arc: implement slave cores kick-start for Linux kernel
[people/ms/u-boot.git] / board / synopsys / axs101 / axs101.c
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1/*
2 * Copyright (C) 2013-2014 Synopsys, Inc. All rights reserved.
3 *
4 * SPDX-License-Identifier: GPL-2.0+
5 */
6
7#include <common.h>
8#include <dwmmc.h>
9#include <malloc.h>
10#include <netdev.h>
11#include <phy.h>
0241c313 12#include "axs10x.h"
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13
14DECLARE_GLOBAL_DATA_PTR;
15
16int board_mmc_init(bd_t *bis)
17{
18 struct dwmci_host *host = NULL;
19
20 host = malloc(sizeof(struct dwmci_host));
21 if (!host) {
22 printf("dwmci_host malloc fail!\n");
23 return 1;
24 }
25
26 memset(host, 0, sizeof(struct dwmci_host));
27 host->name = "Synopsys Mobile storage";
28 host->ioaddr = (void *)ARC_DWMMC_BASE;
29 host->buswidth = 4;
30 host->dev_index = 0;
d5717e89 31 host->bus_hz = 50000000;
a7069ddf 32
d5717e89 33 add_dwmci(host, host->bus_hz, 400000);
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34
35 return 0;
36}
37
38int board_eth_init(bd_t *bis)
39{
f39b2a6e 40 if (designware_initialize(ARC_DWGMAC_BASE,
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41 PHY_INTERFACE_MODE_RGMII) >= 0)
42 return 1;
43
44 return 0;
45}
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46
47
48#define AXS_MB_CREG 0xE0011000
49
50int board_early_init_f(void)
51{
52 if (readl((void __iomem *)AXS_MB_CREG + 0x234) & (1 << 28))
53 gd->board_type = AXS_MB_V3;
54 else
55 gd->board_type = AXS_MB_V2;
56
57 return 0;
58}
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59
60#ifdef CONFIG_ISA_ARCV2
61#define RESET_VECTOR_ADDR 0x0
62
63void smp_set_core_boot_addr(unsigned long addr, int corenr)
64{
65 /* All cores have reset vector pointing to 0 */
66 writel(addr, (void __iomem *)RESET_VECTOR_ADDR);
67
68 /* Make sure other cores see written value in memory */
69 flush_dcache_range(RESET_VECTOR_ADDR, RESET_VECTOR_ADDR + sizeof(int));
70}
71
72void smp_kick_all_cpus(void)
73{
74/* CPU start CREG */
75#define AXC003_CREG_CPU_START 0xF0001400
76
77/* Bits positions in CPU start CREG */
78#define BITS_START 0
79#define BITS_POLARITY 8
80#define BITS_CORE_SEL 9
81#define BITS_MULTICORE 12
82
83#define CMD (1 << BITS_MULTICORE) | (1 << BITS_CORE_SEL) | \
84 (1 << BITS_POLARITY) | (1 << BITS_START)
85
86 writel(CMD, (void __iomem *)AXC003_CREG_CPU_START);
87}
88#endif