PowerPC prep/chrp/pmac support

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@865 c046a42c-6fe2-441c-8c8c-71466251a162

Makefile.target

@@ -244,8 +244,8 @@ ifeq ($(TARGET_ARCH), ppc)
 VL_OBJS+= ppc.o
 # PREP hardware support
 VL_OBJS+= ide.o ne2000.o pckbd.o vga.o sb16.o dma.o oss.o
-VL_OBJS+= mc146818rtc.o serial.o i8259.o i8254.o fdc.o m48t59.o ppc_prep.o
-#VL_OBJS+= hw.o of.o setup.o
+VL_OBJS+= mc146818rtc.o serial.o i8259.o i8254.o fdc.o m48t59.o
+VL_OBJS+= ppc_prep.o ppc_chrp.o
 endif
 ifdef CONFIG_GDBSTUB
 VL_OBJS+=gdbstub.o 

hw/ppc.c

@@ -23,11 +23,6 @@
  */
 #include "vl.h"
 
-void ppc_prep_init (int ram_size, int vga_ram_size, int boot_device,
-		    DisplayState *ds, const char **fd_filename, int snapshot,
-		    const char *kernel_filename, const char *kernel_cmdline,
-		    const char *initrd_filename);
-
 /*****************************************************************************/
 /* PPC time base and decrementer emulation */
 //#define DEBUG_TB
@@ -202,14 +197,249 @@ void cpu_ppc_reset (CPUState *env)
 }
 #endif
 
