On Tue, Mar 06, 2018 at 10:43:22AM +0800, Shawn Lin wrote:
> In preparation for introducing End-Point driver for Rockchip
> PCIe controller, we create a new folder to follow the convention
> of dwc and cadence. Then we rename the host driver from pcie-rockchip.c
> to pcie-rockchip-host.c, and only leave some common functions in
> pcie-rockchip.c in order to be reused for both of host and EP drivers.
>
> Signed-off-by: Shawn Lin <shawn.lin@xxxxxxxxxxxxxx>
> Tested-by: Jeffy Chen <jeffy.chen@xxxxxxxxxxxxxx>
> ---
>
> Changes in v3: None
> Changes in v2: None
>
> MAINTAINERS | 4 +-
> drivers/pci/Kconfig | 1 +
> drivers/pci/Makefile | 2 +
> drivers/pci/host/Kconfig | 11 -
> drivers/pci/host/Makefile | 1 -
> drivers/pci/rockchip/Kconfig | 20 ++
> drivers/pci/rockchip/Makefile | 3 +
> .../pcie-rockchip-host.c} | 344 +--------------------
> drivers/pci/rockchip/pcie-rockchip.c | 141 +++++++++
> drivers/pci/rockchip/pcie-rockchip.h | 246 +++++++++++++++
> 10 files changed, 416 insertions(+), 357 deletions(-)
> create mode 100644 drivers/pci/rockchip/Kconfig
> create mode 100644 drivers/pci/rockchip/Makefile
> rename drivers/pci/{host/pcie-rockchip.c => rockchip/pcie-rockchip-host.c} (75%)
> create mode 100644 drivers/pci/rockchip/pcie-rockchip.c
> create mode 100644 drivers/pci/rockchip/pcie-rockchip.h
>
> diff --git a/MAINTAINERS b/MAINTAINERS
> index 6d78237..6b84d80 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -10883,8 +10883,8 @@ M: Shawn Lin <shawn.lin@xxxxxxxxxxxxxx>
> L: linux-pci@xxxxxxxxxxxxxxx
> L: linux-rockchip@xxxxxxxxxxxxxxxxxxx
> S: Maintained
> -F: Documentation/devicetree/bindings/pci/rockchip-pcie.txt
> -F: drivers/pci/host/pcie-rockchip.c
> +F: Documentation/devicetree/bindings/pci/rockchip-pcie*
> +F: drivers/pci/rockchip/*
>
> PCI DRIVER FOR V3 SEMICONDUCTOR V360EPC
> M: Linus Walleij <linus.walleij@xxxxxxxxxx>
> diff --git a/drivers/pci/Kconfig b/drivers/pci/Kconfig
> index 34b56a8..b85ad40 100644
> --- a/drivers/pci/Kconfig
> +++ b/drivers/pci/Kconfig
> @@ -141,4 +141,5 @@ source "drivers/pci/cadence/Kconfig"
> source "drivers/pci/dwc/Kconfig"
> source "drivers/pci/host/Kconfig"
> source "drivers/pci/endpoint/Kconfig"
> +source "drivers/pci/rockchip/Kconfig"
> source "drivers/pci/switch/Kconfig"
> diff --git a/drivers/pci/Makefile b/drivers/pci/Makefile
> index 9419709..8434afb 100644
> --- a/drivers/pci/Makefile
> +++ b/drivers/pci/Makefile
> @@ -55,6 +55,8 @@ obj-y += switch/
>
> obj-$(CONFIG_PCI_ENDPOINT) += endpoint/
>
> +obj-$(CONFIG_PCIE_ROCKCHIP) += rockchip/
> +
> # Endpoint library must be initialized before its users
> obj-$(CONFIG_PCIE_CADENCE) += cadence/
> # pcie-hisi.o quirks are needed even without CONFIG_PCIE_DW
> diff --git a/drivers/pci/host/Kconfig b/drivers/pci/host/Kconfig
> index dc8a2a1..4145f4f 100644
> --- a/drivers/pci/host/Kconfig
> +++ b/drivers/pci/host/Kconfig
> @@ -177,17 +177,6 @@ config PCI_HOST_THUNDER_ECAM
> help
> Say Y here if you want ECAM support for CN88XX-Pass-1.x Cavium Thunder SoCs.
