mirror of
				https://github.com/torvalds/linux.git
				synced 2025-11-04 10:40:15 +02:00 
			
		
		
		
	Various driver updates for platforms. A bulk of this is smaller fixes or cleanups, but some of the new material this time around is: - Support for Nvidia Tegra234 SoC - Ring accelerator support for TI AM65x - PRUSS driver for TI platforms - Renesas support for R-Car V3U SoC - Reset support for Cortex-M4 processor on i.MX8MQ There are also new socinfo entries for a handful of different SoCs and platforms. -----BEGIN PGP SIGNATURE----- iQJDBAABCgAtFiEElf+HevZ4QCAJmMQ+jBrnPN6EHHcFAl+TUboPHG9sb2ZAbGl4 b20ubmV0AAoJEIwa5zzehBx3T4YP/R5pjF2C1gt8FrCaG4IfhIY1VHWelfPcB5qB RC7Pn4MCRCEY+10YPXA70oS6KBaC+gtZ4bPeInzfLXh1ynFJJb+XtAIxoRhnkEw+ /R979wNcIls9JqkvnHWFx29Y008W2ZNcXVNKH7O2Gxy+eKzDcTMsoH/zj8xWrV5b +eBllTzGU4RArYRJdcwOBQwMO6L2pzADHZ7hGMAY//8fo+qrxg8b9EINsH1UHCa8 gQdWdVlmv6GeLB6RYLRBCWxpW4jOLDqEAvyDV84QQmYHvzD9tqJExNR0hfGTs4TU TZWK7LWSNqF0ujQUbFh9Ikcx6DypU1gvE7LKhCDrf4D7HLRX5v4BjGH+xtVtjsyD xzh4WEoa3qCNu1mxQjKG8Y6U7bB9cRI2TPVxbbmI4ZuF0njvybecwwOZUBQl4aD4 5x+Df3pO/E5ECLOBeTnLgvw20fcjHv4HP8l63B6ADb31FUiZrJXItvayY5qXWe+P HSgUykmVA4nd4PnLsSj9seyWqOTIqUZ3U3TsmfxIQh2Otie01okwuHb1J7ErO/u0 W148SgSwVbnkPxjbBHKGgC2r+Q/AjSDGRBYL0ThIVFUztxTBBwhj3FIvMnyyxTIj yFBY14KQ8FcNUs8DrbPCaAx/RDCB02IHdvvIlyTmU3RBq7UhJVIglpLzzo2ed9F2 5u/aVH3y =tfPb -----END PGP SIGNATURE----- Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc Pull ARM SoC-related driver updates from Olof Johansson: "Various driver updates for platforms. A bulk of this is smaller fixes or cleanups, but some of the new material this time around is: - Support for Nvidia Tegra234 SoC - Ring accelerator support for TI AM65x - PRUSS driver for TI platforms - Renesas support for R-Car V3U SoC - Reset support for Cortex-M4 processor on i.MX8MQ There are also new socinfo entries for a handful of different SoCs and platforms" * tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (131 commits) drm/mediatek: reduce clear event soc: mediatek: cmdq: add clear option in cmdq_pkt_wfe api soc: mediatek: cmdq: add jump function soc: mediatek: cmdq: add write_s_mask value function soc: mediatek: cmdq: add write_s value function soc: mediatek: cmdq: add read_s function soc: mediatek: cmdq: add write_s_mask function soc: mediatek: cmdq: add write_s function soc: mediatek: cmdq: add address shift in jump soc: mediatek: mtk-infracfg: Fix kerneldoc soc: amlogic: pm-domains: use always-on flag reset: sti: reset-syscfg: fix struct description warnings reset: imx7: add the cm4 reset for i.MX8MQ dt-bindings: reset: imx8mq: add m4 reset reset: Fix and extend kerneldoc reset: reset-zynqmp: Added support for Versal platform dt-bindings: reset: Updated binding for Versal reset driver reset: imx7: Support module build soc: fsl: qe: Remove unnessesary check in ucc_set_tdm_rxtx_clk soc: fsl: qman: convert to use be32_add_cpu() ...
