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1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * Copyright STMicroelectronics, 2007.
4 */
5
6#include <linux/types.h>
7#include <linux/init.h>
8#include <linux/io.h>
9
10#include <asm/mach/arch.h>
11#include <asm/mach/map.h>
12#include <asm/mach-types.h>
13
14/*
15 * These are the only hard-coded address offsets we still have to use.
16 */
17#define NOMADIK_FSMC_BASE 0x10100000 /* FSMC registers */
18#define NOMADIK_SDRAMC_BASE 0x10110000 /* SDRAM Controller */
19#define NOMADIK_CLCDC_BASE 0x10120000 /* CLCD Controller */
20#define NOMADIK_MDIF_BASE 0x10120000 /* MDIF */
21#define NOMADIK_DMA0_BASE 0x10130000 /* DMA0 Controller */
22#define NOMADIK_IC_BASE 0x10140000 /* Vectored Irq Controller */
23#define NOMADIK_DMA1_BASE 0x10150000 /* DMA1 Controller */
24#define NOMADIK_USB_BASE 0x10170000 /* USB-OTG conf reg base */
25#define NOMADIK_CRYP_BASE 0x10180000 /* Crypto processor */
26#define NOMADIK_SHA1_BASE 0x10190000 /* SHA-1 Processor */
27#define NOMADIK_XTI_BASE 0x101A0000 /* XTI */
28#define NOMADIK_RNG_BASE 0x101B0000 /* Random number generator */
29#define NOMADIK_SRC_BASE 0x101E0000 /* SRC base */
30#define NOMADIK_WDOG_BASE 0x101E1000 /* Watchdog */
31#define NOMADIK_MTU0_BASE 0x101E2000 /* Multiple Timer 0 */
32#define NOMADIK_MTU1_BASE 0x101E3000 /* Multiple Timer 1 */
33#define NOMADIK_GPIO0_BASE 0x101E4000 /* GPIO0 */
34#define NOMADIK_GPIO1_BASE 0x101E5000 /* GPIO1 */
35#define NOMADIK_GPIO2_BASE 0x101E6000 /* GPIO2 */
36#define NOMADIK_GPIO3_BASE 0x101E7000 /* GPIO3 */
37#define NOMADIK_RTC_BASE 0x101E8000 /* Real Time Clock base */
38#define NOMADIK_PMU_BASE 0x101E9000 /* Power Management Unit */
39#define NOMADIK_OWM_BASE 0x101EA000 /* One wire master */
40#define NOMADIK_SCR_BASE 0x101EF000 /* Secure Control registers */
41#define NOMADIK_MSP2_BASE 0x101F0000 /* MSP 2 interface */
42#define NOMADIK_MSP1_BASE 0x101F1000 /* MSP 1 interface */
43#define NOMADIK_UART2_BASE 0x101F2000 /* UART 2 interface */
44#define NOMADIK_SSIRx_BASE 0x101F3000 /* SSI 8-ch rx interface */
45#define NOMADIK_SSITx_BASE 0x101F4000 /* SSI 8-ch tx interface */
46#define NOMADIK_MSHC_BASE 0x101F5000 /* Memory Stick(Pro) Host */
47#define NOMADIK_SDI_BASE 0x101F6000 /* SD-card/MM-Card */
48#define NOMADIK_I2C1_BASE 0x101F7000 /* I2C1 interface */
49#define NOMADIK_I2C0_BASE 0x101F8000 /* I2C0 interface */
50#define NOMADIK_MSP0_BASE 0x101F9000 /* MSP 0 interface */
51#define NOMADIK_FIRDA_BASE 0x101FA000 /* FIrDA interface */
52#define NOMADIK_UART1_BASE 0x101FB000 /* UART 1 interface */
53#define NOMADIK_SSP_BASE 0x101FC000 /* SSP interface */
54#define NOMADIK_UART0_BASE 0x101FD000 /* UART 0 interface */
55#define NOMADIK_SGA_BASE 0x101FE000 /* SGA interface */
56#define NOMADIK_L2CC_BASE 0x10210000 /* L2 Cache controller */
57#define NOMADIK_UART1_VBASE 0xF01FB000
58
59/* This is needed for LL-debug/earlyprintk/debug-macro.S */
60static struct map_desc cpu8815_io_desc[] __initdata = {
61 {
62 .virtual = NOMADIK_UART1_VBASE,
63 .pfn = __phys_to_pfn(NOMADIK_UART1_BASE),
64 .length = SZ_4K,
65 .type = MT_DEVICE,
66 },
67};
68
69static void __init cpu8815_map_io(void)
70{
71 iotable_init(cpu8815_io_desc, ARRAY_SIZE(cpu8815_io_desc));
72}
73
74static void cpu8815_restart(enum reboot_mode mode, const char *cmd)
75{
76 void __iomem *srcbase = ioremap(NOMADIK_SRC_BASE, SZ_4K);
77
78 /* FIXME: use egpio when implemented */
79
80 /* Write anything to Reset status register */
81 writel(1, srcbase + 0x18);
82}
83
84static const char * cpu8815_board_compat[] = {
85 "st,nomadik-nhk-15",
86 "calaosystems,usb-s8815",
87 NULL,
88};
89
90DT_MACHINE_START(NOMADIK_DT, "Nomadik STn8815")
91 .l2c_aux_val = 0,
92 .l2c_aux_mask = ~0,
93 .map_io = cpu8815_map_io,
94 .restart = cpu8815_restart,
95 .dt_compat = cpu8815_board_compat,
96MACHINE_END
1/*
2 * Copyright STMicroelectronics, 2007.