>
> -config PCIE_ROCKCHIP
> - tristate "Rockchip PCIe controller"
> - depends on ARCH_ROCKCHIP || COMPILE_TEST
> - depends on OF
> - depends on PCI_MSI_IRQ_DOMAIN
> - select MFD_SYSCON
> - help
> - Say Y here if you want internal PCI support on Rockchip SoC.
> - There is 1 internal PCIe port available to support GEN2 with
> - 4 slots.
> -
> config PCIE_MEDIATEK
> bool "MediaTek PCIe controller"
> depends on (ARM || ARM64) && (ARCH_MEDIATEK || COMPILE_TEST)
> diff --git a/drivers/pci/host/Makefile b/drivers/pci/host/Makefile
> index 3b10591..ceab86a 100644
> --- a/drivers/pci/host/Makefile
> +++ b/drivers/pci/host/Makefile
> @@ -19,7 +19,6 @@ obj-$(CONFIG_PCIE_IPROC_PLATFORM) += pcie-iproc-platform.o
> obj-$(CONFIG_PCIE_IPROC_BCMA) += pcie-iproc-bcma.o
> obj-$(CONFIG_PCIE_ALTERA) += pcie-altera.o
> obj-$(CONFIG_PCIE_ALTERA_MSI) += pcie-altera-msi.o
> -obj-$(CONFIG_PCIE_ROCKCHIP) += pcie-rockchip.o
> obj-$(CONFIG_PCIE_MEDIATEK) += pcie-mediatek.o
> obj-$(CONFIG_PCIE_TANGO_SMP8759) += pcie-tango.o
> obj-$(CONFIG_VMD) += vmd.o
> diff --git a/drivers/pci/rockchip/Kconfig b/drivers/pci/rockchip/Kconfig
> new file mode 100644
> index 0000000..d655b77
> --- /dev/null
> +++ b/drivers/pci/rockchip/Kconfig
> @@ -0,0 +1,20 @@
> +# SPDX-License-Identifier: GPL-2.0
> +
> +menu "Rockchip PCIe controllers support"
> +
> +config PCIE_ROCKCHIP
> + bool
You have to replace the existing defconfigs though, (eg arm64
defconfig where this is set as "m" since it would warn otherwise).
Two nits below.
[...]
> static int __maybe_unused rockchip_pcie_suspend_noirq(struct device *dev)
> {
> struct rockchip_pcie *rockchip = dev_get_drvdata(dev);
> diff --git a/drivers/pci/rockchip/pcie-rockchip.c b/drivers/pci/rockchip/pcie-rockchip.c
> new file mode 100644
> index 0000000..c7614f9
> --- /dev/null
> +++ b/drivers/pci/rockchip/pcie-rockchip.c
> @@ -0,0 +1,141 @@
> +// SPDX-License-Identifier: GPL-2.0+
> +/*
> + * Rockchip AXI PCIe host controller driver
> + *
> + * Copyright (c) 2016 Rockchip, Inc.
> + *
> + * Author: Shawn Lin <shawn.lin@xxxxxxxxxxxxxx>
> + * Wenrui Li <wenrui.li@xxxxxxxxxxxxxx>
> + *
> + * Bits taken from Synopsys DesignWare Host controller driver and
> + * ARM PCI Host generic driver.
> + */
> +
> +#include <linux/clk.h>
> +#include <linux/phy/phy.h>
> +
> +#include "pcie-rockchip.h"
> +
> +int rockchip_pcie_get_phys(struct rockchip_pcie *rockchip)
> +{
> + struct device *dev = rockchip->dev;
> + struct phy *phy;
> + char *name;
> + u32 i;
> +
> + phy = devm_phy_get(dev, "pcie-phy");
> + if (!IS_ERR(phy)) {
> + rockchip->legacy_phy = true;
> + rockchip->phys[0] = phy;
> + dev_warn(dev, "legacy phy model is deprecated!\n");
> + return 0;
> + }
> +
> + if (PTR_ERR(phy) == -EPROBE_DEFER)
> + return PTR_ERR(phy);
> +
> + dev_dbg(dev, "missing legacy phy; search for per-lane PHY\n");
> +
> + for (i = 0; i < MAX_LANE_NUM; i++) {
> + name = kasprintf(GFP_KERNEL, "pcie-phy-%u", i);
> + if (!name)
> + return -ENOMEM;
> +
> + phy = devm_of_phy_get(dev, dev->of_node, name);
> + kfree(name);
> +
> + if (IS_ERR(phy)) {
> + if (PTR_ERR(phy) != -EPROBE_DEFER)
> + dev_err(dev, "missing phy for lane %d: %ld\n",
> + i, PTR_ERR(phy));
> + return PTR_ERR(phy);
> + }
> +
> + rockchip->phys[i] = phy;
> + }
> +
> + return 0;
> +}
> +
> +
Nit: remove one empty line.
