1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * arch/arm/mach-ixp4xx/coyote-setup.c
4 *
5 * Board setup for ADI Engineering and IXDGP425 boards
6 *
7 * Copyright (C) 2003-2005 MontaVista Software, Inc.
8 *
9 * Author: Deepak Saxena <dsaxena@plexity.net>
10 */
11
12 #include <linux/kernel.h>
13 #include <linux/init.h>
14 #include <linux/device.h>
15 #include <linux/serial.h>
16 #include <linux/tty.h>
17 #include <linux/serial_8250.h>
18
19 #include <asm/types.h>
20 #include <asm/setup.h>
21 #include <asm/memory.h>
22 #include <mach/hardware.h>
23 #include <asm/irq.h>
24 #include <asm/mach-types.h>
25 #include <asm/mach/arch.h>
26 #include <asm/mach/flash.h>
27
28 #include "irqs.h"
29
30 #define COYOTE_IDE_BASE_PHYS IXP4XX_EXP_BUS_BASE(3)
31 #define COYOTE_IDE_BASE_VIRT 0xFFFE1000
32 #define COYOTE_IDE_REGION_SIZE 0x1000
33
34 #define COYOTE_IDE_DATA_PORT 0xFFFE10E0
35 #define COYOTE_IDE_CTRL_PORT 0xFFFE10FC
36 #define COYOTE_IDE_ERROR_PORT 0xFFFE10E2
37 #define IRQ_COYOTE_IDE IRQ_IXP4XX_GPIO5
38
39 static struct flash_platform_data coyote_flash_data = {
40 .map_name = "cfi_probe",
41 .width = 2,
42 };
43
44 static struct resource coyote_flash_resource = {
45 .flags = IORESOURCE_MEM,
46 };
47
48 static struct platform_device coyote_flash = {
49 .name = "IXP4XX-Flash",
50 .id = 0,
51 .dev = {
52 .platform_data = &coyote_flash_data,
53 },
54 .num_resources = 1,
55 .resource = &coyote_flash_resource,
56 };
57
58 static struct resource coyote_uart_resource = {
59 .start = IXP4XX_UART2_BASE_PHYS,
60 .end = IXP4XX_UART2_BASE_PHYS + 0x0fff,
61 .flags = IORESOURCE_MEM,
62 };
63
64 static struct plat_serial8250_port coyote_uart_data[] = {
65 {
66 .mapbase = IXP4XX_UART2_BASE_PHYS,
67 .membase = (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET,
68 .irq = IRQ_IXP4XX_UART2,
69 .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
70 .iotype = UPIO_MEM,
71 .regshift = 2,
72 .uartclk = IXP4XX_UART_XTAL,
73 },
74 { },
75 };
76
77 static struct platform_device coyote_uart = {
78 .name = "serial8250",
79 .id = PLAT8250_DEV_PLATFORM,
80 .dev = {
81 .platform_data = coyote_uart_data,
82 },
83 .num_resources = 1,
84 .resource = &coyote_uart_resource,
85 };
86
87 static struct platform_device *coyote_devices[] __initdata = {
88 &coyote_flash,
89 &coyote_uart
90 };
91
coyote_init(void)92 static void __init coyote_init(void)
93 {
94 ixp4xx_sys_init();
95
96 coyote_flash_resource.start = IXP4XX_EXP_BUS_BASE(0);
97 coyote_flash_resource.end = IXP4XX_EXP_BUS_BASE(0) + SZ_32M - 1;
98
99 *IXP4XX_EXP_CS0 |= IXP4XX_FLASH_WRITABLE;
100 *IXP4XX_EXP_CS1 = *IXP4XX_EXP_CS0;
101
102 if (machine_is_ixdpg425()) {
103 coyote_uart_data[0].membase =
104 (char*)(IXP4XX_UART1_BASE_VIRT + REG_OFFSET);
105 coyote_uart_data[0].mapbase = IXP4XX_UART1_BASE_PHYS;
106 coyote_uart_data[0].irq = IRQ_IXP4XX_UART1;
107 }
108
109 platform_add_devices(coyote_devices, ARRAY_SIZE(coyote_devices));
110 }
111
112 #ifdef CONFIG_ARCH_ADI_COYOTE
113 MACHINE_START(ADI_COYOTE, "ADI Engineering Coyote")
114 /* Maintainer: MontaVista Software, Inc. */
115 .map_io = ixp4xx_map_io,
116 .init_early = ixp4xx_init_early,
117 .init_irq = ixp4xx_init_irq,
118 .init_time = ixp4xx_timer_init,
119 .atag_offset = 0x100,
120 .init_machine = coyote_init,
121 #if defined(CONFIG_PCI)
122 .dma_zone_size = SZ_64M,
123 #endif
124 .restart = ixp4xx_restart,
125 MACHINE_END
126 #endif
127
128 /*
129 * IXDPG425 is identical to Coyote except for which serial port
130 * is connected.
131 */
132 #ifdef CONFIG_MACH_IXDPG425
133 MACHINE_START(IXDPG425, "Intel IXDPG425")
134 /* Maintainer: MontaVista Software, Inc. */
135 .map_io = ixp4xx_map_io,
136 .init_early = ixp4xx_init_early,
137 .init_irq = ixp4xx_init_irq,
138 .init_time = ixp4xx_timer_init,
139 .atag_offset = 0x100,
140 .init_machine = coyote_init,
141 .restart = ixp4xx_restart,
142 MACHINE_END
143 #endif
144
145