Author | Tokens | Token Proportion | Commits | Commit Proportion |
---|---|---|---|---|
Masahiro Yamada | 1969 | 84.94% | 8 | 42.11% |
Kunihiko Hayashi | 182 | 7.85% | 5 | 26.32% |
Katsuhiro Suzuki | 157 | 6.77% | 5 | 26.32% |
Wei Yongjun | 10 | 0.43% | 1 | 5.26% |
Total | 2318 | 19 |
/* * Copyright (C) 2016 Socionext Inc. * Author: Masahiro Yamada <yamada.masahiro@socionext.com> * * 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. */ #include <linux/mfd/syscon.h> #include <linux/module.h> #include <linux/of.h> #include <linux/of_device.h> #include <linux/platform_device.h> #include <linux/regmap.h> #include <linux/reset-controller.h> struct uniphier_reset_data { unsigned int id; unsigned int reg; unsigned int bit; unsigned int flags; #define UNIPHIER_RESET_ACTIVE_LOW BIT(0) }; #define UNIPHIER_RESET_ID_END (unsigned int)(-1) #define UNIPHIER_RESET_END \ { .id = UNIPHIER_RESET_ID_END } #define UNIPHIER_RESET(_id, _reg, _bit) \ { \ .id = (_id), \ .reg = (_reg), \ .bit = (_bit), \ } #define UNIPHIER_RESETX(_id, _reg, _bit) \ { \ .id = (_id), \ .reg = (_reg), \ .bit = (_bit), \ .flags = UNIPHIER_RESET_ACTIVE_LOW, \ } /* System reset data */ static const struct uniphier_reset_data uniphier_ld4_sys_reset_data[] = { UNIPHIER_RESETX(2, 0x2000, 2), /* NAND */ UNIPHIER_RESETX(8, 0x2000, 10), /* STDMAC (Ether, HSC, MIO) */ UNIPHIER_RESET_END, }; static const struct uniphier_reset_data uniphier_pro4_sys_reset_data[] = { UNIPHIER_RESETX(2, 0x2000, 2), /* NAND */ UNIPHIER_RESETX(6, 0x2000, 12), /* Ether */ UNIPHIER_RESETX(8, 0x2000, 10), /* STDMAC (HSC, MIO, RLE) */ UNIPHIER_RESETX(12, 0x2000, 6), /* GIO (Ether, SATA, USB3) */ UNIPHIER_RESETX(14, 0x2000, 17), /* USB30 */ UNIPHIER_RESETX(15, 0x2004, 17), /* USB31 */ UNIPHIER_RESETX(28, 0x2000, 18), /* SATA0 */ UNIPHIER_RESETX(29, 0x2004, 18), /* SATA1 */ UNIPHIER_RESETX(30, 0x2000, 19), /* SATA-PHY */ UNIPHIER_RESETX(40, 0x2000, 13), /* AIO */ UNIPHIER_RESET_END, }; static const struct uniphier_reset_data uniphier_pro5_sys_reset_data[] = { UNIPHIER_RESETX(2, 0x2000, 2), /* NAND */ UNIPHIER_RESETX(8, 0x2000, 10), /* STDMAC (HSC) */ UNIPHIER_RESETX(12, 0x2000, 6), /* GIO (PCIe, USB3) */ UNIPHIER_RESETX(14, 0x2000, 17), /* USB30 */ UNIPHIER_RESETX(15, 0x2004, 17), /* USB31 */ UNIPHIER_RESETX(24, 0x2008, 2), /* PCIe */ UNIPHIER_RESETX(40, 0x2000, 13), /* AIO */ UNIPHIER_RESET_END, }; static const struct uniphier_reset_data uniphier_pxs2_sys_reset_data[] = { UNIPHIER_RESETX(2, 0x2000, 2), /* NAND */ UNIPHIER_RESETX(6, 0x2000, 12), /* Ether */ UNIPHIER_RESETX(8, 0x2000, 10), /* STDMAC (HSC, RLE) */ UNIPHIER_RESETX(14, 0x2000, 17), /* USB30 */ UNIPHIER_RESETX(15, 0x2004, 17), /* USB31 */ UNIPHIER_RESETX(16, 0x2014, 4), /* USB30-PHY0 */ UNIPHIER_RESETX(17, 0x2014, 0), /* USB30-PHY1 */ UNIPHIER_RESETX(18, 0x2014, 