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b2097003ec
xemu/hw/ppc405_boards.c
aliguori b2097003ec machine struct - specify max_cpus at the per machine level (Jes Sorensen) 
Introduce a max_cpus per-machine variable, allowing individual boards
to limit it's number of CPUs. Check requested number of CPUs in setup
code and exit if it exceeds the supported number for the machine.
This also renders the static MAX_CPUS check obsolete, so remove this
from vl.c.

Signed-off-by: Jes Sorensen <jes@sgi.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>



git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5443 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-07 20:39:39 +00:00

647 lines
20 KiB
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/*
* QEMU PowerPC 405 evaluation boards emulation
*
* Copyright (c) 2007 Jocelyn Mayer
*
* 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 "hw.h"
#include "ppc.h"
#include "ppc405.h"
#include "nvram.h"
#include "flash.h"
#include "sysemu.h"
#include "block.h"
#include "boards.h"
#include "qemu-log.h"
#define BIOS_FILENAME "ppc405_rom.bin"
#undef BIOS_SIZE
#define BIOS_SIZE (2048 * 1024)
#define KERNEL_LOAD_ADDR 0x00000000
#define INITRD_LOAD_ADDR 0x01800000
#define USE_FLASH_BIOS
#define DEBUG_BOARD_INIT
/*****************************************************************************/
/* PPC405EP reference board (IBM) */
/* Standalone board with:
* - PowerPC 405EP CPU
* - SDRAM (0x00000000)
* - Flash (0xFFF80000)
* - SRAM (0xFFF00000)
* - NVRAM (0xF0000000)
* - FPGA (0xF0300000)
*/
typedef struct ref405ep_fpga_t ref405ep_fpga_t;
struct ref405ep_fpga_t {
uint32_t base;
uint8_t reg0;
uint8_t reg1;
};
static uint32_t ref405ep_fpga_readb (void *opaque, target_phys_addr_t addr)
{
ref405ep_fpga_t *fpga;
uint32_t ret;
fpga = opaque;
addr -= fpga->base;
switch (addr) {
case 0x0:
ret = fpga->reg0;
break;
case 0x1:
ret = fpga->reg1;
break;
default:
ret = 0;
break;
}
return ret;
}
static void ref405ep_fpga_writeb (void *opaque,
target_phys_addr_t addr, uint32_t value)
{
ref405ep_fpga_t *fpga;
fpga = opaque;
addr -= fpga->base;
switch (addr) {
case 0x0:
/* Read only */
break;
case 0x1:
fpga->reg1 = value;
break;
default:
break;
}
}
static uint32_t ref405ep_fpga_readw (void *opaque, target_phys_addr_t addr)
{
uint32_t ret;
ret = ref405ep_fpga_readb(opaque, addr) << 8;
ret |= ref405ep_fpga_readb(opaque, addr + 1);
return ret;
}
static void ref405ep_fpga_writew (void *opaque,
target_phys_addr_t addr, uint32_t value)
{
ref405ep_fpga_writeb(opaque, addr, (value >> 8) & 0xFF);
ref405ep_fpga_writeb(opaque, addr + 1, value & 0xFF);
}
static uint32_t ref405ep_fpga_readl (void *opaque, target_phys_addr_t addr)
{
uint32_t ret;
ret = ref405ep_fpga_readb(opaque, addr) << 24;
ret |= ref405ep_fpga_readb(opaque, addr + 1) << 16;
ret |= ref405ep_fpga_readb(opaque, addr + 2) << 8;
ret |= ref405ep_fpga_readb(opaque, addr + 3);
return ret;
}
static void ref405ep_fpga_writel (void *opaque,
target_phys_addr_t addr, uint32_t value)
{
ref405ep_fpga_writel(opaque, addr, (value >> 24) & 0xFF);
ref405ep_fpga_writel(opaque, addr + 1, (value >> 16) & 0xFF);
ref405ep_fpga_writel(opaque, addr + 2, (value >> 8) & 0xFF);
ref405ep_fpga_writeb(opaque, addr + 3, value & 0xFF);
}
