diff options
Diffstat (limited to 'arch/blackfin/mach-bf537/ints-priority.c')
| -rw-r--r-- | arch/blackfin/mach-bf537/ints-priority.c | 214 |
1 files changed, 0 insertions, 214 deletions
diff --git a/arch/blackfin/mach-bf537/ints-priority.c b/arch/blackfin/mach-bf537/ints-priority.c deleted file mode 100644 index a48baae4384d..000000000000 --- a/arch/blackfin/mach-bf537/ints-priority.c +++ /dev/null @@ -1,214 +0,0 @@ -/* - * Copyright 2005-2009 Analog Devices Inc. - * - * Licensed under the GPL-2 or later. - * - * Set up the interrupt priorities - */ - -#include <linux/module.h> -#include <linux/irq.h> -#include <asm/blackfin.h> - -#include <asm/irq_handler.h> -#include <asm/bfin5xx_spi.h> -#include <asm/bfin_sport.h> -#include <asm/bfin_can.h> -#include <asm/bfin_dma.h> -#include <asm/dpmc.h> - -void __init program_IAR(void) -{ - /* Program the IAR0 Register with the configured priority */ - bfin_write_SIC_IAR0(((CONFIG_IRQ_PLL_WAKEUP - 7) << IRQ_PLL_WAKEUP_POS) | - ((CONFIG_IRQ_DMA_ERROR - 7) << IRQ_DMA_ERROR_POS) | - ((CONFIG_IRQ_ERROR - 7) << IRQ_ERROR_POS) | - ((CONFIG_IRQ_RTC - 7) << IRQ_RTC_POS) | - ((CONFIG_IRQ_PPI - 7) << IRQ_PPI_POS) | - ((CONFIG_IRQ_SPORT0_RX - 7) << IRQ_SPORT0_RX_POS) | - ((CONFIG_IRQ_SPORT0_TX - 7) << IRQ_SPORT0_TX_POS) | - ((CONFIG_IRQ_SPORT1_RX - 7) << IRQ_SPORT1_RX_POS)); - - bfin_write_SIC_IAR1(((CONFIG_IRQ_SPORT1_TX - 7) << IRQ_SPORT1_TX_POS) | - ((CONFIG_IRQ_TWI - 7) << IRQ_TWI_POS) | - ((CONFIG_IRQ_SPI - 7) << IRQ_SPI_POS) | - ((CONFIG_IRQ_UART0_RX - 7) << IRQ_UART0_RX_POS) | - ((CONFIG_IRQ_UART0_TX - 7) << IRQ_UART0_TX_POS) | - ((CONFIG_IRQ_UART1_RX - 7) << IRQ_UART1_RX_POS) | - ((CONFIG_IRQ_UART1_TX - 7) << IRQ_UART1_TX_POS) | - ((CONFIG_IRQ_CAN_RX - 7) << IRQ_CAN_RX_POS)); - - bfin_write_SIC_IAR2(((CONFIG_IRQ_CAN_TX - 7) << IRQ_CAN_TX_POS) | - ((CONFIG_IRQ_MAC_RX - 7) << IRQ_MAC_RX_POS) | - ((CONFIG_IRQ_MAC_TX - 7) << IRQ_MAC_TX_POS) | - ((CONFIG_IRQ_TIMER0 - 7) << IRQ_TIMER0_POS) | - ((CONFIG_IRQ_TIMER1 - 7) << IRQ_TIMER1_POS) | - ((CONFIG_IRQ_TIMER2 - 7) << IRQ_TIMER2_POS) | - ((CONFIG_IRQ_TIMER3 - 7) << IRQ_TIMER3_POS) | - ((CONFIG_IRQ_TIMER4 - 7) << IRQ_TIMER4_POS)); - - bfin_write_SIC_IAR3(((CONFIG_IRQ_TIMER5 - 7) << IRQ_TIMER5_POS) | - ((CONFIG_IRQ_TIMER6 - 7) << IRQ_TIMER6_POS) | - ((CONFIG_IRQ_TIMER7 - 7) << IRQ_TIMER7_POS) | - ((CONFIG_IRQ_PROG_INTA - 7) << IRQ_PROG_INTA_POS) | - ((CONFIG_IRQ_PORTG_INTB - 7) << IRQ_PORTG_INTB_POS) | - ((CONFIG_IRQ_MEM_DMA0 - 7) << IRQ_MEM_DMA0_POS) | - ((CONFIG_IRQ_MEM_DMA1 - 7) << IRQ_MEM_DMA1_POS) | - ((CONFIG_IRQ_WATCH - 7) << IRQ_WATCH_POS)); - - SSYNC(); -} - -#define SPI_ERR_MASK (BIT_STAT_TXCOL | BIT_STAT_RBSY | BIT_STAT_MODF | BIT_STAT_TXE) /* SPI_STAT */ -#define SPORT_ERR_MASK (ROVF | RUVF | TOVF | TUVF) /* SPORT_STAT */ -#define PPI_ERR_MASK (0xFFFF & ~FLD) /* PPI_STATUS */ -#define EMAC_ERR_MASK (PHYINT | MMCINT | RXFSINT | TXFSINT | WAKEDET | RXDMAERR | TXDMAERR | STMDONE) /* EMAC_SYSTAT */ -#define UART_ERR_MASK (0x6) /* UART_IIR */ -#define CAN_ERR_MASK (EWTIF | EWRIF | EPIF | BOIF | WUIF | UIAIF | AAIF | RMLIF | UCEIF | EXTIF | ADIF) /* CAN_GIF */ - -static int error_int_mask; - -static void bf537_generic_error_mask_irq(struct irq_data *d) -{ - error_int_mask &= ~(1L << (d->irq - IRQ_PPI_ERROR)); - if (!error_int_mask) - bfin_internal_mask_irq(IRQ_GENERIC_ERROR); -} - -static void bf537_generic_error_unmask_irq(struct irq_data *d) -{ - bfin_internal_unmask_irq(IRQ_GENERIC_ERROR); - error_int_mask |= 1L << (d->irq - IRQ_PPI_ERROR); -} - -static struct