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https://github.com/AsahiLinux/u-boot
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99552c3435
Like Linux, syscon_node_to_regmap() allows a node to work as a syscon provider without binding it to a syscon driver. Test this. Requested-by: Simon Glass <sjg@chromium.org> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Simon Glass <sjg@chromium.org>
93 lines
2.6 KiB
C
93 lines
2.6 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2015 Google, Inc
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*/
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#include <common.h>
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#include <dm.h>
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#include <mapmem.h>
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#include <regmap.h>
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#include <syscon.h>
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#include <asm/test.h>
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#include <dm/test.h>
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#include <test/ut.h>
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/* Base test of register maps */
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static int dm_test_regmap_base(struct unit_test_state *uts)
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{
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struct udevice *dev;
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struct regmap *map;
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ofnode node;
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int i;
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ut_assertok(uclass_get_device(UCLASS_SYSCON, 0, &dev));
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map = syscon_get_regmap(dev);
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ut_assertok_ptr(map);
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ut_asserteq(1, map->range_count);
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ut_asserteq(0x10, map->ranges[0].start);
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ut_asserteq(4, map->ranges[0].size);
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ut_asserteq(0x10, map_to_sysmem(regmap_get_range(map, 0)));
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ut_assertok(uclass_get_device(UCLASS_SYSCON, 1, &dev));
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map = syscon_get_regmap(dev);
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ut_assertok_ptr(map);
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ut_asserteq(4, map->range_count);
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ut_asserteq(0x20, map->ranges[0].start);
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for (i = 0; i < 4; i++) {
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const unsigned long addr = 0x20 + 8 * i;
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ut_asserteq(addr, map->ranges[i].start);
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ut_asserteq(5 + i, map->ranges[i].size);
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ut_asserteq(addr, map_to_sysmem(regmap_get_range(map, i)));
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}
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/* Check that we can't pretend a different device is a syscon */
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ut_assertok(uclass_get_device(UCLASS_I2C, 0, &dev));
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map = syscon_get_regmap(dev);
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ut_asserteq_ptr(ERR_PTR(-ENOEXEC), map);
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/* A different device can be a syscon by using Linux-compat API */
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node = ofnode_path("/syscon@2");
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ut_assert(ofnode_valid(node));
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map = syscon_node_to_regmap(node);
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ut_assertok_ptr(map);
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ut_asserteq(4, map->range_count);
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ut_asserteq(0x40, map->ranges[0].start);
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for (i = 0; i < 4; i++) {
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const unsigned long addr = 0x40 + 8 * i;
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ut_asserteq(addr, map->ranges[i].start);
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ut_asserteq(5 + i, map->ranges[i].size);
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ut_asserteq(addr, map_to_sysmem(regmap_get_range(map, i)));
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}
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return 0;
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}
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DM_TEST(dm_test_regmap_base, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
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/* Test we can access a regmap through syscon */
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static int dm_test_regmap_syscon(struct unit_test_state *uts)
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{
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struct regmap *map;
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map = syscon_get_regmap_by_driver_data(SYSCON0);
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ut_assertok_ptr(map);
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ut_asserteq(1, map->range_count);
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map = syscon_get_regmap_by_driver_data(SYSCON1);
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ut_assertok_ptr(map);
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ut_asserteq(4, map->range_count);
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map = syscon_get_regmap_by_driver_data(SYSCON_COUNT);
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ut_asserteq_ptr(ERR_PTR(-ENODEV), map);
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ut_asserteq(0x10, map_to_sysmem(syscon_get_first_range(SYSCON0)));
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ut_asserteq(0x20, map_to_sysmem(syscon_get_first_range(SYSCON1)));
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ut_asserteq_ptr(ERR_PTR(-ENODEV),
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syscon_get_first_range(SYSCON_COUNT));
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return 0;
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}
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DM_TEST(dm_test_regmap_syscon, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
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