static CPUReadMemoryFunc *ref405ep_fpga_read[] = {
&ref405ep_fpga_readb,
&ref405ep_fpga_readw,
&ref405ep_fpga_readl,
};
static CPUWriteMemoryFunc *ref405ep_fpga_write[] = {
&ref405ep_fpga_writeb,
&ref405ep_fpga_writew,
&ref405ep_fpga_writel,
};
static void ref405ep_fpga_reset (void *opaque)
{
ref405ep_fpga_t *fpga;
fpga = opaque;
fpga->reg0 = 0x00;
fpga->reg1 = 0x0F;
}
static void ref405ep_fpga_init (uint32_t base)
{
ref405ep_fpga_t *fpga;
int fpga_memory;
fpga = qemu_mallocz(sizeof(ref405ep_fpga_t));
if (fpga != NULL) {
fpga->base = base;
fpga_memory = cpu_register_io_memory(0, ref405ep_fpga_read,
ref405ep_fpga_write, fpga);
cpu_register_physical_memory(base, 0x00000100, fpga_memory);
ref405ep_fpga_reset(fpga);
qemu_register_reset(&ref405ep_fpga_reset, fpga);
}
}
static void ref405ep_init (ram_addr_t ram_size, int vga_ram_size,
const char *boot_device, DisplayState *ds,
const char *kernel_filename,
const char *kernel_cmdline,
const char *initrd_filename,
const char *cpu_model)
{
char buf[1024];
ppc4xx_bd_info_t bd;
CPUPPCState *env;
qemu_irq *pic;
ram_addr_t sram_offset, bios_offset, bdloc;
target_phys_addr_t ram_bases[2], ram_sizes[2];
target_ulong sram_size, bios_size;
//int phy_addr = 0;
//static int phy_addr = 1;
target_ulong kernel_base, kernel_size, initrd_base, initrd_size;
int linux_boot;
int fl_idx, fl_sectors, len;
int ppc_boot_device = boot_device[0];
int index;
/* XXX: fix this */
ram_bases[0] = 0x00000000;
ram_sizes[0] = 0x08000000;
ram_bases[1] = 0x00000000;
ram_sizes[1] = 0x00000000;
ram_size = 128 * 1024 * 1024;
#ifdef DEBUG_BOARD_INIT
printf("%s: register cpu\n", __func__);
#endif
env = ppc405ep_init(ram_bases, ram_sizes, 33333333, &pic, &sram_offset,
kernel_filename == NULL ? 0 : 1);
/* allocate SRAM */
#ifdef DEBUG_BOARD_INIT
printf("%s: register SRAM at offset %08lx\n", __func__, sram_offset);
#endif
sram_size = 512 * 1024;
cpu_register_physical_memory(0xFFF00000, sram_size,
sram_offset | IO_MEM_RAM);
/* allocate and load BIOS */
#ifdef DEBUG_BOARD_INIT
printf("%s: register BIOS\n", __func__);
#endif
bios_offset = sram_offset + sram_size;
fl_idx = 0;
#ifdef USE_FLASH_BIOS
index = drive_get_index(IF_PFLASH, 0, fl_idx);
if (index != -1) {
bios_size = bdrv_getlength(drives_table[index].bdrv);
fl_sectors = (bios_size + 65535) >> 16;
#ifdef DEBUG_BOARD_INIT
printf("Register parallel flash %d size " ADDRX " at offset %08lx "
" addr " ADDRX " '%s' %d\n",
fl_idx, bios_size, bios_offset, -bios_size,
bdrv_get_device_name(drives_table[index].bdrv), fl_sectors);
#endif
pflash_cfi02_register((uint32_t)(-bios_size), bios_offset,
drives_table[index].bdrv, 65536, fl_sectors, 1,
2, 0x0001, 0x22DA, 0x0000, 0x0000, 0x555, 0x2AA);
fl_idx++;
} else
#endif
{
#ifdef DEBUG_BOARD_INIT
printf("Load BIOS from file\n");
#endif
if (bios_name == NULL)
bios_name = BIOS_FILENAME;
snprintf(buf, sizeof(buf), "%s/%s", bios_dir, bios_name);
bios_size = load_image(buf, phys_ram_base + bios_offset);
if (bios_size < 0 || bios_size > BIOS_SIZE) {
fprintf(stderr, "qemu: could not load PowerPC bios '%s'\n", buf);
exit(1);
}
bios_size = (bios_size + 0xfff) & ~0xfff;
cpu_register_physical_memory((uint32_t)(-bios_size),
bios_size, bios_offset | IO_MEM_ROM);
}
bios_offset += bios_size;
/* Register FPGA */
#ifdef DEBUG_BOARD_INIT
