| /* Copyright (c) 2012-2013, The Linux Foundation. All rights reserved. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 and |
| * only version 2 as published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| */ |
| |
| #ifndef __PCIE_EXYNOS_H |
| #define __PCIE_EXYNOS_H |
| |
| #define MAX_TIMEOUT 2000 |
| #define ID_MASK 0xffff |
| #define MAX_RC_NUM 2 |
| |
| #if defined(CONFIG_SOC_EXYNOS8890) |
| #define PCI_DEVICE_ID_EXYNOS 0xa544 |
| #define GPIO_DEBUG_SFR 0x15601068 |
| #else |
| #define PCI_DEVICE_ID_EXYNOS 0xecec |
| #define GPIO_DEBUG_SFR 0x0 |
| #endif |
| |
| #define to_exynos_pcie(x) container_of(x, struct exynos_pcie, pp) |
| |
| #define PCIE_BUS_PRIV_DATA(pdev) \ |
| ((struct pcie_port *)pdev->bus->sysdata) |
| |
| struct regmap; |
| |
| struct exynos_pcie_clks { |
| struct clk *pcie_clks[10]; |
| struct clk *phy_clks[3]; |
| }; |
| |
| enum exynos_pcie_state { |
| STATE_LINK_DOWN = 0, |
| STATE_LINK_UP_TRY, |
| STATE_LINK_DOWN_TRY, |
| STATE_LINK_UP, |
| }; |
| |
| struct pcie_phyops { |
| void (*phy_check_rx_elecidle)(void *phy_pcs_base_regs, int val); |
| void (*phy_all_pwrdn)(void *phy_base_regs, void *sysreg_base_regs, int ch_num); |
| void (*phy_all_pwrdn_clear)(void *phy_base_regs, void *sysreg_base_regs, int ch_num); |
| void (*phy_config)(void *phy_base_regs, void *phy_pcs_base_regs, |
| void *sysreg_base_regs, void *elbi_base_regs, int ch_num); |
| void (*phy_config_regmap)(void *phy_base_regs, void *phy_pcs_base_regs, |
| struct regmap *sysreg_phandle, void *elbi_base_regs, int ch_num); |
| }; |
| |
| struct exynos_pcie { |
| void __iomem *elbi_base; |
| void __iomem *phy_base; |
| void __iomem *block_base; |
| void __iomem *rc_dbi_base; |
| void __iomem *phy_pcs_base; |
| struct regmap *pmureg; |
| struct regmap *sysreg; |
| int perst_gpio; |
| int ch_num; |
| int pcie_clk_num; |
| int phy_clk_num; |
| enum exynos_pcie_state state; |
| int probe_ok; |
| int l1ss_enable; |
| int linkdown_cnt; |
| int idle_ip_index; |
| bool use_msi; |
| bool use_cache_coherency; |
| bool use_sicd; |
| spinlock_t conf_lock; |
| struct workqueue_struct *pcie_wq; |
| struct exynos_pcie_clks clks; |
| struct pcie_port pp; |
| struct pci_dev *pci_dev; |
| struct pci_saved_state *pci_saved_configs; |
| struct notifier_block lpa_nb; |
| struct notifier_block ss_dma_mon_nb; |
| struct delayed_work work; |
| struct exynos_pcie_register_event *event_reg; |
