--- /dev/null
+/*
+ * include/asm-arm/arch-ixp2000/ixp2000-regs.h
+ *
+ * Chipset register definitions for IXP2400/2800 based systems.
+ *
+ * Original Author: Naeem Afzal <naeem.m.afzal@intel.com>
+ *
+ * Maintainer: Deepak Saxena <dsaxena@plexity.net>
+ *
+ * Copyright (C) 2002 Intel Corp.
+ * Copyright (C) 2003-2004 MontaVista Software, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+#ifndef _IXP2000_REGS_H_
+#define _IXP2000_REGS_H_
+
+/*
+ * Static I/O regions. The manual defines each region as being several
+ * MB in size, but all the registers are within the first 4K, so there's
+ * no purpose in mapping the whole region in.
+ */
+#define IXP2000_SLOWPORT_CSR_PHYS_BASE 0xc0080000
+#define IXP2000_SLOWPORT_CSR_VIRT_BASE 0xfefff000
+#define IXP2000_SLOWPORT_CSR_SIZE 0x1000
+
+#define IXP2000_GLOBAL_REG_PHYS_BASE 0xc0004000
+#define IXP2000_GLOBAL_REG_VIRT_BASE 0xfeffe000
+#define IXP2000_GLOBAL_REG_SIZE 0x1000
+
+#define IXP2000_UART_PHYS_BASE 0xc0030000
+#define IXP2000_UART_VIRT_BASE 0xfef30000
+#define IXP2000_UART_SIZE 0x1000
+
+#define IXP2000_TIMER_PHYS_BASE 0xc0020000
+#define IXP2000_TIMER_VIRT_BASE 0xfeffc000
+#define IXP2000_TIMER_SIZE 0x1000
+
+#define IXP2000_GPIO_PHYS_BASE 0xc0010000
+#define IXP2000_GPIO_VIRT_BASE 0xfeffb000
+#define IXP2000_GPIO_SIZE 0x1000
+
+#define IXP2000_INTCTL_PHYS_BASE 0xd6000000
+#define IXP2000_INTCTL_VIRT_BASE 0xfeffa000
+#define IXP2000_INTCTL_SIZE 0x01000
+
+#define IXP2000_PCI_CREG_PHYS_BASE 0xde000000
+#define IXP2000_PCI_CREG_VIRT_BASE 0xfeff0000
+#define IXP2000_PCI_CREG_SIZE 0x1000
+
+#define IXP2000_PCI_CSR_PHYS_BASE 0xdf000000
+#define IXP2000_PCI_CSR_VIRT_BASE 0xfefde000
+#define IXP2000_PCI_CSR_SIZE 0x1000
+
+#define IXP2000_PCI_IO_PHYS_BASE 0xd8000000
+#define IXP2000_PCI_IO_VIRT_BASE 0xfd000000
+#define IXP2000_PCI_IO_SIZE 0x01000000
+
+#define IXP2000_PCI_CFG0_PHYS_BASE 0xda000000
+#define IXP2000_PCI_CFG0_VIRT_BASE 0xfc000000
+#define IXP2000_PCI_CFG0_SIZE 0x01000000
+
+#define IXP2000_PCI_CFG1_PHYS_BASE 0xdb000000
+#define IXP2000_PCI_CFG1_VIRT_BASE 0xfb000000
+#define IXP2000_PCI_CFG1_SIZE 0x01000000
+
+
+/*
+ * Timers
+ */
+#define IXP2000_TIMER_REG(x) ((volatile unsigned long*)(IXP2000_TIMER_VIRT_BASE | (x)))
+/* Timer control */
+#define IXP2000_T1_CTL IXP2000_TIMER_REG(0x00)
+#define IXP2000_T2_CTL IXP2000_TIMER_REG(0x04)
+#define IXP2000_T3_CTL IXP2000_TIMER_REG(0x08)
+#define IXP2000_T4_CTL IXP2000_TIMER_REG(0x0c)
+/* Store initial value */
+#define IXP2000_T1_CLD IXP2000_TIMER_REG(0x10)
+#define IXP2000_T2_CLD IXP2000_TIMER_REG(0x14)
+#define IXP2000_T3_CLD IXP2000_TIMER_REG(0x18)
+#define IXP2000_T4_CLD IXP2000_TIMER_REG(0x1c)
