| /* SPDX-License-Identifier: GPL-2.0-only */ |
| /* |
| * arch/arm/mach-ixp4xx/include/mach/ixp4xx-regs.h |
| * |
| * Register definitions for IXP4xx chipset. This file contains |
| * register location and bit definitions only. Platform specific |
| * definitions and helper function declarations are in platform.h |
| * and machine-name.h. |
| * |
| * Copyright (C) 2002 Intel Corporation. |
| * Copyright (C) 2003-2004 MontaVista Software, Inc. |
| */ |
| |
| #ifndef _ASM_ARM_IXP4XX_H_ |
| #define _ASM_ARM_IXP4XX_H_ |
| |
| /* |
| * IXP4xx Linux Memory Map: |
| * |
| * Phy Size Virt Description |
| * ========================================================================= |
| * |
| * 0x00000000 0x10000000(max) PAGE_OFFSET System RAM |
| * |
| * 0x48000000 0x04000000 ioremap'd PCI Memory Space |
| * |
| * 0x50000000 0x10000000 ioremap'd EXP BUS |
| * |
| * 0xC8000000 0x00013000 0xFEF00000 On-Chip Peripherals |
| * |
| * 0xC0000000 0x00001000 0xFEF13000 PCI CFG |
| * |
| * 0xC4000000 0x00001000 0xFEF14000 EXP CFG |
| * |
| * 0x60000000 0x00004000 0xFEF15000 QMgr |
| */ |
| |
| /* |
| * Queue Manager |
| */ |
| #define IXP4XX_QMGR_BASE_PHYS 0x60000000 |
| |
| /* |
| * Peripheral space, including debug UART. Must be section-aligned so that |
| * it can be used with the low-level debug code. |
| */ |
| #define IXP4XX_PERIPHERAL_BASE_PHYS 0xC8000000 |
| #define IXP4XX_PERIPHERAL_BASE_VIRT IOMEM(0xFEC00000) |
| #define IXP4XX_PERIPHERAL_REGION_SIZE 0x00013000 |
| |
| /* |
| * PCI Config registers |
| */ |
| #define IXP4XX_PCI_CFG_BASE_PHYS 0xC0000000 |
| #define IXP4XX_PCI_CFG_BASE_VIRT IOMEM(0xFEC13000) |
| #define IXP4XX_PCI_CFG_REGION_SIZE 0x00001000 |
| |
| /* |
| * Expansion BUS Configuration registers |
| */ |
| #define IXP4XX_EXP_CFG_BASE_PHYS 0xC4000000 |
| #define IXP4XX_EXP_CFG_BASE_VIRT 0xFEC14000 |
| #define IXP4XX_EXP_CFG_REGION_SIZE 0x00001000 |
| |
| #define IXP4XX_EXP_CS0_OFFSET 0x00 |
| #define IXP4XX_EXP_CS1_OFFSET 0x04 |
| #define IXP4XX_EXP_CS2_OFFSET 0x08 |
| #define IXP4XX_EXP_CS3_OFFSET 0x0C |
| #define IXP4XX_EXP_CS4_OFFSET 0x10 |
| #define IXP4XX_EXP_CS5_OFFSET 0x14 |
| #define IXP4XX_EXP_CS6_OFFSET 0x18 |
| #define IXP4XX_EXP_CS7_OFFSET 0x1C |
| #define IXP4XX_EXP_CFG0_OFFSET 0x20 |
| #define IXP4XX_EXP_CFG1_OFFSET 0x24 |
| #define IXP4XX_EXP_CFG2_OFFSET 0x28 |
| #define IXP4XX_EXP_CFG3_OFFSET 0x2C |
| |
| /* |
| * Expansion Bus Controller registers. |
| */ |
| #define IXP4XX_EXP_REG(x) ((volatile u32 __iomem *)(IXP4XX_EXP_CFG_BASE_VIRT+(x))) |
