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Re: [Qemu-devel] [PATCH v2 8/8] hw/mips: MIPS Boston board support
From: |
Yongbok Kim |
Subject: |
Re: [Qemu-devel] [PATCH v2 8/8] hw/mips: MIPS Boston board support |
Date: |
Tue, 24 Jan 2017 00:17:38 +0000 |
User-agent: |
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:45.0) Gecko/20100101 Thunderbird/45.4.0 |
On 08/09/2016 15:51, Paul Burton wrote:
> Introduce support for emulating the MIPS Boston development board. The
> Boston board is built around an FPGA & 3 PCIe controllers, one of which
> is connected to an Intel EG20T Platform Controller Hub. It is used
> during the development & debug of new CPUs and the software intended to
> run on them, and is essentially the successor to the older MIPS Malta
> board.
>
> This patch does not implement the EG20T, instead connecting an already
> supported ICH-9 AHCI controller. Whilst this isn't accurate it's enough
> for typical stock Boston software (eg. Linux kernels) to work with hard
> disks given that both the ICH-9 & EG20T implement the AHCI
> specification.
>
> Boston boards typically boot kernels in the FIT image format, and this
> patch will treat kernels provided to QEMU as such. When loading a kernel
> directly, the board code will generate minimal firmware much as the
> Malta board code does. This firmware will set up the CM, CPC & GIC
> register base addresses then set argument registers & jump to the kernel
> entry point. Alternatively, bootloader code may be loaded using the bios
> argument in which case no firmware will be generated & execution will
> proceed from the start of the boot code at the default MIPS boot
> exception vector (offset 0x1fc00000 into (c)kseg1).
>
> Currently real Boston boards are always used with FPGA bitfiles that
> include a Global Interrupt Controller (GIC), so the interrupt
> configuration is only defined for such cases. Therefore the board will
> only allow use of CPUs which implement the CPS components, including the
> GIC, and will otherwise exit with a message.
>
> Signed-off-by: Paul Burton <address@hidden>
> ---
> Changes in v2:
> - Require libfdt for mips*-softmmu builds, so that the FIT loader can be used.
> ---
> configure | 2 +-
> default-configs/mips-softmmu-common.mak | 2 +
> hw/mips/Makefile.objs | 1 +
> hw/mips/boston.c | 526
> ++++++++++++++++++++++++++++++++
> 4 files changed, 530 insertions(+), 1 deletion(-)
> create mode 100644 hw/mips/boston.c
>
> diff --git a/configure b/configure
> index 1c4e117..242a113 100755
> --- a/configure
> +++ b/configure
> @@ -3308,7 +3308,7 @@ fi
> fdt_required=no
> for target in $target_list; do
> case $target in
> - aarch64*-softmmu|arm*-softmmu|ppc*-softmmu|microblaze*-softmmu)
> +
> aarch64*-softmmu|arm*-softmmu|ppc*-softmmu|microblaze*-softmmu|mips*-softmmu)
As I mentioned earlier email, bigendian target doesn't work correctly. it
has be little endian only for now.
> fdt_required=yes
> ;;
> esac
> diff --git a/default-configs/mips-softmmu-common.mak
> b/default-configs/mips-softmmu-common.mak
> index 0394514..09b7334 100644
> --- a/default-configs/mips-softmmu-common.mak
> +++ b/default-configs/mips-softmmu-common.mak
> @@ -32,3 +32,5 @@ CONFIG_ISA_TESTDEV=y
> CONFIG_EMPTY_SLOT=y
> CONFIG_MIPS_CPS=y
> CONFIG_MIPS_ITU=y
> +CONFIG_MIPS_BOSTON=y
> +CONFIG_PCI_XILINX=y
> diff --git a/hw/mips/Makefile.objs b/hw/mips/Makefile.objs
> index 9352a1c..48cd2ef 100644
> --- a/hw/mips/Makefile.objs
> +++ b/hw/mips/Makefile.objs
> @@ -4,3 +4,4 @@ obj-$(CONFIG_JAZZ) += mips_jazz.o
> obj-$(CONFIG_FULONG) += mips_fulong2e.o
> obj-y += gt64xxx_pci.o
> obj-$(CONFIG_MIPS_CPS) += cps.o
> +obj-$(CONFIG_MIPS_BOSTON) += boston.o
> diff --git a/hw/mips/boston.c b/hw/mips/boston.c
> new file mode 100644
> index 0000000..4e02907
> --- /dev/null
> +++ b/hw/mips/boston.c
> @@ -0,0 +1,526 @@
> +/*
> + * MIPS Boston development board emulation.
