Add support for Freescale M5271 processor

CHANGELOG

@@ -2,6 +2,9 @@
 Changes since U-Boot 1.1.4:
 ======================================================================
 
+* Add support for Freescale M5271 processor
+  Patch by Zachary Landau, 26 Jan 2006
+
 * Fix 28F256J3A support on PM520 board
   (without bank-switching only 32 MB can be accessed)
 

cpu/mcf52x2/cpu.c

@@ -25,6 +25,11 @@
 #include <watchdog.h>
 #include <command.h>
 
+#ifdef  CONFIG_M5271
+#include <asm/immap_5271.h>
+#include <asm/m5271.h>
+#endif
+
 #ifdef	CONFIG_M5272
 #include <asm/immap_5272.h>
 #include <asm/m5272.h>
@@ -38,6 +43,41 @@
 #include <asm/m5249.h>
 #endif
 
+#ifdef	CONFIG_M5271
+int checkcpu (void)
+{
+	puts ("CPU:   MOTOROLA Coldfire MCF5271\n");
+	return 0;
+}
+
+int do_reset (cmd_tbl_t *cmdtp, bd_t *bd, int flag, int argc, char *argv[]) {
+	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_WCNTR, CONFIG_WATCHDOG_TIMEOUT);
+	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, bd_t *bd, int flag, int argc, char *argv[]) {

cpu/mcf52x2/cpu_init.c

@@ -24,6 +24,11 @@
 #include <common.h>
 #include <watchdog.h>
 
+#ifdef	CONFIG_M5271
+#include <asm/m5271.h>
+#include <asm/immap_5271.h>
+#endif
+
 #ifdef	CONFIG_M5272
 #include <asm/m5272.h>
 #include <asm/immap_5272.h>
@@ -38,6 +43,38 @@
 #include <asm/m5249.h>
 #endif
 
+#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
+
+	/* Set clockspeed to 100MHz */
+	mbar_writeShort(MCF_FMPLL_SYNCR,
+			MCF_FMPLL_SYNCR_MFD(0) | MCF_FMPLL_SYNCR_RFD(0));
+	while (!mbar_readByte(MCF_FMPLL_SYNSR) & MCF_FMPLL_SYNSR_LOCK);
+
+	/* Enable UART pins */
+	mbar_writeShort(MCF_GPIO_PAR_UART, MCF_GPIO_PAR_UART_U0TXD |
+                        MCF_GPIO_PAR_UART_U0RXD |
+                        MCF_GPIO_PAR_UART_U1RXD_UART1 |
+                        MCF_GPIO_PAR_UART_U1TXD_UART1);
+
+	/* Enable Ethernet pins */
+	mbar_writeByte(MCF_GPIO_PAR_FECI2C, CFG_FECI2C);
+}
+
+/*
+ * initialize higher level parts of CPU like timers
+ */
+int cpu_init_r  (void)
+{
+	return (0);
+}
+#endif
+
 #if defined(CONFIG_M5272)
 /*
  * Breath some life into the CPU...

cpu/mcf52x2/fec.c

@@ -25,6 +25,11 @@
 #include <malloc.h>
 #include <asm/fec.h>
 
+#ifdef  CONFIG_M5271
+#include <asm/m5271.h>
+#include <asm/immap_5271.h>
+#endif
+
 #ifdef	CONFIG_M5272
 #include <asm/m5272.h>
 #include <asm/immap_5272.h>
@@ -41,7 +46,7 @@
 #ifdef	CONFIG_M5272
 #define FEC_ADDR		(CFG_MBAR + 0x840)
 #endif
-#ifdef CONFIG_M5282
+#if defined(CONFIG_M5282) || defined(CONFIG_M5271)
 #define FEC_ADDR 		(CFG_MBAR + 0x1000)
 #endif
 
@@ -240,10 +245,22 @@ int eth_init (bd_t * bd)
 #endif
 #undef ea
 
+#ifdef CONFIG_M5271
+	/* Clear multicast address hash table
+	 */
+	fecp->fec_ghash_table_high = 0;
+	fecp->fec_ghash_table_low = 0;
+
+	/* Clear individual address hash table
+	 */
+	fecp->fec_ihash_table_high = 0;
+	fecp->fec_ihash_table_low = 0;
+#else
 	/* Clear multicast address hash table
 	 */
 	fecp->fec_hash_table_high = 0;
 	fecp->fec_hash_table_low = 0;
+#endif
 
