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[src/trunk]: src/sys/arch Initial RPI2 support - it doesn't work yet. The gen...
details: https://anonhg.NetBSD.org/src/rev/e294363dea89
branches: trunk
changeset: 336405:e294363dea89
user: skrll <skrll%NetBSD.org@localhost>
date: Sat Feb 28 09:34:34 2015 +0000
description:
Initial RPI2 support - it doesn't work yet. The generic timer gets messed
up somehow.
This commit changes the KVA layout of the RPI.
diffstat:
sys/arch/arm/broadcom/bcm2835_intr.c | 190 ++++++++++++++++++++++-
sys/arch/arm/broadcom/bcm2835_obio.c | 48 +++++-
sys/arch/arm/broadcom/bcm2835_space.c | 11 +-
sys/arch/arm/broadcom/bcm2835reg.h | 75 ++++++++-
sys/arch/arm/broadcom/bcm2835var.h | 7 +-
sys/arch/arm/broadcom/files.bcm2835 | 13 +-
sys/arch/arm/cortex/armperiph.c | 5 +-
sys/arch/arm/cortex/gtmr.c | 13 +-
sys/arch/arm/cortex/gtmr_var.h | 3 +-
sys/arch/arm/cortex/mpcore_var.h | 3 +-
sys/arch/evbarm/conf/RPI | 10 +-
sys/arch/evbarm/conf/RPI2 | 24 ++
sys/arch/evbarm/conf/mk.rpi | 6 +-
sys/arch/evbarm/conf/std.rpi | 11 +-
sys/arch/evbarm/rpi/genassym.cf | 6 +-
sys/arch/evbarm/rpi/rpi.h | 20 +-
sys/arch/evbarm/rpi/rpi2_start.S | 277 ++++++++++++++++++++++++++++++++++
sys/arch/evbarm/rpi/rpi_machdep.c | 57 +++++-
sys/arch/evbarm/rpi/rpi_start.S | 12 +-
19 files changed, 732 insertions(+), 59 deletions(-)
diffs (truncated from 1324 to 300 lines):
diff -r 78afd8feed8e -r e294363dea89 sys/arch/arm/broadcom/bcm2835_intr.c
--- a/sys/arch/arm/broadcom/bcm2835_intr.c Sat Feb 28 05:42:07 2015 +0000
+++ b/sys/arch/arm/broadcom/bcm2835_intr.c Sat Feb 28 09:34:34 2015 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: bcm2835_intr.c,v 1.4 2014/09/07 15:28:05 skrll Exp $ */
+/* $NetBSD: bcm2835_intr.c,v 1.5 2015/02/28 09:34:34 skrll Exp $ */
/*-
* Copyright (c) 2012 The NetBSD Foundation, Inc.
@@ -30,21 +30,28 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: bcm2835_intr.c,v 1.4 2014/09/07 15:28:05 skrll Exp $");
+__KERNEL_RCSID(0, "$NetBSD: bcm2835_intr.c,v 1.5 2015/02/28 09:34:34 skrll Exp $");
#define _INTR_PRIVATE
+#include "opt_bcm283x.h"
+
#include <sys/param.h>
+#include <sys/bus.h>
+#include <sys/cpu.h>
+#include <sys/device.h>
#include <sys/proc.h>
-#include <sys/device.h>
#include <machine/intr.h>
-#include <sys/bus.h>
+
+#include <arm/locore.h>
#include <arm/pic/picvar.h>
+#include <arm/cortex/gtmr_var.h>
#include <arm/broadcom/bcm_amba.h>
#include <arm/broadcom/bcm2835reg.h>
+#include <arm/broadcom/bcm2835var.h>
static void bcm2835_pic_unblock_irqs(struct pic_softc *, size_t, uint32_t);
static void bcm2835_pic_block_irqs(struct pic_softc *, size_t, uint32_t);
@@ -53,6 +60,21 @@
static void bcm2835_pic_source_name(struct pic_softc *, int, char *,
size_t);
+#if defined(BCM2836)
+static void bcm2836mp_pic_unblock_irqs(struct pic_softc *, size_t, uint32_t);
+static void bcm2836mp_pic_block_irqs(struct pic_softc *, size_t, uint32_t);
+static int bcm2836mp_pic_find_pending_irqs(struct pic_softc *);
+static void bcm2836mp_pic_establish_irq(struct pic_softc *, struct intrsource *);
+static void bcm2836mp_pic_source_name(struct pic_softc *, int, char *,
+ size_t);
+#ifdef MULTIPROCESSOR
+int bcm2836mp_ipi_handler(void *);
