675 lines
15 KiB
C
675 lines
15 KiB
C
/*
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* Atheros AR71xx SoC platform devices
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*
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* Copyright (C) 2008-2009 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/etherdevice.h>
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#include <linux/platform_device.h>
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#include <linux/serial_8250.h>
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#include <linux/ath9k_platform.h>
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#include <asm/mach-ar71xx/ar71xx.h>
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#include "devices.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_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_ohci_device = {
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.name = "ar71xx-ohci",
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.id = -1,
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.resource = ar71xx_ohci_resources,
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.num_resources = ARRAY_SIZE(ar71xx_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_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 ar71xx_ehci_platform_data ar71xx_ehci_data;
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static struct platform_device ar71xx_ehci_device = {
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.name = "ar71xx-ehci",
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.id = -1,
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.resource = ar71xx_ehci_resources,
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.num_resources = ARRAY_SIZE(ar71xx_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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.platform_data = &ar71xx_ehci_data,
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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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static void ar71xx_usb_setup(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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}
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static void ar91xx_usb_setup(void)
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{
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ar71xx_device_stop(RESET_MODULE_USBSUS_OVERRIDE);
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mdelay(10);
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ar71xx_device_start(RESET_MODULE_USB_HOST);
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mdelay(10);
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ar71xx_device_start(RESET_MODULE_USB_PHY);
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mdelay(10);
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}
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void __init ar71xx_add_device_usb(void)
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{
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switch (ar71xx_soc) {
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case AR71XX_SOC_AR7130:
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case AR71XX_SOC_AR7141:
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case AR71XX_SOC_AR7161:
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ar71xx_usb_setup();
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platform_device_register(&ar71xx_ohci_device);
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platform_device_register(&ar71xx_ehci_device);
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break;
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case AR71XX_SOC_AR9130:
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case AR71XX_SOC_AR9132:
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ar91xx_usb_setup();
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ar71xx_ehci_data.is_ar91xx = 1;
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platform_device_register(&ar71xx_ehci_device);
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break;
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default:
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BUG();
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}
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}
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#ifndef CONFIG_AR71XX_EARLY_SERIAL
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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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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 void ar71xx_set_pll(u32 cfg_reg, u32 pll_reg, u32 pll_val, u32 shift)
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{
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void __iomem *base;
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u32 t;
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base = ioremap_nocache(AR71XX_PLL_BASE, AR71XX_PLL_SIZE);
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t = __raw_readl(base + cfg_reg);
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t &= ~(3 << shift);
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t |= (2 << shift);
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__raw_writel(t, base + cfg_reg);
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udelay(100);
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__raw_writel(pll_val, base + pll_reg);
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t |= (3 << shift);
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__raw_writel(t, base + cfg_reg);
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udelay(100);
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t &= ~(3 << shift);
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__raw_writel(t, base + cfg_reg);
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udelay(100);
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printk(KERN_DEBUG "ar71xx: pll_reg %#x: %#x\n",
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(unsigned int)(base + pll_reg), __raw_readl(base + pll_reg));
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iounmap(base);
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}
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static void ar71xx_set_pll_ge0(u32 val)
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{
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ar71xx_set_pll(AR71XX_PLL_REG_SEC_CONFIG, AR71XX_PLL_REG_ETH0_INT_CLOCK,
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val, AR71XX_ETH0_PLL_SHIFT);
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}
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static void ar71xx_set_pll_ge1(u32 val)
