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qemu/hw/arm/mainstone.c
Peter Maydell a2531bb855 hw/arm: Deprecate various old Arm machine types 
QEMU includes some models of old Arm machine types which are
a bit problematic for us because:
 * they're written in a very old way that uses numerous APIs that we
   would like to get away from (eg they don't use qdev, they use
   qemu_system_reset_request(), they use vmstate_register(), etc)
 * they've been that way for a decade plus and nobody particularly has
   stepped up to try to modernise the code (beyond some occasional
   work here and there)
 * we often don't have test cases for them, which means that if we
   do try to do the necessary refactoring work on them we have no
   idea if they even still work at all afterwards

All these machine types are also of hardware that has largely passed
away into history and where I would not be surprised to find that
e.g. the Linux kernel support was never tested on real hardware
any more.

After some consultation with the Linux kernel developers, we
are going to deprecate:

All PXA2xx machines:

akita                Sharp SL-C1000 (Akita) PDA (PXA270)
borzoi               Sharp SL-C3100 (Borzoi) PDA (PXA270)
connex               Gumstix Connex (PXA255)
mainstone            Mainstone II (PXA27x)
spitz                Sharp SL-C3000 (Spitz) PDA (PXA270)
terrier              Sharp SL-C3200 (Terrier) PDA (PXA270)
tosa                 Sharp SL-6000 (Tosa) PDA (PXA255)
verdex               Gumstix Verdex Pro XL6P COMs (PXA270)
z2                   Zipit Z2 (PXA27x)

All OMAP2 machines:

n800                 Nokia N800 tablet aka. RX-34 (OMAP2420)
n810                 Nokia N810 tablet aka. RX-44 (OMAP2420)

One of the OMAP1 machines:

cheetah              Palm Tungsten|E aka. Cheetah PDA (OMAP310)

Rationale:
 * for QEMU dropping individual machines is much less beneficial
   than if we can drop support for an entire SoC
 * the OMAP2 QEMU code in particular is large, old and unmaintained,
   and none of the OMAP2 kernel maintainers said they were using
   QEMU in any of their testing/development
 * although there is a setup that is booting test kernels on some
   of the PXA2xx machines, nobody seemed to be using them as part
   of their active kernel development and my impression from the
   email thread is that PXA is the closest of all these SoC families
   to being dropped from the kernel soon
 * nobody said they were using cheetah, so it's entirely
   untested and quite probably broken
 * on the other hand the OMAP1 sx1 model does seem to be being
   used as part of kernel development, and there was interest
   in keeping collie around

In particular, the mainstone, tosa and z2 machine types have
already been dropped from Linux.

Mark all these machine types as deprecated.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20240308171621.3749894-1-peter.maydell@linaro.org
2024-03-11 16:42:57 +00:00