| |
| #define IXP4XX_EXP_CS0 IXP4XX_EXP_REG(IXP4XX_EXP_CS0_OFFSET) |
| #define IXP4XX_EXP_CS1 IXP4XX_EXP_REG(IXP4XX_EXP_CS1_OFFSET) |
| #define IXP4XX_EXP_CS2 IXP4XX_EXP_REG(IXP4XX_EXP_CS2_OFFSET) |
| #define IXP4XX_EXP_CS3 IXP4XX_EXP_REG(IXP4XX_EXP_CS3_OFFSET) |
| #define IXP4XX_EXP_CS4 IXP4XX_EXP_REG(IXP4XX_EXP_CS4_OFFSET) |
| #define IXP4XX_EXP_CS5 IXP4XX_EXP_REG(IXP4XX_EXP_CS5_OFFSET) |
| #define IXP4XX_EXP_CS6 IXP4XX_EXP_REG(IXP4XX_EXP_CS6_OFFSET) |
| #define IXP4XX_EXP_CS7 IXP4XX_EXP_REG(IXP4XX_EXP_CS7_OFFSET) |
| |
| #define IXP4XX_EXP_CFG0 IXP4XX_EXP_REG(IXP4XX_EXP_CFG0_OFFSET) |
| #define IXP4XX_EXP_CFG1 IXP4XX_EXP_REG(IXP4XX_EXP_CFG1_OFFSET) |
| #define IXP4XX_EXP_CFG2 IXP4XX_EXP_REG(IXP4XX_EXP_CFG2_OFFSET) |
| #define IXP4XX_EXP_CFG3 IXP4XX_EXP_REG(IXP4XX_EXP_CFG3_OFFSET) |
| |
| |
| /* |
| * Peripheral Space Register Region Base Addresses |
| */ |
| #define IXP4XX_UART1_BASE_PHYS (IXP4XX_PERIPHERAL_BASE_PHYS + 0x0000) |
| #define IXP4XX_UART2_BASE_PHYS (IXP4XX_PERIPHERAL_BASE_PHYS + 0x1000) |
| #define IXP4XX_PMU_BASE_PHYS (IXP4XX_PERIPHERAL_BASE_PHYS + 0x2000) |
| #define IXP4XX_INTC_BASE_PHYS (IXP4XX_PERIPHERAL_BASE_PHYS + 0x3000) |
| #define IXP4XX_GPIO_BASE_PHYS (IXP4XX_PERIPHERAL_BASE_PHYS + 0x4000) |
| #define IXP4XX_TIMER_BASE_PHYS (IXP4XX_PERIPHERAL_BASE_PHYS + 0x5000) |
| #define IXP4XX_NPEA_BASE_PHYS (IXP4XX_PERIPHERAL_BASE_PHYS + 0x6000) |
| #define IXP4XX_NPEB_BASE_PHYS (IXP4XX_PERIPHERAL_BASE_PHYS + 0x7000) |
| #define IXP4XX_NPEC_BASE_PHYS (IXP4XX_PERIPHERAL_BASE_PHYS + 0x8000) |
| #define IXP4XX_EthB_BASE_PHYS (IXP4XX_PERIPHERAL_BASE_PHYS + 0x9000) |
| #define IXP4XX_EthC_BASE_PHYS (IXP4XX_PERIPHERAL_BASE_PHYS + 0xA000) |
| #define IXP4XX_USB_BASE_PHYS (IXP4XX_PERIPHERAL_BASE_PHYS + 0xB000) |
| /* ixp46X only */ |
| #define IXP4XX_EthA_BASE_PHYS (IXP4XX_PERIPHERAL_BASE_PHYS + 0xC000) |
| #define IXP4XX_EthB1_BASE_PHYS (IXP4XX_PERIPHERAL_BASE_PHYS + 0xD000) |
| #define IXP4XX_EthB2_BASE_PHYS (IXP4XX_PERIPHERAL_BASE_PHYS + 0xE000) |
| #define IXP4XX_EthB3_BASE_PHYS (IXP4XX_PERIPHERAL_BASE_PHYS + 0xF000) |
| #define IXP4XX_TIMESYNC_BASE_PHYS (IXP4XX_PERIPHERAL_BASE_PHYS + 0x10000) |
| #define IXP4XX_I2C_BASE_PHYS (IXP4XX_PERIPHERAL_BASE_PHYS + 0x11000) |
| #define IXP4XX_SSP_BASE_PHYS (IXP4XX_PERIPHERAL_BASE_PHYS + 0x12000) |
| |
| |
| /* The UART is explicitly put in the beginning of fixmap */ |
| #define IXP4XX_UART1_BASE_VIRT (IXP4XX_PERIPHERAL_BASE_VIRT + 0x0000) |
