avionic design with actual uboot and tooling

submodule of avionic design uboot bootloader and with included tools to
get you started , read readme.md and readme-tk1-loader.md

u-boot/arch/m68k/cpu/mcf52x2/Makefile

@@ -0,0 +1,11 @@
+#
+# (C) Copyright 2000-2006
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# SPDX-License-Identifier:	GPL-2.0+
+#
+
+# ccflags-y += -DET_DEBUG
+
+extra-y	= start.o
+obj-y	= interrupts.o cpu.o speed.o cpu_init.o

u-boot/arch/m68k/cpu/mcf52x2/cpu.c

@@ -0,0 +1,414 @@
+/*
+ * (C) Copyright 2003
+ * Josef Baumgartner <josef.baumgartner@telex.de>
+ *
+ * MCF5282 additionals
+ * (C) Copyright 2005
+ * BuS Elektronik GmbH & Co. KG <esw@bus-elektronik.de>
+ *
+ * MCF5275 additions
+ * Copyright (C) 2008 Arthur Shipkowski (art@videon-central.com)
+ *
+ * Copyright (C) 2012 Freescale Semiconductor, Inc. All Rights Reserved.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <watchdog.h>
+#include <command.h>
+#include <asm/immap.h>
+#include <asm/io.h>
+#include <netdev.h>
+#include "cpu.h"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#ifdef	CONFIG_M5208
+int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+	rcm_t *rcm = (rcm_t *)(MMAP_RCM);
+
+	udelay(1000);
+
+	out_8(&rcm->rcr, RCM_RCR_SOFTRST);
+
+	/* we don't return! */
+	return 0;
+};
+
+int checkcpu(void)
+{
+	char buf1[32], buf2[32];
+
+	printf("CPU:   Freescale Coldfire MCF5208\n"
+	       "       CPU CLK %s MHz BUS CLK %s MHz\n",
+	       strmhz(buf1, gd->cpu_clk),
+	       strmhz(buf2, gd->bus_clk));
+	return 0;
+};
+
+#if defined(CONFIG_WATCHDOG)
+/* Called by macro WATCHDOG_RESET */
+void watchdog_reset(void)
+{
+	wdog_t *wdt = (wdog_t *)(MMAP_WDOG);
+
+	out_be16(&wdt->sr, 0x5555);
+	out_be16(&wdt->sr, 0xaaaa);
+}
+
+int watchdog_disable(void)
+{
+	wdog_t *wdt = (wdog_t *)(MMAP_WDOG);
+
+	/* reset watchdog counter */
+	out_be16(&wdt->sr, 0x5555);
+	out_be16(&wdt->sr, 0xaaaa);
+	/* disable watchdog timer */
+	out_be16(&wdt->cr, 0);
+
+	puts("WATCHDOG:disabled\n");
+	return (0);
+}
+
+int watchdog_init(void)
+{
+	wdog_t *wdt = (wdog_t *)(MMAP_WDOG);
+
+	/* disable watchdog */
+	out_be16(&wdt->cr, 0);
+
+	/* set timeout and enable watchdog */
+	out_be16(&wdt->mr,
+		(CONFIG_WATCHDOG_TIMEOUT * CONFIG_SYS_HZ) / (32768 * 1000) - 1);
+
+	/* reset watchdog counter */
+	out_be16(&wdt->sr, 0x5555);
+	out_be16(&wdt->sr, 0xaaaa);
+
+	puts("WATCHDOG:enabled\n");
+	return (0);
+}
+#endif				/* #ifdef CONFIG_WATCHDOG */
+#endif				/* #ifdef CONFIG_M5208 */
+
+#ifdef  CONFIG_M5271
+/*
+ * Both MCF5270 and MCF5271 are members of the MPC5271 family. Try to
+ * determine which one we are running on, based on the Chip Identification
+ * Register (CIR).
+ */
+int checkcpu(void)
+{
+	char buf[32];
+	unsigned short cir;	/* Chip Identification Register */
+	unsigned short pin;	/* Part identification number */
+	unsigned char prn;	/* Part revision number */
+	char *cpu_model;
+
+	cir = mbar_readShort(MCF_CCM_CIR);
+	pin = cir >> MCF_CCM_CIR_PIN_LEN;
+	prn = cir & MCF_CCM_CIR_PRN_MASK;
+
+	switch (pin) {
+	case MCF_CCM_CIR_PIN_MCF5270:
+		cpu_model = "5270";
+		break;
+	case MCF_CCM_CIR_PIN_MCF5271:
+		cpu_model = "5271";
+		break;
+	default:
+		cpu_model = NULL;
+		break;
+	}
+
+	if (cpu_model)
+		printf("CPU:   Freescale ColdFire MCF%s rev. %hu, at %s MHz\n",
+		       cpu_model, prn, strmhz(buf, CONFIG_SYS_CLK));
+	else
+		printf("CPU:   Unknown - Freescale ColdFire MCF5271 family"
+		       " (PIN: 0x%x) rev. %hu, at %s MHz\n",
+		       pin, prn, strmhz(buf, CONFIG_SYS_CLK));
+
+	return 0;
+}
+
+int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+	/* Call the board specific reset actions first. */
+	if(board_reset) {
+		board_reset();
+	}
+
+	mbar_writeByte(MCF_RCM_RCR,
+		       MCF_RCM_RCR_SOFTRST | MCF_RCM_RCR_FRCRSTOUT);
+	return 0;
+};
+
+#if defined(CONFIG_WATCHDOG)
+void watchdog_reset(void)
+{
+	mbar_writeShort(MCF_WTM_WSR, 0x5555);
+	mbar_writeShort(MCF_WTM_WSR, 0xAAAA);
+}
+
+int watchdog_disable(void)
+{
+	mbar_writeShort(MCF_WTM_WCR, 0);
+	return (0);
+}
+
+int watchdog_init(void)
+{
+	mbar_writeShort(MCF_WTM_WCR, MCF_WTM_WCR_EN);
+	return (0);
+}
+#endif				/* #ifdef CONFIG_WATCHDOG */
+
+#endif
+
+#ifdef	CONFIG_M5272
+int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+	wdog_t *wdp = (wdog_t *) (MMAP_WDOG);
+
+	out_be16(&wdp->wdog_wrrr, 0);
+	udelay(1000);
+
+	/* enable watchdog, set timeout to 0 and wait */
+	out_be16(&wdp->wdog_wrrr, 1);
+	while (1) ;
+
+	/* we don't return! */
+	return 0;
+};
+
+int checkcpu(void)
+{
+	sysctrl_t *sysctrl = (sysctrl_t *) (MMAP_CFG);
+	uchar msk;
+	char *suf;
+
+	puts("CPU:   ");
+	msk = (in_be32(&sysctrl->sc_dir) > 28) & 0xf;
+	switch (msk) {
+	case 0x2:
+		suf = "1K75N";
+		break;
+	case 0x4:
+		suf = "3K75N";
+		break;
+	default:
+		suf = NULL;
+		printf("Freescale MCF5272 (Mask:%01x)\n", msk);
+		break;
+	}
+
+	if (suf)
+		printf("Freescale MCF5272 %s\n", suf);
+	return 0;
+};
+
+#if defined(CONFIG_WATCHDOG)
+/* Called by macro WATCHDOG_RESET */
+void watchdog_reset(void)
+{
+	wdog_t *wdt = (wdog_t *)(MMAP_WDOG);
+
+	out_be16(&wdt->wdog_wcr, 0);
+}
+
+int watchdog_disable(void)
+{
+	wdog_t *wdt = (wdog_t *)(MMAP_WDOG);
+
+	/* reset watchdog counter */
+	out_be16(&wdt->wdog_wcr, 0);
+	/* disable watchdog interrupt */
+	out_be16(&wdt->wdog_wirr, 0);
+	/* disable watchdog timer */
+	out_be16(&wdt->wdog_wrrr, 0);
+
+	puts("WATCHDOG:disabled\n");
+	return (0);
+}
+
+int watchdog_init(void)
+{
+	wdog_t *wdt = (wdog_t *)(MMAP_WDOG);
+
+	/* disable watchdog interrupt */
+	out_be16(&wdt->wdog_wirr, 0);
+
+	/* set timeout and enable watchdog */
+	out_be16(&wdt->wdog_wrrr,
+		(CONFIG_WATCHDOG_TIMEOUT * CONFIG_SYS_HZ) / (32768 * 1000) - 1);
+
+	/* reset watchdog counter */
+	out_be16(&wdt->wdog_wcr, 0);
+
+	puts("WATCHDOG:enabled\n");
+	return (0);
+}
+#endif				/* #ifdef CONFIG_WATCHDOG */
+
+#endif				/* #ifdef CONFIG_M5272 */
+
+#ifdef	CONFIG_M5275
+int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+	rcm_t *rcm = (rcm_t *)(MMAP_RCM);
+
+	udelay(1000);
+
+	out_8(&rcm->rcr, RCM_RCR_SOFTRST);
+
+	/* we don't return! */
+	return 0;
+};
+
+int checkcpu(void)
+{
+	char buf[32];
+
+	printf("CPU:   Freescale Coldfire MCF5275 at %s MHz\n",
+			strmhz(buf, CONFIG_SYS_CLK));
+	return 0;
+};
+
+
+#if defined(CONFIG_WATCHDOG)
+/* Called by macro WATCHDOG_RESET */
+void watchdog_reset(void)
+{
+	wdog_t *wdt = (wdog_t *)(MMAP_WDOG);
+
+	out_be16(&wdt->wsr, 0x5555);
+	out_be16(&wdt->wsr, 0xaaaa);
+}
+
+int watchdog_disable(void)
+{
+	wdog_t *wdt = (wdog_t *)(MMAP_WDOG);
+
+	/* reset watchdog counter */
+	out_be16(&wdt->wsr, 0x5555);
+	out_be16(&wdt->wsr, 0xaaaa);
+
+	/* disable watchdog timer */
+	out_be16(&wdt->wcr, 0);
+
+	puts("WATCHDOG:disabled\n");
+	return (0);
+}
+
+int watchdog_init(void)
+{
+	wdog_t *wdt = (wdog_t *)(MMAP_WDOG);
+
+	/* disable watchdog */
+	out_be16(&wdt->wcr, 0);
+
+	/* set timeout and enable watchdog */
+	out_be16(&wdt->wmr,
+		(CONFIG_WATCHDOG_TIMEOUT * CONFIG_SYS_HZ) / (32768 * 1000) - 1);
+
+	/* reset watchdog counter */
+	out_be16(&wdt->wsr, 0x5555);
+	out_be16(&wdt->wsr, 0xaaaa);
+
+	puts("WATCHDOG:enabled\n");
+	return (0);
+}
+#endif				/* #ifdef CONFIG_WATCHDOG */
+
+#endif				/* #ifdef CONFIG_M5275 */
+
+#ifdef	CONFIG_M5282
+int checkcpu(void)
+{
+	unsigned char resetsource = MCFRESET_RSR;
+
+	printf("CPU:   Freescale Coldfire MCF5282 (PIN: %2.2x REV: %2.2x)\n",
+	       MCFCCM_CIR >> 8, MCFCCM_CIR & MCFCCM_CIR_PRN_MASK);
+	printf("Reset:%s%s%s%s%s%s%s\n",
+	       (resetsource & MCFRESET_RSR_LOL) ? " Loss of Lock" : "",
+	       (resetsource & MCFRESET_RSR_LOC) ? " Loss of Clock" : "",
+	       (resetsource & MCFRESET_RSR_EXT) ? " External" : "",
+	       (resetsource & MCFRESET_RSR_POR) ? " Power On" : "",
+	       (resetsource & MCFRESET_RSR_WDR) ? " Watchdog" : "",
+	       (resetsource & MCFRESET_RSR_SOFT) ? " Software" : "",
+	       (resetsource & MCFRESET_RSR_LVD) ? " Low Voltage" : "");
+	return 0;
+}
+
+int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+	MCFRESET_RCR = MCFRESET_RCR_SOFTRST;
+	return 0;
+};
+#endif
+
+#ifdef CONFIG_M5249
+int checkcpu(void)
+{
+	char buf[32];
+
+	printf("CPU:   Freescale Coldfire MCF5249 at %s MHz\n",
+	       strmhz(buf, CONFIG_SYS_CLK));
+	return 0;
+}
+
+int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+	/* enable watchdog, set timeout to 0 and wait */
+	mbar_writeByte(MCFSIM_SYPCR, 0xc0);
+	while (1) ;
+
+	/* we don't return! */
+	return 0;
+};
+#endif
+
+#ifdef CONFIG_M5253
+int checkcpu(void)
+{
+	char buf[32];
+
+	unsigned char resetsource = mbar_readLong(SIM_RSR);
+	printf("CPU:   Freescale Coldfire MCF5253 at %s MHz\n",
+	       strmhz(buf, CONFIG_SYS_CLK));
+
+	if ((resetsource & SIM_RSR_HRST) || (resetsource & SIM_RSR_SWTR)) {
+		printf("Reset:%s%s\n",
+		       (resetsource & SIM_RSR_HRST) ? " Hardware/ System Reset"
+		       : "",
+		       (resetsource & SIM_RSR_SWTR) ? " Software Watchdog" :
+		       "");
+	}
+	return 0;
+}
+
+int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+	/* enable watchdog, set timeout to 0 and wait */
+	mbar_writeByte(SIM_SYPCR, 0xc0);
+	while (1) ;
+
+	/* we don't return! */
+	return 0;
+};
+#endif
+
+#if defined(CONFIG_MCFFEC)
+/* Default initializations for MCFFEC controllers.  To override,
+ * create a board-specific function called:
+ * 	int board_eth_init(bd_t *bis)
+ */
+
+int cpu_eth_init(bd_t *bis)
+{
+	return mcffec_initialize(bis);
+}
+#endif

