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	- Select PCI Power Control Slot driver so slot voltage rails can be turned on/off if described in Root Port device tree node (Qiang Yu) - Parse only PCI bridge child nodes in device tree, skipping unrelated nodes such as OPP (Operating Performance Points), which caused probe failures (Krishna Chaitanya Chundru) - Add 8.0 GT/s and 32.0 GT/s equalization settings (Ziyue Zhang) - Fix typo in CURSOR macro names (Ziyue Zhang) - Consolidate Root Port 'phy' and 'reset' properties in struct qcom_pcie_port, regardless of whether we got them from the Root Port node or the host bridge node (Manivannan Sadhasivam) - Fetch and map the ELBI register space in the DWC core rather than in each driver individually (Krishna Chaitanya Chundru) - Enable ECAM mechanism in DWC core by setting up iATU with 'CFG Shift Feature' and use this in the qcom driver (Krishna Chaitanya Chundru) * pci/controller/qcom: PCI: dwc: Support ECAM mechanism by enabling iATU 'CFG Shift Feature' PCI: qcom: Prepare for the DWC ECAM enablement PCI: dwc: Prepare the driver for enabling ECAM mechanism using iATU 'CFG Shift Feature' PCI: dwc: Add support for ELBI resource mapping PCI: qcom: Move host bridge 'phy' and 'reset' pointers to struct qcom_pcie_port PCI: qcom: Fix macro typo for CURSOR PCI: qcom: Add equalization settings for 8.0 GT/s and 32.0 GT/s PCI: qcom: Restrict port parsing only to PCIe bridge child nodes PCI: qcom: Select PCI Power Control Slot driver
		
			
				
	
	
		
			967 lines
		
	
	
	
		
			28 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			967 lines
		
	
	
	
		
			28 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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 * Synopsys DesignWare PCIe host controller driver
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 *
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 * Copyright (C) 2013 Samsung Electronics Co., Ltd.
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 *		https://www.samsung.com
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 *
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 * Author: Jingoo Han <jg1.han@samsung.com>
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 */
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#ifndef _PCIE_DESIGNWARE_H
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#define _PCIE_DESIGNWARE_H
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#include <linux/bitfield.h>
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#include <linux/bitops.h>
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#include <linux/clk.h>
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#include <linux/dma-mapping.h>
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#include <linux/dma/edma.h>
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#include <linux/gpio/consumer.h>
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#include <linux/irq.h>
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#include <linux/msi.h>
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#include <linux/pci.h>
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#include <linux/pci-ecam.h>
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#include <linux/reset.h>
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#include <linux/pci-epc.h>
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#include <linux/pci-epf.h>
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#include "../../pci.h"
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/* DWC PCIe IP-core versions (native support since v4.70a) */
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#define DW_PCIE_VER_365A		0x3336352a
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#define DW_PCIE_VER_460A		0x3436302a
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#define DW_PCIE_VER_470A		0x3437302a
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#define DW_PCIE_VER_480A		0x3438302a
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#define DW_PCIE_VER_490A		0x3439302a
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#define DW_PCIE_VER_520A		0x3532302a
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#define DW_PCIE_VER_540A		0x3534302a
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#define __dw_pcie_ver_cmp(_pci, _ver, _op) \
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	((_pci)->version _op DW_PCIE_VER_ ## _ver)
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#define dw_pcie_ver_is(_pci, _ver) __dw_pcie_ver_cmp(_pci, _ver, ==)
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#define dw_pcie_ver_is_ge(_pci, _ver) __dw_pcie_ver_cmp(_pci, _ver, >=)
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#define dw_pcie_ver_type_is(_pci, _ver, _type) \
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	(__dw_pcie_ver_cmp(_pci, _ver, ==) && \
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	 __dw_pcie_ver_cmp(_pci, TYPE_ ## _type, ==))
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#define dw_pcie_ver_type_is_ge(_pci, _ver, _type) \
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	(__dw_pcie_ver_cmp(_pci, _ver, ==) && \
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	 __dw_pcie_ver_cmp(_pci, TYPE_ ## _type, >=))
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/* DWC PCIe controller capabilities */
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#define DW_PCIE_CAP_REQ_RES		0
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#define DW_PCIE_CAP_IATU_UNROLL		1
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#define DW_PCIE_CAP_CDM_CHECK		2
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#define dw_pcie_cap_is(_pci, _cap) \
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	test_bit(DW_PCIE_CAP_ ## _cap, &(_pci)->caps)
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#define dw_pcie_cap_set(_pci, _cap) \
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	set_bit(DW_PCIE_CAP_ ## _cap, &(_pci)->caps)
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/* Parameters for the waiting for iATU enabled routine */
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#define LINK_WAIT_MAX_IATU_RETRIES	5
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#define LINK_WAIT_IATU			9
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/* Synopsys-specific PCIe configuration registers */
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#define PCIE_PORT_FORCE			0x708
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#define PORT_FORCE_DO_DESKEW_FOR_SRIS	BIT(23)
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#define PCIE_PORT_AFR			0x70C
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#define PORT_AFR_N_FTS_MASK		GENMASK(15, 8)
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#define PORT_AFR_N_FTS(n)		FIELD_PREP(PORT_AFR_N_FTS_MASK, n)
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#define PORT_AFR_CC_N_FTS_MASK		GENMASK(23, 16)
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#define PORT_AFR_CC_N_FTS(n)		FIELD_PREP(PORT_AFR_CC_N_FTS_MASK, n)
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#define PORT_AFR_ENTER_ASPM		BIT(30)
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#define PORT_AFR_L0S_ENTRANCE_LAT_SHIFT	24
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#define PORT_AFR_L0S_ENTRANCE_LAT_MASK	GENMASK(26, 24)
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#define PORT_AFR_L1_ENTRANCE_LAT_SHIFT	27
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#define PORT_AFR_L1_ENTRANCE_LAT_MASK	GENMASK(29, 27)
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#define PCIE_PORT_LINK_CONTROL		0x710
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#define PORT_LINK_DLL_LINK_EN		BIT(5)
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#define PORT_LINK_FAST_LINK_MODE	BIT(7)
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#define PORT_LINK_MODE_MASK		GENMASK(21, 16)
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#define PORT_LINK_MODE(n)		FIELD_PREP(PORT_LINK_MODE_MASK, n)
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#define PORT_LINK_MODE_1_LANES		PORT_LINK_MODE(0x1)
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#define PORT_LINK_MODE_2_LANES		PORT_LINK_MODE(0x3)
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#define PORT_LINK_MODE_4_LANES		PORT_LINK_MODE(0x7)
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#define PORT_LINK_MODE_8_LANES		PORT_LINK_MODE(0xf)
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#define PORT_LINK_MODE_16_LANES		PORT_LINK_MODE(0x1f)
