Merge tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
[sfrench/cifs-2.6.git] / arch / arm / mach-ixp4xx / avila-setup.c
1 // SPDX-License-Identifier: GPL-2.0
2 /*
3  * arch/arm/mach-ixp4xx/avila-setup.c
4  *
5  * Gateworks Avila board-setup
6  *
7  * Author: Michael-Luke Jones <mlj28@cam.ac.uk>
8  *
9  * Based on ixdp-setup.c
10  * Copyright (C) 2003-2005 MontaVista Software, Inc.
11  *
12  * Author: Deepak Saxena <dsaxena@plexity.net>
13  */
14
15 #include <linux/kernel.h>
16 #include <linux/init.h>
17 #include <linux/device.h>
18 #include <linux/serial.h>
19 #include <linux/tty.h>
20 #include <linux/serial_8250.h>
21 #include <linux/gpio/machine.h>
22 #include <asm/types.h>
23 #include <asm/setup.h>
24 #include <asm/memory.h>
25 #include <mach/hardware.h>
26 #include <asm/mach-types.h>
27 #include <asm/irq.h>
28 #include <asm/mach/arch.h>
29 #include <asm/mach/flash.h>
30
31 #include "irqs.h"
32
33 #define AVILA_SDA_PIN   7
34 #define AVILA_SCL_PIN   6
35
36 static struct flash_platform_data avila_flash_data = {
37         .map_name       = "cfi_probe",
38         .width          = 2,
39 };
40
41 static struct resource avila_flash_resource = {
42         .flags          = IORESOURCE_MEM,
43 };
44
45 static struct platform_device avila_flash = {
46         .name           = "IXP4XX-Flash",
47         .id             = 0,
48         .dev            = {
49                 .platform_data = &avila_flash_data,
50         },
51         .num_resources  = 1,
52         .resource       = &avila_flash_resource,
53 };
54
55 static struct gpiod_lookup_table avila_i2c_gpiod_table = {
56         .dev_id         = "i2c-gpio.0",
57         .table          = {
58                 GPIO_LOOKUP_IDX("IXP4XX_GPIO_CHIP", AVILA_SDA_PIN,
59                                 NULL, 0, GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
60                 GPIO_LOOKUP_IDX("IXP4XX_GPIO_CHIP", AVILA_SCL_PIN,
61                                 NULL, 1, GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
62         },
63 };
64
65 static struct platform_device avila_i2c_gpio = {
66         .name           = "i2c-gpio",
67         .id             = 0,
68         .dev     = {
69                 .platform_data  = NULL,
70         },
71 };
72
73 static struct resource avila_uart_resources[] = {
74         {
75                 .start          = IXP4XX_UART1_BASE_PHYS,
76                 .end            = IXP4XX_UART1_BASE_PHYS + 0x0fff,
77                 .flags          = IORESOURCE_MEM
78         },
79         {
80                 .start          = IXP4XX_UART2_BASE_PHYS,
81                 .end            = IXP4XX_UART2_BASE_PHYS + 0x0fff,
82                 .flags          = IORESOURCE_MEM
83         }
84 };
85
86 static struct plat_serial8250_port avila_uart_data[] = {
87         {
88                 .mapbase        = IXP4XX_UART1_BASE_PHYS,
89                 .membase        = (char *)IXP4XX_UART1_BASE_VIRT + REG_OFFSET,
90                 .irq            = IRQ_IXP4XX_UART1,
91                 .flags          = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
92                 .iotype         = UPIO_MEM,
93                 .regshift       = 2,
94                 .uartclk        = IXP4XX_UART_XTAL,
95         },
96         {
97                 .mapbase        = IXP4XX_UART2_BASE_PHYS,
98                 .membase        = (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET,
99                 .irq            = IRQ_IXP4XX_UART2,
100                 .flags          = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
101                 .iotype         = UPIO_MEM,
102                 .regshift       = 2,