u-boot/arch/m68k/cpu/mcf52x2/cpu.h

@@ -0,0 +1,17 @@
+/*
+ *  cpu.h
+ *
+ *  Copyright (c) 2009 Freescale Semiconductor, Inc.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef _CPU_H_
+#define _CPU_H_
+
+#include <command.h>
+
+/* Use this to create board specific reset functions */
+void board_reset(void) __attribute__((__weak__));
+
+#endif /* _CPU_H_ */

u-boot/arch/m68k/cpu/mcf52x2/cpu_init.c

@@ -0,0 +1,750 @@
+/*
+ * (C) Copyright 2003
+ * Josef Baumgartner <josef.baumgartner@telex.de>
+ *
+ * MCF5282 additionals
+ * (C) Copyright 2005
+ * BuS Elektronik GmbH & Co. KG <esw@bus-elektronik.de>
+ * (c) Copyright 2010
+ * Arcturus Networks Inc. <www.arcturusnetworks.com>
+ *
+ * Copyright (C) 2004-2007, 2012 Freescale Semiconductor, Inc.
+ * TsiChung Liew (Tsi-Chung.Liew@freescale.com)
+ * Hayden Fraser (Hayden.Fraser@freescale.com)
+ *
+ * MCF5275 additions
+ * Copyright (C) 2008 Arthur Shipkowski (art@videon-central.com)
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <watchdog.h>
+#include <asm/immap.h>
+#include <asm/io.h>
+
+#if defined(CONFIG_CMD_NET)
+#include <config.h>
+#include <net.h>
+#include <asm/fec.h>
+#endif
+
+#ifndef CONFIG_M5272
+/* Only 5272 Flexbus chipselect is different from the rest */
+void init_fbcs(void)
+{
+	fbcs_t *fbcs = (fbcs_t *) (MMAP_FBCS);
+
+#if (defined(CONFIG_SYS_CS0_BASE) && defined(CONFIG_SYS_CS0_MASK) \
+     && defined(CONFIG_SYS_CS0_CTRL))
+	out_be32(&fbcs->csar0, CONFIG_SYS_CS0_BASE);
+	out_be32(&fbcs->cscr0, CONFIG_SYS_CS0_CTRL);
+	out_be32(&fbcs->csmr0, CONFIG_SYS_CS0_MASK);
+#else
+#warning "Chip Select 0 are not initialized/used"
+#endif
+#if (defined(CONFIG_SYS_CS1_BASE) && defined(CONFIG_SYS_CS1_MASK) \
+     && defined(CONFIG_SYS_CS1_CTRL))
+	out_be32(&fbcs->csar1, CONFIG_SYS_CS1_BASE);
+	out_be32(&fbcs->cscr1, CONFIG_SYS_CS1_CTRL);
+	out_be32(&fbcs->csmr1, CONFIG_SYS_CS1_MASK);
+#endif
+#if (defined(CONFIG_SYS_CS2_BASE) && defined(CONFIG_SYS_CS2_MASK) \
+     && defined(CONFIG_SYS_CS2_CTRL))
+	out_be32(&fbcs->csar2, CONFIG_SYS_CS2_BASE);
+	out_be32(&fbcs->cscr2, CONFIG_SYS_CS2_CTRL);
+	out_be32(&fbcs->csmr2, CONFIG_SYS_CS2_MASK);
+#endif
+#if (defined(CONFIG_SYS_CS3_BASE) && defined(CONFIG_SYS_CS3_MASK) \
+     && defined(CONFIG_SYS_CS3_CTRL))
+	out_be32(&fbcs->csar3, CONFIG_SYS_CS3_BASE);
+	out_be32(&fbcs->cscr3, CONFIG_SYS_CS3_CTRL);
+	out_be32(&fbcs->csmr3, CONFIG_SYS_CS3_MASK);
+#endif
+#if (defined(CONFIG_SYS_CS4_BASE) && defined(CONFIG_SYS_CS4_MASK) \
+     && defined(CONFIG_SYS_CS4_CTRL))
+	out_be32(&fbcs->csar4, CONFIG_SYS_CS4_BASE);
+	out_be32(&fbcs->cscr4, CONFIG_SYS_CS4_CTRL);
+	out_be32(&fbcs->csmr4, CONFIG_SYS_CS4_MASK);
+#endif
+#if (defined(CONFIG_SYS_CS5_BASE) && defined(CONFIG_SYS_CS5_MASK) \
+     && defined(CONFIG_SYS_CS5_CTRL))
+	out_be32(&fbcs->csar5, CONFIG_SYS_CS5_BASE);
+	out_be32(&fbcs->cscr5, CONFIG_SYS_CS5_CTRL);
+	out_be32(&fbcs->csmr5, CONFIG_SYS_CS5_MASK);
+#endif
+#if (defined(CONFIG_SYS_CS6_BASE) && defined(CONFIG_SYS_CS6_MASK) \
+     && defined(CONFIG_SYS_CS6_CTRL))
+	out_be32(&fbcs->csar6, CONFIG_SYS_CS6_BASE);
+	out_be32(&fbcs->cscr6, CONFIG_SYS_CS6_CTRL);
+	out_be32(&fbcs->csmr6, CONFIG_SYS_CS6_MASK);
+#endif
+#if (defined(CONFIG_SYS_CS7_BASE) && defined(CONFIG_SYS_CS7_MASK) \
+     && defined(CONFIG_SYS_CS7_CTRL))
+	out_be32(&fbcs->csar7, CONFIG_SYS_CS7_BASE);
+	out_be32(&fbcs->cscr7, CONFIG_SYS_CS7_CTRL);
+	out_be32(&fbcs->csmr7, CONFIG_SYS_CS7_MASK);
+#endif
+}
+#endif
+
+#if defined(CONFIG_M5208)
+void cpu_init_f(void)
+{
+	scm1_t *scm1 = (scm1_t *) MMAP_SCM1;
+
+#ifndef CONFIG_WATCHDOG
+	wdog_t *wdg = (wdog_t *) MMAP_WDOG;
+
+	/* Disable the watchdog if we aren't using it */
+	out_be16(&wdg->cr, 0);
+#endif
+
+	out_be32(&scm1->mpr, 0x77777777);
+	out_be32(&scm1->pacra, 0);
+	out_be32(&scm1->pacrb, 0);
+	out_be32(&scm1->pacrc, 0);
+	out_be32(&scm1->pacrd, 0);
+	out_be32(&scm1->pacre, 0);
+	out_be32(&scm1->pacrf, 0);
+
+	/* FlexBus Chipselect */
+	init_fbcs();
+
+	icache_enable();
+}
+
+/* initialize higher level parts of CPU like timers */
+int cpu_init_r(void)
+{
+	return (0);
+}
+
+void uart_port_conf(int port)
+{
+	gpio_t *gpio = (gpio_t *) MMAP_GPIO;
+
+	/* Setup Ports: */
+	switch (port) {
+	case 0:
+		clrbits_be16(&gpio->par_uart, ~GPIO_PAR_UART0_UNMASK);
+		setbits_be16(&gpio->par_uart, GPIO_PAR_UART_U0TXD | GPIO_PAR_UART_U0RXD);
+		break;
+	case 1:
+		clrbits_be16(&gpio->par_uart, ~GPIO_PAR_UART0_UNMASK);
+		setbits_be16(&gpio->par_uart, GPIO_PAR_UART_U1TXD | GPIO_PAR_UART_U1RXD);
+		break;
+	case 2:
+#ifdef CONFIG_SYS_UART2_PRI_GPIO
+		clrbits_8(&gpio->par_timer,
+			~(GPIO_PAR_TMR_TIN0_UNMASK | GPIO_PAR_TMR_TIN1_UNMASK));
+		setbits_8(&gpio->par_timer,
+			GPIO_PAR_TMR_TIN0_U2TXD | GPIO_PAR_TMR_TIN1_U2RXD);
+#endif
+#ifdef CONFIG_SYS_UART2_ALT1_GPIO
+		clrbits_8(&gpio->par_feci2c,
+			~(GPIO_PAR_FECI2C_MDC_UNMASK | GPIO_PAR_FECI2C_MDIO_UNMASK));
+		setbits_8(&gpio->par_feci2c,
+			GPIO_PAR_FECI2C_MDC_U2TXD | GPIO_PAR_FECI2C_MDIO_U2RXD);
+#endif
+#ifdef CONFIG_SYS_UART2_ALT1_GPIO
+		clrbits_8(&gpio->par_feci2c,
+			~(GPIO_PAR_FECI2C_SDA_UNMASK | GPIO_PAR_FECI2C_SCL_UNMASK));
