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-rw-r--r--hw/sun4m.c163
1 files changed, 117 insertions, 46 deletions
diff --git a/hw/sun4m.c b/hw/sun4m.c
index 80305e09c..7cc5bd8d9 100644
--- a/hw/sun4m.c
+++ b/hw/sun4m.c
@@ -25,29 +25,32 @@
#include "m48t08.h"
#define KERNEL_LOAD_ADDR 0x00004000
-#define MMU_CONTEXT_TBL 0x00003000
-#define MMU_L1PTP (MMU_CONTEXT_TBL + 0x0400)
-#define MMU_L2PTP (MMU_CONTEXT_TBL + 0x0800)
-#define PROM_ADDR 0xffd04000
+#define PROM_ADDR 0xffd00000
#define PROM_FILENAMEB "proll.bin"
#define PROM_FILENAMEE "proll.elf"
-#define PROLL_MAGIC_ADDR 0x20000000
-#define PHYS_JJ_EEPROM 0x71200000 /* [2000] MK48T08 */
+#define PHYS_JJ_EEPROM 0x71200000 /* m48t08 */
#define PHYS_JJ_IDPROM_OFF 0x1FD8
#define PHYS_JJ_EEPROM_SIZE 0x2000
-#define PHYS_JJ_IOMMU 0x10000000 /* First page of sun4m IOMMU */
+// 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_0E 0x5E000000 /* Top address, one byte used. */
-#define PHYS_JJ_IOMMU 0x10000000 /* First page of sun4m IOMMU */
-#define PHYS_JJ_LEDMA 0x78400010 /* ledma, off by 10 from unused SCSI */
-#define PHYS_JJ_LE 0x78C00000 /* LANCE, typical sun4m */
-#define PHYS_JJ_LE_IRQ 6
-#define PHYS_JJ_CLOCK 0x71D00000
-#define PHYS_JJ_CLOCK_IRQ 10
-#define PHYS_JJ_CLOCK1 0x71D10000
-#define PHYS_JJ_CLOCK1_IRQ 14
-#define PHYS_JJ_INTR0 0x71E00000 /* CPU0 interrupt control registers */
+#define PHYS_JJ_LEDMA 0x78400010 /* Lance DMA controller */
+#define PHYS_JJ_LE 0x78C00000 /* Lance ethernet */
+#define PHYS_JJ_LE_IRQ 16
+#define PHYS_JJ_CLOCK 0x71D00000 /* Per-CPU timer/counter, L14 */
+#define PHYS_JJ_CLOCK_IRQ 7
+#define PHYS_JJ_CLOCK1 0x71D10000 /* System timer/counter, L10 */
+#define PHYS_JJ_CLOCK1_IRQ 19
+#define PHYS_JJ_INTR0 0x71E00000 /* Per-CPU interrupt control registers */
#define PHYS_JJ_INTR_G 0x71E10000 /* Master interrupt control registers */
+#define PHYS_JJ_MS_KBD 0x71000000 /* Mouse and keyboard */
+#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
/* TSC handling */
@@ -57,13 +60,73 @@ uint64_t cpu_get_tsc()
}
void DMA_run() {}
-void SB16_run() {}
-int serial_can_receive(SerialState *s) { return 0; }
-void serial_receive_byte(SerialState *s, int ch) {}
-void serial_receive_break(SerialState *s) {}
static m48t08_t *nvram;
+static void nvram_init(m48t08_t *nvram, uint8_t *macaddr)
+{
+ unsigned char tmp = 0;
+ int i, j;
+
+ i = 0x1fd8;
+ m48t08_write(nvram, i++, 0x01);
+ m48t08_write(nvram, i++, 0x80); /* Sun4m OBP */
+ j = 0;
+ m48t08_write(nvram, i++, macaddr[j++]);
+ m48t08_write(nvram, i++, macaddr[j++]);
+ m48t08_write(nvram, i++, macaddr[j++]);
+ m48t08_write(nvram, i++, macaddr[j++]);
+ m48t08_write(nvram, i++, macaddr[j++]);
+ m48t08_write(nvram, i, macaddr[j]);
+
+ /* Calculate checksum */
+ for (i = 0x1fd8; i < 0x1fe7; i++) {
+ tmp ^= m48t08_read(nvram, i);
+ }
+ m48t08_write(nvram, 0x1fe7, tmp);
+}
+
+static void *slavio_intctl;
+
+void pic_info()
+{
+ slavio_pic_info(slavio_intctl);
+}
+
+void irq_info()
+{
+ slavio_irq_info(slavio_intctl);
+}
+
+void pic_set_irq(int irq, int level)
+{