103                 .uartclk        = IXP4XX_UART_XTAL,
104         },
105         { },
106 };
107
108 static struct platform_device avila_uart = {
109         .name                   = "serial8250",
110         .id                     = PLAT8250_DEV_PLATFORM,
111         .dev.platform_data      = avila_uart_data,
112         .num_resources          = 2,
113         .resource               = avila_uart_resources
114 };
115
116 static struct resource avila_pata_resources[] = {
117         {
118                 .flags  = IORESOURCE_MEM
119         },
120         {
121                 .flags  = IORESOURCE_MEM,
122         },
123         {
124                 .name   = "intrq",
125                 .start  = IRQ_IXP4XX_GPIO12,
126                 .end    = IRQ_IXP4XX_GPIO12,
127                 .flags  = IORESOURCE_IRQ,
128         },
129 };
130
131 static struct ixp4xx_pata_data avila_pata_data = {
132         .cs0_bits       = 0xbfff0043,
133         .cs1_bits       = 0xbfff0043,
134 };
135
136 static struct platform_device avila_pata = {
137         .name                   = "pata_ixp4xx_cf",
138         .id                     = 0,
139         .dev.platform_data      = &avila_pata_data,
140         .num_resources          = ARRAY_SIZE(avila_pata_resources),
141         .resource               = avila_pata_resources,
142 };
143
144 static struct platform_device *avila_devices[] __initdata = {
145         &avila_i2c_gpio,
146         &avila_flash,
147         &avila_uart
148 };
149
150 static void __init avila_init(void)
151 {
152         ixp4xx_sys_init();
153
154         avila_flash_resource.start = IXP4XX_EXP_BUS_BASE(0);
155         avila_flash_resource.end =
156                 IXP4XX_EXP_BUS_BASE(0) + ixp4xx_exp_bus_size - 1;
157
158         gpiod_add_lookup_table(&avila_i2c_gpiod_table);
159
160         platform_add_devices(avila_devices, ARRAY_SIZE(avila_devices));
161
162         avila_pata_resources[0].start = IXP4XX_EXP_BUS_BASE(1);
163         avila_pata_resources[0].end = IXP4XX_EXP_BUS_END(1);
164
165         avila_pata_resources[1].start = IXP4XX_EXP_BUS_BASE(2);
166         avila_pata_resources[1].end = IXP4XX_EXP_BUS_END(2);
167
168         avila_pata_data.cs0_cfg = IXP4XX_EXP_CS1;
169         avila_pata_data.cs1_cfg = IXP4XX_EXP_CS2;
170
171         platform_device_register(&avila_pata);
172
173 }
174
175 MACHINE_START(AVILA, "Gateworks Avila Network Platform")
176         /* Maintainer: Deepak Saxena <dsaxena@plexity.net> */
177         .map_io         = ixp4xx_map_io,
178         .init_early     = ixp4xx_init_early,
179         .init_irq       = ixp4xx_init_irq,
180         .init_time      = ixp4xx_timer_init,
181         .atag_offset    = 0x100,
182         .init_machine   = avila_init,
183 #if defined(CONFIG_PCI)
184         .dma_zone_size  = SZ_64M,
185 #endif
186         .restart        = ixp4xx_restart,
187 MACHINE_END
188
189  /*
190   * Loft is functionally equivalent to Avila except that it has a
191   * different number for the maximum PCI devices.  The MACHINE
192   * structure below is identical to Avila except for the comment.
193   */
194 #ifdef CONFIG_MACH_LOFT
195 MACHINE_START(LOFT, "Giant Shoulder Inc Loft board")
196         /* Maintainer: Tom Billman <kernel@giantshoulderinc.com> */
197         .map_io         = ixp4xx_map_io,
198         .init_early     = ixp4xx_init_early,
199         .init_irq       = ixp4xx_init_irq,
200         .init_time      = ixp4xx_timer_init,
201         .atag_offset    = 0x100,
202         .init_machine   = avila_init,
203 #if defined(CONFIG_PCI)
204         .dma_zone_size  = SZ_64M,
205 #endif
206         .restart        = ixp4xx_restart,
207 MACHINE_END
208 #endif
209