		
			
				
	
	
		
			406 lines
		
	
	
	
		
			14 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			406 lines
		
	
	
	
		
			14 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
// SPDX-License-Identifier: GPL-2.0-only
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/*
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 * Copyright (c) 2017, Impinj, Inc.
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 *
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 * i.MX7 System Reset Controller (SRC) driver
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 *
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 * Author: Andrey Smirnov <andrew.smirnov@gmail.com>
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 */
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#include <linux/mfd/syscon.h>
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#include <linux/module.h>
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#include <linux/of_device.h>
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#include <linux/platform_device.h>
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#include <linux/reset-controller.h>
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#include <linux/regmap.h>
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#include <dt-bindings/reset/imx7-reset.h>
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#include <dt-bindings/reset/imx8mq-reset.h>
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#include <dt-bindings/reset/imx8mp-reset.h>
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struct imx7_src_signal {
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	unsigned int offset, bit;
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};
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struct imx7_src_variant {
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	const struct imx7_src_signal *signals;
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	unsigned int signals_num;
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	struct reset_control_ops ops;
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};
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struct imx7_src {
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	struct reset_controller_dev rcdev;
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	struct regmap *regmap;
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	const struct imx7_src_signal *signals;
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};
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enum imx7_src_registers {
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	SRC_A7RCR0		= 0x0004,
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	SRC_M4RCR		= 0x000c,
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	SRC_ERCR		= 0x0014,
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	SRC_HSICPHY_RCR		= 0x001c,
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	SRC_USBOPHY1_RCR	= 0x0020,
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	SRC_USBOPHY2_RCR	= 0x0024,
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	SRC_MIPIPHY_RCR		= 0x0028,
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	SRC_PCIEPHY_RCR		= 0x002c,
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	SRC_DDRC_RCR		= 0x1000,
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};
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static int imx7_reset_update(struct imx7_src *imx7src,
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			     unsigned long id, unsigned int value)
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{
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	const struct imx7_src_signal *signal = &imx7src->signals[id];
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	return regmap_update_bits(imx7src->regmap,
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				  signal->offset, signal->bit, value);
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}