> +void rockchip_pcie_deinit_phys(struct rockchip_pcie *rockchip)
> +{
> + int i;
> +
> + for (i = 0; i < MAX_LANE_NUM; i++) {
> + /* inactive lanes are already powered off */
> + if (rockchip->lanes_map & BIT(i))
> + phy_power_off(rockchip->phys[i]);
> + phy_exit(rockchip->phys[i]);
> + }
> +}
> +
> +int rockchip_pcie_enable_clocks(struct rockchip_pcie *rockchip)
> +{
> + struct device *dev = rockchip->dev;
> + int err;
> +
> + err = clk_prepare_enable(rockchip->aclk_pcie);
> + if (err) {
> + dev_err(dev, "unable to enable aclk_pcie clock\n");
> + return err;
> + }
> +
> + err = clk_prepare_enable(rockchip->aclk_perf_pcie);
> + if (err) {
> + dev_err(dev, "unable to enable aclk_perf_pcie clock\n");
> + goto err_aclk_perf_pcie;
> + }
> +
> + err = clk_prepare_enable(rockchip->hclk_pcie);
> + if (err) {
> + dev_err(dev, "unable to enable hclk_pcie clock\n");
> + goto err_hclk_pcie;
> + }
> +
> + err = clk_prepare_enable(rockchip->clk_pcie_pm);
> + if (err) {
> + dev_err(dev, "unable to enable clk_pcie_pm clock\n");
> + goto err_clk_pcie_pm;
> + }
> +
> + return 0;
> +
> +err_clk_pcie_pm:
> + clk_disable_unprepare(rockchip->hclk_pcie);
> +err_hclk_pcie:
> + clk_disable_unprepare(rockchip->aclk_perf_pcie);
> +err_aclk_perf_pcie:
> + clk_disable_unprepare(rockchip->aclk_pcie);
> + return err;
> +}
> +
> +void rockchip_pcie_disable_clocks(void *data)
> +{
> + struct rockchip_pcie *rockchip = data;
> +
> + clk_disable_unprepare(rockchip->clk_pcie_pm);
> + clk_disable_unprepare(rockchip->hclk_pcie);
> + clk_disable_unprepare(rockchip->aclk_perf_pcie);
> + clk_disable_unprepare(rockchip->aclk_pcie);
> +}
> +
> +void rockchip_pcie_cfg_configuration_accesses(
> + struct rockchip_pcie *rockchip, u32 type)
> +{
> + u32 ob_desc_0;
> +
> + /* Configuration Accesses for region 0 */
> + rockchip_pcie_write(rockchip, 0x0, PCIE_RC_BAR_CONF);
> +
> + rockchip_pcie_write(rockchip,
> + (RC_REGION_0_ADDR_TRANS_L + RC_REGION_0_PASS_BITS),
> + PCIE_CORE_OB_REGION_ADDR0);
> + rockchip_pcie_write(rockchip, RC_REGION_0_ADDR_TRANS_H,
> + PCIE_CORE_OB_REGION_ADDR1);
> + ob_desc_0 = rockchip_pcie_read(rockchip, PCIE_CORE_OB_REGION_DESC0);
> + ob_desc_0 &= ~(RC_REGION_0_TYPE_MASK);
> + ob_desc_0 |= (type | (0x1 << 23));
> + rockchip_pcie_write(rockchip, ob_desc_0, PCIE_CORE_OB_REGION_DESC0);
> + rockchip_pcie_write(rockchip, 0x0, PCIE_CORE_OB_REGION_DESC1);
> +}
> diff --git a/drivers/pci/rockchip/pcie-rockchip.h b/drivers/pci/rockchip/pcie-rockchip.h
> new file mode 100644
> index 0000000..9e0cf2e
> --- /dev/null
> +++ b/drivers/pci/rockchip/pcie-rockchip.h
> @@ -0,0 +1,246 @@
> +// SPDX-License-Identifier: GPL-2.0+
> +/*
> + * Rockchip AXI PCIe controller driver
> + *
> + * Copyright (c) 2018 Rockchip, Inc.
