1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * Copyright (c) 2008 Nuovation System Designs, LLC
4 * Grant Erickson <gerickson@nuovations.com>
5 *
6 * This file defines processor mnemonics for accessing and managing
7 * the IBM DDR1/DDR2 ECC controller found in the 405EX[r], 440SP,
8 * 440SPe, 460EX, 460GT and 460SX.
9 */
10
11#ifndef __PPC4XX_EDAC_H
12#define __PPC4XX_EDAC_H
13
14#include <linux/types.h>
15
16/*
17 * Macro for generating register field mnemonics
18 */
19#define PPC_REG_BITS 32
20#define PPC_REG_VAL(bit, val) ((val) << ((PPC_REG_BITS - 1) - (bit)))
21#define PPC_REG_DECODE(bit, val) ((val) >> ((PPC_REG_BITS - 1) - (bit)))
22
23/*
24 * IBM 4xx DDR1/DDR2 SDRAM memory controller registers (at least those
25 * relevant to ECC)
26 */
27#define SDRAM_BESR 0x00 /* Error status (read/clear) */
28#define SDRAM_BESRT 0x01 /* Error statuss (test/set) */
29#define SDRAM_BEARL 0x02 /* Error address low */
30#define SDRAM_BEARH 0x03 /* Error address high */
31#define SDRAM_WMIRQ 0x06 /* Write master (read/clear) */
32#define SDRAM_WMIRQT 0x07 /* Write master (test/set) */
33#define SDRAM_MCOPT1 0x20 /* Controller options 1 */
34#define SDRAM_MBXCF_BASE 0x40 /* Bank n configuration base */
35#define SDRAM_MBXCF(n) (SDRAM_MBXCF_BASE + (4 * (n)))
36#define SDRAM_MB0CF SDRAM_MBXCF(0)
37#define SDRAM_MB1CF SDRAM_MBXCF(1)
38#define SDRAM_MB2CF SDRAM_MBXCF(2)
39#define SDRAM_MB3CF SDRAM_MBXCF(3)
40#define SDRAM_ECCCR 0x98 /* ECC error status */
41#define SDRAM_ECCES SDRAM_ECCCR
42
43/*
44 * PLB Master IDs
45 */
46#define SDRAM_PLB_M0ID_FIRST 0
47#define SDRAM_PLB_M0ID_ICU SDRAM_PLB_M0ID_FIRST
48#define SDRAM_PLB_M0ID_PCIE0 1
49#define SDRAM_PLB_M0ID_PCIE1 2
50#define SDRAM_PLB_M0ID_DMA 3
51#define SDRAM_PLB_M0ID_DCU 4
52#define SDRAM_PLB_M0ID_OPB 5
53#define SDRAM_PLB_M0ID_MAL 6
54#define SDRAM_PLB_M0ID_SEC 7
55#define SDRAM_PLB_M0ID_AHB 8
56#define SDRAM_PLB_M0ID_LAST SDRAM_PLB_M0ID_AHB
57#define SDRAM_PLB_M0ID_COUNT (SDRAM_PLB_M0ID_LAST - \
58 SDRAM_PLB_M0ID_FIRST + 1)
59
60/*
61 * Memory Controller Bus Error Status Register
62 */
63#define SDRAM_BESR_MASK PPC_REG_VAL(7, 0xFF)
64#define SDRAM_BESR_M0ID_MASK PPC_REG_VAL(3, 0xF)
65#define SDRAM_BESR_M0ID_DECODE(n) PPC_REG_DECODE(3, n)
66#define SDRAM_BESR_M0ID_ICU PPC_REG_VAL(3, SDRAM_PLB_M0ID_ICU)
67#define SDRAM_BESR_M0ID_PCIE0 PPC_REG_VAL(3, SDRAM_PLB_M0ID_PCIE0)
68#define SDRAM_BESR_M0ID_PCIE1 PPC_REG_VAL(3, SDRAM_PLB_M0ID_PCIE1)
69#define SDRAM_BESR_M0ID_DMA PPC_REG_VAL(3, SDRAM_PLB_M0ID_DMA)