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static const struct imx7_src_signal imx7_src_signals[IMX7_RESET_NUM] = {
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	[IMX7_RESET_A7_CORE_POR_RESET0] = { SRC_A7RCR0, BIT(0) },
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	[IMX7_RESET_A7_CORE_POR_RESET1] = { SRC_A7RCR0, BIT(1) },
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	[IMX7_RESET_A7_CORE_RESET0]     = { SRC_A7RCR0, BIT(4) },
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	[IMX7_RESET_A7_CORE_RESET1]	= { SRC_A7RCR0, BIT(5) },
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	[IMX7_RESET_A7_DBG_RESET0]	= { SRC_A7RCR0, BIT(8) },
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	[IMX7_RESET_A7_DBG_RESET1]	= { SRC_A7RCR0, BIT(9) },
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	[IMX7_RESET_A7_ETM_RESET0]	= { SRC_A7RCR0, BIT(12) },
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	[IMX7_RESET_A7_ETM_RESET1]	= { SRC_A7RCR0, BIT(13) },
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	[IMX7_RESET_A7_SOC_DBG_RESET]	= { SRC_A7RCR0, BIT(20) },
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	[IMX7_RESET_A7_L2RESET]		= { SRC_A7RCR0, BIT(21) },
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	[IMX7_RESET_SW_M4C_RST]		= { SRC_M4RCR, BIT(1) },
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	[IMX7_RESET_SW_M4P_RST]		= { SRC_M4RCR, BIT(2) },
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	[IMX7_RESET_EIM_RST]		= { SRC_ERCR, BIT(0) },
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	[IMX7_RESET_HSICPHY_PORT_RST]	= { SRC_HSICPHY_RCR, BIT(1) },
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	[IMX7_RESET_USBPHY1_POR]	= { SRC_USBOPHY1_RCR, BIT(0) },
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	[IMX7_RESET_USBPHY1_PORT_RST]	= { SRC_USBOPHY1_RCR, BIT(1) },
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	[IMX7_RESET_USBPHY2_POR]	= { SRC_USBOPHY2_RCR, BIT(0) },
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	[IMX7_RESET_USBPHY2_PORT_RST]	= { SRC_USBOPHY2_RCR, BIT(1) },
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	[IMX7_RESET_MIPI_PHY_MRST]	= { SRC_MIPIPHY_RCR, BIT(1) },
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	[IMX7_RESET_MIPI_PHY_SRST]	= { SRC_MIPIPHY_RCR, BIT(2) },
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	[IMX7_RESET_PCIEPHY]		= { SRC_PCIEPHY_RCR, BIT(2) | BIT(1) },
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	[IMX7_RESET_PCIEPHY_PERST]	= { SRC_PCIEPHY_RCR, BIT(3) },
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	[IMX7_RESET_PCIE_CTRL_APPS_EN]	= { SRC_PCIEPHY_RCR, BIT(6) },
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	[IMX7_RESET_PCIE_CTRL_APPS_TURNOFF] = { SRC_PCIEPHY_RCR, BIT(11) },
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	[IMX7_RESET_DDRC_PRST]		= { SRC_DDRC_RCR, BIT(0) },
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	[IMX7_RESET_DDRC_CORE_RST]	= { SRC_DDRC_RCR, BIT(1) },
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};
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static struct imx7_src *to_imx7_src(struct reset_controller_dev *rcdev)
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{
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	return container_of(rcdev, struct imx7_src, rcdev);
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}
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static int imx7_reset_set(struct reset_controller_dev *rcdev,
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			  unsigned long id, bool assert)
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{
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	struct imx7_src *imx7src = to_imx7_src(rcdev);
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	const unsigned int bit = imx7src->signals[id].bit;
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	unsigned int value = assert ? bit : 0;
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	switch (id) {