+/* Read current value */
+#define IXP2000_T1_CSR IXP2000_TIMER_REG(0x20)
+#define IXP2000_T2_CSR IXP2000_TIMER_REG(0x24)
+#define IXP2000_T3_CSR IXP2000_TIMER_REG(0x28)
+#define IXP2000_T4_CSR IXP2000_TIMER_REG(0x2c)
+/* Clear associated timer interrupt */
+#define IXP2000_T1_CLR IXP2000_TIMER_REG(0x30)
+#define IXP2000_T2_CLR IXP2000_TIMER_REG(0x34)
+#define IXP2000_T3_CLR IXP2000_TIMER_REG(0x38)
+#define IXP2000_T4_CLR IXP2000_TIMER_REG(0x3c)
+/* Timer watchdog enable for T4 */
+#define IXP2000_TWDE IXP2000_TIMER_REG(0x40)
+
+#define WDT_ENABLE 0x00000001
+#define TIMER_DIVIDER_256 0x00000008
+#define TIMER_ENABLE 0x00000080
+
+/*
+ * Interrupt controller registers
+ */
+#define IXP2000_INTCTL_REG(x) (volatile unsigned long*)(IXP2000_INTCTL_VIRT_BASE | (x))
+#define IXP2000_IRQ_STATUS IXP2000_INTCTL_REG(0x08)
+#define IXP2000_IRQ_ENABLE IXP2000_INTCTL_REG(0x10)
+#define IXP2000_IRQ_ENABLE_SET IXP2000_INTCTL_REG(0x10)
+#define IXP2000_IRQ_ENABLE_CLR IXP2000_INTCTL_REG(0x18)
+#define IXP2000_FIQ_ENABLE_CLR IXP2000_INTCTL_REG(0x14)
+#define IXP2000_IRQ_ERR_STATUS IXP2000_INTCTL_REG(0x24)
+#define IXP2000_IRQ_ERR_ENABLE_SET IXP2000_INTCTL_REG(0x2c)
+#define IXP2000_FIQ_ERR_ENABLE_CLR IXP2000_INTCTL_REG(0x30)
+#define IXP2000_IRQ_ERR_ENABLE_CLR IXP2000_INTCTL_REG(0x34)
+
+/*
+ * Mask of valid IRQs in the 32-bit IRQ register. We use
+ * this to mark certain IRQs as being in-valid.
+ */
+#define IXP2000_VALID_IRQ_MASK 0x0f0fffff
+
+/*
+ * PCI config register access from core
+ */
+#define IXP2000_PCI_CREG(x) (volatile unsigned long*)(IXP2000_PCI_CREG_VIRT_BASE | (x))
+#define IXP2000_PCI_CMDSTAT IXP2000_PCI_CREG(0x04)
+#define IXP2000_PCI_CSR_BAR IXP2000_PCI_CREG(0x10)
+#define IXP2000_PCI_SRAM_BAR IXP2000_PCI_CREG(0x14)
+#define IXP2000_PCI_SDRAM_BAR IXP2000_PCI_CREG(0x18)
+
+/*
+ * PCI CSRs
+ */
+#define IXP2000_PCI_CSR(x) (volatile unsigned long*)(IXP2000_PCI_CSR_VIRT_BASE | (x))
+
+/*
+ * PCI outbound interrupts
+ */
+#define IXP2000_PCI_OUT_INT_STATUS IXP2000_PCI_CSR(0x30)
+#define IXP2000_PCI_OUT_INT_MASK IXP2000_PCI_CSR(0x34)
+/*
+ * PCI communications
+ */
+#define IXP2000_PCI_MAILBOX0 IXP2000_PCI_CSR(0x50)
+#define IXP2000_PCI_MAILBOX1 IXP2000_PCI_CSR(0x54)
+#define IXP2000_PCI_MAILBOX2 IXP2000_PCI_CSR(0x58)
+#define IXP2000_PCI_MAILBOX3 IXP2000_PCI_CSR(0x5C)
+#define IXP2000_XSCALE_DOORBELL IXP2000_PCI_CSR(0x60)
+#define IXP2000_XSCALE_DOORBELL_SETUP IXP2000_PCI_CSR(0x64)
+#define IXP2000_PCI_DOORBELL IXP2000_PCI_CSR(0x70)
+#define IXP2000_PCI_DOORBELL_SETUP IXP2000_PCI_CSR(0x74)
+
+/*
+ * DMA engines
+ */
+#define IXP2000_PCI_CH1_BYTE_CNT IXP2000_PCI_CSR(0x80)
+#define IXP2000_PCI_CH1_ADDR IXP2000_PCI_CSR(0x84)