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#define PCIE_PORT_LANE_SKEW		0x714
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#define PORT_LANE_SKEW_INSERT_MASK	GENMASK(23, 0)
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#define PCIE_PORT_DEBUG0		0x728
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#define PORT_LOGIC_LTSSM_STATE_MASK	0x1f
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#define PORT_LOGIC_LTSSM_STATE_L0	0x11
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#define PCIE_PORT_DEBUG1		0x72C
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#define PCIE_PORT_DEBUG1_LINK_UP		BIT(4)
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#define PCIE_PORT_DEBUG1_LINK_IN_TRAINING	BIT(29)
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#define PCIE_LINK_WIDTH_SPEED_CONTROL	0x80C
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#define PORT_LOGIC_N_FTS_MASK		GENMASK(7, 0)
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#define PORT_LOGIC_SPEED_CHANGE		BIT(17)
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#define PORT_LOGIC_LINK_WIDTH_MASK	GENMASK(12, 8)
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#define PORT_LOGIC_LINK_WIDTH(n)	FIELD_PREP(PORT_LOGIC_LINK_WIDTH_MASK, n)
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#define PORT_LOGIC_LINK_WIDTH_1_LANES	PORT_LOGIC_LINK_WIDTH(0x1)
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#define PORT_LOGIC_LINK_WIDTH_2_LANES	PORT_LOGIC_LINK_WIDTH(0x2)
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#define PORT_LOGIC_LINK_WIDTH_4_LANES	PORT_LOGIC_LINK_WIDTH(0x4)
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#define PORT_LOGIC_LINK_WIDTH_8_LANES	PORT_LOGIC_LINK_WIDTH(0x8)
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#define PCIE_MSI_ADDR_LO		0x820
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#define PCIE_MSI_ADDR_HI		0x824
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#define PCIE_MSI_INTR0_ENABLE		0x828
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#define PCIE_MSI_INTR0_MASK		0x82C
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#define PCIE_MSI_INTR0_STATUS		0x830
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#define GEN3_RELATED_OFF			0x890
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#define GEN3_RELATED_OFF_GEN3_ZRXDC_NONCOMPL	BIT(0)
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#define GEN3_RELATED_OFF_RXEQ_RGRDLESS_RXTS	BIT(13)
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#define GEN3_RELATED_OFF_GEN3_EQ_DISABLE	BIT(16)
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#define GEN3_RELATED_OFF_RATE_SHADOW_SEL_SHIFT	24
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#define GEN3_RELATED_OFF_RATE_SHADOW_SEL_MASK	GENMASK(25, 24)
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#define GEN3_EQ_CONTROL_OFF			0x8A8
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#define GEN3_EQ_CONTROL_OFF_FB_MODE		GENMASK(3, 0)
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#define GEN3_EQ_CONTROL_OFF_PHASE23_EXIT_MODE	BIT(4)
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#define GEN3_EQ_CONTROL_OFF_PSET_REQ_VEC	GENMASK(23, 8)
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#define GEN3_EQ_CONTROL_OFF_FOM_INC_INITIAL_EVAL	BIT(24)
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#define GEN3_EQ_FB_MODE_DIR_CHANGE_OFF		0x8AC
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#define GEN3_EQ_FMDC_T_MIN_PHASE23		GENMASK(4, 0)
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#define GEN3_EQ_FMDC_N_EVALS			GENMASK(9, 5)
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#define GEN3_EQ_FMDC_MAX_PRE_CURSOR_DELTA	GENMASK(13, 10)
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#define GEN3_EQ_FMDC_MAX_POST_CURSOR_DELTA	GENMASK(17, 14)
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#define PCIE_PORT_MULTI_LANE_CTRL	0x8C0
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#define PORT_MLTI_UPCFG_SUPPORT		BIT(7)
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#define PCIE_VERSION_NUMBER		0x8F8
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#define PCIE_VERSION_TYPE		0x8FC
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/*
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 * iATU inbound and outbound windows CSRs. Before the IP-core v4.80a each
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 * iATU region CSRs had been indirectly accessible by means of the dedicated
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 * viewport selector. The iATU/eDMA CSRs space was re-designed in DWC PCIe
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 * v4.80a in a way so the viewport was unrolled into the directly accessible
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 * iATU/eDMA CSRs space.
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 */
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#define PCIE_ATU_VIEWPORT		0x900
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#define PCIE_ATU_REGION_DIR_IB		BIT(31)
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#define PCIE_ATU_REGION_DIR_OB		0
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#define PCIE_ATU_VIEWPORT_BASE		0x904
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#define PCIE_ATU_UNROLL_BASE(dir, index) \
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	(((index) << 9) | ((dir == PCIE_ATU_REGION_DIR_IB) ? BIT(8) : 0))
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#define PCIE_ATU_VIEWPORT_SIZE		0x2C
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#define PCIE_ATU_REGION_CTRL1		0x000
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#define PCIE_ATU_INCREASE_REGION_SIZE	BIT(13)
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#define PCIE_ATU_TYPE_MEM		0x0
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#define PCIE_ATU_TYPE_IO		0x2
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#define PCIE_ATU_TYPE_CFG0		0x4
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#define PCIE_ATU_TYPE_CFG1		0x5
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#define PCIE_ATU_TYPE_MSG		0x10
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#define PCIE_ATU_TD			BIT(8)
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#define PCIE_ATU_FUNC_NUM(pf)           ((pf) << 20)
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#define PCIE_ATU_REGION_CTRL2		0x004
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#define PCIE_ATU_ENABLE			BIT(31)
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#define PCIE_ATU_BAR_MODE_ENABLE	BIT(30)
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#define PCIE_ATU_CFG_SHIFT_MODE_ENABLE	BIT(28)
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#define PCIE_ATU_INHIBIT_PAYLOAD	BIT(22)
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#define PCIE_ATU_FUNC_NUM_MATCH_EN      BIT(19)
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#define PCIE_ATU_LOWER_BASE		0x008
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#define PCIE_ATU_UPPER_BASE		0x00C
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#define PCIE_ATU_LIMIT			0x010
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#define PCIE_ATU_LOWER_TARGET		0x014
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#define PCIE_ATU_BUS(x)			FIELD_PREP(GENMASK(31, 24), x)
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#define PCIE_ATU_DEV(x)			FIELD_PREP(GENMASK(23, 19), x)
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#define PCIE_ATU_FUNC(x)		FIELD_PREP(GENMASK(18, 16), x)
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#define PCIE_ATU_UPPER_TARGET		0x018
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#define PCIE_ATU_UPPER_LIMIT		0x020
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#define PCIE_MISC_CONTROL_1_OFF		0x8BC
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#define PCIE_DBI_RO_WR_EN		BIT(0)
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#define PCIE_MSIX_DOORBELL		0x948
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#define PCIE_MSIX_DOORBELL_PF_SHIFT	24
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/*
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 * eDMA CSRs. DW PCIe IP-core v4.70a and older had the eDMA registers accessible
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 * over the Port Logic registers space. Afterwards the unrolled mapping was
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 * introduced so eDMA and iATU could be accessed via a dedicated registers
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 * space.
