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qemu-e2k/hw/realview.c
Oskar Andero d1157ca418 realview: break out versatile i2c controller code 
The versatile i2c controller implementation was separated to
its own file called versatile_i2c.c. This is done as a preparation
for adding i2c support to the versatilepb board.

Signed-off-by: Oskar Andero <oskar.andero@gmail.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2012-04-20 15:38:52 +00:00

417 lines
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/*
* ARM RealView Baseboard System emulation.
*
* Copyright (c) 2006-2007 CodeSourcery.
* Written by Paul Brook
*
* This code is licensed under the GPL.
*/
#include "sysbus.h"
#include "arm-misc.h"
#include "primecell.h"
#include "devices.h"
#include "pci.h"
#include "net.h"
#include "sysemu.h"
#include "boards.h"
#include "i2c.h"
#include "blockdev.h"
#include "exec-memory.h"
#define SMP_BOOT_ADDR 0xe0000000
#define SMP_BOOTREG_ADDR 0x10000030
/* Board init. */
static struct arm_boot_info realview_binfo = {
.smp_loader_start = SMP_BOOT_ADDR,
.smp_bootreg_addr = SMP_BOOTREG_ADDR,
};
/* The following two lists must be consistent. */
enum realview_board_type {
BOARD_EB,
BOARD_EB_MPCORE,
BOARD_PB_A8,
BOARD_PBX_A9,
};
static const int realview_board_id[] = {
0x33b,
0x33b,
0x769,
0x76d
};
static void realview_init(ram_addr_t ram_size,
const char *boot_device,
const char *kernel_filename, const char *kernel_cmdline,
const char *initrd_filename, const char *cpu_model,
enum realview_board_type board_type)
{
CPUARMState *env = NULL;
MemoryRegion *sysmem = get_system_memory();
MemoryRegion *ram_lo = g_new(MemoryRegion, 1);
MemoryRegion *ram_hi = g_new(MemoryRegion, 1);
MemoryRegion *ram_alias = g_new(MemoryRegion, 1);
MemoryRegion *ram_hack = g_new(MemoryRegion, 1);
DeviceState *dev, *sysctl, *gpio2, *pl041;
SysBusDevice *busdev;
qemu_irq *irqp;
qemu_irq pic[64];
qemu_irq mmc_irq[2];
PCIBus *pci_bus;
NICInfo *nd;
i2c_bus *i2c;
int n;
int done_nic = 0;
qemu_irq cpu_irq[4];
int is_mpcore = 0;
int is_pb = 0;
uint32_t proc_id = 0;
uint32_t sys_id;
ram_addr_t low_ram_size;
switch (board_type) {
case BOARD_EB:
break;
case BOARD_EB_MPCORE:
is_mpcore = 1;
break;
case BOARD_PB_A8:
is_pb = 1;
break;
case BOARD_PBX_A9:
is_mpcore = 1;
is_pb = 1;
break;
}
for (n = 0; n < smp_cpus; n++) {
env = cpu_init(cpu_model);
if (!env) {
fprintf(stderr, "Unable to find CPU definition\n");
exit(1);
}
irqp = arm_pic_init_cpu(env);
cpu_irq[n] = irqp[ARM_PIC_CPU_IRQ];
}
if (arm_feature(env, ARM_FEATURE_V7)) {
if (is_mpcore) {
proc_id = 0x0c000000;
} else {
proc_id = 0x0e000000;
}
} else if (arm_feature(env, ARM_FEATURE_V6K)) {
proc_id = 0x06000000;
} else if (arm_feature(env, ARM_FEATURE_V6)) {
proc_id = 0x04000000;
} else {
proc_id = 0x02000000;
}
if (is_pb && ram_size > 0x20000000) {
/* Core tile RAM. */
low_ram_size = ram_size - 0x20000000;
ram_size = 0x20000000;
memory_region_init_ram(ram_lo, "realview.lowmem", low_ram_size);
vmstate_register_ram_global(ram_lo);
