/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Copyright (C) 2015, Bin Meng <bmeng.cn@gmail.com>
*/
#ifndef _QUARK_H_
#define _QUARK_H_
/* Message Bus Ports */
#define MSG_PORT_MEM_ARBITER 0x00
#define MSG_PORT_HOST_BRIDGE 0x03
#define MSG_PORT_RMU 0x04
#define MSG_PORT_MEM_MGR 0x05
#define MSG_PORT_USB_AFE 0x14
#define MSG_PORT_PCIE_AFE 0x16
#define MSG_PORT_SOC_UNIT 0x31
/* Port 0x00: Memory Arbiter Message Port Registers */
/* Enhanced Configuration Space */
#define AEC_CTRL 0x00
/* Port 0x03: Host Bridge Message Port Registers */
/* Host Miscellaneous Controls 2 */
#define HMISC2 0x03
#define HMISC2_SEGE 0x00000002
#define HMISC2_SEGF 0x00000004
#define HMISC2_SEGAB 0x00000010
/* Host Memory I/O Boundary */
#define HM_BOUND 0x08
#define HM_BOUND_LOCK 0x00000001
/* Extended Configuration Space */
#define HEC_REG 0x09
/* MTRR Registers */
#define MTRR_CAP 0x40
#define MTRR_DEF_TYPE 0x41
#define MTRR_FIX_64K_00000 0x42
#define MTRR_FIX_64K_40000 0x43
#define MTRR_FIX_16K_80000 0x44
#define MTRR_FIX_16K_90000 0x45
#define MTRR_FIX_16K_A0000 0x46
#define MTRR_FIX_16K_B0000 0x47
#define MTRR_FIX_4K_C0000 0x48
#define MTRR_FIX_4K_C4000 0x49
#define MTRR_FIX_4K_C8000 0x4a
#define MTRR_FIX_4K_CC000 0x4b
#define MTRR_FIX_4K_D0000 0x4c
#define MTRR_FIX_4K_D4000 0x4d
#define MTRR_FIX_4K_D8000 0x4e
#define MTRR_FIX_4K_DC000 0x4f
#define MTRR_FIX_4K_E0000 0x50
#define MTRR_FIX_4K_E4000 0x51
#define MTRR_FIX_4K_E8000 0x52
#define MTRR_FIX_4K_EC000 0x53
#define MTRR_FIX_4K_F0000 0x54
#define MTRR_FIX_4K_F4000 0x55
#define MTRR_FIX_4K_F8000 0x56
#define MTRR_FIX_4K_FC000 0x57
#define MTRR_SMRR_PHYBASE 0x58
#define MTRR_SMRR_PHYMASK 0x59
#define MTRR_VAR_PHYBASE(n) (0x5a + 2 * (n))
#define MTRR_VAR_PHYMASK(n) (0x5b + 2 * (n))
#ifndef __ASSEMBLY__
/* variable range MTRR usage */
enum {
MTRR_VAR_ROM,
MTRR_VAR_ESRAM,
MTRR_VAR_RAM
};
#endif /* __ASSEMBLY__ */
/* Port 0x04: Remote Management Unit Message Port Registers */
/* ACPI PBLK Base Address Register */
#define PBLK_BA 0x70
/* Control Register */
#define RMU_CTRL 0x71
/* SPI DMA Base Address Register */
#define SPI_DMA_BA 0x7a
/* Thermal Sensor Register */
#define TS_MODE 0xb0
#define TS_TEMP 0xb1
#define TS_TRIP 0xb2
/* Port 0x05: Memory Manager Message Port Registers */
/* eSRAM Block Page Control */
#define ESRAM_BLK_CTRL 0x82
#define ESRAM_BLOCK_MODE 0x10000000
/* Port 0x14: USB2 AFE Unit Port Registers */
#define USB2_GLOBAL_PORT 0x4001
#define USB2_PLL1 0x7f02
#define USB2_PLL2 0x7f03
#define USB2_COMPBG 0x7f04
/* Port 0x16: PCIe AFE Unit Port Registers */
#define PCIE_RXPICTRL0_L0 0x2080
#define PCIE_RXPICTRL0_L1 0x2180
/* Port 0x31: SoC Unit Port Registers */
/* Thermal Sensor Config */
#define TS_CFG1 0x31
#define TS_CFG2 0x32
#define TS_CFG3 0x33
#define TS_CFG4 0x34
/* PCIe Controller Config */
#define PCIE_CFG 0x36
#define PCIE_CTLR_PRI_RST 0x00010000
#define PCIE_PHY_SB_RST 0x00020000
#define PCIE_CTLR_SB_RST 0x00040000
#define PCIE_PHY_LANE_RST 0x00090000
#define PCIE_CTLR_MAIN_RST 0x00100000
/* DRAM */
#define DRAM_BASE 0x00000000
#define DRAM_MAX_SIZE 0x80000000
