2 * Atheros AR71xx SoC platform devices
4 * Copyright (C) 2008 Gabor Juhos <juhosg@openwrt.org>
5 * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
7 * Parts of this file are based on Atheros' 2.6.15 BSP
9 * This program is free software; you can redistribute it and/or modify it
10 * under the terms of the GNU General Public License version 2 as published
11 * by the Free Software Foundation.
14 #include <linux/kernel.h>
15 #include <linux/init.h>
16 #include <linux/delay.h>
17 #include <linux/dma-mapping.h>
18 #include <linux/platform_device.h>
19 #include <linux/serial_8250.h>
21 #include <asm/mips_machine.h>
22 #include <asm/mach-ar71xx/ar71xx.h>
23 #include <asm/mach-ar71xx/platform.h>
26 * OHCI (USB full speed host controller)
28 static struct resource ar71xx_usb_ohci_resources
[] = {
30 .start
= AR71XX_OHCI_BASE
,
31 .end
= AR71XX_OHCI_BASE
+ AR71XX_OHCI_SIZE
- 1,
32 .flags
= IORESOURCE_MEM
,
35 .start
= AR71XX_MISC_IRQ_OHCI
,
36 .end
= AR71XX_MISC_IRQ_OHCI
,
37 .flags
= IORESOURCE_IRQ
,
41 static u64 ar71xx_ohci_dmamask
= DMA_BIT_MASK(32);
42 static struct platform_device ar71xx_usb_ohci_device
= {
43 .name
= "ar71xx-ohci",
45 .resource
= ar71xx_usb_ohci_resources
,
46 .num_resources
= ARRAY_SIZE(ar71xx_usb_ohci_resources
),
48 .dma_mask
= &ar71xx_ohci_dmamask
,
49 .coherent_dma_mask
= DMA_BIT_MASK(32),
54 * EHCI (USB full speed host controller)
56 static struct resource ar71xx_usb_ehci_resources
[] = {
58 .start
= AR71XX_EHCI_BASE
,
59 .end
= AR71XX_EHCI_BASE
+ AR71XX_EHCI_SIZE
- 1,
60 .flags
= IORESOURCE_MEM
,
63 .start
= AR71XX_CPU_IRQ_USB
,
64 .end
= AR71XX_CPU_IRQ_USB
,
65 .flags
= IORESOURCE_IRQ
,
69 static u64 ar71xx_ehci_dmamask
= DMA_BIT_MASK(32);
70 static struct platform_device ar71xx_usb_ehci_device
= {
71 .name
= "ar71xx-ehci",
73 .resource
= ar71xx_usb_ehci_resources
,
74 .num_resources
= ARRAY_SIZE(ar71xx_usb_ehci_resources
),
76 .dma_mask
= &ar71xx_ehci_dmamask
,
77 .coherent_dma_mask
= DMA_BIT_MASK(32),
81 #define AR71XX_USB_RESET_MASK \
82 (RESET_MODULE_USB_HOST | RESET_MODULE_USB_PHY \
83 | RESET_MODULE_USB_OHCI_DLL)
85 void __init
ar71xx_add_device_usb(void)
87 ar71xx_device_stop(AR71XX_USB_RESET_MASK
);
89 ar71xx_device_start(AR71XX_USB_RESET_MASK
);
91 /* Turning on the Buff and Desc swap bits */
92 ar71xx_usb_ctrl_wr(USB_CTRL_REG_CONFIG
, 0xf0000);
94 /* WAR for HW bug. Here it adjusts the duration between two SOFS */
95 ar71xx_usb_ctrl_wr(USB_CTRL_REG_FLADJ
, 0x20c00);
99 platform_device_register(&ar71xx_usb_ohci_device
);
100 platform_device_register(&ar71xx_usb_ehci_device
);
103 #ifdef CONFIG_AR71XX_EARLY_SERIAL
104 static void __init
ar71xx_add_device_uart(void) {};
106 static struct resource ar71xx_uart_resources
[] = {
108 .start
= AR71XX_UART_BASE
,
109 .end
= AR71XX_UART_BASE
+ AR71XX_UART_SIZE
- 1,
110 .flags
= IORESOURCE_MEM
,
114 #define AR71XX_UART_FLAGS (UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_IOREMAP)
115 static struct plat_serial8250_port ar71xx_uart_data
[] = {
117 .mapbase
= AR71XX_UART_BASE
,
118 .irq
= AR71XX_MISC_IRQ_UART
,
119 .flags
= AR71XX_UART_FLAGS
,
120 .iotype
= UPIO_MEM32
,
123 /* terminating entry */
127 static struct platform_device ar71xx_uart_device
= {
128 .name
= "serial8250",
129 .id
= PLAT8250_DEV_PLATFORM
,
130 .resource
= ar71xx_uart_resources
,
131 .num_resources
= ARRAY_SIZE(ar71xx_uart_resources
),
133 .platform_data
= ar71xx_uart_data
137 static void __init
ar71xx_add_device_uart(void)