> + *
> + * Copyright (c) 2016 Imagination Technologies
> + *
> + * This library is free software; you can redistribute it and/or
> + * modify it under the terms of the GNU Lesser General Public
> + * License as published by the Free Software Foundation; either
> + * version 2 of the License, or (at your option) any later version.
> + *
> + * This library is distributed in the hope that it will be useful,
> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
> + * Lesser General Public License for more details.
> + *
> + * You should have received a copy of the GNU Lesser General Public
> + * License along with this library; if not, see
> <http://www.gnu.org/licenses/>.
> + */
> +
> +#include "qemu/osdep.h"
> +#include "qemu-common.h"
> +
> +#include "exec/address-spaces.h"
> +#include "hw/boards.h"
> +#include "hw/char/serial.h"
> +#include "hw/hw.h"
> +#include "hw/ide/pci.h"
> +#include "hw/ide/ahci.h"
> +#include "hw/loader.h"
> +#include "hw/loader-fit.h"
> +#include "hw/mips/cps.h"
> +#include "hw/mips/cpudevs.h"
> +#include "hw/pci-host/xilinx-pcie.h"
> +#include "qapi/error.h"
> +#include "qemu/cutils.h"
> +#include "qemu/error-report.h"
> +#include "qemu/log.h"
> +#include "sysemu/char.h"
> +#include "sysemu/device_tree.h"
> +#include "sysemu/sysemu.h"
> +
> +#include <libfdt.h>
> +
> +#define TYPE_MIPS_BOSTON "mips-boston"
> +#define BOSTON(obj) OBJECT_CHECK(BostonState, (obj), TYPE_MIPS_BOSTON)
> +
> +typedef struct {
> + SysBusDevice parent_obj;
> +
> + MachineState *mach;
> + MIPSCPSState *cps;
> + SerialState *uart;
> +
> + CharDriverState *lcd_display;
> + char lcd_content[8];
> +
> + hwaddr kernel_entry;
> + hwaddr fdt_base;
> +} BostonState;
> +
> +enum boston_plat_reg {
> + PLAT_FPGA_BUILD = 0x00,
> + PLAT_CORE_CL = 0x04,
> + PLAT_WRAPPER_CL = 0x08,
> + PLAT_SYSCLK_STATUS = 0x0c,
> + PLAT_SOFTRST_CTL = 0x10,
> +#define PLAT_SOFTRST_CTL_SYSRESET (1 << 4)
> + PLAT_DDR3_STATUS = 0x14,
> +#define PLAT_DDR3_STATUS_LOCKED (1 << 0)
> +#define PLAT_DDR3_STATUS_CALIBRATED (1 << 2)
> + PLAT_PCIE_STATUS = 0x18,
> +#define PLAT_PCIE_STATUS_PCIE0_LOCKED (1 << 0)
> +#define PLAT_PCIE_STATUS_PCIE1_LOCKED (1 << 8)
> +#define PLAT_PCIE_STATUS_PCIE2_LOCKED (1 << 16)
> + PLAT_FLASH_CTL = 0x1c,
> + PLAT_SPARE0 = 0x20,
> + PLAT_SPARE1 = 0x24,
> + PLAT_SPARE2 = 0x28,
> + PLAT_SPARE3 = 0x2c,
> + PLAT_MMCM_DIV = 0x30,
> +#define PLAT_MMCM_DIV_CLK0DIV_SHIFT 0
> +#define PLAT_MMCM_DIV_INPUT_SHIFT 8
> +#define PLAT_MMCM_DIV_MUL_SHIFT 16
> +#define PLAT_MMCM_DIV_CLK1DIV_SHIFT 24
> + PLAT_BUILD_CFG = 0x34,
> +#define PLAT_BUILD_CFG_IOCU_EN (1 << 0)
> +#define PLAT_BUILD_CFG_PCIE0_EN (1 << 1)
> +#define PLAT_BUILD_CFG_PCIE1_EN (1 << 2)
