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448 lines
10 KiB
C
448 lines
10 KiB
C
/*
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* Atheros AR71xx SoC platform devices
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*
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* Copyright (C) 2008 Gabor Juhos <juhosg@openwrt.org>
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* Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
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*
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* Parts of this file are based on Atheros' 2.6.15 BSP
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published
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* by the Free Software Foundation.
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*/
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/delay.h>
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#include <linux/dma-mapping.h>
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#include <linux/platform_device.h>
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#include <linux/serial_8250.h>
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#include <asm/mips_machine.h>
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#include <asm/mach-ar71xx/ar71xx.h>
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#include <asm/mach-ar71xx/platform.h>
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static u8 ar71xx_mac_base[ETH_ALEN] __initdata;
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/*
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* OHCI (USB full speed host controller)
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*/
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static struct resource ar71xx_usb_ohci_resources[] = {
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[0] = {
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.start = AR71XX_OHCI_BASE,
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.end = AR71XX_OHCI_BASE + AR71XX_OHCI_SIZE - 1,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = AR71XX_MISC_IRQ_OHCI,
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.end = AR71XX_MISC_IRQ_OHCI,
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.flags = IORESOURCE_IRQ,
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},
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};
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static u64 ar71xx_ohci_dmamask = DMA_BIT_MASK(32);
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static struct platform_device ar71xx_usb_ohci_device = {
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.name = "ar71xx-ohci",
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.id = -1,
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.resource = ar71xx_usb_ohci_resources,
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.num_resources = ARRAY_SIZE(ar71xx_usb_ohci_resources),
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.dev = {
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.dma_mask = &ar71xx_ohci_dmamask,
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.coherent_dma_mask = DMA_BIT_MASK(32),
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},
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};
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/*
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* EHCI (USB full speed host controller)
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*/
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static struct resource ar71xx_usb_ehci_resources[] = {
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[0] = {
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.start = AR71XX_EHCI_BASE,
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.end = AR71XX_EHCI_BASE + AR71XX_EHCI_SIZE - 1,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = AR71XX_CPU_IRQ_USB,
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.end = AR71XX_CPU_IRQ_USB,
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.flags = IORESOURCE_IRQ,
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},
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};
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static u64 ar71xx_ehci_dmamask = DMA_BIT_MASK(32);
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static struct platform_device ar71xx_usb_ehci_device = {
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.name = "ar71xx-ehci",
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.id = -1,
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.resource = ar71xx_usb_ehci_resources,
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.num_resources = ARRAY_SIZE(ar71xx_usb_ehci_resources),
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.dev = {
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.dma_mask = &ar71xx_ehci_dmamask,
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.coherent_dma_mask = DMA_BIT_MASK(32),
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},
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};
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#define AR71XX_USB_RESET_MASK \
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(RESET_MODULE_USB_HOST | RESET_MODULE_USB_PHY \
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| RESET_MODULE_USB_OHCI_DLL)
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void __init ar71xx_add_device_usb(void)
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{
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ar71xx_device_stop(AR71XX_USB_RESET_MASK);
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mdelay(1000);
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ar71xx_device_start(AR71XX_USB_RESET_MASK);
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/* Turning on the Buff and Desc swap bits */
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ar71xx_usb_ctrl_wr(USB_CTRL_REG_CONFIG, 0xf0000);
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/* WAR for HW bug. Here it adjusts the duration between two SOFS */
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ar71xx_usb_ctrl_wr(USB_CTRL_REG_FLADJ, 0x20c00);
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mdelay(900);
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platform_device_register(&ar71xx_usb_ohci_device);
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platform_device_register(&ar71xx_usb_ehci_device);
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}
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#ifdef CONFIG_AR71XX_EARLY_SERIAL
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static void __init ar71xx_add_device_uart(void) {};
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#else
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static struct resource ar71xx_uart_resources[] = {
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{
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.start = AR71XX_UART_BASE,
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.end = AR71XX_UART_BASE + AR71XX_UART_SIZE - 1,
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.flags = IORESOURCE_MEM,
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},
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};
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#define AR71XX_UART_FLAGS (UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_IOREMAP)
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static struct plat_serial8250_port ar71xx_uart_data[] = {
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{
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.mapbase = AR71XX_UART_BASE,
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.irq = AR71XX_MISC_IRQ_UART,
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.flags = AR71XX_UART_FLAGS,
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.iotype = UPIO_MEM32,
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.regshift = 2,
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}, {
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/* terminating entry */
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}
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};
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static struct platform_device ar71xx_uart_device = {
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.name = "serial8250",
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.id = PLAT8250_DEV_PLATFORM,
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.resource = ar71xx_uart_resources,
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.num_resources = ARRAY_SIZE(ar71xx_uart_resources),
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.dev = {
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.platform_data = ar71xx_uart_data
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},
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};
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static void __init ar71xx_add_device_uart(void)
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{
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ar71xx_uart_data[0].uartclk = ar71xx_ahb_freq;
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platform_device_register(&ar71xx_uart_device);
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}
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#endif /* CONFIG_AR71XX_EARLY_SERIAL */
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static struct resource ar71xx_mdio_resources[] = {
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{
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.name = "mdio_base",
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.flags = IORESOURCE_MEM,
