diff options
Diffstat (limited to 'drivers/edac/ppc4xx_edac.h')
| -rw-r--r-- | drivers/edac/ppc4xx_edac.h | 172 |
1 files changed, 172 insertions, 0 deletions
diff --git a/drivers/edac/ppc4xx_edac.h b/drivers/edac/ppc4xx_edac.h new file mode 100644 index 000000000..d3154764c --- /dev/null +++ b/drivers/edac/ppc4xx_edac.h @@ -0,0 +1,172 @@ +/* + * Copyright (c) 2008 Nuovation System Designs, LLC + * Grant Erickson <gerickson@nuovations.com> + * + * This file defines processor mnemonics for accessing and managing + * the IBM DDR1/DDR2 ECC controller found in the 405EX[r], 440SP, + * 440SPe, 460EX, 460GT and 460SX. + * + * 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; version 2 of the + * License. + * + */ + +#ifndef __PPC4XX_EDAC_H +#define __PPC4XX_EDAC_H + +#include <linux/types.h> + +/* + * Macro for generating register field mnemonics + */ +#define PPC_REG_BITS 32 +#define PPC_REG_VAL(bit, val) ((val) << ((PPC_REG_BITS - 1) - (bit))) +#define PPC_REG_DECODE(bit, val) ((val) >> ((PPC_REG_BITS - 1) - (bit))) + +/* + * IBM 4xx DDR1/DDR2 SDRAM memory controller registers (at least those + * relevant to ECC) + */ +#define SDRAM_BESR 0x00 /* Error status (read/clear) */ +#define SDRAM_BESRT 0x01 /* Error statuss (test/set) */ +#define SDRAM_BEARL 0x02 /* Error address low */ +#define SDRAM_BEARH 0x03 /* Error address high */ +#define SDRAM_WMIRQ 0x06 /* Write master (read/clear) */ +#define SDRAM_WMIRQT 0x07 /* Write master (test/set) */ +#define SDRAM_MCOPT1 0x20 /* Controller options 1 */ +#define SDRAM_MBXCF_BASE 0x40 /* Bank n configuration base */ +#define SDRAM_MBXCF(n) (SDRAM_MBXCF_BASE + (4 * (n))) +#define SDRAM_MB0CF SDRAM_MBXCF(0) +#define SDRAM_MB1CF SDRAM_MBXCF(1) +#define SDRAM_MB2CF SDRAM_MBXCF(2) +#define SDRAM_MB3CF SDRAM_MBXCF(3) +#define SDRAM_ECCCR 0x98 /* ECC error status */ +#define SDRAM_ECCES SDRAM_ECCCR + +/* + * PLB Master IDs + */ +#define SDRAM_PLB_M0ID_FIRST 0 +#define SDRAM_PLB_M0ID_ICU SDRAM_PLB_M0ID_FIRST +#define SDRAM_PLB_M0ID_PCIE0 1 +#define SDRAM_PLB_M0ID_PCIE1 2 +#define SDRAM_PLB_M0ID_DMA 3 +#define SDRAM_PLB_M0ID_DCU 4 +#define SDRAM_PLB_M0ID_OPB 5 +#define SDRAM_PLB_M0ID_MAL 6 +#define SDRAM_PLB_M0ID_SEC 7 +#define SDRAM_PLB_M0ID_AHB 8 +#define SDRAM_PLB_M0ID_LAST SDRAM_PLB_M0ID_AHB +#define SDRAM_PLB_M0ID_COUNT (SDRAM_PLB_M0ID_LAST - \ + SDRAM_PLB_M0ID_FIRST + 1) + +/* + * Memory Controller Bus Error Status Register + */ +#define SDRAM_BESR_MASK PPC_REG_VAL(7, 0xFF) +#define SDRAM_BESR_M0ID_MASK PPC_REG_VAL(3, 