--- /dev/null
+/*
+ * 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 */
#include <asm/m5282.h>
#endif
+#ifdef CONFIG_M5249
+#include <asm/m5249.h>
+#include <asm/immap_5249.h>
+#endif
+
static ulong timestamp;
#ifdef CONFIG_M5282
#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.
projects / kernel / u-boot.git / commitdiff