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Add helper code for PVR (Processor Version Register) data handling. It will be used by the UCLASS_CPU driver to populate cpuinfo fields at runtime. Signed-off-by: Ovidiu Panait <ovpanait@gmail.com> Link: https://lore.kernel.org/r/20220531181435.3473549-13-ovpanait@gmail.com Signed-off-by: Michal Simek <michal.simek@amd.com>
42 lines
746 B
C
42 lines
746 B
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2022, Ovidiu Panait <ovpanait@gmail.com>
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*/
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#include <common.h>
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#include <asm/asm.h>
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#include <asm/pvr.h>
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int microblaze_cpu_has_pvr_full(void)
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{
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u32 msr, pvr0;
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MFS(msr, rmsr);
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if (!(msr & PVR_MSR_BIT))
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return 0;
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get_pvr(0, pvr0);
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debug("%s: pvr0 is 0x%08x\n", __func__, pvr0);
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if (!(pvr0 & PVR0_PVR_FULL_MASK))
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return 0;
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return 1;
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}
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void microblaze_get_all_pvrs(u32 pvr[PVR_FULL_COUNT])
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{
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get_pvr(0, pvr[0]);
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get_pvr(1, pvr[1]);
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get_pvr(2, pvr[2]);
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get_pvr(3, pvr[3]);
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get_pvr(4, pvr[4]);
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get_pvr(5, pvr[5]);
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get_pvr(6, pvr[6]);
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get_pvr(7, pvr[7]);
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get_pvr(8, pvr[8]);
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get_pvr(9, pvr[9]);
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get_pvr(10, pvr[10]);
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get_pvr(11, pvr[11]);
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get_pvr(12, pvr[12]);
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}
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