示例#1
0
static int stm32mp1_ddr_probe(struct udevice *dev)
{
	struct ddr_info *priv = dev_get_priv(dev);
	struct regmap *map;
	int ret;

	debug("STM32MP1 DDR probe\n");
	priv->dev = dev;

	ret = regmap_init_mem(dev_ofnode(dev), &map);
	if (ret)
		return ret;

	priv->ctl = regmap_get_range(map, 0);
	priv->phy = regmap_get_range(map, 1);

	priv->rcc = STM32_RCC_BASE;

	priv->info.base = STM32_DDR_BASE;

#if !defined(CONFIG_STM32MP1_TRUSTED) && \
	(!defined(CONFIG_SPL) || defined(CONFIG_SPL_BUILD))
	priv->info.size = 0;
	return stm32mp1_ddr_setup(dev);
#else
	priv->info.size = dev_read_u32_default(dev, "st,mem-size", 0);
	return 0;
#endif
}
示例#2
0
/* Base test of register maps */
static int dm_test_regmap_base(struct unit_test_state *uts)
{
	struct udevice *dev;
	struct regmap *map;
	ofnode node;
	int i;

	ut_assertok(uclass_get_device(UCLASS_SYSCON, 0, &dev));
	map = syscon_get_regmap(dev);
	ut_assertok_ptr(map);
	ut_asserteq(1, map->range_count);
	ut_asserteq(0x10, map->ranges[0].start);
	ut_asserteq(4, map->ranges[0].size);
	ut_asserteq(0x10, map_to_sysmem(regmap_get_range(map, 0)));

	ut_assertok(uclass_get_device(UCLASS_SYSCON, 1, &dev));
	map = syscon_get_regmap(dev);
	ut_assertok_ptr(map);
	ut_asserteq(4, map->range_count);
	ut_asserteq(0x20, map->ranges[0].start);
	for (i = 0; i < 4; i++) {
		const unsigned long addr = 0x20 + 8 * i;

		ut_asserteq(addr, map->ranges[i].start);
		ut_asserteq(5 + i, map->ranges[i].size);
		ut_asserteq(addr, map_to_sysmem(regmap_get_range(map, i)));
	}

	/* Check that we can't pretend a different device is a syscon */
	ut_assertok(uclass_get_device(UCLASS_I2C, 0, &dev));
	map = syscon_get_regmap(dev);
	ut_asserteq_ptr(ERR_PTR(-ENOEXEC), map);

	/* A different device can be a syscon by using Linux-compat API */
	node = ofnode_path("/syscon@2");
	ut_assert(ofnode_valid(node));

	map = syscon_node_to_regmap(node);
	ut_assertok_ptr(map);
	ut_asserteq(4, map->range_count);
	ut_asserteq(0x40, map->ranges[0].start);
	for (i = 0; i < 4; i++) {
		const unsigned long addr = 0x40 + 8 * i;

		ut_asserteq(addr, map->ranges[i].start);
		ut_asserteq(5 + i, map->ranges[i].size);
		ut_asserteq(addr, map_to_sysmem(regmap_get_range(map, i)));
	}

	return 0;
}
示例#3
0
void *syscon_get_first_range(ulong driver_data)
{
	struct regmap *map;

	map = syscon_get_regmap_by_driver_data(driver_data);
	if (IS_ERR(map))
		return map;
	return regmap_get_range(map, 0);
}
示例#4
0
/* Base test of register maps */
static int dm_test_regmap_base(struct unit_test_state *uts)
{
	struct udevice *dev;
	struct regmap *map;
	int i;

	ut_assertok(uclass_get_device(UCLASS_SYSCON, 0, &dev));
	map = syscon_get_regmap(dev);
	ut_assertok_ptr(map);
	ut_asserteq(1, map->range_count);
	ut_asserteq(0x10, map->base);
	ut_asserteq(0x10, map->range->start);
	ut_asserteq(4, map->range->size);
	ut_asserteq_ptr(&map->base_range, map->range);
	ut_asserteq(0x10, map_to_sysmem(regmap_get_range(map, 0)));

	ut_assertok(uclass_get_device(UCLASS_SYSCON, 1, &dev));
	map = syscon_get_regmap(dev);
	ut_assertok_ptr(map);
	ut_asserteq(4, map->range_count);
	ut_asserteq(0x20, map->base);
	ut_assert(&map->base_range != map->range);
	for (i = 0; i < 4; i++) {
		const unsigned long addr = 0x20 + 8 * i;

		ut_asserteq(addr, map->range[i].start);
		ut_asserteq(5 + i, map->range[i].size);
		ut_asserteq(addr, map_to_sysmem(regmap_get_range(map, i)));
	}

	/* Check that we can't pretend a different device is a syscon */
	ut_assertok(uclass_get_device(UCLASS_I2C, 0, &dev));
	map = syscon_get_regmap(dev);
	ut_asserteq_ptr(ERR_PTR(-ENOEXEC), map);

	return 0;
}
示例#5
0
文件: ti_qspi.c 项目: Noltari/u-boot
static void *map_syscon_chipselects(struct udevice *bus)
{
#if CONFIG_IS_ENABLED(SYSCON)
	struct udevice *syscon;
	struct regmap *regmap;
	const fdt32_t *cell;
	int len, err;

	err = uclass_get_device_by_phandle(UCLASS_SYSCON, bus,
					   "syscon-chipselects", &syscon);
	if (err) {
		debug("%s: unable to find syscon device (%d)\n", __func__,
		      err);
		return NULL;
	}

	regmap = syscon_get_regmap(syscon);
	if (IS_ERR(regmap)) {
		debug("%s: unable to find regmap (%ld)\n", __func__,
		      PTR_ERR(regmap));
		return NULL;
	}

	cell = fdt_getprop(gd->fdt_blob, dev_of_offset(bus),
			   "syscon-chipselects", &len);
	if (len < 2*sizeof(fdt32_t)) {
		debug("%s: offset not available\n", __func__);
		return NULL;
	}

	return fdtdec_get_number(cell + 1, 1) + regmap_get_range(regmap, 0);
#else
	fdt_addr_t addr;
	addr = devfdt_get_addr_index(bus, 2);
	return (addr == FDT_ADDR_T_NONE) ? NULL :
		map_physmem(addr, 0, MAP_NOCACHE);
#endif
}
static void *get_reg(struct udevice *dev, const char *name)
{
	struct udevice *syscon;
	struct regmap *regmap;
	const fdt32_t *cell;
	int len, err;
	void *base;

	err = uclass_get_device_by_phandle(UCLASS_SYSCON, dev,
					   name, &syscon);
	if (err) {
		pr_err("unable to find syscon device for %s (%d)\n",
		      name, err);
		return NULL;
	}

	regmap = syscon_get_regmap(syscon);
	if (IS_ERR(regmap)) {
		pr_err("unable to find regmap for %s (%ld)\n",
		      name, PTR_ERR(regmap));
		return NULL;
	}

	cell = fdt_getprop(gd->fdt_blob, dev_of_offset(dev), name,
			   &len);
	if (len < 2*sizeof(fdt32_t)) {
		pr_err("offset not available for %s\n", name);
		return NULL;
	}

	base = regmap_get_range(regmap, 0);
	if (!base)
		return NULL;

	return fdtdec_get_number(cell + 1, 1) + base;
}