+// SPDX-License-Identifier: GPL-2.0+
/*
* Some very basic tests for fdtdec, accessed through test_fdtdec command.
* They are easiest to use with sandbox.
*
* Copyright (c) 2011 The Chromium OS Authors.
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
*/
#include <common.h>
+#include <command.h>
#include <fdtdec.h>
-#include <libfdt.h>
+#include <linux/libfdt.h>
#include <malloc.h>
#include <os.h>
/* The size of our test fdt blob */
#define FDT_SIZE (16 * 1024)
-/**
- * Check if an operation failed, and if so, print an error
- *
- * @param oper_name Name of operation
- * @param err Error code to check
- *
- * @return 0 if ok, -1 if there was an error
- */
-static int fdt_checkerr(const char *oper_name, int err)
-{
- if (err) {
- printf("%s: %s: %s\n", __func__, oper_name, fdt_strerror(err));
- return -1;
- }
+#define CHECK(op) ({ \
+ int err = op; \
+ if (err < 0) { \
+ printf("%s: %s: %s\n", __func__, #op, \
+ fdt_strerror(err)); \
+ return err; \
+ } \
+ \
+ err; \
+ })
- return 0;
-}
-
-/**
- * Check the result of an operation and if incorrect, print an error
- *
- * @param oper_name Name of operation
- * @param expected Expected value
- * @param value Actual value
- *
- * @return 0 if ok, -1 if there was an error
- */
-static int checkval(const char *oper_name, int expected, int value)
-{
- if (expected != value) {
- printf("%s: %s: expected %d, but returned %d\n", __func__,
- oper_name, expected, value);
- return -1;
- }
-
- return 0;
-}
+#define CHECKVAL(op, expected) ({ \
+ int err = op; \
+ if (err != expected) { \
+ printf("%s: %s: expected %d, but returned %d\n",\
+ __func__, #op, expected, err); \
+ return err; \
+ } \
+ \
+ err; \
+ })
-#define CHECK(op) if (fdt_checkerr(#op, op)) return -1
-#define CHECKVAL(op, expected) \
- if (checkval(#op, expected, op)) \
- return -1
#define CHECKOK(op) CHECKVAL(op, 0)
/* maximum number of nodes / aliases to generate */
{
char name[20], value[20];
const char *s;
+#if defined(DEBUG) && defined(CONFIG_SANDBOX)
int fd;
+#endif
CHECK(fdt_create(fdt, size));
CHECK(fdt_finish_reservemap(fdt));
CHECKVAL(make_fdt(blob, FDT_SIZE, aliases, nodes), 0);
CHECKVAL(fdtdec_find_aliases_for_id(blob, "i2c",
COMPAT_UNKNOWN,
- list, ARRAY_SIZE(list)), strlen(expect));
+ list, ARRAY_SIZE(list)), (int)strlen(expect));
/* Check we got the right ones */
for (i = 0, s = expect; *s; s++, i++) {
}
printf("pass\n");
+ free(blob);
+ return 0;
+}
+
+static int make_fdt_carveout_device(void *fdt, uint32_t na, uint32_t ns)
+{
+ const char *basename = "/display";
+ struct fdt_memory carveout = {
+#ifdef CONFIG_PHYS_64BIT
+ .start = 0x180000000,
+ .end = 0x18fffffff,
+#else
+ .start = 0x80000000,
+ .end = 0x8fffffff,
+#endif
+ };
+ fdt32_t cells[4], *ptr = cells;
+ uint32_t upper, lower;
+ fdt_size_t size;
+ char name[32];
+ int offset;
+
+ /* store one or two address cells */
+ upper = upper_32_bits(carveout.start);
+ lower = lower_32_bits(carveout.start);
+
+ if (na > 1 && upper > 0)
+ snprintf(name, sizeof(name), "%s@%x,%x", basename, upper,
+ lower);
+ else
+ snprintf(name, sizeof(name), "%s@%x", basename, lower);
+
+ if (na > 1)
+ *ptr++ = cpu_to_fdt32(upper);
+
+ *ptr++ = cpu_to_fdt32(lower);
+
+ /* store one or two size cells */
+ size = carveout.end - carveout.start + 1;
+ upper = upper_32_bits(size);
+ lower = lower_32_bits(size);
+
+ if (ns > 1)
+ *ptr++ = cpu_to_fdt32(upper);
+