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 */
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#define PCIE_DMA_VIEWPORT_BASE		0x970
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#define PCIE_DMA_UNROLL_BASE		0x80000
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#define PCIE_DMA_CTRL			0x008
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#define PCIE_DMA_NUM_WR_CHAN		GENMASK(3, 0)
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#define PCIE_DMA_NUM_RD_CHAN		GENMASK(19, 16)
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#define PCIE_PL_CHK_REG_CONTROL_STATUS			0xB20
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#define PCIE_PL_CHK_REG_CHK_REG_START			BIT(0)
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#define PCIE_PL_CHK_REG_CHK_REG_CONTINUOUS		BIT(1)
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#define PCIE_PL_CHK_REG_CHK_REG_COMPARISON_ERROR	BIT(16)
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#define PCIE_PL_CHK_REG_CHK_REG_LOGIC_ERROR		BIT(17)
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#define PCIE_PL_CHK_REG_CHK_REG_COMPLETE		BIT(18)
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#define PCIE_PL_CHK_REG_ERR_ADDR			0xB28
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/*
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 * 16.0 GT/s (Gen 4) lane margining register definitions
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 */
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#define GEN4_LANE_MARGINING_1_OFF		0xB80
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#define MARGINING_MAX_VOLTAGE_OFFSET		GENMASK(29, 24)
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#define MARGINING_NUM_VOLTAGE_STEPS		GENMASK(22, 16)
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#define MARGINING_MAX_TIMING_OFFSET		GENMASK(13, 8)
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#define MARGINING_NUM_TIMING_STEPS		GENMASK(5, 0)
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#define GEN4_LANE_MARGINING_2_OFF		0xB84
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#define MARGINING_IND_ERROR_SAMPLER		BIT(28)
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#define MARGINING_SAMPLE_REPORTING_METHOD	BIT(27)
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#define MARGINING_IND_LEFT_RIGHT_TIMING		BIT(26)
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#define MARGINING_IND_UP_DOWN_VOLTAGE		BIT(25)
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#define MARGINING_VOLTAGE_SUPPORTED		BIT(24)
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#define MARGINING_MAXLANES			GENMASK(20, 16)
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#define MARGINING_SAMPLE_RATE_TIMING		GENMASK(13, 8)
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#define MARGINING_SAMPLE_RATE_VOLTAGE		GENMASK(5, 0)
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/*
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 * iATU Unroll-specific register definitions
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 * From 4.80 core version the address translation will be made by unroll
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 */
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#define PCIE_ATU_UNR_REGION_CTRL1	0x00
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#define PCIE_ATU_UNR_REGION_CTRL2	0x04
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#define PCIE_ATU_UNR_LOWER_BASE		0x08
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#define PCIE_ATU_UNR_UPPER_BASE		0x0C
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#define PCIE_ATU_UNR_LOWER_LIMIT	0x10
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#define PCIE_ATU_UNR_LOWER_TARGET	0x14
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#define PCIE_ATU_UNR_UPPER_TARGET	0x18
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#define PCIE_ATU_UNR_UPPER_LIMIT	0x20
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/*
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 * RAS-DES register definitions
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 */
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#define PCIE_RAS_DES_EVENT_COUNTER_CONTROL	0x8
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#define EVENT_COUNTER_ALL_CLEAR		0x3
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#define EVENT_COUNTER_ENABLE_ALL	0x7
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#define EVENT_COUNTER_ENABLE_SHIFT	2
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#define EVENT_COUNTER_EVENT_SEL_MASK	GENMASK(7, 0)
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#define EVENT_COUNTER_EVENT_SEL_SHIFT	16
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#define EVENT_COUNTER_EVENT_Tx_L0S	0x2
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#define EVENT_COUNTER_EVENT_Rx_L0S	0x3
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#define EVENT_COUNTER_EVENT_L1		0x5
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#define EVENT_COUNTER_EVENT_L1_1	0x7
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#define EVENT_COUNTER_EVENT_L1_2	0x8
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#define EVENT_COUNTER_GROUP_SEL_SHIFT	24
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#define EVENT_COUNTER_GROUP_5		0x5
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#define PCIE_RAS_DES_EVENT_COUNTER_DATA		0xc
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/* PTM register definitions */
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#define PTM_RES_REQ_CTRL		0x8
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#define PTM_RES_CCONTEXT_VALID		BIT(0)
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#define PTM_REQ_AUTO_UPDATE_ENABLED	BIT(0)
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#define PTM_REQ_START_UPDATE		BIT(1)
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#define PTM_LOCAL_LSB			0x10
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#define PTM_LOCAL_MSB			0x14
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#define PTM_T1_T2_LSB			0x18
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#define PTM_T1_T2_MSB			0x1c
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#define PTM_T3_T4_LSB			0x28
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#define PTM_T3_T4_MSB			0x2c
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#define PTM_MASTER_LSB			0x38
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#define PTM_MASTER_MSB			0x3c
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/*
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 * The default address offset between dbi_base and atu_base. Root controller
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 * drivers are not required to initialize atu_base if the offset matches this
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 * default; the driver core automatically derives atu_base from dbi_base using
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 * this offset, if atu_base not set.