memory_region_add_subregion(sysmem, 0x20000000, ram_lo);
}
memory_region_init_ram(ram_hi, "realview.highmem", ram_size);
vmstate_register_ram_global(ram_hi);
low_ram_size = ram_size;
if (low_ram_size > 0x10000000)
low_ram_size = 0x10000000;
/* SDRAM at address zero. */
memory_region_init_alias(ram_alias, "realview.alias",
ram_hi, 0, low_ram_size);
memory_region_add_subregion(sysmem, 0, ram_alias);
if (is_pb) {
/* And again at a high address. */
memory_region_add_subregion(sysmem, 0x70000000, ram_hi);
} else {
ram_size = low_ram_size;
}
sys_id = is_pb ? 0x01780500 : 0xc1400400;
sysctl = qdev_create(NULL, "realview_sysctl");
qdev_prop_set_uint32(sysctl, "sys_id", sys_id);
qdev_prop_set_uint32(sysctl, "proc_id", proc_id);
qdev_init_nofail(sysctl);
sysbus_mmio_map(sysbus_from_qdev(sysctl), 0, 0x10000000);
if (is_mpcore) {
target_phys_addr_t periphbase;
dev = qdev_create(NULL, is_pb ? "a9mpcore_priv": "realview_mpcore");
qdev_prop_set_uint32(dev, "num-cpu", smp_cpus);
qdev_init_nofail(dev);
busdev = sysbus_from_qdev(dev);
if (is_pb) {
periphbase = 0x1f000000;
} else {
periphbase = 0x10100000;
}
sysbus_mmio_map(busdev, 0, periphbase);
for (n = 0; n < smp_cpus; n++) {
sysbus_connect_irq(busdev, n, cpu_irq[n]);
}
sysbus_create_varargs("l2x0", periphbase + 0x2000, NULL);
/* Both A9 and 11MPCore put the GIC CPU i/f at base + 0x100 */
realview_binfo.gic_cpu_if_addr = periphbase + 0x100;
} else {
uint32_t gic_addr = is_pb ? 0x1e000000 : 0x10040000;
/* For now just create the nIRQ GIC, and ignore the others. */
dev = sysbus_create_simple("realview_gic", gic_addr, cpu_irq[0]);
}
for (n = 0; n < 64; n++) {
pic[n] = qdev_get_gpio_in(dev, n);
}
pl041 = qdev_create(NULL, "pl041");
qdev_prop_set_uint32(pl041, "nc_fifo_depth", 512);
qdev_init_nofail(pl041);
sysbus_mmio_map(sysbus_from_qdev(pl041), 0, 0x10004000);
sysbus_connect_irq(sysbus_from_qdev(pl041), 0, pic[19]);
sysbus_create_simple("pl050_keyboard", 0x10006000, pic[20]);
sysbus_create_simple("pl050_mouse", 0x10007000, pic[21]);
sysbus_create_simple("pl011", 0x10009000, pic[12]);
sysbus_create_simple("pl011", 0x1000a000, pic[13]);
sysbus_create_simple("pl011", 0x1000b000, pic[14]);
sysbus_create_simple("pl011", 0x1000c000, pic[15]);
/* DMA controller is optional, apparently. */
sysbus_create_simple("pl081", 0x10030000, pic[24]);
sysbus_create_simple("sp804", 0x10011000, pic[4]);
sysbus_create_simple("sp804", 0x10012000, pic[5]);
sysbus_create_simple("pl061", 0x10013000, pic[6]);
sysbus_create_simple("pl061", 0x10014000, pic[7]);
gpio2 = sysbus_create_simple("pl061", 0x10015000, pic[8]);
sysbus_create_simple("pl111", 0x10020000, pic[23]);
dev = sysbus_create_varargs("pl181", 0x10005000, pic[17], pic[18], NULL);
/* Wire up MMC card detect and read-only signals. These have
* to go to both the PL061 GPIO and the sysctl register.
* Note that the PL181 orders these lines (readonly,inserted)
* and the PL061 has them the other way about. Also the card
* detect line is inverted.