> +#define PLAT_BUILD_CFG_PCIE2_EN (1 << 3)
> + PLAT_DDR_CFG = 0x38,
> +#define PLAT_DDR_CFG_SIZE (0xf << 0)
> +#define PLAT_DDR_CFG_MHZ (0xfff << 4)
> + PLAT_NOC_PCIE0_ADDR = 0x3c,
> + PLAT_NOC_PCIE1_ADDR = 0x40,
> + PLAT_NOC_PCIE2_ADDR = 0x44,
> + PLAT_SYS_CTL = 0x48,
> +};
> +
> +static void boston_lcd_init(CharDriverState *chr)
> +{
> + qemu_chr_fe_printf(chr, " ");
> +}
> +
> +static uint64_t boston_lcd_read(void *opaque, hwaddr addr,
> + unsigned size)
> +{
> + BostonState *s = opaque;
> + uint64_t val = 0;
> +
> + switch (size) {
> + case 8:
> + val |= (uint64_t)s->lcd_content[(addr + 7) & 0x7] << 56;
> + val |= (uint64_t)s->lcd_content[(addr + 6) & 0x7] << 48;
> + val |= (uint64_t)s->lcd_content[(addr + 5) & 0x7] << 40;
> + val |= (uint64_t)s->lcd_content[(addr + 4) & 0x7] << 32;
/* fall through */ for each cases
> + case 4:
> + val |= (uint64_t)s->lcd_content[(addr + 3) & 0x7] << 24;
> + val |= (uint64_t)s->lcd_content[(addr + 2) & 0x7] << 16;
> + case 2:
> + val |= (uint64_t)s->lcd_content[(addr + 1) & 0x7] << 8;
> + case 1:
> + val |= (uint64_t)s->lcd_content[(addr + 0) & 0x7];
> + break;
> + }
> +
> + return val;
> +}
> +
> +static void boston_lcd_write(void *opaque, hwaddr addr,
> + uint64_t val, unsigned size)
> +{
> + BostonState *s = opaque;
> +
> + switch (size) {
> + case 8:
> + s->lcd_content[(addr + 7) & 0x7] = val >> 56;
> + s->lcd_content[(addr + 6) & 0x7] = val >> 48;
> + s->lcd_content[(addr + 5) & 0x7] = val >> 40;
> + s->lcd_content[(addr + 4) & 0x7] = val >> 32;
> + case 4:
> + s->lcd_content[(addr + 3) & 0x7] = val >> 24;
> + s->lcd_content[(addr + 2) & 0x7] = val >> 16;
> + case 2:
> + s->lcd_content[(addr + 1) & 0x7] = val >> 8;
> + case 1:
> + s->lcd_content[(addr + 0) & 0x7] = val;
> + break;
> + }
> +
> + qemu_chr_fe_printf(s->lcd_display,
> + "\r%-8.8s", s->lcd_content);
> +}
> +
> +static const MemoryRegionOps boston_lcd_ops = {
> + .read = boston_lcd_read,
> + .write = boston_lcd_write,
> + .endianness = DEVICE_NATIVE_ENDIAN,
> +};
> +
> +static uint64_t boston_platreg_read(void *opaque, hwaddr addr,
> + unsigned size)
> +{
> + BostonState *s = opaque;
> + uint32_t gic_freq, val;
> +
> + if (size != 4) {
> + qemu_log_mask(LOG_UNIMP, "%uB platform register read", size);
> + return 0;
> + }
> +
> + switch (addr & 0xffff) {
> + case PLAT_FPGA_BUILD:
> + case PLAT_CORE_CL:
> + case PLAT_WRAPPER_CL:
> + return 0;
> + case PLAT_DDR3_STATUS:
> + return PLAT_DDR3_STATUS_LOCKED | PLAT_DDR3_STATUS_CALIBRATED;
> + case PLAT_MMCM_DIV:
> + gic_freq = mips_gictimer_get_freq(s->cps->gic.gic_timer) / 1000000;
magic number
> + val = gic_freq << PLAT_MMCM_DIV_INPUT_SHIFT;
> + val |= 1 << PLAT_MMCM_DIV_MUL_SHIFT;