+static void bcm2836mp_cpu_init(struct pic_softc *, struct cpu_info *);
+static void bcm2836mp_send_ipi(struct pic_softc *, const kcpuset_t *, u_long);
+#endif
+#endif
+
+
static int bcm2835_icu_match(device_t, cfdata_t, void *);
static void bcm2835_icu_attach(device_t, device_t, void *);
@@ -70,6 +92,26 @@
.pic_name = "bcm2835 pic",
};
+#if defined(BCM2836)
+static struct pic_ops bcm2836mp_picops = {
+ .pic_unblock_irqs = bcm2836mp_pic_unblock_irqs,
+ .pic_block_irqs = bcm2836mp_pic_block_irqs,
+ .pic_find_pending_irqs = bcm2836mp_pic_find_pending_irqs,
+ .pic_establish_irq = bcm2836mp_pic_establish_irq,
+ .pic_source_name = bcm2836mp_pic_source_name,
+#ifdef MULTIPROCESSOR
+ .pic_cpu_init = bcm2836mp_cpu_init,
+ .pic_ipi_send = bcm2836mp_send_ipi,
+#endif
+};
+
+struct pic_softc bcm2836mp_pic = {
+ .pic_ops = &bcm2836mp_picops,
+ .pic_maxsources = BCM2836MP_NIRQ,
+ .pic_name = "bcm2836 mp pic",
+};
+#endif
+
struct bcm2835icu_softc {
device_t sc_dev;
bus_space_tag_t sc_iot;
@@ -111,6 +153,15 @@
"GPU0 Halted", "GPU1 Halted", "Illegal #1", "Illegal #0"
};
+#if defined(BCM2836)
+static const char * const bcm2836mp_sources[BCM2836MP_NIRQ] = {
+ "cntpsirq", "cntpnsirq", "cnthpirq", "cntvirq",
+ "mailbox0", "mailbox1", "mailbox2", "mailbox3",
+};
+#endif
+
+#define BCM2836_INTBIT_GPUPENDING __BIT(8)
+
#define BCM2835_INTBIT_PENDING1 __BIT(8)
#define BCM2835_INTBIT_PENDING2 __BIT(9)
#define BCM2835_INTBIT_ARM __BITS(0,7)
@@ -148,7 +199,16 @@
}
bcmicu_sc = sc;
+
pic_add(sc->sc_pic, 0);
+
+#if defined(BCM2836)
+#ifdef MULTIPROCESSOR
+ aprint_normal(": Multiprocessor");
+#endif
+ pic_add(&bcm2836mp_pic, BCM2836_INT_LOCALBASE);
+#endif
+
aprint_normal("\n");
}
@@ -164,6 +224,9 @@
bcm2835_barrier();
ipl_mask = bcm2835_pic_find_pending_irqs(&bcm2835_pic);
+#if defined(BCM2836)
+ ipl_mask |= bcm2836mp_pic_find_pending_irqs(&bcm2836mp_pic);
+#endif
/*
* Record the pending_ipls and deliver them if we can.
@@ -247,3 +310,122 @@
strlcpy(buf, bcm2835_sources[irq], len);
}
+
+
+#if defined(BCM2836)
+
+#define BCM2836MP_TIMER_IRQS __BITS(3,0)
+#define BCM2836MP_MAILBOX_IRQS __BITS(4,4)
+
+#define BCM2836MP_ALL_IRQS \
+ (BCM2836MP_TIMER_IRQS | BCM2836MP_MAILBOX_IRQS)
+
+static void
+bcm2836mp_pic_unblock_irqs(struct pic_softc *pic, size_t irqbase,
+ uint32_t irq_mask)
+{
+ const int cpuid = 0;
+
+//printf("%s: irqbase %zu irq_mask %08x\n", __func__, irqbase, irq_mask);
+
+ if (irq_mask & BCM2836MP_TIMER_IRQS) {
+ uint32_t mask = __SHIFTOUT(irq_mask, BCM2836MP_TIMER_IRQS);
+ uint32_t val = bus_space_read_4(al_iot, al_ioh,
+ BCM2836_LOCAL_TIMER_IRQ_CONTROLN(cpuid));
+ val |= mask;
+ bus_space_write_4(al_iot, al_ioh,
+ BCM2836_LOCAL_TIMER_IRQ_CONTROLN(cpuid),
+ val);
+ bus_space_barrier(al_iot, al_ioh,
+ BCM2836_LOCAL_TIMER_IRQ_CONTROL_BASE,
+ BCM2836_LOCAL_TIMER_IRQ_CONTROL_SIZE,
+ BUS_SPACE_BARRIER_READ|BUS_SPACE_BARRIER_WRITE);
+//printf("%s: val %08x\n", __func__, val);
+ } else if (irq_mask & BCM2836MP_MAILBOX_IRQS) {
+ uint32_t mask = __SHIFTOUT(irq_mask, BCM2836MP_MAILBOX_IRQS);
+ uint32_t val = bus_space_read_4(al_iot, al_ioh,
+ BCM2836_LOCAL_MAILBOX_IRQ_CONTROLN(cpuid));
+ val |= mask;
+ bus_space_write_4(al_iot, al_ioh,
+ BCM2836_LOCAL_MAILBOX_IRQ_CONTROLN(cpuid),
