Added preprocessor definitions for External Bus Controller (EBC) configuration, bank configuration and access parameter register fields along with a macro for defining them and verifying them against the data sheet or user's manual easier.
Tested against AMCC "Haleakala". Signed-off-by: Grant Erickson <[EMAIL PROTECTED]> --- include/ppc405.h | 98 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 files changed, 98 insertions(+), 0 deletions(-) diff --git a/include/ppc405.h b/include/ppc405.h index 37b121c..009aa68 100644 --- a/include/ppc405.h +++ b/include/ppc405.h @@ -22,6 +22,9 @@ #ifndef __PPC405_H__ #define __PPC405_H__ +#define PPC_REG_BITS 32 +#define PPC_REG_VAL(bit, value) ((value) << ((PPC_REG_BITS - 1) - (bit))) + #ifndef CONFIG_IOP480 #define CFG_DCACHE_SIZE (16 << 10) /* For AMCC 405 CPUs */ #else @@ -363,6 +366,101 @@ #endif /* defined(CONFIG_405EZ) */ /****************************************************************************** + * External Bus Controller (EBC) + *****************************************************************************/ + +/* Bank Configuration Register */ +#define EBC_BXCR_BAS_MASK PPC_REG_VAL(11, 0xFFF) +#define EBC_BXCR_BAS_ENCODE(n) ((((unsigned long)(n))&EBC_BXCR_BAS_MASK)<<0) +#define EBC_BXCR_BS_MASK PPC_REG_VAL(14, 0x7) +#define EBC_BXCR_BS_1MB PPC_REG_VAL(14, 0x0) +#define EBC_BXCR_BS_2MB PPC_REG_VAL(14, 0x1) +#define EBC_BXCR_BS_4MB PPC_REG_VAL(14, 0x2) +#define EBC_BXCR_BS_8MB PPC_REG_VAL(14, 0x3) +#define EBC_BXCR_BS_16MB PPC_REG_VAL(14, 0x4) +#define EBC_BXCR_BS_32MB PPC_REG_VAL(14, 0x5) +#define EBC_BXCR_BS_64MB PPC_REG_VAL(14, 0x6) +#define EBC_BXCR_BS_128MB PPC_REG_VAL(14, 0x7) +#define EBC_BXCR_BU_MASK PPC_REG_VAL(16, 0x3) +#define EBC_BXCR_BU_NONE PPC_REG_VAL(16, 0x0) +#define EBC_BXCR_BU_R PPC_REG_VAL(16, 0x1) +#define EBC_BXCR_BU_W PPC_REG_VAL(16, 0x2) +#define EBC_BXCR_BU_RW PPC_REG_VAL(16, 0x3) +#define EBC_BXCR_BW_MASK PPC_REG_VAL(18, 0x3) +#define EBC_BXCR_BW_8BIT PPC_REG_VAL(18, 0x0) +#define EBC_BXCR_BW_16BIT PPC_REG_VAL(18, 0x1) +#define EBC_BXCR_BW_32BIT PPC_REG_VAL(18, 0x3) + +/* Bank Access Parameter Register */ +#define EBC_BXAP_BME_ENABLED PPC_REG_VAL(0, 0x1) +#define EBC_BXAP_BME_DISABLED PPC_REG_VAL(0, 0x0) +#define EBC_BXAP_TWT_ENCODE(n) PPC_REG_VAL(8, ((unsigned long)(n)) & 0xFF) +#define EBC_BXAP_FWT_ENCODE(n) PPC_REG_VAL(5, ((unsigned long)(n)) & 0x1F) +#define EBC_BXAP_BWT_ENCODE(n) PPC_REG_VAL(8, ((unsigned long)(n)) & 0x7) +#define EBC_BXAP_BCE_DISABLE PPC_REG_VAL(9, 0x0) +#define EBC_BXAP_BCE_ENABLE PPC_REG_VAL(9, 0x1) +#define EBC_BXAP_BCT_MASK PPC_REG_VAL(11, 0x3) +#define EBC_BXAP_BCT_2TRANS PPC_REG_VAL(11, 0x0) +#define EBC_BXAP_BCT_4TRANS PPC_REG_VAL(11, 0x1) +#define EBC_BXAP_BCT_8TRANS PPC_REG_VAL(11, 0x2) +#define EBC_BXAP_BCT_16TRANS PPC_REG_VAL(11, 0x3) +#define EBC_BXAP_CSN_ENCODE(n) PPC_REG_VAL(13, ((unsigned long)(n)) & 0x3) +#define EBC_BXAP_OEN_ENCODE(n) PPC_REG_VAL(15, ((unsigned long)(n)) & 0x3) +#define