+		setbits_8(&gpio->par_feci2c,
+			GPIO_PAR_FECI2C_SDA_U2TXD | GPIO_PAR_FECI2C_SCL_U2RXD);
+#endif
+		break;
+	}
+}
+
+#if defined(CONFIG_CMD_NET)
+int fecpin_setclear(struct eth_device *dev, int setclear)
+{
+	gpio_t *gpio = (gpio_t *) MMAP_GPIO;
+
+	if (setclear) {
+		setbits_8(&gpio->par_fec,
+			GPIO_PAR_FEC_7W_FEC | GPIO_PAR_FEC_MII_FEC);
+		setbits_8(&gpio->par_feci2c,
+			GPIO_PAR_FECI2C_MDC_MDC | GPIO_PAR_FECI2C_MDIO_MDIO);
+	} else {
+		clrbits_8(&gpio->par_fec,
+			~(GPIO_PAR_FEC_7W_UNMASK & GPIO_PAR_FEC_MII_UNMASK));
+		clrbits_8(&gpio->par_feci2c, ~GPIO_PAR_FECI2C_RMII_UNMASK);
+	}
+	return 0;
+}
+#endif				/* CONFIG_CMD_NET */
+#endif				/* CONFIG_M5208 */
+
+#if defined(CONFIG_M5253)
+/*
+ * Breath some life into the CPU...
+ *
+ * Set up the memory map,
+ * initialize a bunch of registers,
+ * initialize the UPM's
+ */
+void cpu_init_f(void)
+{
+	mbar_writeByte(MCFSIM_MPARK, 0x40);	/* 5249 Internal Core takes priority over DMA */
+	mbar_writeByte(MCFSIM_SYPCR, 0x00);
+	mbar_writeByte(MCFSIM_SWIVR, 0x0f);
+	mbar_writeByte(MCFSIM_SWSR, 0x00);
+	mbar_writeByte(MCFSIM_SWDICR, 0x00);
+	mbar_writeByte(MCFSIM_TIMER1ICR, 0x00);
+	mbar_writeByte(MCFSIM_TIMER2ICR, 0x88);
+	mbar_writeByte(MCFSIM_I2CICR, 0x00);
+	mbar_writeByte(MCFSIM_UART1ICR, 0x00);
+	mbar_writeByte(MCFSIM_UART2ICR, 0x00);
+	mbar_writeByte(MCFSIM_ICR6, 0x00);
+	mbar_writeByte(MCFSIM_ICR7, 0x00);
+	mbar_writeByte(MCFSIM_ICR8, 0x00);
+	mbar_writeByte(MCFSIM_ICR9, 0x00);
+	mbar_writeByte(MCFSIM_QSPIICR, 0x00);
+
+	mbar2_writeLong(MCFSIM_GPIO_INT_EN, 0x00000080);
+	mbar2_writeByte(MCFSIM_INTBASE, 0x40);	/* Base interrupts at 64 */
+	mbar2_writeByte(MCFSIM_SPURVEC, 0x00);
+
+	/*mbar2_writeLong(MCFSIM_IDECONFIG1, 0x00000020); */ /* Enable a 1 cycle pre-drive cycle on CS1 */
+
+	/* FlexBus Chipselect */
+	init_fbcs();
+
+#ifdef CONFIG_SYS_I2C_FSL
+	CONFIG_SYS_I2C_PINMUX_REG =
+	    CONFIG_SYS_I2C_PINMUX_REG & CONFIG_SYS_I2C_PINMUX_CLR;
+	CONFIG_SYS_I2C_PINMUX_REG |= CONFIG_SYS_I2C_PINMUX_SET;
+#ifdef CONFIG_SYS_I2C2_OFFSET
+	CONFIG_SYS_I2C2_PINMUX_REG &= CONFIG_SYS_I2C2_PINMUX_CLR;
+	CONFIG_SYS_I2C2_PINMUX_REG |= CONFIG_SYS_I2C2_PINMUX_SET;
+#endif
+#endif
+
+	/* enable instruction cache now */
+	icache_enable();
+}
+
+/*initialize higher level parts of CPU like timers */
+int cpu_init_r(void)
+{
+	return (0);
+}
+
+void uart_port_conf(int port)
+{
+	u32 *par = (u32 *) MMAP_PAR;
+
+	/* Setup Ports: */
+	switch (port) {
+	case 1:
+		clrbits_be32(par, 0x00180000);
+		setbits_be32(par, 0x00180000);
+		break;
+	case 2:
+		clrbits_be32(par, 0x00000003);
+		clrbits_be32(par, 0xFFFFFFFC);
+		break;
+	}
+}
+#endif				/* #if defined(CONFIG_M5253) */
+
+#if defined(CONFIG_M5271)
+void cpu_init_f(void)
+{
+#ifndef CONFIG_WATCHDOG
+	/* Disable the watchdog if we aren't using it */
+	mbar_writeShort(MCF_WTM_WCR, 0);
+#endif
+
+	/* FlexBus Chipselect */
+	init_fbcs();
+
+#ifdef CONFIG_SYS_MCF_SYNCR
+	/* Set clockspeed according to board header file */
+	mbar_writeLong(MCF_FMPLL_SYNCR, CONFIG_SYS_MCF_SYNCR);
+#else
+	/* Set clockspeed to 100MHz */
+	mbar_writeLong(MCF_FMPLL_SYNCR,
+			MCF_FMPLL_SYNCR_MFD(0) | MCF_FMPLL_SYNCR_RFD(0));
+#endif
+	while (!(mbar_readByte(MCF_FMPLL_SYNSR) & MCF_FMPLL_SYNSR_LOCK)) ;
+}
+
+/*
+ * initialize higher level parts of CPU like timers
+ */
+int cpu_init_r(void)
+{
+	return (0);
+}
+
+void uart_port_conf(int port)
+{
+	u16 temp;
+
+	/* Setup Ports: */
+	switch (port) {
+	case 0:
+		temp = mbar_readShort(MCF_GPIO_PAR_UART) & 0xFFF3;
+		temp |= (MCF_GPIO_PAR_UART_U0TXD | MCF_GPIO_PAR_UART_U0RXD);
+		mbar_writeShort(MCF_GPIO_PAR_UART, temp);
+		break;
+	case 1:
+		temp = mbar_readShort(MCF_GPIO_PAR_UART) & 0xF0FF;
+		temp |= (MCF_GPIO_PAR_UART_U1RXD_UART1 | MCF_GPIO_PAR_UART_U1TXD_UART1);
+		mbar_writeShort(MCF_GPIO_PAR_UART, temp);
+		break;
+	case 2:
+		temp = mbar_readShort(MCF_GPIO_PAR_UART) & 0xCFFF;
+		temp |= (0x3000);
+		mbar_writeShort(MCF_GPIO_PAR_UART, temp);
+		break;
+	}
+}
+
+#if defined(CONFIG_CMD_NET)
+int fecpin_setclear(struct eth_device *dev, int setclear)
+{
+	if (setclear) {
+		/* Enable Ethernet pins */
+		mbar_writeByte(MCF_GPIO_PAR_FECI2C,
+			       (mbar_readByte(MCF_GPIO_PAR_FECI2C) | 0xF0));
+	} else {
+	}
+
+	return 0;
+}
+#endif				/* CONFIG_CMD_NET */
+
+#if defined(CONFIG_CF_QSPI)
+
+/* Configure PIOs for SIN, SOUT, and SCK */
+void cfspi_port_conf(void)
+{
+	mbar_writeByte(MCF_GPIO_PAR_QSPI,
+		       MCF_GPIO_PAR_QSPI_SIN_SIN   |
+		       MCF_GPIO_PAR_QSPI_SOUT_SOUT |
+		       MCF_GPIO_PAR_QSPI_SCK_SCK);
+}
+#endif				/* CONFIG_CF_QSPI */
+
+#endif				/* CONFIG_M5271 */
+
+#if defined(CONFIG_M5272)
+/*
+ * Breath some life into the CPU...
+ *
+ * Set up the memory map,
+ * initialize a bunch of registers,
+ * initialize the UPM's
+ */
+void cpu_init_f(void)
+{
+	/* if we come from RAM we assume the CPU is
+	 * already initialized.
+	 */
+#ifndef CONFIG_MONITOR_IS_IN_RAM
+	sysctrl_t *sysctrl = (sysctrl_t *) (CONFIG_SYS_MBAR);
+	gpio_t *gpio = (gpio_t *) (MMAP_GPIO);
+	csctrl_t *csctrl = (csctrl_t *) (MMAP_FBCS);
+
+	out_be16(&sysctrl->sc_scr, CONFIG_SYS_SCR);
