diff options
Diffstat (limited to 'hw/ppc.c')
| -rw-r--r-- | hw/ppc.c | 35 |
1 files changed, 26 insertions, 9 deletions
@@ -22,6 +22,7 @@ * THE SOFTWARE. */ #include "vl.h" +#include "m48t59.h" /*****************************************************************************/ /* PPC time base and decrementer emulation */ @@ -109,7 +110,7 @@ uint32_t cpu_ppc_load_decr (CPUState *env) decr = muldiv64(tb_env->decr_next - qemu_get_clock(vm_clock), tb_env->tb_freq, ticks_per_sec); -#ifdef DEBUG_TB +#if defined(DEBUG_TB) printf("%s: 0x%08x\n", __func__, decr); #endif @@ -257,7 +258,7 @@ CPUReadMemoryFunc *PPC_io_read[] = { /*****************************************************************************/ /* Debug port */ -void PREP_debug_write (void *opaque, uint32_t addr, uint32_t val) +void PPC_debug_write (void *opaque, uint32_t addr, uint32_t val) { addr &= 0xF; switch (addr) { @@ -270,7 +271,7 @@ void PREP_debug_write (void *opaque, uint32_t addr, uint32_t val) break; case 2: printf("Set loglevel to %04x\n", val); - cpu_set_log(val); + cpu_set_log(val | 0x100); break; } } @@ -397,13 +398,16 @@ uint16_t NVRAM_compute_crc (m48t59_t *nvram, uint32_t start, uint32_t count) return crc; } +#define CMDLINE_ADDR 0x017ff000 + int PPC_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, - uint32_t cmdline, uint32_t cmdline_size, + const char *cmdline, uint32_t initrd_image, uint32_t initrd_size, - uint32_t NVRAM_image) + uint32_t NVRAM_image, + int width, int height, int depth) { uint16_t crc; @@ -416,13 +420,24 @@ int PPC_NVRAM_set_params (m48t59_t *nvram, uint16_t NVRAM_size, NVRAM_set_byte(nvram, 0x34, boot_device); NVRAM_set_lword(nvram, 0x38, kernel_image); NVRAM_set_lword(nvram, 0x3C, kernel_size); - NVRAM_set_lword(nvram, 0x40, cmdline); - NVRAM_set_lword(nvram, 0x44, cmdline_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); + } NVRAM_set_lword(nvram, 0x48, initrd_image); NVRAM_set_lword(nvram, 0x4C, initrd_size); NVRAM_set_lword(nvram, 0x50, NVRAM_image); - crc = NVRAM_compute_crc(nvram, 0x00, 0x5C); - NVRAM_set_word(nvram, 0x5C, crc); + + 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); return 0; } @@ -442,4 +457,6 @@ void ppc_init (int ram_size, int vga_ram_size, int boot_device, snapshot, kernel_filename, kernel_cmdline, initrd_filename); } + /* Special port to get debug messages from Open-Firmware */ + register_ioport_write(0x0F00, 4, 1, &PPC_debug_write, NULL); } |