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	case IMX7_RESET_PCIEPHY:
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		/*
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		 * wait for more than 10us to release phy g_rst and
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		 * btnrst
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		 */
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		if (!assert)
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			udelay(10);
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		break;
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	case IMX7_RESET_PCIE_CTRL_APPS_EN:
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		value = assert ? 0 : bit;
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		break;
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	}
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	return imx7_reset_update(imx7src, id, value);
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}
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static int imx7_reset_assert(struct reset_controller_dev *rcdev,
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			     unsigned long id)
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{
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	return imx7_reset_set(rcdev, id, true);
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}
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static int imx7_reset_deassert(struct reset_controller_dev *rcdev,
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			       unsigned long id)
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{
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	return imx7_reset_set(rcdev, id, false);
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}
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static const struct imx7_src_variant variant_imx7 = {
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	.signals = imx7_src_signals,
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	.signals_num = ARRAY_SIZE(imx7_src_signals),
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	.ops = {
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		.assert   = imx7_reset_assert,
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		.deassert = imx7_reset_deassert,
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	},
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};
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enum imx8mq_src_registers {
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	SRC_A53RCR0		= 0x0004,
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	SRC_HDMI_RCR		= 0x0030,
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	SRC_DISP_RCR		= 0x0034,
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	SRC_GPU_RCR		= 0x0040,
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	SRC_VPU_RCR		= 0x0044,
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	SRC_PCIE2_RCR		= 0x0048,
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	SRC_MIPIPHY1_RCR	= 0x004c,
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	SRC_MIPIPHY2_RCR	= 0x0050,
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	SRC_DDRC2_RCR		= 0x1004,
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};
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enum imx8mp_src_registers {
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	SRC_SUPERMIX_RCR	= 0x0018,
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	SRC_AUDIOMIX_RCR	= 0x001c,
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	SRC_MLMIX_RCR		= 0x0028,
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	SRC_GPU2D_RCR		= 0x0038,
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	SRC_GPU3D_RCR		= 0x003c,
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	SRC_VPU_G1_RCR		= 0x0048,
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	SRC_VPU_G2_RCR		= 0x004c,
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	SRC_VPUVC8KE_RCR	= 0x0050,
