18c2ecf20Sopenharmony_ci// SPDX-License-Identifier: GPL-2.0-or-later
28c2ecf20Sopenharmony_ci/*
38c2ecf20Sopenharmony_ci * Copyright (C) 2016 Socionext Inc.
48c2ecf20Sopenharmony_ci *   Author: Masahiro Yamada <yamada.masahiro@socionext.com>
58c2ecf20Sopenharmony_ci */
68c2ecf20Sopenharmony_ci
78c2ecf20Sopenharmony_ci#include <linux/mfd/syscon.h>
88c2ecf20Sopenharmony_ci#include <linux/module.h>
98c2ecf20Sopenharmony_ci#include <linux/of.h>
108c2ecf20Sopenharmony_ci#include <linux/of_device.h>
118c2ecf20Sopenharmony_ci#include <linux/platform_device.h>
128c2ecf20Sopenharmony_ci#include <linux/regmap.h>
138c2ecf20Sopenharmony_ci#include <linux/reset-controller.h>
148c2ecf20Sopenharmony_ci
158c2ecf20Sopenharmony_cistruct uniphier_reset_data {
168c2ecf20Sopenharmony_ci	unsigned int id;
178c2ecf20Sopenharmony_ci	unsigned int reg;
188c2ecf20Sopenharmony_ci	unsigned int bit;
198c2ecf20Sopenharmony_ci	unsigned int flags;
208c2ecf20Sopenharmony_ci#define UNIPHIER_RESET_ACTIVE_LOW		BIT(0)
218c2ecf20Sopenharmony_ci};
228c2ecf20Sopenharmony_ci
238c2ecf20Sopenharmony_ci#define UNIPHIER_RESET_ID_END		(unsigned int)(-1)
248c2ecf20Sopenharmony_ci
258c2ecf20Sopenharmony_ci#define UNIPHIER_RESET_END				\
268c2ecf20Sopenharmony_ci	{ .id = UNIPHIER_RESET_ID_END }
278c2ecf20Sopenharmony_ci
288c2ecf20Sopenharmony_ci#define UNIPHIER_RESET(_id, _reg, _bit)			\
298c2ecf20Sopenharmony_ci	{						\
308c2ecf20Sopenharmony_ci		.id = (_id),				\
318c2ecf20Sopenharmony_ci		.reg = (_reg),				\
328c2ecf20Sopenharmony_ci		.bit = (_bit),				\
338c2ecf20Sopenharmony_ci	}
348c2ecf20Sopenharmony_ci
358c2ecf20Sopenharmony_ci#define UNIPHIER_RESETX(_id, _reg, _bit)		\
368c2ecf20Sopenharmony_ci	{						\
378c2ecf20Sopenharmony_ci		.id = (_id),				\
388c2ecf20Sopenharmony_ci		.reg = (_reg),				\
398c2ecf20Sopenharmony_ci		.bit = (_bit),				\
408c2ecf20Sopenharmony_ci		.flags = UNIPHIER_RESET_ACTIVE_LOW,	\
418c2ecf20Sopenharmony_ci	}
428c2ecf20Sopenharmony_ci
438c2ecf20Sopenharmony_ci/* System reset data */
448c2ecf20Sopenharmony_cistatic const struct uniphier_reset_data uniphier_ld4_sys_reset_data[] = {
458c2ecf20Sopenharmony_ci	UNIPHIER_RESETX(2, 0x2000, 2),		/* NAND */
468c2ecf20Sopenharmony_ci	UNIPHIER_RESETX(8, 0x2000, 10),		/* STDMAC (Ether, HSC, MIO) */
478c2ecf20Sopenharmony_ci	UNIPHIER_RESET_END,
488c2ecf20Sopenharmony_ci};
498c2ecf20Sopenharmony_ci
508c2ecf20Sopenharmony_cistatic const struct uniphier_reset_data uniphier_pro4_sys_reset_data[] = {
518c2ecf20Sopenharmony_ci	UNIPHIER_RESETX(2, 0x2000, 2),		/* NAND */
528c2ecf20Sopenharmony_ci	UNIPHIER_RESETX(6, 0x2000, 12),		/* Ether */
538c2ecf20Sopenharmony_ci	UNIPHIER_RESETX(8, 0x2000, 10),		/* STDMAC (HSC, MIO, RLE) */
548c2ecf20Sopenharmony_ci	UNIPHIER_RESETX(12, 0x2000, 6),		/* GIO (Ether, SATA, USB3) */
558c2ecf20Sopenharmony_ci	UNIPHIER_RESETX(14, 0x2000, 17),	/* USB30 */
568c2ecf20Sopenharmony_ci	UNIPHIER_RESETX(15, 0x2004, 17),	/* USB31 */
578c2ecf20Sopenharmony_ci	UNIPHIER_RESETX(28, 0x2000, 18),	/* SATA0 */
588c2ecf20Sopenharmony_ci	UNIPHIER_RESETX(29, 0x2004, 18),	/* SATA1 */
598c2ecf20Sopenharmony_ci	UNIPHIER_RESETX(30, 0x2000, 19),	/* SATA-PHY */
608c2ecf20Sopenharmony_ci	UNIPHIER_RESETX(40, 0x2000, 13),	/* AIO */
618c2ecf20Sopenharmony_ci	UNIPHIER_RESET_END,
628c2ecf20Sopenharmony_ci};
638c2ecf20Sopenharmony_ci
648c2ecf20Sopenharmony_cistatic const struct uniphier_reset_data uniphier_pro5_sys_reset_data[] = {