| #ifdef CONFIG_PCI_EXYNOS_TEST |
| int wlan_gpio; |
| int bt_gpio; |
| #endif |
| #ifdef CONFIG_PM_DEVFREQ |
| unsigned int int_min_lock; |
| #endif |
| u32 ip_ver; |
| struct pcie_phyops phy_ops; |
| int pcie_irq_toe_enable; |
| int pcie_irq_toe_num; |
| int pcie_irq_msi_cp_enable; |
| int pcie_irq_msi_cp_base_bit; |
| int pcie_irq_msi_cp_num; |
| int l1ss_ctrl_id_state; |
| struct workqueue_struct *pcie_wq_l1ss; |
| struct delayed_work work_l1ss; |
| int boot_cnt; |
| int work_l1ss_cnt; |
| }; |
| |
| /* PCIe ELBI registers */ |
| #define PCIE_IRQ_PULSE 0x000 |
| #define IRQ_INTA_ASSERT (0x1 << 0) |
| #define IRQ_INTB_ASSERT (0x1 << 2) |
| #define IRQ_INTC_ASSERT (0x1 << 4) |
| #define IRQ_INTD_ASSERT (0x1 << 6) |
| #define IRQ_MSI_RISING_ASSERT (0x1 << 29) |
| #define IRQ_MSI_FALLING_ASSERT (0x1 << 28) |
| #define IRQ_RADM_PM_TO_ACK (0x1 << 18) |
| #define IRQ_L1_EXIT (0x1 << 24) |
| #define PCIE_IRQ_LEVEL 0x004 |
| #define IRQ_MSI_CTRL (0x1 << 1) |
| #define PCIE_IRQ_SPECIAL 0x008 |
| #define PCIE_IRQ_EN_PULSE 0x00c |
| #define IRQ_MSI_CTRL_EN_RISING_EDG (0x1 << 29) |
| #define IRQ_MSI_CTRL_EN_FALLING_EDG (0x1 << 28) |
| #define PCIE_IRQ_EN_LEVEL 0x010 |
| #define IRQ_MSI_ENABLE (0x1 << 1) |
| #define IRQ_LINK_DOWN (0x1 << 30) |
| #define IRQ_LINKDOWN_ENABLE (0x1 << 30) |
| #define PCIE_IRQ_EN_SPECIAL 0x014 |
| #define PCIE_SW_WAKE 0x018 |
| #define PCIE_IRQ_LEVEL_FOR_READ 0x020 |
| #define L1_2_IDLE_STATE (0x1 << 23) |
| #define IRQ_MSI_EN_CHECK(x) (((x) >> 6) & 0x1) |
| #define PCIE_APP_LTSSM_ENABLE 0x02c |
| #define PCIE_IRQ_TOE_EN_PULSE 0x030 |
| #define PCIE_IRQ_TOE_EN_PULSE2 0x034 |
| #define PCIE_IRQ_TOE_EN_LEVEL 0x038 |
| #define PCIE_L1_BUG_FIX_ENABLE 0x038 |
| #define PCIE_APP_REQ_EXIT_L1 0x040 |
| #define PCIE_CXPL_DEBUG_INFO_H 0x070 |
| #define PCIE_ELBI_RDLH_LINKUP 0x074 |
| #define PCIE_ELBI_LTSSM_DISABLE 0x0 |
| #define PCIE_ELBI_LTSSM_ENABLE 0x1 |
| #define PCIE_PM_DSTATE 0x88 |
| #define PCIE_D0_UNINIT_STATE 0x4 |
| #define PCIE_APP_REQ_EXIT_L1_MODE 0xF4 |
| #define APP_REQ_EXIT_L1_MODE 0x1 |
| #define L1_REQ_NAK_CONTROL (0x3 << 4) |
| #define L1_REQ_NAK_CONTROL_MASTER (0x1 << 4) |
| #define PCIE_HISTORY_REG(x) (0x138 + ((x) * 0x4)) |
| #define LTSSM_STATE(x) (((x) >> 16) & 0x3f) |
| #define PM_DSTATE(x) (((x) >> 8) & 0x7) |
| #define L1SUB_STATE(x) (((x) >> 0) & 0x7) |
| #define PCIE_LINKDOWN_RST_CTRL_SEL 0x1B8 |
