diff options
Diffstat (limited to 'arch/mn10300/unit-asb2364')
| -rw-r--r-- | arch/mn10300/unit-asb2364/include/unit/fpga-regs.h | 2 | ||||
| -rw-r--r-- | arch/mn10300/unit-asb2364/include/unit/serial.h | 24 | ||||
| -rw-r--r-- | arch/mn10300/unit-asb2364/irq-fpga.c | 37 | ||||
| -rw-r--r-- | arch/mn10300/unit-asb2364/unit-init.c | 44 |
4 files changed, 81 insertions, 26 deletions
diff --git a/arch/mn10300/unit-asb2364/include/unit/fpga-regs.h b/arch/mn10300/unit-asb2364/include/unit/fpga-regs.h index 7cf12054db65..33f100f9b468 100644 --- a/arch/mn10300/unit-asb2364/include/unit/fpga-regs.h +++ b/arch/mn10300/unit-asb2364/include/unit/fpga-regs.h @@ -14,7 +14,7 @@ #define ASB2364_FPGA_REG_RESET_USB __SYSREG(0xa900130c, u16) #define ASB2364_FPGA_REG_RESET_AV __SYSREG(0xa9001310, u16) -#define ASB2364_FPGA_REG_IRQ(X) __SYSREG(0xa9001590+((X)*4), u16) +#define ASB2364_FPGA_REG_IRQ(X) __SYSREG(0xa9001510+((X)*4), u16) #define ASB2364_FPGA_REG_IRQ_LAN ASB2364_FPGA_REG_IRQ(0) #define ASB2364_FPGA_REG_IRQ_UART ASB2364_FPGA_REG_IRQ(1) #define ASB2364_FPGA_REG_IRQ_I2C ASB2364_FPGA_REG_IRQ(2) diff --git a/arch/mn10300/unit-asb2364/include/unit/serial.h b/arch/mn10300/unit-asb2364/include/unit/serial.h index 7f048bbfdfd7..92f224a97efc 100644 --- a/arch/mn10300/unit-asb2364/include/unit/serial.h +++ b/arch/mn10300/unit-asb2364/include/unit/serial.h @@ -59,18 +59,18 @@ static inline void __debug_to_serial(const char *p, int n) #define SERIAL_PORT_DFNS /* stolen by gdb-stub */ #if defined(CONFIG_GDBSTUB_ON_TTYS0) -#define GDBPORT_SERIAL_RX __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_RX * 4, u8) -#define GDBPORT_SERIAL_TX __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_TX * 4, u8) -#define GDBPORT_SERIAL_DLL __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_DLL * 4, u8) -#define GDBPORT_SERIAL_DLM __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_DLM * 4, u8) -#define GDBPORT_SERIAL_IER __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_IER * 4, u8) -#define GDBPORT_SERIAL_IIR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_IIR * 4, u8) -#define GDBPORT_SERIAL_FCR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_FCR * 4, u8) -#define GDBPORT_SERIAL_LCR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_LCR * 4, u8) -#define GDBPORT_SERIAL_MCR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_MCR * 4, u8) -#define GDBPORT_SERIAL_LSR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_LSR * 4, u8) -#define GDBPORT_SERIAL_MSR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_MSR * 4, u8) -#define GDBPORT_SERIAL_SCR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_SCR * 4, u8) +#define GDBPORT_SERIAL_RX __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_RX * 2, u8) +#define GDBPORT_SERIAL_TX __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_TX * 2, u8) +#define GDBPORT_SERIAL_DLL __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_DLL * 2, u8) +#define GDBPORT_SERIAL_DLM __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_DLM * 2, u8) +#define GDBPORT_SERIAL_IER __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_IER * 2, u8) +#define GDBPORT_SERIAL_IIR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_IIR * 2, u8) +#define GDBPORT_SERIAL_FCR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_FCR * 2, u8) +#define GDBPORT_SERIAL_LCR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_LCR * 2, u8) +#define GDBPORT_SERIAL_MCR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_MCR * 2, u8) +#define GDBPORT_SERIAL_LSR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_LSR * 2, u8) +#define GDBPORT_SERIAL_MSR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_MSR * 2, u8) +#define GDBPORT_SERIAL_SCR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_SCR * 2, u8) #define GDBPORT_SERIAL_IRQ SERIAL_IRQ #elif defined(CONFIG_GDBSTUB_ON_TTYS1) diff --git a/arch/mn10300/unit-asb2364/irq-fpga.c b/arch/mn10300/unit-asb2364/irq-fpga.c