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 */
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#define DEFAULT_DBI_ATU_OFFSET (0x3 << 20)
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#define DEFAULT_DBI_DMA_OFFSET PCIE_DMA_UNROLL_BASE
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#define MAX_MSI_IRQS			256
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#define MAX_MSI_IRQS_PER_CTRL		32
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#define MAX_MSI_CTRLS			(MAX_MSI_IRQS / MAX_MSI_IRQS_PER_CTRL)
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#define MSI_REG_CTRL_BLOCK_SIZE		12
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#define MSI_DEF_NUM_VECTORS		32
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/* Maximum number of inbound/outbound iATUs */
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#define MAX_IATU_IN			256
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#define MAX_IATU_OUT			256
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/* Default eDMA LLP memory size */
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#define DMA_LLP_MEM_SIZE		PAGE_SIZE
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struct dw_pcie;
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struct dw_pcie_rp;
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struct dw_pcie_ep;
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enum dw_pcie_device_mode {
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	DW_PCIE_UNKNOWN_TYPE,
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	DW_PCIE_EP_TYPE,
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	DW_PCIE_LEG_EP_TYPE,
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	DW_PCIE_RC_TYPE,
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};
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enum dw_pcie_app_clk {
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	DW_PCIE_DBI_CLK,
 | 
						|
	DW_PCIE_MSTR_CLK,
 | 
						|
	DW_PCIE_SLV_CLK,
 | 
						|
	DW_PCIE_NUM_APP_CLKS
 | 
						|
};
 | 
						|
 | 
						|
enum dw_pcie_core_clk {
 | 
						|
	DW_PCIE_PIPE_CLK,
 | 
						|
	DW_PCIE_CORE_CLK,
 | 
						|
	DW_PCIE_AUX_CLK,
 | 
						|
	DW_PCIE_REF_CLK,
 | 
						|
	DW_PCIE_NUM_CORE_CLKS
 | 
						|
};
 | 
						|
 | 
						|
enum dw_pcie_app_rst {
 | 
						|
	DW_PCIE_DBI_RST,
 | 
						|
	DW_PCIE_MSTR_RST,
 | 
						|
	DW_PCIE_SLV_RST,
 | 
						|
	DW_PCIE_NUM_APP_RSTS
 | 
						|
};
 | 
						|
 | 
						|
enum dw_pcie_core_rst {
 | 
						|
	DW_PCIE_NON_STICKY_RST,
 | 
						|
	DW_PCIE_STICKY_RST,
 | 
						|
	DW_PCIE_CORE_RST,
 | 
						|
	DW_PCIE_PIPE_RST,
 | 
						|
	DW_PCIE_PHY_RST,
 | 
						|
	DW_PCIE_HOT_RST,
 | 
						|
	DW_PCIE_PWR_RST,
 | 
						|
	DW_PCIE_NUM_CORE_RSTS
 | 
						|
};
 | 
						|
 | 
						|
enum dw_pcie_ltssm {
 | 
						|
	/* Need to align with PCIE_PORT_DEBUG0 bits 0:5 */
 | 
						|
	DW_PCIE_LTSSM_DETECT_QUIET = 0x0,
 | 
						|
	DW_PCIE_LTSSM_DETECT_ACT = 0x1,
 | 
						|
	DW_PCIE_LTSSM_POLL_ACTIVE = 0x2,
 | 
						|
	DW_PCIE_LTSSM_POLL_COMPLIANCE = 0x3,
 | 
						|
	DW_PCIE_LTSSM_POLL_CONFIG = 0x4,
 | 
						|
	DW_PCIE_LTSSM_PRE_DETECT_QUIET = 0x5,
 | 
						|
	DW_PCIE_LTSSM_DETECT_WAIT = 0x6,
 | 
						|
	DW_PCIE_LTSSM_CFG_LINKWD_START = 0x7,
 | 
						|
	DW_PCIE_LTSSM_CFG_LINKWD_ACEPT = 0x8,
 | 
						|
	DW_PCIE_LTSSM_CFG_LANENUM_WAI = 0x9,
 | 
						|
	DW_PCIE_LTSSM_CFG_LANENUM_ACEPT = 0xa,
 | 
						|
	DW_PCIE_LTSSM_CFG_COMPLETE = 0xb,
 | 
						|
	DW_PCIE_LTSSM_CFG_IDLE = 0xc,
 | 
						|
	DW_PCIE_LTSSM_RCVRY_LOCK = 0xd,
 | 
						|
	DW_PCIE_LTSSM_RCVRY_SPEED = 0xe,
 | 
						|
	DW_PCIE_LTSSM_RCVRY_RCVRCFG = 0xf,
 | 
						|
	DW_PCIE_LTSSM_RCVRY_IDLE = 0x10,
 | 
						|
	DW_PCIE_LTSSM_L0 = 0x11,
 | 
						|
	DW_PCIE_LTSSM_L0S = 0x12,
 | 
						|
	DW_PCIE_LTSSM_L123_SEND_EIDLE = 0x13,
 | 
						|
	DW_PCIE_LTSSM_L1_IDLE = 0x14,
 | 
						|
	DW_PCIE_LTSSM_L2_IDLE = 0x15,
 | 
						|
	DW_PCIE_LTSSM_L2_WAKE = 0x16,
 | 
						|
	DW_PCIE_LTSSM_DISABLED_ENTRY = 0x17,
 | 
						|
	DW_PCIE_LTSSM_DISABLED_IDLE = 0x18,
 | 
						|
	DW_PCIE_LTSSM_DISABLED = 0x19,
 | 
						|
	DW_PCIE_LTSSM_LPBK_ENTRY = 0x1a,
 | 
						|
	DW_PCIE_LTSSM_LPBK_ACTIVE = 0x1b,
 | 
						|
	DW_PCIE_LTSSM_LPBK_EXIT = 0x1c,
 | 
						|
	DW_PCIE_LTSSM_LPBK_EXIT_TIMEOUT = 0x1d,
 | 
						|
	DW_PCIE_LTSSM_HOT_RESET_ENTRY = 0x1e,
 | 
						|
	DW_PCIE_LTSSM_HOT_RESET = 0x1f,
 | 
						|
	DW_PCIE_LTSSM_RCVRY_EQ0 = 0x20,
 | 
						|
	DW_PCIE_LTSSM_RCVRY_EQ1 = 0x21,
 | 
						|
	DW_PCIE_LTSSM_RCVRY_EQ2 = 0x22,
 | 
						|
	DW_PCIE_LTSSM_RCVRY_EQ3 = 0x23,
 | 
						|
 | 
						|
	DW_PCIE_LTSSM_UNKNOWN = 0xFFFFFFFF,
 | 
						|
};
 | 
						|
 | 
						|
struct dw_pcie_ob_atu_cfg {
 | 
						|
	int index;
 | 
						|
	int type;
 | 
						|
	u8 func_no;
 | 
						|
	u8 code;
 | 
						|
	u8 routing;
 | 
						|
	u32 ctrl2;
 | 
						|
	u64 parent_bus_addr;
 | 
						|
	u64 pci_addr;
 | 
						|
	u64 size;
 | 
						|
};
 | 
						|
 | 
						|
struct dw_pcie_host_ops {
 | 
						|
	int (*init)(struct dw_pcie_rp *pp);
 | 
						|
	void (*deinit)(struct dw_pcie_rp *pp);
 | 
						|
	void (*post_init)(struct dw_pcie_rp *pp);
 | 
						|
	int (*msi_init)(struct dw_pcie_rp *pp);
 | 
						|
	void (*pme_turn_off)(struct dw_pcie_rp *pp);
 | 
						|
};
 | 
						|
 | 
						|
struct dw_pcie_rp {
 | 
						|
	bool			has_msi_ctrl:1;
 | 
						|
	bool			cfg0_io_shared:1;
 | 
						|
	u64			cfg0_base;
 | 
						|
	void __iomem		*va_cfg0_base;
 | 
						|
	u32			cfg0_size;
 | 
						|
	resource_size_t		io_base;
 | 
						|
	phys_addr_t		io_bus_addr;
 | 
						|
	u32			io_size;
 | 
						|
	int			irq;
 | 
						|
	const struct dw_pcie_host_ops *ops;
 | 
						|
	int			msi_irq[MAX_MSI_CTRLS];
 | 
						|
	struct irq_domain	*irq_domain;
 | 
						|
	dma_addr_t		msi_data;
 | 
						|
	struct irq_chip		*msi_irq_chip;
 | 
						|
	u32			num_vectors;
 | 
						|
	u32			irq_mask[MAX_MSI_CTRLS];
 | 
						|
	struct pci_host_bridge  *bridge;
 | 
						|
	raw_spinlock_t		lock;
 | 
						|
	DECLARE_BITMAP(msi_irq_in_use, MAX_MSI_IRQS);
 | 
						|
	bool			use_atu_msg;
 | 
						|
	int			msg_atu_index;
 | 
						|
	struct resource		*msg_res;
 | 
						|
	bool			use_linkup_irq;
 | 
						|
	struct pci_eq_presets	presets;
 | 
						|
	struct pci_config_window *cfg;
 | 
						|
	bool			ecam_enabled;
 | 
						|
	bool			native_ecam;
 | 
						|
};
 | 
						|
 | 
						|
struct dw_pcie_ep_ops {
 | 
						|
	void	(*pre_init)(struct dw_pcie_ep *ep);
 | 
						|
	void	(*init)(struct dw_pcie_ep *ep);
 | 
						|
	int	(*raise_irq)(struct dw_pcie_ep *ep, u8 func_no,
 | 
						|
			     unsigned int type, u16 interrupt_num);
 | 
						|
	const struct pci_epc_features* (*get_features)(struct dw_pcie_ep *ep);
 | 
						|
	/*
 | 
						|
	 * Provide a method to implement the different func config space
 | 
						|
	 * access for different platform, if different func have different
 | 
						|
	 * offset, return the offset of func. if use write a register way
 | 
						|
	 * return a 0, and implement code in callback function of platform
 | 
						|
	 * driver.