+#define IXP2000_PCI_CH1_DRAM_ADDR IXP2000_PCI_CSR(0x88)
+#define IXP2000_PCI_CH1_DESC_PTR IXP2000_PCI_CSR(0x8C)
+#define IXP2000_PCI_CH1_CNTRL IXP2000_PCI_CSR(0x90)
+#define IXP2000_PCI_CH1_ME_PARAM IXP2000_PCI_CSR(0x94)
+#define IXP2000_PCI_CH2_BYTE_CNT IXP2000_PCI_CSR(0xA0)
+#define IXP2000_PCI_CH2_ADDR IXP2000_PCI_CSR(0xA4)
+#define IXP2000_PCI_CH2_DRAM_ADDR IXP2000_PCI_CSR(0xA8)
+#define IXP2000_PCI_CH2_DESC_PTR IXP2000_PCI_CSR(0xAC)
+#define IXP2000_PCI_CH2_CNTRL IXP2000_PCI_CSR(0xB0)
+#define IXP2000_PCI_CH2_ME_PARAM IXP2000_PCI_CSR(0xB4)
+#define IXP2000_PCI_CH3_BYTE_CNT IXP2000_PCI_CSR(0xC0)
+#define IXP2000_PCI_CH3_ADDR IXP2000_PCI_CSR(0xC4)
+#define IXP2000_PCI_CH3_DRAM_ADDR IXP2000_PCI_CSR(0xC8)
+#define IXP2000_PCI_CH3_DESC_PTR IXP2000_PCI_CSR(0xCC)
+#define IXP2000_PCI_CH3_CNTRL IXP2000_PCI_CSR(0xD0)
+#define IXP2000_PCI_CH3_ME_PARAM IXP2000_PCI_CSR(0xD4)
+#define IXP2000_DMA_INF_MODE IXP2000_PCI_CSR(0xE0)
+/*
+ * Size masks for BARs
+ */
+#define IXP2000_PCI_SRAM_BASE_ADDR_MASK IXP2000_PCI_CSR(0xFC)
+#define IXP2000_PCI_DRAM_BASE_ADDR_MASK IXP2000_PCI_CSR(0x100)
+/*
+ * Control and uEngine related
+ */
+#define IXP2000_PCI_CONTROL IXP2000_PCI_CSR(0x13C)
+#define IXP2000_PCI_ADDR_EXT IXP2000_PCI_CSR(0x140)
+#define IXP2000_PCI_ME_PUSH_STATUS IXP2000_PCI_CSR(0x148)
+#define IXP2000_PCI_ME_PUSH_EN IXP2000_PCI_CSR(0x14C)
+#define IXP2000_PCI_ERR_STATUS IXP2000_PCI_CSR(0x150)
+#define IXP2000_PCI_ERR_ENABLE IXP2000_PCI_CSR(0x154)
+/*
+ * Inbound PCI interrupt control
+ */
+#define IXP2000_PCI_XSCALE_INT_STATUS IXP2000_PCI_CSR(0x158)
+#define IXP2000_PCI_XSCALE_INT_ENABLE IXP2000_PCI_CSR(0x15C)
+
+#define IXP2000_PCICNTL_PNR (1<<17) /* PCI not Reset bit of PCI_CONTROL */
+#define IXP2000_PCICNTL_PCF (1<<28) /* PCI Centrolfunction bit */
+#define IXP2000_XSCALE_INT (1<<1) /* Interrupt from XScale to PCI */
+
+/* These are from the IRQ register in the PCI ISR register */
+#define PCI_CONTROL_BE_DEO (1 << 22) /* Big Endian Data Enable Out */
+#define PCI_CONTROL_BE_DEI (1 << 21) /* Big Endian Data Enable In */
+#define PCI_CONTROL_BE_BEO (1 << 20) /* Big Endian Byte Enable Out */
+#define PCI_CONTROL_BE_BEI (1 << 19) /* Big Endian Byte Enable In */
+#define PCI_CONTROL_PNR (1 << 17) /* PCI Not Reset bit */
+
+#define IXP2000_PCI_RST_REL (1 << 2)
+#define CFG_RST_DIR (*IXP2000_PCI_CONTROL & IXP2000_PCICNTL_PCF)
+#define CFG_PCI_BOOT_HOST (1 << 2)
+#define CFG_BOOT_PROM (1 << 1)
+
+/*
+ * SlowPort CSRs
+ *
+ * The slowport is used to access things like flash, SONET framer control
+ * ports, slave microprocessors, CPLDs, and others of chip memory mapped
+ * peripherals.
