1/*
  2 * arch/arm/mach-ixp4xx/vulcan-setup.c
  3 *
  4 * Arcom/Eurotech Vulcan board-setup
  5 *
  6 * Copyright (C) 2010 Marc Zyngier <maz@misterjones.org>
  7 *
  8 * based on fsg-setup.c:
  9 *	Copyright (C) 2008 Rod Whitby <rod@whitby.id.au>
 10 */
 11
 12#include <linux/if_ether.h>
 13#include <linux/irq.h>
 14#include <linux/serial.h>
 15#include <linux/serial_8250.h>
 16#include <linux/io.h>
 17#include <linux/w1-gpio.h>
 18#include <linux/mtd/plat-ram.h>
 19#include <asm/mach-types.h>
 20#include <asm/mach/arch.h>
 21#include <asm/mach/flash.h>
 22
 23static struct flash_platform_data vulcan_flash_data = {
 24	.map_name	= "cfi_probe",
 25	.width		= 2,
 26};
 27
 28static struct resource vulcan_flash_resource = {
 29	.flags			= IORESOURCE_MEM,
 30};
 31
 32static struct platform_device vulcan_flash = {
 33	.name			= "IXP4XX-Flash",
 34	.id			= 0,
 35	.dev = {
 36		.platform_data	= &vulcan_flash_data,
 37	},
 38	.resource		= &vulcan_flash_resource,
 39	.num_resources		= 1,
 40};
 41
 42static struct platdata_mtd_ram vulcan_sram_data = {
 43	.mapname	= "Vulcan SRAM",
 44	.bankwidth	= 1,
 45};
 46
 47static struct resource vulcan_sram_resource = {
 48	.flags			= IORESOURCE_MEM,
 49};
 50
 51static struct platform_device vulcan_sram = {
 52	.name			= "mtd-ram",
 53	.id			= 0,
 54	.dev = {
 55		.platform_data	= &vulcan_sram_data,
 56	},
 57	.resource		= &vulcan_sram_resource,
 58	.num_resources		= 1,
 59};
 60
 61static struct resource vulcan_uart_resources[] = {
 62	[0] = {
 63		.start		= IXP4XX_UART1_BASE_PHYS,
 64		.end		= IXP4XX_UART1_BASE_PHYS + 0x0fff,
 65		.flags		= IORESOURCE_MEM,
 66	},
 67	[1] = {
 68		.start		= IXP4XX_UART2_BASE_PHYS,
 69		.end		= IXP4XX_UART2_BASE_PHYS + 0x0fff,
 70		.flags		= IORESOURCE_MEM,
 71	},
 72	[2] = {
 73		.flags		= IORESOURCE_MEM,
 74	},
 75};
 76
 77static struct plat_serial8250_port vulcan_uart_data[] = {
 78	[0] = {
 79		.mapbase	= IXP4XX_UART1_BASE_PHYS,
 80		.membase	= (char *)IXP4XX_UART1_BASE_VIRT + REG_OFFSET,
 81		.irq		= IRQ_IXP4XX_UART1,
 82		.flags		= UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
 83		.iotype		= UPIO_MEM,
 84		.regshift	= 2,
 85		.uartclk	= IXP4XX_UART_XTAL,
 86	},
 87	[1] = {
 88		.mapbase	= IXP4XX_UART2_BASE_PHYS,
 89		.membase	= (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET,
 90		.irq		= IRQ_IXP4XX_UART2,
 91		.flags		= UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
 92		.iotype		= UPIO_MEM,
 93		.regshift	= 2,
 94		.uartclk	= IXP4XX_UART_XTAL,
 95	},
 96	[2] = {
 97		.irq		= IXP4XX_GPIO_IRQ(4),
 98		.irqflags	= IRQF_TRIGGER_LOW,
 99		.flags		= UPF_IOREMAP | UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
100		.iotype		= UPIO_MEM,
101		.uartclk	= 1843200,
102	},
103	[3] = {
104		.irq		= IXP4XX_GPIO_IRQ(4),
105		.irqflags	= IRQF_TRIGGER_LOW,
106		.flags		= UPF_IOREMAP | UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
107		.iotype		= UPIO_MEM,
108		.uartclk	= 1843200,
109	},
110	{ }
111};
112
113static struct platform_device vulcan_uart = {
114	.name			= "serial8250",
115	.id			= PLAT8250_DEV_PLATFORM,
116	.dev = {
117		.platform_data	= vulcan_uart_data,
118	},
119	.resource		= vulcan_uart_resources,
120	.num_resources		= ARRAY_SIZE(vulcan_uart_resources),
121};
122
123static struct eth_plat_info vulcan_plat_eth[] = {
124	[0] = {
125		.phy		= 0,
126		.rxq		= 3,
127		.txreadyq	= 20,
128	},
129	[1] = {
130		.phy		= 1,
131		.rxq		= 4,
132		.txreadyq	= 21,
133	},
134};
135