+	out_be16(&sysctrl->sc_spr, CONFIG_SYS_SPR);
+
+	/* Setup Ports: */
+	out_be32(&gpio->gpio_pacnt, CONFIG_SYS_PACNT);
+	out_be16(&gpio->gpio_paddr, CONFIG_SYS_PADDR);
+	out_be16(&gpio->gpio_padat, CONFIG_SYS_PADAT);
+	out_be32(&gpio->gpio_pbcnt, CONFIG_SYS_PBCNT);
+	out_be16(&gpio->gpio_pbddr, CONFIG_SYS_PBDDR);
+	out_be16(&gpio->gpio_pbdat, CONFIG_SYS_PBDAT);
+	out_be32(&gpio->gpio_pdcnt, CONFIG_SYS_PDCNT);
+
+	/* Memory Controller: */
+	out_be32(&csctrl->cs_br0, CONFIG_SYS_BR0_PRELIM);
+	out_be32(&csctrl->cs_or0, CONFIG_SYS_OR0_PRELIM);
+
+#if (defined(CONFIG_SYS_OR1_PRELIM) && defined(CONFIG_SYS_BR1_PRELIM))
+	out_be32(&csctrl->cs_br1, CONFIG_SYS_BR1_PRELIM);
+	out_be32(&csctrl->cs_or1, CONFIG_SYS_OR1_PRELIM);
+#endif
+
+#if defined(CONFIG_SYS_OR2_PRELIM) && defined(CONFIG_SYS_BR2_PRELIM)
+	out_be32(&csctrl->cs_br2, CONFIG_SYS_BR2_PRELIM);
+	out_be32(&csctrl->cs_or2, CONFIG_SYS_OR2_PRELIM);
+#endif
+
+#if defined(CONFIG_SYS_OR3_PRELIM) && defined(CONFIG_SYS_BR3_PRELIM)
+	out_be32(&csctrl->cs_br3, CONFIG_SYS_BR3_PRELIM);
+	out_be32(&csctrl->cs_or3, CONFIG_SYS_OR3_PRELIM);
+#endif
+
+#if defined(CONFIG_SYS_OR4_PRELIM) && defined(CONFIG_SYS_BR4_PRELIM)
+	out_be32(&csctrl->cs_br4, CONFIG_SYS_BR4_PRELIM);
+	out_be32(&csctrl->cs_or4, CONFIG_SYS_OR4_PRELIM);
+#endif
+
+#if defined(CONFIG_SYS_OR5_PRELIM) && defined(CONFIG_SYS_BR5_PRELIM)
+	out_be32(&csctrl->cs_br5, CONFIG_SYS_BR5_PRELIM);
+	out_be32(&csctrl->cs_or5, CONFIG_SYS_OR5_PRELIM);
+#endif
+
+#if defined(CONFIG_SYS_OR6_PRELIM) && defined(CONFIG_SYS_BR6_PRELIM)
+	out_be32(&csctrl->cs_br6, CONFIG_SYS_BR6_PRELIM);
+	out_be32(&csctrl->cs_or6, CONFIG_SYS_OR6_PRELIM);
+#endif
+
+#if defined(CONFIG_SYS_OR7_PRELIM) && defined(CONFIG_SYS_BR7_PRELIM)
+	out_be32(&csctrl->cs_br7, CONFIG_SYS_BR7_PRELIM);
+	out_be32(&csctrl->cs_or7, CONFIG_SYS_OR7_PRELIM);
+#endif
+
+#endif				/* #ifndef CONFIG_MONITOR_IS_IN_RAM */
+
+	/* enable instruction cache now */
+	icache_enable();
+
+}
+
+/*
+ * initialize higher level parts of CPU like timers
+ */
+int cpu_init_r(void)
+{
+	return (0);
+}
+
+void uart_port_conf(int port)
+{
+	gpio_t *gpio = (gpio_t *) MMAP_GPIO;
+
+	/* Setup Ports: */
+	switch (port) {
+	case 0:
+		clrbits_be32(&gpio->gpio_pbcnt,
+			GPIO_PBCNT_PB0MSK | GPIO_PBCNT_PB1MSK);
+		setbits_be32(&gpio->gpio_pbcnt,
+			GPIO_PBCNT_URT0_TXD | GPIO_PBCNT_URT0_RXD);
+		break;
+	case 1:
+		clrbits_be32(&gpio->gpio_pdcnt,
+			GPIO_PDCNT_PD1MSK | GPIO_PDCNT_PD4MSK);
+		setbits_be32(&gpio->gpio_pdcnt,
+			GPIO_PDCNT_URT1_RXD | GPIO_PDCNT_URT1_TXD);
+		break;
+	}
+}
+
+#if defined(CONFIG_CMD_NET)
+int fecpin_setclear(struct eth_device *dev, int setclear)
+{
+	gpio_t *gpio = (gpio_t *) MMAP_GPIO;
+
+	if (setclear) {
+		setbits_be32(&gpio->gpio_pbcnt,
+			GPIO_PBCNT_E_MDC | GPIO_PBCNT_E_RXER |
+			GPIO_PBCNT_E_RXD1 | GPIO_PBCNT_E_RXD2 |
+			GPIO_PBCNT_E_RXD3 | GPIO_PBCNT_E_TXD1 |
+			GPIO_PBCNT_E_TXD2 | GPIO_PBCNT_E_TXD3);
+	} else {
+	}
+	return 0;
+}
+#endif				/* CONFIG_CMD_NET */
+#endif				/* #if defined(CONFIG_M5272) */
+
+#if defined(CONFIG_M5275)
+
+/*
+ * Breathe some life into the CPU...
+ *
+ * Set up the memory map,
+ * initialize a bunch of registers,
+ * initialize the UPM's
+ */
+void cpu_init_f(void)
+{
+	/*
+	 * if we come from RAM we assume the CPU is
+	 * already initialized.
+	 */
+
+#ifndef CONFIG_MONITOR_IS_IN_RAM
+	wdog_t *wdog_reg = (wdog_t *) (MMAP_WDOG);
+	gpio_t *gpio_reg = (gpio_t *) (MMAP_GPIO);
+
+	/* Kill watchdog so we can initialize the PLL */
+	out_be16(&wdog_reg->wcr, 0);
+
+	/* FlexBus Chipselect */
+	init_fbcs();
+#endif				/* #ifndef CONFIG_MONITOR_IS_IN_RAM */
+
+#ifdef CONFIG_SYS_I2C_FSL
+	CONFIG_SYS_I2C_PINMUX_REG &= CONFIG_SYS_I2C_PINMUX_CLR;
+	CONFIG_SYS_I2C_PINMUX_REG |= CONFIG_SYS_I2C_PINMUX_SET;
+#endif
+
+	/* enable instruction cache now */
+	icache_enable();
+}
+
+/*
+ * initialize higher level parts of CPU like timers
+ */
+int cpu_init_r(void)
+{
+	return (0);
+}
+
+void uart_port_conf(int port)
+{
+	gpio_t *gpio = (gpio_t *) MMAP_GPIO;
+
+	/* Setup Ports: */
+	switch (port) {
+	case 0:
+		clrbits_be16(&gpio->par_uart, UART0_ENABLE_MASK);
+		setbits_be16(&gpio->par_uart, UART0_ENABLE_MASK);
+		break;
+	case 1:
+		clrbits_be16(&gpio->par_uart, UART1_ENABLE_MASK);
+		setbits_be16(&gpio->par_uart, UART1_ENABLE_MASK);
+		break;
+	case 2:
+		clrbits_be16(&gpio->par_uart, UART2_ENABLE_MASK);
+		setbits_be16(&gpio->par_uart, UART2_ENABLE_MASK);
+		break;
+	}
+}
+
+#if defined(CONFIG_CMD_NET)
+int fecpin_setclear(struct eth_device *dev, int setclear)
+{
+	struct fec_info_s *info = (struct fec_info_s *) dev->priv;
+	gpio_t *gpio = (gpio_t *)MMAP_GPIO;
+
+	if (setclear) {
+		/* Enable Ethernet pins */
+		if (info->iobase == CONFIG_SYS_FEC0_IOBASE) {
+			setbits_be16(&gpio->par_feci2c, 0x0f00);
+			setbits_8(&gpio->par_fec0hl, 0xc0);
+		} else {
+			setbits_be16(&gpio->par_feci2c, 0x00a0);
+			setbits_8(&gpio->par_fec1hl, 0xc0);
+		}
+	} else {
+		if (info->iobase == CONFIG_SYS_FEC0_IOBASE) {
+			clrbits_be16(&gpio->par_feci2c, 0x0f00);
+			clrbits_8(&gpio->par_fec0hl, 0xc0);
+		} else {