| #define IXP4XX_UART2_BASE_VIRT (IXP4XX_PERIPHERAL_BASE_VIRT + 0x1000) |
| #define IXP4XX_PMU_BASE_VIRT (IXP4XX_PERIPHERAL_BASE_VIRT + 0x2000) |
| #define IXP4XX_INTC_BASE_VIRT (IXP4XX_PERIPHERAL_BASE_VIRT + 0x3000) |
| #define IXP4XX_GPIO_BASE_VIRT (IXP4XX_PERIPHERAL_BASE_VIRT + 0x4000) |
| #define IXP4XX_TIMER_BASE_VIRT (IXP4XX_PERIPHERAL_BASE_VIRT + 0x5000) |
| #define IXP4XX_EthB_BASE_VIRT (IXP4XX_PERIPHERAL_BASE_VIRT + 0x9000) |
| #define IXP4XX_EthC_BASE_VIRT (IXP4XX_PERIPHERAL_BASE_VIRT + 0xA000) |
| #define IXP4XX_USB_BASE_VIRT (IXP4XX_PERIPHERAL_BASE_VIRT + 0xB000) |
| /* ixp46X only */ |
| #define IXP4XX_EthA_BASE_VIRT (IXP4XX_PERIPHERAL_BASE_VIRT + 0xC000) |
| #define IXP4XX_EthB1_BASE_VIRT (IXP4XX_PERIPHERAL_BASE_VIRT + 0xD000) |
| #define IXP4XX_EthB2_BASE_VIRT (IXP4XX_PERIPHERAL_BASE_VIRT + 0xE000) |
| #define IXP4XX_EthB3_BASE_VIRT (IXP4XX_PERIPHERAL_BASE_VIRT + 0xF000) |
| #define IXP4XX_TIMESYNC_BASE_VIRT (IXP4XX_PERIPHERAL_BASE_VIRT + 0x10000) |
| #define IXP4XX_I2C_BASE_VIRT (IXP4XX_PERIPHERAL_BASE_VIRT + 0x11000) |
| #define IXP4XX_SSP_BASE_VIRT (IXP4XX_PERIPHERAL_BASE_VIRT + 0x12000) |
| |
| /* |
| * Constants to make it easy to access Timer Control/Status registers |
| */ |
| #define IXP4XX_OSTS_OFFSET 0x00 /* Continious TimeStamp */ |
| #define IXP4XX_OST1_OFFSET 0x04 /* Timer 1 Timestamp */ |
| #define IXP4XX_OSRT1_OFFSET 0x08 /* Timer 1 Reload */ |
| #define IXP4XX_OST2_OFFSET 0x0C /* Timer 2 Timestamp */ |
| #define IXP4XX_OSRT2_OFFSET 0x10 /* Timer 2 Reload */ |
| #define IXP4XX_OSWT_OFFSET 0x14 /* Watchdog Timer */ |
| #define IXP4XX_OSWE_OFFSET 0x18 /* Watchdog Enable */ |
| #define IXP4XX_OSWK_OFFSET 0x1C /* Watchdog Key */ |
| #define IXP4XX_OSST_OFFSET 0x20 /* Timer Status */ |
| |
| /* |
| * Operating System Timer Register Definitions. |
| */ |
| |
| #define IXP4XX_TIMER_REG(x) ((volatile u32 *)(IXP4XX_TIMER_BASE_VIRT+(x))) |
| |
| #define IXP4XX_OSTS IXP4XX_TIMER_REG(IXP4XX_OSTS_OFFSET) |
| #define IXP4XX_OST1 IXP4XX_TIMER_REG(IXP4XX_OST1_OFFSET) |
| #define IXP4XX_OSRT1 IXP4XX_TIMER_REG(IXP4XX_OSRT1_OFFSET) |
| #define IXP4XX_OST2 IXP4XX_TIMER_REG(IXP4XX_OST2_OFFSET) |
| #define IXP4XX_OSRT2 IXP4XX_TIMER_REG(IXP4XX_OSRT2_OFFSET) |
| #define IXP4XX_OSWT IXP4XX_TIMER_REG(IXP4XX_OSWT_OFFSET) |
| #define IXP4XX_OSWE IXP4XX_TIMER_REG(IXP4XX_OSWE_OFFSET) |
| #define IXP4XX_OSWK IXP4XX_TIMER_REG(IXP4XX_OSWK_OFFSET) |
| #define IXP4XX_OSST IXP4XX_TIMER_REG(IXP4XX_OSST_OFFSET) |
| |