0xF) +#define SDRAM_BESR_M0ID_DECODE(n) PPC_REG_DECODE(3, n) +#define SDRAM_BESR_M0ID_ICU PPC_REG_VAL(3, SDRAM_PLB_M0ID_ICU) +#define SDRAM_BESR_M0ID_PCIE0 PPC_REG_VAL(3, SDRAM_PLB_M0ID_PCIE0) +#define SDRAM_BESR_M0ID_PCIE1 PPC_REG_VAL(3, SDRAM_PLB_M0ID_PCIE1) +#define SDRAM_BESR_M0ID_DMA PPC_REG_VAL(3, SDRAM_PLB_M0ID_DMA) +#define SDRAM_BESR_M0ID_DCU PPC_REG_VAL(3, SDRAM_PLB_M0ID_DCU) +#define SDRAM_BESR_M0ID_OPB PPC_REG_VAL(3, SDRAM_PLB_M0ID_OPB) +#define SDRAM_BESR_M0ID_MAL PPC_REG_VAL(3, SDRAM_PLB_M0ID_MAL) +#define SDRAM_BESR_M0ID_SEC PPC_REG_VAL(3, SDRAM_PLB_M0ID_SEC) +#define SDRAM_BESR_M0ID_AHB PPC_REG_VAL(3, SDRAM_PLB_M0ID_AHB) +#define SDRAM_BESR_M0ET_MASK PPC_REG_VAL(6, 0x7) +#define SDRAM_BESR_M0ET_NONE PPC_REG_VAL(6, 0) +#define SDRAM_BESR_M0ET_ECC PPC_REG_VAL(6, 1) +#define SDRAM_BESR_M0RW_MASK PPC_REG_VAL(7, 1) +#define SDRAM_BESR_M0RW_WRITE PPC_REG_VAL(7, 0) +#define SDRAM_BESR_M0RW_READ PPC_REG_VAL(7, 1) + +/* + * Memory Controller PLB Write Master Interrupt Register + */ +#define SDRAM_WMIRQ_MASK PPC_REG_VAL(8, 0x1FF) +#define SDRAM_WMIRQ_ENCODE(id) PPC_REG_VAL((id % \ + SDRAM_PLB_M0ID_COUNT), 1) +#define SDRAM_WMIRQ_ICU PPC_REG_VAL(SDRAM_PLB_M0ID_ICU, 1) +#define SDRAM_WMIRQ_PCIE0 PPC_REG_VAL(SDRAM_PLB_M0ID_PCIE0, 1) +#define SDRAM_WMIRQ_PCIE1 PPC_REG_VAL(SDRAM_PLB_M0ID_PCIE1, 1) +#define SDRAM_WMIRQ_DMA PPC_REG_VAL(SDRAM_PLB_M0ID_DMA, 1) +#define SDRAM_WMIRQ_DCU PPC_REG_VAL(SDRAM_PLB_M0ID_DCU, 1) +#define SDRAM_WMIRQ_OPB PPC_REG_VAL(SDRAM_PLB_M0ID_OPB, 1) +#define SDRAM_WMIRQ_MAL PPC_REG_VAL(SDRAM_PLB_M0ID_MAL, 1) +#define SDRAM_WMIRQ_SEC PPC_REG_VAL(SDRAM_PLB_M0ID_SEC, 1) +#define SDRAM_WMIRQ_AHB PPC_REG_VAL(SDRAM_PLB_M0ID_AHB, 1) + +/* + * Memory Controller Options 1 Register + */ +#define SDRAM_MCOPT1_MCHK_MASK PPC_REG_VAL(3, 0x3) /* ECC mask */ +#define SDRAM_MCOPT1_MCHK_NON PPC_REG_VAL(3, 0x0) /* No ECC gen */ +#define SDRAM_MCOPT1_MCHK_GEN PPC_REG_VAL(3, 0x2) /* ECC gen */ +#define SDRAM_MCOPT1_MCHK_CHK PPC_REG_VAL(3, 0x1) /* ECC gen and chk */ +#define SDRAM_MCOPT1_MCHK_CHK_REP PPC_REG_VAL(3, 0x3) /* ECC gen/chk/rpt */ +#define SDRAM_MCOPT1_MCHK_DECODE(n) ((((u32)(n)) >> 28) & 0x3) +#define SDRAM_MCOPT1_RDEN_MASK PPC_REG_VAL(4, 0x1) /* Rgstrd DIMM mask */ +#define SDRAM_MCOPT1_RDEN PPC_REG_VAL(4, 0x1) /* Rgstrd DIMM enbl */ +#define SDRAM_MCOPT1_WDTH_MASK PPC_REG_VAL(7, 0x1) /* Width mask */ +#define SDRAM_MCOPT1_WDTH_32 PPC_REG_VAL(7, 0x0) /* 32 bits */ +#define SDRAM_MCOPT1_WDTH_16 PPC_REG_VAL(7, 0x1) /* 16 bits */ +#define