+static void PPC_io_writeb (target_phys_addr_t addr, uint32_t value)
+{
+    cpu_outb(NULL, addr & 0xffff, value);
+}
+
+static uint32_t PPC_io_readb (target_phys_addr_t addr)
+{
+    uint32_t ret = cpu_inb(NULL, addr & 0xffff);
+    return ret;
+}
+
+static void PPC_io_writew (target_phys_addr_t addr, uint32_t value)
+{
+#ifdef TARGET_WORDS_BIGENDIAN
+    value = bswap16(value);
+#endif
+    cpu_outw(NULL, addr & 0xffff, value);
+}
+
+static uint32_t PPC_io_readw (target_phys_addr_t addr)
+{
+    uint32_t ret = cpu_inw(NULL, addr & 0xffff);
+#ifdef TARGET_WORDS_BIGENDIAN
+    ret = bswap16(ret);
+#endif
+    return ret;
+}
+
+static void PPC_io_writel (target_phys_addr_t addr, uint32_t value)
+{
+#ifdef TARGET_WORDS_BIGENDIAN
+    value = bswap32(value);
+#endif
+    cpu_outl(NULL, addr & 0xffff, value);
+}
+
+static uint32_t PPC_io_readl (target_phys_addr_t addr)
+{
+    uint32_t ret = cpu_inl(NULL, addr & 0xffff);
+
+#ifdef TARGET_WORDS_BIGENDIAN
+    ret = bswap32(ret);
+#endif
+    return ret;
+}
+
+CPUWriteMemoryFunc *PPC_io_write[] = {
+    &PPC_io_writeb,
+    &PPC_io_writew,
+    &PPC_io_writel,
+};
+
+CPUReadMemoryFunc *PPC_io_read[] = {
+    &PPC_io_readb,
+    &PPC_io_readw,
+    &PPC_io_readl,
+};
+
+/*****************************************************************************/
+/* Debug port */
+void PREP_debug_write (void *opaque, uint32_t addr, uint32_t val)
+{
+    addr &= 0xF;
+    switch (addr) {
+    case 0:
+        printf("%c", val);
+        break;
+    case 1:
+        printf("\n");
+        fflush(stdout);
+        break;
+    case 2:
+        printf("Set loglevel to %04x\n", val);
+        cpu_set_log(val);
+        break;
+    }
+}
+
+/*****************************************************************************/
+/* NVRAM helpers */
+void NVRAM_set_byte (m48t59_t *nvram, uint32_t addr, uint8_t value)
+{
+    m48t59_set_addr(nvram, addr);
+    m48t59_write(nvram, value);
+}
+
+uint8_t NVRAM_get_byte (m48t59_t *nvram, uint32_t addr)
+{
+    m48t59_set_addr(nvram, addr);
+    return m48t59_read(nvram);
+}
+
+void NVRAM_set_word (m48t59_t *nvram, uint32_t addr, uint16_t value)
+{
+    m48t59_set_addr(nvram, addr);
+    m48t59_write(nvram, value >> 8);
+    m48t59_set_addr(nvram, addr + 1);
+    m48t59_write(nvram, value & 0xFF);
+}
+
+uint16_t NVRAM_get_word (m48t59_t *nvram, uint32_t addr)
+{
+    uint16_t tmp;
+
+    m48t59_set_addr(nvram, addr);
+    tmp = m48t59_read(nvram) << 8;
+    m48t59_set_addr(nvram, addr + 1);
+    tmp |= m48t59_read(nvram);
+
+    return tmp;
+}
+
+void NVRAM_set_lword (m48t59_t *nvram, uint32_t addr, uint32_t value)
+{
+    m48t59_set_addr(nvram, addr);
+    m48t59_write(nvram, value >> 24);
+    m48t59_set_addr(nvram, addr + 1);
+    m48t59_write(nvram, (value >> 16) & 0xFF);
+    m48t59_set_addr(nvram, addr + 2);
+    m48t59_write(nvram, (value >> 8) & 0xFF);
+    m48t59_set_addr(nvram, addr + 3);
+    m48t59_write(nvram, value & 0xFF);
+}
+
+uint32_t NVRAM_get_lword (m48t59_t *nvram, uint32_t addr)
+{
+    uint32_t tmp;
+
+    m48t59_set_addr(nvram, addr);
+    tmp = m48t59_read(nvram) << 24;
+    m48t59_set_addr(nvram, addr + 1);
+    tmp |= m48t59_read(nvram) << 16;
+    m48t59_set_addr(nvram, addr + 2);
+    tmp |= m48t59_read(nvram) << 8;
+    m48t59_set_addr(nvram, addr + 3);
+    tmp |= m48t59_read(nvram);
+
+    return tmp;
+}
+
+void NVRAM_set_string (m48t59_t *nvram, uint32_t addr,
+                       const unsigned char *str, uint32_t max)
+{
+    int i;
+
+    for (i = 0; i < max && str[i] != '\0'; i++) {
+        m48t59_set_addr(nvram, addr + i);
+        m48t59_write(nvram, str[i]);
+    }
+    m48t59_set_addr(nvram, addr + max - 1);
+    m48t59_write(nvram, '\0');
+}
+
+int NVRAM_get_string (m48t59_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;
+}
+
+uint16_t NVRAM_compute_crc (m48t59_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;
+}
+
+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,
+                          uint32_t initrd_image, uint32_t initrd_size,
+                          uint32_t NVRAM_image)
+{
+    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);
+    NVRAM_set_lword(nvram,  0x40, cmdline);
+    NVRAM_set_lword(nvram,  0x44, cmdline_size);
+    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);
+
+    return 0;
+ }
+
 /*****************************************************************************/
 void ppc_init (int ram_size, int vga_ram_size, int boot_device,
 	       DisplayState *ds, const char **fd_filename, int snapshot,
 	       const char *kernel_filename, const char *kernel_cmdline,
 	       const char *initrd_filename)
 {
-    /* For now, only PREP is supported */
-    return ppc_prep_init(ram_size, vga_ram_size, boot_device, ds, fd_filename,
+    if (prep_enabled) {
+        ppc_prep_init(ram_size, vga_ram_size, boot_device, ds, fd_filename,
                       snapshot, kernel_filename, kernel_cmdline,
                       initrd_filename);
+    } else {
+        ppc_chrp_init(ram_size, vga_ram_size, boot_device, ds, fd_filename,
+                      snapshot, kernel_filename, kernel_cmdline,
+                      initrd_filename);
+    }
 }