| /* |
| * Timer register values and bit definitions |
| */ |
| #define IXP4XX_OST_ENABLE 0x00000001 |
| #define IXP4XX_OST_ONE_SHOT 0x00000002 |
| /* Low order bits of reload value ignored */ |
| #define IXP4XX_OST_RELOAD_MASK 0x00000003 |
| #define IXP4XX_OST_DISABLED 0x00000000 |
| #define IXP4XX_OSST_TIMER_1_PEND 0x00000001 |
| #define IXP4XX_OSST_TIMER_2_PEND 0x00000002 |
| #define IXP4XX_OSST_TIMER_TS_PEND 0x00000004 |
| #define IXP4XX_OSST_TIMER_WDOG_PEND 0x00000008 |
| #define IXP4XX_OSST_TIMER_WARM_RESET 0x00000010 |
| |
| #define IXP4XX_WDT_KEY 0x0000482E |
| |
| #define IXP4XX_WDT_RESET_ENABLE 0x00000001 |
| #define IXP4XX_WDT_IRQ_ENABLE 0x00000002 |
| #define IXP4XX_WDT_COUNT_ENABLE 0x00000004 |
| |
| |
| /* |
| * Constants to make it easy to access PCI Control/Status registers |
| */ |
| #define PCI_NP_AD_OFFSET 0x00 |
| #define PCI_NP_CBE_OFFSET 0x04 |
| #define PCI_NP_WDATA_OFFSET 0x08 |
| #define PCI_NP_RDATA_OFFSET 0x0c |
| #define PCI_CRP_AD_CBE_OFFSET 0x10 |
| #define PCI_CRP_WDATA_OFFSET 0x14 |
| #define PCI_CRP_RDATA_OFFSET 0x18 |
| #define PCI_CSR_OFFSET 0x1c |
| #define PCI_ISR_OFFSET 0x20 |
| #define PCI_INTEN_OFFSET 0x24 |
| #define PCI_DMACTRL_OFFSET 0x28 |
| #define PCI_AHBMEMBASE_OFFSET 0x2c |
| #define PCI_AHBIOBASE_OFFSET 0x30 |
| #define PCI_PCIMEMBASE_OFFSET 0x34 |
| #define PCI_AHBDOORBELL_OFFSET 0x38 |
| #define PCI_PCIDOORBELL_OFFSET 0x3C |
| #define PCI_ATPDMA0_AHBADDR_OFFSET 0x40 |
| #define PCI_ATPDMA0_PCIADDR_OFFSET 0x44 |
| #define PCI_ATPDMA0_LENADDR_OFFSET 0x48 |
| #define PCI_ATPDMA1_AHBADDR_OFFSET 0x4C |
| #define PCI_ATPDMA1_PCIADDR_OFFSET 0x50 |
| #define PCI_ATPDMA1_LENADDR_OFFSET 0x54 |
| |
| /* |
| * PCI Control/Status Registers |
| */ |
| #define _IXP4XX_PCI_CSR(x) ((volatile u32 *)(IXP4XX_PCI_CFG_BASE_VIRT+(x))) |
| |
| #define PCI_NP_AD _IXP4XX_PCI_CSR(PCI_NP_AD_OFFSET) |
| #define PCI_NP_CBE _IXP4XX_PCI_CSR(PCI_NP_CBE_OFFSET) |
| #define PCI_NP_WDATA _IXP4XX_PCI_CSR(PCI_NP_WDATA_OFFSET) |
| #define PCI_NP_RDATA _IXP4XX_PCI_CSR(PCI_NP_RDATA_OFFSET) |
| #define PCI_CRP_AD_CBE _IXP4XX_PCI_CSR(PCI_CRP_AD_CBE_OFFSET) |
| #define PCI_CRP_WDATA _IXP4XX_PCI_CSR(PCI_CRP_WDATA_OFFSET) |
| #define PCI_CRP_RDATA _IXP4XX_PCI_CSR(PCI_CRP_RDATA_OFFSET) |
| #define PCI_CSR _IXP4XX_PCI_CSR(PCI_CSR_OFFSET) |
| #define PCI_ISR _IXP4XX_PCI_CSR(PCI_ISR_OFFSET) |
| #define PCI_INTEN _IXP4XX_PCI_CSR(PCI_INTEN_OFFSET) |
| #define PCI_DMACTRL _IXP4XX_PCI_CSR(PCI_DMACTRL_OFFSET) |
