ARM: iop32x: merge everything into mach-iop32x/
[muen/linux.git] / arch / arm / mach-iop32x / iq80321.c
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3  * arch/arm/mach-iop32x/iq80321.c
4  *
5  * Board support code for the Intel IQ80321 platform.
6  *
7  * Author: Rory Bolt <rorybolt@pacbell.net>
8  * Copyright (C) 2002 Rory Bolt
9  * Copyright (C) 2004 Intel Corp.
10  */
11
12 #include <linux/mm.h>
13 #include <linux/init.h>
14 #include <linux/kernel.h>
15 #include <linux/pci.h>
16 #include <linux/string.h>
17 #include <linux/serial_core.h>
18 #include <linux/serial_8250.h>
19 #include <linux/mtd/physmap.h>
20 #include <linux/platform_device.h>
21 #include <linux/io.h>
22 #include <linux/gpio/machine.h>
23 #include <asm/irq.h>
24 #include <asm/mach/arch.h>
25 #include <asm/mach/map.h>
26 #include <asm/mach/pci.h>
27 #include <asm/mach/time.h>
28 #include <asm/mach-types.h>
29 #include <asm/page.h>
30 #include <asm/pgtable.h>
31
32 #include "hardware.h"
33 #include "irqs.h"
34 #include "gpio-iop32x.h"
35
36 /*
37  * IQ80321 timer tick configuration.
38  */
39 static void __init iq80321_timer_init(void)
40 {
41         /* 33.333 MHz crystal.  */
42         iop_init_time(200000000);
43 }
44
45
46 /*
47  * IQ80321 I/O.
48  */
49 static struct map_desc iq80321_io_desc[] __initdata = {
50         {       /* on-board devices */
51                 .virtual        = IQ80321_UART,
52                 .pfn            = __phys_to_pfn(IQ80321_UART),
53                 .length         = 0x00100000,
54                 .type           = MT_DEVICE,
55         },
56 };
57
58 void __init iq80321_map_io(void)
59 {
60         iop3xx_map_io();
61         iotable_init(iq80321_io_desc, ARRAY_SIZE(iq80321_io_desc));
62 }
63
64
65 /*
66  * IQ80321 PCI.
67  */
68 static int __init
69 iq80321_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
70 {
71         int irq;
72
73         if ((slot == 2 || slot == 6) && pin == 1) {
74                 /* PCI-X Slot INTA */
75                 irq = IRQ_IOP32X_XINT2;
76         } else if ((slot == 2 || slot == 6) && pin == 2) {
77                 /* PCI-X Slot INTA */
78                 irq = IRQ_IOP32X_XINT3;
79         } else if ((slot == 2 || slot == 6) && pin == 3) {
80                 /* PCI-X Slot INTA */
81                 irq = IRQ_IOP32X_XINT0;
82         } else if ((slot == 2 || slot == 6) && pin == 4) {
83                 /* PCI-X Slot INTA */
84                 irq = IRQ_IOP32X_XINT1;
85         } else if (slot == 4 || slot == 8) {
86                 /* Gig-E */
87                 irq = IRQ_IOP32X_XINT0;
88         } else {
89                 printk(KERN_ERR "iq80321_pci_map_irq() called for unknown "
90                         "device PCI:%d:%d:%d\n", dev->bus->number,
91                         PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn));
92                 irq = -1;
93         }
94
95         return irq;
96 }
97
98 static struct hw_pci iq80321_pci __initdata = {
99         .nr_controllers = 1,
100         .ops            = &iop3xx_ops,
101         .setup          = iop3xx_pci_setup,
102         .preinit        = iop3xx_pci_preinit_cond,
103         .map_irq        = iq80321_pci_map_irq,
104 };
105
106 static int __init iq80321_pci_init(void)
107 {
108         if ((iop3xx_get_init_atu() == IOP3XX_INIT_ATU_ENABLE) &&
109                 machine_is_iq80321())
110                 pci_common_init(&iq80321_pci);
111
112         return 0;
113 }
114
115 subsys_initcall(iq80321_pci_init);
116
117
118 /*
119  * IQ80321 machine initialisation.
120  */
121 static struct physmap_flash_data iq80321_flash_data = {
122         .width          = 1,
123 };
124
125 static struct resource iq80321_flash_resource = {
126         .start          = 0xf0000000,
127         .end            = 0xf07fffff,
128         .flags          = IORESOURCE_MEM,
129 };
130
131 static struct platform_device iq80321_flash_device = {
132         .name           = "physmap-flash",
133         .id             = 0,
134         .dev            = {
135                 .platform_data  = &iq80321_flash_data,
136         },
137         .num_resources  = 1,
138         .resource       = &iq80321_flash_resource,
139 };
140
141 static struct plat_serial8250_port iq80321_serial_port[] = {
142         {
143                 .mapbase        = IQ80321_UART,
144                 .membase        = (char *)IQ80321_UART,
145                 .irq            = IRQ_IOP32X_XINT1,
146                 .flags          = UPF_SKIP_TEST,
147                 .iotype         = UPIO_MEM,
148                 .regshift       = 0,
149                 .uartclk        = 1843200,
150         },
151         { },
152 };
153
154 static struct resource iq80321_uart_resource = {
155         .start          = IQ80321_UART,
156         .end            = IQ80321_UART + 7,
157         .flags          = IORESOURCE_MEM,
158 };
159
160 static struct platform_device iq80321_serial_device = {
161         .name           = "serial8250",
162         .id             = PLAT8250_DEV_PLATFORM,
163         .dev            = {
164                 .platform_data          = iq80321_serial_port,
165         },
166         .num_resources  = 1,
167         .resource       = &iq80321_uart_resource,
168 };
169
170 static void __init iq80321_init_machine(void)
171 {
172         register_iop32x_gpio();
173         gpiod_add_lookup_table(&iop3xx_i2c0_gpio_lookup);
174         gpiod_add_lookup_table(&iop3xx_i2c1_gpio_lookup);
175         platform_device_register(&iop3xx_i2c0_device);
176         platform_device_register(&iop3xx_i2c1_device);
177         platform_device_register(&iq80321_flash_device);
178         platform_device_register(&iq80321_serial_device);
179         platform_device_register(&iop3xx_dma_0_channel);
180         platform_device_register(&iop3xx_dma_1_channel);
181         platform_device_register(&iop3xx_aau_channel);
182 }
183
184 MACHINE_START(IQ80321, "Intel IQ80321")
185         /* Maintainer: Intel Corp. */
186         .atag_offset    = 0x100,
187         .map_io         = iq80321_map_io,
188         .init_irq       = iop32x_init_irq,
189         .init_time      = iq80321_timer_init,
190         .init_machine   = iq80321_init_machine,
191         .restart        = iop3xx_restart,
192 MACHINE_END