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ARM: shmobile: Update EMEV2 DTS to include CPU frequency
[mirror_ubuntu-jammy-kernel.git] / arch / arm / mach-shmobile / setup-emev2.c
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1/*
2 * Emma Mobile EV2 processor support
3 *
4 * Copyright (C) 2012 Magnus Damm
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; version 2 of the License.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
18 */
a3153e6c 19#include <linux/clk-provider.h>
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20#include <linux/kernel.h>
21#include <linux/init.h>
3d5de271 22#include <linux/of_platform.h>
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23#include <asm/mach-types.h>
24#include <asm/mach/arch.h>
25#include <asm/mach/map.h>
fd44aa5e 26#include "common.h"
7f627f03 27
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28static struct map_desc emev2_io_desc[] __initdata = {
29#ifdef CONFIG_SMP
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30 /* 2M mapping for SCU + L2 controller */
31 {
32 .virtual = 0xf0000000,
33 .pfn = __phys_to_pfn(0x1e000000),
34 .length = SZ_2M,
35 .type = MT_DEVICE
36 },
37#endif
38};
39
505891ec 40static void __init emev2_map_io(void)
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41{
42 iotable_init(emev2_io_desc, ARRAY_SIZE(emev2_io_desc));
43}
44
505891ec 45static void __init emev2_init_delay(void)
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46{
47 shmobile_setup_delay(533, 1, 3); /* Cortex-A9 @ 533MHz */
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48}
49
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50static void __init emev2_add_standard_devices_dt(void)
51{
a3153e6c 52 of_clk_init(NULL);
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53 of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
54}
55
d24d1780 56static const char *emev2_boards_compat_dt[] __initconst = {
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57 "renesas,emev2",
58 NULL,
59};
60
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61extern struct smp_operations emev2_smp_ops;
62
3d5de271 63DT_MACHINE_START(EMEV2_DT, "Generic Emma Mobile EV2 (Flattened Device Tree)")
a62580e5 64 .smp = smp_ops(emev2_smp_ops),
0ea2b538 65 .map_io = emev2_map_io,
3d5de271 66 .init_early = emev2_init_delay,
a3153e6c 67 .init_machine = emev2_add_standard_devices_dt,
3f348e1c 68 .init_late = shmobile_init_late,
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69 .dt_compat = emev2_boards_compat_dt,
70MACHINE_END