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/*
* PXA270-based Intel Mainstone platforms.
*
* Copyright (c) 2007 by Armin Kuster <akuster@kama-aina.net> or
* <akuster@mvista.com>
*
* Code based on spitz platform by Andrzej Zaborowski <balrog@zabor.org>
*
* This code is licensed under the GNU GPL v2.
*
* Contributions after 2012-01-13 are licensed under the terms of the
* GNU GPL, version 2 or (at your option) any later version.
*/
#include "qemu/osdep.h"
#include "qemu/units.h"
#include "qemu/error-report.h"
#include "qapi/error.h"
#include "hw/arm/pxa.h"
#include "hw/arm/boot.h"
#include "net/net.h"
#include "hw/net/smc91c111.h"
#include "hw/boards.h"
#include "hw/block/flash.h"
#include "hw/sysbus.h"
#include "exec/address-spaces.h"
/* Device addresses */
#define MST_FPGA_PHYS 0x08000000
#define MST_ETH_PHYS 0x10000300
#define MST_FLASH_0 0x00000000
#define MST_FLASH_1 0x04000000
/* IRQ definitions */
#define MMC_IRQ 0
#define USIM_IRQ 1
#define USBC_IRQ 2
#define ETHERNET_IRQ 3
#define AC97_IRQ 4
#define PEN_IRQ 5
#define MSINS_IRQ 6
#define EXBRD_IRQ 7
#define S0_CD_IRQ 9
#define S0_STSCHG_IRQ 10
#define S0_IRQ 11
#define S1_CD_IRQ 13
#define S1_STSCHG_IRQ 14
#define S1_IRQ 15
static const struct keymap map[0xE0] = {
[0 ... 0xDF] = { -1, -1 },
[0x1e] = {0,0}, /* a */
[0x30] = {0,1}, /* b */
[0x2e] = {0,2}, /* c */
[0x20] = {0,3}, /* d */
[0x12] = {0,4}, /* e */
[0x21] = {0,5}, /* f */
[0x22] = {1,0}, /* g */
[0x23] = {1,1}, /* h */
[0x17] = {1,2}, /* i */
[0x24] = {1,3}, /* j */
[0x25] = {1,4}, /* k */
[0x26] = {1,5}, /* l */
[0x32] = {2,0}, /* m */
[0x31] = {2,1}, /* n */
[0x18] = {2,2}, /* o */
[0x19] = {2,3}, /* p */
[0x10] = {2,4}, /* q */
[0x13] = {2,5}, /* r */
[0x1f] = {3,0}, /* s */
[0x14] = {3,1}, /* t */
[0x16] = {3,2}, /* u */
[0x2f] = {3,3}, /* v */
[0x11] = {3,4}, /* w */
[0x2d] = {3,5}, /* x */
[0x34] = {4,0}, /* . */
[0x15] = {4,2}, /* y */
[0x2c] = {4,3}, /* z */
[0x35] = {4,4}, /* / */
[0xc7] = {5,0}, /* Home */
[0x2a] = {5,1}, /* shift */
/*
* There are two matrix positions which map to space,
* but QEMU can only use one of them for the reverse
* mapping, so simply use the second one.
*/
/* [0x39] = {5,2}, space */
[0x39] = {5,3}, /* space */
/*
* Matrix position {5,4} and other keys are missing here.
* TODO: Compare with Linux code and test real hardware.
*/
[0x1c] = {5,4}, /* enter */
[0x0e] = {5,5}, /* backspace */
[0xc8] = {6,0}, /* up */
[0xd0] = {6,1}, /* down */
[0xcb] = {6,2}, /* left */
[0xcd] = {6,3}, /* right */
};
enum mainstone_model_e { mainstone };
#define MAINSTONE_RAM_SIZE (64 * MiB)
#define MAINSTONE_ROM_SIZE (8 * MiB)
#define MAINSTONE_FLASH_SIZE (32 * MiB)
static struct arm_boot_info mainstone_binfo = {
.loader_start = PXA2XX_SDRAM_BASE,
.ram_size = MAINSTONE_RAM_SIZE,
};
#define FLASH_SECTOR_SIZE (256 * KiB)
static void mainstone_common_init(MachineState *machine,
enum mainstone_model_e model, int arm_id)
{
hwaddr mainstone_flash_base[] = { MST_FLASH_0, MST_FLASH_1 };
PXA2xxState *mpu;
DeviceState *mst_irq;
DriveInfo *dinfo;
int i;
MemoryRegion *rom = g_new(MemoryRegion, 1);
/* Setup CPU & memory */
mpu = pxa270_init(mainstone_binfo.ram_size, machine->cpu_type);
memory_region_init_rom(rom, NULL, "mainstone.rom", MAINSTONE_ROM_SIZE,
&error_fatal);
memory_region_add_subregion(get_system_memory(), 0x00000000, rom);
/* There are two 32MiB flash devices on the board */
for (i = 0; i < 2; i ++) {
dinfo = drive_get(IF_PFLASH, 0, i);
pflash_cfi01_register(mainstone_flash_base[i],
i ? "mainstone.flash1" : "mainstone.flash0",
MAINSTONE_FLASH_SIZE,
dinfo ? blk_by_legacy_dinfo(dinfo) : NULL,
FLASH_SECTOR_SIZE, 4, 0, 0, 0, 0, 0);
}
mst_irq = sysbus_create_simple("mainstone-fpga", MST_FPGA_PHYS,
qdev_get_gpio_in(mpu->gpio, 0));
/* setup keypad */
pxa27x_register_keypad(mpu->kp, map, 0xe0);
/* MMC/SD host */
pxa2xx_mmci_handlers(mpu->mmc, NULL, qdev_get_gpio_in(mst_irq, MMC_IRQ));
pxa2xx_pcmcia_set_irq_cb(mpu->pcmcia[0],
qdev_get_gpio_in(mst_irq, S0_IRQ),
qdev_get_gpio_in(mst_irq, S0_CD_IRQ));
pxa2xx_pcmcia_set_irq_cb(mpu->pcmcia[1],
qdev_get_gpio_in(mst_irq, S1_IRQ),
qdev_get_gpio_in(mst_irq, S1_CD_IRQ));
smc91c111_init(MST_ETH_PHYS, qdev_get_gpio_in(mst_irq, ETHERNET_IRQ));
mainstone_binfo.board_id = arm_id;
arm_load_kernel(mpu->cpu, machine, &mainstone_binfo);
}
static void mainstone_init(MachineState *machine)
{
mainstone_common_init(machine, mainstone, 0x196);
}
static void mainstone2_machine_init(MachineClass *mc)
{
mc->desc = "Mainstone II (PXA27x)";
mc->init = mainstone_init;
mc->ignore_memory_transaction_failures = true;
mc->default_cpu_type = ARM_CPU_TYPE_NAME("pxa270-c5");
mc->deprecation_reason = "machine is old and unmaintained";
}
DEFINE_MACHINE("mainstone", mainstone2_machine_init)
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