1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * arch/arm/mach-ixp4xx/wg302-setup.c
4 *
5 * Board setup for the Netgear WG302 v2 and WAG302 v2
6 *
7 * Copyright (C) 2007 Imre Kaloz <Kaloz@openwrt.org>
8 *
9 * based on coyote-setup.c:
10 * Copyright (C) 2003-2005 MontaVista Software, Inc.
11 *
12 * Author: Imre Kaloz <kaloz@openwrt.org>
13 *
14 */
15
16 #include <linux/kernel.h>
17 #include <linux/init.h>
18 #include <linux/device.h>
19 #include <linux/serial.h>
20 #include <linux/tty.h>
21 #include <linux/serial_8250.h>
22
23 #include <asm/types.h>
24 #include <asm/setup.h>
25 #include <asm/memory.h>
26 #include <mach/hardware.h>
27 #include <asm/irq.h>
28 #include <asm/mach-types.h>
29 #include <asm/mach/arch.h>
30 #include <asm/mach/flash.h>
31
32 #include "irqs.h"
33
34 static struct flash_platform_data wg302v2_flash_data = {
35 .map_name = "cfi_probe",
36 .width = 2,
37 };
38
39 static struct resource wg302v2_flash_resource = {
40 .flags = IORESOURCE_MEM,
41 };
42
43 static struct platform_device wg302v2_flash = {
44 .name = "IXP4XX-Flash",
45 .id = 0,
46 .dev = {
47 .platform_data = &wg302v2_flash_data,
48 },
49 .num_resources = 1,
50 .resource = &wg302v2_flash_resource,
51 };
52
53 static struct resource wg302v2_uart_resource = {
54 .start = IXP4XX_UART2_BASE_PHYS,
55 .end = IXP4XX_UART2_BASE_PHYS + 0x0fff,
56 .flags = IORESOURCE_MEM,
57 };
58
59 static struct plat_serial8250_port wg302v2_uart_data[] = {
60 {
61 .mapbase = IXP4XX_UART2_BASE_PHYS,
62 .membase = (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET,
63 .irq = IRQ_IXP4XX_UART2,
64 .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
65 .iotype = UPIO_MEM,
66 .regshift = 2,
67 .uartclk = IXP4XX_UART_XTAL,
68 },
69 { },
70 };
71
72 static struct platform_device wg302v2_uart = {
73 .name = "serial8250",
74 .id = PLAT8250_DEV_PLATFORM,
75 .dev = {
76 .platform_data = wg302v2_uart_data,
77 },
78 .num_resources = 1,
79 .resource = &wg302v2_uart_resource,
80 };
81
82 static struct platform_device *wg302v2_devices[] __initdata = {
83 &wg302v2_flash,
84 &wg302v2_uart,
85 };
86
wg302v2_init(void)87 static void __init wg302v2_init(void)
88 {
89 ixp4xx_sys_init();
90
91 wg302v2_flash_resource.start = IXP4XX_EXP_BUS_BASE(0);
92 wg302v2_flash_resource.end = IXP4XX_EXP_BUS_BASE(0) + SZ_32M - 1;
93
94 *IXP4XX_EXP_CS0 |= IXP4XX_FLASH_WRITABLE;
95 *IXP4XX_EXP_CS1 = *IXP4XX_EXP_CS0;
96
97 platform_add_devices(wg302v2_devices, ARRAY_SIZE(wg302v2_devices));
98 }
99
100 #ifdef CONFIG_MACH_WG302V2
101 MACHINE_START(WG302V2, "Netgear WG302 v2 / WAG302 v2")
102 /* Maintainer: Imre Kaloz <kaloz@openwrt.org> */
103 .map_io = ixp4xx_map_io,
104 .init_early = ixp4xx_init_early,
105 .init_irq = ixp4xx_init_irq,
106 .init_time = ixp4xx_timer_init,
107 .atag_offset = 0x100,
108 .init_machine = wg302v2_init,
109 #if defined(CONFIG_PCI)
110 .dma_zone_size = SZ_64M,
111 #endif
112 .restart = ixp4xx_restart,
113 MACHINE_END
114 #endif
115