irq_chip bf537_generic_error_irqchip = { - .name = "ERROR", - .irq_ack = bfin_ack_noop, - .irq_mask_ack = bf537_generic_error_mask_irq, - .irq_mask = bf537_generic_error_mask_irq, - .irq_unmask = bf537_generic_error_unmask_irq, -}; - -static void bf537_demux_error_irq(struct irq_desc *inta_desc) -{ - int irq = 0; - -#if (defined(CONFIG_BF537) || defined(CONFIG_BF536)) - if (bfin_read_EMAC_SYSTAT() & EMAC_ERR_MASK) - irq = IRQ_MAC_ERROR; - else -#endif - if (bfin_read_SPORT0_STAT() & SPORT_ERR_MASK) - irq = IRQ_SPORT0_ERROR; - else if (bfin_read_SPORT1_STAT() & SPORT_ERR_MASK) - irq = IRQ_SPORT1_ERROR; - else if (bfin_read_PPI_STATUS() & PPI_ERR_MASK) - irq = IRQ_PPI_ERROR; - else if (bfin_read_CAN_GIF() & CAN_ERR_MASK) - irq = IRQ_CAN_ERROR; - else if (bfin_read_SPI_STAT() & SPI_ERR_MASK) - irq = IRQ_SPI_ERROR; - else if ((bfin_read_UART0_IIR() & UART_ERR_MASK) == UART_ERR_MASK) - irq = IRQ_UART0_ERROR; - else if ((bfin_read_UART1_IIR() & UART_ERR_MASK) == UART_ERR_MASK) - irq = IRQ_UART1_ERROR; - - if (irq) { - if (error_int_mask & (1L << (irq - IRQ_PPI_ERROR))) - bfin_handle_irq(irq); - else { - - switch (irq) { - case IRQ_PPI_ERROR: - bfin_write_PPI_STATUS(PPI_ERR_MASK); - break; -#if (defined(CONFIG_BF537) || defined(CONFIG_BF536)) - case IRQ_MAC_ERROR: - bfin_write_EMAC_SYSTAT(EMAC_ERR_MASK); - break; -#endif - case IRQ_SPORT0_ERROR: - bfin_write_SPORT0_STAT(SPORT_ERR_MASK); - break; - - case IRQ_SPORT1_ERROR: - bfin_write_SPORT1_STAT(SPORT_ERR_MASK); - break; - - case IRQ_CAN_ERROR: - bfin_write_CAN_GIS(CAN_ERR_MASK); - break; - - case IRQ_SPI_ERROR: - bfin_write_SPI_STAT(SPI_ERR_MASK); - break; - - default: - break; - } - - pr_debug("IRQ %d:" - " MASKED PERIPHERAL ERROR INTERRUPT ASSERTED\n", - irq); - } - } else - pr_err("%s: IRQ ?: PERIPHERAL ERROR INTERRUPT ASSERTED BUT NO SOURCE FOUND\n", - __func__); - -} - -#if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE) -static int mac_rx_int_mask; - -static void bf537_mac_rx_mask_irq(struct irq_data *d) -{ - mac_rx_int_mask &= ~(1L << (d->irq - IRQ_MAC_RX)); - if (!mac_rx_int_mask) - bfin_internal_mask_irq(IRQ_PH_INTA_MAC_RX); -} - -static void bf537_mac_rx_unmask_irq(struct irq_data *d) -{ - bfin_internal_unmask_irq(IRQ_PH_INTA_MAC_RX); - mac_rx_int_mask |= 1L << (d->irq - IRQ_MAC_RX); -} - -static struct irq_chip bf537_mac_rx_irqchip = { - .name = "ERROR", - .irq_ack = bfin_ack_noop, - .irq_mask_ack = bf537_mac_rx_mask_irq, - .irq_mask = bf537_mac_rx_mask_irq, - .irq_unmask = bf537_mac_rx_unmask_irq, -}; - -static void bf537_demux_mac_rx_irq(struct irq_desc *desc) -{ - if (bfin_read_DMA1_IRQ_STATUS() & (DMA_DONE | DMA_ERR)) - bfin_handle_irq(IRQ_MAC_RX); - else - bfin_demux_gpio_irq(desc); -} -#endif - -void __init init_mach_irq(void) -{ - int irq; - -#if defined(CONFIG_BF537) || defined(CONFIG_BF536) - /* Clear EMAC Interrupt Status bits so we can demux it later */ - bfin_write_EMAC_SYSTAT(-1); -#endif - - irq_set_chained_handler(IRQ_GENERIC_ERROR, bf537_demux_error_irq); - for (irq = IRQ_PPI_ERROR; irq <= IRQ_UART1_ERROR; irq++) - irq_set_chip_and_handler(irq, &bf537_generic_error_irqchip, - handle_level_irq); - -#if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE) - irq_set_chained_handler(IRQ_PH_INTA_MAC_RX, bf537_demux_mac_rx_irq); - irq_set_chip_and_handler(IRQ_MAC_RX, &bf537_mac_rx_irqchip, handle_level_irq); - irq_set_chip_and_handler(IRQ_PORTH_INTA, &bf537_mac_rx_irqchip, handle_level_irq); - - irq_set_chained_handler(IRQ_MAC_ERROR, bfin_demux_mac_status_irq); -#endif -} |