Merge branch 'master' of git://git.denx.de/u-boot-microblaze

arch/microblaze/cpu/cache.c

@@ -50,6 +50,8 @@ void	icache_enable (void) {
 }
 
 void	icache_disable(void) {
+	/* we are not generate ICACHE size -> flush whole cache */
+	flush_cache(0, 32768);
 	MSRCLR(0x20);
 }
 
@@ -58,5 +60,31 @@ void	dcache_enable (void) {
 }
 
 void	dcache_disable(void) {
+#ifdef XILINX_USE_DCACHE
+#ifdef XILINX_DCACHE_BYTE_SIZE
+	flush_cache(0, XILINX_DCACHE_BYTE_SIZE);
+#else
+#warning please rebuild BSPs and update configuration
+	flush_cache(0, 32768);
+#endif
+#endif
 	MSRCLR(0x80);
 }
+
+void flush_cache (ulong addr, ulong size)
+{
+	int i;
+	for (i = 0; i < size; i += 4)
+		asm volatile (
+#ifdef CONFIG_ICACHE
+				"wic	%0, r0;"
+#endif
+				"nop;"
+#ifdef CONFIG_DCACHE
+				"wdc.flush	%0, r0;"
+#endif
+				"nop;"
+				:
+				: "r" (addr + i)
+				: "memory");
+}

arch/microblaze/cpu/interrupts.c

@@ -46,13 +46,6 @@ int disable_interrupts (void)
 }
 
 #ifdef CONFIG_SYS_INTC_0
-#ifdef CONFIG_SYS_TIMER_0
-extern void timer_init (void);
-#endif
-#ifdef CONFIG_SYS_FSL_2
-extern void fsl_init2 (void);
-#endif
-
 
 static struct irq_action vecs[CONFIG_SYS_INTC_0_NUM];
 
@@ -142,20 +135,14 @@ int interrupts_init (void)
 	}
 	/* initialize intc controller */
 	intc_init ();
-#ifdef CONFIG_SYS_TIMER_0
-	timer_init ();
-#endif
-#ifdef CONFIG_SYS_FSL_2
-	fsl_init2 ();
-#endif
 	enable_interrupts ();
 	return 0;
 }
 
 void interrupt_handler (void)
 {
-	int irqs = (intc->isr & intc->ier);	/* find active interrupt */
-	int i = 1;
+	int irqs = intc->ivr;	/* find active interrupt */
+	int mask = 1;
 #ifdef DEBUG_INT
 	int value;
 	printf ("INTC isr %x, ier %x, iar %x, mer %x\n", intc->isr, intc->ier,
@@ -163,23 +150,17 @@ void interrupt_handler (void)
 	R14(value);
 	printf ("Interrupt handler on %x line, r14 %x\n", irqs, value);
 #endif
-	struct irq_action *act = vecs;
-	while (irqs) {
-		if (irqs & 1) {
+	struct irq_action *act = vecs + irqs;
+
+	intc->iar = mask << irqs;
+
 #ifdef DEBUG_INT
-			printf
-			    ("Jumping to interrupt handler rutine addr %x,count %x,arg %x\n",
-			     act->handler, act->count, act->arg);
+	printf
+	    ("Jumping to interrupt handler rutine addr %x,count %x,arg %x\n",
+	     act->handler, act->count, act->arg);
 #endif
-			act->handler (act->arg);
-			act->count++;
-			intc->iar = i;
-			return;
-		}
-		irqs >>= 1;
-		act++;
-		i <<= 1;
-	}
+	act->handler (act->arg);
+	act->count++;
 
 #ifdef DEBUG_INT
 	printf ("Dump INTC reg, isr %x, ier %x, iar %x, mer %x\n", intc->isr,