658c2ecf20Sopenharmony_ci	UNIPHIER_RESETX(2, 0x2000, 2),		/* NAND */
668c2ecf20Sopenharmony_ci	UNIPHIER_RESETX(8, 0x2000, 10),		/* STDMAC (HSC) */
678c2ecf20Sopenharmony_ci	UNIPHIER_RESETX(12, 0x2000, 6),		/* GIO (PCIe, USB3) */
688c2ecf20Sopenharmony_ci	UNIPHIER_RESETX(14, 0x2000, 17),	/* USB30 */
698c2ecf20Sopenharmony_ci	UNIPHIER_RESETX(15, 0x2004, 17),	/* USB31 */
708c2ecf20Sopenharmony_ci	UNIPHIER_RESETX(24, 0x2008, 2),		/* PCIe */
718c2ecf20Sopenharmony_ci	UNIPHIER_RESETX(40, 0x2000, 13),	/* AIO */
728c2ecf20Sopenharmony_ci	UNIPHIER_RESET_END,
738c2ecf20Sopenharmony_ci};
748c2ecf20Sopenharmony_ci
758c2ecf20Sopenharmony_cistatic const struct uniphier_reset_data uniphier_pxs2_sys_reset_data[] = {
768c2ecf20Sopenharmony_ci	UNIPHIER_RESETX(2, 0x2000, 2),		/* NAND */
778c2ecf20Sopenharmony_ci	UNIPHIER_RESETX(6, 0x2000, 12),		/* Ether */
788c2ecf20Sopenharmony_ci	UNIPHIER_RESETX(8, 0x2000, 10),		/* STDMAC (HSC, RLE) */
798c2ecf20Sopenharmony_ci	UNIPHIER_RESETX(14, 0x2000, 17),	/* USB30 */
808c2ecf20Sopenharmony_ci	UNIPHIER_RESETX(15, 0x2004, 17),	/* USB31 */
818c2ecf20Sopenharmony_ci	UNIPHIER_RESETX(16, 0x2014, 4),		/* USB30-PHY0 */
828c2ecf20Sopenharmony_ci	UNIPHIER_RESETX(17, 0x2014, 0),		/* USB30-PHY1 */
838c2ecf20Sopenharmony_ci	UNIPHIER_RESETX(18, 0x2014, 2),		/* USB30-PHY2 */
848c2ecf20Sopenharmony_ci	UNIPHIER_RESETX(20, 0x2014, 5),		/* USB31-PHY0 */
858c2ecf20Sopenharmony_ci	UNIPHIER_RESETX(21, 0x2014, 1),		/* USB31-PHY1 */
868c2ecf20Sopenharmony_ci	UNIPHIER_RESETX(28, 0x2014, 12),	/* SATA */
878c2ecf20Sopenharmony_ci	UNIPHIER_RESET(30, 0x2014, 8),		/* SATA-PHY (active high) */
888c2ecf20Sopenharmony_ci	UNIPHIER_RESETX(40, 0x2000, 13),	/* AIO */
898c2ecf20Sopenharmony_ci	UNIPHIER_RESET_END,
908c2ecf20Sopenharmony_ci};
918c2ecf20Sopenharmony_ci
928c2ecf20Sopenharmony_cistatic const struct uniphier_reset_data uniphier_ld11_sys_reset_data[] = {
938c2ecf20Sopenharmony_ci	UNIPHIER_RESETX(2, 0x200c, 0),		/* NAND */
948c2ecf20Sopenharmony_ci	UNIPHIER_RESETX(4, 0x200c, 2),		/* eMMC */
958c2ecf20Sopenharmony_ci	UNIPHIER_RESETX(6, 0x200c, 6),		/* Ether */
968c2ecf20Sopenharmony_ci	UNIPHIER_RESETX(8, 0x200c, 8),		/* STDMAC (HSC, MIO) */
978c2ecf20Sopenharmony_ci	UNIPHIER_RESETX(9, 0x200c, 9),		/* HSC */
988c2ecf20Sopenharmony_ci	UNIPHIER_RESETX(40, 0x2008, 0),		/* AIO */
998c2ecf20Sopenharmony_ci	UNIPHIER_RESETX(41, 0x2008, 1),		/* EVEA */
1008c2ecf20Sopenharmony_ci	UNIPHIER_RESETX(42, 0x2010, 2),		/* EXIV */
1018c2ecf20Sopenharmony_ci	UNIPHIER_RESET_END,
1028c2ecf20Sopenharmony_ci};
1038c2ecf20Sopenharmony_ci
1048c2ecf20Sopenharmony_cistatic const struct uniphier_reset_data uniphier_ld20_sys_reset_data[] = {
1058c2ecf20Sopenharmony_ci	UNIPHIER_RESETX(2, 0x200c, 0),		/* NAND */
1068c2ecf20Sopenharmony_ci	UNIPHIER_RESETX(4, 0x200c, 2),		/* eMMC */
1078c2ecf20Sopenharmony_ci	UNIPHIER_RESETX(6, 0x200c, 6),		/* Ether */
1088c2ecf20Sopenharmony_ci	UNIPHIER_RESETX(8, 0x200c, 8),		/* STDMAC (HSC) */
1098c2ecf20Sopenharmony_ci	UNIPHIER_RESETX(9, 0x200c, 9),		/* HSC */
1108c2ecf20Sopenharmony_ci	UNIPHIER_RESETX(14, 0x200c, 5),		/* USB30 */
1118c2ecf20Sopenharmony_ci	UNIPHIER_RESETX(16, 0x200c, 12),	/* USB30-PHY0 */
1128c2ecf20Sopenharmony_ci	UNIPHIER_RESETX(17, 0x200c, 13),	/* USB30-PHY1 */
1138c2ecf20Sopenharmony_ci	UNIPHIER_RESETX(18, 0x200c, 14),	/* USB30-PHY2 */
1148c2ecf20Sopenharmony_ci	UNIPHIER_RESETX(19, 0x200c, 15),	/* USB30-PHY3 */