 | 
						|
	 */
 | 
						|
	unsigned int (*get_dbi_offset)(struct dw_pcie_ep *ep, u8 func_no);
 | 
						|
	unsigned int (*get_dbi2_offset)(struct dw_pcie_ep *ep, u8 func_no);
 | 
						|
};
 | 
						|
 | 
						|
struct dw_pcie_ep_func {
 | 
						|
	struct list_head	list;
 | 
						|
	u8			func_no;
 | 
						|
	u8			msi_cap;	/* MSI capability offset */
 | 
						|
	u8			msix_cap;	/* MSI-X capability offset */
 | 
						|
};
 | 
						|
 | 
						|
struct dw_pcie_ep {
 | 
						|
	struct pci_epc		*epc;
 | 
						|
	struct list_head	func_list;
 | 
						|
	const struct dw_pcie_ep_ops *ops;
 | 
						|
	phys_addr_t		phys_base;
 | 
						|
	size_t			addr_size;
 | 
						|
	size_t			page_size;
 | 
						|
	u8			bar_to_atu[PCI_STD_NUM_BARS];
 | 
						|
	phys_addr_t		*outbound_addr;
 | 
						|
	unsigned long		*ib_window_map;
 | 
						|
	unsigned long		*ob_window_map;
 | 
						|
	void __iomem		*msi_mem;
 | 
						|
	phys_addr_t		msi_mem_phys;
 | 
						|
	struct pci_epf_bar	*epf_bar[PCI_STD_NUM_BARS];
 | 
						|
};
 | 
						|
 | 
						|
struct dw_pcie_ops {
 | 
						|
	u64	(*cpu_addr_fixup)(struct dw_pcie *pcie, u64 cpu_addr);
 | 
						|
	u32	(*read_dbi)(struct dw_pcie *pcie, void __iomem *base, u32 reg,
 | 
						|
			    size_t size);
 | 
						|
	void	(*write_dbi)(struct dw_pcie *pcie, void __iomem *base, u32 reg,
 | 
						|
			     size_t size, u32 val);
 | 
						|
	void    (*write_dbi2)(struct dw_pcie *pcie, void __iomem *base, u32 reg,
 | 
						|
			      size_t size, u32 val);
 | 
						|
	bool	(*link_up)(struct dw_pcie *pcie);
 | 
						|
	enum dw_pcie_ltssm (*get_ltssm)(struct dw_pcie *pcie);
 | 
						|
	int	(*start_link)(struct dw_pcie *pcie);
 | 
						|
	void	(*stop_link)(struct dw_pcie *pcie);
 | 
						|
};
 | 
						|
 | 
						|
struct debugfs_info {
 | 
						|
	struct dentry		*debug_dir;
 | 
						|
	void			*rasdes_info;
 | 
						|
};
 | 
						|
 | 
						|
struct dw_pcie {
 | 
						|
	struct device		*dev;
 | 
						|
	void __iomem		*dbi_base;
 | 
						|
	resource_size_t		dbi_phys_addr;
 | 
						|
	void __iomem		*dbi_base2;
 | 
						|
	void __iomem		*atu_base;
 | 
						|
	void __iomem		*elbi_base;
 | 
						|
	resource_size_t		atu_phys_addr;
 | 
						|
	size_t			atu_size;
 | 
						|
	resource_size_t		parent_bus_offset;
 | 
						|
	u32			num_ib_windows;
 | 
						|
	u32			num_ob_windows;
 | 
						|
	u32			region_align;
 | 
						|
	u64			region_limit;
 | 
						|
	struct dw_pcie_rp	pp;
 | 
						|
	struct dw_pcie_ep	ep;
 | 
						|
	const struct dw_pcie_ops *ops;
 | 
						|
	u32			version;
 | 
						|
	u32			type;
 | 
						|
	unsigned long		caps;
 | 
						|
	int			num_lanes;
 | 
						|
	int			max_link_speed;
 | 
						|
	u8			n_fts[2];
 | 
						|
	struct dw_edma_chip	edma;
 | 
						|
	struct clk_bulk_data	app_clks[DW_PCIE_NUM_APP_CLKS];
 | 
						|
	struct clk_bulk_data	core_clks[DW_PCIE_NUM_CORE_CLKS];
 | 
						|
	struct reset_control_bulk_data	app_rsts[DW_PCIE_NUM_APP_RSTS];
 | 
						|
	struct reset_control_bulk_data	core_rsts[DW_PCIE_NUM_CORE_RSTS];
 | 
						|
	struct gpio_desc		*pe_rst;
 | 
						|
	bool			suspended;
 | 
						|
	struct debugfs_info	*debugfs;
 | 
						|
	enum			dw_pcie_device_mode mode;
 | 
						|
	u16			ptm_vsec_offset;
 | 
						|
	struct pci_ptm_debugfs	*ptm_debugfs;
 | 
						|
 | 
						|
	/*
 | 
						|
	 * If iATU input addresses are offset from CPU physical addresses,
 | 
						|
	 * we previously required .cpu_addr_fixup() to convert them.  We
 | 
						|
	 * now rely on the devicetree instead.  If .cpu_addr_fixup()
 | 
						|
	 * exists, we compare its results with devicetree.
 | 
						|
	 *
 | 
						|
	 * If .cpu_addr_fixup() does not exist, we assume the offset is
 | 
						|
	 * zero and warn if devicetree claims otherwise.  If we know all
 | 
						|
	 * devicetrees correctly describe the offset, set
 | 
						|
	 * use_parent_dt_ranges to true to avoid this warning.
