1 // SPDX-License-Identifier: GPL-2.0
3 * arch/arm/mach-ixp4xx/vulcan-setup.c
5 * Arcom/Eurotech Vulcan board-setup
7 * Copyright (C) 2010 Marc Zyngier <maz@misterjones.org>
9 * based on fsg-setup.c:
10 * Copyright (C) 2008 Rod Whitby <rod@whitby.id.au>
13 #include <linux/if_ether.h>
14 #include <linux/irq.h>
15 #include <linux/serial.h>
16 #include <linux/serial_8250.h>
18 #include <linux/w1-gpio.h>
19 #include <linux/mtd/plat-ram.h>
20 #include <asm/mach-types.h>
21 #include <asm/mach/arch.h>
22 #include <asm/mach/flash.h>
24 static struct flash_platform_data vulcan_flash_data = {
25 .map_name = "cfi_probe",
29 static struct resource vulcan_flash_resource = {
30 .flags = IORESOURCE_MEM,
33 static struct platform_device vulcan_flash = {
34 .name = "IXP4XX-Flash",
37 .platform_data = &vulcan_flash_data,
39 .resource = &vulcan_flash_resource,
43 static struct platdata_mtd_ram vulcan_sram_data = {
44 .mapname = "Vulcan SRAM",
48 static struct resource vulcan_sram_resource = {
49 .flags = IORESOURCE_MEM,
52 static struct platform_device vulcan_sram = {
56 .platform_data = &vulcan_sram_data,
58 .resource = &vulcan_sram_resource,
62 static struct resource vulcan_uart_resources[] = {
64 .start = IXP4XX_UART1_BASE_PHYS,
65 .end = IXP4XX_UART1_BASE_PHYS + 0x0fff,
66 .flags = IORESOURCE_MEM,
69 .start = IXP4XX_UART2_BASE_PHYS,
70 .end = IXP4XX_UART2_BASE_PHYS + 0x0fff,
71 .flags = IORESOURCE_MEM,
74 .flags = IORESOURCE_MEM,
78 static struct plat_serial8250_port vulcan_uart_data[] = {
80 .mapbase = IXP4XX_UART1_BASE_PHYS,
81 .membase = (char *)IXP4XX_UART1_BASE_VIRT + REG_OFFSET,
82 .irq = IRQ_IXP4XX_UART1,
83 .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
86 .uartclk = IXP4XX_UART_XTAL,
89 .mapbase = IXP4XX_UART2_BASE_PHYS,
90 .membase = (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET,
91 .irq = IRQ_IXP4XX_UART2,
92 .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
95 .uartclk = IXP4XX_UART_XTAL,
98 .irq = IXP4XX_GPIO_IRQ(4),
99 .irqflags = IRQF_TRIGGER_LOW,
100 .flags = UPF_IOREMAP | UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
105 .irq = IXP4XX_GPIO_IRQ(4),
106 .irqflags = IRQF_TRIGGER_LOW,
107 .flags = UPF_IOREMAP | UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
114 static struct platform_device vulcan_uart = {
115 .name = "serial8250",
116 .id = PLAT8250_DEV_PLATFORM,
118 .platform_data = vulcan_uart_data,
120 .resource = vulcan_uart_resources,
121 .num_resources = ARRAY_SIZE(vulcan_uart_resources),
124 static struct eth_plat_info vulcan_plat_eth[] = {
137 static struct platform_device vulcan_eth[] = {
139 .name = "ixp4xx_eth",
140 .id = IXP4XX_ETH_NPEB,
142 .platform_data = &vulcan_plat_eth[0],
146 .name = "ixp4xx_eth",
147 .id = IXP4XX_ETH_NPEC,
