diff options
Diffstat (limited to 'arch/mips/ath79/irq.c')
| -rw-r--r-- | arch/mips/ath79/irq.c | 169 |
1 files changed, 0 insertions, 169 deletions
diff --git a/arch/mips/ath79/irq.c b/arch/mips/ath79/irq.c deleted file mode 100644 index 2dfff1f19004..000000000000 --- a/arch/mips/ath79/irq.c +++ /dev/null @@ -1,169 +0,0 @@ -/* - * Atheros AR71xx/AR724x/AR913x specific interrupt handling - * - * Copyright (C) 2010-2011 Jaiganesh Narayanan <jnarayanan@atheros.com> - * Copyright (C) 2008-2011 Gabor Juhos <juhosg@openwrt.org> - * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org> - * - * Parts of this file are based on Atheros' 2.6.15/2.6.31 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/interrupt.h> -#include <linux/irqchip.h> -#include <linux/of_irq.h> - -#include <asm/irq_cpu.h> -#include <asm/mipsregs.h> - -#include <asm/mach-ath79/ath79.h> -#include <asm/mach-ath79/ar71xx_regs.h> -#include "common.h" -#include "machtypes.h" - - -static void ar934x_ip2_irq_dispatch(struct irq_desc *desc) -{ - u32 status; - - status = ath79_reset_rr(AR934X_RESET_REG_PCIE_WMAC_INT_STATUS); - - if (status & AR934X_PCIE_WMAC_INT_PCIE_ALL) { - ath79_ddr_wb_flush(3); - generic_handle_irq(ATH79_IP2_IRQ(0)); - } else if (status & AR934X_PCIE_WMAC_INT_WMAC_ALL) { - ath79_ddr_wb_flush(4); - generic_handle_irq(ATH79_IP2_IRQ(1)); - } else { - spurious_interrupt(); - } -} - -static void ar934x_ip2_irq_init(void) -{ - int i; - - for (i = ATH79_IP2_IRQ_BASE; - i < ATH79_IP2_IRQ_BASE + ATH79_IP2_IRQ_COUNT; i++) - irq_set_chip_and_handler(i, &dummy_irq_chip, - handle_level_irq); - - irq_set_chained_handler(ATH79_CPU_IRQ(2), ar934x_ip2_irq_dispatch); -} - -static void qca955x_ip2_irq_dispatch(struct irq_desc *desc) -{ - u32 status; - - status = ath79_reset_rr(QCA955X_RESET_REG_EXT_INT_STATUS); - status &= QCA955X_EXT_INT_PCIE_RC1_ALL | QCA955X_EXT_INT_WMAC_ALL; - - if (status == 0) { - spurious_interrupt(); - return; - } - - if (status & QCA955X_EXT_INT_PCIE_RC1_ALL) { - /* TODO: flush DDR? */ - generic_handle_irq(ATH79_IP2_IRQ(0)); - } - - if (status & QCA955X_EXT_INT_WMAC_ALL) { - /* TODO: flush DDR? */ - generic_handle_irq(ATH79_IP2_IRQ(1)); - } -} - -static void qca955x_ip3_irq_dispatch(struct irq_desc *desc) -{ - u32 status; - - status = ath79_reset_rr(QCA955X_RESET_REG_EXT_INT_STATUS); - status &= QCA955X_EXT_INT_PCIE_RC2_ALL | - QCA955X_EXT_INT_USB1 | - QCA955X_EXT_INT_USB2; - - if (status == 0) { - spurious_interrupt(); - return; - } - - if (status & QCA955X_EXT_INT_USB1) { - /* TODO: flush DDR? */ - generic_handle_irq(ATH79_IP3_IRQ(0)); - } - - if (status & QCA955X_EXT_INT_USB2) { - /* TODO: flush DDR? */ - generic_handle_irq(ATH79_IP3_IRQ(1)); - } - - if (status & QCA955X_EXT_INT_PCIE_RC2_ALL) { - /* TODO: flush DDR? */ - generic_handle_irq(ATH79_IP3_IRQ(2)); - } -} - -static void qca955x_irq_init(void) -{ - int i; - - for (i = ATH79_IP2_IRQ_BASE; - i < ATH79_IP2_IRQ_BASE + ATH79_IP2_IRQ_COUNT; i++) - irq_set_chip_and_handler(i, &dummy_irq_chip, - handle_level_irq); - - irq_set_chained_handler(ATH79_CPU_IRQ(2), qca955x_ip2_irq_dispatch); - - for (i = ATH79_IP3_IRQ_BASE; - i < ATH79_IP3_IRQ_BASE + ATH79_IP3_IRQ_COUNT; i++) - irq_set_chip_and_handler(i, &dummy_irq_chip, - handle_level_irq); - - irq_set_chained_handler(ATH79_CPU_IRQ(3), qca955x_ip3_irq_dispatch); -} - -void __init arch_init_irq(void) -{ - unsigned irq_wb_chan2 = -1; - unsigned irq_wb_chan3 = -1; - bool misc_is_ar71xx; - - if (mips_machtype == ATH79_MACH_GENERIC_OF) { - irqchip_init(); - return; - } - - if (soc_is_ar71xx() || soc_is_ar724x() || - soc_is_ar913x() || soc_is_ar933x()) { - irq_wb_chan2 = 3; - irq_wb_chan3 = 2; - } else if (soc_is_ar934x()) { - irq_wb_chan3 = 2; - } - - ath79_cpu_irq_init(irq_wb_chan2, irq_wb_chan3); - - if (soc_is_ar71xx() || soc_is_ar913x()) - misc_is_ar71xx = true; - else if (soc_is_ar724x() || - soc_is_ar933x() || - soc_is_ar934x() || - soc_is_qca955x()) - misc_is_ar71xx = false; - else - BUG(); - ath79_misc_irq_init( - ath79_reset_base + AR71XX_RESET_REG_MISC_INT_STATUS, - ATH79_CPU_IRQ(6), ATH79_MISC_IRQ_BASE, misc_is_ar71xx); - - if (soc_is_ar934x()) - ar934x_ip2_irq_init(); - else if (soc_is_qca955x()) - qca955x_irq_init(); -} |