From b17bed5b1727e3aa9e37fc8e8c3222130ceab22f Mon Sep 17 00:00:00 2001 From: Thomas Huth Date: Sat, 30 Jun 2018 16:58:01 +0200 Subject: [PATCH] m68k: Add serial controller to the NeXTcube machine MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit The NeXTcube uses a normal 8530 serial controller, so we can simply use our normal "escc" device here. While we're at it, also add a boot-serial-test for the next-cube machine, now that the serial output works. Tested-by: Philippe Mathieu-Daudé Message-Id: <20190831074519.32613-6-huth@tuxfamily.org> Signed-off-by: Thomas Huth --- hw/m68k/Kconfig | 1 + hw/m68k/next-cube.c | 41 +++++++++++++++++++++++++++++++++++++++-- tests/boot-serial-test.c | 12 ++++++++++++ 3 files changed, 52 insertions(+), 2 deletions(-) diff --git a/hw/m68k/Kconfig b/hw/m68k/Kconfig index ec58a2eb06..a74fac5abd 100644 --- a/hw/m68k/Kconfig +++ b/hw/m68k/Kconfig @@ -11,3 +11,4 @@ config MCF5208 config NEXTCUBE bool select FRAMEBUFFER + select ESCC diff --git a/hw/m68k/next-cube.c b/hw/m68k/next-cube.c index 530c6ac46a..9a4a7328f9 100644 --- a/hw/m68k/next-cube.c +++ b/hw/m68k/next-cube.c @@ -10,11 +10,12 @@ */ #include "qemu/osdep.h" +#include "cpu.h" #include "exec/hwaddr.h" #include "exec/address-spaces.h" #include "sysemu/sysemu.h" #include "sysemu/qtest.h" -#include "hw/hw.h" +#include "hw/irq.h" #include "hw/m68k/next-cube.h" #include "hw/boards.h" #include "hw/loader.h" @@ -22,6 +23,7 @@ #include "hw/sysbus.h" #include "hw/char/escc.h" /* ZILOG 8530 Serial Emulation */ #include "hw/block/fdc.h" +#include "hw/qdev-properties.h" #include "qapi/error.h" #include "ui/console.h" #include "target/m68k/cpu.h" @@ -815,6 +817,39 @@ void next_irq(void *opaque, int number, int level) } } +static void next_serial_irq(void *opaque, int n, int level) +{ + /* DPRINTF("SCC IRQ NUM %i\n",n); */ + if (n) { + next_irq(opaque, NEXT_SCC_DMA_I, level); + } else { + next_irq(opaque, NEXT_SCC_I, level); + } +} + +static void next_escc_init(M68kCPU *cpu) +{ + qemu_irq *ser_irq = qemu_allocate_irqs(next_serial_irq, cpu, 2); + DeviceState *dev; + SysBusDevice *s; + + dev = qdev_create(NULL, TYPE_ESCC); + qdev_prop_set_uint32(dev, "disabled", 0); + qdev_prop_set_uint32(dev, "frequency", 9600 * 384); + qdev_prop_set_uint32(dev, "it_shift", 0); + qdev_prop_set_bit(dev, "bit_swap", true); + qdev_prop_set_chr(dev, "chrB", serial_hd(1)); + qdev_prop_set_chr(dev, "chrA", serial_hd(0)); + qdev_prop_set_uint32(dev, "chnBtype", escc_serial); + qdev_prop_set_uint32(dev, "chnAtype", escc_serial); + qdev_init_nofail(dev); + + s = SYS_BUS_DEVICE(dev); + sysbus_connect_irq(s, 0, ser_irq[0]); + sysbus_connect_irq(s, 1, ser_irq[1]); + sysbus_mmio_map(s, 0, 0x2118000); +} + static void next_cube_init(MachineState *machine) { M68kCPU *cpu; @@ -906,8 +941,10 @@ static void next_cube_init(MachineState *machine) } } - /* TODO: */ /* Serial */ + next_escc_init(cpu); + + /* TODO: */ /* Network */ /* SCSI */ diff --git a/tests/boot-serial-test.c b/tests/boot-serial-test.c index a54d007298..d3a54a0ba5 100644 --- a/tests/boot-serial-test.c +++ b/tests/boot-serial-test.c @@ -24,6 +24,17 @@ static const uint8_t kernel_mcf5208[] = { 0x60, 0xfa /* bra.s loop */ }; +static const uint8_t bios_nextcube[] = { + 0x06, 0x00, 0x00, 0x00, /* Initial SP */ + 0x01, 0x00, 0x00, 0x08, /* Initial PC */ + 0x41, 0xf9, 0x02, 0x11, 0x80, 0x00, /* lea 0x02118000,%a0 */ + 0x10, 0x3c, 0x00, 0x54, /* move.b #'T',%d0 */ + 0x11, 0x7c, 0x00, 0x05, 0x00, 0x01, /* move.b #5,1(%a0) Sel TXCTRL */ + 0x11, 0x7c, 0x00, 0x68, 0x00, 0x01, /* move.b #0x68,1(%a0) Enable TX */ + 0x11, 0x40, 0x00, 0x03, /* move.b %d0,3(%a0) Print 'T' */ + 0x60, 0xfa /* bra.s loop */ +}; + static const uint8_t kernel_pls3adsp1800[] = { 0xb0, 0x00, 0x84, 0x00, /* imm 0x8400 */ 0x30, 0x60, 0x00, 0x04, /* addik r3,r0,4 */ @@ -117,6 +128,7 @@ static testdef_t tests[] = { { "sparc64", "sun4u", "", "UltraSPARC" }, { "s390x", "s390-ccw-virtio", "", "device" }, { "m68k", "mcf5208evb", "", "TT", sizeof(kernel_mcf5208), kernel_mcf5208 }, + { "m68k", "next-cube", "", "TT", sizeof(bios_nextcube), 0, bios_nextcube }, { "microblaze", "petalogix-s3adsp1800", "", "TT", sizeof(kernel_pls3adsp1800), kernel_pls3adsp1800 }, { "microblazeel", "petalogix-ml605", "", "TT", -- 2.11.4.GIT