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2024-09-09 08:52:07 +00:00
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24
kernel/arch/mn10300/unit-asb2303/include/unit/clock.h Normal file
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/* ASB2303-specific clocks
*
* Copyright (C) 2007 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 Licence
* as published by the Free Software Foundation; either version
* 2 of the Licence, or (at your option) any later version.
*/
#ifndef _ASM_UNIT_CLOCK_H
#define _ASM_UNIT_CLOCK_H
#ifndef __ASSEMBLY__
#define MN10300_IOCLK 33333333UL
/* #define MN10300_IOBCLK 66666666UL */
#endif /* !__ASSEMBLY__ */
#define MN10300_WDCLK MN10300_IOCLK
#endif /* _ASM_UNIT_CLOCK_H */

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kernel/arch/mn10300/unit-asb2303/include/unit/leds.h Normal file
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/* ASB2303-specific LEDs
*
* Copyright (C) 2007 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 Licence
* as published by the Free Software Foundation; either version
* 2 of the Licence, 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 ASB2303_GPIO0DEF __SYSREG(0xDB000000, u32)
#define ASB2303_7SEGLEDS __SYSREG(0xDB000008, u32)
/*
* use the 7-segment LEDs to indicate states
*/
/* flip the 7-segment LEDs between "G" and "-" */
#define mn10300_set_gdbleds(ONOFF) \
do { \
ASB2303_7SEGLEDS = (ONOFF) ? 0x85 : 0x7f; \
} while (0)
/* indicate double-fault by displaying "d" on the LEDs */
#define mn10300_set_dbfleds \
mov 0x43,d0 ; \
movbu d0,(ASB2303_7SEGLEDS)
#ifndef __ASSEMBLY__
extern void peripheral_leds_display_exception(enum exception_code code);
extern void peripheral_leds_led_chase(void);
extern void debug_to_serial(const char *p, int n);
#endif /* __ASSEMBLY__ */
#endif /* _ASM_UNIT_LEDS_H */

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kernel/arch/mn10300/unit-asb2303/include/unit/serial.h Normal file
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/* ASB2303-specific 8250 serial ports
*
* Copyright (C) 2007 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 Licence
* as published by the Free Software Foundation; either version
* 2 of the Licence, 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 <linux/serial_reg.h>
#define SERIAL_PORT0_BASE_ADDRESS 0xA6FB0000
#define SERIAL_PORT1_BASE_ADDRESS 0xA6FC0000
#define SERIAL_IRQ XIRQ0 /* Dual serial (PC16552) (Hi) */
/*
* The ASB2303 has an 18.432 MHz clock the UART
*/
#define BASE_BAUD (18432000 / 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 = 2, \
.io_type = SERIAL_IO_MEM, \
}, \
{ \
.baud_base = BASE_BAUD, \
.irq = SERIAL_IRQ, \
.flags = STD_COM_FLAGS, \
.iomem_base = (u8 *) SERIAL_PORT1_BASE_ADDRESS, \
.iomem_reg_shift = 2, \
.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 /* both stolen by gdb-stub because they share an IRQ */
#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)
#define GDBPORT_SERIAL_RX __SYSREG(SERIAL_PORT1_BASE_ADDRESS + UART_RX * 4, u8)
#define GDBPORT_SERIAL_TX __SYSREG(SERIAL_PORT1_BASE_ADDRESS + UART_TX * 4, u8)
#define GDBPORT_SERIAL_DLL __SYSREG(SERIAL_PORT1_BASE_ADDRESS + UART_DLL * 4, u8)