> + val |= 1 << PLAT_MMCM_DIV_CLK0DIV_SHIFT;
> + val |= 1 << PLAT_MMCM_DIV_CLK1DIV_SHIFT;
> + return val;
> + case PLAT_BUILD_CFG:
> + val = PLAT_BUILD_CFG_PCIE0_EN;
> + val |= PLAT_BUILD_CFG_PCIE1_EN;
> + val |= PLAT_BUILD_CFG_PCIE2_EN;
> + return val;
> + case PLAT_DDR_CFG:
> + val = s->mach->ram_size / G_BYTE;
> + assert(!(val & ~PLAT_DDR_CFG_SIZE));
> + val |= PLAT_DDR_CFG_MHZ;
> + return val;
> + default:
> + qemu_log_mask(LOG_UNIMP, "Read platform register 0x%" HWADDR_PRIx,
> + addr & 0xffff);
> + return 0;
> + }
> +}
> +
> +static void boston_platreg_write(void *opaque, hwaddr addr,
> + uint64_t val, unsigned size)
> +{
> + if (size != 4) {
> + qemu_log_mask(LOG_UNIMP, "%uB platform register write", size);
> + return;
> + }
> +
> + switch (addr & 0xffff) {
> + case PLAT_FPGA_BUILD:
> + case PLAT_CORE_CL:
> + case PLAT_WRAPPER_CL:
> + case PLAT_DDR3_STATUS:
> + case PLAT_PCIE_STATUS:
> + case PLAT_MMCM_DIV:
> + case PLAT_BUILD_CFG:
> + case PLAT_DDR_CFG:
> + /* read only */
> + break;
> + case PLAT_SOFTRST_CTL:
> + if (val & PLAT_SOFTRST_CTL_SYSRESET) {
> + qemu_system_reset_request();
> + }
> + break;
> + default:
> + qemu_log_mask(LOG_UNIMP, "Write platform register 0x%" HWADDR_PRIx
> + " = 0x%" PRIx64, addr & 0xffff, val);
> + break;
> + }
> +}
> +
> +static const MemoryRegionOps boston_platreg_ops = {
> + .read = boston_platreg_read,
> + .write = boston_platreg_write,
> + .endianness = DEVICE_NATIVE_ENDIAN,
> +};
> +
> +static void boston_flash_write(void *opaque, hwaddr addr,
> + uint64_t val, unsigned size)
> +{
> +}
> +
> +static const MemoryRegionOps boston_flash_ops = {
> + .write = boston_flash_write,
> + .endianness = DEVICE_NATIVE_ENDIAN,
> +};
> +
> +static const TypeInfo boston_device = {
> + .name = TYPE_MIPS_BOSTON,
> + .parent = TYPE_SYS_BUS_DEVICE,
> + .instance_size = sizeof(BostonState),
> +};
> +
> +static void boston_register_types(void)
> +{
> + type_register_static(&boston_device);
> +}
> +type_init(boston_register_types)
> +
> +static void gen_firmware(uint32_t *p, hwaddr kernel_entry, hwaddr fdt_addr,
> + bool is_64b)
> +{
> + const uint32_t cm_base = 0x16100000;
> + const uint32_t gic_base = 0x16120000;
> + const uint32_t cpc_base = 0x16200000;
> +
> + /* Move CM GCRs */
> + if (is_64b) {
> + stl_p(p++, 0x40287803); /* dmfc0 $8, CMGCRBase */
> + stl_p(p++, 0x00084138); /* dsll $8, $8, 4 */
> + } else {
> + stl_p(p++, 0x40087803); /* mfc0 $8, CMGCRBase */
> + stl_p(p++, 0x00084100); /* sll $8, $8, 4 */
> + }
> + stl_p(p++, 0x3c09a000); /* lui $9, 0xa000 */
> + stl_p(p++, 0x01094025); /* or $8, $9 */
> + stl_p(p++, 0x3c0a0000 | (cm_base >> 16)); /* lui $10, cm_base >> 16 */
