ nvram_set_lword(nvram, 0x44, 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);
+ // Sun4m specific use
i = 0x1fd8;
m48t08_write(nvram, i++, 0x01);
m48t08_write(nvram, i++, 0x80); /* Sun4m OBP */
@@ -155,7 +211,7 @@ void sun4m_init(int ram_size, int vga_ram_size, int boot_device,
char buf[1024];
int ret, linux_boot;
unsigned int i;
- unsigned long vram_size = 0x100000, prom_offset, initrd_size;
+ long vram_size = 0x100000, prom_offset, initrd_size, kernel_size;
linux_boot = (kernel_filename != NULL);
@@ -164,14 +220,14 @@ void sun4m_init(int ram_size, int vga_ram_size, int boot_device,
iommu = iommu_init(PHYS_JJ_IOMMU);
slavio_intctl = slavio_intctl_init(PHYS_JJ_INTR0, PHYS_JJ_INTR_G);
- tcx = tcx_init(ds, PHYS_JJ_TCX_FB, phys_ram_base + ram_size, ram_size, vram_size);
+ tcx = tcx_init(ds, PHYS_JJ_TCX_FB, phys_ram_base + ram_size, ram_size, vram_size, graphic_width, graphic_height);
lance_init(&nd_table[0], PHYS_JJ_LE_IRQ, PHYS_JJ_LE, PHYS_JJ_LEDMA);
nvram = m48t08_init(PHYS_JJ_EEPROM, PHYS_JJ_EEPROM_SIZE);
- nvram_init(nvram, (uint8_t *)&nd_table[0].macaddr, kernel_cmdline);
slavio_timer_init(PHYS_JJ_CLOCK, PHYS_JJ_CLOCK_IRQ, PHYS_JJ_CLOCK1, PHYS_JJ_CLOCK1_IRQ);
slavio_serial_ms_kbd_init(PHYS_JJ_MS_KBD, PHYS_JJ_MS_KBD_IRQ);
slavio_serial_init(PHYS_JJ_SER, PHYS_JJ_SER_IRQ, serial_hds[0], serial_hds[1]);
fdctrl_init(PHYS_JJ_FLOPPY_IRQ, 0, 1, PHYS_JJ_FDC, fd_table);
+ esp_init(bs_table, PHYS_JJ_ESP_IRQ, PHYS_JJ_ESP, PHYS_JJ_ESPDMA);
prom_offset = ram_size + vram_size;
@@ -189,13 +245,14 @@ void sun4m_init(int ram_size, int vga_ram_size, int boot_device,
cpu_register_physical_memory(PROM_ADDR, (ret + TARGET_PAGE_SIZE) & TARGET_PAGE_MASK,
prom_offset | IO_MEM_ROM);
+ kernel_size = 0;
if (linux_boot) {
- ret = load_elf(kernel_filename, phys_ram_base + KERNEL_LOAD_ADDR);
- if (ret < 0)
- ret = load_aout(kernel_filename, phys_ram_base + KERNEL_LOAD_ADDR);
- if (ret < 0)
- ret = load_image(kernel_filename, phys_ram_base + KERNEL_LOAD_ADDR);
- if (ret < 0) {
+ kernel_size = load_elf(kernel_filename, phys_ram_base + KERNEL_LOAD_ADDR);
+ if (kernel_size < 0)
+ kernel_size = load_aout(kernel_filename, phys_ram_base + KERNEL_LOAD_ADDR);
+ if (kernel_size < 0)
+ kernel_size = load_image(kernel_filename, phys_ram_base + KERNEL_LOAD_ADDR);
+ if (kernel_size < 0) {
fprintf(stderr, "qemu: could not load kernel '%s'\n",
kernel_filename);
exit(1);
@@ -222,4 +279,5 @@ void sun4m_init(int ram_size, int vga_ram_size, int boot_device,
}
}
}
+ nvram_init(nvram, (uint8_t *)&nd_table[0].macaddr, kernel_cmdline, boot_device, ram_size, kernel_size, graphic_width, graphic_height, graphic_depth);
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-30 21:00:13 +0000