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-rw-r--r--hw/arm/highbank.c342
1 files changed, 342 insertions, 0 deletions
diff --git a/hw/arm/highbank.c b/hw/arm/highbank.c
new file mode 100644
index 0000000000..a622224dcc
--- /dev/null
+++ b/hw/arm/highbank.c
@@ -0,0 +1,342 @@
+/*
+ * Calxeda Highbank SoC emulation
+ *
+ * Copyright (c) 2010-2012 Calxeda
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2 or later, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "hw/sysbus.h"
+#include "hw/arm-misc.h"
+#include "hw/devices.h"
+#include "hw/loader.h"
+#include "net/net.h"
+#include "sysemu/sysemu.h"
+#include "hw/boards.h"
+#include "hw/sysbus.h"
+#include "sysemu/blockdev.h"
+#include "exec/address-spaces.h"
+
+#define SMP_BOOT_ADDR 0x100
+#define SMP_BOOT_REG 0x40
+#define GIC_BASE_ADDR 0xfff10000
+
+#define NIRQ_GIC 160
+
+/* Board init. */
+
+static void hb_write_secondary(ARMCPU *cpu, const struct arm_boot_info *info)
+{
+ int n;
+ uint32_t smpboot[] = {
+ 0xee100fb0, /* mrc p15, 0, r0, c0, c0, 5 - read current core id */
+ 0xe210000f, /* ands r0, r0, #0x0f */
+ 0xe3a03040, /* mov r3, #0x40 - jump address is 0x40 + 0x10 * core id */
+ 0xe0830200, /* add r0, r3, r0, lsl #4 */
+ 0xe59f2024, /* ldr r2, privbase */
+ 0xe3a01001, /* mov r1, #1 */
+ 0xe5821100, /* str r1, [r2, #256] - set GICC_CTLR.Enable */
+ 0xe3a010ff, /* mov r1, #0xff */
+ 0xe5821104, /* str r1, [r2, #260] - set GICC_PMR.Priority to 0xff */
+ 0xf57ff04f, /* dsb */
+ 0xe320f003, /* wfi */
+ 0xe5901000, /* ldr r1, [r0] */
+ 0xe1110001, /* tst r1, r1 */
+ 0x0afffffb, /* beq <wfi> */
+ 0xe12fff11, /* bx r1 */
+ GIC_BASE_ADDR /* privbase: gic address. */
+ };
+ for (n = 0; n < ARRAY_SIZE(smpboot); n++) {
+ smpboot[n] = tswap32(smpboot[n]);
+ }
+ rom_add_blob_fixed("smpboot", smpboot, sizeof(smpboot), SMP_BOOT_ADDR);
+}
+
+static void hb_reset_secondary(ARMCPU *cpu, const struct arm_boot_info *info)
+{
+ CPUARMState *env = &cpu->env;
+
+ switch (info->nb_cpus) {
+ case 4:
+ stl_phys_notdirty(SMP_BOOT_REG + 0x30, 0);
+ case 3:
+ stl_phys_notdirty(SMP_BOOT_REG + 0x20, 0);
+ case 2:
+ stl_phys_notdirty(SMP_BOOT_REG + 0x10, 0);
+ env->regs[15] = SMP_BOOT_ADDR;
+ break;
+ default:
+ break;
+ }
+}
+
+#define NUM_REGS 0x200
+static void hb_regs_write(void *opaque, hwaddr offset,
+ uint64_t value, unsigned size)
+{
+ uint32_t *regs = opaque;
+
+ if (offset == 0xf00) {
+ if (value == 1 || value == 2) {
+ qemu_system_reset_request();
+ } else if (value == 3) {
+ qemu_system_shutdown_request();
+ }
+ }
+
+ regs[offset/4] = value;
+}
+
+static uint64_t hb_regs_read(void *opaque, hwaddr offset,
+ unsigned size)
+{
+ uint32_t *regs = opaque;
+ uint32_t value = regs[offset/4];
+
+ if ((offset == 0x100) || (offset == 0x108) || (offset == 0x10C)) {
+ value |= 0x30000000;
+ }
+
+ return value;
+}
+
+static const MemoryRegionOps hb_mem_ops = {
+ .read = hb_regs_read,
+ .write = hb_regs_write,
+ .endianness = DEVICE_NATIVE_ENDIAN,
+};
+
+typedef struct {
+ SysBusDevice busdev;
+ MemoryRegion *iomem;
+ uint32_t regs[NUM_REGS];
+} HighbankRegsState;
+
+static VMStateDescription vmstate_highbank_regs = {
+ .name = "highbank-regs",
+ .version_id = 0,
+ .minimum_version_id = 0,
+ .minimum_version_id_old = 0,
+ .fields = (VMStateField[]) {
+ VMSTATE_UINT32_ARRAY(regs, HighbankRegsState, NUM_REGS),
