Module Name:    src
Committed By:   jmcneill
Date:           Wed Apr 26 01:51:53 UTC 2017

Modified Files:
        src/sys/arch/evbarm/conf: TEGRA
        src/sys/dev/fdt: fdtbus.c fdtvar.h files.fdt

Log Message:
Allow for specifying (optional) pass number locator for devices at fdt.


To generate a diff of this commit:
cvs rdiff -u -r1.17 -r1.18 src/sys/arch/evbarm/conf/TEGRA
cvs rdiff -u -r1.8 -r1.9 src/sys/dev/fdt/fdtbus.c
cvs rdiff -u -r1.12 -r1.13 src/sys/dev/fdt/fdtvar.h
cvs rdiff -u -r1.10 -r1.11 src/sys/dev/fdt/files.fdt

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/evbarm/conf/TEGRA
diff -u src/sys/arch/evbarm/conf/TEGRA:1.17 src/sys/arch/evbarm/conf/TEGRA:1.18
--- src/sys/arch/evbarm/conf/TEGRA:1.17	Sat Apr 22 23:53:24 2017
+++ src/sys/arch/evbarm/conf/TEGRA	Wed Apr 26 01:51:52 2017
@@ -1,5 +1,5 @@
 #
-#	$NetBSD: TEGRA,v 1.17 2017/04/22 23:53:24 jmcneill Exp $
+#	$NetBSD: TEGRA,v 1.18 2017/04/26 01:51:52 jmcneill Exp $
 #
 #	NVIDIA Tegra K1 (T124)
 #
@@ -42,28 +42,28 @@ fdt*		at fdtbus?
 # CPU frequency scaling
 tegra124cpu*	at fdt?
 
-fclock*		at fdt?
-fregulator*	at fdt?
+fclock*		at fdt? pass 4
+fregulator*	at fdt? pass 4
 gpiokeys*	at fdt?
 
 # Interrupt controller
-tegralic*	at fdt?			# LIC
-gic*		at fdt?			# GIC
+tegralic*	at fdt? pass 1		# LIC
+gic*		at fdt? pass 1		# GIC
 
 # Memory controller
-tegramc*	at fdt?			# MC
+tegramc*	at fdt?	pass 4		# MC
 
 # FUSE controller
-tegrafuse*	at fdt?			# FUSE
+tegrafuse*	at fdt? pass 4		# FUSE
 
 # Power management controller
-tegrapmc*	at fdt?			# PMC
+tegrapmc*	at fdt? pass 4		# PMC
 
 # Clock and Reset controller
-tegra124car*	at fdt?			# CAR
+tegra124car*	at fdt? pass 3		# CAR
 
 # GPIO controller
-tegragpio*	at fdt?			# GPIO
+tegragpio*	at fdt? pass 2		# GPIO
 gpio*		at gpiobus?
 
 # Timers

Index: src/sys/dev/fdt/fdtbus.c
diff -u src/sys/dev/fdt/fdtbus.c:1.8 src/sys/dev/fdt/fdtbus.c:1.9
--- src/sys/dev/fdt/fdtbus.c:1.8	Sun Apr 16 12:24:57 2017
+++ src/sys/dev/fdt/fdtbus.c	Wed Apr 26 01:51:52 2017
@@ -1,4 +1,4 @@
-/* $NetBSD: fdtbus.c,v 1.8 2017/04/16 12:24:57 jmcneill Exp $ */
+/* $NetBSD: fdtbus.c,v 1.9 2017/04/26 01:51:52 jmcneill Exp $ */
 
 /*-
  * Copyright (c) 2015 Jared D. McNeill <jmcne...@invisible.ca>
@@ -27,7 +27,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: fdtbus.c,v 1.8 2017/04/16 12:24:57 jmcneill Exp $");
+__KERNEL_RCSID(0, "$NetBSD: fdtbus.c,v 1.9 2017/04/26 01:51:52 jmcneill Exp $");
 
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -40,6 +40,8 @@ __KERNEL_RCSID(0, "$NetBSD: fdtbus.c,v 1
 
 #include <dev/fdt/fdtvar.h>
 
+#include "locators.h"
+
 #define	FDT_MAX_PATH	256
 
 struct fdt_node {
@@ -64,8 +66,9 @@ struct fdt_softc {
 
 static int	fdt_match(device_t, cfdata_t, void *);
 static void	fdt_attach(device_t, device_t, void *);
+static int	fdt_scan_submatch(device_t, cfdata_t, const int *, void *);
 static void	fdt_scan_bus(struct fdt_softc *);
-static void	fdt_scan(struct fdt_softc *);
+static void	fdt_scan(struct fdt_softc *, int);
 static void	fdt_add_node(struct fdt_node *);
 static u_int	fdt_get_order(int);
 
@@ -159,17 +162,31 @@ fdt_attach(device_t parent, device_t sel
 	if (OF_finddevice("/") != faa->faa_phandle)
 		return;
 