1158c2ecf20Sopenharmony_ci	UNIPHIER_RESETX(24, 0x200c, 4),		/* PCIe */
1168c2ecf20Sopenharmony_ci	UNIPHIER_RESETX(40, 0x2008, 0),		/* AIO */
1178c2ecf20Sopenharmony_ci	UNIPHIER_RESETX(41, 0x2008, 1),		/* EVEA */
1188c2ecf20Sopenharmony_ci	UNIPHIER_RESETX(42, 0x2010, 2),		/* EXIV */
1198c2ecf20Sopenharmony_ci	UNIPHIER_RESET_END,
1208c2ecf20Sopenharmony_ci};
1218c2ecf20Sopenharmony_ci
1228c2ecf20Sopenharmony_cistatic const struct uniphier_reset_data uniphier_pxs3_sys_reset_data[] = {
1238c2ecf20Sopenharmony_ci	UNIPHIER_RESETX(2, 0x200c, 0),		/* NAND */
1248c2ecf20Sopenharmony_ci	UNIPHIER_RESETX(4, 0x200c, 2),		/* eMMC */
1258c2ecf20Sopenharmony_ci	UNIPHIER_RESETX(6, 0x200c, 9),		/* Ether0 */
1268c2ecf20Sopenharmony_ci	UNIPHIER_RESETX(7, 0x200c, 10),		/* Ether1 */
1278c2ecf20Sopenharmony_ci	UNIPHIER_RESETX(8, 0x200c, 12),		/* STDMAC */
1288c2ecf20Sopenharmony_ci	UNIPHIER_RESETX(12, 0x200c, 4),		/* USB30 link */
1298c2ecf20Sopenharmony_ci	UNIPHIER_RESETX(13, 0x200c, 5),		/* USB31 link */
1308c2ecf20Sopenharmony_ci	UNIPHIER_RESETX(16, 0x200c, 16),	/* USB30-PHY0 */
1318c2ecf20Sopenharmony_ci	UNIPHIER_RESETX(17, 0x200c, 18),	/* USB30-PHY1 */
1328c2ecf20Sopenharmony_ci	UNIPHIER_RESETX(18, 0x200c, 20),	/* USB30-PHY2 */
1338c2ecf20Sopenharmony_ci	UNIPHIER_RESETX(20, 0x200c, 17),	/* USB31-PHY0 */
1348c2ecf20Sopenharmony_ci	UNIPHIER_RESETX(21, 0x200c, 19),	/* USB31-PHY1 */
1358c2ecf20Sopenharmony_ci	UNIPHIER_RESETX(24, 0x200c, 3),		/* PCIe */
1368c2ecf20Sopenharmony_ci	UNIPHIER_RESETX(28, 0x200c, 7),		/* SATA0 */
1378c2ecf20Sopenharmony_ci	UNIPHIER_RESETX(29, 0x200c, 8),		/* SATA1 */
1388c2ecf20Sopenharmony_ci	UNIPHIER_RESETX(30, 0x200c, 21),	/* SATA-PHY */
1398c2ecf20Sopenharmony_ci	UNIPHIER_RESET_END,
1408c2ecf20Sopenharmony_ci};
1418c2ecf20Sopenharmony_ci
1428c2ecf20Sopenharmony_ci/* Media I/O reset data */
1438c2ecf20Sopenharmony_ci#define UNIPHIER_MIO_RESET_SD(id, ch)			\
1448c2ecf20Sopenharmony_ci	UNIPHIER_RESETX((id), 0x110 + 0x200 * (ch), 0)
1458c2ecf20Sopenharmony_ci
1468c2ecf20Sopenharmony_ci#define UNIPHIER_MIO_RESET_SD_BRIDGE(id, ch)		\
1478c2ecf20Sopenharmony_ci	UNIPHIER_RESETX((id), 0x110 + 0x200 * (ch), 26)
1488c2ecf20Sopenharmony_ci
1498c2ecf20Sopenharmony_ci#define UNIPHIER_MIO_RESET_EMMC_HW_RESET(id, ch)	\
1508c2ecf20Sopenharmony_ci	UNIPHIER_RESETX((id), 0x80 + 0x200 * (ch), 0)
1518c2ecf20Sopenharmony_ci
1528c2ecf20Sopenharmony_ci#define UNIPHIER_MIO_RESET_USB2(id, ch)			\
1538c2ecf20Sopenharmony_ci	UNIPHIER_RESETX((id), 0x114 + 0x200 * (ch), 0)
1548c2ecf20Sopenharmony_ci
1558c2ecf20Sopenharmony_ci#define UNIPHIER_MIO_RESET_USB2_BRIDGE(id, ch)		\
1568c2ecf20Sopenharmony_ci	UNIPHIER_RESETX((id), 0x110 + 0x200 * (ch), 24)
1578c2ecf20Sopenharmony_ci
1588c2ecf20Sopenharmony_ci#define UNIPHIER_MIO_RESET_DMAC(id)			\
1598c2ecf20Sopenharmony_ci	UNIPHIER_RESETX((id), 0x110, 17)
1608c2ecf20Sopenharmony_ci
1618c2ecf20Sopenharmony_cistatic const struct uniphier_reset_data uniphier_ld4_mio_reset_data[] = {
1628c2ecf20Sopenharmony_ci	UNIPHIER_MIO_RESET_SD(0, 0),
1638c2ecf20Sopenharmony_ci	UNIPHIER_MIO_RESET_SD(1, 1),
1648c2ecf20Sopenharmony_ci	UNIPHIER_MIO_RESET_SD(2, 2),
1658c2ecf20Sopenharmony_ci	UNIPHIER_MIO_RESET_SD_BRIDGE(3, 0),
1668c2ecf20Sopenharmony_ci	UNIPHIER_MIO_RESET_SD_BRIDGE(4, 1),
1678c2ecf20Sopenharmony_ci	UNIPHIER_MIO_RESET_SD_BRIDGE(5, 2),
1688c2ecf20Sopenharmony_ci	UNIPHIER_MIO_RESET_EMMC_HW_RESET(6, 1),
1698c2ecf20Sopenharmony_ci	UNIPHIER_MIO_RESET_DMAC(7),
