+// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2007 Michal Simek
* (C) Copyright 2004 Atmark Techno, Inc.
*
* Michal SIMEK <monstr@monstr.eu>
* 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>
#include <command.h>
+#include <fdtdec.h>
+#include <irq_func.h>
#include <malloc.h>
#include <asm/microblaze_intc.h>
#include <asm/asm.h>
-#undef DEBUG_INT
+DECLARE_GLOBAL_DATA_PTR;
void enable_interrupts(void)
{
+ debug("Enable interrupts for the whole CPU\n");
MSRSET(0x2);
}
offset <<= irq;
mask = intc->ier;
intc->ier = (mask | offset);
-#ifdef DEBUG_INT
- printf("Enable one interrupt irq %x - mask %x,ier %x\n", offset, mask,
- intc->ier);
- printf("INTC isr %x, ier %x, iar %x, mer %x\n", intc->isr, intc->ier,
- intc->iar, intc->mer);
-#endif
+
+ debug("Enable one interrupt irq %x - mask %x,ier %x\n", offset, mask,
+ intc->ier);
+ debug("INTC isr %x, ier %x, iar %x, mer %x\n", intc->isr, intc->ier,
+ intc->iar, intc->mer);
}
static void disable_one_interrupt(int irq)
offset <<= irq;
mask = intc->ier;
intc->ier = (mask & ~offset);
-#ifdef DEBUG_INT
- printf("Disable one interrupt irq %x - mask %x,ier %x\n", irq, mask,
- intc->ier);
- printf("INTC isr %x, ier %x, iar %x, mer %x\n", intc->isr, intc->ier,
- intc->iar, intc->mer);
-#endif
+
+ debug("Disable one interrupt irq %x - mask %x,ier %x\n", irq, mask,
+ intc->ier);
+ debug("INTC isr %x, ier %x, iar %x, mer %x\n", intc->isr, intc->ier,
+ intc->iar, intc->mer);
}
int install_interrupt_handler(int irq, interrupt_handler_t *hdlr, void *arg)
act->handler = hdlr;
act->arg = arg;
act->count = 0;
- enable_one_interrupt (irq);
+ enable_one_interrupt(irq);
return 0;
}
/* Disable */
- act->handler = (interrupt_handler_t *) def_hdlr;
+ act->handler = (interrupt_handler_t *)def_hdlr;
act->arg = (void *)irq;
disable_one_interrupt(irq);
return 1;
intc->iar = 0xFFFFFFFF;
/* XIntc_Start - hw_interrupt enable and all interrupt enable */
intc->mer = 0x3;
-#ifdef DEBUG_INT
- printf("INTC isr %x, ier %x, iar %x, mer %x\n", intc->isr, intc->ier,
- intc->iar, intc->mer);
-#endif
+
+ debug("INTC isr %x, ier %x, iar %x, mer %x\n", intc->isr, intc->ier,
+ intc->iar, intc->mer);
}
-int interrupts_init(void)
+int interrupt_init(void)
{
int i;
+ const void *blob = gd->fdt_blob;
+ int node = 0;
+
+ debug("INTC: Initialization\n");
+
+ node = fdt_node_offset_by_compatible(blob, node,
+ "xlnx,xps-intc-1.00.a");
+ if (node != -1) {
+ fdt_addr_t base = fdtdec_get_addr(blob, node, "reg");
+ if (base == FDT_ADDR_T_NONE)
+ return -1;
+
+ debug("INTC: Base addr %lx\n", base);
+ intc = (microblaze_intc_t *)base;
+ irq_no = fdtdec_get_int(blob, node, "xlnx,num-intr-inputs", 0);
+ debug("INTC: IRQ NO %x\n", irq_no);
+ } else {
+ return node;
+ }
-#if defined(CONFIG_SYS_INTC_0_ADDR) && defined(CONFIG_SYS_INTC_0_NUM)
- intc = (microblaze_intc_t *) (CONFIG_SYS_INTC_0_ADDR);
- irq_no = CONFIG_SYS_INTC_0_NUM;
-#endif
if (irq_no) {
vecs = calloc(1, sizeof(struct irq_action) * irq_no);
if (vecs == NULL) {
/* initialize irq list */
for (i = 0; i < irq_no; i++) {
- vecs[i].handler = (interrupt_handler_t *) def_hdlr;
+ vecs[i].handler = (interrupt_handler_t *)def_hdlr;
vecs[i].arg = (void *)i;
vecs[i].count = 0;
}
{
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,
- intc->iar, intc->mer);
- R14(value);
- printf ("Interrupt handler on %x line, r14 %x\n", irqs, value);
-#endif
struct irq_action *act = vecs + irqs;
-#ifdef DEBUG_INT
- printf
- ("Jumping to interrupt handler rutine addr %x,count %x,arg %x\n",
- act->handler, act->count, act->arg);
+ debug("INTC isr %x, ier %x, iar %x, mer %x\n", intc->isr, intc->ier,
+ intc->iar, intc->mer);
+#ifdef DEBUG
+ R14(value);
#endif
- act->handler (act->arg);
+ debug("Interrupt handler on %x line, r14 %x\n", irqs, value);
+
+ debug("Jumping to interrupt handler rutine addr %x,count %x,arg %x\n",
+ (u32)act->handler, act->count, (u32)act->arg);
+ act->handler(act->arg);
act->count++;
intc->iar = mask << irqs;
-#ifdef DEBUG_INT
- printf ("Dump INTC reg, isr %x, ier %x, iar %x, mer %x\n", intc->isr,
- intc->ier, intc->iar, intc->mer);
+ debug("Dump INTC reg, isr %x, ier %x, iar %x, mer %x\n", intc->isr,
+ intc->ier, intc->iar, intc->mer);
+#ifdef DEBUG
R14(value);
- printf ("Interrupt handler on %x line, r14 %x\n", irqs, value);
#endif
+ debug("Interrupt handler on %x line, r14 %x\n", irqs, value);
}
#if defined(CONFIG_CMD_IRQ)
-int do_irqinfo(cmd_tbl_t *cmdtp, int flag, int argc, const char *argv[])
+int do_irqinfo(struct cmd_tbl *cmdtp, int flag, int argc, const char *argv[])
{
int i;
struct irq_action *act = vecs;
"-----------------------------\n");
for (i = 0; i < irq_no; i++) {
- if (act->handler != (interrupt_handler_t *) def_hdlr) {
+ if (act->handler != (interrupt_handler_t *)def_hdlr) {
printf("%02d %08x %08x %d\n", i,
- (int)act->handler, (int)act->arg,
- act->count);
+ (int)act->handler, (int)act->arg,
+ act->count);
}
act++;
}
projects / oweals / u-boot.git / blobdiff