SDRAM_MCOPT1_DDR_TYPE_MASK PPC_REG_VAL(11, 0x1) /* DDR type mask */ +#define SDRAM_MCOPT1_DDR1_TYPE PPC_REG_VAL(11, 0x0) /* DDR1 type */ +#define SDRAM_MCOPT1_DDR2_TYPE PPC_REG_VAL(11, 0x1) /* DDR2 type */ + +/* + * Memory Bank 0 - n Configuration Register + */ +#define SDRAM_MBCF_BA_MASK PPC_REG_VAL(12, 0x1FFF) +#define SDRAM_MBCF_SZ_MASK PPC_REG_VAL(19, 0xF) +#define SDRAM_MBCF_SZ_DECODE(mbxcf) PPC_REG_DECODE(19, mbxcf) +#define SDRAM_MBCF_SZ_4MB PPC_REG_VAL(19, 0x0) +#define SDRAM_MBCF_SZ_8MB PPC_REG_VAL(19, 0x1) +#define SDRAM_MBCF_SZ_16MB PPC_REG_VAL(19, 0x2) +#define SDRAM_MBCF_SZ_32MB PPC_REG_VAL(19, 0x3) +#define SDRAM_MBCF_SZ_64MB PPC_REG_VAL(19, 0x4) +#define SDRAM_MBCF_SZ_128MB PPC_REG_VAL(19, 0x5) +#define SDRAM_MBCF_SZ_256MB PPC_REG_VAL(19, 0x6) +#define SDRAM_MBCF_SZ_512MB PPC_REG_VAL(19, 0x7) +#define SDRAM_MBCF_SZ_1GB PPC_REG_VAL(19, 0x8) +#define SDRAM_MBCF_SZ_2GB PPC_REG_VAL(19, 0x9) +#define SDRAM_MBCF_SZ_4GB PPC_REG_VAL(19, 0xA) +#define SDRAM_MBCF_SZ_8GB PPC_REG_VAL(19, 0xB) +#define SDRAM_MBCF_AM_MASK PPC_REG_VAL(23, 0xF) +#define SDRAM_MBCF_AM_MODE0 PPC_REG_VAL(23, 0x0) +#define SDRAM_MBCF_AM_MODE1 PPC_REG_VAL(23, 0x1) +#define SDRAM_MBCF_AM_MODE2 PPC_REG_VAL(23, 0x2) +#define SDRAM_MBCF_AM_MODE3 PPC_REG_VAL(23, 0x3) +#define SDRAM_MBCF_AM_MODE4 PPC_REG_VAL(23, 0x4) +#define SDRAM_MBCF_AM_MODE5 PPC_REG_VAL(23, 0x5) +#define SDRAM_MBCF_AM_MODE6 PPC_REG_VAL(23, 0x6) +#define SDRAM_MBCF_AM_MODE7 PPC_REG_VAL(23, 0x7) +#define SDRAM_MBCF_AM_MODE8 PPC_REG_VAL(23, 0x8) +#define SDRAM_MBCF_AM_MODE9 PPC_REG_VAL(23, 0x9) +#define SDRAM_MBCF_BE_MASK PPC_REG_VAL(31, 0x1) +#define SDRAM_MBCF_BE_DISABLE PPC_REG_VAL(31, 0x0) +#define SDRAM_MBCF_BE_ENABLE PPC_REG_VAL(31, 0x1) + +/* + * ECC Error Status + */ +#define SDRAM_ECCES_MASK PPC_REG_VAL(21, 0x3FFFFF) +#define SDRAM_ECCES_BNCE_MASK PPC_REG_VAL(15, 0xFFFF) +#define SDRAM_ECCES_BNCE_ENCODE(lane) PPC_REG_VAL(((lane) & 0xF), 1) +#define SDRAM_ECCES_CKBER_MASK PPC_REG_VAL(17, 0x3) +#define SDRAM_ECCES_CKBER_NONE PPC_REG_VAL(17, 0) +#define SDRAM_ECCES_CKBER_16_ECC_0_3 PPC_REG_VAL(17, 2) +#define SDRAM_ECCES_CKBER_32_ECC_0_3 PPC_REG_VAL(17, 1) +#define SDRAM_ECCES_CKBER_32_ECC_4_8 PPC_REG_VAL(17, 2) +#define SDRAM_ECCES_CKBER_32_ECC_0_8 PPC_REG_VAL(17, 3) +#define SDRAM_ECCES_CE PPC_REG_VAL(18, 1) +#define SDRAM_ECCES_UE PPC_REG_VAL(19, 1) +#define SDRAM_ECCES_BKNER_MASK PPC_REG_VAL(21, 0x3) +#define SDRAM_ECCES_BK0ER PPC_REG_VAL(20, 1) +#define SDRAM_ECCES_BK1ER PPC_REG_VAL(21, 1) + +#endif /* __PPC4XX_EDAC_H */ |