1708c2ecf20Sopenharmony_ci	UNIPHIER_MIO_RESET_USB2(8, 0),
1718c2ecf20Sopenharmony_ci	UNIPHIER_MIO_RESET_USB2(9, 1),
1728c2ecf20Sopenharmony_ci	UNIPHIER_MIO_RESET_USB2(10, 2),
1738c2ecf20Sopenharmony_ci	UNIPHIER_MIO_RESET_USB2_BRIDGE(12, 0),
1748c2ecf20Sopenharmony_ci	UNIPHIER_MIO_RESET_USB2_BRIDGE(13, 1),
1758c2ecf20Sopenharmony_ci	UNIPHIER_MIO_RESET_USB2_BRIDGE(14, 2),
1768c2ecf20Sopenharmony_ci	UNIPHIER_RESET_END,
1778c2ecf20Sopenharmony_ci};
1788c2ecf20Sopenharmony_ci
1798c2ecf20Sopenharmony_cistatic const struct uniphier_reset_data uniphier_pro5_sd_reset_data[] = {
1808c2ecf20Sopenharmony_ci	UNIPHIER_MIO_RESET_SD(0, 0),
1818c2ecf20Sopenharmony_ci	UNIPHIER_MIO_RESET_SD(1, 1),
1828c2ecf20Sopenharmony_ci	UNIPHIER_MIO_RESET_EMMC_HW_RESET(6, 1),
1838c2ecf20Sopenharmony_ci	UNIPHIER_RESET_END,
1848c2ecf20Sopenharmony_ci};
1858c2ecf20Sopenharmony_ci
1868c2ecf20Sopenharmony_ci/* Peripheral reset data */
1878c2ecf20Sopenharmony_ci#define UNIPHIER_PERI_RESET_UART(id, ch)		\
1888c2ecf20Sopenharmony_ci	UNIPHIER_RESETX((id), 0x114, 19 + (ch))
1898c2ecf20Sopenharmony_ci
1908c2ecf20Sopenharmony_ci#define UNIPHIER_PERI_RESET_I2C(id, ch)			\
1918c2ecf20Sopenharmony_ci	UNIPHIER_RESETX((id), 0x114, 5 + (ch))
1928c2ecf20Sopenharmony_ci
1938c2ecf20Sopenharmony_ci#define UNIPHIER_PERI_RESET_FI2C(id, ch)		\
1948c2ecf20Sopenharmony_ci	UNIPHIER_RESETX((id), 0x114, 24 + (ch))
1958c2ecf20Sopenharmony_ci
1968c2ecf20Sopenharmony_ci#define UNIPHIER_PERI_RESET_SCSSI(id, ch)		\
1978c2ecf20Sopenharmony_ci	UNIPHIER_RESETX((id), 0x110, 17 + (ch))
1988c2ecf20Sopenharmony_ci
1998c2ecf20Sopenharmony_ci#define UNIPHIER_PERI_RESET_MCSSI(id)			\
2008c2ecf20Sopenharmony_ci	UNIPHIER_RESETX((id), 0x114, 14)
2018c2ecf20Sopenharmony_ci
2028c2ecf20Sopenharmony_cistatic const struct uniphier_reset_data uniphier_ld4_peri_reset_data[] = {
2038c2ecf20Sopenharmony_ci	UNIPHIER_PERI_RESET_UART(0, 0),
2048c2ecf20Sopenharmony_ci	UNIPHIER_PERI_RESET_UART(1, 1),
2058c2ecf20Sopenharmony_ci	UNIPHIER_PERI_RESET_UART(2, 2),
2068c2ecf20Sopenharmony_ci	UNIPHIER_PERI_RESET_UART(3, 3),
2078c2ecf20Sopenharmony_ci	UNIPHIER_PERI_RESET_I2C(4, 0),
2088c2ecf20Sopenharmony_ci	UNIPHIER_PERI_RESET_I2C(5, 1),
2098c2ecf20Sopenharmony_ci	UNIPHIER_PERI_RESET_I2C(6, 2),
2108c2ecf20Sopenharmony_ci	UNIPHIER_PERI_RESET_I2C(7, 3),
2118c2ecf20Sopenharmony_ci	UNIPHIER_PERI_RESET_I2C(8, 4),
2128c2ecf20Sopenharmony_ci	UNIPHIER_PERI_RESET_SCSSI(11, 0),
2138c2ecf20Sopenharmony_ci	UNIPHIER_RESET_END,
2148c2ecf20Sopenharmony_ci};
2158c2ecf20Sopenharmony_ci
2168c2ecf20Sopenharmony_cistatic const struct uniphier_reset_data uniphier_pro4_peri_reset_data[] = {
2178c2ecf20Sopenharmony_ci	UNIPHIER_PERI_RESET_UART(0, 0),
2188c2ecf20Sopenharmony_ci	UNIPHIER_PERI_RESET_UART(1, 1),
2198c2ecf20Sopenharmony_ci	UNIPHIER_PERI_RESET_UART(2, 2),
2208c2ecf20Sopenharmony_ci	UNIPHIER_PERI_RESET_UART(3, 3),
2218c2ecf20Sopenharmony_ci	UNIPHIER_PERI_RESET_FI2C(4, 0),
2228c2ecf20Sopenharmony_ci	UNIPHIER_PERI_RESET_FI2C(5, 1),
2238c2ecf20Sopenharmony_ci	UNIPHIER_PERI_RESET_FI2C(6, 2),
2248c2ecf20Sopenharmony_ci	UNIPHIER_PERI_RESET_FI2C(7, 3),
2258c2ecf20Sopenharmony_ci	UNIPHIER_PERI_RESET_FI2C(8, 4),
2268c2ecf20Sopenharmony_ci	UNIPHIER_PERI_RESET_FI2C(9, 5),
2278c2ecf20Sopenharmony_ci	UNIPHIER_PERI_RESET_FI2C(10, 6),
2288c2ecf20Sopenharmony_ci	UNIPHIER_PERI_RESET_SCSSI(11, 0),
2298c2ecf20Sopenharmony_ci	UNIPHIER_PERI_RESET_SCSSI(12, 1),