arch/microblaze/cpu/irq.S

@@ -27,129 +27,71 @@
 	.text
 	.global _interrupt_handler
 _interrupt_handler:
-	addi	r1, r1, -4
-	swi	r2, r1, 0
-	addi	r1, r1, -4
-	swi	r3, r1, 0
-	addi	r1, r1, -4
-	swi	r4, r1, 0
-	addi	r1, r1, -4
-	swi	r5, r1, 0
-	addi	r1, r1, -4
-	swi	r6, r1, 0
-	addi	r1, r1, -4
-	swi	r7, r1, 0
-	addi	r1, r1, -4
-	swi	r8, r1, 0
-	addi	r1, r1, -4
-	swi	r9, r1, 0
-	addi	r1, r1, -4
-	swi	r10, r1, 0
-	addi	r1, r1, -4
-	swi	r11, r1, 0
-	addi	r1, r1, -4
-	swi	r12, r1, 0
-	addi	r1, r1, -4
-	swi	r13, r1, 0
-	addi	r1, r1, -4
-	swi	r14, r1, 0
-	addi	r1, r1, -4
-	swi	r15, r1, 0
-	addi	r1, r1, -4
-	swi	r16, r1, 0
-	addi	r1, r1, -4
-	swi	r17, r1, 0
-	addi	r1, r1, -4
-	swi	r18, r1, 0
-	addi	r1, r1, -4
-	swi	r19, r1, 0
-	addi	r1, r1, -4
-	swi	r20, r1, 0
-	addi	r1, r1, -4
-	swi	r21, r1, 0
-	addi	r1, r1, -4
-	swi	r22, r1, 0
-	addi	r1, r1, -4
-	swi	r23, r1, 0
-	addi	r1, r1, -4
-	swi	r24, r1, 0
-	addi	r1, r1, -4
-	swi	r25, r1, 0
-	addi	r1, r1, -4
-	swi	r26, r1, 0
-	addi	r1, r1, -4
-	swi	r27, r1, 0
-	addi	r1, r1, -4
-	swi	r28, r1, 0
-	addi	r1, r1, -4
-	swi	r29, r1, 0
-	addi	r1, r1, -4
-	swi	r30, r1, 0
-	addi	r1, r1, -4
-	swi	r31, r1, 0
+	swi	r2, r1, -4
+	swi	r3, r1, -8
+	swi	r4, r1, -12
+	swi	r5, r1, -16
+	swi	r6, r1, -20
+	swi	r7, r1, -24
+	swi	r8, r1, -28
+	swi	r9, r1, -32
+	swi	r10, r1, -36
+	swi	r11, r1, -40
+	swi	r12, r1, -44
+	swi	r13, r1, -48
+	swi	r14, r1, -52
+	swi	r15, r1, -56
+	swi	r16, r1, -60
+	swi	r17, r1, -64
+	swi	r18, r1, -68
+	swi	r19, r1, -72
+	swi	r20, r1, -76
+	swi	r21, r1, -80
+	swi	r22, r1, -84
+	swi	r23, r1, -88
+	swi	r24, r1, -92
+	swi	r25, r1, -96
+	swi	r26, r1, -100
+	swi	r27, r1, -104
+	swi	r28, r1, -108
+	swi	r29, r1, -112
+	swi	r30, r1, -116
+	swi	r31, r1, -120
+	addik	r1, r1, -124
 	brlid	r15, interrupt_handler
 	nop
 	nop
-	lwi	r31, r1, 0
-	addi	r1, r1, 4
-	lwi	r30, r1, 0
-	addi	r1, r1, 4
-	lwi	r29, r1, 0
-	addi	r1, r1, 4
-	lwi	r28, r1, 0
-	addi	r1, r1, 4
-	lwi	r27, r1, 0
-	addi	r1, r1, 4
-	lwi	r26, r1, 0
-	addi	r1, r1, 4
-	lwi	r25, r1, 0
-	addi	r1, r1, 4
-	lwi	r24, r1, 0
-	addi	r1, r1, 4
-	lwi	r23, r1, 0
-	addi	r1, r1, 4
-	lwi	r22, r1, 0
-	addi	r1, r1, 4
-	lwi	r21, r1, 0
-	addi	r1, r1, 4
-	lwi	r20, r1, 0
-	addi	r1, r1, 4
-	lwi	r19, r1, 0
-	addi	r1, r1, 4
-	lwi	r18, r1, 0
-	addi	r1, r1, 4
-	lwi	r17, r1, 0
-	addi	r1, r1, 4
-	lwi	r16, r1, 0
-	addi	r1, r1, 4
-	lwi	r15, r1, 0
-	addi	r1, r1, 4
-	lwi	r14, r1, 0
-	addi	r1, r1, 4
-	lwi	r13, r1, 0
-	addi	r1, r1, 4
-	lwi	r12, r1, 0
-	addi	r1, r1, 4
-	lwi	r11, r1, 0
-	addi	r1, r1, 4
-	lwi	r10, r1, 0
-	addi	r1, r1, 4
-	lwi	r9, r1, 0
-	addi	r1, r1, 4
-	lwi	r8, r1, 0
-	addi	r1, r1, 4
-	lwi	r7, r1, 0
-	addi	r1, r1, 4
-	lwi	r6, r1, 0
-	addi	r1, r1, 4
-	lwi	r5, r1, 0
-	addi	r1, r1, 4
-	lwi	r4, r1, 0
-	addi	r1, r1, 4
-	lwi	r3, r1, 0
-	addi	r1, r1, 4
-	lwi	r2, r1, 0
-	addi	r1, r1, 4
+	addik	r1, r1, 124
+	lwi	r31, r1, -120
+	lwi	r30, r1, -116
+	lwi	r29, r1, -112
+	lwi	r28, r1, -108
+	lwi	r27, r1, -104
+	lwi	r26, r1, -100
+	lwi	r25, r1, -96
+	lwi	r24, r1, -92
+	lwi	r23, r1, -88
+	lwi	r22, r1, -84
+	lwi	r21, r1, -80
+	lwi	r20, r1, -76
+	lwi	r19, r1, -72
+	lwi	r18, r1, -68
+	lwi	r17, r1, -64
+	lwi	r16, r1, -60
+	lwi	r15, r1, -56
+	lwi	r14, r1, -52
+	lwi	r13, r1, -48
+	lwi	r12, r1, -44
+	lwi	r11, r1, -40
+	lwi	r10, r1, -36
+	lwi	r9, r1, -32
+	lwi	r8, r1, -28
+	lwi	r7, r1, -24
+	lwi	r6, r1, -20
+	lwi	r5, r1, -16
+	lwi	r4, r1, -12
+	lwi	r3, r1, -8
+	lwi	r2, r1, -4
 
