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/*
* Atheros AR71xx SoC platform devices
*
* Copyright (C) 2008 Gabor Juhos <juhosg@openwrt.org>
* Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
*
* Parts of this file are based on Atheros' 2.6.15 BSP
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
* by the Free Software Foundation.
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/dma-mapping.h>
#include <linux/platform_device.h>
#include <linux/serial_8250.h>
#include <asm/mips_machine.h>
#include <asm/mach-ar71xx/ar71xx.h>
#include <asm/mach-ar71xx/platform.h>
/*
* OHCI (USB full speed host controller)
*/
static struct resource ar71xx_usb_ohci_resources[] = {
[0] = {
.start = AR71XX_OHCI_BASE,
.end = AR71XX_OHCI_BASE + AR71XX_OHCI_SIZE - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = AR71XX_MISC_IRQ_OHCI,
.end = AR71XX_MISC_IRQ_OHCI,
.flags = IORESOURCE_IRQ,
},
};
static u64 ar71xx_ohci_dmamask = DMA_BIT_MASK(32);
static struct platform_device ar71xx_usb_ohci_device = {
.name = "ar71xx-ohci",
.id = 0,
.resource = ar71xx_usb_ohci_resources,
.num_resources = ARRAY_SIZE(ar71xx_usb_ohci_resources),
.dev = {
.dma_mask = &ar71xx_ohci_dmamask,
.coherent_dma_mask = DMA_BIT_MASK(32),
},
};
/*
* EHCI (USB full speed host controller)
*/
static struct resource ar71xx_usb_ehci_resources[] = {
[0] = {
.start = AR71XX_EHCI_BASE,
.end = AR71XX_EHCI_BASE + AR71XX_EHCI_SIZE - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = AR71XX_CPU_IRQ_USB,
.end = AR71XX_CPU_IRQ_USB,
.flags = IORESOURCE_IRQ,
},
};
static u64 ar71xx_ehci_dmamask = DMA_BIT_MASK(32);
static struct platform_device ar71xx_usb_ehci_device = {
.name = "ar71xx-ehci",
.id = 0,
.resource = ar71xx_usb_ehci_resources,
.num_resources = ARRAY_SIZE(ar71xx_usb_ehci_resources),
.dev = {
.dma_mask = &ar71xx_ehci_dmamask,
.coherent_dma_mask = DMA_BIT_MASK(32),
},
};
#define AR71XX_USB_RESET_MASK \
(RESET_MODULE_USB_HOST | RESET_MODULE_USB_PHY \
| RESET_MODULE_USB_OHCI_DLL)
void __init ar71xx_add_device_usb(void)
{
ar71xx_device_stop(AR71XX_USB_RESET_MASK);
mdelay(1000);
ar71xx_device_start(AR71XX_USB_RESET_MASK);
/* Turning on the Buff and Desc swap bits */
ar71xx_usb_ctrl_wr(USB_CTRL_REG_CONFIG, 0xf0000);
/* WAR for HW bug. Here it adjusts the duration between two SOFS */
ar71xx_usb_ctrl_wr(USB_CTRL_REG_FLADJ, 0x20c00);
mdelay(900);
platform_device_register(&ar71xx_usb_ohci_device);
platform_device_register(&ar71xx_usb_ehci_device);
}
#ifdef CONFIG_AR71XX_EARLY_SERIAL
static void __init ar71xx_add_device_uart(void) {};
#else
static struct resource ar71xx_uart_resources[] = {
{
.start = AR71XX_UART_BASE,
.end = AR71XX_UART_BASE + AR71XX_UART_SIZE - 1,
.flags = IORESOURCE_MEM,
},
};
#define AR71XX_UART_FLAGS (UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_IOREMAP)
static struct plat_serial8250_port ar71xx_uart_data[] = {
{
.mapbase = AR71XX_UART_BASE,
.irq = AR71XX_MISC_IRQ_UART,
.flags = AR71XX_UART_FLAGS,
.iotype = UPIO_MEM32,
.regshift = 2,
}, {
/* terminating entry */
}
};
static struct platform_device ar71xx_uart_device = {
.name = "serial8250",
.id = PLAT8250_DEV_PLATFORM,
.resource = ar71xx_uart_resources,
.num_resources = ARRAY_SIZE(ar71xx_uart_resources),
.dev = {
.platform_data = ar71xx_uart_data
},
};
static void __init ar71xx_add_device_uart(void)
{
ar71xx_uart_data[0].uartclk = ar71xx_ahb_freq;
platform_device_register(&ar71xx_uart_device);
}
#endif /* CONFIG_AR71XX_EARLY_SERIAL */