+ slavio_pic_set_irq(slavio_intctl, irq, level);
+}
+
+static void *tcx;
+
+void vga_update_display()
+{
+ tcx_update_display(tcx);
+}
+
+void vga_invalidate_display()
+{
+ tcx_invalidate_display(tcx);
+}
+
+void vga_screen_dump(const char *filename)
+{
+ tcx_screen_dump(tcx, filename);
+}
+
+static void *iommu;
+
+uint32_t iommu_translate(uint32_t addr)
+{
+ return iommu_translate_local(iommu, addr);
+}
+
/* Sun4m hardware initialisation */
void sun4m_init(int ram_size, int vga_ram_size, int boot_device,
DisplayState *ds, const char **fd_filename, int snapshot,
@@ -72,42 +135,50 @@ void sun4m_init(int ram_size, int vga_ram_size, int boot_device,
{
char buf[1024];
int ret, linux_boot;
- unsigned long bios_offset;
+ unsigned long vram_size = 0x100000, prom_offset;
linux_boot = (kernel_filename != NULL);
/* allocate RAM */
cpu_register_physical_memory(0, ram_size, 0);
- bios_offset = ram_size;
- iommu_init(PHYS_JJ_IOMMU);
- sched_init(PHYS_JJ_INTR0, PHYS_JJ_INTR_G);
- tcx_init(ds, PHYS_JJ_TCX_FB);
+ 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);
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, &nd_table[0].macaddr);
- timer_init(PHYS_JJ_CLOCK, PHYS_JJ_CLOCK_IRQ);
- timer_init(PHYS_JJ_CLOCK1, PHYS_JJ_CLOCK1_IRQ);
- magic_init(kernel_filename, phys_ram_base + KERNEL_LOAD_ADDR, PROLL_MAGIC_ADDR);
+ nvram = m48t08_init(PHYS_JJ_EEPROM, PHYS_JJ_EEPROM_SIZE);
+ nvram_init(nvram, (uint8_t *)&nd_table[0].macaddr);
+ 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);
- /* We load Proll as the kernel and start it. It will issue a magic
- IO to load the real kernel */
- if (linux_boot) {
+ prom_offset = ram_size + vram_size;
+
+ snprintf(buf, sizeof(buf), "%s/%s", bios_dir, PROM_FILENAMEE);
+ ret = load_elf(buf, phys_ram_base + prom_offset);
+ if (ret < 0) {
snprintf(buf, sizeof(buf), "%s/%s", bios_dir, PROM_FILENAMEB);
- ret = load_kernel(buf,
- phys_ram_base + KERNEL_LOAD_ADDR);
+ ret = load_image(buf, phys_ram_base + prom_offset);
+ }
+ if (ret < 0) {
+ fprintf(stderr, "qemu: could not load prom '%s'\n",
+ buf);
+ exit(1);
+ }
+ cpu_register_physical_memory(PROM_ADDR, (ret + TARGET_PAGE_SIZE) & TARGET_PAGE_MASK,
+ prom_offset | IO_MEM_ROM);
+
+ 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) {
fprintf(stderr, "qemu: could not load kernel '%s'\n",
- buf);
- exit(1);
+ kernel_filename);
+ exit(1);
}
}
- /* Setup a MMU entry for entire address space */
- stl_raw(phys_ram_base + MMU_CONTEXT_TBL, (MMU_L1PTP >> 4) | 1);
- stl_raw(phys_ram_base + MMU_L1PTP, (MMU_L2PTP >> 4) | 1);
- stl_raw(phys_ram_base + MMU_L1PTP + (0x01 << 2), (MMU_L2PTP >> 4) | 1); // 01.. == 00..
- stl_raw(phys_ram_base + MMU_L1PTP + (0xff << 2), (MMU_L2PTP >> 4) | 1); // ff.. == 00..
- stl_raw(phys_ram_base + MMU_L1PTP + (0xf0 << 2), (MMU_L2PTP >> 4) | 1); // f0.. == 00..
- /* 3 = U:RWX S:RWX */
- stl_raw(phys_ram_base + MMU_L2PTP, (3 << PTE_ACCESS_SHIFT) | 2);
- stl_raw(phys_ram_base + MMU_L2PTP, ((0x01 << PTE_PPN_SHIFT) >> 4 ) | (3 << PTE_ACCESS_SHIFT) | 2);
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-29 21:25:03 +0000