70#define SDRAM_BESR_M0ID_DCU PPC_REG_VAL(3, SDRAM_PLB_M0ID_DCU)
71#define SDRAM_BESR_M0ID_OPB PPC_REG_VAL(3, SDRAM_PLB_M0ID_OPB)
72#define SDRAM_BESR_M0ID_MAL PPC_REG_VAL(3, SDRAM_PLB_M0ID_MAL)
73#define SDRAM_BESR_M0ID_SEC PPC_REG_VAL(3, SDRAM_PLB_M0ID_SEC)
74#define SDRAM_BESR_M0ID_AHB PPC_REG_VAL(3, SDRAM_PLB_M0ID_AHB)
75#define SDRAM_BESR_M0ET_MASK PPC_REG_VAL(6, 0x7)
76#define SDRAM_BESR_M0ET_NONE PPC_REG_VAL(6, 0)
77#define SDRAM_BESR_M0ET_ECC PPC_REG_VAL(6, 1)
78#define SDRAM_BESR_M0RW_MASK PPC_REG_VAL(7, 1)
79#define SDRAM_BESR_M0RW_WRITE PPC_REG_VAL(7, 0)
80#define SDRAM_BESR_M0RW_READ PPC_REG_VAL(7, 1)
81
82/*
83 * Memory Controller PLB Write Master Interrupt Register
84 */
85#define SDRAM_WMIRQ_MASK PPC_REG_VAL(8, 0x1FF)
86#define SDRAM_WMIRQ_ENCODE(id) PPC_REG_VAL((id % \
87 SDRAM_PLB_M0ID_COUNT), 1)
88#define SDRAM_WMIRQ_ICU PPC_REG_VAL(SDRAM_PLB_M0ID_ICU, 1)
89#define SDRAM_WMIRQ_PCIE0 PPC_REG_VAL(SDRAM_PLB_M0ID_PCIE0, 1)
90#define SDRAM_WMIRQ_PCIE1 PPC_REG_VAL(SDRAM_PLB_M0ID_PCIE1, 1)
91#define SDRAM_WMIRQ_DMA PPC_REG_VAL(SDRAM_PLB_M0ID_DMA, 1)
92#define SDRAM_WMIRQ_DCU PPC_REG_VAL(SDRAM_PLB_M0ID_DCU, 1)
93#define SDRAM_WMIRQ_OPB PPC_REG_VAL(SDRAM_PLB_M0ID_OPB, 1)
94#define SDRAM_WMIRQ_MAL PPC_REG_VAL(SDRAM_PLB_M0ID_MAL, 1)
95#define SDRAM_WMIRQ_SEC PPC_REG_VAL(SDRAM_PLB_M0ID_SEC, 1)
96#define SDRAM_WMIRQ_AHB PPC_REG_VAL(SDRAM_PLB_M0ID_AHB, 1)
97
98/*
99 * Memory Controller Options 1 Register
100 */
101#define SDRAM_MCOPT1_MCHK_MASK PPC_REG_VAL(3, 0x3) /* ECC mask */
102#define SDRAM_MCOPT1_MCHK_NON PPC_REG_VAL(3, 0x0) /* No ECC gen */
103#define SDRAM_MCOPT1_MCHK_GEN PPC_REG_VAL(3, 0x2) /* ECC gen */
104#define SDRAM_MCOPT1_MCHK_CHK PPC_REG_VAL(3, 0x1) /* ECC gen and chk */
105#define SDRAM_MCOPT1_MCHK_CHK_REP PPC_REG_VAL(3, 0x3) /* ECC gen/chk/rpt */
106#define SDRAM_MCOPT1_MCHK_DECODE(n) ((((u32)(n)) >> 28) & 0x3)
107#define SDRAM_MCOPT1_RDEN_MASK PPC_REG_VAL(4, 0x1) /* Rgstrd DIMM mask */
108#define SDRAM_MCOPT1_RDEN PPC_REG_VAL(4, 0x1) /* Rgstrd DIMM enbl */
109#define SDRAM_MCOPT1_WDTH_MASK PPC_REG_VAL(7, 0x1) /* Width mask */
110#define SDRAM_MCOPT1_WDTH_32 PPC_REG_VAL(7, 0x0) /* 32 bits */
111#define SDRAM_MCOPT1_WDTH_16 PPC_REG_VAL(7, 0x1) /* 16 bits */
112#define SDRAM_MCOPT1_DDR_TYPE_MASK PPC_REG_VAL(11, 0x1) /* DDR type mask */
113#define SDRAM_MCOPT1_DDR1_TYPE PPC_REG_VAL(11, 0x0) /* DDR1 type */
114#define SDRAM_MCOPT1_DDR2_TYPE PPC_REG_VAL(11, 0x1) /* DDR2 type */