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	SRC_NOC_RCR		= 0x0054,
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};
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static const struct imx7_src_signal imx8mq_src_signals[IMX8MQ_RESET_NUM] = {
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	[IMX8MQ_RESET_A53_CORE_POR_RESET0]	= { SRC_A53RCR0, BIT(0) },
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	[IMX8MQ_RESET_A53_CORE_POR_RESET1]	= { SRC_A53RCR0, BIT(1) },
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	[IMX8MQ_RESET_A53_CORE_POR_RESET2]	= { SRC_A53RCR0, BIT(2) },
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	[IMX8MQ_RESET_A53_CORE_POR_RESET3]	= { SRC_A53RCR0, BIT(3) },
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	[IMX8MQ_RESET_A53_CORE_RESET0]		= { SRC_A53RCR0, BIT(4) },
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	[IMX8MQ_RESET_A53_CORE_RESET1]		= { SRC_A53RCR0, BIT(5) },
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	[IMX8MQ_RESET_A53_CORE_RESET2]		= { SRC_A53RCR0, BIT(6) },
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	[IMX8MQ_RESET_A53_CORE_RESET3]		= { SRC_A53RCR0, BIT(7) },
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	[IMX8MQ_RESET_A53_DBG_RESET0]		= { SRC_A53RCR0, BIT(8) },
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	[IMX8MQ_RESET_A53_DBG_RESET1]		= { SRC_A53RCR0, BIT(9) },
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	[IMX8MQ_RESET_A53_DBG_RESET2]		= { SRC_A53RCR0, BIT(10) },
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	[IMX8MQ_RESET_A53_DBG_RESET3]		= { SRC_A53RCR0, BIT(11) },
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	[IMX8MQ_RESET_A53_ETM_RESET0]		= { SRC_A53RCR0, BIT(12) },
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	[IMX8MQ_RESET_A53_ETM_RESET1]		= { SRC_A53RCR0, BIT(13) },
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	[IMX8MQ_RESET_A53_ETM_RESET2]		= { SRC_A53RCR0, BIT(14) },
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	[IMX8MQ_RESET_A53_ETM_RESET3]		= { SRC_A53RCR0, BIT(15) },
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	[IMX8MQ_RESET_A53_SOC_DBG_RESET]	= { SRC_A53RCR0, BIT(20) },
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	[IMX8MQ_RESET_A53_L2RESET]		= { SRC_A53RCR0, BIT(21) },
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	[IMX8MQ_RESET_SW_NON_SCLR_M4C_RST]	= { SRC_M4RCR, BIT(0) },
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	[IMX8MQ_RESET_SW_M4C_RST]		= { SRC_M4RCR, BIT(1) },
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	[IMX8MQ_RESET_SW_M4P_RST]		= { SRC_M4RCR, BIT(2) },
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	[IMX8MQ_RESET_M4_ENABLE]		= { SRC_M4RCR, BIT(3) },
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	[IMX8MQ_RESET_OTG1_PHY_RESET]		= { SRC_USBOPHY1_RCR, BIT(0) },
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	[IMX8MQ_RESET_OTG2_PHY_RESET]		= { SRC_USBOPHY2_RCR, BIT(0) },
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	[IMX8MQ_RESET_MIPI_DSI_RESET_BYTE_N]	= { SRC_MIPIPHY_RCR, BIT(1) },
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	[IMX8MQ_RESET_MIPI_DSI_RESET_N]		= { SRC_MIPIPHY_RCR, BIT(2) },
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	[IMX8MQ_RESET_MIPI_DSI_DPI_RESET_N]	= { SRC_MIPIPHY_RCR, BIT(3) },
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	[IMX8MQ_RESET_MIPI_DSI_ESC_RESET_N]	= { SRC_MIPIPHY_RCR, BIT(4) },
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	[IMX8MQ_RESET_MIPI_DSI_PCLK_RESET_N]	= { SRC_MIPIPHY_RCR, BIT(5) },
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	[IMX8MQ_RESET_PCIEPHY]			= { SRC_PCIEPHY_RCR,
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						    BIT(2) | BIT(1) },
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	[IMX8MQ_RESET_PCIEPHY_PERST]		= { SRC_PCIEPHY_RCR, BIT(3) },
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	[IMX8MQ_RESET_PCIE_CTRL_APPS_EN]	= { SRC_PCIEPHY_RCR, BIT(6) },
