diff options
Diffstat (limited to 'target/linux/ar71xx/files-2.6.39/arch/mips/ar71xx/ar71xx.c')
| -rw-r--r-- | target/linux/ar71xx/files-2.6.39/arch/mips/ar71xx/ar71xx.c | 278 |
1 files changed, 278 insertions, 0 deletions
diff --git a/target/linux/ar71xx/files-2.6.39/arch/mips/ar71xx/ar71xx.c b/target/linux/ar71xx/files-2.6.39/arch/mips/ar71xx/ar71xx.c new file mode 100644 index 0000000000..93cbe5331f --- /dev/null +++ b/target/linux/ar71xx/files-2.6.39/arch/mips/ar71xx/ar71xx.c @@ -0,0 +1,278 @@ +/* + * AR71xx SoC routines + * + * Copyright (C) 2008-2009 Gabor Juhos <juhosg@openwrt.org> + * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org> + * + * 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/module.h> +#include <linux/types.h> +#include <linux/mutex.h> +#include <linux/spinlock.h> + +#include <asm/mach-ar71xx/ar71xx.h> + +static DEFINE_MUTEX(ar71xx_flash_mutex); +static DEFINE_SPINLOCK(ar71xx_device_lock); + +void __iomem *ar71xx_ddr_base; +EXPORT_SYMBOL_GPL(ar71xx_ddr_base); + +void __iomem *ar71xx_pll_base; +EXPORT_SYMBOL_GPL(ar71xx_pll_base); + +void __iomem *ar71xx_reset_base; +EXPORT_SYMBOL_GPL(ar71xx_reset_base); + +void __iomem *ar71xx_gpio_base; +EXPORT_SYMBOL_GPL(ar71xx_gpio_base); + +void __iomem *ar71xx_usb_ctrl_base; +EXPORT_SYMBOL_GPL(ar71xx_usb_ctrl_base); + +void ar71xx_device_stop(u32 mask) +{ + unsigned long flags; + u32 mask_inv; + u32 t; + + switch (ar71xx_soc) { + case AR71XX_SOC_AR7130: + case AR71XX_SOC_AR7141: + case AR71XX_SOC_AR7161: + spin_lock_irqsave(&ar71xx_device_lock, flags); + t = ar71xx_reset_rr(AR71XX_RESET_REG_RESET_MODULE); + ar71xx_reset_wr(AR71XX_RESET_REG_RESET_MODULE, t | mask); + spin_unlock_irqrestore(&ar71xx_device_lock, flags); + break; + + case AR71XX_SOC_AR7240: + case AR71XX_SOC_AR7241: + case AR71XX_SOC_AR7242: + mask_inv = mask & RESET_MODULE_USB_OHCI_DLL_7240; + spin_lock_irqsave(&ar71xx_device_lock, flags); + t = ar71xx_reset_rr(AR724X_RESET_REG_RESET_MODULE); + t |= mask; + t &= ~mask_inv; + ar71xx_reset_wr(AR724X_RESET_REG_RESET_MODULE, t); + spin_unlock_irqrestore(&ar71xx_device_lock, flags); + break; + + case AR71XX_SOC_AR9130: + case AR71XX_SOC_AR9132: + spin_lock_irqsave(&ar71xx_device_lock, flags); + t = ar71xx_reset_rr(AR91XX_RESET_REG_RESET_MODULE); + ar71xx_reset_wr(AR91XX_RESET_REG_RESET_MODULE, t | mask); + spin_unlock_irqrestore(&ar71xx_device_lock, flags); + break; + + case AR71XX_SOC_AR9330: + case AR71XX_SOC_AR9331: + spin_lock_irqsave(&ar71xx_device_lock, flags); + t = ar71xx_reset_rr(AR933X_RESET_REG_RESET_MODULE); + ar71xx_reset_wr(AR933X_RESET_REG_RESET_MODULE, t | mask); + spin_unlock_irqrestore(&ar71xx_device_lock, flags); + break; + + case AR71XX_SOC_AR9341: + case AR71XX_SOC_AR9342: + case AR71XX_SOC_AR9344: + spin_lock_irqsave(&ar71xx_device_lock, flags); + t = ar71xx_reset_rr(AR934X_RESET_REG_RESET_MODULE); + ar71xx_reset_wr(AR934X_RESET_REG_RESET_MODULE, t | mask); + spin_unlock_irqrestore(&ar71xx_device_lock, flags); + break; + + default: + BUG(); + } +} +EXPORT_SYMBOL_GPL(ar71xx_device_stop); + +void ar71xx_device_start(u32 mask) +{ + unsigned long flags; + u32 mask_inv; + u32 t; + + switch (ar71xx_soc) { + case AR71XX_SOC_AR7130: + case AR71XX_SOC_AR7141: + case AR71XX_SOC_AR7161: + spin_lock_irqsave(&ar71xx_device_lock, flags); + t = ar71xx_reset_rr(AR71XX_RESET_REG_RESET_MODULE); + ar71xx_reset_wr(AR71XX_RESET_REG_RESET_MODULE, t & ~mask); + spin_unlock_irqrestore(&ar71xx_device_lock, flags); + break; + + case AR71XX_SOC_AR7240: + case AR71XX_SOC_AR7241: + case AR71XX_SOC_AR7242: + mask_inv = mask & RESET_MODULE_USB_OHCI_DLL_7240; + spin_lock_irqsave(&ar71xx_device_lock, flags); + t = ar71xx_reset_rr(AR724X_RESET_REG_RESET_MODULE); + t &= ~mask; + t |= mask_inv; + ar71xx_reset_wr(AR724X_RESET_REG_RESET_MODULE, t); + spin_unlock_irqrestore(&ar71xx_device_lock, flags); + break; + + case