6b87668b08
drive_get_next() is basically a bad idea. It returns the "next" block backend of a certain interface type. "Next" means bus=0,unit=N, where subsequent calls count N up from zero, per interface type. This lets you define unit numbers implicitly by execution order. If the order changes, or new calls appear "in the middle", unit numbers change. ABI break. Hard to spot in review. Machine "imx25-pdk" connects backends with drive_get_next() in a counting loop. Change it to use drive_get() directly. This makes the unit numbers explicit in the code. Cc: Peter Maydell <peter.maydell@linaro.org> Cc: Jean-Christophe Dubois <jcd@tribudubois.net> Cc: qemu-arm@nongnu.org Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20211117163409.3587705-6-armbru@redhat.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
153 lines
5.1 KiB
C
153 lines
5.1 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 "qapi/error.h"
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#include "hw/qdev-properties.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 "sysemu/qtest.h"
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#include "hw/i2c/i2c.h"
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#include "qemu/cutils.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_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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unsigned int ram_size;
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unsigned int alias_offset;
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int i;
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object_initialize_child(OBJECT(machine), "soc", &s->soc, TYPE_FSL_IMX25);
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qdev_realize(DEVICE(&s->soc), NULL, &error_fatal);
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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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char *sz = size_to_str(FSL_IMX25_SDRAM0_SIZE + FSL_IMX25_SDRAM1_SIZE);
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error_report("RAM size more than %s is not supported", sz);
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g_free(sz);
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exit(EXIT_FAILURE);
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}
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memory_region_add_subregion(get_system_memory(), FSL_IMX25_SDRAM0_ADDR,
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machine->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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machine->ram,
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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.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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for (i = 0; i < FSL_IMX25_NUM_ESDHCS; i++) {
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BusState *bus;
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DeviceState *carddev;
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DriveInfo *di;
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BlockBackend *blk;
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di = drive_get(IF_SD, 0, i);
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blk = di ? blk_by_legacy_dinfo(di) : NULL;
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bus = qdev_get_child_bus(DEVICE(&s->soc.esdhc[i]), "sd-bus");
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carddev = qdev_new(TYPE_SD_CARD);
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qdev_prop_set_drive_err(carddev, "drive", blk, &error_fatal);
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qdev_realize_and_unref(carddev, bus, &error_fatal);
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}
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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, machine, &imx25_pdk_binfo);
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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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mc->ignore_memory_transaction_failures = true;
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mc->default_ram_id = "imx25.ram";
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}
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DEFINE_MACHINE("imx25-pdk", imx25_pdk_machine_init)
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