+ */
+#define SLOWPORT_CSR(x) (volatile unsigned long*)(IXP2000_SLOWPORT_CSR_VIRT_BASE | (x))
+
+#define IXP2000_SLOWPORT_CCR SLOWPORT_CSR(0x00)
+#define IXP2000_SLOWPORT_WTC1 SLOWPORT_CSR(0x04)
+#define IXP2000_SLOWPORT_WTC2 SLOWPORT_CSR(0x08)
+#define IXP2000_SLOWPORT_RTC1 SLOWPORT_CSR(0x0c)
+#define IXP2000_SLOWPORT_RTC2 SLOWPORT_CSR(0x10)
+#define IXP2000_SLOWPORT_FSR SLOWPORT_CSR(0x14)
+#define IXP2000_SLOWPORT_PCR SLOWPORT_CSR(0x18)
+#define IXP2000_SLOWPORT_ADC SLOWPORT_CSR(0x1C)
+#define IXP2000_SLOWPORT_FAC SLOWPORT_CSR(0x20)
+#define IXP2000_SLOWPORT_FRM SLOWPORT_CSR(0x24)
+#define IXP2000_SLOWPORT_FIN SLOWPORT_CSR(0x28)
+
+/*
+ * CCR values.
+ * The CCR configures the clock division for the slowport interface.
+ */
+#define SLOWPORT_CCR_DIV_1 0x00
+#define SLOWPORT_CCR_DIV_2 0x01
+#define SLOWPORT_CCR_DIV_4 0x02
+#define SLOWPORT_CCR_DIV_6 0x03
+#define SLOWPORT_CCR_DIV_8 0x04
+#define SLOWPORT_CCR_DIV_10 0x05
+#define SLOWPORT_CCR_DIV_12 0x06
+#define SLOWPORT_CCR_DIV_14 0x07
+#define SLOWPORT_CCR_DIV_16 0x08
+#define SLOWPORT_CCR_DIV_18 0x09
+#define SLOWPORT_CCR_DIV_20 0x0a
+#define SLOWPORT_CCR_DIV_22 0x0b
+#define SLOWPORT_CCR_DIV_24 0x0c
+#define SLOWPORT_CCR_DIV_26 0x0d
+#define SLOWPORT_CCR_DIV_28 0x0e
+#define SLOWPORT_CCR_DIV_30 0x0f
+
+/*
+ * PCR values. PCR configure the mode of the interfac3
+ */
+#define SLOWPORT_MODE_FLASH 0x00
+#define SLOWPORT_MODE_LUCENT 0x01
+#define SLOWPORT_MODE_PMC_SIERRA 0x02
+#define SLOWPORT_MODE_INTEL_UP 0x03
+#define SLOWPORT_MODE_MOTOROLA_UP 0x04
+
+/*
+ * ADC values. Defines data and address bus widths
+ */
+#define SLOWPORT_ADDR_WIDTH_8 0x00
+#define SLOWPORT_ADDR_WIDTH_16 0x01
+#define SLOWPORT_ADDR_WIDTH_24 0x02
+#define SLOWPORT_ADDR_WIDTH_32 0x03
+#define SLOWPORT_DATA_WIDTH_8 0x00
+#define SLOWPORT_DATA_WIDTH_16 0x10
+#define SLOWPORT_DATA_WIDTH_24 0x20
+#define SLOWPORT_DATA_WIDTH_32 0x30
+
+/*
+ * Masks and shifts for various fields in the WTC and RTC registers
+ */
+#define SLOWPORT_WRTC_MASK_HD 0x0003
+#define SLOWPORT_WRTC_MASK_SU 0x003c
+#define SLOWPORT_WRTC_MASK_PW 0x03c0
+
+#define SLOWPORT_WRTC_SHIFT_HD 0x00