2), /* USB30-PHY2 */ UNIPHIER_RESETX(20, 0x2014, 5), /* USB31-PHY0 */ UNIPHIER_RESETX(21, 0x2014, 1), /* USB31-PHY1 */ UNIPHIER_RESETX(28, 0x2014, 12), /* SATA */ UNIPHIER_RESET(30, 0x2014, 8), /* SATA-PHY (active high) */ UNIPHIER_RESETX(40, 0x2000, 13), /* AIO */ UNIPHIER_RESET_END, }; static const struct uniphier_reset_data uniphier_ld11_sys_reset_data[] = { UNIPHIER_RESETX(2, 0x200c, 0), /* NAND */ UNIPHIER_RESETX(4, 0x200c, 2), /* eMMC */ UNIPHIER_RESETX(6, 0x200c, 6), /* Ether */ UNIPHIER_RESETX(8, 0x200c, 8), /* STDMAC (HSC, MIO) */ UNIPHIER_RESETX(9, 0x200c, 9), /* HSC */ UNIPHIER_RESETX(40, 0x2008, 0), /* AIO */ UNIPHIER_RESETX(41, 0x2008, 1), /* EVEA */ UNIPHIER_RESETX(42, 0x2010, 2), /* EXIV */ UNIPHIER_RESET_END, }; static const struct uniphier_reset_data uniphier_ld20_sys_reset_data[] = { UNIPHIER_RESETX(2, 0x200c, 0), /* NAND */ UNIPHIER_RESETX(4, 0x200c, 2), /* eMMC */ UNIPHIER_RESETX(6, 0x200c, 6), /* Ether */ UNIPHIER_RESETX(8, 0x200c, 8), /* STDMAC (HSC) */ UNIPHIER_RESETX(9, 0x200c, 9), /* HSC */ UNIPHIER_RESETX(14, 0x200c, 5), /* USB30 */ UNIPHIER_RESETX(16, 0x200c, 12), /* USB30-PHY0 */ UNIPHIER_RESETX(17, 0x200c, 13), /* USB30-PHY1 */ UNIPHIER_RESETX(18, 0x200c, 14), /* USB30-PHY2 */ UNIPHIER_RESETX(19, 0x200c, 15), /* USB30-PHY3 */ UNIPHIER_RESETX(24, 0x200c, 4), /* PCIe */ UNIPHIER_RESETX(40, 0x2008, 0), /* AIO */ UNIPHIER_RESETX(41, 0x2008, 1), /* EVEA */ UNIPHIER_RESETX(42, 0x2010, 2), /* EXIV */ UNIPHIER_RESET_END, }; static const struct uniphier_reset_data uniphier_pxs3_sys_reset_data[] = { UNIPHIER_RESETX(2, 0x200c, 0), /* NAND */ UNIPHIER_RESETX(4, 0x200c, 2), /* eMMC */ UNIPHIER_RESETX(6, 0x200c, 9), /* Ether0 */ UNIPHIER_RESETX(7, 0x200c, 10), /* Ether1 */ UNIPHIER_RESETX(8, 0x200c, 12), /* STDMAC */ UNIPHIER_RESETX(12, 0x200c, 4), /* USB30 link */ UNIPHIER_RESETX(13, 0x200c, 5), /* USB31 link */ UNIPHIER_RESETX(16, 0x200c, 16), /* USB30-PHY0 */ UNIPHIER_RESETX(17, 0x200c, 18), /* USB30-PHY1 */ UNIPHIER_RESETX(18, 0x200c, 20), /* USB30-PHY2 */ UNIPHIER_RESETX(20, 0x200c, 17), /* USB31-PHY0 */ UNIPHIER_RESETX(21, 0x200c, 19), /* USB31-PHY1 */ UNIPHIER_RESETX(24, 0x200c, 3), /* PCIe */ UNIPHIER_RESETX(28, 0x200c, 7), /* SATA0 */ UNIPHIER_RESETX(29, 0x200c, 8), /* SATA1 */ UNIPHIER_RESETX(30, 0x200c, 21), /* SATA-PHY */ UNIPHIER_RESET_END, }; /* Media I/O reset data */ #define UNIPHIER_MIO_RESET_SD(id, ch) \ UNIPHIER_RESETX((id), 0x110 + 0x200 * (ch), 0) #define UNIPHIER_MIO_RESET_SD_BRIDGE(id, ch) \ UNIPHIER_RESETX((id), 0x110 + 0x200 * (ch), 26) #define UNIPHIER_MIO_RESET_EMMC_HW_RESET(id, ch) \ UNIPHIER_RESETX((id), 0x80 + 0x200 * (ch), 0) #define UNIPHIER_MIO_RESET_USB2(id, ch) \ UNIPHIER_RESETX((id), 0x114 + 0x200 * (ch), 0) #define UNIPHIER_MIO_RESET_USB2_BRIDGE(id, ch) \ UNIPHIER_RESETX((id), 0x110 + 0x200 * (ch), 