mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-14 00:47:26 +00:00
0914011310
We should not use typedefs in U-Boot. They cannot be used as forward declarations which means that header files must include the full header to access them. Drop the typedef and rename the struct to remove the _s suffix which is now not useful. This requires quite a few header-file additions. Signed-off-by: Simon Glass <sjg@chromium.org>
351 lines
8.5 KiB
C
351 lines
8.5 KiB
C
// 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.
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <command.h>
|
|
#include <fdtdec.h>
|
|
#include <linux/libfdt.h>
|
|
#include <malloc.h>
|
|
#include <os.h>
|
|
|
|
/* The size of our test fdt blob */
|
|
#define FDT_SIZE (16 * 1024)
|
|
|
|
#define CHECK(op) ({ \
|
|
int err = op; \
|
|
if (err < 0) { \
|
|
printf("%s: %s: %s\n", __func__, #op, \
|
|
fdt_strerror(err)); \
|
|
return err; \
|
|
} \
|
|
\
|
|
err; \
|
|
})
|
|
|
|
#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 CHECKOK(op) CHECKVAL(op, 0)
|
|
|
|
/* maximum number of nodes / aliases to generate */
|
|
#define MAX_NODES 20
|
|
|
|
/*
|
|
* Make a test fdt
|
|
*
|
|
* @param fdt Device tree pointer
|
|
* @param size Size of device tree blob
|
|
* @param aliases Specifies alias assignments. Format is a list of items
|
|
* separated by space. Items are #a where
|
|
* # is the alias number
|
|
* a is the node to point to
|
|
* @param nodes Specifies nodes to generate (a=0, b=1), upper case
|
|
* means to create a disabled node
|
|
*/
|
|
static int make_fdt(void *fdt, int size, const char *aliases,
|
|
const char *nodes)
|
|
{
|
|
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));
|
|
CHECK(fdt_begin_node(fdt, ""));
|
|
|
|
CHECK(fdt_begin_node(fdt, "aliases"));
|
|
for (s = aliases; *s;) {
|
|
sprintf(name, "i2c%c", *s);
|
|
sprintf(value, "/i2c%d@0", s[1] - 'a');
|
|
CHECK(fdt_property_string(fdt, name, value));
|
|
s += 2 + (s[2] != '\0');
|
|
}
|
|
CHECK(fdt_end_node(fdt));
|
|
|
|
for (s = nodes; *s; s++) {
|
|
sprintf(value, "i2c%d@0", (*s & 0xdf) - 'A');
|
|
CHECK(fdt_begin_node(fdt, value));
|
|
CHECK(fdt_property_string(fdt, "compatible",
|
|
fdtdec_get_compatible(COMPAT_UNKNOWN)));
|
|
if (*s <= 'Z')
|
|
CHECK(fdt_property_string(fdt, "status", "disabled"));
|
|
CHECK(fdt_end_node(fdt));
|
|
}
|
|
|
|
CHECK(fdt_end_node(fdt));
|
|
CHECK(fdt_finish(fdt));
|
|
CHECK(fdt_pack(fdt));
|
|
#if defined(DEBUG) && defined(CONFIG_SANDBOX)
|
|
fd = os_open("/tmp/fdtdec-text.dtb", OS_O_CREAT | OS_O_WRONLY);
|
|
if (fd == -1) {
|
|
printf("Could not open .dtb file to write\n");
|
|
return -1;
|
|
}
|
|
os_write(fd, fdt, size);
|
|
os_close(fd);
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
static int run_test(const char *aliases, const char *nodes, const char *expect)
|
|
{
|
|
int list[MAX_NODES];
|
|
const char *s;
|
|
void *blob;
|
|
int i;
|
|
|
|
blob = malloc(FDT_SIZE);
|
|
if (!blob) {
|
|
printf("%s: out of memory\n", __func__);
|
|
return 1;
|
|
}
|
|
|
|
printf("aliases=%s, nodes=%s, expect=%s: ", aliases, nodes, expect);
|
|
CHECKVAL(make_fdt(blob, FDT_SIZE, aliases, nodes), 0);
|
|
CHECKVAL(fdtdec_find_aliases_for_id(blob, "i2c",
|
|
COMPAT_UNKNOWN,
|
|
list, ARRAY_SIZE(list)), (int)strlen(expect));
|
|
|
|
/* Check we got the right ones */
|
|
for (i = 0, s = expect; *s; s++, i++) {
|
|
int want = *s;
|
|
const char *name;
|
|
int got = ' ';
|
|
|
|
name = list[i] ? fdt_get_name(blob, list[i], NULL) : NULL;
|
|
if (name)
|
|
got = name[3] + 'a' - '0';
|
|
|
|
if (got != want) {
|
|
printf("Position %d: Expected '%c', got '%c' ('%s')\n",
|
|
i, want, got, name);
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
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(struct cmd_tbl *cmdtp, int flag, int argc,
|
|
char *const argv[])
|
|
{
|
|
/* basic tests */
|
|
CHECKOK(run_test("", "", ""));
|
|
CHECKOK(run_test("1e 3d", "", ""));
|
|
|
|
/*
|
|
* 'a' represents 0, 'b' represents 1, etc.
|
|
* The first character is the alias number, the second is the node
|
|
* number. So the params mean:
|
|
* 0a 1b : point alias 0 to node 0 (a), alias 1 to node 1(b)
|
|
* ab : to create nodes 0 and 1 (a and b)
|
|
* ab : we expect the function to return two nodes, in
|
|
* the order 0, 1
|
|
*/
|
|
CHECKOK(run_test("0a 1b", "ab", "ab"));
|
|
|
|
CHECKOK(run_test("0a 1c", "ab", "ab"));
|
|
CHECKOK(run_test("1c", "ab", "ab"));
|
|
CHECKOK(run_test("1b", "ab", "ab"));
|
|
CHECKOK(run_test("0b", "ab", "ba"));
|
|
CHECKOK(run_test("0b 2d", "dbc", "bcd"));
|
|
CHECKOK(run_test("0d 3a 1c 2b", "dbac", "dcba"));
|
|
|
|
/* things with holes */
|
|
CHECKOK(run_test("1b 3d", "dbc", "cb d"));
|
|
CHECKOK(run_test("1e 3d", "dbc", "bc d"));
|
|
|
|
/* no aliases */
|
|
CHECKOK(run_test("", "dbac", "dbac"));
|
|
|
|
/* disabled nodes */
|
|
CHECKOK(run_test("0d 3a 1c 2b", "dBac", "dc a"));
|
|
CHECKOK(run_test("0b 2d", "DBc", "c"));
|
|
CHECKOK(run_test("0b 4d 2c", "DBc", " c"));
|
|
|
|
/* conflicting aliases - first one gets it */
|
|
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;
|
|
}
|
|
|
|
U_BOOT_CMD(
|
|
test_fdtdec, 3, 1, do_test_fdtdec,
|
|
"test_fdtdec",
|
|
"Run tests for fdtdec library");
|