2308c2ecf20Sopenharmony_ci	UNIPHIER_PERI_RESET_SCSSI(13, 2),
2318c2ecf20Sopenharmony_ci	UNIPHIER_PERI_RESET_SCSSI(14, 3),
2328c2ecf20Sopenharmony_ci	UNIPHIER_PERI_RESET_MCSSI(15),
2338c2ecf20Sopenharmony_ci	UNIPHIER_RESET_END,
2348c2ecf20Sopenharmony_ci};
2358c2ecf20Sopenharmony_ci
2368c2ecf20Sopenharmony_ci/* Analog signal amplifiers reset data */
2378c2ecf20Sopenharmony_cistatic const struct uniphier_reset_data uniphier_ld11_adamv_reset_data[] = {
2388c2ecf20Sopenharmony_ci	UNIPHIER_RESETX(0, 0x10, 6), /* EVEA */
2398c2ecf20Sopenharmony_ci	UNIPHIER_RESET_END,
2408c2ecf20Sopenharmony_ci};
2418c2ecf20Sopenharmony_ci
2428c2ecf20Sopenharmony_ci/* core implementaton */
2438c2ecf20Sopenharmony_cistruct uniphier_reset_priv {
2448c2ecf20Sopenharmony_ci	struct reset_controller_dev rcdev;
2458c2ecf20Sopenharmony_ci	struct device *dev;
2468c2ecf20Sopenharmony_ci	struct regmap *regmap;
2478c2ecf20Sopenharmony_ci	const struct uniphier_reset_data *data;
2488c2ecf20Sopenharmony_ci};
2498c2ecf20Sopenharmony_ci
2508c2ecf20Sopenharmony_ci#define to_uniphier_reset_priv(_rcdev) \
2518c2ecf20Sopenharmony_ci			container_of(_rcdev, struct uniphier_reset_priv, rcdev)
2528c2ecf20Sopenharmony_ci
2538c2ecf20Sopenharmony_cistatic int uniphier_reset_update(struct reset_controller_dev *rcdev,
2548c2ecf20Sopenharmony_ci				 unsigned long id, int assert)
2558c2ecf20Sopenharmony_ci{
2568c2ecf20Sopenharmony_ci	struct uniphier_reset_priv *priv = to_uniphier_reset_priv(rcdev);
2578c2ecf20Sopenharmony_ci	const struct uniphier_reset_data *p;
2588c2ecf20Sopenharmony_ci
2598c2ecf20Sopenharmony_ci	for (p = priv->data; p->id != UNIPHIER_RESET_ID_END; p++) {
2608c2ecf20Sopenharmony_ci		unsigned int mask, val;
2618c2ecf20Sopenharmony_ci
2628c2ecf20Sopenharmony_ci		if (p->id != id)
2638c2ecf20Sopenharmony_ci			continue;
2648c2ecf20Sopenharmony_ci
2658c2ecf20Sopenharmony_ci		mask = BIT(p->bit);
2668c2ecf20Sopenharmony_ci
2678c2ecf20Sopenharmony_ci		if (assert)
2688c2ecf20Sopenharmony_ci			val = mask;
2698c2ecf20Sopenharmony_ci		else
2708c2ecf20Sopenharmony_ci			val = ~mask;
2718c2ecf20Sopenharmony_ci
2728c2ecf20Sopenharmony_ci		if (p->flags & UNIPHIER_RESET_ACTIVE_LOW)
2738c2ecf20Sopenharmony_ci			val = ~val;
2748c2ecf20Sopenharmony_ci
2758c2ecf20Sopenharmony_ci		return regmap_write_bits(priv->regmap, p->reg, mask, val);
2768c2ecf20Sopenharmony_ci	}
2778c2ecf20Sopenharmony_ci
2788c2ecf20Sopenharmony_ci	dev_err(priv->dev, "reset_id=%lu was not handled\n", id);
2798c2ecf20Sopenharmony_ci	return -EINVAL;
2808c2ecf20Sopenharmony_ci}
2818c2ecf20Sopenharmony_ci
2828c2ecf20Sopenharmony_cistatic int uniphier_reset_assert(struct reset_controller_dev *rcdev,
2838c2ecf20Sopenharmony_ci				 unsigned long id)
2848c2ecf20Sopenharmony_ci{
2858c2ecf20Sopenharmony_ci	return uniphier_reset_update(rcdev, id, 1);
2868c2ecf20Sopenharmony_ci}
2878c2ecf20Sopenharmony_ci
2888c2ecf20Sopenharmony_cistatic int uniphier_reset_deassert(struct reset_controller_dev *rcdev,
2898c2ecf20Sopenharmony_ci				   unsigned long id)
2908c2ecf20Sopenharmony_ci{
2918c2ecf20Sopenharmony_ci	return uniphier_reset_update(rcdev, id, 0);
2928c2ecf20Sopenharmony_ci}
2938c2ecf20Sopenharmony_ci
2948c2ecf20Sopenharmony_cistatic int uniphier_reset_status(struct reset_controller_dev *rcdev,
2958c2ecf20Sopenharmony_ci				 unsigned long id)
2968c2ecf20Sopenharmony_ci{
2978c2ecf20Sopenharmony_ci	struct uniphier_reset_priv *priv = to_uniphier_reset_priv(rcdev);