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17 */
18
19#include <linux/types.h>
20#include <linux/init.h>
21#include <linux/device.h>
22#include <linux/amba/bus.h>
23#include <linux/platform_device.h>
24#include <linux/gpio.h>
25
26#include <mach/hardware.h>
27#include <mach/irqs.h>
28#include <asm/mach/map.h>
29#include <asm/hardware/vic.h>
30
31#include <asm/cacheflush.h>
32#include <asm/hardware/cache-l2x0.h>
33
34#include "clock.h"
35
36#define __MEM_4K_RESOURCE(x) \
37 .res = {.start = (x), .end = (x) + SZ_4K - 1, .flags = IORESOURCE_MEM}
38
39/* The 8815 has 4 GPIO blocks, let's register them immediately */
40
41#define GPIO_RESOURCE(block) \
42 { \
43 .start = NOMADIK_GPIO##block##_BASE, \
44 .end = NOMADIK_GPIO##block##_BASE + SZ_4K - 1, \
45 .flags = IORESOURCE_MEM, \
46 }, \
47 { \
48 .start = IRQ_GPIO##block, \
49 .end = IRQ_GPIO##block, \
50 .flags = IORESOURCE_IRQ, \
51 }
52
53#define GPIO_DEVICE(block) \
54 { \
55 .name = "gpio", \
56 .id = block, \
57 .num_resources = 2, \
58 .resource = &cpu8815_gpio_resources[block * 2], \
59 .dev = { \
60 .platform_data = &cpu8815_gpio[block], \
61 }, \
62 }
63
64static struct nmk_gpio_platform_data cpu8815_gpio[] = {
65 {
66 .name = "GPIO-0-31",
67 .first_gpio = 0,
68 .first_irq = NOMADIK_GPIO_TO_IRQ(0),
69 }, {
70 .name = "GPIO-32-63",
71 .first_gpio = 32,
72 .first_irq = NOMADIK_GPIO_TO_IRQ(32),
73 }, {
74 .name = "GPIO-64-95",
75 .first_gpio = 64,
76 .first_irq = NOMADIK_GPIO_TO_IRQ(64),
77 }, {
78 .name = "GPIO-96-127", /* 124..127 not routed to pin */
79 .first_gpio = 96,
80 .first_irq = NOMADIK_GPIO_TO_IRQ(96),
81 }
82};
83
84static struct resource cpu8815_gpio_resources[] = {
85 GPIO_RESOURCE(0),
86 GPIO_RESOURCE(1),
87 GPIO_RESOURCE(2),
88 GPIO_RESOURCE(3),
89};
90
91static struct platform_device cpu8815_platform_gpio[] = {
92 GPIO_DEVICE(0),
93 GPIO_DEVICE(1),
94 GPIO_DEVICE(2),
95 GPIO_DEVICE(3),
96};
97
98static struct amba_device cpu8815_amba_rng = {
99 .dev = {
100 .init_name = "rng",
101 },
102 __MEM_4K_RESOURCE(NOMADIK_RNG_BASE),
103};
104
105static struct platform_device *platform_devs[] __initdata = {
106 cpu8815_platform_gpio + 0,
107 cpu8815_platform_gpio + 1,
108 cpu8815_platform_gpio + 2,
109 cpu8815_platform_gpio + 3,
110};
111
112static struct amba_device *amba_devs[] __initdata = {
113 &cpu8815_amba_rng
114};
115
116static int __init cpu8815_init(void)
117{
118 int i;
119
120 platform_add_devices(platform_devs, ARRAY_SIZE(platform_devs));
121 for (i = 0; i < ARRAY_SIZE(amba_devs); i++)
122 amba_device_register(amba_devs[i], &iomem_resource);
123 return 0;
124}
125arch_initcall(cpu8815_init);
126
127/* All SoC devices live in the same area (see hardware.h) */
128static struct map_desc nomadik_io_desc[] __initdata = {
129 {
130 .virtual = NOMADIK_IO_VIRTUAL,
131 .pfn = __phys_to_pfn(NOMADIK_IO_PHYSICAL),
132 .length = NOMADIK_IO_SIZE,
133 .type = MT_DEVICE,
134 }
135 /* static ram and secured ram may be added later */
136};
137
138void __init cpu8815_map_io(void)
139{
140 iotable_init(nomadik_io_desc, ARRAY_SIZE(nomadik_io_desc));
141}
142
143void __init cpu8815_init_irq(void)
144{
145 /* This modified VIC cell has two register blocks, at 0 and 0x20 */
146 vic_init(io_p2v(NOMADIK_IC_BASE + 0x00), IRQ_VIC_START + 0, ~0, 0);
147 vic_init(io_p2v(NOMADIK_IC_BASE + 0x20), IRQ_VIC_START + 32, ~0, 0);
148
149 /*
150 * Init clocks here so that they are available for system timer
151 * initialization.
152 */
153 clk_init();
154}
155
156/*
157 * This function is called from the board init ("init_machine").
158 */
159 void __init cpu8815_platform_init(void)
160{
161#ifdef CONFIG_CACHE_L2X0
162 /* At full speed latency must be >=2, so 0x249 in low bits */
163 l2x0_init(io_p2v(NOMADIK_L2CC_BASE), 0x00730249, 0xfe000fff);
164#endif
165 return;
166}