> + *
> + * Author: Shawn Lin <shawn.lin@xxxxxxxxxxxxxx>
> + *
> + */
> +
> +#ifndef _PCIE_ROCKCHIP_H
> +#define _PCIE_ROCKCHIP_H
> +
> +#include <linux/kernel.h>
> +#include <linux/pci.h>
> +
> +/*
> + * The upper 16 bits of PCIE_CLIENT_CONFIG are a write mask for the lower 16
> + * bits. This allows atomic updates of the register without locking.
> + */
> +#define HIWORD_UPDATE(mask, val) (((mask) << 16) | (val))
> +#define HIWORD_UPDATE_BIT(val) HIWORD_UPDATE(val, val)
> +
> +#define ENCODE_LANES(x) ((((x) >> 1) & 3) << 4)
> +#define MAX_LANE_NUM 4
> +
> +#define PCIE_CLIENT_BASE 0x0
> +#define PCIE_CLIENT_CONFIG (PCIE_CLIENT_BASE + 0x00)
> +#define PCIE_CLIENT_CONF_ENABLE HIWORD_UPDATE_BIT(0x0001)
> +#define PCIE_CLIENT_LINK_TRAIN_ENABLE HIWORD_UPDATE_BIT(0x0002)
> +#define PCIE_CLIENT_ARI_ENABLE HIWORD_UPDATE_BIT(0x0008)
> +#define PCIE_CLIENT_CONF_LANE_NUM(x) HIWORD_UPDATE(0x0030, ENCODE_LANES(x))
> +#define PCIE_CLIENT_MODE_RC HIWORD_UPDATE_BIT(0x0040)
> +#define PCIE_CLIENT_GEN_SEL_1 HIWORD_UPDATE(0x0080, 0)
> +#define PCIE_CLIENT_GEN_SEL_2 HIWORD_UPDATE_BIT(0x0080)
> +#define PCIE_CLIENT_DEBUG_OUT_0 (PCIE_CLIENT_BASE + 0x3c)
> +#define PCIE_CLIENT_DEBUG_LTSSM_MASK GENMASK(5, 0)
> +#define PCIE_CLIENT_DEBUG_LTSSM_L1 0x18
> +#define PCIE_CLIENT_DEBUG_LTSSM_L2 0x19
> +#define PCIE_CLIENT_BASIC_STATUS1 (PCIE_CLIENT_BASE + 0x48)
> +#define PCIE_CLIENT_LINK_STATUS_UP 0x00300000
> +#define PCIE_CLIENT_LINK_STATUS_MASK 0x00300000
> +#define PCIE_CLIENT_INT_MASK (PCIE_CLIENT_BASE + 0x4c)
> +#define PCIE_CLIENT_INT_STATUS (PCIE_CLIENT_BASE + 0x50)
> +#define PCIE_CLIENT_INTR_MASK GENMASK(8, 5)
> +#define PCIE_CLIENT_INTR_SHIFT 5
> +#define PCIE_CLIENT_INT_LEGACY_DONE BIT(15)
> +#define PCIE_CLIENT_INT_MSG BIT(14)
> +#define PCIE_CLIENT_INT_HOT_RST BIT(13)
> +#define PCIE_CLIENT_INT_DPA BIT(12)
> +#define PCIE_CLIENT_INT_FATAL_ERR BIT(11)
> +#define PCIE_CLIENT_INT_NFATAL_ERR BIT(10)
> +#define PCIE_CLIENT_INT_CORR_ERR BIT(9)
> +#define PCIE_CLIENT_INT_INTD BIT(8)
> +#define PCIE_CLIENT_INT_INTC BIT(7)
> +#define PCIE_CLIENT_INT_INTB BIT(6)
> +#define PCIE_CLIENT_INT_INTA BIT(5)
> +#define PCIE_CLIENT_INT_LOCAL BIT(4)
> +#define PCIE_CLIENT_INT_UDMA BIT(3)
> +#define PCIE_CLIENT_INT_PHY BIT(2)
> +#define PCIE_CLIENT_INT_HOT_PLUG BIT(1)
> +#define PCIE_CLIENT_INT_PWR_STCG BIT(0)
> +
> +#define PCIE_CLIENT_INT_LEGACY \
> + (PCIE_CLIENT_INT_INTA | PCIE_CLIENT_INT_INTB | \
> + PCIE_CLIENT_INT_INTC | PCIE_CLIENT_INT_INTD)
> +