+			clrbits_be16(&gpio->par_feci2c, 0x00a0);
+			clrbits_8(&gpio->par_fec1hl, 0xc0);
+		}
+	}
+
+	return 0;
+}
+#endif				/* CONFIG_CMD_NET */
+#endif				/* #if defined(CONFIG_M5275) */
+
+#if defined(CONFIG_M5282)
+/*
+ * Breath some life into the CPU...
+ *
+ * Set up the memory map,
+ * initialize a bunch of registers,
+ * initialize the UPM's
+ */
+void cpu_init_f(void)
+{
+#ifndef CONFIG_WATCHDOG
+	/* disable watchdog if we aren't using it */
+	MCFWTM_WCR = 0;
+#endif
+
+#ifndef CONFIG_MONITOR_IS_IN_RAM
+	/* Set speed /PLL */
+	MCFCLOCK_SYNCR =
+	    MCFCLOCK_SYNCR_MFD(CONFIG_SYS_MFD) |
+	    MCFCLOCK_SYNCR_RFD(CONFIG_SYS_RFD);
+	while (!(MCFCLOCK_SYNSR & MCFCLOCK_SYNSR_LOCK)) ;
+
+	MCFGPIO_PBCDPAR = 0xc0;
+
+	/* Set up the GPIO ports */
+#ifdef CONFIG_SYS_PEPAR
+	MCFGPIO_PEPAR = CONFIG_SYS_PEPAR;
+#endif
+#ifdef	CONFIG_SYS_PFPAR
+	MCFGPIO_PFPAR = CONFIG_SYS_PFPAR;
+#endif
+#ifdef CONFIG_SYS_PJPAR
+	MCFGPIO_PJPAR = CONFIG_SYS_PJPAR;
+#endif
+#ifdef CONFIG_SYS_PSDPAR
+	MCFGPIO_PSDPAR = CONFIG_SYS_PSDPAR;
+#endif
+#ifdef CONFIG_SYS_PASPAR
+	MCFGPIO_PASPAR = CONFIG_SYS_PASPAR;
+#endif
+#ifdef CONFIG_SYS_PEHLPAR
+	MCFGPIO_PEHLPAR = CONFIG_SYS_PEHLPAR;
+#endif
+#ifdef CONFIG_SYS_PQSPAR
+	MCFGPIO_PQSPAR = CONFIG_SYS_PQSPAR;
+#endif
+#ifdef CONFIG_SYS_PTCPAR
+	MCFGPIO_PTCPAR = CONFIG_SYS_PTCPAR;
+#endif
+#if defined(CONFIG_SYS_PORTTC)
+	MCFGPIO_PORTTC = CONFIG_SYS_PORTTC;
+#endif
+#if defined(CONFIG_SYS_DDRTC)
+	MCFGPIO_DDRTC  = CONFIG_SYS_DDRTC;
+#endif
+#ifdef CONFIG_SYS_PTDPAR
+	MCFGPIO_PTDPAR = CONFIG_SYS_PTDPAR;
+#endif
+#ifdef CONFIG_SYS_PUAPAR
+	MCFGPIO_PUAPAR = CONFIG_SYS_PUAPAR;
+#endif
+
+#if defined(CONFIG_SYS_DDRD)
+	MCFGPIO_DDRD = CONFIG_SYS_DDRD;
+#endif
+#ifdef CONFIG_SYS_DDRUA
+	MCFGPIO_DDRUA = CONFIG_SYS_DDRUA;
+#endif
+
+	/* FlexBus Chipselect */
+	init_fbcs();
+
+#endif				/* CONFIG_MONITOR_IS_IN_RAM */
+
+	/* defer enabling cache until boot (see do_go) */
+	/* icache_enable(); */
+}
+
+/*
+ * initialize higher level parts of CPU like timers
+ */
+int cpu_init_r(void)
+{
+	return (0);
+}
+
+void uart_port_conf(int port)
+{
+	/* Setup Ports: */
+	switch (port) {
+	case 0:
+		MCFGPIO_PUAPAR &= 0xFc;
+		MCFGPIO_PUAPAR |= 0x03;
+		break;
+	case 1:
+		MCFGPIO_PUAPAR &= 0xF3;
+		MCFGPIO_PUAPAR |= 0x0C;
+		break;
+	case 2:
+		MCFGPIO_PASPAR &= 0xFF0F;
+		MCFGPIO_PASPAR |= 0x00A0;
+		break;
+	}
+}
+
+#if defined(CONFIG_CMD_NET)
+int fecpin_setclear(struct eth_device *dev, int setclear)
+{
+	if (setclear) {
+		MCFGPIO_PASPAR |= 0x0F00;
+		MCFGPIO_PEHLPAR = CONFIG_SYS_PEHLPAR;
+	} else {
+		MCFGPIO_PASPAR &= 0xF0FF;
+		MCFGPIO_PEHLPAR &= ~CONFIG_SYS_PEHLPAR;
+	}
+	return 0;
+}
+#endif			/* CONFIG_CMD_NET */
+#endif
+
+#if defined(CONFIG_M5249)
+/*
+ * Breath some life into the CPU...
+ *
+ * Set up the memory map,
+ * initialize a bunch of registers,
+ * initialize the UPM's
+ */
+void cpu_init_f(void)
+{
+	/*
+	 *  NOTE: by setting the GPIO_FUNCTION registers, we ensure that the UART pins
+	 *        (UART0: gpio 30,27, UART1: gpio 31, 28) will be used as UART pins
+	 *        which is their primary function.
+	 *        ~Jeremy
+	 */
+	mbar2_writeLong(MCFSIM_GPIO_FUNC, CONFIG_SYS_GPIO_FUNC);
+	mbar2_writeLong(MCFSIM_GPIO1_FUNC, CONFIG_SYS_GPIO1_FUNC);
+	mbar2_writeLong(MCFSIM_GPIO_EN, CONFIG_SYS_GPIO_EN);
+	mbar2_writeLong(MCFSIM_GPIO1_EN, CONFIG_SYS_GPIO1_EN);
+	mbar2_writeLong(MCFSIM_GPIO_OUT, CONFIG_SYS_GPIO_OUT);
+	mbar2_writeLong(MCFSIM_GPIO1_OUT, CONFIG_SYS_GPIO1_OUT);
+
+	/*
+	 *  dBug Compliance:
+	 *    You can verify these values by using dBug's 'ird'
+	 *    (Internal Register Display) command
+	 *    ~Jeremy
+	 *
+	 */
+	mbar_writeByte(MCFSIM_MPARK, 0x30);	/* 5249 Internal Core takes priority over DMA */
+	mbar_writeByte(MCFSIM_SYPCR, 0x00);
+	mbar_writeByte(MCFSIM_SWIVR, 0x0f);
+	mbar_writeByte(MCFSIM_SWSR, 0x00);
+	mbar_writeLong(MCFSIM_IMR, 0xfffffbff);
+	mbar_writeByte(MCFSIM_SWDICR, 0x00);
+	mbar_writeByte(MCFSIM_TIMER1ICR, 0x00);
+	mbar_writeByte(MCFSIM_TIMER2ICR, 0x88);
+	mbar_writeByte(MCFSIM_I2CICR, 0x00);
+	mbar_writeByte(MCFSIM_UART1ICR, 0x00);
+	mbar_writeByte(MCFSIM_UART2ICR, 0x00);
+	mbar_writeByte(MCFSIM_ICR6, 0x00);
+	mbar_writeByte(MCFSIM_ICR7, 0x00);
+	mbar_writeByte(MCFSIM_ICR8, 0x00);
+	mbar_writeByte(MCFSIM_ICR9, 0x00);
+	mbar_writeByte(MCFSIM_QSPIICR, 0x00);
+
+	mbar2_writeLong(MCFSIM_GPIO_INT_EN, 0x00000080);
+	mbar2_writeByte(MCFSIM_INTBASE, 0x40);	/* Base interrupts at 64 */
+	mbar2_writeByte(MCFSIM_SPURVEC, 0x00);
+	mbar2_writeLong(MCFSIM_IDECONFIG1, 0x00000020);	/* Enable a 1 cycle pre-drive cycle on CS1 */
+
+	/* Setup interrupt priorities for gpio7 */
+	/* mbar2_writeLong(MCFSIM_INTLEV5, 0x70000000); */
+
+	/* IDE Config registers */
+	mbar2_writeLong(MCFSIM_IDECONFIG1, 0x00000020);
+	mbar2_writeLong(MCFSIM_IDECONFIG2, 0x00000000);
+
+	/* FlexBus Chipselect */
+	init_fbcs();
+
+	/* enable instruction cache now */
+	icache_enable();
+}
+
+/*
+ * initialize higher level parts of CPU like timers
+ */
+int cpu_init_r(void)
+{
+	return (0);
+}
+
+void uart_port_conf(int port)
+{
+}
+#endif				/* #if defined(CONFIG_M5249) */

