linux/arch/powerpc/include/asm/tsi108.h
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   1/*
   2 * common routine and memory layout for Tundra TSI108(Grendel) host bridge
   3 * memory controller.
   4 *
   5 * Author: Jacob Pan (jacob.pan@freescale.com)
   6 *         Alex Bounine (alexandreb@tundra.com)
   7 *
   8 * Copyright 2004-2006 Freescale Semiconductor, Inc.
   9 *
  10 * This program is free software; you can redistribute it and/or
  11 * modify it under the terms of the GNU General Public License
  12 * as published by the Free Software Foundation; either version
  13 * 2 of the License, or (at your option) any later version.
  14 */
  15
  16#ifndef __PPC_KERNEL_TSI108_H
  17#define __PPC_KERNEL_TSI108_H
  18
  19#include <asm/pci-bridge.h>
  20
  21/* Size of entire register space */
  22#define TSI108_REG_SIZE         (0x10000)
  23
  24/* Sizes of register spaces for individual blocks */
  25#define TSI108_HLP_SIZE         0x1000
  26#define TSI108_PCI_SIZE         0x1000
  27#define TSI108_CLK_SIZE         0x1000
  28#define TSI108_PB_SIZE          0x1000
  29#define TSI108_SD_SIZE          0x1000
  30#define TSI108_DMA_SIZE         0x1000
  31#define TSI108_ETH_SIZE         0x1000
  32#define TSI108_I2C_SIZE         0x400
  33#define TSI108_MPIC_SIZE        0x400
  34#define TSI108_UART0_SIZE       0x200
  35#define TSI108_GPIO_SIZE        0x200
  36#define TSI108_UART1_SIZE       0x200
  37
  38/* Offsets within Tsi108(A) CSR space for individual blocks */
  39#define TSI108_HLP_OFFSET       0x0000
  40#define TSI108_PCI_OFFSET       0x1000
  41#define TSI108_CLK_OFFSET       0x2000
  42#define TSI108_PB_OFFSET        0x3000
  43#define TSI108_SD_OFFSET        0x4000
  44#define TSI108_DMA_OFFSET       0x5000
  45#define TSI108_ETH_OFFSET       0x6000
  46#define TSI108_I2C_OFFSET       0x7000
  47#define TSI108_MPIC_OFFSET      0x7400
  48#define TSI108_UART0_OFFSET     0x7800
  49#define TSI108_GPIO_OFFSET      0x7A00
  50#define TSI108_UART1_OFFSET     0x7C00
  51
  52/* Tsi108 registers used by common code components */
  53#define TSI108_PCI_CSR          (0x004)
  54#define TSI108_PCI_IRP_CFG_CTL  (0x180)
  55#define TSI108_PCI_IRP_STAT     (0x184)
  56#define TSI108_PCI_IRP_ENABLE   (0x188)
  57#define TSI108_PCI_IRP_INTAD    (0x18C)
  58
  59#define TSI108_PCI_IRP_STAT_P_INT       (0x00400000)
  60#define TSI108_PCI_IRP_ENABLE_P_INT     (0x00400000)
  61
  62#define TSI108_CG_PWRUP_STATUS  (0x234)
  63
  64#define TSI108_PB_ISR           (0x00C)
  65#define TSI108_PB_ERRCS         (0x404)
  66#define TSI108_PB_AERR          (0x408)
  67
  68#define TSI108_PB_ERRCS_ES              (1 << 1)
  69#define TSI108_PB_ISR_PBS_RD_ERR        (1 << 8)
  70
  71#define TSI108_PCI_CFG_SIZE             (0x01000000)
  72
  73/*
  74 * PHY Configuration Options
  75 *
  76 * Specify "bcm54xx" in the compatible property of your device tree phy
  77 * nodes if your board uses the Broadcom PHYs
  78 */
  79#define TSI108_PHY_MV88E        0       /* Marvel 88Exxxx PHY */
  80#define TSI108_PHY_BCM54XX      1       /* Broardcom BCM54xx PHY */
  81
  82/* Global variables */
  83
  84extern u32 tsi108_pci_cfg_base;
  85/* Exported functions */
  86
  87extern int tsi108_bridge_init(struct pci_controller *hose, uint phys_csr_base);
  88extern unsigned long tsi108_get_mem_size(void);
  89extern unsigned long tsi108_get_cpu_clk(void);
  90extern unsigned long tsi108_get_sdc_clk(void);
  91extern int tsi108_direct_write_config(struct pci_bus *bus, unsigned int devfn,
  92                                      int offset, int len, u32 val);
  93extern int tsi108_direct_read_config(struct pci_bus *bus, unsigned int devfn,
  94                                     int offset, int len, u32 * val);
  95extern void tsi108_clear_pci_error(u32 pci_cfg_base);
  96
  97extern phys_addr_t get_csrbase(void);
  98
  99typedef struct {
 100        u32 regs;               /* hw registers base address */
 101        u32 phyregs;            /* phy registers base address */
 102        u16 phy;                /* phy address */
 103        u16 irq_num;            /* irq number */
 104        u8 mac_addr[6];         /* phy mac address */
 105        u16 phy_type;   /* type of phy on board */
 106} hw_info;
 107
 108extern u32 get_vir_csrbase(void);
 109extern u32 tsi108_csr_vir_base;
 110
 111static inline u32 tsi108_read_reg(u32 reg_offset)
 112{
 113        return in_be32((volatile u32 *)(tsi108_csr_vir_base + reg_offset));
 114}
 115
 116static inline void tsi108_write_reg(u32 reg_offset, u32 val)
 117{
 118        out_be32((volatile u32 *)(tsi108_csr_vir_base + reg_offset), val);
 119}
 120
 121#endif                          /* __PPC_KERNEL_TSI108_H */
 122
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