static struct resource ar71xx_eth0_resources[] = {
{
.name = "mac_base",
.flags = IORESOURCE_MEM,
.start = AR71XX_GE0_BASE,
.end = AR71XX_GE0_BASE + AR71XX_GE0_SIZE - 1,
}, {
.name = "mii_ctrl",
.flags = IORESOURCE_MEM,
.start = AR71XX_MII_BASE + MII_REG_MII0_CTRL,
.end = AR71XX_MII_BASE + MII_REG_MII0_CTRL + 3,
}, {
.name = "mac_irq",
.flags = IORESOURCE_IRQ,
.start = AR71XX_CPU_IRQ_GE0,
.end = AR71XX_CPU_IRQ_GE0,
},
};
static struct ag71xx_platform_data ar71xx_eth0_data = {
.reset_bit = RESET_MODULE_GE0_MAC,
.flush_reg = DDR_REG_FLUSH_GE0,
};
static struct platform_device ar71xx_eth0_device = {
.name = "ag71xx",
.id = 0,
.resource = ar71xx_eth0_resources,
.num_resources = ARRAY_SIZE(ar71xx_eth0_resources),
.dev = {
.platform_data = &ar71xx_eth0_data,
},
};
static struct resource ar71xx_eth1_resources[] = {
{
.name = "mac_base",
.flags = IORESOURCE_MEM,
.start = AR71XX_GE1_BASE,
.end = AR71XX_GE1_BASE + AR71XX_GE1_SIZE - 1,
}, {
.name = "mii_ctrl",
.flags = IORESOURCE_MEM,
.start = AR71XX_MII_BASE + MII_REG_MII1_CTRL,
.end = AR71XX_MII_BASE + MII_REG_MII1_CTRL + 3,
}, {
.name = "mac_irq",
.flags = IORESOURCE_IRQ,
.start = AR71XX_CPU_IRQ_GE1,
.end = AR71XX_CPU_IRQ_GE1,
},
};
static struct ag71xx_platform_data ar71xx_eth1_data = {
.reset_bit = RESET_MODULE_GE1_MAC,
.flush_reg = DDR_REG_FLUSH_GE1,
};
static struct platform_device ar71xx_eth1_device = {
.name = "ag71xx",
.id = 1,
.resource = ar71xx_eth1_resources,
.num_resources = ARRAY_SIZE(ar71xx_eth1_resources),
.dev = {
.platform_data = &ar71xx_eth1_data,
},
};
void __init ar71xx_add_device_eth(unsigned int id, phy_interface_t phy_if_mode,
u32 phy_mask)
{
struct platform_device *pdev;
switch (id) {
case 0:
switch (phy_if_mode) {
case PHY_INTERFACE_MODE_MII:
ar71xx_eth0_data.mii_if = MII0_CTRL_IF_MII;
break;
case PHY_INTERFACE_MODE_GMII:
ar71xx_eth0_data.mii_if = MII0_CTRL_IF_GMII;
break;
case PHY_INTERFACE_MODE_RGMII:
ar71xx_eth0_data.mii_if = MII0_CTRL_IF_RGMII;
break;
case PHY_INTERFACE_MODE_RMII:
ar71xx_eth0_data.mii_if = MII0_CTRL_IF_RMII;
break;
default:
BUG();
}
ar71xx_eth0_data.phy_if_mode = phy_if_mode;
ar71xx_eth0_data.phy_mask = phy_mask;
pdev = &ar71xx_eth0_device;
break;
case 1:
switch (phy_if_mode) {
case PHY_INTERFACE_MODE_RMII:
ar71xx_eth1_data.mii_if = MII1_CTRL_IF_RMII;
break;
case PHY_INTERFACE_MODE_RGMII:
ar71xx_eth1_data.mii_if = MII1_CTRL_IF_RGMII;
break;
default:
BUG();
}
ar71xx_eth1_data.phy_if_mode = phy_if_mode;
ar71xx_eth1_data.phy_mask = phy_mask;
pdev = &ar71xx_eth1_device;
break;
default:
pdev = NULL;
break;
}
if (pdev)
platform_device_register(pdev);
}
static struct resource ar71xx_spi_resources[] = {
[0] = {
.start = AR71XX_SPI_BASE,
.end = AR71XX_SPI_BASE + AR71XX_SPI_SIZE - 1,
.flags = IORESOURCE_MEM,
},
};
static struct platform_device ar71xx_spi_device = {
.name = "ar71xx-spi",
.id = -1,
.resource = ar71xx_spi_resources,
.num_resources = ARRAY_SIZE(ar71xx_spi_resources),
};
void __init ar71xx_add_device_spi(struct ar71xx_spi_platform_data *pdata,
struct spi_board_info const *info,
unsigned n)
{
ar71xx_gpio_function_enable(GPIO_FUNC_SPI_EN);
spi_register_board_info(info, n);
ar71xx_spi_device.dev.platform_data = pdata;
platform_device_register(&ar71xx_spi_device);
}
static int __init ar71xx_machine_setup(void)
{
ar71xx_print_cmdline();
ar71xx_gpio_init();
ar71xx_add_device_uart();
mips_machine_setup();
return 0;
}
arch_initcall(ar71xx_machine_setup);
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