24) #define UNIPHIER_MIO_RESET_DMAC(id) \ UNIPHIER_RESETX((id), 0x110, 17) static const struct uniphier_reset_data uniphier_ld4_mio_reset_data[] = { UNIPHIER_MIO_RESET_SD(0, 0), UNIPHIER_MIO_RESET_SD(1, 1), UNIPHIER_MIO_RESET_SD(2, 2), UNIPHIER_MIO_RESET_SD_BRIDGE(3, 0), UNIPHIER_MIO_RESET_SD_BRIDGE(4, 1), UNIPHIER_MIO_RESET_SD_BRIDGE(5, 2), UNIPHIER_MIO_RESET_EMMC_HW_RESET(6, 1), UNIPHIER_MIO_RESET_DMAC(7), UNIPHIER_MIO_RESET_USB2(8, 0), UNIPHIER_MIO_RESET_USB2(9, 1), UNIPHIER_MIO_RESET_USB2(10, 2), UNIPHIER_MIO_RESET_USB2_BRIDGE(12, 0), UNIPHIER_MIO_RESET_USB2_BRIDGE(13, 1), UNIPHIER_MIO_RESET_USB2_BRIDGE(14, 2), UNIPHIER_RESET_END, }; static const struct uniphier_reset_data uniphier_pro5_sd_reset_data[] = { UNIPHIER_MIO_RESET_SD(0, 0), UNIPHIER_MIO_RESET_SD(1, 1), UNIPHIER_MIO_RESET_EMMC_HW_RESET(6, 1), UNIPHIER_RESET_END, }; /* Peripheral reset data */ #define UNIPHIER_PERI_RESET_UART(id, ch) \ UNIPHIER_RESETX((id), 0x114, 19 + (ch)) #define UNIPHIER_PERI_RESET_I2C(id, ch) \ UNIPHIER_RESETX((id), 0x114, 5 + (ch)) #define UNIPHIER_PERI_RESET_FI2C(id, ch) \ UNIPHIER_RESETX((id), 0x114, 24 + (ch)) #define UNIPHIER_PERI_RESET_SCSSI(id) \ UNIPHIER_RESETX((id), 0x110, 17) #define UNIPHIER_PERI_RESET_MCSSI(id) \ UNIPHIER_RESETX((id), 0x114, 14) static const struct uniphier_reset_data uniphier_ld4_peri_reset_data[] = { UNIPHIER_PERI_RESET_UART(0, 0), UNIPHIER_PERI_RESET_UART(1, 1), UNIPHIER_PERI_RESET_UART(2, 2), UNIPHIER_PERI_RESET_UART(3, 3), UNIPHIER_PERI_RESET_I2C(4, 0), UNIPHIER_PERI_RESET_I2C(5, 1), UNIPHIER_PERI_RESET_I2C(6, 2), UNIPHIER_PERI_RESET_I2C(7, 3), UNIPHIER_PERI_RESET_I2C(8, 4), UNIPHIER_PERI_RESET_SCSSI(11), UNIPHIER_RESET_END, }; static const struct uniphier_reset_data uniphier_pro4_peri_reset_data[] = { UNIPHIER_PERI_RESET_UART(0, 0), UNIPHIER_PERI_RESET_UART(1, 1), UNIPHIER_PERI_RESET_UART(2, 2), UNIPHIER_PERI_RESET_UART(3, 3), UNIPHIER_PERI_RESET_FI2C(4, 0), UNIPHIER_PERI_RESET_FI2C(5, 1), UNIPHIER_PERI_RESET_FI2C(6, 2), UNIPHIER_PERI_RESET_FI2C(7, 3), UNIPHIER_PERI_RESET_FI2C(8, 4), UNIPHIER_PERI_RESET_FI2C(9, 5), UNIPHIER_PERI_RESET_FI2C(10, 6), UNIPHIER_PERI_RESET_SCSSI(11), UNIPHIER_PERI_RESET_MCSSI(12), UNIPHIER_RESET_END, }; /* Analog signal amplifiers reset data */ static const struct uniphier_reset_data uniphier_ld11_adamv_reset_data[] = { UNIPHIER_RESETX(0, 0x10, 6), /* EVEA */ UNIPHIER_RESET_END, }; /* core implementaton */ struct uniphier_reset_priv { struct reset_controller_dev rcdev; struct device *dev; struct regmap *regmap; const struct uniphier_reset_data *data; }; #define to_uniphier_reset_priv(_rcdev) \ container_of(_rcdev, struct uniphier_reset_priv, rcdev) static int uniphier_reset_update(struct reset_controller_dev *rcdev, unsigned long id, int assert) { struct uniphier_reset_priv *priv = to_uniphier_reset_priv(rcdev); const