156 lines
5.5 KiB
C
156 lines
5.5 KiB
C
/*
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* Copyright (c) 2013 Jean-Christophe Dubois <jcd@tribudubois.net>
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*
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* PDK Board System emulation.
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*
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* Based on hw/arm/kzm.c
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*
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* Copyright (c) 2008 OKL and 2011 NICTA
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* Written by Hans at OK-Labs
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* Updated by Peter Chubb.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#include "qemu/osdep.h"
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#include "hw/arm/fsl-imx25.h"
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#include "hw/boards.h"
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#include "qemu/error-report.h"
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#include "exec/address-spaces.h"
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#include "sysemu/qtest.h"
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#include "hw/i2c/i2c.h"
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/* Memory map for PDK Emulation Baseboard:
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* 0x00000000-0x7fffffff See i.MX25 SOC fr support
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* 0x80000000-0x87ffffff RAM + Alias EMULATED
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* 0x90000000-0x9fffffff RAM + Alias EMULATED
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* 0xa0000000-0xa7ffffff Flash IGNORED
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* 0xa8000000-0xafffffff Flash IGNORED
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* 0xb0000000-0xb1ffffff SRAM IGNORED
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* 0xb2000000-0xb3ffffff SRAM IGNORED
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* 0xb4000000-0xb5ffffff CS4 IGNORED
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* 0xb6000000-0xb8000fff Reserved IGNORED
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* 0xb8001000-0xb8001fff SDRAM CTRL reg IGNORED
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* 0xb8002000-0xb8002fff WEIM CTRL reg IGNORED
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* 0xb8003000-0xb8003fff M3IF CTRL reg IGNORED
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* 0xb8004000-0xb8004fff EMI CTRL reg IGNORED
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* 0xb8005000-0xbaffffff Reserved IGNORED
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* 0xbb000000-0xbb000fff NAND flash area buf IGNORED
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* 0xbb001000-0xbb0011ff NAND flash reserved IGNORED
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* 0xbb001200-0xbb001dff Reserved IGNORED
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* 0xbb001e00-0xbb001fff NAN flash CTRL reg IGNORED
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* 0xbb012000-0xbfffffff Reserved IGNORED
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* 0xc0000000-0xffffffff Reserved IGNORED
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*/
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typedef struct IMX25PDK {
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FslIMX25State soc;
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MemoryRegion ram;
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MemoryRegion ram_alias;
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} IMX25PDK;
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static struct arm_boot_info imx25_pdk_binfo;
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static void imx25_pdk_init(MachineState *machine)
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{
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IMX25PDK *s = g_new0(IMX25PDK, 1);
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Error *err = NULL;
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unsigned int ram_size;
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unsigned int alias_offset;
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int i;
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object_initialize(&s->soc, sizeof(s->soc), TYPE_FSL_IMX25);
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object_property_add_child(OBJECT(machine), "soc", OBJECT(&s->soc),
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&error_abort);
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object_property_set_bool(OBJECT(&s->soc), true, "realized", &err);
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if (err != NULL) {
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error_report_err(err);
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exit(1);
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}
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/* We need to initialize our memory */
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if (machine->ram_size > (FSL_IMX25_SDRAM0_SIZE + FSL_IMX25_SDRAM1_SIZE)) {
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error_report("WARNING: RAM size " RAM_ADDR_FMT " above max supported, "
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"reduced to %x", machine->ram_size,
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FSL_IMX25_SDRAM0_SIZE + FSL_IMX25_SDRAM1_SIZE);
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machine->ram_size = FSL_IMX25_SDRAM0_SIZE + FSL_IMX25_SDRAM1_SIZE;
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}
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memory_region_allocate_system_memory(&s->ram, NULL, "imx25.ram",
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machine->ram_size);
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memory_region_add_subregion(get_system_memory(), FSL_IMX25_SDRAM0_ADDR,
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&s->ram);
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/* initialize the alias memory if any */
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for (i = 0, ram_size = machine->ram_size, alias_offset = 0;
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(i < 2) && ram_size; i++) {
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unsigned int size;
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static const struct {
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hwaddr addr;
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unsigned int size;
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} ram[2] = {
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{ FSL_IMX25_SDRAM0_ADDR, FSL_IMX25_SDRAM0_SIZE },
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{ FSL_IMX25_SDRAM1_ADDR, FSL_IMX25_SDRAM1_SIZE },
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};
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size = MIN(ram_size, ram[i].size);
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ram_size -= size;
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if (size < ram[i].size) {
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memory_region_init_alias(&s->ram_alias, NULL, "ram.alias",
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&s->ram, alias_offset, ram[i].size - size);
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memory_region_add_subregion(get_system_memory(),
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ram[i].addr + size, &s->ram_alias);
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}
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alias_offset += ram[i].size;
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}
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imx25_pdk_binfo.ram_size = machine->ram_size;
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imx25_pdk_binfo.kernel_filename = machine->kernel_filename;
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imx25_pdk_binfo.kernel_cmdline = machine->kernel_cmdline;
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imx25_pdk_binfo.initrd_filename = machine->initrd_filename;
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imx25_pdk_binfo.loader_start = FSL_IMX25_SDRAM0_ADDR;
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imx25_pdk_binfo.board_id = 1771,
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imx25_pdk_binfo.nb_cpus = 1;
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/*
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* We test explicitly for qtest here as it is not done (yet?) in
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* arm_load_kernel(). Without this the "make check" command would
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* fail.
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*/
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if (!qtest_enabled()) {
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arm_load_kernel(&s->soc.cpu, &imx25_pdk_binfo);
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} else {
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/*
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* This I2C device doesn't exist on the real board.
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* We add it here (only on qtest usage) to be able to do a bit
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* of simple qtest. See "make check" for details.
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*/
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i2c_create_slave((I2CBus *)qdev_get_child_bus(DEVICE(&s->soc.i2c[0]),
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"i2c"),
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"ds1338", 0x68);
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}
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}
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static void imx25_pdk_machine_init(MachineClass *mc)
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{
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mc->desc = "ARM i.MX25 PDK board (ARM926)";
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mc->init = imx25_pdk_init;
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}
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DEFINE_MACHINE("imx25-pdk", imx25_pdk_machine_init)
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