 	/* Set maximum receive buffer size.
 	 */
@@ -295,6 +312,9 @@ int eth_init (bd_t * bd)
 	fecp->fec_x_cntrl = FEC_TCNTRL_FDEN;
 #else  /* Half duplex mode */
 	fecp->fec_r_cntrl = FEC_RCNTRL_MII_MODE | FEC_RCNTRL_DRT;
+#ifdef	CONFIG_M5271
+	fecp->fec_r_cntrl |= (PKT_MAXBUF_SIZE << 16); /* set max frame length */
+#endif
 	fecp->fec_x_cntrl = 0;
 #endif
 	/* Set MII speed */

cpu/mcf52x2/interrupts.c

@@ -27,6 +27,11 @@
 #include <watchdog.h>
 #include <asm/processor.h>
 
+#ifdef	CONFIG_M5271
+#include <asm/m5271.h>
+#include <asm/immap_5271.h>
+#endif
+
 #ifdef	CONFIG_M5272
 #include <asm/m5272.h>
 #include <asm/immap_5272.h>
@@ -171,7 +176,7 @@ int interrupt_init (void)
 }
 #endif
 
-#ifdef	CONFIG_M5282
+#if defined(CONFIG_M5282) || defined(CONFIG_M5271)
 int interrupt_init (void)
 {
 	return 0;

cpu/mcf52x2/serial.c

@@ -26,6 +26,10 @@
 
 #include <asm/mcfuart.h>
 
+#ifdef CONFIG_M5271
+#include <asm/m5271.h>
+#endif
+
 #ifdef CONFIG_M5272
 #include <asm/m5272.h>
 #endif
@@ -46,7 +50,7 @@
 
 void rs_serial_setbaudrate(int port,int baudrate)
 {
-#if defined(CONFIG_M5272) || defined(CONFIG_M5249)
+#if defined(CONFIG_M5272) || defined(CONFIG_M5249) || defined(CONFIG_M5271)
 	volatile unsigned char	*uartp;
 	double clock, fraction;
 
@@ -61,8 +65,10 @@ void rs_serial_setbaudrate(int port,int baudrate)
 
 	uartp[MCFUART_UBG1] = (((int)clock >> 8) & 0xff);  /* set msb baud */
 	uartp[MCFUART_UBG2] = ((int)clock & 0xff);  /* set lsb baud */
+#ifndef CONFIG_M5271
 	uartp[MCFUART_UFPD] = ((int)fraction & 0xf);  /* set baud fraction adjust */
 #endif
+#endif
 };
 
 void rs_serial_init(int port,int baudrate)

cpu/mcf52x2/start.S

@@ -55,7 +55,11 @@
  */
 _vectors:
 
+#ifndef	CONFIG_M5271
 .long	0x00000000, _START
+#else
+.long	0x00000000, 0x400	/* Flash offset is 0 until we setup CS0 */
+#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
@@ -124,26 +128,42 @@ _start:
 	movec	%d0, %RAMBAR0
 #endif /* #if defined(CONFIG_M5272) || defined(CONFIG_M5249) */
 
-#ifdef CONFIG_M5282
+#if	defined(CONFIG_M5282) || defined(CONFIG_M5271)
 	/* Initialize IPSBAR */
 	move.l	#(CFG_MBAR + 1), %d0		/* set IPSBAR address + valid flag */
 	move.l	%d0, 0x40000000
 
+#ifdef	CONFIG_M5282
 	/* Initialize FLASHBAR: locate internal Flash and validate it */
 	move.l	#(CFG_INT_FLASH_BASE + 0x21), %d0
 	movec	%d0, %RAMBAR0
+#endif
 