#define GDBPORT_SERIAL_DLM __SYSREG(SERIAL_PORT1_BASE_ADDRESS + UART_DLM * 4, u8)
#define GDBPORT_SERIAL_IER __SYSREG(SERIAL_PORT1_BASE_ADDRESS + UART_IER * 4, u8)
#define GDBPORT_SERIAL_IIR __SYSREG(SERIAL_PORT1_BASE_ADDRESS + UART_IIR * 4, u8)
#define GDBPORT_SERIAL_FCR __SYSREG(SERIAL_PORT1_BASE_ADDRESS + UART_FCR * 4, u8)
#define GDBPORT_SERIAL_LCR __SYSREG(SERIAL_PORT1_BASE_ADDRESS + UART_LCR * 4, u8)
#define GDBPORT_SERIAL_MCR __SYSREG(SERIAL_PORT1_BASE_ADDRESS + UART_MCR * 4, u8)
#define GDBPORT_SERIAL_LSR __SYSREG(SERIAL_PORT1_BASE_ADDRESS + UART_LSR * 4, u8)
#define GDBPORT_SERIAL_MSR __SYSREG(SERIAL_PORT1_BASE_ADDRESS + UART_MSR * 4, u8)
#define GDBPORT_SERIAL_SCR __SYSREG(SERIAL_PORT1_BASE_ADDRESS + UART_SCR * 4, u8)
#define GDBPORT_SERIAL_IRQ SERIAL_IRQ
#endif
#ifndef __ASSEMBLY__
#define LSR_WAIT_FOR(STATE) \
do { \
while (!(GDBPORT_SERIAL_LSR & UART_LSR_##STATE)) {} \
} while (0)
#define FLOWCTL_WAIT_FOR(LINE) \
do { \
while (!(GDBPORT_SERIAL_MSR & UART_MSR_##LINE)) {} \
} while (0)
#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)
#define FLOWCTL_QUERY(LINE) ({ GDBPORT_SERIAL_MSR & UART_MSR_##LINE; })
static inline void __debug_to_serial(const char *p, int n)
{
char ch;
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 */
#endif /* _ASM_UNIT_SERIAL_H */

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kernel/arch/mn10300/unit-asb2303/include/unit/smc91111.h Normal file
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/* Support for the SMC91C111 NIC on an ASB2303
*
* Copyright (C) 2007 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 Licence
* as published by the Free Software Foundation; either version
* 2 of the Licence, or (at your option) any later version.
*/
#ifndef _ASM_UNIT_SMC91111_H
#define _ASM_UNIT_SMC91111_H
#include <asm/intctl-regs.h>
#define SMC91111_BASE 0xAA000300UL
#define SMC91111_BASE_END 0xAA000400UL
#define SMC91111_IRQ XIRQ3
#define SMC_CAN_USE_8BIT 0
#define SMC_CAN_USE_16BIT 1
#define SMC_CAN_USE_32BIT 0
#define SMC_NOWAIT 1
#define SMC_IRQ_FLAGS (0)
#if SMC_CAN_USE_8BIT
#define SMC_inb(a, r) inb((unsigned long) ((a) + (r)))
#define SMC_outb(v, a, r) outb(v, (unsigned long) ((a) + (r)))
#endif
#if SMC_CAN_USE_16BIT
#define SMC_inw(a, r) inw((unsigned long) ((a) + (r)))
#define SMC_outw(v, a, r) outw(v, (unsigned long) ((a) + (r)))
#define SMC_insw(a, r, p, l) insw((unsigned long) ((a) + (r)), (p), (l))
#define SMC_outsw(a, r, p, l) outsw((unsigned long) ((a) + (r)), (p), (l))
#endif
#if SMC_CAN_USE_32BIT
#define SMC_inl(a, r) inl((unsigned long) ((a) + (r)))
#define SMC_outl(v, a, r) outl(v, (unsigned long) ((a) + (r)))
#define SMC_insl(a, r, p, l) insl((unsigned long) ((a) + (r)), (p), (l))
#define SMC_outsl(a, r, p, l) outsl((unsigned long) ((a) + (r)), (p), (l))
#endif
#define RPC_LSA_DEFAULT RPC_LED_100_10
#define RPC_LSB_DEFAULT RPC_LED_TX_RX
#define set_irq_type(irq, type)
#endif /* _ASM_UNIT_SMC91111_H */

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kernel/arch/mn10300/unit-asb2303/include/unit/timex.h Normal file
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/* ASB2303-specific timer specifications
*
* Copyright (C) 2007, 2010 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 Licence