*/
mmc_irq[0] = qemu_irq_split(
qdev_get_gpio_in(sysctl, ARM_SYSCTL_GPIO_MMC_WPROT),
qdev_get_gpio_in(gpio2, 1));
mmc_irq[1] = qemu_irq_split(
qdev_get_gpio_in(sysctl, ARM_SYSCTL_GPIO_MMC_CARDIN),
qemu_irq_invert(qdev_get_gpio_in(gpio2, 0)));
qdev_connect_gpio_out(dev, 0, mmc_irq[0]);
qdev_connect_gpio_out(dev, 1, mmc_irq[1]);
sysbus_create_simple("pl031", 0x10017000, pic[10]);
if (!is_pb) {
dev = qdev_create(NULL, "realview_pci");
busdev = sysbus_from_qdev(dev);
qdev_init_nofail(dev);
sysbus_mmio_map(busdev, 0, 0x61000000); /* PCI self-config */
sysbus_mmio_map(busdev, 1, 0x62000000); /* PCI config */
sysbus_mmio_map(busdev, 2, 0x63000000); /* PCI I/O */
sysbus_connect_irq(busdev, 0, pic[48]);
sysbus_connect_irq(busdev, 1, pic[49]);
sysbus_connect_irq(busdev, 2, pic[50]);
sysbus_connect_irq(busdev, 3, pic[51]);
pci_bus = (PCIBus *)qdev_get_child_bus(dev, "pci");
if (usb_enabled) {
pci_create_simple(pci_bus, -1, "pci-ohci");
}
n = drive_get_max_bus(IF_SCSI);
while (n >= 0) {
pci_create_simple(pci_bus, -1, "lsi53c895a");
n--;
}
}
for(n = 0; n < nb_nics; n++) {
nd = &nd_table[n];
if (!done_nic && (!nd->model ||
strcmp(nd->model, is_pb ? "lan9118" : "smc91c111") == 0)) {
if (is_pb) {
lan9118_init(nd, 0x4e000000, pic[28]);
} else {
smc91c111_init(nd, 0x4e000000, pic[28]);
}
done_nic = 1;
} else {
pci_nic_init_nofail(nd, "rtl8139", NULL);
}
}
dev = sysbus_create_simple("versatile_i2c", 0x10002000, NULL);
i2c = (i2c_bus *)qdev_get_child_bus(dev, "i2c");
i2c_create_slave(i2c, "ds1338", 0x68);
/* Memory map for RealView Emulation Baseboard: */
/* 0x10000000 System registers. */
/* 0x10001000 System controller. */
/* 0x10002000 Two-Wire Serial Bus. */
/* 0x10003000 Reserved. */
/* 0x10004000 AACI. */
/* 0x10005000 MCI. */
/* 0x10006000 KMI0. */
/* 0x10007000 KMI1. */
/* 0x10008000 Character LCD. (EB) */
/* 0x10009000 UART0. */
/* 0x1000a000 UART1. */
/* 0x1000b000 UART2. */
/* 0x1000c000 UART3. */
/* 0x1000d000 SSPI. */
/* 0x1000e000 SCI. */
/* 0x1000f000 Reserved. */
/* 0x10010000 Watchdog. */
/* 0x10011000 Timer 0+1. */
/* 0x10012000 Timer 2+3. */
/* 0x10013000 GPIO 0. */
/* 0x10014000 GPIO 1. */
/* 0x10015000 GPIO 2. */
/* 0x10002000 Two-Wire Serial Bus - DVI. (PB) */
/* 0x10017000 RTC. */
/* 0x10018000 DMC. */
/* 0x10019000 PCI controller config. */
/* 0x10020000 CLCD. */
/* 0x10030000 DMA Controller. */
/* 0x10040000 GIC1. (EB) */
/* 0x10050000 GIC2. (EB) */
/* 0x10060000 GIC3. (EB) */
/* 0x10070000 GIC4. (EB) */
/* 0x10080000 SMC. */
/* 0x1e000000 GIC1. (PB) */
/* 0x1e001000 GIC2. (PB) */
/* 0x1e002000 GIC3. (PB) */
/* 0x1e003000 GIC4. (PB) */
/* 0x40000000 NOR flash. */
/* 0x44000000 DoC flash. */
/* 0x48000000 SRAM. */
/* 0x4c000000 Configuration flash. */
/* 0x4e000000 Ethernet. */
/* 0x4f000000 USB. */
/* 0x50000000 PISMO. */
/* 0x54000000 PISMO. */
/* 0x58000000 PISMO. */
/* 0x5c000000 PISMO. */
/* 0x60000000 PCI. */
/* 0x61000000 PCI Self Config. */
/* 0x62000000 PCI Config. */
/* 0x63000000 PCI IO. */
/* 0x64000000 PCI mem 0. */
/* 0x68000000 PCI mem 1. */
/* 0x6c000000 PCI mem 2. */
/* ??? Hack to map an additional page of ram for the secondary CPU
startup code. I guess this works on real hardware because the