> + if (is_64b) {
> + stl_p(p++, 0xfd0a0008); /* sd $10, 0x8($8) */
> + } else {
> + stl_p(p++, 0xad0a0008); /* sw $10, 0x8($8) */
> + }
> + stl_p(p++, 0x012a4025); /* or $8, $10 */
> +
> + /* Move & enable GIC GCRs */
> + stl_p(p++, 0x3c090000 | (gic_base >> 16)); /* lui $9, gic_base >> 16 */
> + stl_p(p++, 0x35290001); /* ori $9, 0x1 */
> + if (is_64b) {
> + stl_p(p++, 0xfd090080); /* sd $9, 0x80($8) */
> + } else {
> + stl_p(p++, 0xad090080); /* sw $9, 0x80($8) */
> + }
> +
> + /* Move & enable CPC GCRs */
> + stl_p(p++, 0x3c090000 | (cpc_base >> 16)); /* lui $9, cpc_base >> 16 */
> + stl_p(p++, 0x35290001); /* ori $9, 0x1 */
> + if (is_64b) {
> + stl_p(p++, 0xfd090088); /* sd $9, 0x88($8) */
> + } else {
> + stl_p(p++, 0xad090088); /* sw $9, 0x88($8) */
> + }
> +
> + /*
> + * Setup argument registers to follow the UHI boot protocol:
> + *
> + * a0/$4 = -2
> + * a1/$5 = virtual address of FDT
> + * a2/$6 = 0
> + * a3/$7 = 0
> + */
> + stl_p(p++, 0x2404fffe); /* li $4, -2 */
> + /* lui $5, hi(fdt_addr) */
> + stl_p(p++, 0x3c050000 | ((fdt_addr >> 16) & 0xffff));
> + if (fdt_addr & 0xffff) { /* ori $5, lo(fdt_addr) */
> + stl_p(p++, 0x34a50000 | (fdt_addr & 0xffff));
> + }
> + stl_p(p++, 0x34060000); /* li $6, 0 */
> + stl_p(p++, 0x34070000); /* li $7, 0 */
> +
> + /* Load kernel entry address & jump to it */
> + /* lui $25,
> hi(kernel_entry) */
> + stl_p(p++, 0x3c190000 | ((kernel_entry >> 16) & 0xffff));
> + /* ori $25,
> lo(kernel_entry) */
> + stl_p(p++, 0x37390000 | (kernel_entry & 0xffff));
> + stl_p(p++, 0x03200009); /* jr $25 */
> +}
> +
> +static const void *boston_fdt_filter(void *opaque, const void *fdt_orig,
> + const void *match_data, hwaddr
> *load_addr)
> +{
> + BostonState *s = BOSTON(opaque);
> + MachineState *machine = s->mach;
> + const char *cmdline;
> + int err;
> + void *fdt;
> + size_t fdt_sz, ram_low_sz, ram_high_sz;
> +
> + fdt_sz = fdt_totalsize(fdt_orig) * 2;
> + fdt = g_malloc0(fdt_sz);
> +
> + err = fdt_open_into(fdt_orig, fdt, fdt_sz);
> + if (err) {
> + fprintf(stderr, "unable to open FDT\n");
> + return NULL;
> + }
> +
> + cmdline = (machine->kernel_cmdline && machine->kernel_cmdline[0])
> + ? machine->kernel_cmdline : " ";
> + err = qemu_fdt_setprop_string(fdt, "/chosen", "bootargs", cmdline);
> + if (err < 0) {
> + fprintf(stderr, "couldn't set /chosen/bootargs\n");
> + return NULL;
> + }
> +
> + ram_low_sz = MIN(256 * M_BYTE, machine->ram_size);
> + ram_high_sz = machine->ram_size - ram_low_sz;
> + qemu_fdt_setprop_sized_cells(fdt, "/address@hidden", "reg",
> + 1, 0x00000000, 1, ram_low_sz,
> + 1, 0x90000000, 1, ram_high_sz);
> +
> + fdt = g_realloc(fdt, fdt_totalsize(fdt));