EBC_BXAP_WBN_ENCODE(n) PPC_REG_VAL(17, ((unsigned long)(n)) & 0x3) +#define EBC_BXAP_WBF_ENCODE(n) PPC_REG_VAL(19, ((unsigned long)(n)) & 0x3) +#define EBC_BXAP_TH_ENCODE(n) PPC_REG_VAL(22, ((unsigned long)(n)) & 0x7) +#define EBC_BXAP_RE_ENABLED PPC_REG_VAL(23, 0x1) +#define EBC_BXAP_RE_DISABLED PPC_REG_VAL(23, 0x0) +#define EBC_BXAP_SOR_DELAYED PPC_REG_VAL(24, 0x0) +#define EBC_BXAP_SOR_NONDELAYED PPC_REG_VAL(24, 0x1) +#define EBC_BXAP_BEM_WRITEONLY PPC_REG_VAL(25, 0x0) +#define EBC_BXAP_BEM_RW PPC_REG_VAL(25, 0x1) +#define EBC_BXAP_PEN_DISABLED PPC_REG_VAL(26, 0x0) +#define EBC_BXAP_PEN_ENABLED PPC_REG_VAL(26, 0x1) + +/* Configuration Register */ +#define EBC_CFG_LE_MASK PPC_REG_VAL(0, 0x1) +#define EBC_CFG_LE_UNLOCK PPC_REG_VAL(0, 0x0) +#define EBC_CFG_LE_LOCK PPC_REG_VAL(0, 0x1) +#define EBC_CFG_PTD_MASK PPC_REG_VAL(1, 0x1) +#define EBC_CFG_PTD_ENABLE PPC_REG_VAL(1, 0x0) +#define EBC_CFG_PTD_DISABLE PPC_REG_VAL(1, 0x1) +#define EBC_CFG_RTC_MASK PPC_REG_VAL(4, 0x7) +#define EBC_CFG_RTC_16PERCLK PPC_REG_VAL(4, 0x0) +#define EBC_CFG_RTC_32PERCLK PPC_REG_VAL(4, 0x1) +#define EBC_CFG_RTC_64PERCLK PPC_REG_VAL(4, 0x2) +#define EBC_CFG_RTC_128PERCLK PPC_REG_VAL(4, 0x3) +#define EBC_CFG_RTC_256PERCLK PPC_REG_VAL(4, 0x4) +#define EBC_CFG_RTC_512PERCLK PPC_REG_VAL(4, 0x5) +#define EBC_CFG_RTC_1024PERCLK PPC_REG_VAL(4, 0x6) +#define EBC_CFG_RTC_2048PERCLK PPC_REG_VAL(4, 0x7) +#define EBC_CFG_ATC_MASK PPC_REG_VAL(5, 0x1) +#define EBC_CFG_ATC_HI PPC_REG_VAL(5, 0x0) +#define EBC_CFG_ATC_PREVIOUS PPC_REG_VAL(5, 0x1) +#define EBC_CFG_DTC_MASK PPC_REG_VAL(6, 0x1) +#define EBC_CFG_DTC_HI PPC_REG_VAL(6, 0x0) +#define EBC_CFG_DTC_PREVIOUS PPC_REG_VAL(6, 0x1) +#define EBC_CFG_CTC_MASK PPC_REG_VAL(7, 0x1) +#define EBC_CFG_CTC_HI PPC_REG_VAL(7, 0x0) +#define EBC_CFG_CTC_PREVIOUS PPC_REG_VAL(7, 0x1) +#define EBC_CFG_OEO_MASK PPC_REG_VAL(8, 0x1) +#define EBC_CFG_OEO_DISABLE PPC_REG_VAL(8, 0x0) +#define EBC_CFG_OEO_ENABLE PPC_REG_VAL(8, 0x1) +#define EBC_CFG_EMC_MASK PPC_REG_VAL(9, 0x1) +#define EBC_CFG_EMC_NONDEFAULT PPC_REG_VAL(9, 0x0) +#define EBC_CFG_EMC_DEFAULT PPC_REG_VAL(9, 0x1) +#define EBC_CFG_PME_MASK PPC_REG_VAL(14, 0x1) +#define EBC_CFG_PME_DISABLE PPC_REG_VAL(14, 0x0) +#define EBC_CFG_PME_ENABLE PPC_REG_VAL(14, 0x1) +#define EBC_CFG_PMT_MASK PPC_REG_VAL(19, 0x1F) +#define EBC_CFG_PMT_ENCODE(n) PPC_REG_VAL(19, ((unsigned long)(n)) & 0x1F) +#define EBC_CFG_PR_MASK PPC_REG_VAL(21, 0x3) +#define EBC_CFG_PR_16 PPC_REG_VAL(21, 0x0) +#define EBC_CFG_PR_32 PPC_REG_VAL(21, 0x1) +#define EBC_CFG_PR_64 PPC_REG_VAL(21, 0x2) +#define EBC_CFG_PR_128 PPC_REG_VAL(21, 0x3) + +/****************************************************************************** * SDRAM Controller ******************************************************************************/ /* values for memcfga register - indirect addressing of these regs */ -- 1.5.4.3 ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. 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