135 lines
4.1 KiB
C
135 lines
4.1 KiB
C
/*----------------------------------------------------------------------------+
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| This source code has been made available to you by IBM on an AS-IS
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| basis. Anyone receiving this source is licensed under IBM
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| copyrights to use it in any way he or she deems fit, including
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| copying it, modifying it, compiling it, and redistributing it either
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| with or without modifications. No license under IBM patents or
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| patent applications is to be implied by the copyright license.
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| Any user of this software should understand that IBM cannot provide
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| technical support for this software and will not be responsible for
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| any consequences resulting from the use of this software.
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| Any person who transfers this source code or any derivative work
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| must include the IBM copyright notice, this paragraph, and the
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| preceding two paragraphs in the transferred software.
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| COPYRIGHT I B M CORPORATION 1999
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| LICENSED MATERIAL - PROGRAM PROPERTY OF I B M
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+----------------------------------------------------------------------------*/
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#ifndef __PPC4XX_H__
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#define __PPC4XX_H__
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/*
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* Configure which SDRAM/DDR/DDR2 controller is equipped
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*/
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#define CONFIG_SDRAM_PPC4xx_IBM_SDRAM /* IBM SDRAM controller */
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#include <asm/ppc405.h>
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#include <asm/ppc4xx-uic.h>
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/*
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* Macro for generating register field mnemonics
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*/
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#define PPC_REG_BITS 32
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#define PPC_REG_VAL(bit, value) ((value) << ((PPC_REG_BITS - 1) - (bit)))
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/*
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* Elide casts when assembling register mnemonics
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*/
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#ifndef __ASSEMBLY__
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#define static_cast(type, val) (type)(val)
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#else
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#define static_cast(type, val) (val)
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#endif
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/*
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* Common stuff for 4xx (405 and 440)
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*/
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#define EXC_OFF_SYS_RESET 0x0100 /* System reset */
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#define _START_OFFSET (EXC_OFF_SYS_RESET + 0x2000)
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#define RESET_VECTOR 0xfffffffc
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#define CACHELINE_MASK (CONFIG_SYS_CACHELINE_SIZE - 1) /* Address mask for cache
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line aligned data. */
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#define CPR0_DCR_BASE 0x0C
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#define cprcfga (CPR0_DCR_BASE+0x0)
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#define cprcfgd (CPR0_DCR_BASE+0x1)
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#define SDR_DCR_BASE 0x0E
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#define sdrcfga (SDR_DCR_BASE+0x0)
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#define sdrcfgd (SDR_DCR_BASE+0x1)
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#define SDRAM_DCR_BASE 0x10
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#define memcfga (SDRAM_DCR_BASE+0x0)
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#define memcfgd (SDRAM_DCR_BASE+0x1)
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#define EBC_DCR_BASE 0x12
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#define ebccfga (EBC_DCR_BASE+0x0)
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#define ebccfgd (EBC_DCR_BASE+0x1)
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/*
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* Macros for indirect DCR access
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*/
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#define mtcpr(reg, d) do { mtdcr(cprcfga,reg);mtdcr(cprcfgd,d); } while (0)
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#define mfcpr(reg, d) do { mtdcr(cprcfga,reg);d = mfdcr(cprcfgd); } while (0)
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#define mtebc(reg, d) do { mtdcr(ebccfga,reg);mtdcr(ebccfgd,d); } while (0)
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#define mfebc(reg, d) do { mtdcr(ebccfga,reg);d = mfdcr(ebccfgd); } while (0)
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#define mtsdram(reg, d) do { mtdcr(memcfga,reg);mtdcr(memcfgd,d); } while (0)
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#define mfsdram(reg, d) do { mtdcr(memcfga,reg);d = mfdcr(memcfgd); } while (0)
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#define mtsdr(reg, d) do { mtdcr(sdrcfga,reg);mtdcr(sdrcfgd,d); } while (0)
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#define mfsdr(reg, d) do { mtdcr(sdrcfga,reg);d = mfdcr(sdrcfgd); } while (0)
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#ifndef __ASSEMBLY__
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typedef struct
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{
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unsigned long freqDDR;
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unsigned long freqEBC;
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unsigned long freqOPB;
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unsigned long freqPCI;
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unsigned long freqPLB;
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unsigned long freqTmrClk;
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unsigned long freqUART;
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unsigned long freqProcessor;
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unsigned long freqVCOHz;
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unsigned long freqVCOMhz; /* in MHz */
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unsigned long pciClkSync; /* PCI clock is synchronous */
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unsigned long pciIntArbEn; /* Internal PCI arbiter is enabled */
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unsigned long pllExtBusDiv;
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unsigned long pllFbkDiv;
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unsigned long pllFwdDiv;
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unsigned long pllFwdDivA;
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unsigned long pllFwdDivB;
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unsigned long pllOpbDiv;
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unsigned long pllPciDiv;
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unsigned long pllPlbDiv;
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} PPC4xx_SYS_INFO;
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static inline rt_uint32_t get_mcsr(void)
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{
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rt_uint32_t val;
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asm volatile("mfspr %0, 0x23c" : "=r" (val) :);
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return val;
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}
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static inline void set_mcsr(rt_uint32_t val)
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{
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asm volatile("mtspr 0x23c, %0" : "=r" (val) :);
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}
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#endif /* __ASSEMBLY__ */
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/* for multi-cpu support */
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#define NA_OR_UNKNOWN_CPU -1
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#endif /* __PPC4XX_H__ */
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