> + qemu_fdt_dumpdtb(fdt, fdt_sz);
> +
> + s->fdt_base = *load_addr;
> +
> + return fdt;
> +}
> +
> +static const void *boston_kernel_filter(void *opaque, const void *kernel,
> + hwaddr *load_addr, hwaddr
> *entry_addr)
> +{
> + BostonState *s = BOSTON(opaque);
> +
> + s->kernel_entry = *entry_addr;
> +
> + return kernel;
> +}
> +
> +static const struct fit_loader_match boston_matches[] = {
> + { "img,boston" },
> + { NULL },
> +};
> +
> +static const struct fit_loader boston_fit_loader = {
> + .matches = boston_matches,
> + .addr_to_phys = cpu_mips_kseg0_to_phys,
> + .fdt_filter = boston_fdt_filter,
> + .kernel_filter = boston_kernel_filter,
> +};
> +
> +static void boston_mach_init(MachineState *machine)
> +{
> + DeviceState *dev;
> + BostonState *s;
> + Error *err = NULL;
> + const char *cpu_model;
> + MemoryRegion *flash, *ddr, *ddr_low_alias, *lcd, *platreg;
> + MemoryRegion *sys_mem = get_system_memory();
> + XilinxPCIEHost *pcie2;
> + PCIDevice *ahci;
> + DriveInfo *hd[6];
> + int fw_size, fit_err;
> + bool is_64b;
> +
> + if (machine->ram_size % G_BYTE) {
I've tested with differnt ram size options but only 1GB and 2GB worked
fine. Perhaps it is better to restrict it up to 2GB for now?
> + error_report("Memory size must be a multiple of 1GB");
> + exit(1);
> + }
> +
> + cpu_model = machine->cpu_model ?: "I6400";
> +
> + dev = qdev_create(NULL, TYPE_MIPS_BOSTON);
> + qdev_init_nofail(dev);
> +
> + s = BOSTON(dev);
> + s->mach = machine;
> + s->cps = g_new0(MIPSCPSState, 1);
> +
> + if (!cpu_supports_cps_smp(cpu_model)) {
> + error_report("Boston requires CPUs which support CPS");
> + exit(1);
> + }
> +
> + is_64b = cpu_supports_isa(cpu_model, ISA_MIPS64);
> +
> + object_initialize(s->cps, sizeof(MIPSCPSState), TYPE_MIPS_CPS);
> + qdev_set_parent_bus(DEVICE(s->cps), sysbus_get_default());
> +
> + object_property_set_str(OBJECT(s->cps), cpu_model, "cpu-model", &err);
> + object_property_set_int(OBJECT(s->cps), smp_cpus, "num-vp", &err);
> + object_property_set_bool(OBJECT(s->cps), true, "realized", &err);
> +
> + if (err != NULL) {
> + error_report("%s", error_get_pretty(err));
> + exit(1);
> + }
> +
> + sysbus_mmio_map_overlap(SYS_BUS_DEVICE(s->cps), 0, 0, 1);
> +
> + flash = g_new(MemoryRegion, 1);
> + memory_region_init_rom_device(flash, NULL, &boston_flash_ops, s,
> + "boston.flash", 128 * M_BYTE, &err);
> + memory_region_add_subregion_overlap(sys_mem, 0x18000000, flash, 0);
> +
> + ddr = g_new(MemoryRegion, 1);
> + memory_region_allocate_system_memory(ddr, NULL, "boston.ddr",
> + machine->ram_size);
> + memory_region_add_subregion_overlap(sys_mem, 0x80000000, ddr, 0);
> +
> + ddr_low_alias = g_new(MemoryRegion, 1);
