summaryrefslogtreecommitdiffstats
path: root/arch/arm/cpu/armv7/ls102xa/fsl_epu.c
blob: 6212640d1444daae48ae84073695aeddaaae5403 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
/*
 * Copyright 2014 Freescale Semiconductor, Inc.
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */

#include <common.h>
#include <asm/io.h>

#include "fsl_epu.h"

/**
 * fsl_epu_clean - Clear EPU registers
 */
void fsl_epu_clean(void *epu_base)
{
	u32 offset;

	/* follow the exact sequence to clear the registers */
	/* Clear EPACRn */
	for (offset = EPACR0; offset <= EPACR15; offset += EPACR_STRIDE)
		out_be32(epu_base + offset, 0);

	/* Clear EPEVTCRn */
	for (offset = EPEVTCR0; offset <= EPEVTCR9; offset += EPEVTCR_STRIDE)
		out_be32(epu_base + offset, 0);

	/* Clear EPGCR */
	out_be32(epu_base + EPGCR, 0);

	/* Clear EPSMCRn */
	for (offset = EPSMCR0; offset <= EPSMCR15; offset += EPSMCR_STRIDE)
		out_be32(epu_base + offset, 0);

	/* Clear EPCCRn */
	for (offset = EPCCR0; offset <= EPCCR31; offset += EPCCR_STRIDE)
		out_be32(epu_base + offset, 0);

	/* Clear EPCMPRn */
	for (offset = EPCMPR0; offset <= EPCMPR31; offset += EPCMPR_STRIDE)
		out_be32(epu_base + offset, 0);

	/* Clear EPCTRn */
	for (offset = EPCTR0; offset <= EPCTR31; offset += EPCTR_STRIDE)
		out_be32(epu_base + offset, 0);

	/* Clear EPIMCRn */
	for (offset = EPIMCR0; offset <= EPIMCR31; offset += EPIMCR_STRIDE)
		out_be32(epu_base + offset, 0);

	/* Clear EPXTRIGCRn */
	out_be32(epu_base + EPXTRIGCR, 0);

	/* Clear EPECRn */
	for (offset = EPECR0; offset <= EPECR15; offset += EPECR_STRIDE)
		out_be32(epu_base + offset, 0);
}
OpenPOWER on IntegriCloud