+ VMSTATE_END_OF_LIST(),
+ },
+};
+
+static void highbank_regs_reset(DeviceState *dev)
+{
+ SysBusDevice *sys_dev = SYS_BUS_DEVICE(dev);
+ HighbankRegsState *s = FROM_SYSBUS(HighbankRegsState, sys_dev);
+
+ s->regs[0x40] = 0x05F20121;
+ s->regs[0x41] = 0x2;
+ s->regs[0x42] = 0x05F30121;
+ s->regs[0x43] = 0x05F40121;
+}
+
+static int highbank_regs_init(SysBusDevice *dev)
+{
+ HighbankRegsState *s = FROM_SYSBUS(HighbankRegsState, dev);
+
+ s->iomem = g_new(MemoryRegion, 1);
+ memory_region_init_io(s->iomem, &hb_mem_ops, s->regs, "highbank_regs",
+ 0x1000);
+ sysbus_init_mmio(dev, s->iomem);
+
+ return 0;
+}
+
+static void highbank_regs_class_init(ObjectClass *klass, void *data)
+{
+ SysBusDeviceClass *sbc = SYS_BUS_DEVICE_CLASS(klass);
+ DeviceClass *dc = DEVICE_CLASS(klass);
+
+ sbc->init = highbank_regs_init;
+ dc->desc = "Calxeda Highbank registers";
+ dc->vmsd = &vmstate_highbank_regs;
+ dc->reset = highbank_regs_reset;
+}
+
+static const TypeInfo highbank_regs_info = {
+ .name = "highbank-regs",
+ .parent = TYPE_SYS_BUS_DEVICE,
+ .instance_size = sizeof(HighbankRegsState),
+ .class_init = highbank_regs_class_init,
+};
+
+static void highbank_regs_register_types(void)
+{
+ type_register_static(&highbank_regs_info);
+}
+
+type_init(highbank_regs_register_types)
+
+static struct arm_boot_info highbank_binfo;
+
+/* ram_size must be set to match the upper bound of memory in the
+ * device tree (linux/arch/arm/boot/dts/highbank.dts), which is
+ * normally 0xff900000 or -m 4089. When running this board on a
+ * 32-bit host, set the reg value of memory to 0xf7ff00000 in the
+ * device tree and pass -m 2047 to QEMU.
+ */
+static void highbank_init(QEMUMachineInitArgs *args)
+{
+ ram_addr_t ram_size = args->ram_size;
+ const char *cpu_model = args->cpu_model;
+ const char *kernel_filename = args->kernel_filename;
+ const char *kernel_cmdline = args->kernel_cmdline;
+ const char *initrd_filename = args->initrd_filename;
+ DeviceState *dev;
+ SysBusDevice *busdev;
+ qemu_irq *irqp;
+ qemu_irq pic[128];
+ int n;
+ qemu_irq cpu_irq[4];
+ MemoryRegion *sysram;
+ MemoryRegion *dram;
+ MemoryRegion *sysmem;
+ char *sysboot_filename;
+
+ if (!cpu_model) {
+ cpu_model = "cortex-a9";
+ }
+
+ for (n = 0; n < smp_cpus; n++) {
+ ARMCPU *cpu;
+ cpu = cpu_arm_init(cpu_model);
+ if (cpu == NULL) {
+ fprintf(stderr, "Unable to find CPU definition\n");
+ exit(1);
+ }
+
+ /* This will become a QOM property eventually */
+ cpu->reset_cbar = GIC_BASE_ADDR;
+ irqp = arm_pic_init_cpu(cpu);
+ cpu_irq[n] = irqp[ARM_PIC_CPU_IRQ];
+ }
+
+ sysmem = get_system_memory();
+ dram = g_new(MemoryRegion, 1);
+ memory_region_init_ram(dram, "highbank.dram", ram_size);
+ /* SDRAM at address zero. */
+ memory_region_add_subregion(sysmem, 0, dram);
+
+ sysram = g_new(MemoryRegion, 1);
+ memory_region_init_ram(sysram, "highbank.sysram", 0x8000);
+ memory_region_add_subregion(sysmem, 0xfff88000, sysram);
+ if (bios_name != NULL) {
+ sysboot_filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);
+ if (sysboot_filename != NULL) {
+ uint32_t filesize = get_image_size(sysboot_filename);
+ if (load_image_targphys("sysram.bin", 0xfff88000, filesize) < 0) {
+ hw_error("Unable to load %s\n", bios_name);
+ }
+ } else {
+ hw_error("Unable to find %s\n", bios_name);
+ }
+ }
+
