Module Name: src
Committed By: jmcneill
Date: Sat Oct 7 13:28:59 UTC 2017
Modified Files:
src/sys/arch/arm/sunxi: files.sunxi
Added Files:
src/sys/arch/arm/sunxi: sunxi_gmac.c sunxi_gmacclk.c
Log Message:
Add support for sun6i/sun7i ethernet
To generate a diff of this commit:
cvs rdiff -u -r1.28 -r1.29 src/sys/arch/arm/sunxi/files.sunxi
cvs rdiff -u -r0 -r1.1 src/sys/arch/arm/sunxi/sunxi_gmac.c \
src/sys/arch/arm/sunxi/sunxi_gmacclk.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/arch/arm/sunxi/files.sunxi
diff -u src/sys/arch/arm/sunxi/files.sunxi:1.28 src/sys/arch/arm/sunxi/files.sunxi:1.29
--- src/sys/arch/arm/sunxi/files.sunxi:1.28 Fri Oct 6 21:20:59 2017
+++ src/sys/arch/arm/sunxi/files.sunxi Sat Oct 7 13:28:59 2017
@@ -1,4 +1,4 @@
-# $NetBSD: files.sunxi,v 1.28 2017/10/06 21:20:59 jmcneill Exp $
+# $NetBSD: files.sunxi,v 1.29 2017/10/07 13:28:59 jmcneill Exp $
#
# Configuration info for Allwinner sunxi family SoCs
#
@@ -73,6 +73,11 @@ device sunxigates
attach sunxigates at fdt with sunxi_gates
file arch/arm/sunxi/sunxi_gates.c sunxi_gates
+# GMAC MII/RGMII clock mux
+device sunxigmacclk
+attach sunxigmacclk at fdt with sunxi_gmacclk
+file arch/arm/sunxi/sunxi_gmacclk.c sunxi_gmacclk
+
# Interrupt controller
device sunxiintc: pic, pic_splfuncs
attach sunxiintc at fdt with sunxi_intc
@@ -132,6 +137,10 @@ device sunxiemac: arp, ether, ifnet, mii
attach sunxiemac at fdt with sunxi_emac
file arch/arm/sunxi/sunxi_emac.c sunxi_emac
+# GMAC
+attach awge at fdt with sunxi_gmac
+file arch/arm/sunxi/sunxi_gmac.c sunxi_gmac
+
# Timer
device sunxitimer
attach sunxitimer at fdt with sunxi_timer
Added files:
Index: src/sys/arch/arm/sunxi/sunxi_gmac.c
diff -u /dev/null src/sys/arch/arm/sunxi/sunxi_gmac.c:1.1
--- /dev/null Sat Oct 7 13:28:59 2017
+++ src/sys/arch/arm/sunxi/sunxi_gmac.c Sat Oct 7 13:28:59 2017
@@ -0,0 +1,147 @@
+/* $NetBSD: sunxi_gmac.c,v 1.1 2017/10/07 13:28:59 jmcneill Exp $ */
+
+/*-
+ * Copyright (c) 2017 Jared McNeill <[email protected]>
+ * All rights reserved.