139 ar71xx_uart_data
[0].uartclk
= ar71xx_ahb_freq
;
140 platform_device_register(&ar71xx_uart_device
);
142 #endif /* CONFIG_AR71XX_EARLY_SERIAL */
144 static struct resource ar71xx_eth0_resources
[] = {
147 .flags
= IORESOURCE_MEM
,
148 .start
= AR71XX_GE0_BASE
,
149 .end
= AR71XX_GE0_BASE
+ AR71XX_GE0_SIZE
- 1,
152 .flags
= IORESOURCE_MEM
,
153 .start
= AR71XX_MII_BASE
+ MII_REG_MII0_CTRL
,
154 .end
= AR71XX_MII_BASE
+ MII_REG_MII0_CTRL
+ 3,
157 .flags
= IORESOURCE_IRQ
,
158 .start
= AR71XX_CPU_IRQ_GE0
,
159 .end
= AR71XX_CPU_IRQ_GE0
,
163 static struct ag71xx_platform_data ar71xx_eth0_data
= {
164 .reset_bit
= RESET_MODULE_GE0_MAC
,
165 .flush_reg
= DDR_REG_FLUSH_GE0
,
168 static struct platform_device ar71xx_eth0_device
= {
171 .resource
= ar71xx_eth0_resources
,
172 .num_resources
= ARRAY_SIZE(ar71xx_eth0_resources
),
174 .platform_data
= &ar71xx_eth0_data
,
178 static struct resource ar71xx_eth1_resources
[] = {
181 .flags
= IORESOURCE_MEM
,
182 .start
= AR71XX_GE1_BASE
,
183 .end
= AR71XX_GE1_BASE
+ AR71XX_GE1_SIZE
- 1,
186 .flags
= IORESOURCE_MEM
,
187 .start
= AR71XX_MII_BASE
+ MII_REG_MII1_CTRL
,
188 .end
= AR71XX_MII_BASE
+ MII_REG_MII1_CTRL
+ 3,
191 .flags
= IORESOURCE_IRQ
,
192 .start
= AR71XX_CPU_IRQ_GE1
,
193 .end
= AR71XX_CPU_IRQ_GE1
,
197 static struct ag71xx_platform_data ar71xx_eth1_data
= {
198 .reset_bit
= RESET_MODULE_GE1_MAC
,
199 .flush_reg
= DDR_REG_FLUSH_GE1
,
202 static struct platform_device ar71xx_eth1_device
= {
205 .resource
= ar71xx_eth1_resources
,
206 .num_resources
= ARRAY_SIZE(ar71xx_eth1_resources
),
208 .platform_data
= &ar71xx_eth1_data
,
212 void __init
ar71xx_add_device_eth(unsigned int id
, phy_interface_t phy_if_mode
,
215 struct platform_device
*pdev
;
219 switch (phy_if_mode
) {
220 case PHY_INTERFACE_MODE_MII
:
221 ar71xx_eth0_data
.mii_if
= MII0_CTRL_IF_MII
;
223 case PHY_INTERFACE_MODE_GMII
:
224 ar71xx_eth0_data
.mii_if
= MII0_CTRL_IF_GMII
;
226 case PHY_INTERFACE_MODE_RGMII
:
227 ar71xx_eth0_data
.mii_if
= MII0_CTRL_IF_RGMII
;
229 case PHY_INTERFACE_MODE_RMII
:
230 ar71xx_eth0_data
.mii_if
= MII0_CTRL_IF_RMII
;
235 ar71xx_eth0_data
.phy_if_mode
= phy_if_mode
;
236 ar71xx_eth0_data
.phy_mask
= phy_mask
;
237 pdev
= &ar71xx_eth0_device
;
240 switch (phy_if_mode
) {
241 case PHY_INTERFACE_MODE_RMII
:
242 ar71xx_eth1_data
.mii_if
= MII1_CTRL_IF_RMII
;
244 case PHY_INTERFACE_MODE_RGMII
:
245 ar71xx_eth1_data
.mii_if
= MII1_CTRL_IF_RGMII
;
250 ar71xx_eth1_data
.phy_if_mode
= phy_if_mode
;
251 ar71xx_eth1_data
.phy_mask
= phy_mask
;
252 pdev
= &ar71xx_eth1_device
;
260 platform_device_register(pdev
);
263 static struct resource ar71xx_spi_resources
[] = {
265 .start
= AR71XX_SPI_BASE
,
266 .end
= AR71XX_SPI_BASE
+ AR71XX_SPI_SIZE
- 1,
267 .flags
= IORESOURCE_MEM
,
271 static struct platform_device ar71xx_spi_device
= {
272 .name
= "ar71xx-spi",
274 .resource
= ar71xx_spi_resources
,
275 .num_resources
= ARRAY_SIZE(ar71xx_spi_resources
),
278 void __init
ar71xx_add_device_spi(struct ar71xx_spi_platform_data
*pdata
,
279 struct spi_board_info
const *info
,
282 ar71xx_gpio_function_enable(GPIO_FUNC_SPI_EN
);
284 spi_register_board_info(info
, n
);
285 ar71xx_spi_device
.dev
.platform_data
= pdata
;
286 platform_device_register(&ar71xx_spi_device
);
289 static int __init
ar71xx_machine_setup(void)
291 ar71xx_print_cmdline();
295 ar71xx_add_device_uart();
297 mips_machine_setup();
301 arch_initcall(ar71xx_machine_setup
);