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[src/trunk]: src/sys/arch XU4 FDT checkpoint
details: https://anonhg.NetBSD.org/src/rev/4fb3675ee5de
branches: trunk
changeset: 342411:4fb3675ee5de
user: marty <marty%NetBSD.org@localhost>
date: Mon Dec 21 00:52:50 2015 +0000
description:
XU4 FDT checkpoint
It is rather amazing that XU4 gets as far as it does, given how much of this
code simply doesn't work. Focusing now on getting everything converted to
FDT. Next up USB and clocks. After that nuke everything that's not needed
and start the port in earnest.
diffstat:
sys/arch/arm/samsung/exynos_chipid.c | 105 ++++++++
sys/arch/arm/samsung/exynos_combiner.c | 217 ++++++++++++++++++
sys/arch/arm/samsung/exynos_i2c.c | 394 ++++++++++++--------------------
sys/arch/arm/samsung/exynos_rtc.c | 151 ++++++++++++
sys/arch/arm/samsung/files.exynos | 25 +-
sys/arch/evbarm/conf/EXYNOS | 19 +-
6 files changed, 662 insertions(+), 249 deletions(-)
diffs (truncated from 1099 to 300 lines):
diff -r 7632317b6e69 -r 4fb3675ee5de sys/arch/arm/samsung/exynos_chipid.c
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/arch/arm/samsung/exynos_chipid.c Mon Dec 21 00:52:50 2015 +0000
@@ -0,0 +1,105 @@
+/* $NetBSD: exynos_chipid.c,v 1.1 2015/12/21 00:52:50 marty Exp $ */
+
+/*-
+* Copyright (c) 2015 The NetBSD Foundation, Inc.
+* All rights reserved.
+*
+* This code is derived from software contributed to The NetBSD Foundation
+* by Marty Fouts
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions
+* are met:
+* 1. Redistributions of source code must retain the above copyright
+* notice, this list of conditions and the following disclaimer.
+* 2. Redistributions in binary form must reproduce the above copyright
+* notice, this list of conditions and the following disclaimer in the
+* documentation and/or other materials provided with the distribution.
+*
+* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+* POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#include "opt_exynos.h"
+#include "opt_arm_debug.h"
+#include "gpio.h"
+
+#include <sys/cdefs.h>
+__KERNEL_RCSID(1, "$NetBSD: exynos_chipid.c,v 1.1 2015/12/21 00:52:50 marty Exp $");
+
+#include <sys/param.h>
+#include <sys/bus.h>
+#include <sys/device.h>
+#include <sys/intr.h>
+#include <sys/systm.h>
+#include <sys/kmem.h>
+#include <sys/gpio.h>
+
+#include <dev/gpio/gpiovar.h>
+
+#include <arm/samsung/exynos_reg.h>
+#include <arm/samsung/exynos_io.h>
+#include <arm/samsung/exynos_intr.h>
+
+#include <dev/fdt/fdtvar.h>
+
+struct exynos_chipid_softc {
+ device_t sc_dev;
+ bus_space_tag_t sc_bst;
+ bus_space_handle_t sc_bsh;
+
+};
+
+static int exynos_chipid_match(device_t, cfdata_t, void *);
+static void exynos_chipid_attach(device_t, device_t, void *);
+
+CFATTACH_DECL_NEW(exynos_chipid, sizeof(struct exynos_chipid_softc),
+ exynos_chipid_match, exynos_chipid_attach, NULL, NULL);
+
+static int
+exynos_chipid_match(device_t parent, cfdata_t cf, void *aux)
+{
+ const char * const compatible[] = { "samsung,exynos4210-chipid",
+ NULL };
+ struct fdt_attach_args * const faa = aux;
+ return of_match_compatible(faa->faa_phandle, compatible);
+}
+
+static void
+exynos_chipid_attach(device_t parent, device_t self, void *aux)
+{
+ struct exynos_chipid_softc * const sc
+ = kmem_zalloc(sizeof(*sc), KM_SLEEP);
+ struct fdt_attach_args * const faa = aux;
+ bus_addr_t addr;
+ bus_size_t size;
+ int error;
+
+ if (fdtbus_get_reg(faa->faa_phandle, 0, &addr, &size) != 0) {
+ aprint_error(": couldn't get registers\n");
+ return;
+ }
+
+ sc->sc_dev = self;
+ sc->sc_bst = faa->faa_bst;
+ error = bus_space_map(sc->sc_bst, addr, size, 0, &sc->sc_bsh);
+ if (error) {
+ aprint_error(": couldn't map %#llx: %d",
+ (uint64_t)addr, error);
+ return;
+ }
+
+ aprint_normal(" @ 0x%08x: CHIPID - NOT IMPLEMENTED", (uint)addr);
+ aprint_naive("\n");
+ aprint_normal("\n");
+
+}
diff -r 7632317b6e69 -r 4fb3675ee5de sys/arch/arm/samsung/exynos_combiner.c
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/arch/arm/samsung/exynos_combiner.c Mon Dec 21 00:52:50 2015 +0000
@@ -0,0 +1,217 @@
+/* $NetBSD: exynos_combiner.c,v 1.1 2015/12/21 00:52:50 marty Exp $ */
+
+/*-
+* Copyright (c) 2015 The NetBSD Foundation, Inc.
+* All rights reserved.
+*
+* This code is derived from software contributed to The NetBSD Foundation
+* by Marty Fouts
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions
+* are met:
+* 1. Redistributions of source code must retain the above copyright
+* notice, this list of conditions and the following disclaimer.
+* 2. Redistributions in binary form must reproduce the above copyright
+* notice, this list of conditions and the following disclaimer in the
+* documentation and/or other materials provided with the distribution.