 	/* enable_interrupt */
 #ifdef XILINX_USE_MSR_INSTR

arch/microblaze/cpu/timer.c

@@ -60,7 +60,7 @@ void timer_isr (void *arg)
 	tmr->control = tmr->control | TIMER_INTERRUPT;
 }
 
-void timer_init (void)
+int timer_init (void)
 {
 	tmr->loadreg = CONFIG_SYS_TIMER_0_PRELOAD;
 	tmr->control = TIMER_INTERRUPT | TIMER_RESET;
@@ -68,6 +68,7 @@ void timer_init (void)
 	    TIMER_ENABLE | TIMER_ENABLE_INTR | TIMER_RELOAD | TIMER_DOWN_COUNT;
 	reset_timer ();
 	install_interrupt_handler (CONFIG_SYS_TIMER_0_IRQ, timer_isr, (void *)tmr);
+	return 0;
 }
 #endif
 #endif

arch/microblaze/lib/Makefile

@@ -29,7 +29,6 @@ SOBJS-y	+=
 
 COBJS-y	+= board.o
 COBJS-y	+= bootm.o
-COBJS-y	+= cache.o
 COBJS-y	+= time.o
 
 SRCS	:= $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c)

arch/microblaze/lib/board.c

@@ -30,6 +30,7 @@
 #include <timestamp.h>
 #include <version.h>
 #include <watchdog.h>
+#include <stdio_dev.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -44,6 +45,12 @@ extern int interrupts_init (void);
 #if defined(CONFIG_CMD_NET)
 extern int eth_init (bd_t * bis);
 #endif
+#ifdef CONFIG_SYS_TIMER_0
+extern int timer_init (void);
+#endif
+#ifdef CONFIG_SYS_FSL_2
+extern void fsl_init2 (void);
+#endif
 
 /*
  * All attempts to come up with a "common" initialization sequence
@@ -67,6 +74,12 @@ init_fnc_t *init_sequence[] = {
 #endif
 #ifdef CONFIG_SYS_INTC_0
 	interrupts_init,
+#endif
+#ifdef CONFIG_SYS_TIMER_0
+	timer_init,
+#endif
+#ifdef CONFIG_SYS_FSL_2
+	fsl_init2,
 #endif
 	NULL,
 };
@@ -76,6 +89,7 @@ void board_init (void)
 	bd_t *bd;
 	init_fnc_t **init_fnc_ptr;
 	gd = (gd_t *) CONFIG_SYS_GBL_DATA_OFFSET;
+	char *s;
 #if defined(CONFIG_CMD_FLASH)
 	ulong flash_size = 0;
 #endif
@@ -104,8 +118,8 @@ void board_init (void)
 	}
 
 	puts ("SDRAM :\n");
-	printf ("\t\tIcache:%s\n", icache_status() ? "OK" : "FAIL");
-	printf ("\t\tDcache:%s\n", dcache_status() ? "OK" : "FAIL");
+	printf ("\t\tIcache:%s\n", icache_status() ? "ON" : "OFF");
+	printf ("\t\tDcache:%s\n", dcache_status() ? "ON" : "OFF");
 	printf ("\tU-Boot Start:0x%08x\n", TEXT_BASE);
 