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	[IMX8MQ_RESET_PCIE_CTRL_APPS_TURNOFF]	= { SRC_PCIEPHY_RCR, BIT(11) },
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	[IMX8MQ_RESET_HDMI_PHY_APB_RESET]	= { SRC_HDMI_RCR, BIT(0) },
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	[IMX8MQ_RESET_DISP_RESET]		= { SRC_DISP_RCR, BIT(0) },
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	[IMX8MQ_RESET_GPU_RESET]		= { SRC_GPU_RCR, BIT(0) },
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	[IMX8MQ_RESET_VPU_RESET]		= { SRC_VPU_RCR, BIT(0) },
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	[IMX8MQ_RESET_PCIEPHY2]			= { SRC_PCIE2_RCR,
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						    BIT(2) | BIT(1) },
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	[IMX8MQ_RESET_PCIEPHY2_PERST]		= { SRC_PCIE2_RCR, BIT(3) },
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	[IMX8MQ_RESET_PCIE2_CTRL_APPS_EN]	= { SRC_PCIE2_RCR, BIT(6) },
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	[IMX8MQ_RESET_PCIE2_CTRL_APPS_TURNOFF]	= { SRC_PCIE2_RCR, BIT(11) },
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	[IMX8MQ_RESET_MIPI_CSI1_CORE_RESET]	= { SRC_MIPIPHY1_RCR, BIT(0) },
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	[IMX8MQ_RESET_MIPI_CSI1_PHY_REF_RESET]	= { SRC_MIPIPHY1_RCR, BIT(1) },
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	[IMX8MQ_RESET_MIPI_CSI1_ESC_RESET]	= { SRC_MIPIPHY1_RCR, BIT(2) },
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	[IMX8MQ_RESET_MIPI_CSI2_CORE_RESET]	= { SRC_MIPIPHY2_RCR, BIT(0) },
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	[IMX8MQ_RESET_MIPI_CSI2_PHY_REF_RESET]	= { SRC_MIPIPHY2_RCR, BIT(1) },
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	[IMX8MQ_RESET_MIPI_CSI2_ESC_RESET]	= { SRC_MIPIPHY2_RCR, BIT(2) },
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	[IMX8MQ_RESET_DDRC1_PRST]		= { SRC_DDRC_RCR, BIT(0) },
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	[IMX8MQ_RESET_DDRC1_CORE_RESET]		= { SRC_DDRC_RCR, BIT(1) },
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	[IMX8MQ_RESET_DDRC1_PHY_RESET]		= { SRC_DDRC_RCR, BIT(2) },
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	[IMX8MQ_RESET_DDRC2_PHY_RESET]		= { SRC_DDRC2_RCR, BIT(0) },
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	[IMX8MQ_RESET_DDRC2_CORE_RESET]		= { SRC_DDRC2_RCR, BIT(1) },
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	[IMX8MQ_RESET_DDRC2_PRST]		= { SRC_DDRC2_RCR, BIT(2) },
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};
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static int imx8mq_reset_set(struct reset_controller_dev *rcdev,
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			    unsigned long id, bool assert)
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{
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	struct imx7_src *imx7src = to_imx7_src(rcdev);
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	const unsigned int bit = imx7src->signals[id].bit;
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	unsigned int value = assert ? bit : 0;
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	switch (id) {
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	case IMX8MQ_RESET_PCIEPHY:
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	case IMX8MQ_RESET_PCIEPHY2:
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		/*
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		 * wait for more than 10us to release phy g_rst and
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		 * btnrst
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		 */
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		if (!assert)
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			udelay(10);
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		break;
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	case IMX8MQ_RESET_PCIE_CTRL_APPS_EN:
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	case IMX8MQ_RESET_PCIE2_CTRL_APPS_EN:
