diff options
| author | Helge Deller <deller@gmx.de> | 2022-05-28 11:26:29 +0200 |
|---|---|---|
| committer | Helge Deller <deller@gmx.de> | 2022-05-28 12:25:42 +0200 |
| commit | 5079892df5f113c7f2b77f53bf7663f6c7bc6be9 (patch) | |
| tree | 39dca4e048a19c82f4985bd77e8eb597fb43ede0 /hw/hppa | |
| parent | 4de43540644962687fcd2df2a2454c1e46c2f92a (diff) | |
hppa: Fix serial port assignments and pass-through
This fixes the serial ports in the emulation to behave as on original
hardware.
On the real hardware, the LASI UART is serial port #0 and the DINO UART
is serial port #1. This is fixed in SeaBIOS-hppa firmware v6, which is
why at least this firmware version is required.
The serial port addresses in hppa/hppa_hardware.h have to be swapped,
and when creating the virtual serial ports the correct port addresses
are used.
This patch now for example allows to specify on the qemu command line:
-serial mon:stdio -serial /dev/ttyS4
to use the emulated ttyS0 in the guest for console output, and pass
ttyS4 from the host to ttyS1 in the guest.
Signed-off-by: Helge Deller <deller@gmx.de>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Diffstat (limited to 'hw/hppa')
| -rw-r--r-- | hw/hppa/hppa_hardware.h | 4 | ||||
| -rw-r--r-- | hw/hppa/machine.c | 22 |
2 files changed, 10 insertions, 16 deletions
diff --git a/hw/hppa/hppa_hardware.h b/hw/hppa/hppa_hardware.h index 3f7627b98f..a5ac3dd0fd 100644 --- a/hw/hppa/hppa_hardware.h +++ b/hw/hppa/hppa_hardware.h @@ -41,8 +41,8 @@ #define FW_CFG_IO_BASE 0xfffa0000 -#define PORT_SERIAL1 (DINO_UART_HPA + 0x800) -#define PORT_SERIAL2 (LASI_UART_HPA + 0x800) +#define PORT_SERIAL1 (LASI_UART_HPA + 0x800) +#define PORT_SERIAL2 (DINO_UART_HPA + 0x800) #define HPPA_MAX_CPUS 16 /* max. number of SMP CPUs */ #define CPU_CLOCK_MHZ 250 /* emulate a 250 MHz CPU */ diff --git a/hw/hppa/machine.c b/hw/hppa/machine.c index d1e174b1f4..63b9dd2396 100644 --- a/hw/hppa/machine.c +++ b/hw/hppa/machine.c @@ -32,7 +32,7 @@ #define MAX_IDE_BUS 2 -#define MIN_SEABIOS_HPPA_VERSION 1 /* require at least this fw version */ +#define MIN_SEABIOS_HPPA_VERSION 6 /* require at least this fw version */ #define HPA_POWER_BUTTON (FIRMWARE_END - 0x10) @@ -236,20 +236,14 @@ static void machine_hppa_init(MachineState *machine) /* Realtime clock, used by firmware for PDC_TOD call. */ mc146818_rtc_init(isa_bus, 2000, NULL); - /* Serial code setup. */ - if (serial_hd(0)) { - uint32_t addr = DINO_UART_HPA + 0x800; - serial_mm_init(addr_space, addr, 0, - qdev_get_gpio_in(dino_dev, DINO_IRQ_RS232INT), - 115200, serial_hd(0), DEVICE_BIG_ENDIAN); - } + /* Serial ports: Lasi and Dino use a 7.272727 MHz clock. */ + serial_mm_init(addr_space, LASI_UART_HPA + 0x800, 0, + qdev_get_gpio_in(lasi_dev, LASI_IRQ_UART_HPA), 7272727 / 16, + serial_hd(0), DEVICE_BIG_ENDIAN); - if (serial_hd(1)) { - /* Serial port */ - serial_mm_init(addr_space, LASI_UART_HPA + 0x800, 0, - qdev_get_gpio_in(lasi_dev, LASI_IRQ_UART_HPA), 8000000 / 16, - serial_hd(1), DEVICE_BIG_ENDIAN); - } + serial_mm_init(addr_space, DINO_UART_HPA + 0x800, 0, + qdev_get_gpio_in(dino_dev, DINO_IRQ_RS232INT), 7272727 / 16, + serial_hd(1), DEVICE_BIG_ENDIAN); /* Parallel port */ parallel_mm_init(addr_space, LASI_LPT_HPA + 0x800, 0, |