149 .platform_data = &vulcan_plat_eth[1],
154 static struct resource vulcan_max6369_resource = {
155 .flags = IORESOURCE_MEM,
158 static struct platform_device vulcan_max6369 = {
159 .name = "max6369_wdt",
161 .resource = &vulcan_max6369_resource,
165 static struct w1_gpio_platform_data vulcan_w1_gpio_pdata = {
167 .ext_pullup_enable_pin = -EINVAL,
170 static struct platform_device vulcan_w1_gpio = {
174 .platform_data = &vulcan_w1_gpio_pdata,
178 static struct platform_device *vulcan_devices[] __initdata = {
188 static void __init vulcan_init(void)
192 /* Flash is spread over both CS0 and CS1 */
193 vulcan_flash_resource.start = IXP4XX_EXP_BUS_BASE(0);
194 vulcan_flash_resource.end = IXP4XX_EXP_BUS_BASE(0) + SZ_32M - 1;
195 *IXP4XX_EXP_CS0 = IXP4XX_EXP_BUS_CS_EN |
196 IXP4XX_EXP_BUS_STROBE_T(3) |
197 IXP4XX_EXP_BUS_SIZE(0xF) |
198 IXP4XX_EXP_BUS_BYTE_RD16 |
199 IXP4XX_EXP_BUS_WR_EN;
200 *IXP4XX_EXP_CS1 = *IXP4XX_EXP_CS0;
202 /* SRAM on CS2, (256kB, 8bit, writable) */
203 vulcan_sram_resource.start = IXP4XX_EXP_BUS_BASE(2);
204 vulcan_sram_resource.end = IXP4XX_EXP_BUS_BASE(2) + SZ_256K - 1;
205 *IXP4XX_EXP_CS2 = IXP4XX_EXP_BUS_CS_EN |
206 IXP4XX_EXP_BUS_STROBE_T(1) |
207 IXP4XX_EXP_BUS_HOLD_T(2) |
208 IXP4XX_EXP_BUS_SIZE(9) |
209 IXP4XX_EXP_BUS_SPLT_EN |
210 IXP4XX_EXP_BUS_WR_EN |
211 IXP4XX_EXP_BUS_BYTE_EN;
213 /* XR16L2551 on CS3 (Moto style, 512 bytes, 8bits, writable) */
214 vulcan_uart_resources[2].start = IXP4XX_EXP_BUS_BASE(3);
215 vulcan_uart_resources[2].end = IXP4XX_EXP_BUS_BASE(3) + 16 - 1;
216 vulcan_uart_data[2].mapbase = vulcan_uart_resources[2].start;
217 vulcan_uart_data[3].mapbase = vulcan_uart_data[2].mapbase + 8;
218 *IXP4XX_EXP_CS3 = IXP4XX_EXP_BUS_CS_EN |
219 IXP4XX_EXP_BUS_STROBE_T(3) |
220 IXP4XX_EXP_BUS_CYCLES(IXP4XX_EXP_BUS_CYCLES_MOTOROLA)|
221 IXP4XX_EXP_BUS_WR_EN |
222 IXP4XX_EXP_BUS_BYTE_EN;
224 /* GPIOS on CS4 (512 bytes, 8bits, writable) */
225 *IXP4XX_EXP_CS4 = IXP4XX_EXP_BUS_CS_EN |
226 IXP4XX_EXP_BUS_WR_EN |
227 IXP4XX_EXP_BUS_BYTE_EN;
229 /* max6369 on CS5 (512 bytes, 8bits, writable) */
230 vulcan_max6369_resource.start = IXP4XX_EXP_BUS_BASE(5);
231 vulcan_max6369_resource.end = IXP4XX_EXP_BUS_BASE(5);
232 *IXP4XX_EXP_CS5 = IXP4XX_EXP_BUS_CS_EN |
233 IXP4XX_EXP_BUS_WR_EN |
234 IXP4XX_EXP_BUS_BYTE_EN;
236 platform_add_devices(vulcan_devices, ARRAY_SIZE(vulcan_devices));
239 MACHINE_START(ARCOM_VULCAN, "Arcom/Eurotech Vulcan")
240 /* Maintainer: Marc Zyngier <maz@misterjones.org> */
241 .map_io = ixp4xx_map_io,
242 .init_early = ixp4xx_init_early,
243 .init_irq = ixp4xx_init_irq,
244 .init_time = ixp4xx_timer_init,
245 .atag_offset = 0x100,
246 .init_machine = vulcan_init,
247 #if defined(CONFIG_PCI)
248 .dma_zone_size = SZ_64M,
250 .restart = ixp4xx_restart,