| #define PCI_AHBMEMBASE _IXP4XX_PCI_CSR(PCI_AHBMEMBASE_OFFSET) |
| #define PCI_AHBIOBASE _IXP4XX_PCI_CSR(PCI_AHBIOBASE_OFFSET) |
| #define PCI_PCIMEMBASE _IXP4XX_PCI_CSR(PCI_PCIMEMBASE_OFFSET) |
| #define PCI_AHBDOORBELL _IXP4XX_PCI_CSR(PCI_AHBDOORBELL_OFFSET) |
| #define PCI_PCIDOORBELL _IXP4XX_PCI_CSR(PCI_PCIDOORBELL_OFFSET) |
| #define PCI_ATPDMA0_AHBADDR _IXP4XX_PCI_CSR(PCI_ATPDMA0_AHBADDR_OFFSET) |
| #define PCI_ATPDMA0_PCIADDR _IXP4XX_PCI_CSR(PCI_ATPDMA0_PCIADDR_OFFSET) |
| #define PCI_ATPDMA0_LENADDR _IXP4XX_PCI_CSR(PCI_ATPDMA0_LENADDR_OFFSET) |
| #define PCI_ATPDMA1_AHBADDR _IXP4XX_PCI_CSR(PCI_ATPDMA1_AHBADDR_OFFSET) |
| #define PCI_ATPDMA1_PCIADDR _IXP4XX_PCI_CSR(PCI_ATPDMA1_PCIADDR_OFFSET) |
| #define PCI_ATPDMA1_LENADDR _IXP4XX_PCI_CSR(PCI_ATPDMA1_LENADDR_OFFSET) |
| |
| /* |
| * PCI register values and bit definitions |
| */ |
| |
| /* CSR bit definitions */ |
| #define PCI_CSR_HOST 0x00000001 |
| #define PCI_CSR_ARBEN 0x00000002 |
| #define PCI_CSR_ADS 0x00000004 |
| #define PCI_CSR_PDS 0x00000008 |
| #define PCI_CSR_ABE 0x00000010 |
| #define PCI_CSR_DBT 0x00000020 |
| #define PCI_CSR_ASE 0x00000100 |
| #define PCI_CSR_IC 0x00008000 |
| |
| /* ISR (Interrupt status) Register bit definitions */ |
| #define PCI_ISR_PSE 0x00000001 |
| #define PCI_ISR_PFE 0x00000002 |
| #define PCI_ISR_PPE 0x00000004 |
| #define PCI_ISR_AHBE 0x00000008 |
| #define PCI_ISR_APDC 0x00000010 |
| #define PCI_ISR_PADC 0x00000020 |
| #define PCI_ISR_ADB 0x00000040 |
| #define PCI_ISR_PDB 0x00000080 |
| |
| /* INTEN (Interrupt Enable) Register bit definitions */ |
| #define PCI_INTEN_PSE 0x00000001 |
| #define PCI_INTEN_PFE 0x00000002 |
| #define PCI_INTEN_PPE 0x00000004 |
| #define PCI_INTEN_AHBE 0x00000008 |
| #define PCI_INTEN_APDC 0x00000010 |
| #define PCI_INTEN_PADC 0x00000020 |
| #define PCI_INTEN_ADB 0x00000040 |
| #define PCI_INTEN_PDB 0x00000080 |
| |
| /* |
| * Shift value for byte enable on NP cmd/byte enable register |
| */ |
| #define IXP4XX_PCI_NP_CBE_BESL 4 |
| |
| /* |
| * PCI commands supported by NP access unit |
| */ |
| #define NP_CMD_IOREAD 0x2 |
| #define NP_CMD_IOWRITE 0x3 |
| #define NP_CMD_CONFIGREAD 0xa |
| #define NP_CMD_CONFIGWRITE 0xb |
| #define NP_CMD_MEMREAD 0x6 |
| #define NP_CMD_MEMWRITE 0x7 |
| |
| /* |
| * Constants for CRP access into local config space |
| */ |
| #define CRP_AD_CBE_BESL 20 |
| #define CRP_AD_CBE_WRITE 0x00010000 |
| |
| #define DCMD_LENGTH 0x01fff /* length mask (max = 8K - 1) */ |
| |
| #endif |