> +#define PCIE_CLIENT_INT_CLI \
> + (PCIE_CLIENT_INT_CORR_ERR | PCIE_CLIENT_INT_NFATAL_ERR | \
> + PCIE_CLIENT_INT_FATAL_ERR | PCIE_CLIENT_INT_DPA | \
> + PCIE_CLIENT_INT_HOT_RST | PCIE_CLIENT_INT_MSG | \
> + PCIE_CLIENT_INT_LEGACY_DONE | PCIE_CLIENT_INT_LEGACY | \
> + PCIE_CLIENT_INT_PHY)
> +
> +#define PCIE_CORE_CTRL_MGMT_BASE 0x900000
> +#define PCIE_CORE_CTRL (PCIE_CORE_CTRL_MGMT_BASE + 0x000)
> +#define PCIE_CORE_PL_CONF_SPEED_5G 0x00000008
> +#define PCIE_CORE_PL_CONF_SPEED_MASK 0x00000018
> +#define PCIE_CORE_PL_CONF_LANE_MASK 0x00000006
> +#define PCIE_CORE_PL_CONF_LANE_SHIFT 1
> +#define PCIE_CORE_CTRL_PLC1 (PCIE_CORE_CTRL_MGMT_BASE + 0x004)
> +#define PCIE_CORE_CTRL_PLC1_FTS_MASK GENMASK(23, 8)
> +#define PCIE_CORE_CTRL_PLC1_FTS_SHIFT 8
> +#define PCIE_CORE_CTRL_PLC1_FTS_CNT 0xffff
> +#define PCIE_CORE_TXCREDIT_CFG1 (PCIE_CORE_CTRL_MGMT_BASE + 0x020)
> +#define PCIE_CORE_TXCREDIT_CFG1_MUI_MASK 0xFFFF0000
> +#define PCIE_CORE_TXCREDIT_CFG1_MUI_SHIFT 16
> +#define PCIE_CORE_TXCREDIT_CFG1_MUI_ENCODE(x) \
> + (((x) >> 3) << PCIE_CORE_TXCREDIT_CFG1_MUI_SHIFT)
> +#define PCIE_CORE_LANE_MAP (PCIE_CORE_CTRL_MGMT_BASE + 0x200)
> +#define PCIE_CORE_LANE_MAP_MASK 0x0000000f
> +#define PCIE_CORE_LANE_MAP_REVERSE BIT(16)
> +#define PCIE_CORE_INT_STATUS (PCIE_CORE_CTRL_MGMT_BASE + 0x20c)
> +#define PCIE_CORE_INT_PRFPE BIT(0)
> +#define PCIE_CORE_INT_CRFPE BIT(1)
> +#define PCIE_CORE_INT_RRPE BIT(2)
> +#define PCIE_CORE_INT_PRFO BIT(3)
> +#define PCIE_CORE_INT_CRFO BIT(4)
> +#define PCIE_CORE_INT_RT BIT(5)
> +#define PCIE_CORE_INT_RTR BIT(6)
> +#define PCIE_CORE_INT_PE BIT(7)
> +#define PCIE_CORE_INT_MTR BIT(8)
> +#define PCIE_CORE_INT_UCR BIT(9)
> +#define PCIE_CORE_INT_FCE BIT(10)
> +#define PCIE_CORE_INT_CT BIT(11)
> +#define PCIE_CORE_INT_UTC BIT(18)
> +#define PCIE_CORE_INT_MMVC BIT(19)
> +#define PCIE_CORE_CONFIG_VENDOR (PCIE_CORE_CTRL_MGMT_BASE + 0x44)
> +#define PCIE_CORE_INT_MASK (PCIE_CORE_CTRL_MGMT_BASE + 0x210)
> +#define PCIE_RC_BAR_CONF (PCIE_CORE_CTRL_MGMT_BASE + 0x300)
> +
> +#define PCIE_CORE_INT \
> + (PCIE_CORE_INT_PRFPE | PCIE_CORE_INT_CRFPE | \
> + PCIE_CORE_INT_RRPE | PCIE_CORE_INT_CRFO | \
> + PCIE_CORE_INT_RT | PCIE_CORE_INT_RTR | \
> + PCIE_CORE_INT_PE | PCIE_CORE_INT_MTR | \
> + PCIE_CORE_INT_UCR | PCIE_CORE_INT_FCE | \
> + PCIE_CORE_INT_CT | PCIE_CORE_INT_UTC | \
> + PCIE_CORE_INT_MMVC)
> +
> +#define PCIE_RC_CONFIG_NORMAL_BASE 0x800000
> +#define PCIE_RC_CONFIG_BASE 0xa00000
> +#define PCIE_RC_CONFIG_RID_CCR (PCIE_RC_CONFIG_BASE + 0x08)