+ *
+ * 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 <sys/cdefs.h>
+
+__KERNEL_RCSID(0, "$NetBSD: sunxi_gmac.c,v 1.1 2017/10/07 13:28:59 jmcneill Exp $");
+
+#include <sys/param.h>
+#include <sys/bus.h>
+#include <sys/device.h>
+#include <sys/intr.h>
+#include <sys/systm.h>
+
+#include <net/if.h>
+#include <net/if_ether.h>
+#include <net/if_media.h>
+
+#include <dev/mii/miivar.h>
+
+#include <dev/ic/dwc_gmac_var.h>
+#include <dev/ic/dwc_gmac_reg.h>
+
+#include <dev/fdt/fdtvar.h>
+
+#define GMAC_TX_RATE_MII 25000000
+#define GMAC_TX_RATE_RGMII 125000000
+
+static const char * compatible[] = {
+ "allwinner,sun7i-a20-gmac",
+ NULL
+};
+
+static int
+sunxi_gmac_intr(void *arg)
+{
+ return dwc_gmac_intr(arg);
+}
+
+static int
+sunxi_gmac_match(device_t parent, cfdata_t cf, void *aux)
+{
+ struct fdt_attach_args * const faa = aux;
+
+ return of_match_compatible(faa->faa_phandle, compatible);
+}
+
+static void
+sunxi_gmac_attach(device_t parent, device_t self, void *aux)
+{
+ struct dwc_gmac_softc * const sc = device_private(self);
+ struct fdt_attach_args * const faa = aux;
+ const int phandle = faa->faa_phandle;
+ struct clk *clk_gmac, *clk_gmac_tx;
+ const char *phy_mode;
+ char intrstr[128];
+ bus_addr_t addr;
+ bus_size_t size;
+
+ if (fdtbus_get_reg(phandle, 0, &addr, &size) != 0) {
+ aprint_error(": couldn't get registers\n");
+ return;
+ }
+
+ sc->sc_dev = self;
+ sc->sc_bst = faa->faa_bst;
+ if (bus_space_map(sc->sc_bst, addr, size, 0, &sc->sc_bsh) != 0) {
+ aprint_error(": couldn't map registers\n");
+ return;
+ }
+ sc->sc_dmat = faa->faa_dmat;
+
+ if (!fdtbus_intr_str(phandle, 0, intrstr, sizeof(intrstr))) {
+ aprint_error(": failed to decode interrupt\n");
+ return;
+ }
+
+ clk_gmac = fdtbus_clock_get(phandle, "stmmaceth");
+ clk_gmac_tx = fdtbus_clock_get(phandle, "allwinner_gmac_tx");
+ if (clk_gmac == NULL || clk_gmac_tx == NULL) {
+ aprint_error(": couldn't get clocks\n");
+ return;
+ }
+
+ phy_mode = fdtbus_get_string(phandle, "phy-mode");
+ if (phy_mode == NULL) {
+ aprint_error(": missing 'phy-mode' property\n");
+ return;
+ }
+ if (strcmp(phy_mode, "mii") == 0) {
+ if (clk_set_rate(clk_gmac_tx, GMAC_TX_RATE_MII) != 0) {
+ aprint_error(": failed to set TX clock rate (MII)\n");
+ return;
+ }
+ } else if (strcmp(phy_mode, "rgmii") == 0) {
+ if (clk_set_rate(clk_gmac_tx, GMAC_TX_RATE_RGMII) != 0) {
+ aprint_error(": failed to set TX clock rate (RGMII)\n");
+ return;
+ }
+ } else {
+ aprint_error(": unsupported phy-mode '%s'\n", phy_mode);
+ return;
+ }
+
+ if (clk_enable(clk_gmac_tx) != 0 || clk_enable(clk_gmac) != 0) {
+ aprint_error(": couldn't enable clocks\n");
+ return;
+ }
+
+ aprint_naive("\n");
+ aprint_normal(": GMAC\n");
+
+ if (fdtbus_intr_establish(phandle, 0, IPL_NET, 0, sunxi_gmac_intr, sc) == NULL) {
+ aprint_error_dev(self, "failed to establish interrupt on %s\n", intrstr);
+ return;
+ }
+ aprint_normal_dev(self, "interrupting on %s\n", intrstr);
+
+ dwc_gmac_attach(sc, GMAC_MII_CLK_150_250M_DIV102);
+}
+
+CFATTACH_DECL_NEW(sunxi_gmac, sizeof(struct dwc_gmac_softc),
+ sunxi_gmac_match, sunxi_gmac_attach, NULL, NULL);
Index: src/sys/arch/arm/sunxi/sunxi_gmacclk.c
diff -u /dev/null src/sys/arch/arm/sunxi/sunxi_gmacclk.c:1.1
--- /dev/null Sat Oct 7 13:28:59 2017
+++ src/sys/arch/arm/sunxi/sunxi_gmacclk.c Sat Oct 7 13:28:59 2017
@@ -0,0 +1,211 @@
+/* $NetBSD: sunxi_gmacclk.c,v 1.1 2017/10/07 13:28:59 jmcneill Exp $ */
+
+/*-
+ * Copyright (c) 2017 Jared McNeill <[email protected]>
+ * All rights reserved.