printf("%s: register FPGA\n", __func__);
#endif
ref405ep_fpga_init(0xF0300000);
/* Register NVRAM */
#ifdef DEBUG_BOARD_INIT
printf("%s: register NVRAM\n", __func__);
#endif
m48t59_init(NULL, 0xF0000000, 0, 8192, 8);
/* Load kernel */
linux_boot = (kernel_filename != NULL);
if (linux_boot) {
#ifdef DEBUG_BOARD_INIT
printf("%s: load kernel\n", __func__);
#endif
memset(&bd, 0, sizeof(bd));
bd.bi_memstart = 0x00000000;
bd.bi_memsize = ram_size;
bd.bi_flashstart = -bios_size;
bd.bi_flashsize = -bios_size;
bd.bi_flashoffset = 0;
bd.bi_sramstart = 0xFFF00000;
bd.bi_sramsize = sram_size;
bd.bi_bootflags = 0;
bd.bi_intfreq = 133333333;
bd.bi_busfreq = 33333333;
bd.bi_baudrate = 115200;
bd.bi_s_version[0] = 'Q';
bd.bi_s_version[1] = 'M';
bd.bi_s_version[2] = 'U';
bd.bi_s_version[3] = '\0';
bd.bi_r_version[0] = 'Q';
bd.bi_r_version[1] = 'E';
bd.bi_r_version[2] = 'M';
bd.bi_r_version[3] = 'U';
bd.bi_r_version[4] = '\0';
bd.bi_procfreq = 133333333;
bd.bi_plb_busfreq = 33333333;
bd.bi_pci_busfreq = 33333333;
bd.bi_opbfreq = 33333333;
bdloc = ppc405_set_bootinfo(env, &bd, 0x00000001);
env->gpr[3] = bdloc;
kernel_base = KERNEL_LOAD_ADDR;
/* now we can load the kernel */
kernel_size = load_image(kernel_filename, phys_ram_base + kernel_base);
if (kernel_size < 0) {
fprintf(stderr, "qemu: could not load kernel '%s'\n",
kernel_filename);
exit(1);
}
printf("Load kernel size " TARGET_FMT_ld " at " TARGET_FMT_lx
" %02x %02x %02x %02x\n", kernel_size, kernel_base,
*(char *)(phys_ram_base + kernel_base),
*(char *)(phys_ram_base + kernel_base + 1),
*(char *)(phys_ram_base + kernel_base + 2),
*(char *)(phys_ram_base + kernel_base + 3));
/* load initrd */
if (initrd_filename) {
initrd_base = INITRD_LOAD_ADDR;
initrd_size = load_image(initrd_filename,
phys_ram_base + initrd_base);
if (initrd_size < 0) {
fprintf(stderr, "qemu: could not load initial ram disk '%s'\n",
initrd_filename);
exit(1);
}
} else {
initrd_base = 0;
initrd_size = 0;
}
env->gpr[4] = initrd_base;
env->gpr[5] = initrd_size;
ppc_boot_device = 'm';
if (kernel_cmdline != NULL) {
len = strlen(kernel_cmdline);
bdloc -= ((len + 255) & ~255);
memcpy(phys_ram_base + bdloc, kernel_cmdline, len + 1);
env->gpr[6] = bdloc;
env->gpr[7] = bdloc + len;
} else {
env->gpr[6] = 0;
env->gpr[7] = 0;
}
env->nip = KERNEL_LOAD_ADDR;
} else {
kernel_base = 0;
kernel_size = 0;
initrd_base = 0;
initrd_size = 0;
bdloc = 0;
}
#ifdef DEBUG_BOARD_INIT
printf("%s: Done\n", __func__);
#endif
printf("bdloc %016lx %s\n",
(unsigned long)bdloc, (char *)(phys_ram_base + bdloc));
}
QEMUMachine ref405ep_machine = {
.name = "ref405ep",
.desc = "ref405ep",
.init = ref405ep_init,
.ram_require = (128 * 1024 * 1024 + 4096 + 512 * 1024 + BIOS_SIZE) | RAMSIZE_FIXED,
.max_cpus = 1,
};
/*****************************************************************************/
/* AMCC Taihu evaluation board */
/* - PowerPC 405EP processor
* - SDRAM 128 MB at 0x00000000
* - Boot flash 2 MB at 0xFFE00000
* - Application flash 32 MB at 0xFC000000
* - 2 serial ports
* - 2 ethernet PHY
* - 1 USB 1.1 device 0x50000000
* - 1 LCD display 0x50100000
* - 1 CPLD 0x50100000
* - 1 I2C EEPROM
* - 1 I2C thermal sensor
* - a set of LEDs
* - bit-bang SPI port using GPIOs
* - 1 EBC interface connector 0 0x50200000
* - 1 cardbus controller + expansion slot.