+*
+* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+* POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#include "opt_exynos.h"
+#include "opt_arm_debug.h"
+#include "gpio.h"
+
+#include <sys/cdefs.h>
+__KERNEL_RCSID(1, "$NetBSD: exynos_combiner.c,v 1.1 2015/12/21 00:52:50 marty Exp $");
+
+#include <sys/param.h>
+#include <sys/bus.h>
+#include <sys/device.h>
+#include <sys/intr.h>
+#include <sys/systm.h>
+#include <sys/kmem.h>
+
+#include <arm/cortex/gic_intr.h>
+
+#include <arm/samsung/exynos_reg.h>
+#include <arm/samsung/exynos_io.h>
+#include <arm/samsung/exynos_intr.h>
+
+#include <dev/fdt/fdtvar.h>
+
+struct exynos_combiner_softc {
+ device_t sc_dev;
+ int sc_phandle;
+
+};
+
+static int exynos_combiner_match(device_t, cfdata_t, void *);
+static void exynos_combiner_attach(device_t, device_t, void *);
+
+static void * exynos_combiner_establish(device_t, int, u_int, int, int,
+ int (*)(void *), void *);
+static void exynos_combiner_disestablish(device_t, void *);
+static bool exynos_combiner_intrstr(device_t, int, u_int, char *, size_t);
+
+struct fdtbus_interrupt_controller_func exynos_combiner_funcs = {
+ .establish = exynos_combiner_establish,
+ .disestablish = exynos_combiner_disestablish,
+ .intrstr = exynos_combiner_intrstr
+};
+
+CFATTACH_DECL_NEW(exynos_intr, sizeof(struct exynos_combiner_softc),
+ exynos_combiner_match, exynos_combiner_attach, NULL, NULL);
+
+static int
+exynos_combiner_match(device_t parent, cfdata_t cf, void *aux)
+{
+ const char * const compatible[] = { "samsung,exynos4210-combiner",
+ NULL };
+ struct fdt_attach_args * const faa = aux;
+ return of_match_compatible(faa->faa_phandle, compatible);
+}
+
+static void
+exynos_combiner_attach(device_t parent, device_t self, void *aux)
+{
+ struct exynos_combiner_softc * const sc
+ = kmem_zalloc(sizeof(*sc), KM_SLEEP);
+ struct fdt_attach_args * const faa = aux;
+ bus_addr_t addr;
+ bus_size_t size;
+ int error;
+
+ if (fdtbus_get_reg(faa->faa_phandle, 0, &addr, &size) != 0) {
+ aprint_error(": couldn't get registers\n");
+ return;
+ }
+
+ sc->sc_dev = self;
+ sc->sc_phandle = faa->faa_phandle;
+ error = fdtbus_register_interrupt_controller(self, faa->faa_phandle,
+ &exynos_combiner_funcs);
+ if (error) {
+ aprint_error(": couldn't register with fdtbus: %d\n", error);
+ return;
+ }
+
+
+ aprint_normal(" @ 0x%08x: interrupt combiner, NOT IMPLEMENTED",
+ (uint)addr);
+ aprint_naive("\n");
+ aprint_normal("\n");
+
+}
+
+
+static void *
+exynos_combiner_establish(device_t dev, int phandle, u_int index, int ipl,
+ int flags,
+ int (*func)(void *), void *arg)
+{
+ struct exynos_combiner_softc * const sc = device_private(dev);
+ int iflags = (flags & FDT_INTR_MPSAFE) ? IST_MPSAFE : 0;
+ u_int *interrupts;
+ int interrupt_cells, len;
+
+ if (of_getprop_uint32(sc->sc_phandle, "#interrupt-cells",
+ &interrupt_cells)) {
+ return NULL;
+ }
+
+ len = OF_getproplen(phandle, "interrupts");
+ if (len <= 0)
+ return NULL;
+
+ const u_int clen = interrupt_cells * 4;
+ const u_int nintr = len / interrupt_cells;
+
+ if (index >= nintr)
+ return NULL;
+
+ interrupts = kmem_alloc(len, KM_SLEEP);
+
+ if (OF_getprop(phandle, "interrupts", interrupts, len) != len) {
+ kmem_free(interrupts, len);
+ return NULL;
+ }
+
+ /* 1st cell is the interrupt type; */
+ /* 2nd cell is the interrupt number */
+ /* 3rd cell is flags */
+
+ const u_int type = be32toh(interrupts[index * clen + 0]);
+ const u_int intr = be32toh(interrupts[index * clen + 1]);
+ const u_int irq = type == 0 ? IRQ_SPI(intr) : IRQ_PPI(intr);
+ const u_int trig = be32toh(interrupts[index * clen + 2]) & 0xf;
+ const u_int level = (trig & 0x3) ? IST_EDGE : IST_LEVEL;
+
+ kmem_free(interrupts, len);
+
+ return intr_establish(irq, ipl, level | iflags, func, arg);
+}
+
+static void
+exynos_combiner_disestablish(device_t dev, void *ih)
+{
+ intr_disestablish(ih);
+}
+
+static bool
+exynos_combiner_intrstr(device_t dev, int phandle, u_int index, char *buf,
+ size_t buflen)
+{
+ struct exynos_combiner_softc * const sc = device_private(dev);
+ u_int *interrupts;
+ int interrupt_cells, len;
+
+ if (of_getprop_uint32(sc->sc_phandle, "#interrupt-cells",
+ &interrupt_cells)) {
+ return false;
+ }
+
+ len = OF_getproplen(phandle, "interrupts");
+ if (len <= 0) {
+ return false;
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