+#define SLOWPORT_WRTC_SHIFT_SU 0x02
+#define SLOWPORT_WRTC_SHFIT_PW 0x06
+
+
+/*
+ * GPIO registers & GPIO interface
+ */
+#define IXP2000_GPIO_REG(x) ((volatile unsigned long*)(IXP2000_GPIO_VIRT_BASE+(x)))
+#define IXP2000_GPIO_PLR IXP2000_GPIO_REG(0x00)
+#define IXP2000_GPIO_PDPR IXP2000_GPIO_REG(0x04)
+#define IXP2000_GPIO_PDSR IXP2000_GPIO_REG(0x08)
+#define IXP2000_GPIO_PDCR IXP2000_GPIO_REG(0x0c)
+#define IXP2000_GPIO_POPR IXP2000_GPIO_REG(0x10)
+#define IXP2000_GPIO_POSR IXP2000_GPIO_REG(0x14)
+#define IXP2000_GPIO_POCR IXP2000_GPIO_REG(0x18)
+#define IXP2000_GPIO_REDR IXP2000_GPIO_REG(0x1c)
+#define IXP2000_GPIO_FEDR IXP2000_GPIO_REG(0x20)
+#define IXP2000_GPIO_EDSR IXP2000_GPIO_REG(0x24)
+#define IXP2000_GPIO_LSHR IXP2000_GPIO_REG(0x28)
+#define IXP2000_GPIO_LSLR IXP2000_GPIO_REG(0x2c)
+#define IXP2000_GPIO_LDSR IXP2000_GPIO_REG(0x30)
+#define IXP2000_GPIO_INER IXP2000_GPIO_REG(0x34)
+#define IXP2000_GPIO_INSR IXP2000_GPIO_REG(0x38)
+#define IXP2000_GPIO_INCR IXP2000_GPIO_REG(0x3c)
+#define IXP2000_GPIO_INST IXP2000_GPIO_REG(0x40)
+
+/*
+ * "Global" registers...whatever that's supposed to mean.
+ */
+#define GLOBAL_REG_BASE (IXP2000_GLOBAL_REG_VIRT_BASE + 0x0a00)
+#define GLOBAL_REG(x) (volatile unsigned long*)(GLOBAL_REG_BASE | (x))
+
+#define IXP2000_PROD_ID GLOBAL_REG(0x00)
+
+#define IXP2000_MAJ_PROD_TYPE_MASK 0x001F0000
+#define IXP2000_MAJ_PROD_TYPE_IXP2000 0x00000000
+#define IXP2000_MIN_PROD_TYPE_MASK 0x0000FF00
+#define IXP2000_MIN_PROD_TYPE_IXP2400 0x00000200
+#define IXP2000_MIN_PROD_TYPE_IXP2850 0x00000100
+#define IXP2000_MIN_PROD_TYPE_IXP2800 0x00000000
+#define IXP2000_MAJ_REV_MASK 0x000000F0
+#define IXP2000_MIN_REV_MASK 0x0000000F
+#define IXP2000_PROD_ID_MASK 0xFFFFFFFF
+
+#define IXP2000_MISC_CONTROL GLOBAL_REG(0x04)
+#define IXP2000_MSF_CLK_CNTRL GLOBAL_REG(0x08)
+#define IXP2000_RESET0 GLOBAL_REG(0x0c)
+#define IXP2000_RESET1 GLOBAL_REG(0x10)
+#define IXP2000_CCR GLOBAL_REG(0x14)
+#define IXP2000_STRAP_OPTIONS GLOBAL_REG(0x18)
+
+#define RSTALL (1 << 16)
+#define WDT_RESET_ENABLE 0x01000000
+
+
+#endif /* _IXP2000_H_ */
git://git.onelab.eu / linux-2.6.git / blobdiff