d06fbd35c8
The port more or less fully works now, except for actual interrupt driven io and proper atomics. Also hit a floating point exception in the string benchmark.
50 lines
1.2 KiB
C
50 lines
1.2 KiB
C
/*
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* Copyright (c) 2019 Travis Geiselbrecht
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*
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* Use of this source code is governed by a MIT-style
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* license that can be found in the LICENSE file or at
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* https://opensource.org/licenses/MIT
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*/
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#include <lk/debug.h>
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#include <platform.h>
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#include <platform/timer.h>
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#include <arch/vax.h>
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#include "platform_p.h"
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uint32_t vax_cputype;
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uint32_t vax_boardtype;
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void platform_early_init(void) {
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// decode what kind of vax we are so we can make a few platform decisions
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// generally follows logic in netbsd sys/arch/vax/...
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uint32_t sid = mfpr(PR_SID);
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vax_cputype = sid >> 24;
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vax_boardtype = vax_cputype << 24;
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switch (vax_cputype) {
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case 10: // CVAX
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case 11: // RIGEL
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case 18: // MARIAH
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case 19: // NVAX
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case 20: { // SOC
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uint32_t sie = *(uint32_t *)(0x20040004);
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vax_boardtype |= sie >> 24;
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break;
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}
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}
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platform_early_console_init();
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printf("\n");
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printf("VAX: sid %#x\n", sid);
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printf("VAX: cputype %#x\n", vax_cputype);
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printf("VAX: boardtype %#x\n", vax_boardtype);
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platform_early_timer_init();
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}
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void platform_init(void) {
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platform_console_init();
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}
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