+ dev = qdev_create(NULL, "a9mpcore_priv");
+ qdev_prop_set_uint32(dev, "num-cpu", smp_cpus);
+ qdev_prop_set_uint32(dev, "num-irq", NIRQ_GIC);
+ qdev_init_nofail(dev);
+ busdev = SYS_BUS_DEVICE(dev);
+ sysbus_mmio_map(busdev, 0, GIC_BASE_ADDR);
+ for (n = 0; n < smp_cpus; n++) {
+ sysbus_connect_irq(busdev, n, cpu_irq[n]);
+ }
+
+ for (n = 0; n < 128; n++) {
+ pic[n] = qdev_get_gpio_in(dev, n);
+ }
+
+ dev = qdev_create(NULL, "l2x0");
+ qdev_init_nofail(dev);
+ busdev = SYS_BUS_DEVICE(dev);
+ sysbus_mmio_map(busdev, 0, 0xfff12000);
+
+ dev = qdev_create(NULL, "sp804");
+ qdev_prop_set_uint32(dev, "freq0", 150000000);
+ qdev_prop_set_uint32(dev, "freq1", 150000000);
+ qdev_init_nofail(dev);
+ busdev = SYS_BUS_DEVICE(dev);
+ sysbus_mmio_map(busdev, 0, 0xfff34000);
+ sysbus_connect_irq(busdev, 0, pic[18]);
+ sysbus_create_simple("pl011", 0xfff36000, pic[20]);
+
+ dev = qdev_create(NULL, "highbank-regs");
+ qdev_init_nofail(dev);
+ busdev = SYS_BUS_DEVICE(dev);
+ sysbus_mmio_map(busdev, 0, 0xfff3c000);
+
+ sysbus_create_simple("pl061", 0xfff30000, pic[14]);
+ sysbus_create_simple("pl061", 0xfff31000, pic[15]);
+ sysbus_create_simple("pl061", 0xfff32000, pic[16]);
+ sysbus_create_simple("pl061", 0xfff33000, pic[17]);
+ sysbus_create_simple("pl031", 0xfff35000, pic[19]);
+ sysbus_create_simple("pl022", 0xfff39000, pic[23]);
+
+ sysbus_create_simple("sysbus-ahci", 0xffe08000, pic[83]);
+
+ if (nd_table[0].used) {
+ qemu_check_nic_model(&nd_table[0], "xgmac");
+ dev = qdev_create(NULL, "xgmac");
+ qdev_set_nic_properties(dev, &nd_table[0]);
+ qdev_init_nofail(dev);
+ sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, 0xfff50000);
+ sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, pic[77]);
+ sysbus_connect_irq(SYS_BUS_DEVICE(dev), 1, pic[78]);
+ sysbus_connect_irq(SYS_BUS_DEVICE(dev), 2, pic[79]);
+
+ qemu_check_nic_model(&nd_table[1], "xgmac");
+ dev = qdev_create(NULL, "xgmac");
+ qdev_set_nic_properties(dev, &nd_table[1]);
+ qdev_init_nofail(dev);
+ sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, 0xfff51000);
+ sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, pic[80]);
+ sysbus_connect_irq(SYS_BUS_DEVICE(dev), 1, pic[81]);
+ sysbus_connect_irq(SYS_BUS_DEVICE(dev), 2, pic[82]);
+ }
+
+ highbank_binfo.ram_size = ram_size;
+ highbank_binfo.kernel_filename = kernel_filename;
+ highbank_binfo.kernel_cmdline = kernel_cmdline;
+ highbank_binfo.initrd_filename = initrd_filename;
+ /* highbank requires a dtb in order to boot, and the dtb will override
+ * the board ID. The following value is ignored, so set it to -1 to be
+ * clear that the value is meaningless.
+ */
+ highbank_binfo.board_id = -1;
+ highbank_binfo.nb_cpus = smp_cpus;
+ highbank_binfo.loader_start = 0;
+ highbank_binfo.write_secondary_boot = hb_write_secondary;
+ highbank_binfo.secondary_cpu_reset_hook = hb_reset_secondary;
+ arm_load_kernel(arm_env_get_cpu(first_cpu), &highbank_binfo);
+}
+
+static QEMUMachine highbank_machine = {
+ .name = "highbank",
+ .desc = "Calxeda Highbank (ECX-1000)",
+ .init = highbank_init,
+ .block_default_type = IF_SCSI,
+ .max_cpus = 4,
+ DEFAULT_MACHINE_OPTIONS,
+};
+
+static void highbank_machine_init(void)
+{
+ qemu_register_machine(&highbank_machine);
+}
+
+machine_init(highbank_machine_init);
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