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	case IMX8MQ_RESET_MIPI_DSI_PCLK_RESET_N:
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	case IMX8MQ_RESET_MIPI_DSI_ESC_RESET_N:
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	case IMX8MQ_RESET_MIPI_DSI_DPI_RESET_N:
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	case IMX8MQ_RESET_MIPI_DSI_RESET_N:
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	case IMX8MQ_RESET_MIPI_DSI_RESET_BYTE_N:
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						|
	case IMX8MQ_RESET_M4_ENABLE:
 | 
						|
		value = assert ? 0 : bit;
 | 
						|
		break;
 | 
						|
	}
 | 
						|
 | 
						|
	return imx7_reset_update(imx7src, id, value);
 | 
						|
}
 | 
						|
 | 
						|
static int imx8mq_reset_assert(struct reset_controller_dev *rcdev,
 | 
						|
			       unsigned long id)
 | 
						|
{
 | 
						|
	return imx8mq_reset_set(rcdev, id, true);
 | 
						|
}
 | 
						|
 | 
						|
static int imx8mq_reset_deassert(struct reset_controller_dev *rcdev,
 | 
						|
				 unsigned long id)
 | 
						|
{
 | 
						|
	return imx8mq_reset_set(rcdev, id, false);
 | 
						|
}
 | 
						|
 | 
						|
static const struct imx7_src_variant variant_imx8mq = {
 | 
						|
	.signals = imx8mq_src_signals,
 | 
						|
	.signals_num = ARRAY_SIZE(imx8mq_src_signals),
 | 
						|
	.ops = {
 | 
						|
		.assert   = imx8mq_reset_assert,
 | 
						|
		.deassert = imx8mq_reset_deassert,
 | 
						|
	},
 | 
						|
};
 | 
						|
 | 
						|
static const struct imx7_src_signal imx8mp_src_signals[IMX8MP_RESET_NUM] = {
 | 
						|
	[IMX8MP_RESET_A53_CORE_POR_RESET0]	= { SRC_A53RCR0, BIT(0) },
 | 
						|
	[IMX8MP_RESET_A53_CORE_POR_RESET1]	= { SRC_A53RCR0, BIT(1) },
 | 
						|
	[IMX8MP_RESET_A53_CORE_POR_RESET2]	= { SRC_A53RCR0, BIT(2) },
 | 
						|
	[IMX8MP_RESET_A53_CORE_POR_RESET3]	= { SRC_A53RCR0, BIT(3) },
 | 
						|
	[IMX8MP_RESET_A53_CORE_RESET0]		= { SRC_A53RCR0, BIT(4) },
 | 
						|
	[IMX8MP_RESET_A53_CORE_RESET1]		= { SRC_A53RCR0, BIT(5) },
 | 
						|
	[IMX8MP_RESET_A53_CORE_RESET2]		= { SRC_A53RCR0, BIT(6) },
 | 
						|
	[IMX8MP_RESET_A53_CORE_RESET3]		= { SRC_A53RCR0, BIT(7) },
 | 
						|
	[IMX8MP_RESET_A53_DBG_RESET0]		= { SRC_A53RCR0, BIT(8) },
 | 
						|
	[IMX8MP_RESET_A53_DBG_RESET1]		= { SRC_A53RCR0, BIT(9) },
 | 
						|
	[IMX8MP_RESET_A53_DBG_RESET2]		= { SRC_A53RCR0, BIT(10) },
 | 
						|
	[IMX8MP_RESET_A53_DBG_RESET3]		= { SRC_A53RCR0, BIT(11) },
 | 
						|
	[IMX8MP_RESET_A53_ETM_RESET0]		= { SRC_A53RCR0, BIT(12) },
 | 
						|
	[IMX8MP_RESET_A53_ETM_RESET1]		= { SRC_A53RCR0, BIT(13) },
 | 
						|
	[IMX8MP_RESET_A53_ETM_RESET2]		= { SRC_A53RCR0, BIT(14) },
 | 
						|
	[IMX8MP_RESET_A53_ETM_RESET3]		= { SRC_A53RCR0, BIT(15) },
 | 
						|
	[IMX8MP_RESET_A53_SOC_DBG_RESET]	= { SRC_A53RCR0, BIT(20) },
 | 
						|
	[IMX8MP_RESET_A53_L2RESET]		= { SRC_A53RCR0, BIT(21) },
 | 
						|
	[IMX8MP_RESET_SW_NON_SCLR_M7C_RST]	= { SRC_M4RCR, BIT(0) },
 | 
						|
	[IMX8MP_RESET_OTG1_PHY_RESET]		= { SRC_USBOPHY1_RCR, BIT(0) },
 | 
						|
	[IMX8MP_RESET_OTG2_PHY_RESET]		= { SRC_USBOPHY2_RCR, BIT(0) },
 | 
						|
	[IMX8MP_RESET_SUPERMIX_RESET]		= { SRC_SUPERMIX_RCR, BIT(0) },
 | 
						|
	[IMX8MP_RESET_AUDIOMIX_RESET]		= { SRC_AUDIOMIX_RCR, BIT(0) },
 | 
						|
	[IMX8MP_RESET_MLMIX_RESET]		= { SRC_MLMIX_RCR, BIT(0) },
 | 
						|
	[IMX8MP_RESET_PCIEPHY]			= { SRC_PCIEPHY_RCR, BIT(2) },
 | 
						|
	[IMX8MP_RESET_PCIEPHY_PERST]		= { SRC_PCIEPHY_RCR, BIT(3) },
 | 
						|
	[IMX8MP_RESET_PCIE_CTRL_APPS_EN]	= { SRC_PCIEPHY_RCR, BIT(6) },
 | 
						|
	[IMX8MP_RESET_PCIE_CTRL_APPS_TURNOFF]	= { SRC_PCIEPHY_RCR, BIT(11) },
 | 
						|
	[IMX8MP_RESET_HDMI_PHY_APB_RESET]	= { SRC_HDMI_RCR, BIT(0) },
 | 
						|
	[IMX8MP_RESET_MEDIA_RESET]		= { SRC_DISP_RCR, BIT(0) },
 | 
						|
	[IMX8MP_RESET_GPU2D_RESET]		= { SRC_GPU2D_RCR, BIT(0) },
 | 
						|
	[IMX8MP_RESET_GPU3D_RESET]		= { SRC_GPU3D_RCR, BIT(0) },
 | 
						|
	[IMX8MP_RESET_GPU_RESET]		= { SRC_GPU_RCR, BIT(0) },
 | 
						|