+ *
+ * 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: sunxi_gmacclk.c,v 1.1 2017/10/07 13:28:59 jmcneill Exp $");
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/device.h>
+#include <sys/kmem.h>
+#include <sys/bus.h>
+
+#include <dev/clk/clk_backend.h>
+
+#include <dev/fdt/fdtvar.h>
+
+#define GMAC_CLK_PIT __BIT(2)
+#define GMAC_CLK_PIT_MII 0
+#define GMAC_CLK_PIT_RGMII 1
+#define GMAC_CLK_SRC __BITS(1,0)
+#define GMAC_CLK_SRC_MII 0
+#define GMAC_CLK_SRC_EXT_RGMII 1
+#define GMAC_CLK_SRC_RGMII 2
+
+static int sunxi_gmacclk_match(device_t, cfdata_t, void *);
+static void sunxi_gmacclk_attach(device_t, device_t, void *);
+
+static struct clk *sunxi_gmacclk_decode(device_t, const void *, size_t);
+
+static const struct fdtbus_clock_controller_func sunxi_gmacclk_fdt_funcs = {
+ .decode = sunxi_gmacclk_decode
+};
+
+static struct clk *sunxi_gmacclk_get(void *, const char *);
+static void sunxi_gmacclk_put(void *, struct clk *);
+static int sunxi_gmacclk_set_rate(void *, struct clk *, u_int);
+static u_int sunxi_gmacclk_get_rate(void *, struct clk *);
+static struct clk *sunxi_gmacclk_get_parent(void *, struct clk *);
+
+static const struct clk_funcs sunxi_gmacclk_clk_funcs = {
+ .get = sunxi_gmacclk_get,
+ .put = sunxi_gmacclk_put,
+ .set_rate = sunxi_gmacclk_set_rate,
+ .get_rate = sunxi_gmacclk_get_rate,
+ .get_parent = sunxi_gmacclk_get_parent,
+};
+
+struct sunxi_gmacclk_softc {
+ device_t sc_dev;
+ int sc_phandle;
+ bus_space_tag_t sc_bst;
+ bus_space_handle_t sc_bsh;
+
+ struct clk_domain sc_clkdom;
+ struct clk sc_clk;
+ struct clk *sc_parent[2];
+};
+
+#define RD4(sc, reg) \
+ bus_space_read_4((sc)->sc_bst, (sc)->sc_bsh, (reg))
+#define WR4(sc, reg, val) \
+ bus_space_write_4((sc)->sc_bst, (sc)->sc_bsh, (reg), (val))
+
+CFATTACH_DECL_NEW(sunxi_gmacclk, sizeof(struct sunxi_gmacclk_softc),
+ sunxi_gmacclk_match, sunxi_gmacclk_attach, NULL, NULL);
+
+static int
+sunxi_gmacclk_match(device_t parent, cfdata_t cf, void *aux)
+{
+ const char * const compatible[] = { "allwinner,sun7i-a20-gmac-clk", NULL };
+ const struct fdt_attach_args *faa = aux;
+
+ return of_match_compatible(faa->faa_phandle, compatible);
+}
+
+static void
+sunxi_gmacclk_attach(device_t parent, device_t self, void *aux)
+{
+ struct sunxi_gmacclk_softc * const sc = device_private(self);
+ const struct fdt_attach_args *faa = aux;
+ const int phandle = faa->faa_phandle;
+ bus_addr_t addr;
+ bus_size_t size;
+
