diff options
Diffstat (limited to 'arch/mn10300/unit-asb2364/include/unit')
| -rw-r--r-- | arch/mn10300/unit-asb2364/include/unit/clock.h | 29 | ||||
| -rw-r--r-- | arch/mn10300/unit-asb2364/include/unit/fpga-regs.h | 50 | ||||
| -rw-r--r-- | arch/mn10300/unit-asb2364/include/unit/leds.h | 54 | ||||
| -rw-r--r-- | arch/mn10300/unit-asb2364/include/unit/serial.h | 151 | ||||
| -rw-r--r-- | arch/mn10300/unit-asb2364/include/unit/timex.h | 125 |
5 files changed, 409 insertions, 0 deletions
diff --git a/arch/mn10300/unit-asb2364/include/unit/clock.h b/arch/mn10300/unit-asb2364/include/unit/clock.h new file mode 100644 index 00000000000..d34ac9a7508 --- /dev/null +++ b/arch/mn10300/unit-asb2364/include/unit/clock.h @@ -0,0 +1,29 @@ +/* clock.h: unit-specific clocks + * + * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved. + * Written by David Howells (dhowells@redhat.com) + * + * Modified by Matsushita Electric Industrial Co., Ltd. + * Modifications: + * 23-Feb-2007 MEI Add define for watchdog timer. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + */ + +#ifndef _ASM_UNIT_CLOCK_H +#define _ASM_UNIT_CLOCK_H + +#ifndef __ASSEMBLY__ + +#define MN10300_IOCLK 100000000UL /* for DDR800 */ +/*#define MN10300_IOCLK 83333333UL */ /* for DDR667 */ +#define MN10300_IOBCLK MN10300_IOCLK /* IOBCLK is equal to IOCLK */ + +#endif /* !__ASSEMBLY__ */ + +#define MN10300_WDCLK 27000000UL + +#endif /* _ASM_UNIT_CLOCK_H */ diff --git a/arch/mn10300/unit-asb2364/include/unit/fpga-regs.h b/arch/mn10300/unit-asb2364/include/unit/fpga-regs.h new file mode 100644 index 00000000000..a039a50c91d --- /dev/null +++ b/arch/mn10300/unit-asb2364/include/unit/fpga-regs.h @@ -0,0 +1,50 @@ +/* ASB2364 FPGA registers + */ + +#ifndef _ASM_UNIT_FPGA_REGS_H +#define _ASM_UNIT_FPGA_REGS_H + +#include <asm/cpu-regs.h> + +#ifdef __KERNEL__ + +#define ASB2364_FPGA_REG_RESET_LAN __SYSREG(0xa9001300, u16) +#define ASB2364_FPGA_REG_RESET_UART __SYSREG(0xa9001304, u16) +#define ASB2364_FPGA_REG_RESET_I2C __SYSREG(0xa9001308, u16) +#define ASB2364_FPGA_REG_RESET_USB __SYSREG(0xa900130c, u16) +#define ASB2364_FPGA_REG_RESET_AV __SYSREG(0xa9001310, u16) + +#define ASB2364_FPGA_REG_IRQ_LAN __SYSREG(0xa9001510, u16) +#define ASB2364_FPGA_REG_IRQ_UART __SYSREG(0xa9001514, u16) +#define ASB2364_FPGA_REG_IRQ_I2C __SYSREG(0xa9001518, u16) +#define ASB2364_FPGA_REG_IRQ_USB __SYSREG(0xa900151c, u16) +#define ASB2364_FPGA_REG_IRQ_FPGA __SYSREG(0xa9001524, u16) + +#define ASB2364_FPGA_REG_MASK_LAN __SYSREG(0xa9001590, u16) +#define ASB2364_FPGA_REG_MASK_UART __SYSREG(0xa9001594, u16) +#define ASB2364_FPGA_REG_MASK_I2C __SYSREG(0xa9001598, u16) +#define ASB2364_FPGA_REG_MASK_USB __SYSREG(0xa900159c, u16) +#define ASB2364_FPGA_REG_MASK_FPGA __SYSREG(0xa90015a4, u16) + +#define ASB2364_FPGA_REG_CPLD5_SET1 __SYSREG(0xa9002500, u16) +#define ASB2364_FPGA_REG_CPLD5_SET2 __SYSREG(0xa9002504, u16) +#define ASB2364_FPGA_REG_CPLD6_SET1 __SYSREG(0xa9002600, u16) +#define ASB2364_FPGA_REG_CPLD6_SET2 __SYSREG(0xa9002604, u16) +#define ASB2364_FPGA_REG_CPLD7_SET1 __SYSREG(0xa9002700, u16) +#define ASB2364_FPGA_REG_CPLD7_SET2 __SYSREG(0xa9002704, u16) +#define ASB2364_FPGA_REG_CPLD8_SET1 __SYSREG(0xa9002800, u16) +#define ASB2364_FPGA_REG_CPLD8_SET2 __SYSREG(0xa9002804, u16) +#define ASB2364_FPGA_REG_CPLD9_SET1 __SYSREG(0xa9002900, u16) +#define ASB2364_FPGA_REG_CPLD9_SET2 __SYSREG(0xa9002904, u16) +#define ASB2364_FPGA_REG_CPLD10_SET1 __SYSREG(0xa9002a00, u16) +#define ASB2364_FPGA_REG_CPLD10_SET2 __SYSREG(0xa9002a04, u16) + +#define SyncExBus() \ + do { \ + unsigned short w; \ + w = *(volatile short *)0xa9000000; \ + } while (0) + +#endif /* __KERNEL__ */ + +#endif /* _ASM_UNIT_FPGA_REGS_H */ diff --git a/arch/mn10300/unit-asb2364/include/unit/leds.h b/arch/mn10300/unit-asb2364/include/unit/leds.h new file mode 100644 index 00000000000..03a3933ad32 --- /dev/null +++ b/arch/mn10300/unit-asb2364/include/unit/leds.h @@ -0,0 +1,54 @@ +/* Unit-specific leds + * + * Copyright (C) 2005 Red Hat, Inc. All Rights Reserved. + * Written by David Howells (dhowells@redhat.com) + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + */ + +#ifndef _ASM_UNIT_LEDS_H +#define _ASM_UNIT_LEDS_H + +#include <asm/pio-regs.h> +#include <asm/cpu-regs.h> +#include <asm/exceptions.h> + +#define MN10300_USE_7SEGLEDS 0 + +#define ASB2364_7SEGLEDS __SYSREG(0xA9001630, u32) + +/* + * use the 7-segment LEDs to indicate states + */ + +#if MN10300_USE_7SEGLEDS +/* flip the 7-segment LEDs between "Gdb-" and "----" */ +#define mn10300_set_gdbleds(ONOFF) \ + do { \ + ASB2364_7SEGLEDS = (ONOFF) ? 0x8543077f : 0x7f7f7f7f; \ + } while (0) +#else +#define mn10300_set_gdbleds(ONOFF) do {} while (0) +#endif + +#if MN10300_USE_7SEGLEDS +/* indicate double-fault by displaying "db-f" on the LEDs */ +#define mn10300_set_dbfleds \ + mov 0x43077f1d,d0 ; \ + mov d0,(ASB2364_7SEGLEDS) +#else +#define mn10300_set_dbfleds +#endif + +#ifndef __ASSEMBLY__ +extern void peripheral_leds_display_exception(enum exception_code); +extern void peripheral_leds_led_chase(void); +extern void peripheral_leds7x4_display_dec(unsigned int, unsigned int); +extern void peripheral_leds7x4_display_hex(unsigned int, unsigned int); +extern void debug_to_serial(const char *, int); +#endif /* __ASSEMBLY__ */ + +#endif /* _ASM_UNIT_LEDS_H */ diff --git a/arch/mn10300/unit-asb2364/include/unit/serial.h b/arch/mn10300/unit-asb2364/include/unit/serial.h new file mode 100644 index 00000000000..7f048bbfdfd --- /dev/null +++ b/arch/mn10300/unit-asb2364/include/unit/serial.h @@ -0,0 +1,151 @@ +/* Unit-specific 8250 serial ports + * + * Copyright (C) 2005 Red