| /* SPDX-License-Identifier: GPL-2.0-only */ |
| /* |
| * 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. |
| */ |
| |
| #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 */ |