 #if defined(CONFIG_CMD_FLASH)
@@ -139,15 +153,22 @@ void board_init (void)
 	}
 #endif
 
+	/* relocate environment function pointers etc. */
+	env_relocate ();
+
+	/* Initialize stdio devices */
+	stdio_init ();
+
+	if ((s = getenv ("loadaddr")) != NULL) {
+		load_addr = simple_strtoul (s, NULL, 16);
+	}
+
 #if defined(CONFIG_CMD_NET)
 	/* IP Address */
 	bd->bi_ip_addr = getenv_IPaddr ("ipaddr");
 	eth_init (bd);
 #endif
 
-	/* relocate environment function pointers etc. */
-	env_relocate ();
-
 	/* main_loop */
 	for (;;) {
 		WATCHDOG_RESET ();

arch/microblaze/lib/bootm.c

@@ -35,22 +35,59 @@ DECLARE_GLOBAL_DATA_PTR;
 int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t *images)
 {
 	/* First parameter is mapped to $r5 for kernel boot args */
-	void	(*theKernel) (char *);
+	void	(*theKernel) (char *, ulong, ulong);
 	char	*commandline = getenv ("bootargs");
+	ulong	rd_data_start, rd_data_end;
 
 	if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
 		return 1;
 
-	theKernel = (void (*)(char *))images->ep;
+	int	ret;
+
+	char	*of_flat_tree = NULL;
+#if defined(CONFIG_OF_LIBFDT)
+	ulong	of_size = 0;
+
+	/* find flattened device tree */
+	ret = boot_get_fdt (flag, argc, argv, images, &of_flat_tree, &of_size);
+	if (ret)
+		return 1;
+#endif
+
+	theKernel = (void (*)(char *, ulong, ulong))images->ep;
+
+	/* find ramdisk */
+	ret = boot_get_ramdisk (argc, argv, images, IH_ARCH_MICROBLAZE,
+			&rd_data_start, &rd_data_end);
+	if (ret)
+		return 1;
 
 	show_boot_progress (15);
 
+	if (!(ulong) of_flat_tree)
+		of_flat_tree = (char *)simple_strtoul (argv[3], NULL, 16);
+
 #ifdef DEBUG
-	printf ("## Transferring control to Linux (at address %08lx) ...\n",
-		(ulong) theKernel);
+	printf ("## Transferring control to Linux (at address 0x%08lx) " \
+				"ramdisk 0x%08lx, FDT 0x%08lx...\n",
+		(ulong) theKernel, rd_data_start, (ulong) of_flat_tree);
 #endif
 
-	theKernel (commandline);
+#ifdef XILINX_USE_DCACHE
+#ifdef XILINX_DCACHE_BYTE_SIZE
+	flush_cache(0, XILINX_DCACHE_BYTE_SIZE);
+#else
+#warning please rebuild BSPs and update configuration
+	flush_cache(0, 32768);
+#endif
+#endif
+	/*
+	 * Linux Kernel Parameters (passing device tree):
+	 * r5: pointer to command line
+	 * r6: pointer to ramdisk
+	 * r7: pointer to the fdt, followed by the board info data
+	 */
+	theKernel (commandline, rd_data_start, (ulong) of_flat_tree);
 	/* does not return */
 
 	return 1;

arch/microblaze/lib/cache.c

@@ -1,43 +0,0 @@
-/*
- * (C) Copyright 2004 Atmark Techno, Inc.
- *
- * Yasushi SHOJI <yashi@atmark-techno.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
- */
-
-#include <common.h>
-
-void flush_cache (ulong addr, ulong size)
-{
-	int i;
-	for (i = 0; i < size; i += 4)
-		asm volatile (
-#ifdef CONFIG_ICACHE
-				"wic	%0, r0;"
-#endif
-				"nop;"
-#ifdef CONFIG_DCACHE
-				"wdc	%0, r0;"
-#endif
-				"nop;"
-				:
-				: "r" (addr + i)
-				: "memory");
-}

board/xilinx/microblaze-generic/microblaze-generic.c

@@ -60,10 +60,9 @@ void fsl_isr2 (void *arg) {
 	puts("*");
 }
 
-void fsl_init2 (void) {
+int fsl_init2 (void) {
 	puts("fsl_init2\n");
-	install_interrupt_handler (FSL_INTR_2,\
- fsl_isr2,\
- NULL);
+	install_interrupt_handler (FSL_INTR_2, fsl_isr2, NULL);
+	return 0;
 }
 #endif