2988c2ecf20Sopenharmony_ci	const struct uniphier_reset_data *p;
2998c2ecf20Sopenharmony_ci
3008c2ecf20Sopenharmony_ci	for (p = priv->data; p->id != UNIPHIER_RESET_ID_END; p++) {
3018c2ecf20Sopenharmony_ci		unsigned int val;
3028c2ecf20Sopenharmony_ci		int ret, asserted;
3038c2ecf20Sopenharmony_ci
3048c2ecf20Sopenharmony_ci		if (p->id != id)
3058c2ecf20Sopenharmony_ci			continue;
3068c2ecf20Sopenharmony_ci
3078c2ecf20Sopenharmony_ci		ret = regmap_read(priv->regmap, p->reg, &val);
3088c2ecf20Sopenharmony_ci		if (ret)
3098c2ecf20Sopenharmony_ci			return ret;
3108c2ecf20Sopenharmony_ci
3118c2ecf20Sopenharmony_ci		asserted = !!(val & BIT(p->bit));
3128c2ecf20Sopenharmony_ci
3138c2ecf20Sopenharmony_ci		if (p->flags & UNIPHIER_RESET_ACTIVE_LOW)
3148c2ecf20Sopenharmony_ci			asserted = !asserted;
3158c2ecf20Sopenharmony_ci
3168c2ecf20Sopenharmony_ci		return asserted;
3178c2ecf20Sopenharmony_ci	}
3188c2ecf20Sopenharmony_ci
3198c2ecf20Sopenharmony_ci	dev_err(priv->dev, "reset_id=%lu was not found\n", id);
3208c2ecf20Sopenharmony_ci	return -EINVAL;
3218c2ecf20Sopenharmony_ci}
3228c2ecf20Sopenharmony_ci
3238c2ecf20Sopenharmony_cistatic const struct reset_control_ops uniphier_reset_ops = {
3248c2ecf20Sopenharmony_ci	.assert = uniphier_reset_assert,
3258c2ecf20Sopenharmony_ci	.deassert = uniphier_reset_deassert,
3268c2ecf20Sopenharmony_ci	.status = uniphier_reset_status,
3278c2ecf20Sopenharmony_ci};
3288c2ecf20Sopenharmony_ci
3298c2ecf20Sopenharmony_cistatic int uniphier_reset_probe(struct platform_device *pdev)
3308c2ecf20Sopenharmony_ci{
3318c2ecf20Sopenharmony_ci	struct device *dev = &pdev->dev;
3328c2ecf20Sopenharmony_ci	struct uniphier_reset_priv *priv;
3338c2ecf20Sopenharmony_ci	const struct uniphier_reset_data *p, *data;
3348c2ecf20Sopenharmony_ci	struct regmap *regmap;
3358c2ecf20Sopenharmony_ci	struct device_node *parent;
3368c2ecf20Sopenharmony_ci	unsigned int nr_resets = 0;
3378c2ecf20Sopenharmony_ci
3388c2ecf20Sopenharmony_ci	data = of_device_get_match_data(dev);
3398c2ecf20Sopenharmony_ci	if (WARN_ON(!data))
3408c2ecf20Sopenharmony_ci		return -EINVAL;
3418c2ecf20Sopenharmony_ci
3428c2ecf20Sopenharmony_ci	parent = of_get_parent(dev->of_node); /* parent should be syscon node */
3438c2ecf20Sopenharmony_ci	regmap = syscon_node_to_regmap(parent);
3448c2ecf20Sopenharmony_ci	of_node_put(parent);
3458c2ecf20Sopenharmony_ci	if (IS_ERR(regmap)) {
3468c2ecf20Sopenharmony_ci		dev_err(dev, "failed to get regmap (error %ld)\n",
3478c2ecf20Sopenharmony_ci			PTR_ERR(regmap));
3488c2ecf20Sopenharmony_ci		return PTR_ERR(regmap);
3498c2ecf20Sopenharmony_ci	}
3508c2ecf20Sopenharmony_ci
3518c2ecf20Sopenharmony_ci	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
3528c2ecf20Sopenharmony_ci	if (!priv)
3538c2ecf20Sopenharmony_ci		return -ENOMEM;
3548c2ecf20Sopenharmony_ci
3558c2ecf20Sopenharmony_ci	for (p = data; p->id != UNIPHIER_RESET_ID_END; p++)
3568c2ecf20Sopenharmony_ci		nr_resets = max(nr_resets, p->id + 1);
3578c2ecf20Sopenharmony_ci
3588c2ecf20Sopenharmony_ci	priv->rcdev.ops = &uniphier_reset_ops;
3598c2ecf20Sopenharmony_ci	priv->rcdev.owner = dev->driver->owner;
3608c2ecf20Sopenharmony_ci	priv->rcdev.of_node = dev->of_node;
3618c2ecf20Sopenharmony_ci	priv->rcdev.nr_resets = nr_resets;
3628c2ecf20Sopenharmony_ci	priv->dev = dev;
3638c2ecf20Sopenharmony_ci	priv->regmap = regmap;
3648c2ecf20Sopenharmony_ci	priv->data = data;