* as published by the Free Software Foundation; either version
* 2 of the Licence, 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 0xffff
#define TMJCIRQ TM1IRQ
#define TMJCICR TM1ICR
#ifndef __ASSEMBLY__
#define MN10300_SRC_IOCLK MN10300_IOCLK
#ifndef HZ
# error HZ undeclared.
#endif /* !HZ */
/* use as little prescaling as possible to avoid losing accuracy */
#if (MN10300_SRC_IOCLK + HZ / 2) / HZ - 1 <= TMJCBR_MAX
# define IOCLK_PRESCALE 1
# define JC_TIMER_CLKSRC TM0MD_SRC_IOCLK
# define TSC_TIMER_CLKSRC TM4MD_SRC_IOCLK
#elif (MN10300_SRC_IOCLK / 8 + HZ / 2) / HZ - 1 <= TMJCBR_MAX
# define IOCLK_PRESCALE 8
# define JC_TIMER_CLKSRC TM0MD_SRC_IOCLK_8
# define TSC_TIMER_CLKSRC TM4MD_SRC_IOCLK_8
#elif (MN10300_SRC_IOCLK / 32 + HZ / 2) / HZ - 1 <= TMJCBR_MAX
# define IOCLK_PRESCALE 32
# define JC_TIMER_CLKSRC TM0MD_SRC_IOCLK_32
# define TSC_TIMER_CLKSRC TM4MD_SRC_IOCLK_32
#else
# error You lose.
#endif
#define MN10300_JCCLK (MN10300_SRC_IOCLK / IOCLK_PRESCALE)
#define MN10300_TSCCLK (MN10300_SRC_IOCLK / IOCLK_PRESCALE)
#define MN10300_JC_PER_HZ ((MN10300_JCCLK + HZ / 2) / HZ)
#define MN10300_TSC_PER_HZ ((MN10300_TSCCLK + HZ / 2) / HZ)
static inline void stop_jiffies_counter(void)
{
u16 tmp;
TM01MD = JC_TIMER_CLKSRC | TM1MD_SRC_TM0CASCADE << 8;
tmp = TM01MD;
}
static inline void reload_jiffies_counter(u32 cnt)
{
u32 tmp;
TM01BR = cnt;
tmp = TM01BR;
TM01MD = JC_TIMER_CLKSRC | \
TM1MD_SRC_TM0CASCADE << 8 | \
TM0MD_INIT_COUNTER | \
TM1MD_INIT_COUNTER << 8;
TM01MD = JC_TIMER_CLKSRC | \
TM1MD_SRC_TM0CASCADE << 8 | \
TM0MD_COUNT_ENABLE | \
TM1MD_COUNT_ENABLE << 8;
tmp = TM01MD;
}
#endif /* !__ASSEMBLY__ */
/*
* timestamp counter specifications
*/
#define TMTSCBR_MAX 0xffffffff
#define TMTSCBC TM45BC
#ifndef __ASSEMBLY__
static inline void startup_timestamp_counter(void)
{
u32 t32;
/* set up timer 4 & 5 cascaded as a 32-bit counter to count real time
* - count down from 4Gig-1 to 0 and wrap at IOCLK rate
*/
TM45BR = TMTSCBR_MAX;
t32 = TM45BR;
TM4MD = TSC_TIMER_CLKSRC;
TM4MD |= TM4MD_INIT_COUNTER;
TM4MD &= ~TM4MD_INIT_COUNTER;
TM4ICR = 0;
t32 = TM4ICR;
TM5MD = TM5MD_SRC_TM4CASCADE;
TM5MD |= TM5MD_INIT_COUNTER;
TM5MD &= ~TM5MD_INIT_COUNTER;
TM5ICR = 0;
t32 = TM5ICR;
TM5MD |= TM5MD_COUNT_ENABLE;
TM4MD |= TM4MD_COUNT_ENABLE;
t32 = TM5MD;
t32 = TM4MD;
}
static inline void shutdown_timestamp_counter(void)
{
u8 t8;
TM4MD = 0;
TM5MD = 0;
t8 = TM4MD;
t8 = TM5MD;
}
/*
* 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 */