diff options
| -rw-r--r-- | include/asm-m68k/immap_5249.h | 43 | ||||
| -rw-r--r-- | include/asm-m68k/m5249.h | 189 | ||||
| -rw-r--r-- | include/asm-m68k/mcfuart.h | 4 | ||||
| -rw-r--r-- | include/asm-m68k/ptrace.h | 2 | ||||
| -rw-r--r-- | lib_m68k/time.c | 86 |
5 files changed, 323 insertions, 1 deletions
diff --git a/include/asm-m68k/immap_5249.h b/include/asm-m68k/immap_5249.h new file mode 100644 index 0000000..a2c1271 --- /dev/null +++ b/include/asm-m68k/immap_5249.h @@ -0,0 +1,43 @@ +/* + * MCF5249 Internal Memory Map + * + * Copyright (c) 2003 Josef Baumgartner <josef.baumgartner@telex.de> + * + * See file CREDITS for list of people who contributed to this + * project. + * + * 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. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#ifndef __IMMAP_5249__ +#define __IMMAP_5249__ + +/* Timer module registers + */ +typedef struct timer_ctrl { + ushort timer_tmr; + ushort res1; + ushort timer_trr; + ushort res2; + ushort timer_tcap; + ushort res3; + ushort timer_tcn; + ushort res4; + ushort timer_ter; + uchar res5[14]; +} timer_t; + +#endif /* __IMMAP_5249__ */ diff --git a/include/asm-m68k/m5249.h b/include/asm-m68k/m5249.h new file mode 100644 index 0000000..7ff5630 --- /dev/null +++ b/include/asm-m68k/m5249.h @@ -0,0 +1,189 @@ +/* + * mcf5249.h -- Definitions for Motorola Coldfire 5249 + * + * Based on mcf5272sim.h of uCLinux distribution: + * (C) Copyright 1999, Greg Ungerer (gerg@snapgear.com) + * (C) Copyright 2000, Lineo Inc. (www.lineo.com) + * + * See file CREDITS for list of people who contributed to this + * project. + * + * 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. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + + +#ifndef mcf5249_h +#define mcf5249_h +/****************************************************************************/ + +/* + * useful definitions for reading/writing MBAR offset memory + */ +#define mbar_readLong(x) *((volatile unsigned long *) (CFG_MBAR + x)) +#define mbar_writeLong(x,y) *((volatile unsigned long *) (CFG_MBAR + x)) = y +#define mbar_writeShort(x,y) *((volatile unsigned short *) (CFG_MBAR + x)) = y +#define mbar_writeByte(x,y) *((volatile unsigned char *) (CFG_MBAR + x)) = y +#define mbar2_readLong(x) *((volatile unsigned long *) (CFG_MBAR2 + x)) +#define mbar2_writeLong(x,y) *((volatile unsigned long *) (CFG_MBAR2 + x)) = y +#define mbar2_writeShort(x,y) *((volatile unsigned short *) (CFG_MBAR2 + x)) = y +#define mbar2_writeByte(x,y) *((volatile unsigned char *) (CFG_MBAR2 + x)) = y + + +/* + * Size of internal RAM + */ + +#define INT_RAM_SIZE 32768 /* RAMBAR0 - 32k */ +#define INT_RAM_SIZE2 65536 /* RAMBAR1 - 64k */ + +/* + * Define the 5249 SIM register set addresses. + */ + +/***************** + ***** MBAR1 ***** + *****************/ +#define MCFSIM_RSR 0x00 /* Reset Status reg (r/w) */ +#define MCFSIM_SYPCR 0x01 /* System Protection reg (r/w)*/ +#define MCFSIM_SWIVR 0x02 /* SW Watchdog intr reg (r/w) */ +#define MCFSIM_SWSR 