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This patch adds a testcase for dtc's reference-to-phandle functionality. Signed-off-by: David Gibson <david@gibson.dropbear.id.au>main
David Gibson
17 years ago
committed by
Jon Loeliger
3 changed files with 125 additions and 1 deletions
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/* |
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* libfdt - Flat Device Tree manipulation |
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* Testcase for phandle references in dtc |
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* Copyright (C) 2006 David Gibson, IBM Corporation. |
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* |
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* This library is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public License |
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* as published by the Free Software Foundation; either version 2.1 of |
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* the License, or (at your option) any later version. |
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* |
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* This library is distributed in the hope that it will be useful, but |
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* WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with this library; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#include <stdlib.h> |
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#include <stdio.h> |
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#include <string.h> |
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#include <stdint.h> |
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#include <fdt.h> |
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#include <libfdt.h> |
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#include "tests.h" |
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#include "testdata.h" |
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void check_ref(const void *fdt, int node, uint32_t checkref) |
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{ |
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const uint32_t *p; |
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uint32_t ref; |
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int len; |
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p = fdt_getprop(fdt, node, "ref", &len); |
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if (!p) |
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FAIL("fdt_getprop(%d, \"ref\"): %s", node, fdt_strerror(len)); |
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if (len != sizeof(*p)) |
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FAIL("'ref' in node at %d has wrong size (%d instead of %d)", |
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node, len, sizeof(*p)); |
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ref = fdt32_to_cpu(*p); |
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if (ref != checkref) |
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FAIL("'ref' in node at %d has value 0x%x instead of 0x%x", |
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node, ref, checkref); |
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p = fdt_getprop(fdt, node, "lref", &len); |
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if (!p) |
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FAIL("fdt_getprop(%d, \"lref\"): %s", node, fdt_strerror(len)); |
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if (len != sizeof(*p)) |
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FAIL("'lref' in node at %d has wrong size (%d instead of %d)", |
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node, len, sizeof(*p)); |
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ref = fdt32_to_cpu(*p); |
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if (ref != checkref) |
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FAIL("'lref' in node at %d has value 0x%x instead of 0x%x", |
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node, ref, checkref); |
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} |
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int main(int argc, char *argv[]) |
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{ |
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void *fdt; |
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int n1, n2, n3, n4; |
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uint32_t h1, h2, h4; |
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test_init(argc, argv); |
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fdt = load_blob_arg(argc, argv); |
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n1 = fdt_path_offset(fdt, "/node1"); |
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if (n1 < 0) |
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FAIL("fdt_path_offset(/node1): %s", fdt_strerror(n1)); |
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n2 = fdt_path_offset(fdt, "/node2"); |
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if (n2 < 0) |
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FAIL("fdt_path_offset(/node2): %s", fdt_strerror(n2)); |
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n3 = fdt_path_offset(fdt, "/node3"); |
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if (n3 < 0) |
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FAIL("fdt_path_offset(/node3): %s", fdt_strerror(n3)); |
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n4 = fdt_path_offset(fdt, "/node4"); |
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if (n4 < 0) |
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FAIL("fdt_path_offset(/node4): %s", fdt_strerror(n4)); |
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h1 = fdt_get_phandle(fdt, n1); |
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h2 = fdt_get_phandle(fdt, n2); |
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h4 = fdt_get_phandle(fdt, n4); |
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if (h1 != 0x2000) |
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FAIL("/node1 has wrong phandle, 0x%x instead of 0x%x", |
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h1, 0x2000); |
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if (h2 != 0x1) |
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FAIL("/node2 has wrong phandle, 0x%x instead of 0x%x", |
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h2, 0x1); |
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if ((h4 == 0x2000) || (h4 == 0x1) || (h4 == 0)) |
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FAIL("/node4 has bad phandle, 0x%x", h4); |
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check_ref(fdt, n1, h2); |
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check_ref(fdt, n2, h1); |
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check_ref(fdt, n3, h4); |
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PASS(); |
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} |
@ -0,0 +1,23 @@ |
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/dts-v1/; |
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/ { |
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/* Explicit phandles */ |
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n1: node1 { |
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linux,phandle = <0x2000>; |
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ref = <&/node2>; /* reference precedes target */ |
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lref = <&n2>; |
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}; |
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n2: node2 { |
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linux,phandle = <0x1>; |
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ref = <&/node1>; /* reference after target */ |
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lref = <&n1>; |
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}; |
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/* Implicit phandles */ |
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n3: node3 { |
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ref = <&/node4>; |
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lref = <&n4>; |
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}; |
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n4: node4 { |
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}; |
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}; |
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