* - 1 PCI expansion slot.
*/
typedef struct taihu_cpld_t taihu_cpld_t;
struct taihu_cpld_t {
uint32_t base;
uint8_t reg0;
uint8_t reg1;
};
static uint32_t taihu_cpld_readb (void *opaque, target_phys_addr_t addr)
{
taihu_cpld_t *cpld;
uint32_t ret;
cpld = opaque;
addr -= cpld->base;
switch (addr) {
case 0x0:
ret = cpld->reg0;
break;
case 0x1:
ret = cpld->reg1;
break;
default:
ret = 0;
break;
}
return ret;
}
static void taihu_cpld_writeb (void *opaque,
target_phys_addr_t addr, uint32_t value)
{
taihu_cpld_t *cpld;
cpld = opaque;
addr -= cpld->base;
switch (addr) {
case 0x0:
/* Read only */
break;
case 0x1:
cpld->reg1 = value;
break;
default:
break;
}
}
static uint32_t taihu_cpld_readw (void *opaque, target_phys_addr_t addr)
{
uint32_t ret;
ret = taihu_cpld_readb(opaque, addr) << 8;
ret |= taihu_cpld_readb(opaque, addr + 1);
return ret;
}
static void taihu_cpld_writew (void *opaque,
target_phys_addr_t addr, uint32_t value)
{
taihu_cpld_writeb(opaque, addr, (value >> 8) & 0xFF);
taihu_cpld_writeb(opaque, addr + 1, value & 0xFF);
}
static uint32_t taihu_cpld_readl (void *opaque, target_phys_addr_t addr)
{
uint32_t ret;
ret = taihu_cpld_readb(opaque, addr) << 24;
ret |= taihu_cpld_readb(opaque, addr + 1) << 16;
ret |= taihu_cpld_readb(opaque, addr + 2) << 8;
ret |= taihu_cpld_readb(opaque, addr + 3);
return ret;
}
static void taihu_cpld_writel (void *opaque,
target_phys_addr_t addr, uint32_t value)
{
taihu_cpld_writel(opaque, addr, (value >> 24) & 0xFF);
taihu_cpld_writel(opaque, addr + 1, (value >> 16) & 0xFF);
taihu_cpld_writel(opaque, addr + 2, (value >> 8) & 0xFF);
taihu_cpld_writeb(opaque, addr + 3, value & 0xFF);
}
static CPUReadMemoryFunc *taihu_cpld_read[] = {
&taihu_cpld_readb,
&taihu_cpld_readw,
&taihu_cpld_readl,
};
static CPUWriteMemoryFunc *taihu_cpld_write[] = {
&taihu_cpld_writeb,
&taihu_cpld_writew,
&taihu_cpld_writel,
};
static void taihu_cpld_reset (void *opaque)
{
taihu_cpld_t *cpld;
cpld = opaque;
cpld->reg0 = 0x01;
cpld->reg1 = 0x80;
}
static void taihu_cpld_init (uint32_t base)
{
taihu_cpld_t *cpld;
int cpld_memory;
cpld = qemu_mallocz(sizeof(taihu_cpld_t));
if (cpld != NULL) {
cpld->base = base;
cpld_memory = cpu_register_io_memory(0, taihu_cpld_read,
taihu_cpld_write, cpld);
cpu_register_physical_memory(base, 0x00000100, cpld_memory);
taihu_cpld_reset(cpld);
qemu_register_reset(&taihu_cpld_reset, cpld);
}
}
static void taihu_405ep_init(ram_addr_t ram_size, int vga_ram_size,
const char *boot_device, DisplayState *ds,
const char *kernel_filename,
const char *kernel_cmdline,
const char *initrd_filename,
const char *cpu_model)
{
char buf[1024];
CPUPPCState *env;
qemu_irq *pic;
ram_addr_t bios_offset;
target_phys_addr_t ram_bases[2], ram_sizes[2];
target_ulong bios_size;
target_ulong kernel_base, kernel_size, initrd_base, initrd_size;
int linux_boot;
int fl_idx, fl_sectors;
int ppc_boot_device = boot_device[0];
int index;
/* RAM is soldered to the board so the size cannot be changed */
ram_bases[0] = 0x00000000;
ram_sizes[0] = 0x04000000;
ram_bases[1] = 0x04000000;
ram_sizes[1] = 0x04000000;
#ifdef DEBUG_BOARD_INIT
printf("%s: register cpu\n", __func__);
#endif
env = ppc405ep_init(ram_bases, ram_sizes, 33333333, &pic, &bios_offset,