3658c2ecf20Sopenharmony_ci
3668c2ecf20Sopenharmony_ci	return devm_reset_controller_register(&pdev->dev, &priv->rcdev);
3678c2ecf20Sopenharmony_ci}
3688c2ecf20Sopenharmony_ci
3698c2ecf20Sopenharmony_cistatic const struct of_device_id uniphier_reset_match[] = {
3708c2ecf20Sopenharmony_ci	/* System reset */
3718c2ecf20Sopenharmony_ci	{
3728c2ecf20Sopenharmony_ci		.compatible = "socionext,uniphier-ld4-reset",
3738c2ecf20Sopenharmony_ci		.data = uniphier_ld4_sys_reset_data,
3748c2ecf20Sopenharmony_ci	},
3758c2ecf20Sopenharmony_ci	{
3768c2ecf20Sopenharmony_ci		.compatible = "socionext,uniphier-pro4-reset",
3778c2ecf20Sopenharmony_ci		.data = uniphier_pro4_sys_reset_data,
3788c2ecf20Sopenharmony_ci	},
3798c2ecf20Sopenharmony_ci	{
3808c2ecf20Sopenharmony_ci		.compatible = "socionext,uniphier-sld8-reset",
3818c2ecf20Sopenharmony_ci		.data = uniphier_ld4_sys_reset_data,
3828c2ecf20Sopenharmony_ci	},
3838c2ecf20Sopenharmony_ci	{
3848c2ecf20Sopenharmony_ci		.compatible = "socionext,uniphier-pro5-reset",
3858c2ecf20Sopenharmony_ci		.data = uniphier_pro5_sys_reset_data,
3868c2ecf20Sopenharmony_ci	},
3878c2ecf20Sopenharmony_ci	{
3888c2ecf20Sopenharmony_ci		.compatible = "socionext,uniphier-pxs2-reset",
3898c2ecf20Sopenharmony_ci		.data = uniphier_pxs2_sys_reset_data,
3908c2ecf20Sopenharmony_ci	},
3918c2ecf20Sopenharmony_ci	{
3928c2ecf20Sopenharmony_ci		.compatible = "socionext,uniphier-ld11-reset",
3938c2ecf20Sopenharmony_ci		.data = uniphier_ld11_sys_reset_data,
3948c2ecf20Sopenharmony_ci	},
3958c2ecf20Sopenharmony_ci	{
3968c2ecf20Sopenharmony_ci		.compatible = "socionext,uniphier-ld20-reset",
3978c2ecf20Sopenharmony_ci		.data = uniphier_ld20_sys_reset_data,
3988c2ecf20Sopenharmony_ci	},
3998c2ecf20Sopenharmony_ci	{
4008c2ecf20Sopenharmony_ci		.compatible = "socionext,uniphier-pxs3-reset",
4018c2ecf20Sopenharmony_ci		.data = uniphier_pxs3_sys_reset_data,
4028c2ecf20Sopenharmony_ci	},
4038c2ecf20Sopenharmony_ci	/* Media I/O reset, SD reset */
4048c2ecf20Sopenharmony_ci	{
4058c2ecf20Sopenharmony_ci		.compatible = "socionext,uniphier-ld4-mio-reset",
4068c2ecf20Sopenharmony_ci		.data = uniphier_ld4_mio_reset_data,
4078c2ecf20Sopenharmony_ci	},
4088c2ecf20Sopenharmony_ci	{
4098c2ecf20Sopenharmony_ci		.compatible = "socionext,uniphier-pro4-mio-reset",
4108c2ecf20Sopenharmony_ci		.data = uniphier_ld4_mio_reset_data,
4118c2ecf20Sopenharmony_ci	},
4128c2ecf20Sopenharmony_ci	{
4138c2ecf20Sopenharmony_ci		.compatible = "socionext,uniphier-sld8-mio-reset",
4148c2ecf20Sopenharmony_ci		.data = uniphier_ld4_mio_reset_data,
4158c2ecf20Sopenharmony_ci	},
4168c2ecf20Sopenharmony_ci	{
4178c2ecf20Sopenharmony_ci		.compatible = "socionext,uniphier-pro5-sd-reset",
4188c2ecf20Sopenharmony_ci		.data = uniphier_pro5_sd_reset_data,
4198c2ecf20Sopenharmony_ci	},
4208c2ecf20Sopenharmony_ci	{
4218c2ecf20Sopenharmony_ci		.compatible = "socionext,uniphier-pxs2-sd-reset",
4228c2ecf20Sopenharmony_ci		.data = uniphier_pro5_sd_reset_data,
4238c2ecf20Sopenharmony_ci	},
4248c2ecf20Sopenharmony_ci	{
4258c2ecf20Sopenharmony_ci		.compatible = "socionext,uniphier-ld11-mio-reset",
4268c2ecf20Sopenharmony_ci		.data = uniphier_ld4_mio_reset_data,
4278c2ecf20Sopenharmony_ci	},
4288c2ecf20Sopenharmony_ci	{
4298c2ecf20Sopenharmony_ci		.compatible = "socionext,uniphier-ld11-sd-reset",
4308c2ecf20Sopenharmony_ci		.data = uniphier_pro5_sd_reset_data,
4318c2ecf20Sopenharmony_ci	},
4328c2ecf20Sopenharmony_ci	{