> + memory_region_init_alias(ddr_low_alias, NULL, "boston_low.ddr",
> + ddr, 0, MIN(machine->ram_size, (256 * M_BYTE)));
> + memory_region_add_subregion_overlap(sys_mem, 0, ddr_low_alias, 0);
> +
> + xilinx_pcie_init(sys_mem, 0,
> + 0x10000000, 32 * M_BYTE,
> + 0x40000000, 1 * G_BYTE,
> + get_cps_irq(s->cps, 2), false);
> +
> + xilinx_pcie_init(sys_mem, 1,
> + 0x12000000, 32 * M_BYTE,
> + 0x20000000, 512 * M_BYTE,
> + get_cps_irq(s->cps, 1), false);
> +
> + pcie2 = xilinx_pcie_init(sys_mem, 2,
> + 0x14000000, 32 * M_BYTE,
> + 0x16000000, 1 * M_BYTE,
> + get_cps_irq(s->cps, 0), true);
> +
> + platreg = g_new(MemoryRegion, 1);
> + memory_region_init_io(platreg, NULL, &boston_platreg_ops, s,
> + "boston-platregs", 0x1000);
> + memory_region_add_subregion_overlap(sys_mem, 0x17ffd000, platreg, 0);
> +
> + if (!serial_hds[0]) {
> + serial_hds[0] = qemu_chr_new("serial0", "null", NULL);
> + }
> +
> + s->uart = serial_mm_init(sys_mem, 0x17ffe000, 2,
> + get_cps_irq(s->cps, 3), 10000000,
> + serial_hds[0], DEVICE_NATIVE_ENDIAN);
> +
> + lcd = g_new(MemoryRegion, 1);
> + memory_region_init_io(lcd, NULL, &boston_lcd_ops, s, "boston-lcd", 0x8);
> + memory_region_add_subregion_overlap(sys_mem, 0x17fff000, lcd, 0);
> + s->lcd_display = qemu_chr_new("lcd", "vc:320x240", boston_lcd_init);
> +
> + ahci =
> pci_create_simple_multifunction(&PCI_BRIDGE(&pcie2->root)->sec_bus,
> + PCI_DEVFN(0, 0),
> + true, TYPE_ICH9_AHCI);
> + g_assert(ARRAY_SIZE(hd) == ICH_AHCI(ahci)->ahci.ports);
> + ide_drive_get(hd, ICH_AHCI(ahci)->ahci.ports);
> + ahci_ide_create_devs(ahci, hd);
> +
> + if (machine->firmware) {
> + fw_size = load_image_targphys(machine->firmware,
> + 0x1fc00000, 4 * M_BYTE);
> + if (fw_size == -1) {
> + error_printf("unable to load firmware image '%s'\n",
> + machine->firmware);
> + exit(1);
> + }
> + } else if (machine->kernel_filename) {
> + fit_err = load_fit(&boston_fit_loader, machine->kernel_filename, s);
> + if (fit_err) {
> + error_printf("unable to load FIT image\n");
> + exit(1);
> + }
> +
> + gen_firmware(memory_region_get_ram_ptr(flash) + 0x7c00000,
> + s->kernel_entry, s->fdt_base, is_64b);
> + } else {
> + error_printf("Please provide either a -kernel or -bios argument\n");
> + exit(1);
> + }
> +}
> +
> +static void boston_mach_class_init(MachineClass *mc)
> +{
> + mc->desc = "MIPS Boston";
> + mc->init = boston_mach_init;
> + mc->default_ram_size = 2 * G_BYTE;
> + mc->max_cpus = 16;
> +}
> +DEFINE_MACHINE("boston", boston_mach_class_init)
>
Sorry for delaying but in general looking good other than the bigendian
target and the ram size issues.
Reviewed-by: Yongbok Kim <address@hidden>
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