diff options
| -rw-r--r-- | include/asm-ppc/cache.h | 89 | ||||
| -rw-r--r-- | include/galileo/core.h | 218 |
2 files changed, 307 insertions, 0 deletions
diff --git a/include/asm-ppc/cache.h b/include/asm-ppc/cache.h new file mode 100644 index 00000000000..5befab4d536 --- /dev/null +++ b/include/asm-ppc/cache.h @@ -0,0 +1,89 @@ +/* + * include/asm-ppc/cache.h + */ +#ifndef __ARCH_PPC_CACHE_H +#define __ARCH_PPC_CACHE_H + +#include <linux/config.h> +#include <asm/processor.h> + +/* bytes per L1 cache line */ +#if !defined(CONFIG_8xx) || defined(CONFIG_8260) +#if defined(CONFIG_PPC64BRIDGE) +#define L1_CACHE_BYTES 128 +#else +#define L1_CACHE_BYTES 32 +#endif /* PPC64 */ +#else +#define L1_CACHE_BYTES 16 +#endif /* !8xx || 8260 */ + +#define L1_CACHE_ALIGN(x) (((x)+(L1_CACHE_BYTES-1))&~(L1_CACHE_BYTES-1)) +#define L1_CACHE_PAGES 8 + +#define SMP_CACHE_BYTES L1_CACHE_BYTES + +#ifdef MODULE +#define __cacheline_aligned __attribute__((__aligned__(L1_CACHE_BYTES))) +#else +#define __cacheline_aligned \ + __attribute__((__aligned__(L1_CACHE_BYTES), \ + __section__(".data.cacheline_aligned"))) +#endif + +#if defined(__KERNEL__) && !defined(__ASSEMBLY__) +extern void flush_dcache_range(unsigned long start, unsigned long stop); +extern void clean_dcache_range(unsigned long start, unsigned long stop); +extern void invalidate_dcache_range(unsigned long start, unsigned long stop); +#ifdef CFG_INIT_RAM_LOCK +extern void unlock_ram_in_cache(void); +#endif /* CFG_INIT_RAM_LOCK */ +#endif /* __ASSEMBLY__ */ + +/* prep registers for L2 */ +#define CACHECRBA 0x80000823 /* Cache configuration register address */ +#define L2CACHE_MASK 0x03 /* Mask for 2 L2 Cache bits */ +#define L2CACHE_512KB 0x00 /* 512KB */ +#define L2CACHE_256KB 0x01 /* 256KB */ +#define L2CACHE_1MB 0x02 /* 1MB */ +#define L2CACHE_NONE 0x03 /* NONE */ +#define L2CACHE_PARITY 0x08 /* Mask for L2 Cache Parity Protected bit */ + +#ifdef CONFIG_8xx +/* Cache control on the MPC8xx is provided through some additional + * special purpose registers. + */ +#define IC_CST 560 /* Instruction cache control/status */ +#define IC_ADR 561 /* Address needed for some commands */ +#define IC_DAT 562 /* Read-only data register */ +#define DC_CST 568 /* Data cache control/status */ +#define DC_ADR 569 /* Address needed for some commands */ +#define DC_DAT 570 /* Read-only data register */ + +/* Commands. Only the first few are available to the instruction cache. +*/ +#define IDC_ENABLE 0x02000000 /* Cache enable */ +#define IDC_DISABLE 0x04000000 /* Cache disable */ +#define IDC_LDLCK 0x06000000 /* Load and lock */ +#define IDC_UNLINE 0x08000000 /* Unlock line */ +#define IDC_UNALL 0x0a000000 /* Unlock all */ +#define IDC_INVALL 0x0c000000 /* Invalidate all */ + +#define DC_FLINE 0x0e000000 /* Flush data cache line */ +#define DC_SFWT 0x01000000 /* Set forced writethrough mode */ +#define DC_CFWT 0x03000000 /* Clear forced writethrough mode */ +#define DC_SLES 0x05000000 /* Set little endian swap mode */ +#define DC_CLES 0x07000000 /* Clear little endian swap mode */ + +/* Status. +*/ +#define IDC_ENABLED 0x80000000 /* Cache is enabled */ +#define IDC_CERR1 0x00200000 /* Cache error 1 */ +#define IDC_CERR2 0x00100000 /* Cache error 2 */ +#define IDC_CERR3 0x00080000 /* Cache