index fcf29754e4d1..ee84e62b16ed 100644 --- a/arch/mn10300/unit-asb2364/irq-fpga.c +++ b/arch/mn10300/unit-asb2364/irq-fpga.c @@ -17,38 +17,38 @@ /* * FPGA PIC operations */ -static void asb2364_fpga_mask(unsigned int irq) +static void asb2364_fpga_mask(struct irq_data *d) { - ASB2364_FPGA_REG_MASK(irq - NR_CPU_IRQS) = 0x0001; + ASB2364_FPGA_REG_MASK(d->irq - NR_CPU_IRQS) = 0x0001; SyncExBus(); } -static void asb2364_fpga_ack(unsigned int irq) +static void asb2364_fpga_ack(struct irq_data *d) { - ASB2364_FPGA_REG_IRQ(irq - NR_CPU_IRQS) = 0x0001; + ASB2364_FPGA_REG_IRQ(d->irq - NR_CPU_IRQS) = 0x0001; SyncExBus(); } -static void asb2364_fpga_mask_ack(unsigned int irq) +static void asb2364_fpga_mask_ack(struct irq_data *d) { - ASB2364_FPGA_REG_MASK(irq - NR_CPU_IRQS) = 0x0001; + ASB2364_FPGA_REG_MASK(d->irq - NR_CPU_IRQS) = 0x0001; SyncExBus(); - ASB2364_FPGA_REG_IRQ(irq - NR_CPU_IRQS) = 0x0001; + ASB2364_FPGA_REG_IRQ(d->irq - NR_CPU_IRQS) = 0x0001; SyncExBus(); } -static void asb2364_fpga_unmask(unsigned int irq) +static void asb2364_fpga_unmask(struct irq_data *d) { - ASB2364_FPGA_REG_MASK(irq - NR_CPU_IRQS) = 0x0000; + ASB2364_FPGA_REG_MASK(d->irq - NR_CPU_IRQS) = 0x0000; SyncExBus(); } static struct irq_chip asb2364_fpga_pic = { .name = "fpga", - .ack = asb2364_fpga_ack, - .mask = asb2364_fpga_mask, - .mask_ack = asb2364_fpga_mask_ack, - .unmask = asb2364_fpga_unmask, + .irq_ack = asb2364_fpga_ack, + .irq_mask = asb2364_fpga_mask, + .irq_mask_ack = asb2364_fpga_mask_ack, + .irq_unmask = asb2364_fpga_unmask, }; /* @@ -88,6 +88,17 @@ void __init irq_fpga_init(void) { int irq; + ASB2364_FPGA_REG_MASK_LAN = 0x0001; + SyncExBus(); + ASB2364_FPGA_REG_MASK_UART = 0x0001; + SyncExBus(); + ASB2364_FPGA_REG_MASK_I2C = 0x0001; + SyncExBus(); + ASB2364_FPGA_REG_MASK_USB = 0x0001; + SyncExBus(); + ASB2364_FPGA_REG_MASK_FPGA = 0x0001; + SyncExBus(); + for (irq = NR_CPU_IRQS; irq < NR_IRQS; irq++) set_irq_chip_and_handler(irq, &asb2364_fpga_pic, handle_level_irq); diff --git a/arch/mn10300/unit-asb2364/unit-init.c b/arch/mn10300/unit-asb2364/unit-init.c index 11440803db10..6359b41ce7e9 100644 --- a/arch/mn10300/unit-asb2364/unit-init.c +++ b/arch/mn10300/unit-asb2364/unit-init.c @@ -20,13 +20,41 @@ #include <asm/processor.h> #include <asm/irq.h> #include <asm/intctl-regs.h> +#include <asm/serial-regs.h> #include <unit/fpga-regs.h> +#include <unit/serial.h> +#include <unit/smsc911x.h> + +#define TTYS0_SERIAL_IER __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_IER * 2, u8) +#define LAN_IRQ_CFG __SYSREG(SMSC911X_BASE + 0x54, u32) +#define LAN_INT_EN __SYSREG(SMSC911X_BASE + 0x5c, u32) /* * initialise some of the unit hardware before gdbstub is set up */ asmlinkage void __init unit_init(void) { + /* Make sure we aren't going to get unexpected interrupts */ + TTYS0_SERIAL_IER = 0; + SC0RXICR = 0; + SC0TXICR = 0; + SC1RXICR = 0; + SC1TXICR = 0; + SC2RXICR = 0; + SC2TXICR = 0; + + /* Attempt to reset the FPGA attached peripherals */ + ASB2364_FPGA_REG_RESET_LAN = 0x0000; + SyncExBus(); + ASB2364_FPGA_REG_RESET_UART = 0x0000; + SyncExBus(); + ASB2364_FPGA_REG_RESET_I2C = 0x0000; + SyncExBus(); + ASB2364_FPGA_REG_RESET_USB = 0x0000; + SyncExBus(); + ASB2364_FPGA_REG_RESET_AV = 0x0000; + SyncExBus(); + /* set up the external interrupts */ /* XIRQ[0]: NAND RXBY */ @@ -56,7 +84,23 @@ asmlinkage void __init unit_init(void) */ asmlinkage void __init unit_setup(void) { + /* Release the reset on the SMSC911X so that it is ready by the time we + * need it */ + ASB2364_FPGA_REG_RESET_LAN = 0x0001; + SyncExBus(); + ASB2364_FPGA_REG_RESET_UART = 0x0001; + SyncExBus(); + ASB2364_FPGA_REG_RESET_I2C = 0x0001; + SyncExBus(); + ASB2364_FPGA_REG_RESET_USB = 0x0001; + SyncExBus(); + ASB2364_FPGA_REG_RESET_AV = 0x0001; + SyncExBus(); + /* Make sure the ethernet chipset isn't going to give us an interrupt + * storm from stuff it was doing pre-reset */ + LAN_IRQ_CFG = 0; + LAN_INT_EN = 0; } /* |