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.start = AR71XX_GE0_BASE + 0x20,
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.end = AR71XX_GE0_BASE + 0x38 - 1,
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}
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};
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static struct ag71xx_mdio_platform_data ar71xx_mdio_data = {
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.phy_mask = 0xffffffff,
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};
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static struct platform_device ar71xx_mdio_device = {
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.name = "ag71xx-mdio",
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.id = -1,
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.resource = ar71xx_mdio_resources,
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.num_resources = ARRAY_SIZE(ar71xx_mdio_resources),
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.dev = {
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.platform_data = &ar71xx_mdio_data,
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},
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};
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void __init ar71xx_add_device_mdio(u32 phy_mask)
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{
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ar71xx_mdio_data.phy_mask = phy_mask;
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platform_device_register(&ar71xx_mdio_device);
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}
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static struct resource ar71xx_eth0_resources[] = {
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{
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.name = "mac_base",
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.flags = IORESOURCE_MEM,
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.start = AR71XX_GE0_BASE,
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.end = AR71XX_GE0_BASE + 0x20 - 1,
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}, {
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.name = "mac_base2",
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.flags = IORESOURCE_MEM,
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.start = AR71XX_GE0_BASE + 0x38,
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.end = AR71XX_GE0_BASE + 0x200 - 1,
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}, {
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.name = "mii_ctrl",
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.flags = IORESOURCE_MEM,
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.start = AR71XX_MII_BASE + MII_REG_MII0_CTRL,
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.end = AR71XX_MII_BASE + MII_REG_MII0_CTRL + 3,
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}, {
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.name = "mac_irq",
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.flags = IORESOURCE_IRQ,
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.start = AR71XX_CPU_IRQ_GE0,
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.end = AR71XX_CPU_IRQ_GE0,
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},
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};
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static struct ag71xx_platform_data ar71xx_eth0_data = {
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.reset_bit = RESET_MODULE_GE0_MAC,
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.flush_reg = DDR_REG_FLUSH_GE0,
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};
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static struct platform_device ar71xx_eth0_device = {
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.name = "ag71xx",
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.id = 0,
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.resource = ar71xx_eth0_resources,
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.num_resources = ARRAY_SIZE(ar71xx_eth0_resources),
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.dev = {
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.platform_data = &ar71xx_eth0_data,
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},
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};
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static struct resource ar71xx_eth1_resources[] = {
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{
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.name = "mac_base",
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.flags = IORESOURCE_MEM,
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.start = AR71XX_GE1_BASE,
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.end = AR71XX_GE1_BASE + 0x20 - 1,
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}, {
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.name = "mac_base2",
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.flags = IORESOURCE_MEM,
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.start = AR71XX_GE1_BASE + 0x38,
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.end = AR71XX_GE1_BASE + 0x200 - 1,
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}, {
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.name = "mii_ctrl",
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.flags = IORESOURCE_MEM,
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.start = AR71XX_MII_BASE + MII_REG_MII1_CTRL,
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.end = AR71XX_MII_BASE + MII_REG_MII1_CTRL + 3,
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}, {
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.name = "mac_irq",
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.flags = IORESOURCE_IRQ,
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.start = AR71XX_CPU_IRQ_GE1,
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.end = AR71XX_CPU_IRQ_GE1,
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},
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};
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static struct ag71xx_platform_data ar71xx_eth1_data = {
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.reset_bit = RESET_MODULE_GE1_MAC,
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.flush_reg = DDR_REG_FLUSH_GE1,
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};
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static struct platform_device ar71xx_eth1_device = {
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.name = "ag71xx",
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.id = 1,
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.resource = ar71xx_eth1_resources,
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.num_resources = ARRAY_SIZE(ar71xx_eth1_resources),
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.dev = {
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.platform_data = &ar71xx_eth1_data,
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},
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};
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static int ar71xx_eth_instance __initdata;
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void __init ar71xx_add_device_eth(unsigned int id, phy_interface_t phy_if_mode,
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u32 phy_mask)
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{
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struct platform_device *pdev;
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switch (id) {
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case 0:
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switch (phy_if_mode) {
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case PHY_INTERFACE_MODE_MII:
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ar71xx_eth0_data.mii_if = MII0_CTRL_IF_MII;
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break;
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case PHY_INTERFACE_MODE_GMII:
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ar71xx_eth0_data.mii_if = MII0_CTRL_IF_GMII;
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break;
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case PHY_INTERFACE_MODE_RGMII:
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ar71xx_eth0_data.mii_if = MII0_CTRL_IF_RGMII;
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break;
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case PHY_INTERFACE_MODE_RMII:
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ar71xx_eth0_data.mii_if = MII0_CTRL_IF_RMII;
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break;
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default:
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BUG();
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}
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memcpy(ar71xx_eth0_data.mac_addr, ar71xx_mac_base, ETH_ALEN);
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ar71xx_eth0_data.mac_addr[5] += ar71xx_eth_instance;
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ar71xx_eth0_data.phy_if_mode = phy_if_mode;
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ar71xx_eth0_data.phy_mask = phy_mask;
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pdev = &ar71xx_eth0_device;
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break;
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case 1:
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switch (phy_if_mode) {
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case PHY_INTERFACE_MODE_RMII:
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ar71xx_eth1_data.mii_if = MII1_CTRL_IF_RMII;