error 3 */ + +#define DC_DFWT 0x40000000 /* Data cache is forced write through */ +#define DC_LES 0x20000000 /* Caches are little endian mode */ +#endif /* CONFIG_8xx */ + +#endif diff --git a/include/galileo/core.h b/include/galileo/core.h new file mode 100644 index 00000000000..56db09782aa --- /dev/null +++ b/include/galileo/core.h @@ -0,0 +1,218 @@ +/* Core.h - Basic core logic functions and definitions */ + +/* Copyright Galileo Technology. */ + +/* +DESCRIPTION +This header file contains simple read/write macros for addressing +the SDRAM, devices, GT`s internal registers and PCI (using the PCI`s address +space). The macros take care of Big/Little endian conversions. +*/ + +#ifndef __INCcoreh +#define __INCcoreh + +/* includes */ +#include "gt64260R.h" + +extern unsigned int INTERNAL_REG_BASE_ADDR; + +/* + * GT-6426x variants + */ +#define GT_64260 0 /* includes both 64260A and 64260B */ +#define GT_64261 1 + +#if (CFG_GT_6426x == GT_64260) +#ifdef CONFIG_ETHER_PORT_MII +#define GAL_ETH_DEVS 2 +#else +#define GAL_ETH_DEVS 3 +#endif +#elif (CFG_GT_6426x == GT_64261) +#define GAL_ETH_DEVS 2 +#else +#define GAL_ETH_DEVS 3 /* default to a 64260 */ +#endif + +/****************************************/ +/* GENERAL Definitions */ +/****************************************/ + +#define NO_BIT 0x00000000 +#define BIT0 0x00000001 +#define BIT1 0x00000002 +#define BIT2 0x00000004 +#define BIT3 0x00000008 +#define BIT4 0x00000010 +#define BIT5 0x00000020 +#define BIT6 0x00000040 +#define BIT7 0x00000080 +#define BIT8 0x00000100 +#define BIT9 0x00000200 +#define BIT10 0x00000400 +#define BIT11 0x00000800 +#define BIT12 0x00001000 +#define BIT13 0x00002000 +#define BIT14 0x00004000 +#define BIT15 0x00008000 +#define BIT16 0x00010000 +#define BIT17 0x00020000 +#define BIT18 0x00040000 +#define BIT19 0x00080000 +#define BIT20 0x00100000 +#define BIT21 0x00200000 +#define BIT22 0x00400000 +#define BIT23 0x00800000 +#define BIT24 0x01000000 +#define BIT25 0x02000000 +#define BIT26 0x04000000 +#define BIT27 0x08000000 +#define BIT28 0x10000000 +#define BIT29 0x20000000 +#define BIT30 0x40000000 +#define BIT31 0x80000000 + +#define _1K 0x00000400 +#define _2K 0x00000800 +#define _4K 0x00001000 +#define _8K 0x00002000 +#define _16K 0x00004000 +#define _32K 0x00008000 +#define _64K 0x00010000 +#define _128K 0x00020000 +#define _256K 0x00040000 +#define _512K 0x00080000 + +#define _1M 0x00100000 +#define _2M 0x00200000 +#define _3M 0x00300000 +#define _4M 0x00400000 +#define _5M 0x00500000 +#define _6M 0x00600000 +#define _7M 0x00700000 +#define _8M 0x00800000 +#define _9M 0x00900000 +#define _10M 0x00a00000 +#define _11M 0x00b00000 +#define _12M 0x00c00000 +#define _13M 0x00d00000 +#define _14M 0x00e00000 +#define _15M 0x00f00000 +#define _16M 0x01000000 + +#define _32M 0x02000000 +#define _64M 0x04000000 +#define _128M 0x08000000 +#define _256M 0x10000000 +#define _512M 0x20000000 + +#define _1G 0x40000000 +#define _2G 0x80000000 + +typedef enum _bool{false,true} bool; + +/* Little to Big endian conversion macros */ + +#ifdef LE /* Little Endian */ +#define SHORT_SWAP(X) (X) +#define WORD_SWAP(X) (X) +#define LONG_SWAP(X) ((l64)(X)) + +#else /* Big Endian */ +#define SHORT_SWAP(X) ((X <<8 ) | (X >> 8)) + +#define