diff options
Diffstat (limited to 'hw/arm/imx25_pdk.c')
| -rw-r--r-- | hw/arm/imx25_pdk.c | 159 |
1 files changed, 159 insertions, 0 deletions
diff --git a/hw/arm/imx25_pdk.c b/hw/arm/imx25_pdk.c new file mode 100644 index 0000000..c34667f --- /dev/null +++ b/hw/arm/imx25_pdk.c @@ -0,0 +1,159 @@ +/* + * Copyright (c) 2013 Jean-Christophe Dubois <jcd@tribudubois.net> + * + * PDK Board System emulation. + * + * Based on hw/arm/kzm.c + * + * Copyright (c) 2008 OKL and 2011 NICTA + * Written by Hans at OK-Labs + * Updated by Peter Chubb. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program 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 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/arm/fsl-imx25.h" +#include "hw/boards.h" +#include "qemu/error-report.h" +#include "exec/address-spaces.h" +#include "sysemu/qtest.h" +#include "hw/i2c/i2c.h" + +/* Memory map for PDK Emulation Baseboard: + * 0x00000000-0x7fffffff See i.MX25 SOC fr support + * 0x80000000-0x87ffffff RAM + Alias EMULATED + * 0x90000000-0x9fffffff RAM + Alias EMULATED + * 0xa0000000-0xa7ffffff Flash IGNORED + * 0xa8000000-0xafffffff Flash IGNORED + * 0xb0000000-0xb1ffffff SRAM IGNORED + * 0xb2000000-0xb3ffffff SRAM IGNORED + * 0xb4000000-0xb5ffffff CS4 IGNORED + * 0xb6000000-0xb8000fff Reserved IGNORED + * 0xb8001000-0xb8001fff SDRAM CTRL reg IGNORED + * 0xb8002000-0xb8002fff WEIM CTRL reg IGNORED + * 0xb8003000-0xb8003fff M3IF CTRL reg IGNORED + * 0xb8004000-0xb8004fff EMI CTRL reg IGNORED + * 0xb8005000-0xbaffffff Reserved IGNORED + * 0xbb000000-0xbb000fff NAND flash area buf IGNORED + * 0xbb001000-0xbb0011ff NAND flash reserved IGNORED + * 0xbb001200-0xbb001dff Reserved IGNORED + * 0xbb001e00-0xbb001fff NAN flash CTRL reg IGNORED + * 0xbb012000-0xbfffffff Reserved IGNORED + * 0xc0000000-0xffffffff Reserved IGNORED + */ + +typedef struct IMX25PDK { + FslIMX25State soc; + MemoryRegion ram; + MemoryRegion ram_alias; +} IMX25PDK; + +static struct arm_boot_info imx25_pdk_binfo; + +static void imx25_pdk_init(MachineState *machine) +{ + IMX25PDK *s = g_new0(IMX25PDK, 1); + Error *err = NULL; + unsigned int ram_size; + unsigned int alias_offset; + int i; + + object_initialize(&s->soc, sizeof(s->soc), TYPE_FSL_IMX25); + object_property_add_child(OBJECT(machine), "soc", OBJECT(&s->soc), + &error_abort); + + object_property_set_bool(OBJECT(&s->soc), true, "realized", &err); + if (err != NULL) { + error_report("%s", error_get_pretty(err)); + exit(1); + } + + /* We need to initialize our memory */ + if (machine->ram_size > (FSL_IMX25_SDRAM0_SIZE + FSL_IMX25_SDRAM1_SIZE)) { + error_report("WARNING: RAM size " RAM_ADDR_FMT " above max supported, " + "reduced to %x", machine->ram_size, + FSL_IMX25_SDRAM0_SIZE + FSL_IMX25_SDRAM1_SIZE); + machine->ram_size = FSL_IMX25_SDRAM0_SIZE + FSL_IMX25_SDRAM1_SIZE; + } + + memory_region_allocate_system_memory(&s->ram, NULL, "imx25.ram", + machine->ram_size); + memory_region_add_subregion(get_system_memory(), FSL_IMX25_SDRAM0_ADDR, + &s->ram); + + /* initialize the alias memory if any */ + for (i = 0, ram_size = machine->ram_size, alias_offset = 0; + (i < 2) && ram_size; i++) { + unsigned int size; + static const struct { + hwaddr addr; + unsigned int size; + } ram[2] = { + { FSL_IMX25_SDRAM0_ADDR, FSL_IMX25_SDRAM0_SIZE }, + { FSL_IMX25_SDRAM1_ADDR, FSL_IMX25_SDRAM1_SIZE }, + }; + + size = MIN(ram_size, ram[i].size); + + ram_size -= size; + + if (size < ram[i].size) { + memory_region_init_alias(&s->ram_alias, NULL, "ram.alias", + &s->ram, alias_offset, ram[i].size - size); + memory_region_add_subregion(get_system_memory(), + ram[i].addr + size, &s->ram_alias); + } + + alias_offset += ram[i].size; + } + + imx25_pdk_binfo.ram_size = machine->ram_size; + imx25_pdk_binfo.kernel_filename = machine->kernel_filename; + imx25_pdk_binfo.kernel_cmdline = machine->kernel_cmdline; + imx25_pdk_binfo.initrd_filename = machine->initrd_filename; + imx25_pdk_binfo.loader_start = FSL_IMX25_SDRAM0_ADDR; + imx25_pdk_binfo.board_id = 1771, + imx25_pdk_binfo.nb_cpus = 1; + + /* + * We test explicitly for qtest here as it is not done (yet?) in + * arm_load_kernel(). Without this the "make check" command would + * fail. + */ + if (!qtest_enabled()) { + arm_load_kernel(&s->soc.cpu, &imx25_pdk_binfo); + } else { + /* + * This I2C device doesn't exist on the real board. + * We add it here (only on qtest usage) to be able to do a bit + * of simple qtest. See "make check" for details. + */ + i2c_create_slave((I2CBus *)qdev_get_child_bus(DEVICE(&s->soc.i2c[0]), + "i2c"), + "ds1338", 0x68); + } +} + +static QEMUMachine imx25_pdk_machine = { + .name = "imx25_pdk", + .desc = "ARM i.MX25 PDK board (ARM926)", + .init = imx25_pdk_init, +}; + +static void imx25_pdk_machine_init(void) +{ + qemu_register_machine(&imx25_pdk_machine); +} + +machine_init(imx25_pdk_machine_init) |