0x03 /* SW Watchdog service (r/w) */ +#define MCFSIM_MPARK 0x0c /* Bus master park register (r/w) */ + +#define MCFSIM_SIMR 0x00 /* SIM Config reg (r/w) */ +#define MCFSIM_ICR0 0x4c /* Intr Ctrl reg 0 (r/w) */ +#define MCFSIM_ICR1 0x4d /* Intr Ctrl reg 1 (r/w) */ +#define MCFSIM_ICR2 0x4e /* Intr Ctrl reg 2 (r/w) */ +#define MCFSIM_ICR3 0x4f /* Intr Ctrl reg 3 (r/w) */ +#define MCFSIM_ICR4 0x50 /* Intr Ctrl reg 4 (r/w) */ +#define MCFSIM_ICR5 0x51 /* Intr Ctrl reg 5 (r/w) */ +#define MCFSIM_ICR6 0x52 /* Intr Ctrl reg 6 (r/w) */ +#define MCFSIM_ICR7 0x53 /* Intr Ctrl reg 7 (r/w) */ +#define MCFSIM_ICR8 0x54 /* Intr Ctrl reg 8 (r/w) */ +#define MCFSIM_ICR9 0x55 /* Intr Ctrl reg 9 (r/w) */ +#define MCFSIM_ICR10 0x56 /* Intr Ctrl reg 10 (r/w) */ +#define MCFSIM_ICR11 0x57 /* Intr Ctrl reg 11 (r/w) */ + +#define MCFSIM_IPR 0x40 /* Interrupt Pend reg (r/w) */ +#define MCFSIM_IMR 0x44 /* Interrupt Mask reg (r/w) */ + +#define MCFSIM_CSAR0 0x80 /* CS 0 Address 0 reg (r/w) */ +#define MCFSIM_CSMR0 0x84 /* CS 0 Mask 0 reg (r/w) */ +#define MCFSIM_CSCR0 0x8a /* CS 0 Control reg (r/w) */ +#define MCFSIM_CSAR1 0x8c /* CS 1 Address reg (r/w) */ +#define MCFSIM_CSMR1 0x90 /* CS 1 Mask reg (r/w) */ +#define MCFSIM_CSCR1 0x96 /* CS 1 Control reg (r/w) */ +#define MCFSIM_CSAR2 0x98 /* CS 2 Address reg (r/w) */ +#define MCFSIM_CSMR2 0x9c /* CS 2 Mask reg (r/w) */ +#define MCFSIM_CSCR2 0xa2 /* CS 2 Control reg (r/w) */ +#define MCFSIM_CSAR3 0xa4 /* CS 3 Address reg (r/w) */ +#define MCFSIM_CSMR3 0xa8 /* CS 3 Mask reg (r/w) */ +#define MCFSIM_CSCR3 0xae /* CS 3 Control reg (r/w) */ + +#define MCFSIM_DCR 0x100 /* DRAM Control reg (r/w) */ +#define MCFSIM_DACR0 0x108 /* DRAM 0 Addr and Ctrl (r/w) */ +#define MCFSIM_DMR0 0x10c /* DRAM 0 Mask reg (r/w) */ +#define MCFSIM_DACR1 0x110 /* DRAM 1 Addr and Ctrl (r/w) */ +#define MCFSIM_DMR1 0x114 /* DRAM 1 Mask reg (r/w) */ + +/** UART Bases **/ +#define MCFUART_BASE1 0x1c0 /* Base address of UART1 */ +#define MCFUART_BASE2 0x200 /* Base address of UART2 */ + +/***************** + ***** MBAR2 ***** + *****************/ + +/* GPIO Addresses + * Note: These are offset from MBAR2! + */ +#define MCFSIM_GPIO_READ 0x00 /* Read-Only access to gpio 0-31 (MBAR2) (r) */ +#define MCFSIM_GPIO_OUT 0x04 /* Output register for gpio 0-31 (MBAR2) (r/w)*/ +#define MCFSIM_GPIO_EN 0x08 /* gpio 0-31 enable (r/w)*/ +#define MCFSIM_GPIO_FUNC 0x0c /* gpio 0-31 function select (r/w) */ +#define MCFSIM_GPIO1_READ 0xb0 /* Read-Only access to gpio 32-63 (MBAR2) (r) */ +#define MCFSIM_GPIO1_OUT 0xb4 /* Output register for gpio 32-63 (MBAR2) (r/w) */ +#define MCFSIM_GPIO1_EN 0xb8 /* gpio 32-63 enable (r/w) */ +#define MCFSIM_GPIO1_FUNC 0xbc /* gpio 32-63 function select (r/w) */ + +#define MCFSIM_GPIO_INT_STAT 0xc0 /* Secondary Interrupt status (r) */ +#define MCFSIM_GPIO_INT_CLEAR 0xc0 /* Secondary Interrupt status (w) */ +#define MCFSIM_GPIO_INT_EN 0xc4 /* Secondary Interrupt status (r/w) */ + +#define MCFSIM_INT_STAT3 0xe0 /* 3rd Interrupt ctrl