WORD_SWAP(X) (((X)&0xff)<<24)+ \ + (((X)&0xff00)<<8)+ \ + (((X)&0xff0000)>>8)+ \ + (((X)&0xff000000)>>24) + +#define LONG_SWAP(X) ( (l64) (((X)&0xffULL)<<56)+ \ + (((X)&0xff00ULL)<<40)+ \ + (((X)&0xff0000ULL)<<24)+ \ + (((X)&0xff000000ULL)<<8)+ \ + (((X)&0xff00000000ULL)>>8)+ \ + (((X)&0xff0000000000ULL)>>24)+ \ + (((X)&0xff000000000000ULL)>>40)+ \ + (((X)&0xff00000000000000ULL)>>56)) + +#endif + +#ifndef NULL +#define NULL 0 +#endif + +/* Those two definitions were defined to be compatible with MIPS */ +#define NONE_CACHEABLE 0x00000000 +#define CACHEABLE 0x00000000 + +/* 750 cache line */ +#define CACHE_LINE_SIZE 32 +#define CACHELINE_MASK_BITS (CACHE_LINE_SIZE - 1) +#define CACHELINE_ROUNDUP(A) (((A)+CACHELINE_MASK_BITS) & ~CACHELINE_MASK_BITS) + +/* Read/Write to/from GT`s internal registers */ +#define GT_REG_READ(offset, pData) \ +*pData = ( *((volatile unsigned int *)(NONE_CACHEABLE | \ + INTERNAL_REG_BASE_ADDR | (offset))) ) ; \ +*pData = WORD_SWAP(*pData) + +#define GTREGREAD(offset) \ + (WORD_SWAP( *((volatile unsigned int *)(NONE_CACHEABLE | \ + INTERNAL_REG_BASE_ADDR | (offset))) )) + +#define GT_REG_WRITE(offset, data) \ +*((unsigned int *)( INTERNAL_REG_BASE_ADDR | (offset))) = \ + WORD_SWAP(data) + +/* Write 32/16/8 bit */ +#define WRITE_CHAR(address, data) \ + *((unsigned char *)(address)) = data +#define WRITE_SHORT(address, data) \ + *((unsigned short *)(address)) = data +#define WRITE_WORD(address, data) \ + *((unsigned int *)(address)) = data + +/* Read 32/16/8 bits - returns data in variable. */ +#define READ_CHAR(address, pData) \ + *pData = *((volatile unsigned char *)(address)) + +#define READ_SHORT(address, pData) \ + *pData = *((volatile unsigned short *)(address)) + +#define READ_WORD(address, pData) \ + *pData = *((volatile unsigned int *)(address)) + +/* Read 32/16/8 bit - returns data direct. */ +#define READCHAR(address) \ + *((volatile unsigned char *)((address) | NONE_CACHEABLE)) + +#define READSHORT(address) \ + *((volatile unsigned short *)((address) | NONE_CACHEABLE)) + +#define READWORD(address) \ + *((volatile unsigned int *)((address) | NONE_CACHEABLE)) + +/* Those two Macros were defined to be compatible with MIPS */ +#define VIRTUAL_TO_PHY(x) (((unsigned int)x) & 0xffffffff) +#define PHY_TO_VIRTUAL(x) (((unsigned int)x) | NONE_CACHEABLE) + +/* SET_REG_BITS(regOffset,bits) - + gets register offset and bits: a 32bit value. It set to logic '1' in the + internal register the bits which given as an input example: + SET_REG_BITS(0x840,BIT3 | BIT24 | BIT30) - set bits: 3,24 and 30 to logic + '1' in register 0x840 while the other bits stays as is. */ +#define SET_REG_BITS(regOffset,bits) \ + *(unsigned int*)(NONE_CACHEABLE | INTERNAL_REG_BASE_ADDR | \ + regOffset) |= (unsigned int)WORD_SWAP(bits) + +/* RESET_REG_BITS(regOffset,bits) - + gets register offset and bits: a 32bit value. It set to logic '0' in the + internal register the bits which given as an input example: + RESET_REG_BITS(0x840,BIT3 | BIT24 | BIT30) - set bits: 3,24 and 30 to logic + '0' in register 0x840 while the other bits stays as is. */ +#define RESET_REG_BITS(regOffset,bits) \ + *(unsigned int*)(NONE_CACHEABLE | INTERNAL_REG_BASE_ADDR \ + | regOffset) &= ~( (unsigned int)WORD_SWAP(bits) ) + +#endif /* __INCcoreh */ |