ColdFire: Add M5253EVBE platform for MCF52x2

Signed-off-by: TsiChungLiew <Tsi-Chung.Liew@freescale.com>

5 files changed, 146 insertions, 32 deletions

diff --git a/cpu/mcf52x2/cpu.c b/cpu/mcf52x2/cpu.c
index 96fe371..71ea408 100644
--- a/cpu/mcf52x2/cpu.c
+++ b/cpu/mcf52x2/cpu.c
@@ -205,7 +205,7 @@ int do_reset(cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char *argv[])
 };
 #endif
 
-#ifdef CONFIG_M5249		/* test-only: todo... */
+#ifdef CONFIG_M5249
 int checkcpu(void)
 {
 	char buf[32];
@@ -225,3 +225,33 @@ int do_reset(cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char *argv[])
 	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, CFG_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, bd_t * bd, int flag, int argc, char *argv[])
+{
+	/* enable watchdog, set timeout to 0 and wait */
+	mbar_writeByte(SIM_SYPCR, 0xc0);
+	while (1) ;
+
+	/* we don't return! */
+	return 0;
+};
+#endif
diff --git a/cpu/mcf52x2/cpu_init.c b/cpu/mcf52x2/cpu_init.c
index 5736d0f..f41d77b 100644
--- a/cpu/mcf52x2/cpu_init.c
+++ b/cpu/mcf52x2/cpu_init.c
@@ -6,6 +6,10 @@
  * (C) Copyright 2005
  * BuS Elektronik GmbH & Co. KG <esw@bus-elektronik.de>
  *
+ * Copyright (C) 2004-2007 Freescale Semiconductor, Inc.
+ * TsiChung Liew (Tsi-Chung.Liew@freescale.com)
+ * Hayden Fraser (Hayden.Fraser@freescale.com)
+ *
  * See file CREDITS for list of people who contributed to this
  * project.
  *
@@ -29,6 +33,74 @@
 #include <watchdog.h>
 #include <asm/immap.h>
 
+#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 */
+
+	/*
+	 *  Setup chip selects...
+	 */
+
+	mbar_writeShort(MCFSIM_CSAR1, CFG_CSAR1);
+	mbar_writeShort(MCFSIM_CSCR1, CFG_CSCR1);
+	mbar_writeLong(MCFSIM_CSMR1, CFG_CSMR1);
+
+	mbar_writeShort(MCFSIM_CSAR0, CFG_CSAR0);
+	mbar_writeShort(MCFSIM_CSCR0, CFG_CSCR0);
+	mbar_writeLong(MCFSIM_CSMR0, CFG_CSMR0);
+
+	/* 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(void)
+{
+	/* Setup Ports: */
+	switch (CFG_UART_PORT) {
+	case 0:
+		break;
+	case 1:
+		break;
+	case 2:
+		break;
+	}
+}
+#endif				/* #if defined(CONFIG_M5253) */
+
 #if defined(CONFIG_M5271)
 void cpu_init_f(void)
 {
@@ -394,26 +466,6 @@ void uart_port_conf(void)
  */
 void cpu_init_f(void)
 {
-#ifndef CFG_PLL_BYPASS
-	/*
-	 *  Setup the PLL to run at the specified speed
-	 *
-	 */
-	volatile unsigned long cpll = mbar2_readLong(MCFSIM_PLLCR);
-	unsigned long pllcr;
-#ifdef CFG_FAST_CLK
-	pllcr = 0x925a3100;	/* ~140MHz clock (PLL bypass = 0) */
-#else
-	pllcr = 0x135a4140;	/* ~72MHz clock (PLL bypass = 0) */
-#endif
-	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 CFG_PLL_BYPASS */
-
 	/*
 	 *  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
diff --git a/cpu/mcf52x2/interrupts.c b/cpu/mcf52x2/interrupts.c
index d9a35bb..2ccbde5 100644
--- a/cpu/mcf52x2/interrupts.c
+++ b/cpu/mcf52x2/interrupts.c
@@ -1,9 +1,10 @@
 /*
- * (C) Copyright 2003 Josef Baumgartner <josef.baumgartner@telex.de>
- *
  * (C) Copyright 2000-2004
  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
  *
+ * Copyright (C) 2004-2007 Freescale Semiconductor, Inc.
+ * TsiChung Liew (Tsi-Chung.Liew@freescale.com)
+ *
  * See file CREDITS for list of people who contributed to this
  * project.
  *
@@ -82,7 +83,7 @@ void dtimer_intr_setup(void)
 #endif				/* CONFIG_MCFTMR */
 #endif				/* CONFIG_M5282 | CONFIG_M5271 */
 