struct uniphier_reset_data *p; for (p = priv->data; p->id != UNIPHIER_RESET_ID_END; p++) { unsigned int mask, val; if (p->id != id) continue; mask = BIT(p->bit); if (assert) val = mask; else val = ~mask; if (p->flags & UNIPHIER_RESET_ACTIVE_LOW) val = ~val; return regmap_write_bits(priv->regmap, p->reg, mask, val); } dev_err(priv->dev, "reset_id=%lu was not handled\n", id); return -EINVAL; } static int uniphier_reset_assert(struct reset_controller_dev *rcdev, unsigned long id) { return uniphier_reset_update(rcdev, id, 1); } static int uniphier_reset_deassert(struct reset_controller_dev *rcdev, unsigned long id) { return uniphier_reset_update(rcdev, id, 0); } static int uniphier_reset_status(struct reset_controller_dev *rcdev, unsigned long id) { struct uniphier_reset_priv *priv = to_uniphier_reset_priv(rcdev); const struct uniphier_reset_data *p; for (p = priv->data; p->id != UNIPHIER_RESET_ID_END; p++) { unsigned int val; int ret, asserted; if (p->id != id) continue; ret = regmap_read(priv->regmap, p->reg, &val); if (ret) return ret; asserted = !!(val & BIT(p->bit)); if (p->flags & UNIPHIER_RESET_ACTIVE_LOW) asserted = !asserted; return asserted; } dev_err(priv->dev, "reset_id=%lu was not found\n", id); return -EINVAL; } static const struct reset_control_ops uniphier_reset_ops = { .assert = uniphier_reset_assert, .deassert = uniphier_reset_deassert, .status = uniphier_reset_status, }; static int uniphier_reset_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; struct uniphier_reset_priv *priv; const struct uniphier_reset_data *p, *data; struct regmap *regmap; struct device_node *parent; unsigned int nr_resets = 0; data = of_device_get_match_data(dev); if (WARN_ON(!data)) return -EINVAL; parent = of_get_parent(dev->of_node); /* parent should be syscon node */ regmap = syscon_node_to_regmap(parent); of_node_put(parent); if (IS_ERR(regmap)) { dev_err(dev, "failed to get regmap (error %ld)\n", PTR_ERR(regmap)); return PTR_ERR(regmap); } priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); if (!priv) return -ENOMEM; for (p = data; p->id != UNIPHIER_RESET_ID_END; p++) nr_resets = max(nr_resets, p->id + 1); priv->rcdev.ops = &uniphier_reset_ops; priv->rcdev.owner = dev->driver->owner; priv->rcdev.of_node = dev->of_node; priv->rcdev.nr_resets = nr_resets; priv->dev = dev; priv->regmap = regmap; priv->data = data; return devm_reset_controller_register(&pdev->dev, &priv->rcdev); } static const struct of_device_id uniphier_reset_match[] = { /* System reset */ { .compatible = "socionext,uniphier-ld4-reset", .data = uniphier_ld4_sys_reset_data, }, { .compatible = "socionext,uniphier-pro4-reset", .data = uniphier_pro4_sys_reset_data, }, { .compatible = "socionext,uniphier-sld8-reset", .data = uniphier_ld4_sys_reset_data, }, { .compatible = "socionext,uniphier-pro5-reset", .data = uniphier_pro5_sys_reset_data, }, { .compatible = "socionext,uniphier-pxs2-reset", .data = uniphier_pxs2_sys_reset_data, }, { .compatible = "socionext,uniphier-ld11-reset", .data = uniphier_ld11_sys_reset_data, }, { .compatible = "socionext,uniphier-ld20-reset", .data = uniphier_ld20_sys_reset_data, }, { .compatible = "socionext,uniphier-pxs3-reset", .data = uniphier_pxs3_sys_reset_data, }, /* Media I/O reset, SD reset */ { .compatible = "socionext,uniphier-ld4-mio-reset", .data = uniphier_ld4_mio_reset_data, }, { .compatible = "socionext,uniphier-pro4-mio-reset", .data = uniphier_ld4_mio_reset_data, }, { .compatible = "socionext,uniphier-sld8-mio-reset", .data = uniphier_ld4_mio_reset_data, }, { .compatible = "socionext,uniphier-pro5-sd-reset", .data = uniphier_pro5_sd_reset_data, }, { .compatible = "socionext,uniphier-pxs2-sd-reset", .data = uniphier_pro5_sd_reset_data, }, { .compatible = "socionext,uniphier-ld11-mio-reset", .data = uniphier_ld4_mio_reset_data, }, { .compatible = "socionext,uniphier-ld11-sd-reset", .data = uniphier_pro5_sd_reset_data, }, { .compatible = "socionext,uniphier-ld20-sd-reset", .data = uniphier_pro5_sd_reset_data, }, { .compatible = "socionext,uniphier-pxs3-sd-reset", .data = uniphier_pro5_sd_reset_data, }, /* Peripheral reset */ { .compatible = "socionext,uniphier-ld4-peri-reset", .data = uniphier_ld4_peri_reset_data, }, { .compatible = "socionext,uniphier-pro4-peri-reset", .data = uniphier_pro4_peri_reset_data, }, { .compatible = "socionext,uniphier-sld8-peri-reset", .data = uniphier_ld4_peri_reset_data, }, { .compatible = "socionext,uniphier-pro5-peri-reset", .data = uniphier_pro4_peri_reset_data, }, { .compatible = "socionext,uniphier-pxs2-peri-reset", .data = uniphier_pro4_peri_reset_data, }, { .compatible = "socionext,uniphier-ld11-peri-reset", .data = uniphier_pro4_peri_reset_data, }, { .compatible = "socionext,uniphier-ld20-peri-reset", .data = uniphier_pro4_peri_reset_data, }, { .compatible = "socionext,uniphier-pxs3-peri-reset", .data = uniphier_pro4_peri_reset_data, }, /* Analog signal amplifiers reset */ { .compatible = "socionext,uniphier-ld11-adamv-reset", .data = uniphier_ld11_adamv_reset_data, }, { .compatible = "socionext,uniphier-ld20-adamv-reset", .data = uniphier_ld11_adamv_reset_data, }, { /* sentinel */ } }; MODULE_DEVICE_TABLE(of, uniphier_reset_match); static struct platform_driver uniphier_reset_driver = { .probe = uniphier_reset_probe, .driver = { .name = "uniphier-reset", .of_match_table = uniphier_reset_match, }, }; module_platform_driver(uniphier_reset_driver); MODULE_AUTHOR("Masahiro Yamada <yamada.masahiro@socionext.com>"); MODULE_DESCRIPTION("UniPhier Reset Controller Driver"); MODULE_LICENSE("GPL");
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