Hat, Inc. All Rights Reserved. + * Written by David Howells (dhowells@redhat.com) + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + */ + +#ifndef _ASM_UNIT_SERIAL_H +#define _ASM_UNIT_SERIAL_H + +#include <asm/cpu-regs.h> +#include <proc/irq.h> +#include <unit/fpga-regs.h> +#include <linux/serial_reg.h> + +#define SERIAL_PORT0_BASE_ADDRESS 0xA8200000 + +#define SERIAL_IRQ XIRQ1 /* single serial (TL16C550C) (Lo) */ + +/* + * The ASB2364 has an 12.288 MHz clock + * for your UART. + * + * It'd be nice if someone built a serial card with a 24.576 MHz + * clock, since the 16550A is capable of handling a top speed of 1.5 + * megabits/second; but this requires the faster clock. + */ +#define BASE_BAUD (12288000 / 16) + +/* + * dispose of the /dev/ttyS0 and /dev/ttyS1 serial ports + */ +#ifndef CONFIG_GDBSTUB_ON_TTYSx + +#define SERIAL_PORT_DFNS \ + { \ + .baud_base = BASE_BAUD, \ + .irq = SERIAL_IRQ, \ + .flags = STD_COM_FLAGS, \ + .iomem_base = (u8 *) SERIAL_PORT0_BASE_ADDRESS, \ + .iomem_reg_shift = 1, \ + .io_type = SERIAL_IO_MEM, \ + }, + +#ifndef __ASSEMBLY__ + +static inline void __debug_to_serial(const char *p, int n) +{ +} + +#endif /* !__ASSEMBLY__ */ + +#else /* CONFIG_GDBSTUB_ON_TTYSx */ + +#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_IRQ SERIAL_IRQ + +#elif defined(CONFIG_GDBSTUB_ON_TTYS1) +#error The ASB2364 does not have a /dev/ttyS1 +#endif + +#ifndef __ASSEMBLY__ + +static inline void __debug_to_serial(const char *p, int n) +{ + char ch; + +#define LSR_WAIT_FOR(STATE) \ + do {} while (!(GDBPORT_SERIAL_LSR & UART_LSR_##STATE)) +#define FLOWCTL_QUERY(LINE) \ + ({ GDBPORT_SERIAL_MSR & UART_MSR_##LINE; }) +#define FLOWCTL_WAIT_FOR(LINE) \ + do {} while (!(GDBPORT_SERIAL_MSR & UART_MSR_##LINE)) +#define FLOWCTL_CLEAR(LINE) \ + do { GDBPORT_SERIAL_MCR &= ~UART_MCR_##LINE; } while (0) +#define FLOWCTL_SET(LINE) \ + do { GDBPORT_SERIAL_MCR |= UART_MCR_##LINE; } while (0) + + FLOWCTL_SET(DTR); + + for (; n > 0; n--) { + LSR_WAIT_FOR(THRE); + FLOWCTL_WAIT_FOR(CTS); + + ch = *p++; + if (ch == 0x0a) { + GDBPORT_SERIAL_TX = 0x0d; + LSR_WAIT_FOR(THRE); + FLOWCTL_WAIT_FOR(CTS); + } + GDBPORT_SERIAL_TX = ch; + } + + FLOWCTL_CLEAR(DTR); +} + +#endif /* !__ASSEMBLY__ */ + +#endif /* CONFIG_GDBSTUB_ON_TTYSx */ + +#define SERIAL_INITIALIZE \ +do { \ + /* release reset */ \ + ASB2364_FPGA_REG_RESET_UART = 0x0001; \ + SyncExBus(); \ +} while (0) + +#define SERIAL_CHECK_INTERRUPT \ +do { \ + if ((ASB2364_FPGA_REG_IRQ_UART & 0x0001) == 0x0001) { \ + return IRQ_NONE; \ + } \ +} while (0) + +#define SERIAL_CLEAR_INTERRUPT \ +do { \ + ASB2364_FPGA_REG_IRQ_UART = 0x0001; \ + SyncExBus(); \ +} while (0) + +#define SERIAL_SET_INT_MASK \ +do { \ + ASB2364_FPGA_REG_MASK_UART = 0x0001; \ + SyncExBus(); \ +} while (0) + +#define SERIAL_CLEAR_INT_MASK \ +do { \ + ASB2364_FPGA_REG_MASK_UART = 0x0000; \ + SyncExBus(); \ +} while (0) + +#endif /* _ASM_UNIT_SERIAL_H */ diff --git a/arch/mn10300/unit-asb2364/include/unit/timex.h b/arch/mn10300/unit-asb2364/include/unit/timex.h new file mode 100644 index 00000000000..b5223f705ef --- /dev/null +++ b/arch/mn10300/unit-asb2364/include/unit/timex.h @@ -0,0 +1,125 @@ +/* timex.h: MN2WS0038 architecture timer specifications + * + * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved. + * Written by David Howells (dhowells@redhat.com) + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + */ +#ifndef _ASM_UNIT_TIMEX_H +#define _ASM_UNIT_TIMEX_H + +#ifndef __ASSEMBLY__ +#include <linux/irq.h> +#endif /* __ASSEMBLY__ */ + +#include <asm/timer-regs.h> +#include <unit/clock.h> +#include <asm/param.h> + +/* + * jiffies counter specifications + */ + +#define TMJCBR_MAX 0xffffff /* 24bit */ +#define TMJCBC TMTBC + +#define TMJCMD TMTMD +#define TMJCBR TMTBR +#define TMJCIRQ TMTIRQ +#define TMJCICR TMTICR + +#ifndef __ASSEMBLY__ + +#define MN10300_SRC_IOBCLK MN10300_IOBCLK + +#ifndef HZ +# error HZ undeclared. +#endif /* !HZ */ + +#define MN10300_JCCLK (MN10300_SRC_IOBCLK) +#define MN10300_TSCCLK (MN10300_SRC_IOBCLK) + +#define MN10300_JC_PER_HZ ((MN10300_JCCLK + HZ / 2) / HZ) +#define MN10300_TSC_PER_HZ ((MN10300_TSCCLK + HZ / 2) / HZ) + +/* Check bit width of MTM interval value that sets base register */ +#if (MN10300_JC_PER_HZ - 1) > TMJCBR_MAX +# error MTM tick timer interval value is overflow. +#endif + + +static inline void startup_jiffies_counter(void) +{ + u32 sync; + + TMJCBR = MN10300_JC_PER_HZ - 1; + sync = TMJCBR; + + TMJCMD = TMTMD_TMTLDE; + TMJCMD = TMTMD_TMTCNE; + sync = TMJCMD; + + TMJCICR |= GxICR_ENABLE | GxICR_DETECT | GxICR_REQUEST; + sync = TMJCICR; +} + +static inline void shutdown_jiffies_counter(void) +{ +} + +#endif /* !__ASSEMBLY__ */ + + +/* + * timestamp counter specifications + */ + +#define TMTSCBR_MAX 0xffffffff +#define TMTSCMD TMSMD +#define TMTSCBR TMSBR +#define TMTSCBC TMSBC +#define TMTSCICR TMSICR + +#ifndef __ASSEMBLY__ + +static inline void startup_timestamp_counter(void) +{ + u32 sync; + + /* set up TMS(Timestamp) 32bit timer register to count real time + * - count down from 4Gig-1 to 0 and wrap at IOBCLK rate + */ + + TMTSCBR = TMTSCBR_MAX; + sync = TMTSCBR; + + TMTSCICR = 0; + sync = TMTSCICR; + + TMTSCMD = TMTMD_TMTLDE; + TMTSCMD = TMTMD_TMTCNE; + sync = TMTSCMD; +} + +static inline void shutdown_timestamp_counter(void) +{ + TMTSCMD = 0; +} + +/* + * we use a cascaded pair of 16-bit down-counting timers to count I/O + * clock cycles for the purposes of time keeping + */ +typedef unsigned long cycles_t; + +static inline cycles_t read_timestamp_counter(void) +{ + return (cycles_t)TMTSCBC; +} + +#endif /* !__ASSEMBLY__ */ + +#endif /* _ASM_UNIT_TIMEX_H */ |