BootROM happens to be in ROM/flash or in memory that isn't clobbered
until after Linux boots the secondary CPUs. */
memory_region_init_ram(ram_hack, "realview.hack", 0x1000);
vmstate_register_ram_global(ram_hack);
memory_region_add_subregion(sysmem, SMP_BOOT_ADDR, ram_hack);
realview_binfo.ram_size = ram_size;
realview_binfo.kernel_filename = kernel_filename;
realview_binfo.kernel_cmdline = kernel_cmdline;
realview_binfo.initrd_filename = initrd_filename;
realview_binfo.nb_cpus = smp_cpus;
realview_binfo.board_id = realview_board_id[board_type];
realview_binfo.loader_start = (board_type == BOARD_PB_A8 ? 0x70000000 : 0);
arm_load_kernel(first_cpu, &realview_binfo);
}
static void realview_eb_init(ram_addr_t ram_size,
const char *boot_device,
const char *kernel_filename, const char *kernel_cmdline,
const char *initrd_filename, const char *cpu_model)
{
if (!cpu_model) {
cpu_model = "arm926";
}
realview_init(ram_size, boot_device, kernel_filename, kernel_cmdline,
initrd_filename, cpu_model, BOARD_EB);
}
static void realview_eb_mpcore_init(ram_addr_t ram_size,
const char *boot_device,
const char *kernel_filename, const char *kernel_cmdline,
const char *initrd_filename, const char *cpu_model)
{
if (!cpu_model) {
cpu_model = "arm11mpcore";
}
realview_init(ram_size, boot_device, kernel_filename, kernel_cmdline,
initrd_filename, cpu_model, BOARD_EB_MPCORE);
}
static void realview_pb_a8_init(ram_addr_t ram_size,
const char *boot_device,
const char *kernel_filename, const char *kernel_cmdline,
const char *initrd_filename, const char *cpu_model)
{
if (!cpu_model) {
cpu_model = "cortex-a8";
}
realview_init(ram_size, boot_device, kernel_filename, kernel_cmdline,
initrd_filename, cpu_model, BOARD_PB_A8);
}
static void realview_pbx_a9_init(ram_addr_t ram_size,
const char *boot_device,
const char *kernel_filename, const char *kernel_cmdline,
const char *initrd_filename, const char *cpu_model)
{
if (!cpu_model) {
cpu_model = "cortex-a9";
}
realview_init(ram_size, boot_device, kernel_filename, kernel_cmdline,
initrd_filename, cpu_model, BOARD_PBX_A9);
}
static QEMUMachine realview_eb_machine = {
.name = "realview-eb",
.desc = "ARM RealView Emulation Baseboard (ARM926EJ-S)",
.init = realview_eb_init,
.use_scsi = 1,
};
static QEMUMachine realview_eb_mpcore_machine = {
.name = "realview-eb-mpcore",
.desc = "ARM RealView Emulation Baseboard (ARM11MPCore)",
.init = realview_eb_mpcore_init,
.use_scsi = 1,
.max_cpus = 4,
};
static QEMUMachine realview_pb_a8_machine = {
.name = "realview-pb-a8",
.desc = "ARM RealView Platform Baseboard for Cortex-A8",
.init = realview_pb_a8_init,
};
static QEMUMachine realview_pbx_a9_machine = {
.name = "realview-pbx-a9",
.desc = "ARM RealView Platform Baseboard Explore for Cortex-A9",
.init = realview_pbx_a9_init,
.use_scsi = 1,
.max_cpus = 4,
};
static void realview_machine_init(void)
{
qemu_register_machine(&realview_eb_machine);
qemu_register_machine(&realview_eb_mpcore_machine);
qemu_register_machine(&realview_pb_a8_machine);
qemu_register_machine(&realview_pbx_a9_machine);
}
machine_init(realview_machine_init);
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