 	/* Initialize RAMBAR1: locate SRAM and validate it */
 	move.l	#(CFG_INIT_RAM_ADDR + 0x21), %d0
 	movec	%d0, %RAMBAR1
+#ifdef	CONFIG_M5271
+	move.l	#(_flash_setup-CFG_FLASH_BASE), %a0
+	move.l	#(_flash_setup_end-CFG_FLASH_BASE), %a1
+	move.l	#(CFG_INIT_RAM_ADDR), %a2
+_copy_flash:
+	move.l	(%a0)+, (%a2)+
+	cmp.l	%a0, %a1
+	bgt.s	_copy_flash
+#endif
+
+	jmp	CFG_INIT_RAM_ADDR
+_after_flash_copy:
 #endif
 
+#if 0
 	/* invalidate and disable cache */
 	move.l	#0x01000000, %d0		/* Invalidate cache cmd */
 	movec	%d0, %CACR			/* Invalidate cache */
 	move.l	#0, %d0
 	movec	%d0, %ACR0
 	movec	%d0, %ACR1
+#endif
 
 	/* set stackpointer to end of internal ram to get some stackspace for the first c-code */
 	move.l	#(CFG_INIT_RAM_ADDR + CFG_INIT_SP_OFFSET), %sp
@@ -158,6 +178,18 @@ _start:
 
 /*------------------------------------------------------------------------------*/
 
+#ifdef	CONFIG_M5271
+_flash_setup:
+	move.l	#0x1000, %d0
+	move.w	%d0, 0x40000080
+	move.l	#0x2180, %d0
+	move.w	%d0, 0x4000008A
+	move.l	#0x3f0001, %d0
+	move.l	%d0, 0x40000084
+	jmp	_after_flash_copy.L
+_flash_setup_end:
+#endif
+
 /*
  * void relocate_code (addr_sp, gd, addr_moni)
  *

include/asm-m68k/mcftimer.h

@@ -45,7 +45,7 @@
 #elif defined(CONFIG_M5249) || defined(CONFIG_M5307) || defined(CONFIG_M5407)
 #define MCFTIMER_BASE1		0x140           /* Base address of TIMER1 */
 #define MCFTIMER_BASE2		0x180           /* Base address of TIMER2 */
-#elif defined(CONFIG_M5282)
+#elif defined(CONFIG_M5282) | defined(CONFIG_M5271)
 #define MCFTIMER_BASE1		0x150000        /* Base address of TIMER1 */
 #define MCFTIMER_BASE2		0x160000        /* Base address of TIMER2 */
 #define MCFTIMER_BASE3		0x170000        /* Base address of TIMER4 */

include/asm-m68k/mcfuart.h

@@ -46,7 +46,7 @@
 #define	MCFUART_BASE1		0x140		/* Base address of UART1 */
 #define	MCFUART_BASE2		0x180		/* Base address of UART2 */
 #endif
-#elif defined(CONFIG_M5282)
+#elif defined(CONFIG_M5282) || defined(CONFIG_M5271)
 #define MCFUART_BASE1		0x200           /* Base address of UART1 */
 #define MCFUART_BASE2		0x240           /* Base address of UART2 */
 #define MCFUART_BASE3		0x280           /* Base address of UART3 */

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) || defined(CONFIG_M5249)
+#if defined(CONFIG_M5272) || defined(CONFIG_M5282) || defined(CONFIG_M5249) || defined(CONFIG_M5271)
 	unsigned format :  4; /* frame format specifier */
 	unsigned vector : 12; /* vector offset */
 	unsigned short sr;

lib_m68k/time.c

@@ -27,6 +27,11 @@
 
 #include <asm/mcftimer.h>
 
+#ifdef	CONFIG_M5271
+#include <asm/m5271.h>
+#include <asm/immap_5271.h>
+#endif
+
 #ifdef	CONFIG_M5272
 #include <asm/m5272.h>
 #include <asm/immap_5272.h>
@@ -43,7 +48,7 @@
 
 
 static ulong timestamp;
-#ifdef	CONFIG_M5282
+#if defined(CONFIG_M5282) || defined(CONFIG_M5271)
 static unsigned short lastinc;
 #endif
 
@@ -127,7 +132,7 @@ void set_timer (ulong t)
 }
 #endif
 
-#if defined(CONFIG_M5282)
+#if defined(CONFIG_M5282) || defined(CONFIG_M5271)
 
 void udelay(unsigned long usec)
 {