u-boot/arch/m68k/cpu/mcf52x2/interrupts.c

@@ -0,0 +1,93 @@
+/*
+ * (C) Copyright 2000-2004
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * Copyright (C) 2004-2007, 2012 Freescale Semiconductor, Inc.
+ * TsiChung Liew (Tsi-Chung.Liew@freescale.com)
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <watchdog.h>
+#include <asm/processor.h>
+#include <asm/immap.h>
+#include <asm/io.h>
+
+#ifdef	CONFIG_M5272
+int interrupt_init(void)
+{
+	intctrl_t *intp = (intctrl_t *) (MMAP_INTC);
+
+	/* disable all external interrupts */
+	out_be32(&intp->int_icr1, 0x88888888);
+	out_be32(&intp->int_icr2, 0x88888888);
+	out_be32(&intp->int_icr3, 0x88888888);
+	out_be32(&intp->int_icr4, 0x88888888);
+	out_be32(&intp->int_pitr, 0x00000000);
+
+	/* initialize vector register */
+	out_8(&intp->int_pivr, 0x40);
+
+	enable_interrupts();
+
+	return 0;
+}
+
+#if defined(CONFIG_MCFTMR)
+void dtimer_intr_setup(void)
+{
+	intctrl_t *intp = (intctrl_t *) (CONFIG_SYS_INTR_BASE);
+
+	clrbits_be32(&intp->int_icr1, INT_ICR1_TMR3MASK);
+	setbits_be32(&intp->int_icr1, CONFIG_SYS_TMRINTR_PRI);
+}
+#endif				/* CONFIG_MCFTMR */
+#endif				/* CONFIG_M5272 */
+
+#if defined(CONFIG_M5208) || defined(CONFIG_M5282) || \
+    defined(CONFIG_M5271) || defined(CONFIG_M5275)
+int interrupt_init(void)
+{
+	int0_t *intp = (int0_t *) (CONFIG_SYS_INTR_BASE);
+
+	/* Make sure all interrupts are disabled */
+#if defined(CONFIG_M5208)
+	out_be32(&intp->imrl0, 0xffffffff);
+	out_be32(&intp->imrh0, 0xffffffff);
+#else
+	setbits_be32(&intp->imrl0, 0x1);
+#endif
+
+	enable_interrupts();
+	return 0;
+}
+
+#if defined(CONFIG_MCFTMR)
+void dtimer_intr_setup(void)
+{
+	int0_t *intp = (int0_t *) (CONFIG_SYS_INTR_BASE);
+
+	out_8(&intp->icr0[CONFIG_SYS_TMRINTR_NO], CONFIG_SYS_TMRINTR_PRI);
+	clrbits_be32(&intp->imrl0, 0x00000001);
+	clrbits_be32(&intp->imrl0, CONFIG_SYS_TMRINTR_MASK);
+}
+#endif				/* CONFIG_MCFTMR */
+#endif				/* CONFIG_M5282 | CONFIG_M5271 | CONFIG_M5275 */
+
+#if defined(CONFIG_M5249) || defined(CONFIG_M5253)
+int interrupt_init(void)
+{
+	enable_interrupts();
+
+	return 0;
+}
+
+#if defined(CONFIG_MCFTMR)
+void dtimer_intr_setup(void)
+{
+	mbar_writeLong(MCFSIM_IMR, mbar_readLong(MCFSIM_IMR) & ~0x00000400);
+	mbar_writeByte(MCFSIM_TIMER2ICR, CONFIG_SYS_TMRINTR_PRI);
+}
+#endif				/* CONFIG_MCFTMR */
+#endif				/* CONFIG_M5249 || CONFIG_M5253 */