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{
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ar71xx_set_pll(AR71XX_PLL_REG_SEC_CONFIG, AR71XX_PLL_REG_ETH1_INT_CLOCK,
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val, AR71XX_ETH1_PLL_SHIFT);
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}
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static void ar91xx_set_pll_ge0(u32 val)
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{
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ar71xx_set_pll(AR91XX_PLL_REG_ETH_CONFIG, AR91XX_PLL_REG_ETH0_INT_CLOCK,
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val, AR91XX_ETH0_PLL_SHIFT);
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}
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static void ar91xx_set_pll_ge1(u32 val)
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{
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ar71xx_set_pll(AR91XX_PLL_REG_ETH_CONFIG, AR91XX_PLL_REG_ETH1_INT_CLOCK,
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val, AR91XX_ETH1_PLL_SHIFT);
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}
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static void ar71xx_ddr_flush_ge0(void)
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{
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ar71xx_ddr_flush(AR71XX_DDR_REG_FLUSH_GE0);
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}
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static void ar71xx_ddr_flush_ge1(void)
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{
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ar71xx_ddr_flush(AR71XX_DDR_REG_FLUSH_GE1);
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}
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static void ar91xx_ddr_flush_ge0(void)
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{
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ar71xx_ddr_flush(AR91XX_DDR_REG_FLUSH_GE0);
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}
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static void ar91xx_ddr_flush_ge1(void)
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{
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ar71xx_ddr_flush(AR91XX_DDR_REG_FLUSH_GE1);
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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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struct ag71xx_platform_data ar71xx_eth0_data = {
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.reset_bit = RESET_MODULE_GE0_MAC,
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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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struct ag71xx_platform_data ar71xx_eth1_data = {
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.reset_bit = RESET_MODULE_GE1_MAC,
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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)
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{
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struct platform_device *pdev;
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struct ag71xx_platform_data *pdata;
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switch (id) {
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case 0:
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switch (ar71xx_eth0_data.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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printk(KERN_ERR "ar71xx: invalid PHY interface mode "
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"for eth0\n");
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return;
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}
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pdev = &ar71xx_eth0_device;
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break;
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case 1:
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switch (ar71xx_eth1_data.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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printk(KERN_ERR "ar71xx: invalid PHY interface mode "
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"for eth1\n");
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return;
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}
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pdev = &ar71xx_eth1_device;
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break;
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default:
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printk(KERN_ERR "ar71xx: invalid ethernet id %d\n", id);
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return;
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}
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pdata = pdev->dev.platform_data;
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switch (ar71xx_soc) {
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case AR71XX_SOC_AR7130:
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pdata->ddr_flush = id ? ar71xx_ddr_flush_ge1
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: ar71xx_ddr_flush_ge0;
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pdata->set_pll = id ? ar71xx_set_pll_ge1
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: ar71xx_set_pll_ge0;
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break;
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case AR71XX_SOC_AR7141:
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case AR71XX_SOC_AR7161:
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pdata->ddr_flush = id ? ar71xx_ddr_flush_ge1
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: ar71xx_ddr_flush_ge0;
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pdata->set_pll = id ? ar71xx_set_pll_ge1
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: ar71xx_set_pll_ge0;
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pdata->has_gbit = 1;
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break;
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case AR71XX_SOC_AR9130:
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pdata->ddr_flush = id ? ar91xx_ddr_flush_ge1
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: ar91xx_ddr_flush_ge0;
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pdata->set_pll = id ? ar91xx_set_pll_ge1
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: ar91xx_set_pll_ge0;
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pdata->is_ar91xx = 1;
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break;
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case AR71XX_SOC_AR9132:
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pdata->ddr_flush = id ? ar91xx_ddr_flush_ge1