+ val);
+ bus_space_barrier(al_iot, al_ioh,
+ BCM2836_LOCAL_MAILBOX_IRQ_CONTROL_BASE,
+ BCM2836_LOCAL_MAILBOX_IRQ_CONTROL_SIZE,
+ BUS_SPACE_BARRIER_READ|BUS_SPACE_BARRIER_WRITE);
+ }
+
+ return;
+}
+
+static void
+bcm2836mp_pic_block_irqs(struct pic_softc *pic, size_t irqbase,
+ uint32_t irq_mask)
+{
+ const int cpuid = 0;
+
+//printf("%s: irqbase %zu irq_mask %08x\n", __func__, irqbase, irq_mask);
+ if (irq_mask & BCM2836MP_TIMER_IRQS) {
+ uint32_t mask = __SHIFTOUT(irq_mask, BCM2836MP_TIMER_IRQS);
+ uint32_t val = bus_space_read_4(al_iot, al_ioh,
+ BCM2836_LOCAL_TIMER_IRQ_CONTROLN(cpuid));
+ val &= ~mask;
+ bus_space_write_4(al_iot, al_ioh,
+ BCM2836_LOCAL_TIMER_IRQ_CONTROLN(cpuid),
+ val);
+//printf("%s: val %08x\n", __func__, val);
+ } else if (irq_mask & BCM2836MP_MAILBOX_IRQS) {
+ uint32_t mask = __SHIFTOUT(irq_mask, BCM2836MP_MAILBOX_IRQS);
+ uint32_t val = bus_space_read_4(al_iot, al_ioh,
+ BCM2836_LOCAL_MAILBOX_IRQ_CONTROLN(cpuid));
+ val &= ~mask;
+ bus_space_write_4(al_iot, al_ioh,
+ BCM2836_LOCAL_MAILBOX_IRQ_CONTROLN(cpuid),
+ val);
+ }
+
+ bcm2835_barrier();
+ return;
+}
+
+
+static int
+bcm2836mp_pic_find_pending_irqs(struct pic_softc *pic)
+{
+ const int cpuid = 0;
+ uint32_t lpending;
+ int ipl = 0;
+
+ bcm2835_barrier();
+
+ lpending = bus_space_read_4(al_iot, al_ioh,
+ BCM2836_LOCAL_INTC_IRQPENDINGN(cpuid));
+
+ lpending &= ~BCM2836_INTBIT_GPUPENDING;
+ if (lpending & BCM2836MP_ALL_IRQS) {
+ ipl |= pic_mark_pending_sources(pic, 0 /* BCM2836_INT_LOCALBASE */,
+ lpending & BCM2836MP_ALL_IRQS);
+ }
+
+ return ipl;
+}
+
+static void
+bcm2836mp_pic_establish_irq(struct pic_softc *pic, struct intrsource *is)
+{
+
+ /* Nothing really*/
+ KASSERT(is->is_irq >= 0);
+ KASSERT(is->is_irq < BCM2836MP_NIRQ);
+// KASSERT(is->is_type == IST_LEVEL);
+
+
+}
+
+static void
+bcm2836mp_pic_source_name(struct pic_softc *pic, int irq, char *buf, size_t len)
+{
+ irq %= 32;
+ strlcpy(buf, bcm2836mp_sources[irq], len);
+}
+#endif
diff -r 78afd8feed8e -r e294363dea89 sys/arch/arm/broadcom/bcm2835_obio.c
--- a/sys/arch/arm/broadcom/bcm2835_obio.c Sat Feb 28 05:42:07 2015 +0000
+++ b/sys/arch/arm/broadcom/bcm2835_obio.c Sat Feb 28 09:34:34 2015 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: bcm2835_obio.c,v 1.22 2014/10/07 08:30:05 skrll Exp $ */
+/* $NetBSD: bcm2835_obio.c,v 1.23 2015/02/28 09:34:34 skrll Exp $ */
/*-
* Copyright (c) 2012, 2014 The NetBSD Foundation, Inc.
@@ -30,11 +30,13 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: bcm2835_obio.c,v 1.22 2014/10/07 08:30:05 skrll Exp $");
+__KERNEL_RCSID(0, "$NetBSD: bcm2835_obio.c,v 1.23 2015/02/28 09:34:34 skrll Exp $");
#include "locators.h"
#include "obio.h"
+#include "opt_bcm283x.h"
+
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
@@ -42,8 +44,12 @@
#include <sys/bus.h>
#include <arm/broadcom/bcm2835reg.h>
+#include <arm/broadcom/bcm2835var.h>
#include <arm/broadcom/bcm_amba.h>
+#include <arm/cortex/mpcore_var.h>
+#include <arm/cortex/gtmr_var.h>
+
struct obio_softc {
device_t sc_dev;
bus_dma_tag_t sc_dmat;
@@ -76,6 +82,13 @@
.ad_size = BCM2835_ARMICU_SIZE,
.ad_intr = -1,
},
+#if defined(BCM2836)
+ {
+ /* GTMR */
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