u-boot/arch/m68k/cpu/mcf52x2/speed.c

@@ -0,0 +1,85 @@
+/*
+ * (C) Copyright 2003
+ * Josef Baumgartner <josef.baumgartner@telex.de>
+ *
+ * Copyright (C) 2004-2007, 2012 Freescale Semiconductor, Inc.
+ * Hayden Fraser (Hayden.Fraser@freescale.com)
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/processor.h>
+#include <asm/immap.h>
+#include <asm/io.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/* get_clocks() fills in gd->cpu_clock and gd->bus_clk */
+int get_clocks (void)
+{
+#if defined(CONFIG_M5208)
+	pll_t *pll = (pll_t *) MMAP_PLL;
+
+	out_8(&pll->odr, CONFIG_SYS_PLL_ODR);
+	out_8(&pll->fdr, CONFIG_SYS_PLL_FDR);
+#endif
+
+#if defined(CONFIG_M5249) || defined(CONFIG_M5253)
+	volatile unsigned long cpll = mbar2_readLong(MCFSIM_PLLCR);
+	unsigned long pllcr;
+
+#ifndef CONFIG_SYS_PLL_BYPASS
+
+#ifdef CONFIG_M5249
+	/* Setup the PLL to run at the specified speed */
+#ifdef CONFIG_SYS_FAST_CLK
+	pllcr = 0x925a3100;	/* ~140MHz clock (PLL bypass = 0) */
+#else
+	pllcr = 0x135a4140;	/* ~72MHz clock (PLL bypass = 0) */
+#endif
+#endif				/* CONFIG_M5249 */
+
+#ifdef CONFIG_M5253
+	pllcr = CONFIG_SYS_PLLCR;
+#endif				/* CONFIG_M5253 */
+
+	cpll = cpll & 0xfffffffe;	/* Set PLL bypass mode = 0 (PSTCLK = crystal) */
+	mbar2_writeLong(MCFSIM_PLLCR, cpll);	/* Set the PLL to bypass mode (PSTCLK = crystal) */
+	mbar2_writeLong(MCFSIM_PLLCR, pllcr);	/* set the clock speed */
+	pllcr ^= 0x00000001;	/* Set pll bypass to 1 */
+	mbar2_writeLong(MCFSIM_PLLCR, pllcr);	/* Start locking (pll bypass = 1) */
+	udelay(0x20);		/* Wait for a lock ... */
+#endif				/* #ifndef CONFIG_SYS_PLL_BYPASS */
+
+#endif				/* CONFIG_M5249 || CONFIG_M5253 */
+
+#if defined(CONFIG_M5275)
+	pll_t *pll = (pll_t *)(MMAP_PLL);
+
+	/* Setup PLL */
+	out_be32(&pll->syncr, 0x01080000);
+	while (!(in_be32(&pll->synsr) & FMPLL_SYNSR_LOCK))
+		;
+	out_be32(&pll->syncr, 0x01000000);
+	while (!(in_be32(&pll->synsr) & FMPLL_SYNSR_LOCK))
+		;
+#endif
+
+	gd->cpu_clk = CONFIG_SYS_CLK;
+#if defined(CONFIG_M5208) || defined(CONFIG_M5249) || defined(CONFIG_M5253) || \
+    defined(CONFIG_M5271) || defined(CONFIG_M5275)
+	gd->bus_clk = gd->cpu_clk / 2;
+#else
+	gd->bus_clk = gd->cpu_clk;
+#endif
+
+#ifdef CONFIG_SYS_I2C_FSL
+	gd->arch.i2c1_clk = gd->bus_clk;
+#ifdef CONFIG_SYS_I2C2_FSL_OFFSET
+	gd->arch.i2c2_clk = gd->bus_clk;
+#endif
+#endif
+
+	return (0);
+}