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: ar91xx_ddr_flush_ge0;
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pdata->set_pll = id ? ar91xx_set_pll_ge1
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: ar91xx_set_pll_ge0;
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pdata->is_ar91xx = 1;
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pdata->has_gbit = 1;
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break;
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default:
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BUG();
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}
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switch (pdata->phy_if_mode) {
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case PHY_INTERFACE_MODE_GMII:
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case PHY_INTERFACE_MODE_RGMII:
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if (!pdata->has_gbit) {
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printk(KERN_ERR "ar71xx: no gbit available on eth%d\n",
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id);
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return;
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}
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/* fallthrough */
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default:
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break;
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}
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if (is_valid_ether_addr(ar71xx_mac_base)) {
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memcpy(pdata->mac_addr, ar71xx_mac_base, ETH_ALEN);
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pdata->mac_addr[5] += ar71xx_eth_instance;
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} else {
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random_ether_addr(pdata->mac_addr);
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printk(KERN_DEBUG
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"ar71xx: using random MAC address for eth%d\n",
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ar71xx_eth_instance);
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}
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platform_device_register(pdev);
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ar71xx_eth_instance++;
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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,
|
|
unsigned n)
|
|
{
|
|
spi_register_board_info(info, n);
|
|
ar71xx_spi_device.dev.platform_data = pdata;
|
|
platform_device_register(&ar71xx_spi_device);
|
|
}
|
|
|
|
void __init ar71xx_add_device_leds_gpio(int id, unsigned num_leds,
|
|
struct gpio_led *leds)
|
|
{
|
|
struct platform_device *pdev;
|
|
struct gpio_led_platform_data pdata;
|
|
struct gpio_led *p;
|
|
int err;
|
|
|
|
p = kmalloc(num_leds * sizeof(*p), GFP_KERNEL);
|
|
if (!p)
|
|
return;
|
|
|
|
memcpy(p, leds, num_leds * sizeof(*p));
|
|
|
|
pdev = platform_device_alloc("leds-gpio", id);
|
|
if (!pdev)
|
|
goto err_free_leds;
|
|
|
|
memset(&pdata, 0, sizeof(pdata));
|
|
pdata.num_leds = num_leds;
|
|
pdata.leds = p;
|
|
|
|
err = platform_device_add_data(pdev, &pdata, sizeof(pdata));
|
|
if (err)
|
|
goto err_put_pdev;
|
|
|
|
err = platform_device_add(pdev);
|
|
if (err)
|
|
goto err_put_pdev;
|
|
|
|
return;
|
|
|
|
err_put_pdev:
|
|
platform_device_put(pdev);
|
|
|
|
err_free_leds:
|
|
kfree(p);
|
|
}
|
|
|
|
void __init ar71xx_add_device_gpio_buttons(int id,
|
|
unsigned poll_interval,
|
|
unsigned nbuttons,
|
|
struct gpio_button *buttons)
|
|
{
|
|
struct platform_device *pdev;
|
|
struct gpio_buttons_platform_data pdata;
|
|
struct gpio_button *p;
|
|
int err;
|
|
|
|
p = kmalloc(nbuttons * sizeof(*p), GFP_KERNEL);
|
|
if (!p)
|
|
return;
|
|
|
|
memcpy(p, buttons, nbuttons * sizeof(*p));
|
|
|
|
pdev = platform_device_alloc("gpio-buttons", id);
|
|
if (!pdev)
|
|
goto err_free_buttons;
|
|
|
|
memset(&pdata, 0, sizeof(pdata));
|
|
pdata.poll_interval = poll_interval;
|
|
pdata.nbuttons = nbuttons;
|
|
pdata.buttons = p;
|
|
|
|
err = platform_device_add_data(pdev, &pdata, sizeof(pdata));
|
|
if (err)
|
|
goto err_put_pdev;
|
|
|
|
|
|
err = platform_device_add(pdev);
|
|
if (err)
|
|
goto err_put_pdev;
|
|
|
|
return;
|
|
|
|
err_put_pdev:
|
|
platform_device_put(pdev);
|
|
|
|
err_free_buttons:
|
|
kfree(p);
|
|
}
|
|
|
|
void __init ar71xx_add_device_wdt(void)
|
|
{
|
|
platform_device_register_simple("ar71xx-wdt", -1, NULL, 0);
|
|
}
|
|
|
|
void __init ar71xx_set_mac_base(unsigned char *mac)
|
|
{
|
|
memcpy(ar71xx_mac_base, mac, ETH_ALEN);
|
|
}
|
|
|
|
void __init ar71xx_parse_mac_addr(char *mac_str)
|
|
{
|
|
u8 tmp[ETH_ALEN];
|
|
int t;
|
|
|
|
t = sscanf(mac_str, "%02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx",
|
|
&tmp[0], &tmp[1], &tmp[2], &tmp[3], &tmp[4], &tmp[5]);
|
|
|
|
if (t != ETH_ALEN)
|
|
t = sscanf(mac_str, "%02hhx.%02hhx.%02hhx.%02hhx.%02hhx.%02hhx",
|
|
&tmp[0], &tmp[1], &tmp[2], &tmp[3], &tmp[4], &tmp[5]);
|
|
|
|
if (t == ETH_ALEN)
|
|
ar71xx_set_mac_base(tmp);
|
|
else
|
|
printk(KERN_DEBUG "ar71xx: failed to parse mac address "
|
|
"\"%s\"\n", mac_str);
|
|
}
|
|
|
|
static struct resource ar91xx_wmac_resources[] = {
|
|
{
|
|
.start = AR91XX_WMAC_BASE,
|
|
.end = AR91XX_WMAC_BASE + AR91XX_WMAC_SIZE - 1,
|
|
.flags = IORESOURCE_MEM,
|
|
}, {
|
|
.start = AR71XX_CPU_IRQ_WMAC,
|
|
.end = AR71XX_CPU_IRQ_WMAC,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
|
|
static struct ath9k_platform_data ar91xx_wmac_data;
|
|
|
|
static struct platform_device ar91xx_wmac_device = {
|
|
.name = "ath9k",
|
|
.id = -1,
|
|
.resource = ar91xx_wmac_resources,
|
|
.num_resources = ARRAY_SIZE(ar91xx_wmac_resources),
|
|
.dev = {
|
|
.platform_data = &ar91xx_wmac_data,
|
|
},
|
|
};
|
|
|
|
void __init ar91xx_add_device_wmac(void)
|
|
{
|
|
u8 *ee = (u8 *) KSEG1ADDR(0x1fff1000);
|
|
|
|
memcpy(ar91xx_wmac_data.eeprom_data, ee,
|
|
sizeof(ar91xx_wmac_data.eeprom_data));
|
|
|
|
ar71xx_device_stop(RESET_MODULE_AMBA2WMAC);
|
|
mdelay(10);
|
|
|
|
ar71xx_device_start(RESET_MODULE_AMBA2WMAC);
|
|
mdelay(10);
|
|
|
|
platform_device_register(&ar91xx_wmac_device);
|
|
}
|
|
|
|
static struct platform_device ar71xx_dsa_switch_device = {
|
|
.name = "dsa",
|
|
.id = 0,
|
|
};
|
|
|
|
void __init ar71xx_add_device_dsa(unsigned int id,
|
|
struct dsa_platform_data *d)
|
|
{
|
|
switch (id) {
|
|
case 0:
|
|
d->netdev = &ar71xx_eth0_device.dev;
|
|
break;
|
|
case 1:
|
|
d->netdev = &ar71xx_eth1_device.dev;
|
|
break;
|
|
default:
|
|
printk(KERN_ERR
|
|
"ar71xx: invalid ethernet id %d for DSA switch\n",
|
|
id);
|
|
return;
|
|
}
|
|
d->mii_bus = &ar71xx_mdio_device.dev;
|
|
ar71xx_dsa_switch_device.dev.platform_data = d;
|
|
|
|
platform_device_register(&ar71xx_dsa_switch_device);
|
|
}
|