 | 
						|
	 */
 | 
						|
	bool			use_parent_dt_ranges;
 | 
						|
};
 | 
						|
 | 
						|
#define to_dw_pcie_from_pp(port) container_of((port), struct dw_pcie, pp)
 | 
						|
 | 
						|
#define to_dw_pcie_from_ep(endpoint)   \
 | 
						|
		container_of((endpoint), struct dw_pcie, ep)
 | 
						|
 | 
						|
int dw_pcie_get_resources(struct dw_pcie *pci);
 | 
						|
 | 
						|
void dw_pcie_version_detect(struct dw_pcie *pci);
 | 
						|
 | 
						|
u8 dw_pcie_find_capability(struct dw_pcie *pci, u8 cap);
 | 
						|
u16 dw_pcie_find_ext_capability(struct dw_pcie *pci, u8 cap);
 | 
						|
u16 dw_pcie_find_rasdes_capability(struct dw_pcie *pci);
 | 
						|
u16 dw_pcie_find_ptm_capability(struct dw_pcie *pci);
 | 
						|
 | 
						|
int dw_pcie_read(void __iomem *addr, int size, u32 *val);
 | 
						|
int dw_pcie_write(void __iomem *addr, int size, u32 val);
 | 
						|
 | 
						|
u32 dw_pcie_read_dbi(struct dw_pcie *pci, u32 reg, size_t size);
 | 
						|
void dw_pcie_write_dbi(struct dw_pcie *pci, u32 reg, size_t size, u32 val);
 | 
						|
void dw_pcie_write_dbi2(struct dw_pcie *pci, u32 reg, size_t size, u32 val);
 | 
						|
bool dw_pcie_link_up(struct dw_pcie *pci);
 | 
						|
void dw_pcie_upconfig_setup(struct dw_pcie *pci);
 | 
						|
int dw_pcie_wait_for_link(struct dw_pcie *pci);
 | 
						|
int dw_pcie_link_get_max_link_width(struct dw_pcie *pci);
 | 
						|
int dw_pcie_prog_outbound_atu(struct dw_pcie *pci,
 | 
						|
			      const struct dw_pcie_ob_atu_cfg *atu);
 | 
						|
int dw_pcie_prog_inbound_atu(struct dw_pcie *pci, int index, int type,
 | 
						|
			     u64 parent_bus_addr, u64 pci_addr, u64 size);
 | 
						|
int dw_pcie_prog_ep_inbound_atu(struct dw_pcie *pci, u8 func_no, int index,
 | 
						|
				int type, u64 parent_bus_addr,
 | 
						|
				u8 bar, size_t size);
 | 
						|
void dw_pcie_disable_atu(struct dw_pcie *pci, u32 dir, int index);
 | 
						|
void dw_pcie_setup(struct dw_pcie *pci);
 | 
						|
void dw_pcie_iatu_detect(struct dw_pcie *pci);
 | 
						|
int dw_pcie_edma_detect(struct dw_pcie *pci);
 | 
						|
void dw_pcie_edma_remove(struct dw_pcie *pci);
 | 
						|
resource_size_t dw_pcie_parent_bus_offset(struct dw_pcie *pci,
 | 
						|
					  const char *reg_name,
 | 
						|
					  resource_size_t cpu_phy_addr);
 | 
						|
 | 
						|
static inline void dw_pcie_writel_dbi(struct dw_pcie *pci, u32 reg, u32 val)
 | 
						|
{
 | 
						|
	dw_pcie_write_dbi(pci, reg, 0x4, val);
 | 
						|
}
 | 
						|
 | 
						|
static inline u32 dw_pcie_readl_dbi(struct dw_pcie *pci, u32 reg)
 | 
						|
{
 | 
						|
	return dw_pcie_read_dbi(pci, reg, 0x4);
 | 
						|
}
 | 
						|
 | 
						|
static inline void dw_pcie_writew_dbi(struct dw_pcie *pci, u32 reg, u16 val)
 | 
						|
{
 | 
						|
	dw_pcie_write_dbi(pci, reg, 0x2, val);
 | 
						|
}
 | 
						|
 | 
						|
static inline u16 dw_pcie_readw_dbi(struct dw_pcie *pci, u32 reg)
 | 
						|
{
 | 
						|
	return dw_pcie_read_dbi(pci, reg, 0x2);
 | 
						|
}
 | 
						|
 | 
						|
static inline void dw_pcie_writeb_dbi(struct dw_pcie *pci, u32 reg, u8 val)
 | 
						|
{
 | 
						|
	dw_pcie_write_dbi(pci, reg, 0x1, val);
 | 
						|
}
 | 
						|
 | 
						|
static inline u8 dw_pcie_readb_dbi(struct dw_pcie *pci, u32 reg)
 | 
						|
{
 | 
						|
	return dw_pcie_read_dbi(pci, reg, 0x1);
 | 
						|
}
 | 
						|
 | 
						|
static inline void dw_pcie_writel_dbi2(struct dw_pcie *pci, u32 reg, u32 val)
 | 
						|
{
 | 
						|
	dw_pcie_write_dbi2(pci, reg, 0x4, val);
 | 
						|
}
 | 
						|
 | 
						|
static inline int dw_pcie_read_cfg_byte(struct dw_pcie *pci, int where,
 | 
						|
					u8 *val)
 | 
						|
{
 | 
						|
	*val = dw_pcie_readb_dbi(pci, where);
 | 
						|
	return PCIBIOS_SUCCESSFUL;
 | 
						|
}
 | 
						|
 | 
						|
static inline int dw_pcie_read_cfg_word(struct dw_pcie *pci, int where,
 | 
						|
					u16 *val)
 | 
						|
{
 | 
						|
	*val = dw_pcie_readw_dbi(pci, where);
 | 
						|
	return PCIBIOS_SUCCESSFUL;
 | 
						|
}
 | 
						|
 | 
						|
static inline int dw_pcie_read_cfg_dword(struct dw_pcie *pci, int where,
 | 
						|
					 u32 *val)
 | 
						|
{
 | 
						|
	*val = dw_pcie_readl_dbi(pci, where);
 | 
						|
	return PCIBIOS_SUCCESSFUL;
 | 
						|
}
 | 
						|
 | 
						|
static inline unsigned int dw_pcie_ep_get_dbi_offset(struct dw_pcie_ep *ep,
 | 
						|
						     u8 func_no)
 | 
						|
{
 | 
						|
	unsigned int dbi_offset = 0;
 | 
						|
 | 
						|
	if (ep->ops->get_dbi_offset)
 | 
						|
		dbi_offset = ep->ops->get_dbi_offset(ep, func_no);
 | 
						|
 | 
						|
	return dbi_offset;
 | 
						|
}
 | 
						|
 | 
						|
static inline u32 dw_pcie_ep_read_dbi(struct dw_pcie_ep *ep, u8 func_no,
 | 
						|
				      u32 reg, size_t size)
 | 
						|
{
 | 
						|
	unsigned int offset = dw_pcie_ep_get_dbi_offset(ep, func_no);
 | 
						|
	struct dw_pcie *pci = to_dw_pcie_from_ep(ep);
 | 
						|
 | 
						|
	return dw_pcie_read_dbi(pci, offset + reg, size);
 | 
						|
}
 | 
						|
 | 
						|
static inline void dw_pcie_ep_write_dbi(struct dw_pcie_ep *ep, u8 func_no,
 | 
						|
					u32 reg, size_t size, u32 val)
 | 
						|
{
 | 
						|
	unsigned int offset = dw_pcie_ep_get_dbi_offset(ep, func_no);
 | 
						|
	struct dw_pcie *pci = to_dw_pcie_from_ep(ep);
 | 
						|
 | 
						|
	dw_pcie_write_dbi(pci, offset + reg, size, val);
 | 
						|
}
 | 
						|
 | 
						|
