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[src/trunk]: src/sys/arch Add IIC support.
details: https://anonhg.NetBSD.org/src/rev/9de291f21ef8
branches: trunk
changeset: 458096:9de291f21ef8
user: hkenken <hkenken%NetBSD.org@localhost>
date: Tue Jul 30 06:52:57 2019 +0000
description:
Add IIC support.
diffstat:
sys/arch/arm/imx/fdt/files.imx6 | 8 +++-
sys/arch/arm/imx/fdt/imx6_i2c.c | 80 +++++++++++++++++++++++++++++++++++++++++
sys/arch/arm/imx/imxi2c.c | 12 ++----
sys/arch/evbarm/conf/IMX | 6 ++-
4 files changed, 96 insertions(+), 10 deletions(-)
diffs (158 lines):
diff -r 2a148d097b33 -r 9de291f21ef8 sys/arch/arm/imx/fdt/files.imx6
--- a/sys/arch/arm/imx/fdt/files.imx6 Tue Jul 30 06:35:03 2019 +0000
+++ b/sys/arch/arm/imx/fdt/files.imx6 Tue Jul 30 06:52:57 2019 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: files.imx6,v 1.3 2019/07/30 06:26:31 hkenken Exp $
+# $NetBSD: files.imx6,v 1.4 2019/07/30 06:52:57 hkenken Exp $
#
# Configuration info for the Freescale i.MX6
#
@@ -78,3 +78,9 @@
attach imxpcie at fdt with imxpcie_fdt
file arch/arm/imx/imxpcie.c imxpcie
file arch/arm/imx/fdt/imx6_pcie.c imxpcie_fdt
+
+# iMX iic Controler
+device imxi2c: motoi2c, i2cbus, i2cexec
+attach imxi2c at fdt
+file arch/arm/imx/imxi2c.c imxi2c
+file arch/arm/imx/fdt/imx6_i2c.c imxi2c
diff -r 2a148d097b33 -r 9de291f21ef8 sys/arch/arm/imx/fdt/imx6_i2c.c
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/arch/arm/imx/fdt/imx6_i2c.c Tue Jul 30 06:52:57 2019 +0000
@@ -0,0 +1,80 @@
+/* $NetBSD: imx6_i2c.c,v 1.1 2019/07/30 06:52:57 hkenken Exp $ */
+/*-
+ * Copyright (c) 2019 Genetec Corporation. All rights reserved.
+ * Written by Hashimoto Kenichi for Genetec Corporation.
+ *
+ * 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 AUTHOR ``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 AUTHOR 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 <sys/cdefs.h>
+__KERNEL_RCSID(0, "$NetBSD: imx6_i2c.c,v 1.1 2019/07/30 06:52:57 hkenken Exp $");
+
+#include <sys/bus.h>
+
+#include <arm/imx/imxi2cvar.h>
+
+#include <dev/fdt/fdtvar.h>
+
+int
+imxi2c_match(device_t parent, cfdata_t cf, void *aux)
+{
+ const char * const compatible[] = { "fsl,imx6q-i2c", NULL };
+ struct fdt_attach_args * const faa = aux;
+
+ return of_match_compatible(faa->faa_phandle, compatible);
+}
+
+void
+imxi2c_attach(device_t parent __unused, device_t self, void *aux)
+{
+ struct imxi2c_softc *sc = device_private(self);
+ struct fdt_attach_args * const faa = aux;
+ const int phandle = faa->faa_phandle;
+ bus_space_tag_t bst = faa->faa_bst;
+ bus_addr_t addr;
+ bus_size_t size;
+ int error;
+
+ if (fdtbus_get_reg(phandle, 0, &addr, &size) != 0) {
+ aprint_error(": couldn't get registers\n");
+ return;
+ }
+
+ sc->sc_clk = fdtbus_clock_get_index(phandle, 0);
+ if (sc->sc_clk == NULL) {
+ aprint_error(": couldn't get clock\n");
+ return;
+ }
+
+ error = clk_enable(sc->sc_clk);
+ if (error) {
+ aprint_error_dev(sc->sc_dev, "couldn't enable: %d\n", error);
+ return;
+ }
+
+ u_int freq;
+ error = of_getprop_uint32(phandle, "clock-frequency", &freq);
+ if (error)
+ freq = 100000;
+ imxi2c_set_freq(self, clk_get_rate(sc->sc_clk), freq);
+ imxi2c_attach_common(parent, self, bst, addr, size, -1, 0);
+}
+
diff -r 2a148d097b33 -r 9de291f21ef8 sys/arch/arm/imx/imxi2c.c
--- a/sys/arch/arm/imx/imxi2c.c Tue Jul 30 06:35:03 2019 +0000
+++ b/sys/arch/arm/imx/imxi2c.c Tue Jul 30 06:52:57 2019 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: imxi2c.c,v 1.2 2015/03/27 05:31:23 hkenken Exp $ */
+/* $NetBSD: imxi2c.c,v 1.3 2019/07/30 06:52:57 hkenken Exp $ */
/*
* Copyright (c) 2012, 2015 Genetec Corporation. All rights reserved.
@@ -27,9 +27,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: imxi2c.c,v 1.2 2015/03/27 05:31:23 hkenken Exp $");
-
-#include "opt_imx.h"
+__KERNEL_RCSID(0, "$NetBSD: imxi2c.c,v 1.3 2019/07/30 06:52:57 hkenken Exp $");
#include <sys/param.h>
#include <sys/bus.h>
@@ -39,12 +37,10 @@
#include <dev/i2c/motoi2creg.h>
#include <arm/imx/imxi2cvar.h>
-struct clk_div {
+static const struct clk_div {
uint8_t ic_val;
int div;
-};
-
-static const struct clk_div imxi2c_clk_div[] = {
+} imxi2c_clk_div[] = {
{0x20, 22}, {0x21, 24}, {0x22, 26}, {0x23, 28},
{0x00, 30}, {0x01, 32}, {0x24, 32}, {0x02, 36},
{0x25, 36}, {0x26, 40}, {0x03, 42}, {0x27, 44},
diff -r 2a148d097b33 -r 9de291f21ef8 sys/arch/evbarm/conf/IMX
--- a/sys/arch/evbarm/conf/IMX Tue Jul 30 06:35:03 2019 +0000
+++ b/sys/arch/evbarm/conf/IMX Tue Jul 30 06:52:57 2019 +0000
@@ -1,5 +1,5 @@
#
-# $NetBSD: IMX,v 1.1 2019/07/24 13:12:34 hkenken Exp $
+# $NetBSD: IMX,v 1.2 2019/07/30 06:52:57 hkenken Exp $
#
# NXP(Freescale) I.MX family SoCs
#
@@ -130,5 +130,9 @@
ppb* at pci? dev ? function ?
pci* at ppb?
+# IIC
+imxi2c* at fdt?
+iic* at imxi2c?
+
cinclude "arch/evbarm/conf/IMX.local"
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