+ if (fdtbus_get_reg(phandle, 0, &addr, &size) != 0) {
+ aprint_error(": couldn't get registers\n");
+ return;
+ }
+
+ sc->sc_dev = self;
+ sc->sc_phandle = phandle;
+ sc->sc_bst = faa->faa_bst;
+ if (bus_space_map(sc->sc_bst, addr, size, 0, &sc->sc_bsh) != 0) {
+ aprint_error(": couldn't map registers\n");
+ return;
+ }
+ sc->sc_parent[0] = fdtbus_clock_get_index(phandle, 0);
+ sc->sc_parent[1] = fdtbus_clock_get_index(phandle, 1);
+ if (sc->sc_parent[0] == NULL || sc->sc_parent[1] == NULL) {
+ aprint_error(": couldn't get parent clocks\n");
+ return;
+ }
+
+ sc->sc_clkdom.funcs = &sunxi_gmacclk_clk_funcs;
+ sc->sc_clkdom.priv = sc;
+
+ sc->sc_clk.domain = &sc->sc_clkdom;
+ sc->sc_clk.name = kmem_asprintf("%s", faa->faa_name);
+
+ aprint_naive("\n");
+ aprint_normal(": GMAC MII/RGMII clock mux\n");
+
+ fdtbus_register_clock_controller(self, phandle, &sunxi_gmacclk_fdt_funcs);
+}
+
+static struct clk *
+sunxi_gmacclk_decode(device_t dev, const void *data, size_t len)
+{
+ struct sunxi_gmacclk_softc * const sc = device_private(dev);
+
+ if (len != 0)
+ return NULL;
+
+ return &sc->sc_clk;
+}
+
+static struct clk *
+sunxi_gmacclk_get(void *priv, const char *name)
+{
+ struct sunxi_gmacclk_softc * const sc = priv;
+
+ if (strcmp(name, sc->sc_clk.name) != 0)
+ return NULL;
+
+ return &sc->sc_clk;
+}
+
+static void
+sunxi_gmacclk_put(void *priv, struct clk *clk)
+{
+}
+
+static int
+sunxi_gmacclk_set_rate(void *priv, struct clk *clk, u_int rate)
+{
+ struct sunxi_gmacclk_softc * const sc = priv;
+ uint32_t val;
+
+ val = RD4(sc, 0);
+ val &= ~(GMAC_CLK_PIT|GMAC_CLK_SRC);
+ if (rate == clk_get_rate(sc->sc_parent[GMAC_CLK_PIT_MII])) {
+ /* MII clock */
+ val |= __SHIFTIN(GMAC_CLK_PIT_MII, GMAC_CLK_PIT);
+ val |= __SHIFTIN(GMAC_CLK_SRC_MII, GMAC_CLK_SRC);
+ } else if (rate == clk_get_rate(sc->sc_parent[GMAC_CLK_PIT_RGMII])) {
+ /* RGMII clock */
+ val |= __SHIFTIN(GMAC_CLK_PIT_RGMII, GMAC_CLK_PIT);
+ val |= __SHIFTIN(GMAC_CLK_SRC_RGMII, GMAC_CLK_SRC);
+ } else {
+ return ENXIO;
+ }
+ WR4(sc, 0, val);
+
+ return 0;
+}
+
+static u_int
+sunxi_gmacclk_get_rate(void *priv, struct clk *clk)
+{
+ struct clk *clk_parent = clk_get_parent(clk);
+
+ return clk_get_rate(clk_parent);
+}
+
+static struct clk *
+sunxi_gmacclk_get_parent(void *priv, struct clk *clk)
+{
+ struct sunxi_gmacclk_softc * const sc = priv;
+ uint32_t val;
+ u_int sel;
+
+ val = RD4(sc, 0);
+ sel = __SHIFTOUT(val, GMAC_CLK_PIT);
+
+ return sc->sc_parent[sel];
+}
