1// SPDX-License-Identifier: GPL-2.0-only
 2/*
 3 * arch/arm/mach-spear3xx/spear3xx.c
 4 *
 5 * SPEAr3XX machines common source file
 6 *
 7 * Copyright (C) 2009-2012 ST Microelectronics
 8 * Viresh Kumar <vireshk@kernel.org>
 9 */
10
11#define pr_fmt(fmt) "SPEAr3xx: " fmt
12
13#include <linux/amba/pl022.h>
14#include <linux/amba/pl080.h>
15#include <linux/clk.h>
16#include <linux/clk/spear.h>
17#include <linux/io.h>
18#include <asm/mach/map.h>
19#include "pl080.h"
20#include "generic.h"
21#include "spear.h"
22#include "misc_regs.h"
23
24/* ssp device registration */
25struct pl022_ssp_controller pl022_plat_data = {
26	.bus_id = 0,
27	.enable_dma = 1,
28	.dma_filter = pl08x_filter_id,
29	.dma_tx_param = "ssp0_tx",
30	.dma_rx_param = "ssp0_rx",
31};
32
33/* dmac device registration */
34struct pl08x_platform_data pl080_plat_data = {
35	.memcpy_burst_size = PL08X_BURST_SZ_16,
36	.memcpy_bus_width = PL08X_BUS_WIDTH_32_BITS,
37	.memcpy_prot_buff = true,
38	.memcpy_prot_cache = true,
39	.lli_buses = PL08X_AHB1,
40	.mem_buses = PL08X_AHB1,
41	.get_xfer_signal = pl080_get_signal,
42	.put_xfer_signal = pl080_put_signal,
43};
44
45/*
46 * Following will create 16MB static virtual/physical mappings
47 * PHYSICAL		VIRTUAL
48 * 0xD0000000		0xFD000000
49 * 0xFC000000		0xFC000000
50 */
51struct map_desc spear3xx_io_desc[] __initdata = {
52	{
53		.virtual	= (unsigned long)VA_SPEAR_ICM1_2_BASE,
54		.pfn		= __phys_to_pfn(SPEAR_ICM1_2_BASE),
55		.length		= SZ_16M,
56		.type		= MT_DEVICE
57	}, {
58		.virtual	= (unsigned long)VA_SPEAR_ICM3_SMI_CTRL_BASE,
59		.pfn		= __phys_to_pfn(SPEAR_ICM3_SMI_CTRL_BASE),
60		.length		= SZ_16M,
61		.type		= MT_DEVICE
62	},
63};
64
65/* This will create static memory mapping for selected devices */
66void __init spear3xx_map_io(void)
67{
68	iotable_init(spear3xx_io_desc, ARRAY_SIZE(spear3xx_io_desc));
69}
70
71void __init spear3xx_timer_init(void)
72{
73	char pclk_name[] = "pll3_clk";
74	struct clk *gpt_clk, *pclk;
75
76	spear3xx_clk_init(MISC_BASE, VA_SPEAR320_SOC_CONFIG_BASE);
77
78	/* get the system timer clock */
79	gpt_clk = clk_get_sys("gpt0", NULL);
80	if (IS_ERR(gpt_clk)) {
81		pr_err("%s:couldn't get clk for gpt\n", __func__);
82		BUG();
83	}
84
85	/* get the suitable parent clock for timer*/
86	pclk = clk_get(NULL, pclk_name);
87	if (IS_ERR(pclk)) {
88		pr_err("%s:couldn't get %s as parent for gpt\n",
89				__func__, pclk_name);
90		BUG();
91	}
92
93	clk_set_parent(gpt_clk, pclk);
94	clk_put(gpt_clk);
95	clk_put(pclk);
96
97	spear_setup_of_timer();
98}

 1// SPDX-License-Identifier: GPL-2.0-only
 2/*
 3 * arch/arm/mach-spear3xx/spear3xx.c
 4 *
 5 * SPEAr3XX machines common source file
 6 *
 7 * Copyright (C) 2009-2012 ST Microelectronics
 8 * Viresh Kumar <vireshk@kernel.org>
 9 */
10
11#define pr_fmt(fmt) "SPEAr3xx: " fmt
12
13#include <linux/amba/pl022.h>
14#include <linux/amba/pl080.h>
15#include <linux/clk.h>
16#include <linux/clk/spear.h>
17#include <linux/io.h>
18#include <asm/mach/map.h>
19#include "pl080.h"
20#include "generic.h"
21#include "spear.h"
22#include "misc_regs.h"
23
24/* ssp device registration */
25struct pl022_ssp_controller pl022_plat_data = {
26	.bus_id = 0,
27	.enable_dma = 1,
28	.dma_filter = pl08x_filter_id,
29	.dma_tx_param = "ssp0_tx",
30	.dma_rx_param = "ssp0_rx",
31};
32
33/* dmac device registration */
34struct pl08x_platform_data pl080_plat_data = {
35	.memcpy_burst_size = PL08X_BURST_SZ_16,
36	.memcpy_bus_width = PL08X_BUS_WIDTH_32_BITS,
37	.memcpy_prot_buff = true,
38	.memcpy_prot_cache = true,
39	.lli_buses = PL08X_AHB1,
40	.mem_buses = PL08X_AHB1,
41	.get_xfer_signal = pl080_get_signal,
42	.put_xfer_signal = pl080_put_signal,
43};
44
45/*
46 * Following will create 16MB static virtual/physical mappings
47 * PHYSICAL		VIRTUAL
48 * 0xD0000000		0xFD000000
49 * 0xFC000000		0xFC000000
50 */
51struct map_desc spear3xx_io_desc[] __initdata = {
52	{
53		.virtual	= (unsigned long)VA_SPEAR_ICM1_2_BASE,
54		.pfn		= __phys_to_pfn(SPEAR_ICM1_2_BASE),
55		.length		= SZ_16M,
56		.type		= MT_DEVICE
57	}, {
58		.virtual	= (unsigned long)VA_SPEAR_ICM3_SMI_CTRL_BASE,
59		.pfn		= __phys_to_pfn(SPEAR_ICM3_SMI_CTRL_BASE),
60		.length		= SZ_16M,
61		.type		= MT_DEVICE
62	},
63};
64
65/* This will create static memory mapping for selected devices */
66void __init spear3xx_map_io(void)
67{
68	iotable_init(spear3xx_io_desc, ARRAY_SIZE(spear3xx_io_desc));
69}
70
71void __init spear3xx_timer_init(void)
72{
73	char pclk_name[] = "pll3_clk";
74	struct clk *gpt_clk, *pclk;
75
76	spear3xx_clk_init(MISC_BASE, VA_SPEAR320_SOC_CONFIG_BASE);
77
78	/* get the system timer clock */
79	gpt_clk = clk_get_sys("gpt0", NULL);
80	if (IS_ERR(gpt_clk)) {
81		pr_err("%s:couldn't get clk for gpt\n", __func__);
82		BUG();
83	}
84
85	/* get the suitable parent clock for timer*/
86	pclk = clk_get(NULL, pclk_name);
87	if (IS_ERR(pclk)) {
88		pr_err("%s:couldn't get %s as parent for gpt\n",
89				__func__, pclk_name);
90		BUG();
91	}
92
93	clk_set_parent(gpt_clk, pclk);
94	clk_put(gpt_clk);
95	clk_put(pclk);
96
97	spear_setup_of_timer();
98}