4338c2ecf20Sopenharmony_ci		.compatible = "socionext,uniphier-ld20-sd-reset",
4348c2ecf20Sopenharmony_ci		.data = uniphier_pro5_sd_reset_data,
4358c2ecf20Sopenharmony_ci	},
4368c2ecf20Sopenharmony_ci	{
4378c2ecf20Sopenharmony_ci		.compatible = "socionext,uniphier-pxs3-sd-reset",
4388c2ecf20Sopenharmony_ci		.data = uniphier_pro5_sd_reset_data,
4398c2ecf20Sopenharmony_ci	},
4408c2ecf20Sopenharmony_ci	/* Peripheral reset */
4418c2ecf20Sopenharmony_ci	{
4428c2ecf20Sopenharmony_ci		.compatible = "socionext,uniphier-ld4-peri-reset",
4438c2ecf20Sopenharmony_ci		.data = uniphier_ld4_peri_reset_data,
4448c2ecf20Sopenharmony_ci	},
4458c2ecf20Sopenharmony_ci	{
4468c2ecf20Sopenharmony_ci		.compatible = "socionext,uniphier-pro4-peri-reset",
4478c2ecf20Sopenharmony_ci		.data = uniphier_pro4_peri_reset_data,
4488c2ecf20Sopenharmony_ci	},
4498c2ecf20Sopenharmony_ci	{
4508c2ecf20Sopenharmony_ci		.compatible = "socionext,uniphier-sld8-peri-reset",
4518c2ecf20Sopenharmony_ci		.data = uniphier_ld4_peri_reset_data,
4528c2ecf20Sopenharmony_ci	},
4538c2ecf20Sopenharmony_ci	{
4548c2ecf20Sopenharmony_ci		.compatible = "socionext,uniphier-pro5-peri-reset",
4558c2ecf20Sopenharmony_ci		.data = uniphier_pro4_peri_reset_data,
4568c2ecf20Sopenharmony_ci	},
4578c2ecf20Sopenharmony_ci	{
4588c2ecf20Sopenharmony_ci		.compatible = "socionext,uniphier-pxs2-peri-reset",
4598c2ecf20Sopenharmony_ci		.data = uniphier_pro4_peri_reset_data,
4608c2ecf20Sopenharmony_ci	},
4618c2ecf20Sopenharmony_ci	{
4628c2ecf20Sopenharmony_ci		.compatible = "socionext,uniphier-ld11-peri-reset",
4638c2ecf20Sopenharmony_ci		.data = uniphier_pro4_peri_reset_data,
4648c2ecf20Sopenharmony_ci	},
4658c2ecf20Sopenharmony_ci	{
4668c2ecf20Sopenharmony_ci		.compatible = "socionext,uniphier-ld20-peri-reset",
4678c2ecf20Sopenharmony_ci		.data = uniphier_pro4_peri_reset_data,
4688c2ecf20Sopenharmony_ci	},
4698c2ecf20Sopenharmony_ci	{
4708c2ecf20Sopenharmony_ci		.compatible = "socionext,uniphier-pxs3-peri-reset",
4718c2ecf20Sopenharmony_ci		.data = uniphier_pro4_peri_reset_data,
4728c2ecf20Sopenharmony_ci	},
4738c2ecf20Sopenharmony_ci	/* Analog signal amplifiers reset */
4748c2ecf20Sopenharmony_ci	{
4758c2ecf20Sopenharmony_ci		.compatible = "socionext,uniphier-ld11-adamv-reset",
4768c2ecf20Sopenharmony_ci		.data = uniphier_ld11_adamv_reset_data,
4778c2ecf20Sopenharmony_ci	},
4788c2ecf20Sopenharmony_ci	{
4798c2ecf20Sopenharmony_ci		.compatible = "socionext,uniphier-ld20-adamv-reset",
4808c2ecf20Sopenharmony_ci		.data = uniphier_ld11_adamv_reset_data,
4818c2ecf20Sopenharmony_ci	},
4828c2ecf20Sopenharmony_ci	{ /* sentinel */ }
4838c2ecf20Sopenharmony_ci};
4848c2ecf20Sopenharmony_ciMODULE_DEVICE_TABLE(of, uniphier_reset_match);
4858c2ecf20Sopenharmony_ci
4868c2ecf20Sopenharmony_cistatic struct platform_driver uniphier_reset_driver = {
4878c2ecf20Sopenharmony_ci	.probe = uniphier_reset_probe,
4888c2ecf20Sopenharmony_ci	.driver = {
4898c2ecf20Sopenharmony_ci		.name = "uniphier-reset",
4908c2ecf20Sopenharmony_ci		.of_match_table = uniphier_reset_match,
4918c2ecf20Sopenharmony_ci	},
4928c2ecf20Sopenharmony_ci};
4938c2ecf20Sopenharmony_cimodule_platform_driver(uniphier_reset_driver);
4948c2ecf20Sopenharmony_ci
4958c2ecf20Sopenharmony_ciMODULE_AUTHOR("Masahiro Yamada <yamada.masahiro@socionext.com>");
4968c2ecf20Sopenharmony_ciMODULE_DESCRIPTION("UniPhier Reset Controller Driver");
4978c2ecf20Sopenharmony_ciMODULE_LICENSE("GPL");
498