+ *ptr++ = cpu_to_fdt32(lower);
+
+ offset = CHECK(fdt_add_subnode(fdt, 0, name + 1));
+ CHECK(fdt_setprop(fdt, offset, "reg", cells, (na + ns) * sizeof(*cells)));
+
+ return fdtdec_set_carveout(fdt, name, "memory-region", 0,
+ "framebuffer", &carveout);
+}
+
+static int check_fdt_carveout(void *fdt, uint32_t address_cells,
+ uint32_t size_cells)
+{
+#ifdef CONFIG_PHYS_64BIT
+ const char *name = "/display@1,80000000";
+ const struct fdt_memory expected = {
+ .start = 0x180000000,
+ .end = 0x18fffffff,
+ };
+#else
+ const char *name = "/display@80000000";
+ const struct fdt_memory expected = {
+ .start = 0x80000000,
+ .end = 0x8fffffff,
+ };
+#endif
+ struct fdt_memory carveout;
+
+ printf("carveout: %pap-%pap na=%u ns=%u: ", &expected.start,
+ &expected.end, address_cells, size_cells);
+
+ CHECK(fdtdec_get_carveout(fdt, name, "memory-region", 0, &carveout));
+
+ if ((carveout.start != expected.start) ||
+ (carveout.end != expected.end)) {
+ printf("carveout: %pap-%pap, expected %pap-%pap\n",
+ &carveout.start, &carveout.end,
+ &expected.start, &expected.end);
+ return 1;
+ }
+
+ printf("pass\n");
+ return 0;
+}
+
+static int make_fdt_carveout(void *fdt, int size, uint32_t address_cells,
+ uint32_t size_cells)
+{
+ fdt32_t na = cpu_to_fdt32(address_cells);
+ fdt32_t ns = cpu_to_fdt32(size_cells);
+#if defined(DEBUG) && defined(CONFIG_SANDBOX)
+ char filename[512];
+ int fd;
+#endif
+ int err;
+
+ CHECK(fdt_create(fdt, size));
+ CHECK(fdt_finish_reservemap(fdt));
+ CHECK(fdt_begin_node(fdt, ""));
+ CHECK(fdt_property(fdt, "#address-cells", &na, sizeof(na)));
+ CHECK(fdt_property(fdt, "#size-cells", &ns, sizeof(ns)));
+ CHECK(fdt_end_node(fdt));
+ CHECK(fdt_finish(fdt));
+ CHECK(fdt_pack(fdt));
+
+ CHECK(fdt_open_into(fdt, fdt, FDT_SIZE));
+
+ err = make_fdt_carveout_device(fdt, address_cells, size_cells);
+
+#if defined(DEBUG) && defined(CONFIG_SANDBOX)
+ snprintf(filename, sizeof(filename), "/tmp/fdtdec-carveout-%u-%u.dtb",
+ address_cells, size_cells);
+
+ fd = os_open(filename, OS_O_CREAT | OS_O_WRONLY);
+ if (fd < 0) {
+ printf("could not open .dtb file to write\n");
+ goto out;
+ }
+
+ os_write(fd, fdt, size);
+ os_close(fd);
+
+out:
+#endif
+ return err;
+}
+
+static int check_carveout(void)
+{
+ void *fdt;
+
+ fdt = malloc(FDT_SIZE);
+ if (!fdt) {
+ printf("%s: out of memory\n", __func__);
+ return 1;
+ }
+
+#ifndef CONFIG_PHYS_64BIT
+ CHECKVAL(make_fdt_carveout(fdt, FDT_SIZE, 1, 1), 0);
+ CHECKOK(check_fdt_carveout(fdt, 1, 1));
+ CHECKVAL(make_fdt_carveout(fdt, FDT_SIZE, 1, 2), 0);
+ CHECKOK(check_fdt_carveout(fdt, 1, 2));
+#else
+ CHECKVAL(make_fdt_carveout(fdt, FDT_SIZE, 1, 1), -FDT_ERR_BADVALUE);
+ CHECKVAL(make_fdt_carveout(fdt, FDT_SIZE, 1, 2), -FDT_ERR_BADVALUE);
+#endif
+ CHECKVAL(make_fdt_carveout(fdt, FDT_SIZE, 2, 1), 0);
+ CHECKOK(check_fdt_carveout(fdt, 2, 1));
+ CHECKVAL(make_fdt_carveout(fdt, FDT_SIZE, 2, 2), 0);
+ CHECKOK(check_fdt_carveout(fdt, 2, 2));
+
+ free(fdt);
return 0;
}
-static int do_test_fdtdec(cmd_tbl_t *cmdtp, int flag, int argc,
- char * const argv[])
+static int do_test_fdtdec(struct cmd_tbl *cmdtp, int flag, int argc,
+ char *const argv[])
{
/* basic tests */
CHECKOK(run_test("", "", ""));
CHECKOK(run_test("2a 1a 0a", "a", " a"));
CHECKOK(run_test("0a 1a 2a", "a", "a"));
+ CHECKOK(check_carveout());
+
printf("Test passed\n");
return 0;
}
projects / oweals / u-boot.git / blobdiff