u-boot/arch/m68k/cpu/mcf52x2/start.S

@@ -0,0 +1,339 @@
+/*
+ * Copyright (C) 2003	Josef Baumgartner <josef.baumgartner@telex.de>
+ * Based on code from Bernhard Kuhn <bkuhn@metrowerks.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <asm-offsets.h>
+#include <config.h>
+#include "version.h"
+#include <asm/cache.h>
+
+#ifndef	 CONFIG_IDENT_STRING
+#define	 CONFIG_IDENT_STRING ""
+#endif
+
+#define _START	_start
+#define _FAULT	_fault
+
+
+#define SAVE_ALL						\
+	move.w	#0x2700,%sr;		/* disable intrs */	\
+	subl	#60,%sp;		/* space for 15 regs */ \
+	moveml	%d0-%d7/%a0-%a6,%sp@;				\
+
+#define RESTORE_ALL						\
+	moveml	%sp@,%d0-%d7/%a0-%a6;				\
+	addl	#60,%sp;		/* space for 15 regs */ \
+	rte
+
+/* If we come from a pre-loader we don't need an initial exception
+ * table.
+ */
+#if !defined(CONFIG_MONITOR_IS_IN_RAM)
+
+.text
+/*
+ *	Vector table. This is used for initial platform startup.
+ *	These vectors are to catch any un-intended traps.
+ */
+_vectors:
+
+.long	0x00000000		/* Flash offset is 0 until we setup CS0 */
+#if defined(CONFIG_M5282) && (CONFIG_SYS_TEXT_BASE == CONFIG_SYS_INT_FLASH_BASE)
+.long	_start - CONFIG_SYS_TEXT_BASE
+#else
+.long	_START
+#endif
+
+.long	_FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
+.long	_FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
+.long	_FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
+.long	_FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
+.long	_FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
+.long	_FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
+.long	_FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
+.long	_FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
+
+.long	_FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
+.long	_FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
+.long	_FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
+.long	_FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
+.long	_FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
+.long	_FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
+.long	_FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
+.long	_FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
+
+.long	_FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
+.long	_FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
+.long	_FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
+.long	_FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
+.long	_FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
+.long	_FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
+.long	_FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
+.long	_FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
+
+.long	_FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
+.long	_FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
+.long	_FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
+.long	_FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
+.long	_FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
+.long	_FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
+.long	_FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
+.long	_FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
+
+#endif
+
+	.text
+
+
+#if defined(CONFIG_SYS_INT_FLASH_BASE) && \
+    (defined(CONFIG_M5282) || defined(CONFIG_M5281))
+	#if (CONFIG_SYS_TEXT_BASE == CONFIG_SYS_INT_FLASH_BASE)
+		.long	0x55AA55AA,0xAA55AA55 /* CFM Backdoorkey */
+		.long	0xFFFFFFFF /* all sectors protected */
+		.long	0x00000000 /* supervisor/User restriction */
+		.long	0x00000000 /* programm/data space restriction */
+		.long	0x00000000 /* Flash security */
+	#endif
+#endif
+	.globl	_start
+_start:
+	nop
+	nop
+	move.w #0x2700,%sr
+
+#if defined(CONFIG_M5208)
+	/* Initialize RAMBAR: locate SRAM and validate it */
+	move.l	#(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_RAM_CTRL), %d0
+	movec	%d0, %RAMBAR1
+#endif
+
+#if defined(CONFIG_M5272) || defined(CONFIG_M5249) || defined(CONFIG_M5253)
+	move.l	#(CONFIG_SYS_MBAR + 1), %d0		/* set MBAR address + valid flag */
+	move.c	%d0, %MBAR
+
+	/*** The 5249 has MBAR2 as well ***/
+#ifdef CONFIG_SYS_MBAR2
+	move.l	#(CONFIG_SYS_MBAR2 + 1), %d0	        /* Get MBAR2 address */
+	movec	%d0, #0xc0e		        /* Set MBAR2 */
+#endif
+
+	move.l	#(CONFIG_SYS_INIT_RAM_ADDR + 1), %d0
+	movec	%d0, %RAMBAR0
+#endif /* CONFIG_M5272 || CONFIG_M5249 || CONFIG_M5253 */
+
+#if defined(CONFIG_M5282) || defined(CONFIG_M5271)
+	/* Initialize IPSBAR */
+	move.l	#(CONFIG_SYS_MBAR + 1), %d0		/* set IPSBAR address + valid flag */
+	move.l	%d0, 0x40000000
+
+	/* Initialize RAMBAR1: locate SRAM and validate it */
+	move.l	#(CONFIG_SYS_INIT_RAM_ADDR + 0x21), %d0
+	movec	%d0, %RAMBAR1
+
+#if defined(CONFIG_M5282)
+#if (CONFIG_SYS_TEXT_BASE == CONFIG_SYS_INT_FLASH_BASE)
+	/* Setup code in SRAM to initialize FLASHBAR, if start from internal Flash */
+
+	move.l #(_flashbar_setup-CONFIG_SYS_INT_FLASH_BASE), %a0
+	move.l #(_flashbar_setup_end-CONFIG_SYS_INT_FLASH_BASE), %a1
+	move.l #(CONFIG_SYS_INIT_RAM_ADDR), %a2
+_copy_flash:
+	move.l (%a0)+, (%a2)+
+	cmp.l %a0, %a1
+	bgt.s _copy_flash
+	jmp CONFIG_SYS_INIT_RAM_ADDR
+
+_flashbar_setup:
+	/* Initialize FLASHBAR: locate internal Flash and validate it */
+	move.l	#(CONFIG_SYS_INT_FLASH_BASE + CONFIG_SYS_INT_FLASH_ENABLE), %d0
+	movec	%d0, %FLASHBAR
+	jmp _after_flashbar_copy.L	/* Force jump to absolute address */
+_flashbar_setup_end:
+	nop
+_after_flashbar_copy:
+#else
+	/* Setup code to initialize FLASHBAR, if start from external Memory */
+	move.l	#(CONFIG_SYS_INT_FLASH_BASE + CONFIG_SYS_INT_FLASH_ENABLE), %d0
+	movec	%d0, %FLASHBAR
+#endif /* (CONFIG_SYS_TEXT_BASE == CONFIG_SYS_INT_FLASH_BASE) */
+
+#endif
+#endif
+	/* if we come from a pre-loader we have no exception table and
+	 * therefore no VBR to set
+	 */
+#if !defined(CONFIG_MONITOR_IS_IN_RAM)
+#if defined(CONFIG_M5282) && (CONFIG_SYS_TEXT_BASE == CONFIG_SYS_INT_FLASH_BASE)
+	move.l	#CONFIG_SYS_INT_FLASH_BASE, %d0
+#else
+	move.l	#CONFIG_SYS_FLASH_BASE, %d0
+#endif
+	movec	%d0, %VBR
+#endif
+
+#ifdef CONFIG_M5275
+	/* Initialize IPSBAR */
+	move.l	#(CONFIG_SYS_MBAR + 1), %d0		/* set IPSBAR address + valid flag */
+	move.l	%d0, 0x40000000
+/*	movec	%d0, %MBAR */
+
+	/* Initialize RAMBAR: locate SRAM and validate it */
+	move.l	#(CONFIG_SYS_INIT_RAM_ADDR + 0x21), %d0
+	movec	%d0, %RAMBAR1
+#endif
+
+	/* initialize general use internal ram */
+	move.l #0, %d0
+	move.l #(ICACHE_STATUS), %a1	/* icache */
+	move.l #(DCACHE_STATUS), %a2	/* icache */
+	move.l %d0, (%a1)
+	move.l %d0, (%a2)
+
+	/* put relocation table address to a5 */
+	move.l #__got_start, %a5
+
+	/* setup stack initially on top of internal static ram  */
+	move.l  #(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_RAM_SIZE), %sp
+
+	/*
+	 * if configured, malloc_f arena will be reserved first,
+	 * then (and always) gd struct space will be reserved
+	 */
+	move.l	%sp, -(%sp)
+	move.l	#board_init_f_alloc_reserve, %a1
+	jsr (%a1)
+
+	/* update stack and frame-pointers */
+	move.l  %d0, %sp
+	move.l  %sp, %fp
+
+	/* initialize reserved area */
+	move.l  %d0, -(%sp)
+	move.l	#board_init_f_init_reserve, %a1
+	jsr (%a1)
+
+	/* run low-level CPU init code (from flash) */
+	move.l #cpu_init_f, %a1
+	jsr (%a1)
+	/* run low-level board init code (from flash) */
+	clr.l   %sp@-
+	move.l #board_init_f, %a1
+	jsr (%a1)
+
+	/* board_init_f() does not return */
+
+/*------------------------------------------------------------------------------*/
+
+/*
+ * void relocate_code (addr_sp, gd, addr_moni)
+ *
+ * This "function" does not return, instead it continues in RAM
+ * after relocating the monitor code.
+ *
+ * r3 = dest
+ * r4 = src
+ * r5 = length in bytes
+ * r6 = cachelinesize
+ */
+	.globl	relocate_code
+relocate_code:
+	link.w %a6,#0
+	move.l 8(%a6), %sp		/* set new stack pointer */
+
+	move.l 12(%a6), %d0		/* Save copy of Global Data pointer */
+	move.l 16(%a6), %a0		/* Save copy of Destination Address */
+
+	move.l #CONFIG_SYS_MONITOR_BASE, %a1
+	move.l #__init_end, %a2
+	move.l %a0, %a3
+	/* copy the code to RAM */
+1:
+	move.l (%a1)+, (%a3)+
+	cmp.l  %a1,%a2
+	bgt.s	 1b
+
+/*
+ * We are done. Do not return, instead branch to second part of board
+ * initialization, now running from RAM.
+ */
+	move.l	%a0, %a1
+	add.l	#(in_ram - CONFIG_SYS_MONITOR_BASE), %a1
+	jmp	(%a1)
+
+in_ram:
+
+clear_bss:
+	/*
+	 * Now clear BSS segment
+	 */
+	move.l	%a0, %a1
+	add.l	#(_sbss - CONFIG_SYS_MONITOR_BASE),%a1
+	move.l	%a0, %d1
+	add.l	#(_ebss - CONFIG_SYS_MONITOR_BASE),%d1
+6:
+	clr.l	(%a1)+
+	cmp.l	%a1,%d1
+	bgt.s	6b
+
+	/*
+	 * fix got table in RAM
+	 */
+	move.l	%a0, %a1
+	add.l	#(__got_start - CONFIG_SYS_MONITOR_BASE),%a1
+	move.l	%a1,%a5		/* * fix got pointer register a5 */
+
+	move.l	%a0, %a2
+	add.l	#(__got_end - CONFIG_SYS_MONITOR_BASE),%a2
+
+7:
+	move.l	(%a1),%d1
+	sub.l	#_start,%d1
+	add.l	%a0,%d1
+	move.l	%d1,(%a1)+
+	cmp.l	%a2, %a1
+	bne	7b
+
+	/* calculate relative jump to board_init_r in ram */
+	move.l %a0, %a1
+	add.l #(board_init_r - CONFIG_SYS_MONITOR_BASE), %a1
+
+	/* set parameters for board_init_r */
+	move.l %a0,-(%sp)		/* dest_addr */
+	move.l %d0,-(%sp)		/* gd */
+#if defined(DEBUG) && (CONFIG_SYS_TEXT_BASE != CONFIG_SYS_INT_FLASH_BASE) && \
+    defined(CONFIG_SYS_HALT_BEFOR_RAM_JUMP)
+	halt
+#endif
+	jsr	(%a1)
+
+/*------------------------------------------------------------------------------*/
+/* exception code */
+	.globl _fault
+_fault:
+	bra _fault
+
+	.globl	_exc_handler
+_exc_handler:
+	SAVE_ALL
+	movel	%sp,%sp@-
+	bsr exc_handler
+	addql	#4,%sp
+	RESTORE_ALL
+
+	.globl	_int_handler
+_int_handler:
+	SAVE_ALL
+	movel	%sp,%sp@-
+	bsr int_handler
+	addql	#4,%sp
+	RESTORE_ALL
+
+/*------------------------------------------------------------------------------*/
+
+	.globl	version_string
+version_string:
+	.ascii U_BOOT_VERSION_STRING, "\0"
+	.align 4