136static struct platform_device vulcan_eth[] = {
137	[0] = {
138		.name			= "ixp4xx_eth",
139		.id			= IXP4XX_ETH_NPEB,
140		.dev = {
141			.platform_data	= &vulcan_plat_eth[0],
142		},
143	},
144	[1] = {
145		.name			= "ixp4xx_eth",
146		.id			= IXP4XX_ETH_NPEC,
147		.dev = {
148			.platform_data	= &vulcan_plat_eth[1],
149		},
150	},
151};
152
153static struct resource vulcan_max6369_resource = {
154	.flags			= IORESOURCE_MEM,
155};
156
157static struct platform_device vulcan_max6369 = {
158	.name			= "max6369_wdt",
159	.id			= -1,
160	.resource		= &vulcan_max6369_resource,
161	.num_resources		= 1,
162};
163
164static struct w1_gpio_platform_data vulcan_w1_gpio_pdata = {
165	.pin			= 14,
166};
167
168static struct platform_device vulcan_w1_gpio = {
169	.name			= "w1-gpio",
170	.id			= 0,
171	.dev			= {
172		.platform_data	= &vulcan_w1_gpio_pdata,
173	},
174};
175
176static struct platform_device *vulcan_devices[] __initdata = {
177	&vulcan_uart,
178	&vulcan_flash,
179	&vulcan_sram,
180	&vulcan_max6369,
181	&vulcan_eth[0],
182	&vulcan_eth[1],
183	&vulcan_w1_gpio,
184};
185
186static void __init vulcan_init(void)
187{
188	ixp4xx_sys_init();
189
190	/* Flash is spread over both CS0 and CS1 */
191	vulcan_flash_resource.start	 = IXP4XX_EXP_BUS_BASE(0);
192	vulcan_flash_resource.end	 = IXP4XX_EXP_BUS_BASE(0) + SZ_32M - 1;
193	*IXP4XX_EXP_CS0 = IXP4XX_EXP_BUS_CS_EN		|
194			  IXP4XX_EXP_BUS_STROBE_T(3)	|
195			  IXP4XX_EXP_BUS_SIZE(0xF)	|
196			  IXP4XX_EXP_BUS_BYTE_RD16	|
197			  IXP4XX_EXP_BUS_WR_EN;
198	*IXP4XX_EXP_CS1 = *IXP4XX_EXP_CS0;
199
200	/* SRAM on CS2, (256kB, 8bit, writable) */
201	vulcan_sram_resource.start	= IXP4XX_EXP_BUS_BASE(2);
202	vulcan_sram_resource.end	= IXP4XX_EXP_BUS_BASE(2) + SZ_256K - 1;
203	*IXP4XX_EXP_CS2 = IXP4XX_EXP_BUS_CS_EN		|
204			  IXP4XX_EXP_BUS_STROBE_T(1)	|
205			  IXP4XX_EXP_BUS_HOLD_T(2)	|
206			  IXP4XX_EXP_BUS_SIZE(9)	|
207			  IXP4XX_EXP_BUS_SPLT_EN	|
208			  IXP4XX_EXP_BUS_WR_EN		|
209			  IXP4XX_EXP_BUS_BYTE_EN;
210
211	/* XR16L2551 on CS3 (Moto style, 512 bytes, 8bits, writable) */
212	vulcan_uart_resources[2].start	= IXP4XX_EXP_BUS_BASE(3);
213	vulcan_uart_resources[2].end	= IXP4XX_EXP_BUS_BASE(3) + 16 - 1;
214	vulcan_uart_data[2].mapbase	= vulcan_uart_resources[2].start;
215	vulcan_uart_data[3].mapbase	= vulcan_uart_data[2].mapbase + 8;
216	*IXP4XX_EXP_CS3 = IXP4XX_EXP_BUS_CS_EN		|
217			  IXP4XX_EXP_BUS_STROBE_T(3)	|
218			  IXP4XX_EXP_BUS_CYCLES(IXP4XX_EXP_BUS_CYCLES_MOTOROLA)|
219			  IXP4XX_EXP_BUS_WR_EN		|
220			  IXP4XX_EXP_BUS_BYTE_EN;
221
222	/* GPIOS on CS4 (512 bytes, 8bits, writable) */
223	*IXP4XX_EXP_CS4 = IXP4XX_EXP_BUS_CS_EN		|
224			  IXP4XX_EXP_BUS_WR_EN		|
225			  IXP4XX_EXP_BUS_BYTE_EN;
226
227	/* max6369 on CS5 (512 bytes, 8bits, writable) */
228	vulcan_max6369_resource.start	= IXP4XX_EXP_BUS_BASE(5);
229	vulcan_max6369_resource.end	= IXP4XX_EXP_BUS_BASE(5);
230	*IXP4XX_EXP_CS5 = IXP4XX_EXP_BUS_CS_EN		|
231			  IXP4XX_EXP_BUS_WR_EN		|
232			  IXP4XX_EXP_BUS_BYTE_EN;
233
234	platform_add_devices(vulcan_devices, ARRAY_SIZE(vulcan_devices));
235}
236
237MACHINE_START(ARCOM_VULCAN, "Arcom/Eurotech Vulcan")
238	/* Maintainer: Marc Zyngier <maz@misterjones.org> */
239	.map_io		= ixp4xx_map_io,
240	.init_early	= ixp4xx_init_early,
241	.init_irq	= ixp4xx_init_irq,
242	.timer		= &ixp4xx_timer,
243	.atag_offset	= 0x100,
244	.init_machine	= vulcan_init,
245#if defined(CONFIG_PCI)
246	.dma_zone_size	= SZ_64M,
247#endif
248	.restart	= ixp4xx_restart,
249MACHINE_END