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hw/m68k/q800: move PROM and checksum calculation from dp8393x device to board

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This is in preparation for each board to have its own separate bit storage
format and checksum for storing the MAC address.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Tested-by: Finn Thain <fthain@linux-m68k.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20210625065401.30170-5-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
This commit is contained in:
Mark Cave-Ayland 2021-06-25 07:53:55 +01:00 committed by Philippe Mathieu-Daudé
parent 5d53baf3f5
commit 408c57331c
1 changed files with 22 additions and 2 deletions
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24
hw/m68k/q800.c
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@ -70,6 +70,8 @@
#define NUBUS_SUPER_SLOT_BASE 0x60000000
#define NUBUS_SLOT_BASE 0xf0000000
#define SONIC_PROM_SIZE 0x1000
/*
* the video base, whereas it a Nubus address,
* is needed by the kernel to have early display and
@ -211,8 +213,10 @@ static void q800_init(MachineState *machine)
int32_t initrd_size;
MemoryRegion *rom;
MemoryRegion *io;
MemoryRegion *dp8393x_prom = g_new(MemoryRegion, 1);
uint8_t *prom;
const int io_slice_nb = (IO_SIZE / IO_SLICE) - 1;
int i;
int i, checksum;
ram_addr_t ram_size = machine->ram_size;
const char *kernel_filename = machine->kernel_filename;
const char *initrd_filename = machine->initrd_filename;
@ -319,9 +323,25 @@ static void q800_init(MachineState *machine)
sysbus = SYS_BUS_DEVICE(dev);
sysbus_realize_and_unref(sysbus, &error_fatal);
sysbus_mmio_map(sysbus, 0, SONIC_BASE);
sysbus_mmio_map(sysbus, 1, SONIC_PROM_BASE);
sysbus_connect_irq(sysbus, 0, qdev_get_gpio_in(glue, 2));
memory_region_init_rom(dp8393x_prom, NULL, "dp8393x-q800.prom",
SONIC_PROM_SIZE, &error_fatal);
memory_region_add_subregion(get_system_memory(), SONIC_PROM_BASE,
dp8393x_prom);
/* Add MAC address with valid checksum to PROM */
prom = memory_region_get_ram_ptr(dp8393x_prom);
checksum = 0;
for (i = 0; i < 6; i++) {
prom[i] = nd_table[0].macaddr.a[i];
checksum += prom[i];
if (checksum > 0xff) {
checksum = (checksum + 1) & 0xff;
}
}
prom[7] = 0xff - checksum;
/* SCC */
dev = qdev_new(TYPE_ESCC);