status (r) */ +#define MCFSIM_INT_CLEAR3 0xe0 /* 3rd Interrupt ctrl clear (w) */ +#define MCFSIM_INT_EN3 0xe4 /* 3rd Interrupt ctrl enable (r/w) */ + +#define MCFSIM_INTLEV1 0x140 /* Interrupts 0 - 7 (r/w) */ +#define MCFSIM_INTLEV2 0x144 /* Interrupts 8 -15 (r/w) */ +#define MCFSIM_INTLEV3 0x148 /* Interrupts 16-23 (r/w) */ +#define MCFSIM_INTLEV4 0x14c /* Interrupts 24-31 (r/w) */ +#define MCFSIM_INTLEV5 0x150 /* Interrupts 32-39 (r/w) */ +#define MCFSIM_INTLEV6 0x154 /* Interrupts 40-47 (r/w) */ +#define MCFSIM_INTLEV7 0x158 /* Interrupts 48-55 (r/w) */ +#define MCFSIM_INTLEV8 0x15c /* Interrupts 56-63 (r/w) */ + +#define MCFSIM_SPURVEC 0x167 /* Spurious Vector Register (r/w) */ +#define MCFSIM_INTBASE 0x16b /* Software interrupt base address (r/w) */ + +#define MCFSIM_IDECONFIG1 0x18c /* IDE config register 1 (r/w) */ +#define MCFSIM_IDECONFIG2 0x190 /* IDE config register 1 (r/w) */ + +#define MCFSIM_PLLCR 0x180 /* PLL Control register */ + + + +/* + * Some symbol defines for the above... + */ +#define MCFSIM_SWDICR MCFSIM_ICR0 /* Watchdog timer ICR */ +#define MCFSIM_TIMER1ICR MCFSIM_ICR1 /* Timer 1 ICR */ +#define MCFSIM_TIMER2ICR MCFSIM_ICR2 /* Timer 2 ICR */ +#define MCFSIM_I2CICR MCFSIM_ICR3 /* I2C ICR */ +#define MCFSIM_UART1ICR MCFSIM_ICR4 /* UART 1 ICR */ +#define MCFSIM_UART2ICR MCFSIM_ICR5 /* UART 2 ICR */ +/* XXX - If needed, DMA ICRs go here */ +#define MCFSIM_QSPIICR MCFSIM_ICR10 /* QSPI ICR */ + +/* + * Bit definitions for the ICR family of registers. + */ +#define MCFSIM_ICR_AUTOVEC 0x80 /* Auto-vectored intr */ +#define MCFSIM_ICR_LEVEL0 0x00 /* Level 0 intr */ +#define MCFSIM_ICR_LEVEL1 0x04 /* Level 1 intr */ +#define MCFSIM_ICR_LEVEL2 0x08 /* Level 2 intr */ +#define MCFSIM_ICR_LEVEL3 0x0c /* Level 3 intr */ +#define MCFSIM_ICR_LEVEL4 0x10 /* Level 4 intr */ +#define MCFSIM_ICR_LEVEL5 0x14 /* Level 5 intr */ +#define MCFSIM_ICR_LEVEL6 0x18 /* Level 6 intr */ +#define MCFSIM_ICR_LEVEL7 0x1c /* Level 7 intr */ + +#define MCFSIM_ICR_PRI0 0x00 /* Priority 0 intr */ +#define MCFSIM_ICR_PRI1 0x01 /* Priority 1 intr */ +#define MCFSIM_ICR_PRI2 0x02 /* Priority 2 intr */ +#define MCFSIM_ICR_PRI3 0x03 /* Priority 3 intr */ + + +/* + * Macros to read/set IMR register. It is 32 bits on the 5249. + */ + +#define mcf_getimr() \ + *((volatile unsigned long *) (MCF_MBAR + MCFSIM_IMR)) + +#define mcf_setimr(imr) \ + *((volatile unsigned long *) (MCF_MBAR + MCFSIM_IMR)) = (imr); + +#endif /* mcf5249_h */ diff --git a/include/asm-m68k/mcfuart.h b/include/asm-m68k/mcfuart.h index 7b80245..e5082a9 100644 --- a/include/asm-m68k/mcfuart.h +++ b/include/asm-m68k/mcfuart.h @@ -87,6 +87,10 @@ #define MCFUART_UOP1 0x38 /* Output Port Bit Set (w) */ #define MCFUART_UOP0 0x3c /* Output Port Bit Reset (w) */ +#ifdef CONFIG_M5249 +/* Note: This isn't in the 5249 docs */ +#define MCFUART_UFPD 0x30 /* Frac Prec. Divider (r/w) */ +#endif /* * Define bit flags in Mode Register 1 (MR1). diff --git a/include/asm-m68k/ptrace.h b/include/asm-m68k/ptrace.h