AR71XX_SOC_AR9130: + case AR71XX_SOC_AR9132: + spin_lock_irqsave(&ar71xx_device_lock, flags); + t = ar71xx_reset_rr(AR91XX_RESET_REG_RESET_MODULE); + ar71xx_reset_wr(AR91XX_RESET_REG_RESET_MODULE, t & ~mask); + spin_unlock_irqrestore(&ar71xx_device_lock, flags); + break; + + case AR71XX_SOC_AR9330: + case AR71XX_SOC_AR9331: + spin_lock_irqsave(&ar71xx_device_lock, flags); + t = ar71xx_reset_rr(AR933X_RESET_REG_RESET_MODULE); + ar71xx_reset_wr(AR933X_RESET_REG_RESET_MODULE, t & ~mask); + spin_unlock_irqrestore(&ar71xx_device_lock, flags); + break; + + case AR71XX_SOC_AR9341: + case AR71XX_SOC_AR9342: + case AR71XX_SOC_AR9344: + spin_lock_irqsave(&ar71xx_device_lock, flags); + t = ar71xx_reset_rr(AR934X_RESET_REG_RESET_MODULE); + ar71xx_reset_wr(AR934X_RESET_REG_RESET_MODULE, t & ~mask); + spin_unlock_irqrestore(&ar71xx_device_lock, flags); + break; + + default: + BUG(); + } +} +EXPORT_SYMBOL_GPL(ar71xx_device_start); + +void ar71xx_device_reset_rmw(u32 clear, u32 set) +{ + unsigned long flags; + unsigned int reg; + u32 t; + + switch (ar71xx_soc) { + case AR71XX_SOC_AR7130: + case AR71XX_SOC_AR7141: + case AR71XX_SOC_AR7161: + reg = AR71XX_RESET_REG_RESET_MODULE; + break; + + case AR71XX_SOC_AR7240: + case AR71XX_SOC_AR7241: + case AR71XX_SOC_AR7242: + reg = AR724X_RESET_REG_RESET_MODULE; + break; + + case AR71XX_SOC_AR9130: + case AR71XX_SOC_AR9132: + reg = AR91XX_RESET_REG_RESET_MODULE; + break; + + case AR71XX_SOC_AR9330: + case AR71XX_SOC_AR9331: + reg = AR933X_RESET_REG_RESET_MODULE; + break; + + case AR71XX_SOC_AR9341: + case AR71XX_SOC_AR9342: + case AR71XX_SOC_AR9344: + reg = AR934X_RESET_REG_RESET_MODULE; + break; + + default: + BUG(); + } + + spin_lock_irqsave(&ar71xx_device_lock, flags); + t = ar71xx_reset_rr(reg); + t &= ~clear; + t |= set; + ar71xx_reset_wr(reg, t); + spin_unlock_irqrestore(&ar71xx_device_lock, flags); +} +EXPORT_SYMBOL_GPL(ar71xx_device_reset_rmw); + +int ar71xx_device_stopped(u32 mask) +{ + unsigned long flags; + u32 t; + + switch (ar71xx_soc) { + case AR71XX_SOC_AR7130: + case AR71XX_SOC_AR7141: + case AR71XX_SOC_AR7161: + spin_lock_irqsave(&ar71xx_device_lock, flags); + t = ar71xx_reset_rr(AR71XX_RESET_REG_RESET_MODULE); + spin_unlock_irqrestore(&ar71xx_device_lock, flags); + break; + + case AR71XX_SOC_AR7240: + case AR71XX_SOC_AR7241: + case AR71XX_SOC_AR7242: + spin_lock_irqsave(&ar71xx_device_lock, flags); + t = ar71xx_reset_rr(AR724X_RESET_REG_RESET_MODULE); + spin_unlock_irqrestore(&ar71xx_device_lock, flags); + break; + + case AR71XX_SOC_AR9130: + case AR71XX_SOC_AR9132: + spin_lock_irqsave(&ar71xx_device_lock, flags); + t = ar71xx_reset_rr(AR91XX_RESET_REG_RESET_MODULE); + spin_unlock_irqrestore(&ar71xx_device_lock, flags); + break; + + case AR71XX_SOC_AR9330: + case AR71XX_SOC_AR9331: + spin_lock_irqsave(&ar71xx_device_lock, flags); + t = ar71xx_reset_rr(AR933X_RESET_REG_RESET_MODULE); + spin_unlock_irqrestore(&ar71xx_device_lock, flags); + break; + + case AR71XX_SOC_AR9341: + case AR71XX_SOC_AR9342: + case AR71XX_SOC_AR9344: + spin_lock_irqsave(&ar71xx_device_lock, flags); + t = ar71xx_reset_rr(AR934X_RESET_REG_RESET_MODULE); + spin_unlock_irqrestore(&ar71xx_device_lock, flags); + break; + + default: + BUG(); + } + + return ((t & mask) == mask); +} +EXPORT_SYMBOL_GPL(ar71xx_device_stopped); + +void ar71xx_ddr_flush(u32 reg) +{ + ar71xx_ddr_wr(reg, 1); + while ((ar71xx_ddr_rr(reg) & 0x1)) + ; + + ar71xx_ddr_wr(reg, 1); + while ((ar71xx_ddr_rr(reg) & 0x1)) + ; +} +EXPORT_SYMBOL_GPL(ar71xx_ddr_flush); + +void ar71xx_flash_acquire(void) +{ + mutex_lock(&ar71xx_flash_mutex); +} +EXPORT_SYMBOL_GPL(ar71xx_flash_acquire); + +void ar71xx_flash_release(void) +{ + mutex_unlock(&ar71xx_flash_mutex); +} +EXPORT_SYMBOL_GPL(ar71xx_flash_release); |