+	aprint_debug_dev(sc->sc_dev, "  order   phandle   bus    path\n");
+	aprint_debug_dev(sc->sc_dev, "  =====   =======   ===    ====\n");
+	TAILQ_FOREACH(node, &fdt_nodes, n_nodes) {
+		char buf[FDT_MAX_PATH];
+		const char *path = buf;
+		if (!fdtbus_get_path(node->n_phandle, buf, sizeof(buf)))
+			path = node->n_name;
+		aprint_debug_dev(sc->sc_dev, "   %04x   0x%04x    %s   %s\n",
+		    node->n_order & 0xffff, node->n_phandle,
+		    device_xname(node->n_bus), path);
+	}
+
 	/* Scan devices */
-	fdt_scan(sc);
+	for (int pass = 1; pass <= FDTCF_PASS_DEFAULT; pass++)
+		fdt_scan(sc, pass);
 }
 
 static void
 fdt_init_attach_args(struct fdt_softc *sc, struct fdt_node *node,
-    struct fdt_attach_args *faa)
+    bool quiet, struct fdt_attach_args *faa)
 {
 	*faa = sc->sc_faa;
 	faa->faa_phandle = node->n_phandle;
 	faa->faa_name = node->n_name;
+	faa->faa_quiet = quiet;
 }
 
 static void
@@ -185,7 +202,7 @@ fdt_scan_bus(struct fdt_softc *sc)
 		if (node->n_dev != NULL)
 			continue;
 
-		fdt_init_attach_args(sc, node, &faa);
+		fdt_init_attach_args(sc, node, true, &faa);
 
 		/*
 		 * Only attach busses to nodes where this driver is the best
@@ -202,22 +219,37 @@ fdt_scan_bus(struct fdt_softc *sc)
 	}
 }
 
+static int
+fdt_scan_submatch(device_t parent, cfdata_t cf, const int *locs, void *aux)
+{
+	if (locs[FDTCF_PASS] != FDTCF_PASS_DEFAULT &&
+	    locs[FDTCF_PASS] != cf->cf_loc[FDTCF_PASS])
+		return 0;
+
+	return config_stdsubmatch(parent, cf, locs, aux);
+}
+
 static void
-fdt_scan(struct fdt_softc *sc)
+fdt_scan(struct fdt_softc *sc, int pass)
 {
 	struct fdt_node *node;
 	struct fdt_attach_args faa;
+	const int locs[FDTCF_NLOCS] = {
+		[FDTCF_PASS] = pass
+	};
+	bool quiet = pass != FDTCF_PASS_DEFAULT;
 
 	TAILQ_FOREACH(node, &fdt_nodes, n_nodes) {
 		if (node->n_dev != NULL)
 			continue;
 
-		fdt_init_attach_args(sc, node, &faa);
+		fdt_init_attach_args(sc, node, quiet, &faa);
 
 		/*
 		 * Attach the device.
 		 */
-		node->n_dev = config_found(node->n_bus, &faa, fdt_print);
+		node->n_dev = config_found_sm_loc(node->n_bus, "fdt", locs,
+		    &faa, fdt_print, fdt_scan_submatch);
 	}
 }
 
@@ -258,6 +290,9 @@ fdt_print(void *aux, const char *pnp)
 	char buf[FDT_MAX_PATH];
 	const char *name = buf;
 
+	if (faa->faa_quiet)
+		return QUIET;
+
 	/* Skip "not configured" for nodes w/o compatible property */
 	if (OF_getproplen(faa->faa_phandle, "compatible") <= 0)
 		return QUIET;

Index: src/sys/dev/fdt/fdtvar.h
diff -u src/sys/dev/fdt/fdtvar.h:1.12 src/sys/dev/fdt/fdtvar.h:1.13
--- src/sys/dev/fdt/fdtvar.h:1.12	Sat Apr 22 21:47:41 2017
+++ src/sys/dev/fdt/fdtvar.h	Wed Apr 26 01:51:52 2017
@@ -1,4 +1,4 @@
-/* $NetBSD: fdtvar.h,v 1.12 2017/04/22 21:47:41 jmcneill Exp $ */
+/* $NetBSD: fdtvar.h,v 1.13 2017/04/26 01:51:52 jmcneill Exp $ */
 
 /*-
  * Copyright (c) 2015 Jared D. McNeill <jmcne...@invisible.ca>
@@ -45,6 +45,7 @@ struct fdt_attach_args {
 	bus_space_tag_t faa_a4x_bst;
 	bus_dma_tag_t faa_dmat;
 	int faa_phandle;
+	int faa_quiet;
 };
 
 /* flags for fdtbus_intr_establish */

Index: src/sys/dev/fdt/files.fdt
diff -u src/sys/dev/fdt/files.fdt:1.10 src/sys/dev/fdt/files.fdt:1.11
--- src/sys/dev/fdt/files.fdt:1.10	Sat Apr 22 13:24:20 2017
+++ src/sys/dev/fdt/files.fdt	Wed Apr 26 01:51:52 2017
@@ -1,4 +1,4 @@
-# $NetBSD: files.fdt,v 1.10 2017/04/22 13:24:20 jmcneill Exp $
+# $NetBSD: files.fdt,v 1.11 2017/04/26 01:51:52 jmcneill Exp $
 
 include	"external/bsd/libfdt/conf/files.libfdt"
 
@@ -6,7 +6,7 @@ defflag	opt_fdt.h				FDT: libfdt, ofw_su
 
 define	fdtbus { } : clk
 
-device	fdt { } : fdtbus
+device	fdt { [pass = 10] } : fdtbus
 attach	fdt at fdtbus
 file	dev/fdt/fdtbus.c			fdt
 

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