/* eSRAM */
#define ESRAM_SIZE 0x80000
/* Memory BAR Enable */
#define MEM_BAR_EN 0x00000001
/* I/O BAR Enable */
#define IO_BAR_EN 0x80000000
/* 64KiB of RMU binary in flash */
#define RMU_BINARY_SIZE 0x10000
/* PCIe Root Port Configuration Registers */
#define PCIE_RP_CCFG 0xd0
#define CCFG_UPRS (1 << 14)
#define CCFG_UNRS (1 << 15)
#define CCFG_UNSD (1 << 23)
#define CCFG_UPSD (1 << 24)
#define PCIE_RP_MPC2 0xd4
#define MPC2_IPF (1 << 11)
#define PCIE_RP_MBC 0xf4
#define MBC_SBIC (3 << 16)
/* Legacy Bridge PCI Configuration Registers */
#define LB_GBA 0x44
#define LB_PM1BLK 0x48
#define LB_GPE0BLK 0x4c
#define LB_ACTL 0x58
#define LB_PABCDRC 0x60
#define LB_PEFGHRC 0x64
#define LB_WDTBA 0x84
#define LB_BCE 0xd4
#define LB_BC 0xd8
#define LB_RCBA 0xf0
/* USB EHCI memory-mapped registers */
#define EHCI_INSNREG01 0x94
/* USB device memory-mapped registers */
#define USBD_INT_MASK 0x410
#define USBD_EP_INT_STS 0x414
#define USBD_EP_INT_MASK 0x418
#ifndef __ASSEMBLY__
/* Root Complex Register Block */
struct quark_rcba {
u32 rctl;
u32 esd;
u32 rsvd1[3150];
u16 rmu_ir;
u16 d23_ir;
u16 core_ir;
u16 d20d21_ir;
};
#include <asm/io.h>
#include <asm/pci.h>
/**
* qrk_pci_read_config_dword() - Read a configuration value
*
* @dev: PCI device address: bus, device and function
* @offset: Dword offset within the device's configuration space
* @valuep: Place to put the returned value
*
* Note: This routine is inlined to provide better performance on Quark
*/
static inline void qrk_pci_read_config_dword(pci_dev_t dev, int offset,
u32 *valuep)
{
outl(dev | offset | PCI_CFG_EN, PCI_REG_ADDR);
*valuep = inl(PCI_REG_DATA);
}
/**
* qrk_pci_write_config_dword() - Write a PCI configuration value
*
* @dev: PCI device address: bus, device and function
* @offset: Dword offset within the device's configuration space
* @value: Value to write
*
* Note: This routine is inlined to provide better performance on Quark
*/
static inline void qrk_pci_write_config_dword(pci_dev_t dev, int offset,
u32 value)
{
outl(dev | offset | PCI_CFG_EN, PCI_REG_ADDR);
outl(value, PCI_REG_DATA);
}
/**
* board_assert_perst() - Assert the PERST# pin
*
* The CPU interface to the PERST# signal on Quark is platform dependent.
* Board-specific codes need supply this routine to assert PCIe slot reset.
*
* The tricky part in this routine is that any APIs that may trigger PCI
* enumeration process are strictly forbidden, as any access to PCIe root
* port's configuration registers will cause system hang while it is held
* in reset.
*/
void board_assert_perst(void);
/**
* board_deassert_perst() - De-assert the PERST# pin
*
* The CPU interface to the PERST# signal on Quark is platform dependent.
* Board-specific codes need supply this routine to de-assert PCIe slot reset.
*
* The tricky part in this routine is that any APIs that may trigger PCI
* enumeration process are strictly forbidden, as any access to PCIe root
* port's configuration registers will cause system hang while it is held
* in reset.
*/
void board_deassert_perst(void);
#endif /* __ASSEMBLY__ */
#endif /* _QUARK_H_ */