> +#define PCIE_RC_CONFIG_SCC_SHIFT 16
> +#define PCIE_RC_CONFIG_DCR (PCIE_RC_CONFIG_BASE + 0xc4)
> +#define PCIE_RC_CONFIG_DCR_CSPL_SHIFT 18
> +#define PCIE_RC_CONFIG_DCR_CSPL_LIMIT 0xff
> +#define PCIE_RC_CONFIG_DCR_CPLS_SHIFT 26
> +#define PCIE_RC_CONFIG_DCSR (PCIE_RC_CONFIG_BASE + 0xc8)
> +#define PCIE_RC_CONFIG_DCSR_MPS_MASK GENMASK(7, 5)
> +#define PCIE_RC_CONFIG_DCSR_MPS_256 (0x1 << 5)
> +#define PCIE_RC_CONFIG_LINK_CAP (PCIE_RC_CONFIG_BASE + 0xcc)
> +#define PCIE_RC_CONFIG_LINK_CAP_L0S BIT(10)
> +#define PCIE_RC_CONFIG_LCS (PCIE_RC_CONFIG_BASE + 0xd0)
> +#define PCIE_RC_CONFIG_L1_SUBSTATE_CTRL2 (PCIE_RC_CONFIG_BASE + 0x90c)
> +#define PCIE_RC_CONFIG_THP_CAP (PCIE_RC_CONFIG_BASE + 0x274)
> +#define PCIE_RC_CONFIG_THP_CAP_NEXT_MASK GENMASK(31, 20)
> +
> +#define PCIE_CORE_AXI_CONF_BASE 0xc00000
> +#define PCIE_CORE_OB_REGION_ADDR0 (PCIE_CORE_AXI_CONF_BASE + 0x0)
> +#define PCIE_CORE_OB_REGION_ADDR0_NUM_BITS 0x3f
> +#define PCIE_CORE_OB_REGION_ADDR0_LO_ADDR 0xffffff00
> +#define PCIE_CORE_OB_REGION_ADDR1 (PCIE_CORE_AXI_CONF_BASE + 0x4)
> +#define PCIE_CORE_OB_REGION_DESC0 (PCIE_CORE_AXI_CONF_BASE + 0x8)
> +#define PCIE_CORE_OB_REGION_DESC1 (PCIE_CORE_AXI_CONF_BASE + 0xc)
> +
> +#define PCIE_CORE_AXI_INBOUND_BASE 0xc00800
> +#define PCIE_RP_IB_ADDR0 (PCIE_CORE_AXI_INBOUND_BASE + 0x0)
> +#define PCIE_CORE_IB_REGION_ADDR0_NUM_BITS 0x3f
> +#define PCIE_CORE_IB_REGION_ADDR0_LO_ADDR 0xffffff00
> +#define PCIE_RP_IB_ADDR1 (PCIE_CORE_AXI_INBOUND_BASE + 0x4)
> +
> +/* Size of one AXI Region (not Region 0) */
> +#define AXI_REGION_SIZE BIT(20)
> +/* Size of Region 0, equal to sum of sizes of other regions */
> +#define AXI_REGION_0_SIZE (32 * (0x1 << 20))
> +#define OB_REG_SIZE_SHIFT 5
> +#define IB_ROOT_PORT_REG_SIZE_SHIFT 3
> +#define AXI_WRAPPER_IO_WRITE 0x6
> +#define AXI_WRAPPER_MEM_WRITE 0x2
> +#define AXI_WRAPPER_TYPE0_CFG 0xa
> +#define AXI_WRAPPER_TYPE1_CFG 0xb
> +#define AXI_WRAPPER_NOR_MSG 0xc
> +
> +#define MAX_AXI_IB_ROOTPORT_REGION_NUM 3
> +#define MIN_AXI_ADDR_BITS_PASSED 8
> +#define PCIE_RC_SEND_PME_OFF 0x11960
> +#define ROCKCHIP_VENDOR_ID 0x1d87
> +#define PCIE_ECAM_BUS(x) (((x) & 0xff) << 20)
> +#define PCIE_ECAM_DEV(x) (((x) & 0x1f) << 15)
> +#define PCIE_ECAM_FUNC(x) (((x) & 0x7) << 12)
> +#define PCIE_ECAM_REG(x) (((x) & 0xfff) << 0)
> +#define PCIE_ECAM_ADDR(bus, dev, func, reg) \
> + (PCIE_ECAM_BUS(bus) | PCIE_ECAM_DEV(dev) | \
> + PCIE_ECAM_FUNC(func) | PCIE_ECAM_REG(reg))