static inline void dw_pcie_ep_writel_dbi(struct dw_pcie_ep *ep, u8 func_no,
 | 
						|
					 u32 reg, u32 val)
 | 
						|
{
 | 
						|
	dw_pcie_ep_write_dbi(ep, func_no, reg, 0x4, val);
 | 
						|
}
 | 
						|
 | 
						|
static inline u32 dw_pcie_ep_readl_dbi(struct dw_pcie_ep *ep, u8 func_no,
 | 
						|
				       u32 reg)
 | 
						|
{
 | 
						|
	return dw_pcie_ep_read_dbi(ep, func_no, reg, 0x4);
 | 
						|
}
 | 
						|
 | 
						|
static inline void dw_pcie_ep_writew_dbi(struct dw_pcie_ep *ep, u8 func_no,
 | 
						|
					 u32 reg, u16 val)
 | 
						|
{
 | 
						|
	dw_pcie_ep_write_dbi(ep, func_no, reg, 0x2, val);
 | 
						|
}
 | 
						|
 | 
						|
static inline u16 dw_pcie_ep_readw_dbi(struct dw_pcie_ep *ep, u8 func_no,
 | 
						|
				       u32 reg)
 | 
						|
{
 | 
						|
	return dw_pcie_ep_read_dbi(ep, func_no, reg, 0x2);
 | 
						|
}
 | 
						|
 | 
						|
static inline void dw_pcie_ep_writeb_dbi(struct dw_pcie_ep *ep, u8 func_no,
 | 
						|
					 u32 reg, u8 val)
 | 
						|
{
 | 
						|
	dw_pcie_ep_write_dbi(ep, func_no, reg, 0x1, val);
 | 
						|
}
 | 
						|
 | 
						|
static inline u8 dw_pcie_ep_readb_dbi(struct dw_pcie_ep *ep, u8 func_no,
 | 
						|
				      u32 reg)
 | 
						|
{
 | 
						|
	return dw_pcie_ep_read_dbi(ep, func_no, reg, 0x1);
 | 
						|
}
 | 
						|
 | 
						|
static inline int dw_pcie_ep_read_cfg_byte(struct dw_pcie_ep *ep, u8 func_no,
 | 
						|
					   int where, u8 *val)
 | 
						|
{
 | 
						|
	*val = dw_pcie_ep_readb_dbi(ep, func_no, where);
 | 
						|
	return PCIBIOS_SUCCESSFUL;
 | 
						|
}
 | 
						|
 | 
						|
static inline int dw_pcie_ep_read_cfg_word(struct dw_pcie_ep *ep, u8 func_no,
 | 
						|
					   int where, u16 *val)
 | 
						|
{
 | 
						|
	*val = dw_pcie_ep_readw_dbi(ep, func_no, where);
 | 
						|
	return PCIBIOS_SUCCESSFUL;
 | 
						|
}
 | 
						|
 | 
						|
static inline int dw_pcie_ep_read_cfg_dword(struct dw_pcie_ep *ep, u8 func_no,
 | 
						|
					    int where, u32 *val)
 | 
						|
{
 | 
						|
	*val = dw_pcie_ep_readl_dbi(ep, func_no, where);
 | 
						|
	return PCIBIOS_SUCCESSFUL;
 | 
						|
}
 | 
						|
 | 
						|
static inline unsigned int dw_pcie_ep_get_dbi2_offset(struct dw_pcie_ep *ep,
 | 
						|
						      u8 func_no)
 | 
						|
{
 | 
						|
	unsigned int dbi2_offset = 0;
 | 
						|
 | 
						|
	if (ep->ops->get_dbi2_offset)
 | 
						|
		dbi2_offset = ep->ops->get_dbi2_offset(ep, func_no);
 | 
						|
	else if (ep->ops->get_dbi_offset)     /* for backward compatibility */
 | 
						|
		dbi2_offset = ep->ops->get_dbi_offset(ep, func_no);
 | 
						|
 | 
						|
	return dbi2_offset;
 | 
						|
}
 | 
						|
 | 
						|
static inline void dw_pcie_ep_write_dbi2(struct dw_pcie_ep *ep, u8 func_no,
 | 
						|
					 u32 reg, size_t size, u32 val)
 | 
						|
{
 | 
						|
	unsigned int offset = dw_pcie_ep_get_dbi2_offset(ep, func_no);
 | 
						|
	struct dw_pcie *pci = to_dw_pcie_from_ep(ep);
 | 
						|
 | 
						|
	dw_pcie_write_dbi2(pci, offset + reg, size, val);
 | 
						|
}
 | 
						|
 | 
						|
static inline void dw_pcie_ep_writel_dbi2(struct dw_pcie_ep *ep, u8 func_no,
 | 
						|
					  u32 reg, u32 val)
 | 
						|
{
 | 
						|
	dw_pcie_ep_write_dbi2(ep, func_no, reg, 0x4, val);
 | 
						|
}
 | 
						|
 | 
						|
static inline void dw_pcie_dbi_ro_wr_en(struct dw_pcie *pci)
 | 
						|
{
 | 
						|
	u32 reg;
 | 
						|
	u32 val;
 | 
						|
 | 
						|
	reg = PCIE_MISC_CONTROL_1_OFF;
 | 
						|
	val = dw_pcie_readl_dbi(pci, reg);
 | 
						|
	val |= PCIE_DBI_RO_WR_EN;
 | 
						|
	dw_pcie_writel_dbi(pci, reg, val);
 | 
						|
}
 | 
						|
 | 
						|
static inline void dw_pcie_dbi_ro_wr_dis(struct dw_pcie *pci)
 | 
						|
{
 | 
						|
	u32 reg;
 | 
						|
	u32 val;
 | 
						|
 | 
						|
	reg = PCIE_MISC_CONTROL_1_OFF;
 | 
						|
	val = dw_pcie_readl_dbi(pci, reg);
 | 
						|
	val &= ~PCIE_DBI_RO_WR_EN;
 | 
						|
	dw_pcie_writel_dbi(pci, reg, val);
 | 
						|
}
 | 
						|
 | 
						|
static inline int dw_pcie_start_link(struct dw_pcie *pci)
 | 
						|
{
 | 
						|
	if (pci->ops && pci->ops->start_link)
 | 
						|
		return pci->ops->start_link(pci);
 | 
						|
 | 
						|
	return 0;
 | 
						|
}
 | 
						|
 | 
						|
static inline void dw_pcie_stop_link(struct dw_pcie *pci)
 | 
						|
{
 | 
						|
	if (pci->ops && pci->ops->stop_link)
 | 
						|
		pci->ops->stop_link(pci);
 | 
						|
}
 | 
						|
 | 
						|
static inline enum dw_pcie_ltssm dw_pcie_get_ltssm(struct dw_pcie *pci)
 | 
						|
{
 | 
						|
	u32 val;
 | 
						|
 | 
						|
	if (pci->ops && pci->ops->get_ltssm)
 | 
						|
		return pci->ops->get_ltssm(pci);
 | 
						|
 | 
						|
	val = dw_pcie_readl_dbi(pci, PCIE_PORT_DEBUG0);
 | 
						|
 | 
						|
	return (enum dw_pcie_ltssm)FIELD_GET(PORT_LOGIC_LTSSM_STATE_MASK, val);
 | 
						|
}
 | 
						|
 | 
						|
#ifdef CONFIG_PCIE_DW_HOST
 | 
						|
int dw_pcie_suspend_noirq(struct dw_pcie *pci);
 | 
						|
int dw_pcie_resume_noirq(struct dw_pcie *pci);
 | 
						|
irqreturn_t dw_handle_msi_irq(struct dw_pcie_rp *pp);
 | 
						|
void dw_pcie_msi_init(struct dw_pcie_rp *pp);
 | 
						|
int dw_pcie_msi_host_init(struct dw_pcie_rp *pp);
 | 
						|
void dw_pcie_free_msi(struct dw_pcie_rp *pp);
 | 
						|
int dw_pcie_setup_rc(struct dw_pcie_rp *pp);
 | 
						|
int dw_pcie_host_init(struct dw_pcie_rp *pp);
 | 
						|
void dw_pcie_host_deinit(struct dw_pcie_rp *pp);