hw/ppc_chrp.c

+/*
+ * QEMU PPC CHRP/PMAC hardware System Emulator
+ * 
+ * Copyright (c) 2004 Fabrice Bellard
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+#include "vl.h"
+
+#define BIOS_FILENAME "ppc_rom.bin"
+#define NVRAM_SIZE        0x2000
+
+/* PowerPC PREP hardware initialisation */
+void ppc_chrp_init(int ram_size, int vga_ram_size, int boot_device,
+		   DisplayState *ds, const char **fd_filename, int snapshot,
+		   const char *kernel_filename, const char *kernel_cmdline,
+		   const char *initrd_filename)
+{
+    char buf[1024];
+    m48t59_t *nvram;
+    int PPC_io_memory;
+    int ret, linux_boot, i, fd;
+    unsigned long bios_offset;
+    
+    linux_boot = (kernel_filename != NULL);
+
+    /* allocate RAM */
+    cpu_register_physical_memory(0, ram_size, IO_MEM_RAM);
+
+    /* allocate and load BIOS */
+    bios_offset = ram_size + vga_ram_size;
+    snprintf(buf, sizeof(buf), "%s/%s", bios_dir, BIOS_FILENAME);
+    ret = load_image(buf, phys_ram_base + bios_offset);
+    if (ret != BIOS_SIZE) {
+        fprintf(stderr, "qemu: could not load PPC PREP bios '%s'\n", buf);
+        exit(1);
+    }
+    cpu_register_physical_memory((uint32_t)(-BIOS_SIZE), 
+                                 BIOS_SIZE, bios_offset | IO_MEM_ROM);
+    cpu_single_env->nip = 0xfffffffc;
+
+    /* Register CPU as a 74x/75x */
+    cpu_ppc_register(cpu_single_env, 0x00080000);
+    /* Set time-base frequency to 100 Mhz */
+    cpu_ppc_tb_init(cpu_single_env, 100UL * 1000UL * 1000UL);
+
+    isa_mem_base = 0xc0000000;
+    pci_pmac_init();
+
+    /* Register 64 KB of ISA IO space */
+    PPC_io_memory = cpu_register_io_memory(0, PPC_io_read, PPC_io_write);
+    cpu_register_physical_memory(0x80000000, 0x10000, PPC_io_memory);
+    //    cpu_register_physical_memory(0xfe000000, 0xfe010000, PPC_io_memory);
+
+    /* init basic PC hardware */
+    vga_initialize(ds, phys_ram_base + ram_size, ram_size, 
+                   vga_ram_size, 1);
+    //    openpic = openpic_init(0x00000000, 0xF0000000, 1);
+    //    pic_init(openpic);
+    pic_init();
+    //    pit = pit_init(0x40, 0);
+
+    /* XXX: use Mac Serial port */
+    fd = serial_open_device();
+    serial_init(0x3f8, 4, fd);
+
+    for(i = 0; i < nb_nics; i++) {
+        pci_ne2000_init(&nd_table[i]);
+    }
+
+    pci_ide_init(bs_table);
+
+    kbd_init();
+
+    nvram = m48t59_init(8, 0x0074, NVRAM_SIZE);
+
+    PPC_NVRAM_set_params(nvram, NVRAM_SIZE, "PREP", ram_size, boot_device,
+                         0, 0,
+                         0,
+                         0,
+                         0, 0,
+                         /* XXX: need an option to load a NVRAM image */
+                         0
+                         );
+
+    /* Special port to get debug messages from Open-Firmware */
+    register_ioport_write(0xFF00, 0x04, 1, &PREP_debug_write, NULL);
+    register_ioport_write(0xFF00, 0x04, 2, &PREP_debug_write, NULL);
+    
+    pci_ppc_bios_init();
+}

vl.h

@@ -594,15 +594,34 @@ void ppc_chrp_init(int ram_size, int vga_ram_size, int boot_device,
 		   const char *kernel_filename, const char *kernel_cmdline,
 		   const char *initrd_filename);
 ppc_tb_t *cpu_ppc_tb_init (CPUPPCState *env, uint32_t freq);
-struct sysctrl_t;
-int prep_NVRAM_init (struct sysctrl_t *sysctrl, uint32_t RAM_size,
-                     uint32_t BIOS_size, int boot_device,
-                     uint32_t kernel_image);
+void PREP_debug_write (void *opaque, uint32_t addr, uint32_t val);
 
 extern CPUWriteMemoryFunc *PPC_io_write[];
 extern CPUReadMemoryFunc *PPC_io_read[];
 extern int prep_enabled;
 
+/* NVRAM helpers */
+#include "hw/m48t59.h"
+
+void NVRAM_set_byte (m48t59_t *nvram, uint32_t addr, uint8_t value);
+uint8_t NVRAM_get_byte (m48t59_t *nvram, uint32_t addr);
+void NVRAM_set_word (m48t59_t *nvram, uint32_t addr, uint16_t value);
+uint16_t NVRAM_get_word (m48t59_t *nvram, uint32_t addr);
+void NVRAM_set_lword (m48t59_t *nvram, uint32_t addr, uint32_t value);
+uint32_t NVRAM_get_lword (m48t59_t *nvram, uint32_t addr);
+void NVRAM_set_string (m48t59_t *nvram, uint32_t addr,
+                       const unsigned char *str, uint32_t max);
+int NVRAM_get_string (m48t59_t *nvram, uint8_t *dst, uint16_t addr, int max);
+void NVRAM_set_crc (m48t59_t *nvram, uint32_t addr,
+                    uint32_t start, uint32_t count);
+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,
+                          uint32_t initrd_image, uint32_t initrd_size,
+                          uint32_t NVRAM_image);
+
 /* monitor.c */
 void monitor_init(void);
 void term_printf(const char *fmt, ...) __attribute__ ((__format__ (__printf__, 1, 2)));