diff options
Diffstat (limited to 'hw/ppc/ppc.c')
| -rw-r--r-- | hw/ppc/ppc.c | 161 |
1 files changed, 0 insertions, 161 deletions
diff --git a/hw/ppc/ppc.c b/hw/ppc/ppc.c index 5ce565d..99db56c 100644 --- a/hw/ppc/ppc.c +++ b/hw/ppc/ppc.c @@ -1318,167 +1318,6 @@ void PPC_debug_write (void *opaque, uint32_t addr, uint32_t val) } } -/*****************************************************************************/ -/* NVRAM helpers */ -static inline uint32_t nvram_read (nvram_t *nvram, uint32_t addr) -{ - return (*nvram->read_fn)(nvram->opaque, addr); -} - -static inline void nvram_write (nvram_t *nvram, uint32_t addr, uint32_t val) -{ - (*nvram->write_fn)(nvram->opaque, addr, val); -} - -static void NVRAM_set_byte(nvram_t *nvram, uint32_t addr, uint8_t value) -{ - nvram_write(nvram, addr, value); -} - -static uint8_t NVRAM_get_byte(nvram_t *nvram, uint32_t addr) -{ - return nvram_read(nvram, addr); -} - -static void NVRAM_set_word(nvram_t *nvram, uint32_t addr, uint16_t value) -{ - nvram_write(nvram, addr, value >> 8); - nvram_write(nvram, addr + 1, value & 0xFF); -} - -static uint16_t NVRAM_get_word(nvram_t *nvram, uint32_t addr) -{ - uint16_t tmp; - - tmp = nvram_read(nvram, addr) << 8; - tmp |= nvram_read(nvram, addr + 1); - - return tmp; -} - -static void NVRAM_set_lword(nvram_t *nvram, uint32_t addr, uint32_t value) -{ - nvram_write(nvram, addr, value >> 24); - nvram_write(nvram, addr + 1, (value >> 16) & 0xFF); - nvram_write(nvram, addr + 2, (value >> 8) & 0xFF); - nvram_write(nvram, addr + 3, value & 0xFF); -} - -uint32_t NVRAM_get_lword (nvram_t *nvram, uint32_t addr) -{ - uint32_t tmp; - - tmp = nvram_read(nvram, addr) << 24; - tmp |= nvram_read(nvram, addr + 1) << 16; - tmp |= nvram_read(nvram, addr + 2) << 8; - tmp |= nvram_read(nvram, addr + 3); - - return tmp; -} - -static void NVRAM_set_string(nvram_t *nvram, uint32_t addr, const char *str, - uint32_t max) -{ - int i; - - for (i = 0; i < max && str[i] != '\0'; i++) { - nvram_write(nvram, addr + i, str[i]); - } - nvram_write(nvram, addr + i, str[i]); - nvram_write(nvram, addr + max - 1, '\0'); -} - -int NVRAM_get_string (nvram_t *nvram, uint8_t *dst, uint16_t addr, int max) -{ - int i; - - memset(dst, 0, max); - for (i = 0; i < max; i++) { - dst[i] = NVRAM_get_byte(nvram, addr + i); - if (dst[i] == '\0') - break; - } - - return i; -} - -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 (nvram_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; -} - -#define CMDLINE_ADDR 0x017ff000 - -int PPC_NVRAM_set_params (nvram_t *nvram, uint16_t NVRAM_size, - const 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) -{ - uint16_t crc; - - /* 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_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); - if (cmdline) { - /* XXX: put the cmdline in NVRAM too ? */ - pstrcpy_targphys("cmdline", CMDLINE_ADDR, RAM_size - 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); - - 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; -} - /* CPU device-tree ID helpers */ int ppc_get_vcpu_dt_id(PowerPCCPU *cpu) { |