kernel_filename == NULL ? 0 : 1);
/* allocate and load BIOS */
#ifdef DEBUG_BOARD_INIT
printf("%s: register BIOS\n", __func__);
#endif
fl_idx = 0;
#if defined(USE_FLASH_BIOS)
index = drive_get_index(IF_PFLASH, 0, fl_idx);
if (index != -1) {
bios_size = bdrv_getlength(drives_table[index].bdrv);
/* XXX: should check that size is 2MB */
// bios_size = 2 * 1024 * 1024;
fl_sectors = (bios_size + 65535) >> 16;
#ifdef DEBUG_BOARD_INIT
printf("Register parallel flash %d size " ADDRX " at offset %08lx "
" addr " ADDRX " '%s' %d\n",
fl_idx, bios_size, bios_offset, -bios_size,
bdrv_get_device_name(drives_table[index].bdrv), fl_sectors);
#endif
pflash_cfi02_register((uint32_t)(-bios_size), bios_offset,
drives_table[index].bdrv, 65536, fl_sectors, 1,
4, 0x0001, 0x22DA, 0x0000, 0x0000, 0x555, 0x2AA);
fl_idx++;
} else
#endif
{
#ifdef DEBUG_BOARD_INIT
printf("Load BIOS from file\n");
#endif
if (bios_name == NULL)
bios_name = BIOS_FILENAME;
snprintf(buf, sizeof(buf), "%s/%s", bios_dir, bios_name);
bios_size = load_image(buf, phys_ram_base + bios_offset);
if (bios_size < 0 || bios_size > BIOS_SIZE) {
fprintf(stderr, "qemu: could not load PowerPC bios '%s'\n", buf);
exit(1);
}
bios_size = (bios_size + 0xfff) & ~0xfff;
cpu_register_physical_memory((uint32_t)(-bios_size),
bios_size, bios_offset | IO_MEM_ROM);
}
bios_offset += bios_size;
/* Register Linux flash */
index = drive_get_index(IF_PFLASH, 0, fl_idx);
if (index != -1) {
bios_size = bdrv_getlength(drives_table[index].bdrv);
/* XXX: should check that size is 32MB */
bios_size = 32 * 1024 * 1024;
fl_sectors = (bios_size + 65535) >> 16;
#ifdef DEBUG_BOARD_INIT
printf("Register parallel flash %d size " ADDRX " at offset %08lx "
" addr " ADDRX " '%s'\n",
fl_idx, bios_size, bios_offset, (target_ulong)0xfc000000,
bdrv_get_device_name(drives_table[index].bdrv));
#endif
pflash_cfi02_register(0xfc000000, bios_offset,
drives_table[index].bdrv, 65536, fl_sectors, 1,
4, 0x0001, 0x22DA, 0x0000, 0x0000, 0x555, 0x2AA);
fl_idx++;
}
/* Register CLPD & LCD display */
#ifdef DEBUG_BOARD_INIT
printf("%s: register CPLD\n", __func__);
#endif
taihu_cpld_init(0x50100000);
/* Load kernel */
linux_boot = (kernel_filename != NULL);
if (linux_boot) {
#ifdef DEBUG_BOARD_INIT
printf("%s: load kernel\n", __func__);
#endif
kernel_base = KERNEL_LOAD_ADDR;
/* now we can load the kernel */
kernel_size = load_image(kernel_filename, phys_ram_base + kernel_base);
if (kernel_size < 0) {
fprintf(stderr, "qemu: could not load kernel '%s'\n",
kernel_filename);
exit(1);
}
/* load initrd */
if (initrd_filename) {
initrd_base = INITRD_LOAD_ADDR;
initrd_size = load_image(initrd_filename,
phys_ram_base + initrd_base);
if (initrd_size < 0) {
fprintf(stderr,
"qemu: could not load initial ram disk '%s'\n",
initrd_filename);
exit(1);
}
} else {
initrd_base = 0;
initrd_size = 0;
}
ppc_boot_device = 'm';
} else {
kernel_base = 0;
kernel_size = 0;
initrd_base = 0;
initrd_size = 0;
}
#ifdef DEBUG_BOARD_INIT
printf("%s: Done\n", __func__);
#endif
}
QEMUMachine taihu_machine = {
"taihu",
"taihu",
taihu_405ep_init,
(128 * 1024 * 1024 + 4096 + BIOS_SIZE + 32 * 1024 * 1024) | RAMSIZE_FIXED,
};
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