115
116/*
117 * Memory Bank 0 - n Configuration Register
118 */
119#define SDRAM_MBCF_BA_MASK PPC_REG_VAL(12, 0x1FFF)
120#define SDRAM_MBCF_SZ_MASK PPC_REG_VAL(19, 0xF)
121#define SDRAM_MBCF_SZ_DECODE(mbxcf) PPC_REG_DECODE(19, mbxcf)
122#define SDRAM_MBCF_SZ_4MB PPC_REG_VAL(19, 0x0)
123#define SDRAM_MBCF_SZ_8MB PPC_REG_VAL(19, 0x1)
124#define SDRAM_MBCF_SZ_16MB PPC_REG_VAL(19, 0x2)
125#define SDRAM_MBCF_SZ_32MB PPC_REG_VAL(19, 0x3)
126#define SDRAM_MBCF_SZ_64MB PPC_REG_VAL(19, 0x4)
127#define SDRAM_MBCF_SZ_128MB PPC_REG_VAL(19, 0x5)
128#define SDRAM_MBCF_SZ_256MB PPC_REG_VAL(19, 0x6)
129#define SDRAM_MBCF_SZ_512MB PPC_REG_VAL(19, 0x7)
130#define SDRAM_MBCF_SZ_1GB PPC_REG_VAL(19, 0x8)
131#define SDRAM_MBCF_SZ_2GB PPC_REG_VAL(19, 0x9)
132#define SDRAM_MBCF_SZ_4GB PPC_REG_VAL(19, 0xA)
133#define SDRAM_MBCF_SZ_8GB PPC_REG_VAL(19, 0xB)
134#define SDRAM_MBCF_AM_MASK PPC_REG_VAL(23, 0xF)
135#define SDRAM_MBCF_AM_MODE0 PPC_REG_VAL(23, 0x0)
136#define SDRAM_MBCF_AM_MODE1 PPC_REG_VAL(23, 0x1)
137#define SDRAM_MBCF_AM_MODE2 PPC_REG_VAL(23, 0x2)
138#define SDRAM_MBCF_AM_MODE3 PPC_REG_VAL(23, 0x3)
139#define SDRAM_MBCF_AM_MODE4 PPC_REG_VAL(23, 0x4)
140#define SDRAM_MBCF_AM_MODE5 PPC_REG_VAL(23, 0x5)
141#define SDRAM_MBCF_AM_MODE6 PPC_REG_VAL(23, 0x6)
142#define SDRAM_MBCF_AM_MODE7 PPC_REG_VAL(23, 0x7)
143#define SDRAM_MBCF_AM_MODE8 PPC_REG_VAL(23, 0x8)
144#define SDRAM_MBCF_AM_MODE9 PPC_REG_VAL(23, 0x9)
145#define SDRAM_MBCF_BE_MASK PPC_REG_VAL(31, 0x1)
146#define SDRAM_MBCF_BE_DISABLE PPC_REG_VAL(31, 0x0)
147#define SDRAM_MBCF_BE_ENABLE PPC_REG_VAL(31, 0x1)
148
149/*
150 * ECC Error Status
151 */
152#define SDRAM_ECCES_MASK PPC_REG_VAL(21, 0x3FFFFF)
153#define SDRAM_ECCES_BNCE_MASK PPC_REG_VAL(15, 0xFFFF)
154#define SDRAM_ECCES_BNCE_ENCODE(lane) PPC_REG_VAL(((lane) & 0xF), 1)
155#define SDRAM_ECCES_CKBER_MASK PPC_REG_VAL(17, 0x3)
156#define SDRAM_ECCES_CKBER_NONE PPC_REG_VAL(17, 0)
157#define SDRAM_ECCES_CKBER_16_ECC_0_3 PPC_REG_VAL(17, 2)
158#define SDRAM_ECCES_CKBER_32_ECC_0_3 PPC_REG_VAL(17, 1)
159#define SDRAM_ECCES_CKBER_32_ECC_4_8 PPC_REG_VAL(17, 2)
160#define SDRAM_ECCES_CKBER_32_ECC_0_8 PPC_REG_VAL(17, 3)
161#define SDRAM_ECCES_CE PPC_REG_VAL(18, 1)
162#define SDRAM_ECCES_UE PPC_REG_VAL(19, 1)
163#define SDRAM_ECCES_BKNER_MASK PPC_REG_VAL(21, 0x3)
164#define SDRAM_ECCES_BK0ER PPC_REG_VAL(20, 1)
165#define SDRAM_ECCES_BK1ER PPC_REG_VAL(21, 1)
166
167#endif /* __PPC4XX_EDAC_H */
168

source code of linux/drivers/edac/ppc4xx_edac.h