	[IMX8MP_RESET_VPU_RESET]		= { SRC_VPU_RCR, BIT(0) },
 | 
						|
	[IMX8MP_RESET_VPU_G1_RESET]		= { SRC_VPU_G1_RCR, BIT(0) },
 | 
						|
	[IMX8MP_RESET_VPU_G2_RESET]		= { SRC_VPU_G2_RCR, BIT(0) },
 | 
						|
	[IMX8MP_RESET_VPUVC8KE_RESET]		= { SRC_VPUVC8KE_RCR, BIT(0) },
 | 
						|
	[IMX8MP_RESET_NOC_RESET]		= { SRC_NOC_RCR, BIT(0) },
 | 
						|
};
 | 
						|
 | 
						|
static int imx8mp_reset_set(struct reset_controller_dev *rcdev,
 | 
						|
			    unsigned long id, bool assert)
 | 
						|
{
 | 
						|
	struct imx7_src *imx7src = to_imx7_src(rcdev);
 | 
						|
	const unsigned int bit = imx7src->signals[id].bit;
 | 
						|
	unsigned int value = assert ? bit : 0;
 | 
						|
 | 
						|
	switch (id) {
 | 
						|
	case IMX8MP_RESET_PCIEPHY:
 | 
						|
		/*
 | 
						|
		 * wait for more than 10us to release phy g_rst and
 | 
						|
		 * btnrst
 | 
						|
		 */
 | 
						|
		if (!assert)
 | 
						|
			udelay(10);
 | 
						|
		break;
 | 
						|
 | 
						|
	case IMX8MP_RESET_PCIE_CTRL_APPS_EN:
 | 
						|
		value = assert ? 0 : bit;
 | 
						|
		break;
 | 
						|
	}
 | 
						|
 | 
						|
	return imx7_reset_update(imx7src, id, value);
 | 
						|
}
 | 
						|
 | 
						|
static int imx8mp_reset_assert(struct reset_controller_dev *rcdev,
 | 
						|
			       unsigned long id)
 | 
						|
{
 | 
						|
	return imx8mp_reset_set(rcdev, id, true);
 | 
						|
}
 | 
						|
 | 
						|
static int imx8mp_reset_deassert(struct reset_controller_dev *rcdev,
 | 
						|
				 unsigned long id)
 | 
						|
{
 | 
						|
	return imx8mp_reset_set(rcdev, id, false);
 | 
						|
}
 | 
						|
 | 
						|
static const struct imx7_src_variant variant_imx8mp = {
 | 
						|
	.signals = imx8mp_src_signals,
 | 
						|
	.signals_num = ARRAY_SIZE(imx8mp_src_signals),
 | 
						|
	.ops = {
 | 
						|
		.assert   = imx8mp_reset_assert,
 | 
						|
		.deassert = imx8mp_reset_deassert,
 | 
						|
	},
 | 
						|
};
 | 
						|
 | 
						|
static int imx7_reset_probe(struct platform_device *pdev)
 | 
						|
{
 | 
						|
	struct imx7_src *imx7src;
 | 
						|
	struct device *dev = &pdev->dev;
 | 
						|
	struct regmap_config config = { .name = "src" };
 | 
						|
	const struct imx7_src_variant *variant = of_device_get_match_data(dev);
 | 
						|
 | 
						|
	imx7src = devm_kzalloc(dev, sizeof(*imx7src), GFP_KERNEL);
 | 
						|
	if (!imx7src)
 | 
						|
		return -ENOMEM;
 | 
						|
 | 
						|
	imx7src->signals = variant->signals;
 | 
						|
	imx7src->regmap = syscon_node_to_regmap(dev->of_node);
 | 
						|
	if (IS_ERR(imx7src->regmap)) {
 | 
						|
		dev_err(dev, "Unable to get imx7-src regmap");
 | 
						|
		return PTR_ERR(imx7src->regmap);
 | 
						|
	}
 | 
						|
	regmap_attach_dev(dev, imx7src->regmap, &config);
 | 
						|
 | 
						|
	imx7src->rcdev.owner     = THIS_MODULE;
 | 
						|
	imx7src->rcdev.nr_resets = variant->signals_num;
 | 
						|
	imx7src->rcdev.ops       = &variant->ops;
 | 
						|
	imx7src->rcdev.of_node   = dev->of_node;
 | 
						|
 | 
						|
	return devm_reset_controller_register(dev, &imx7src->rcdev);
 | 
						|
}
 | 
						|
 | 
						|
static const struct of_device_id imx7_reset_dt_ids[] = {
 | 
						|
	{ .compatible = "fsl,imx7d-src", .data = &variant_imx7 },
 | 
						|
	{ .compatible = "fsl,imx8mq-src", .data = &variant_imx8mq },
 | 
						|
	{ .compatible = "fsl,imx8mp-src", .data = &variant_imx8mp },
 | 
						|
	{ /* sentinel */ },
 | 
						|
};
 | 
						|
MODULE_DEVICE_TABLE(of, imx7_reset_dt_ids);
 | 
						|
 | 
						|
static struct platform_driver imx7_reset_driver = {
 | 
						|
	.probe	= imx7_reset_probe,
 | 
						|
	.driver = {
 | 
						|
		.name		= KBUILD_MODNAME,
 | 
						|
		.of_match_table	= imx7_reset_dt_ids,
 | 
						|
	},
 | 
						|
};
 | 
						|
module_platform_driver(imx7_reset_driver);
 | 
						|
 | 
						|
MODULE_AUTHOR("Andrey Smirnov <andrew.smirnov@gmail.com>");
 | 
						|
MODULE_DESCRIPTION("NXP i.MX7 reset driver");
 | 
						|
MODULE_LICENSE("GPL v2");
 |