-#ifdef	CONFIG_M5249
+#if defined(CONFIG_M5249) || defined(CONFIG_M5253)
 int interrupt_init(void)
 {
 	enable_interrupts();
@@ -94,9 +95,7 @@ int interrupt_init(void)
 void dtimer_intr_setup(void)
 {
 	mbar_writeLong(MCFSIM_IMR, mbar_readLong(MCFSIM_IMR) & ~0x00000400);
-	mbar_writeByte(MCFSIM_TIMER2ICR,
-		       MCFSIM_ICR_AUTOVEC | MCFSIM_ICR_LEVEL7 |
-		       MCFSIM_ICR_PRI3);
+	mbar_writeByte(MCFSIM_TIMER2ICR, CFG_TMRINTR_PRI);
 }
 #endif				/* CONFIG_MCFTMR */
-#endif				/* CONFIG_M5249 */
+#endif				/* CONFIG_M5249 || CONFIG_M5253 */
diff --git a/cpu/mcf52x2/speed.c b/cpu/mcf52x2/speed.c
index ac860b2..bc1e200 100644
--- a/cpu/mcf52x2/speed.c
+++ b/cpu/mcf52x2/speed.c
@@ -2,6 +2,9 @@
  * (C) Copyright 2003
  * Josef Baumgartner <josef.baumgartner@telex.de>
  *
+ * Copyright (C) 2004-2007 Freescale Semiconductor, Inc.
+ * Hayden Fraser (Hayden.Fraser@freescale.com)
+ *
  * See file CREDITS for list of people who contributed to this
  * project.
  *
@@ -23,6 +26,7 @@
 
 #include <common.h>
 #include <asm/processor.h>
+#include <asm/immap.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -31,8 +35,37 @@ DECLARE_GLOBAL_DATA_PTR;
  */
 int get_clocks (void)
 {
-	gd->cpu_clk = CFG_CLK;
+#if defined(CONFIG_M5249) || defined(CONFIG_M5253)
+	volatile unsigned long cpll = mbar2_readLong(MCFSIM_PLLCR);
+	unsigned long pllcr;
+
+#ifndef CFG_PLL_BYPASS
+
 #ifdef CONFIG_M5249
+	/* Setup the PLL to run at the specified speed */
+#ifdef CFG_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 = CFG_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 CFG_PLL_BYPASS */
+
+#endif				/* CONFIG_M5249 || CONFIG_M5253 */
+
+	gd->cpu_clk = CFG_CLK;
+#if defined(CONFIG_M5249) || defined(CONFIG_M5253)
 	gd->bus_clk = gd->cpu_clk / 2;
 #else
 	gd->bus_clk = gd->cpu_clk;
diff --git a/cpu/mcf52x2/start.S b/cpu/mcf52x2/start.S
index 6783d4d..686e2a5 100644
--- a/cpu/mcf52x2/start.S
+++ b/cpu/mcf52x2/start.S
@@ -121,7 +121,7 @@ _start:
 	nop
 	move.w #0x2700,%sr
 
-#if defined(CONFIG_M5272) || defined(CONFIG_M5249)
+#if defined(CONFIG_M5272) || defined(CONFIG_M5249) || defined(CONFIG_M5253)
 	move.l	#(CFG_MBAR + 1), %d0		/* set MBAR address + valid flag */
 	move.c	%d0, %MBAR
 
@@ -133,7 +133,7 @@ _start:
 
 	move.l	#(CFG_INIT_RAM_ADDR + 1), %d0
 	movec	%d0, %RAMBAR0
-#endif /* #if defined(CONFIG_M5272) || defined(CONFIG_M5249) */
+#endif /* CONFIG_M5272 || CONFIG_M5249 || CONFIG_M5253 */
 
 #if defined(CONFIG_M5282) || defined(CONFIG_M5271)
 	/* Initialize IPSBAR */
@@ -407,7 +407,7 @@ icache_state_access_1:
 	rts
 #endif
 
-#ifdef CONFIG_M5249
+#if defined(CONFIG_M5249) || defined(CONFIG_M5253)
 	.globl	icache_enable
 icache_enable:
 	/*