> +#define PCIE_LINK_IS_L2(x) \
> + (((x) & PCIE_CLIENT_DEBUG_LTSSM_MASK) == PCIE_CLIENT_DEBUG_LTSSM_L2)
> +#define PCIE_LINK_UP(x) \
> + (((x) & PCIE_CLIENT_LINK_STATUS_MASK) == PCIE_CLIENT_LINK_STATUS_UP)
> +#define PCIE_LINK_IS_GEN2(x) \
> + (((x) & PCIE_CORE_PL_CONF_SPEED_MASK) == PCIE_CORE_PL_CONF_SPEED_5G)
> +
> +#define RC_REGION_0_ADDR_TRANS_H 0x00000000
> +#define RC_REGION_0_ADDR_TRANS_L 0x00000000
> +#define RC_REGION_0_PASS_BITS (25 - 1)
> +#define RC_REGION_0_TYPE_MASK GENMASK(3, 0)
> +#define MAX_AXI_WRAPPER_REGION_NUM 33
> +
> +struct rockchip_pcie {
> + void __iomem *reg_base; /* DT axi-base */
> + void __iomem *apb_base; /* DT apb-base */
> + bool legacy_phy;
> + struct phy *phys[MAX_LANE_NUM];
> + struct reset_control *core_rst;
> + struct reset_control *mgmt_rst;
> + struct reset_control *mgmt_sticky_rst;
> + struct reset_control *pipe_rst;
> + struct reset_control *pm_rst;
> + struct reset_control *aclk_rst;
> + struct reset_control *pclk_rst;
> + struct clk *aclk_pcie;
> + struct clk *aclk_perf_pcie;
> + struct clk *hclk_pcie;
> + struct clk *clk_pcie_pm;
> + struct regulator *vpcie12v; /* 12V power supply */
> + struct regulator *vpcie3v3; /* 3.3V power supply */
> + struct regulator *vpcie1v8; /* 1.8V power supply */
> + struct regulator *vpcie0v9; /* 0.9V power supply */
> + struct gpio_desc *ep_gpio;
> + u32 lanes;
> + u8 lanes_map;
> + u8 root_bus_nr;
> + int link_gen;
> + struct device *dev;
> + struct irq_domain *irq_domain;
> + int offset;
> + struct pci_bus *root_bus;
> + struct resource *io;
> + phys_addr_t io_bus_addr;
> + u32 io_size;
> + void __iomem *msg_region;
> + u32 mem_size;
> + phys_addr_t msg_bus_addr;
> + phys_addr_t mem_bus_addr;
> +};
> +
> +
Remove one empty line.
Thanks,
Lorenzo
> +static u32 rockchip_pcie_read(struct rockchip_pcie *rockchip, u32 reg)
> +{
> + return readl(rockchip->apb_base + reg);
> +}
> +
> +static void rockchip_pcie_write(struct rockchip_pcie *rockchip, u32 val,
> + u32 reg)
> +{
> + writel(val, rockchip->apb_base + reg);
> +}
> +
> +int rockchip_pcie_get_phys(struct rockchip_pcie *rockchip);
> +void rockchip_pcie_deinit_phys(struct rockchip_pcie *rockchip);
> +int rockchip_pcie_enable_clocks(struct rockchip_pcie *rockchip);
> +void rockchip_pcie_disable_clocks(void *data);
> +void rockchip_pcie_cfg_configuration_accesses(
> + struct rockchip_pcie *rockchip, u32 type);
> +
> +#endif /* _PCIE_ROCKCHIP_H */
> --
> 1.9.1
>
>
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