| #define PCIE_LINKDOWN_RST_MANUAL (0x1 << 1) |
| #define PCIE_LINKDOWN_RST_FSM (0x1 << 0) |
| #define PCIE_SOFT_AUXCLK_SEL_CTRL 0x1C4 |
| #define CORE_CLK_GATING (0x1 << 0) |
| #define PCIE_SOFT_CORE_RESET 0x1D0 |
| #define PCIE_STATE_HISTORY_CHECK 0x274 |
| #define HISTORY_BUFFER_ENABLE (0x1 << 0) |
| #define HISTORY_BUFFER_CLEAR (0x1 << 1) |
| #define PCIE_QCH_SEL 0x2C8 |
| #define CLOCK_GATING_IN_L12 0x1 |
| #define CLOCK_NOT_GATING 0x3 |
| #define CLOCK_GATING_MASK 0x3 |
| #define CLOCK_GATING_PMU_L1 (0x1 << 11) |
| #define CLOCK_GATING_PMU_L23READY (0x1 << 10) |
| #define CLOCK_GATING_PMU_DETECT_QUIET (0x1 << 9) |
| #define CLOCK_GATING_PMU_L12 (0x1 << 8) |
| #define CLOCK_GATING_PMU_ALL (0xF << 8) |
| #define CLOCK_GATING_PMU_MASK (0xF << 8) |
| #define CLOCK_GATING_APB_L1 (0x1 << 7) |
| #define CLOCK_GATING_APB_L23READY (0x1 << 6) |
| #define CLOCK_GATING_APB_DETECT_QUIET (0x1 << 5) |
| #define CLOCK_GATING_APB_L12 (0X1 << 4) |
| #define CLOCK_GATING_APB_ALL (0xF << 4) |
| #define CLOCK_GATING_APB_MASK (0xF << 4) |
| #define CLOCK_GATING_AXI_L1 (0x1 << 3) |
| #define CLOCK_GATING_AXI_L23READY (0x1 << 2) |
| #define CLOCK_GATING_AXI_DETECT_QUIET (0x1 << 1) |
| #define CLOCK_GATING_AXI_L12 (0x1 << 0) |
| #define CLOCK_GATING_AXI_ALL (0xF << 0) |
| #define CLOCK_GATING_AXI_MASK (0xF << 0) |
| #define PCIE_DMA_MONITOR1 0x2CC |
| #define PCIE_DMA_MONITOR2 0x2D0 |
| #define PCIE_DMA_MONITOR3 0x2D4 |
| #define FSYS1_MON_SEL_MASK 0xf |
| #define PCIE_MON_SEL_MASK 0xff |
| #define PCIE_IRQ_CP_EN_PULSE 0x2DC |
| #define PCIE_IRQ_CP_EN_PULSE2 0x2E0 |
| #define PCIE_IRQ_CP_LEVEL 0x2E4 |
| #define PCIE_MSI_STATUS_IRQ_AP_ENABLE 0x2E8 |
| #define PCIE_MSI_STATUS_IRQ_CP_ENABLE 0x2EC |
| |
| /* PCIe PMU registers */ |
| #define IDLE_IP3_STATE 0x3EC |
| #define IDLE_IP_RC1_SHIFT (31) |
| #define IDLE_IP_RC0_SHIFT (30) |
| #define IDLE_IP3_MASK 0x3FC |
| #define PCIE_PHY_CONTROL 0x071C |
| #define PCIE_PHY_CONTROL_MASK 0x1 |
| |
| /* PCIe DBI registers */ |
| #define PM_CAP_ID_OFFSET 0x40 |
| #define EXP_CAP_ID_OFFSET 0x70 |
| #define PCI_EXP_LNKCAP_MLW_X1 (0x1 << 4) |
| #define PCI_EXP_LNKCAP_L1EL_64USEC (0x7 << 15) |
| #define PCI_EXP_LNKCTL2_TLS 0xf |
| #define PCI_EXP_LNKCTL2_TLS_2_5GB 0x1 |
| #define PCIE_LINK_L1SS_CONTROL 0x158 |
| #define PORT_LINK_TCOMMON_32US (0x20 << 8) |
| #define PCIE_LINK_L1SS_CONTROL2 0x15C |