index a80ff90..a6d3d74 100644 --- a/include/asm-m68k/ptrace.h +++ b/include/asm-m68k/ptrace.h @@ -43,7 +43,7 @@ struct pt_regs { ulong a4; ulong a5; ulong a6; -#if defined(CONFIG_M5272) || defined(CONFIG_M5282) +#if defined(CONFIG_M5272) || defined(CONFIG_M5282) || defined(CONFIG_M5249) unsigned format : 4; /* frame format specifier */ unsigned vector : 12; /* vector offset */ unsigned short sr; diff --git a/lib_m68k/time.c b/lib_m68k/time.c index 6f73ba9..fb997b5 100644 --- a/lib_m68k/time.c +++ b/lib_m68k/time.c @@ -36,6 +36,11 @@ #include <asm/m5282.h> #endif +#ifdef CONFIG_M5249 +#include <asm/m5249.h> +#include <asm/immap_5249.h> +#endif + static ulong timestamp; #ifdef CONFIG_M5282 @@ -173,6 +178,87 @@ void wait_ticks (unsigned long ticks) #endif +#if defined(CONFIG_M5249) +/* + * We use timer 1 which is running with a period of 1 us + */ +void udelay(unsigned long usec) +{ + volatile timer_t *timerp = (timer_t *) (CFG_MBAR + MCFTIMER_BASE1); + uint start, now, tmp; + + while (usec > 0) { + if (usec > 65000) + tmp = 65000; + else + tmp = usec; + usec = usec - tmp; + + /* Set up TIMER 1 as timebase clock */ + timerp->timer_tmr = MCFTIMER_TMR_DISABLE; + timerp->timer_tcn = 0; + /* set period to 1 us */ + /* on m5249 the system clock is (cpu_clk / 2) -> divide by 2000000 */ + timerp->timer_tmr = (((CFG_CLK / 2000000) - 1) << 8) | MCFTIMER_TMR_CLK1 | + MCFTIMER_TMR_FREERUN | MCFTIMER_TMR_ENABLE; + + start = now = timerp->timer_tcn; + while (now < start + tmp) + now = timerp->timer_tcn; + } +} + +void mcf_timer_interrupt (void * not_used){ + volatile timer_t *timerp = (timer_t *) (CFG_MBAR + MCFTIMER_BASE2); + + /* check for timer 2 interrupts */ + if ((mbar_readLong(MCFSIM_IPR) & 0x00000400) == 0) { + return; + } + + /* reset timer */ + timerp->timer_ter = MCFTIMER_TER_CAP | MCFTIMER_TER_REF; + timestamp ++; +} + +void timer_init (void) { + volatile timer_t *timerp = (timer_t *) (CFG_MBAR + MCFTIMER_BASE2); + + timestamp = 0; + + /* Set up TIMER 2 as clock */ + timerp->timer_tmr = MCFTIMER_TMR_DISABLE; + + /* initialize and enable timer 2 interrupt */ + irq_install_handler (31, mcf_timer_interrupt, 0); + mbar_writeLong(MCFSIM_IMR, mbar_readLong(MCFSIM_IMR) & ~0x00000400); + mbar_writeByte(MCFSIM_TIMER2ICR, MCFSIM_ICR_AUTOVEC | MCFSIM_ICR_LEVEL7 | MCFSIM_ICR_PRI3); + + timerp->timer_tcn = 0; + timerp->timer_trr = 1000; /* Interrupt every ms */ + /* set a period of 1us, set timer mode to restart and enable timer and interrupt */ + /* on m5249 the system clock is (cpu_clk / 2) -> divide by 2000000 */ + timerp->timer_tmr = (((CFG_CLK / 2000000) - 1) << 8) | MCFTIMER_TMR_CLK1 | + MCFTIMER_TMR_RESTART | MCFTIMER_TMR_ENORI | MCFTIMER_TMR_ENABLE; +} + +void reset_timer (void) +{ + timestamp = 0; +} + +ulong get_timer (ulong base) +{ + return (timestamp - base); +} + +void set_timer (ulong t) +{ + timestamp = t; +} +#endif + + /* * This function is derived from PowerPC code (read timebase as long long). * On M68K it just returns the timer value. |