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
36static struct flash_platform_data avila_flash_data = {
37	.map_name	= "cfi_probe",
38	.width		= 2,
39};
40
41static struct resource avila_flash_resource = {
42	.flags		= IORESOURCE_MEM,
43};
44
45static 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
55static 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
65static struct platform_device avila_i2c_gpio = {
66	.name		= "i2c-gpio",
67	.id		= 0,
68	.dev	 = {
69		.platform_data	= NULL,
70	},
71};
72
73static 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
86static 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
108static 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
116static 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
131static struct ixp4xx_pata_data avila_pata_data = {
132	.cs0_bits	= 0xbfff0043,
133	.cs1_bits	= 0xbfff0043,
134};
135
136static 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
144static struct platform_device *avila_devices[] __initdata = {
145	&avila_i2c_gpio,
146	&avila_flash,
147	&avila_uart
148};
149
150static 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
175MACHINE_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,
187MACHINE_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
195MACHINE_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,
207MACHINE_END
208#endif
209
210