| #define PORT_LINK_L1SS_ENABLE (0xf << 0) |
| #define PORT_LINK_TPOWERON_130US (0x69 << 0) |
| #define PORT_LINK_TPOWERON_3100US (0xfa << 0) |
| #define PCIE_LINK_L1SS_OFF 0xb44 |
| #define PORT_LINK_L1SS_T_PCLKACK (0x3 << 6) |
| #define PORT_LINK_L1SS_T_L1_2 (0x4 << 2) |
| #define PORT_LINK_L1SS_T_POWER_OFF (0x2 << 0) |
| #define PCIE_ACK_F_ASPM_CONTROL 0x70C |
| #define PCIE_PORT_LINK_CONTROL 0x710 |
| |
| #define PCIE_MISC_CONTROL 0x8BC |
| #define DBI_RO_WR_EN 0x1 |
| |
| #define PCIE_AUX_CLK_FREQ_OFF 0xB40 |
| #define PCIE_AUX_CLK_FREQ_24MHZ 0x18 |
| #define PCIE_AUX_CLK_FREQ_26MHZ 0x1A |
| #define PCIE_L1_SUBSTATES_OFF 0xB44 |
| |
| #define PCIE_LINK_WIDTH_SPEED_CONTROL 0x80C |
| #define PORT_LOGIC_SPEED_CHANGE (0x1 << 17) |
| |
| #define PCIE_ATU_VIEWPORT 0x900 |
| #define PCIE_ATU_REGION_INBOUND (0x1 << 31) |
| #define PCIE_ATU_REGION_OUTBOUND (0x0 << 31) |
| #define PCIE_ATU_REGION_INDEX2 (0x2 << 0) |
| #define PCIE_ATU_REGION_INDEX1 (0x1 << 0) |
| #define PCIE_ATU_REGION_INDEX0 (0x0 << 0) |
| #define PCIE_ATU_CR1 0x904 |
| #define PCIE_ATU_TYPE_MEM (0x0 << 0) |
| #define PCIE_ATU_TYPE_IO (0x2 << 0) |
| #define PCIE_ATU_TYPE_CFG0 (0x4 << 0) |
| #define PCIE_ATU_TYPE_CFG1 (0x5 << 0) |
| #define PCIE_ATU_CR2 0x908 |
| #define PCIE_ATU_ENABLE (0x1 << 31) |
| #define PCIE_ATU_BAR_MODE_ENABLE (0x1 << 30) |
| #define PCIE_ATU_LOWER_BASE 0x90C |
| #define PCIE_ATU_UPPER_BASE 0x910 |
| #define PCIE_ATU_LIMIT 0x914 |
| #define PCIE_ATU_LOWER_TARGET 0x918 |
| #define PCIE_ATU_BUS(x) (((x) & 0xff) << 24) |
| #define PCIE_ATU_DEV(x) (((x) & 0x1f) << 19) |
| #define PCIE_ATU_FUNC(x) (((x) & 0x7) << 16) |
| #define PCIE_ATU_UPPER_TARGET 0x91C |
| |
| #define PCIE_MSI_ADDR_LO 0x820 |
| #define PCIE_MSI_ADDR_HI 0x824 |
| #define PCIE_MSI_INTR0_ENABLE 0x828 |
| #define PCIE_MSI_INTR0_MASK 0x82C |
| #define PCIE_MSI_INTR0_STATUS 0x830 |
| |
| /* PCIe SYSREG registers */ |
| #define PCIE_WIFI0_PCIE_PHY_CONTROL 0xC |
| #define BIFURCATION_MODE_DISABLE (0x1 << 16) |
| #define LINK1_ENABLE (0x1 << 15) |
| #define LINK0_ENABLE (0x1 << 14) |
| #define PCS_LANE1_ENABLE (0x1 << 13) |
| #define PCS_LANE0_EANBLE (0x1 << 12) |
| |
| #define PCIE_SYSREG_SHARABILITY_CTRL 0x700 |
| #define PCIE_SYSREG_SHARABLE_OFFSET 8 |
| #define PCIE_SYSREG_SHARABLE_ENABLE 0x3 |
| #define PCIE_SYSREG_SHARABLE_DISABLE 0x0 |
| |
| void exynos_pcie_phy_init(struct pcie_port *pp); |
| #endif |