 | 
						|
int dw_pcie_allocate_domains(struct dw_pcie_rp *pp);
 | 
						|
void __iomem *dw_pcie_own_conf_map_bus(struct pci_bus *bus, unsigned int devfn,
 | 
						|
				       int where);
 | 
						|
#else
 | 
						|
static inline int dw_pcie_suspend_noirq(struct dw_pcie *pci)
 | 
						|
{
 | 
						|
	return 0;
 | 
						|
}
 | 
						|
 | 
						|
static inline int dw_pcie_resume_noirq(struct dw_pcie *pci)
 | 
						|
{
 | 
						|
	return 0;
 | 
						|
}
 | 
						|
 | 
						|
static inline irqreturn_t dw_handle_msi_irq(struct dw_pcie_rp *pp)
 | 
						|
{
 | 
						|
	return IRQ_NONE;
 | 
						|
}
 | 
						|
 | 
						|
static inline void dw_pcie_msi_init(struct dw_pcie_rp *pp)
 | 
						|
{ }
 | 
						|
 | 
						|
static inline int dw_pcie_msi_host_init(struct dw_pcie_rp *pp)
 | 
						|
{
 | 
						|
	return -ENODEV;
 | 
						|
}
 | 
						|
 | 
						|
static inline void dw_pcie_free_msi(struct dw_pcie_rp *pp)
 | 
						|
{ }
 | 
						|
 | 
						|
static inline int dw_pcie_setup_rc(struct dw_pcie_rp *pp)
 | 
						|
{
 | 
						|
	return 0;
 | 
						|
}
 | 
						|
 | 
						|
static inline int dw_pcie_host_init(struct dw_pcie_rp *pp)
 | 
						|
{
 | 
						|
	return 0;
 | 
						|
}
 | 
						|
 | 
						|
static inline void dw_pcie_host_deinit(struct dw_pcie_rp *pp)
 | 
						|
{
 | 
						|
}
 | 
						|
 | 
						|
static inline int dw_pcie_allocate_domains(struct dw_pcie_rp *pp)
 | 
						|
{
 | 
						|
	return 0;
 | 
						|
}
 | 
						|
static inline void __iomem *dw_pcie_own_conf_map_bus(struct pci_bus *bus,
 | 
						|
						     unsigned int devfn,
 | 
						|
						     int where)
 | 
						|
{
 | 
						|
	return NULL;
 | 
						|
}
 | 
						|
#endif
 | 
						|
 | 
						|
#ifdef CONFIG_PCIE_DW_EP
 | 
						|
void dw_pcie_ep_linkup(struct dw_pcie_ep *ep);
 | 
						|
void dw_pcie_ep_linkdown(struct dw_pcie_ep *ep);
 | 
						|
int dw_pcie_ep_init(struct dw_pcie_ep *ep);
 | 
						|
int dw_pcie_ep_init_registers(struct dw_pcie_ep *ep);
 | 
						|
void dw_pcie_ep_deinit(struct dw_pcie_ep *ep);
 | 
						|
void dw_pcie_ep_cleanup(struct dw_pcie_ep *ep);
 | 
						|
int dw_pcie_ep_raise_intx_irq(struct dw_pcie_ep *ep, u8 func_no);
 | 
						|
int dw_pcie_ep_raise_msi_irq(struct dw_pcie_ep *ep, u8 func_no,
 | 
						|
			     u8 interrupt_num);
 | 
						|
int dw_pcie_ep_raise_msix_irq(struct dw_pcie_ep *ep, u8 func_no,
 | 
						|
			     u16 interrupt_num);
 | 
						|
int dw_pcie_ep_raise_msix_irq_doorbell(struct dw_pcie_ep *ep, u8 func_no,
 | 
						|
				       u16 interrupt_num);
 | 
						|
void dw_pcie_ep_reset_bar(struct dw_pcie *pci, enum pci_barno bar);
 | 
						|
int dw_pcie_ep_hide_ext_capability(struct dw_pcie *pci, u8 prev_cap, u8 cap);
 | 
						|
struct dw_pcie_ep_func *
 | 
						|
dw_pcie_ep_get_func_from_ep(struct dw_pcie_ep *ep, u8 func_no);
 | 
						|
#else
 | 
						|
static inline void dw_pcie_ep_linkup(struct dw_pcie_ep *ep)
 | 
						|
{
 | 
						|
}
 | 
						|
 | 
						|
static inline void dw_pcie_ep_linkdown(struct dw_pcie_ep *ep)
 | 
						|
{
 | 
						|
}
 | 
						|
 | 
						|
static inline int dw_pcie_ep_init(struct dw_pcie_ep *ep)
 | 
						|
{
 | 
						|
	return 0;
 | 
						|
}
 | 
						|
 | 
						|
static inline int dw_pcie_ep_init_registers(struct dw_pcie_ep *ep)
 | 
						|
{
 | 
						|
	return 0;
 | 
						|
}
 | 
						|
 | 
						|
static inline void dw_pcie_ep_deinit(struct dw_pcie_ep *ep)
 | 
						|
{
 | 
						|
}
 | 
						|
 | 
						|
static inline void dw_pcie_ep_cleanup(struct dw_pcie_ep *ep)
 | 
						|
{
 | 
						|
}
 | 
						|
 | 
						|
static inline int dw_pcie_ep_raise_intx_irq(struct dw_pcie_ep *ep, u8 func_no)
 | 
						|
{
 | 
						|
	return 0;
 | 
						|
}
 | 
						|
 | 
						|
static inline int dw_pcie_ep_raise_msi_irq(struct dw_pcie_ep *ep, u8 func_no,
 | 
						|
					   u8 interrupt_num)
 | 
						|
{
 | 
						|
	return 0;
 | 
						|
}
 | 
						|
 | 
						|
static inline int dw_pcie_ep_raise_msix_irq(struct dw_pcie_ep *ep, u8 func_no,
 | 
						|
					   u16 interrupt_num)
 | 
						|
{
 | 
						|
	return 0;
 | 
						|
}
 | 
						|
 | 
						|
static inline int dw_pcie_ep_raise_msix_irq_doorbell(struct dw_pcie_ep *ep,
 | 
						|
						     u8 func_no,
 | 
						|
						     u16 interrupt_num)
 | 
						|
{
 | 
						|
	return 0;
 | 
						|
}
 | 
						|
 | 
						|
static inline void dw_pcie_ep_reset_bar(struct dw_pcie *pci, enum pci_barno bar)
 | 
						|
{
 | 
						|
}
 | 
						|
 | 
						|
static inline int dw_pcie_ep_hide_ext_capability(struct dw_pcie *pci,
 | 
						|
						 u8 prev_cap, u8 cap)
 | 
						|
{
 | 
						|
	return 0;
 | 
						|
}
 | 
						|
 | 
						|
static inline struct dw_pcie_ep_func *
 | 
						|
dw_pcie_ep_get_func_from_ep(struct dw_pcie_ep *ep, u8 func_no)
 | 
						|
{
 | 
						|
	return NULL;
 | 
						|
}
 | 
						|
#endif
 | 
						|
 | 
						|
#ifdef CONFIG_PCIE_DW_DEBUGFS
 | 
						|
void dwc_pcie_debugfs_init(struct dw_pcie *pci, enum dw_pcie_device_mode mode);
 | 
						|
void dwc_pcie_debugfs_deinit(struct dw_pcie *pci);
 | 
						|
#else
 | 
						|
static inline void dwc_pcie_debugfs_init(struct dw_pcie *pci,
 | 
						|
					 enum dw_pcie_device_mode mode)
 | 
						|
{
 | 
						|
}
 | 
						|
static inline void dwc_pcie_debugfs_deinit(struct dw_pcie *pci)
 | 
						|
{
 | 
						|
}
 | 
						|
#endif
 | 
						|
 | 
						|
#endif /* _PCIE_DESIGNWARE_H */
 |