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break;
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case PHY_INTERFACE_MODE_RGMII:
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ar71xx_eth1_data.mii_if = MII1_CTRL_IF_RGMII;
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break;
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default:
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BUG();
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}
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memcpy(ar71xx_eth1_data.mac_addr, ar71xx_mac_base, ETH_ALEN);
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ar71xx_eth1_data.mac_addr[5] += ar71xx_eth_instance;
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ar71xx_eth1_data.phy_if_mode = phy_if_mode;
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ar71xx_eth1_data.phy_mask = phy_mask;
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pdev = &ar71xx_eth1_device;
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break;
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default:
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pdev = NULL;
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break;
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}
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if (pdev) {
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platform_device_register(pdev);
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ar71xx_eth_instance++;
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}
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}
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static struct resource ar71xx_spi_resources[] = {
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[0] = {
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.start = AR71XX_SPI_BASE,
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.end = AR71XX_SPI_BASE + AR71XX_SPI_SIZE - 1,
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.flags = IORESOURCE_MEM,
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},
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};
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static struct platform_device ar71xx_spi_device = {
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.name = "ar71xx-spi",
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.id = -1,
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.resource = ar71xx_spi_resources,
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.num_resources = ARRAY_SIZE(ar71xx_spi_resources),
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};
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void __init ar71xx_add_device_spi(struct ar71xx_spi_platform_data *pdata,
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struct spi_board_info const *info,
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unsigned n)
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{
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ar71xx_gpio_function_enable(GPIO_FUNC_SPI_EN);
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spi_register_board_info(info, n);
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ar71xx_spi_device.dev.platform_data = pdata;
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platform_device_register(&ar71xx_spi_device);
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}
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void __init ar71xx_add_device_leds_gpio(int id, unsigned num_leds,
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struct gpio_led *leds)
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{
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struct platform_device *pdev;
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struct gpio_led_platform_data pdata;
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struct gpio_led *p;
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int err;
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p = kmalloc(num_leds * sizeof(*p), GFP_KERNEL);
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if (!p)
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return;
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memcpy(p, leds, num_leds * sizeof(*p));
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pdev = platform_device_alloc("leds-gpio", id);
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if (!pdev)
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goto err_free_leds;
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pdata.num_leds = num_leds;
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pdata.leds = leds;
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err = platform_device_add_data(pdev, &pdata, sizeof(pdata));
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if (err)
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goto err_put_pdev;
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err = platform_device_add(pdev);
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if (err)
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goto err_put_pdev;
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return;
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err_put_pdev:
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platform_device_put(pdev);
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err_free_leds:
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kfree(p);
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}
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void __init ar71xx_add_device_gpio_buttons(int id,
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unsigned poll_interval,
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unsigned nbuttons,
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struct gpio_button *buttons)
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{
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struct platform_device *pdev;
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struct gpio_buttons_platform_data pdata;
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struct gpio_button *p;
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int err;
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p = kmalloc(nbuttons * sizeof(*p), GFP_KERNEL);
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if (!p)
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return;
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memcpy(p, buttons, nbuttons * sizeof(*p));
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pdev = platform_device_alloc("gpio-buttons", id);
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if (!pdev)
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goto err_free_buttons;
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pdata.poll_interval = poll_interval;
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pdata.nbuttons = nbuttons;
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pdata.buttons = p;
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err = platform_device_add_data(pdev, &pdata, sizeof(pdata));
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if (err)
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goto err_put_pdev;
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err = platform_device_add(pdev);
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if (err)
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goto err_put_pdev;
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return;
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err_put_pdev:
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platform_device_put(pdev);
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err_free_buttons:
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kfree(p);
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}
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void __init ar71xx_set_mac_base(unsigned char *mac)
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{
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memcpy(ar71xx_mac_base, mac, ETH_ALEN);
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}
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void __init ar71xx_parse_mac_addr(char *mac_str)
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{
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u8 tmp[ETH_ALEN];
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int t;
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t = sscanf(mac_str, "%02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx",
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&tmp[0], &tmp[1], &tmp[2], &tmp[3], &tmp[4], &tmp[5]);
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if (t == ETH_ALEN)
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ar71xx_set_mac_base(tmp);
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else
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printk(KERN_DEBUG "AR71XX: failed to parse mac address "
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"\"%s\"\n", mac_str);
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}
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static int __init ar71xx_machine_setup(void)
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{
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ar71xx_gpio_init();
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ar71xx_add_device_uart();
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mips_machine_setup();
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return 0;
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}
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arch_initcall(ar71xx_machine_setup);
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