--- /dev/null
+/*
+ * (C) Copyright 2008
+ * Stefan Roese, DENX Software Engineering, sr@denx.de.
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#ifndef _PPC4xx_EBC_H_
+#define _PPC4xx_EBC_H_
+
+/*
+ * Currently there are two register layout versions for the IBM EBC core
+ * used on 4xx PPC's. The following grouping lists the first layout.
+ * Within this group there is a slight variation concerning the bit field
+ * position of the EMPL and EMPH fields:
+ */
+#if defined(CONFIG_405GP) || \
+ defined(CONFIG_405EP) || \
+ defined(CONFIG_440EP) || defined(CONFIG_440GR) || \
+ defined(CONFIG_440EPX) || defined(CONFIG_440GRX)
+#define CONFIG_EBC_PPC4xx_IBM_VER1
+#if defined(CONFIG_405GP) || \
+ defined(CONFIG_405EP)
+#define EBC_CFG_EMPH_POS 8
+#define EBC_CFG_EMPL_POS 6
+#else
+#define EBC_CFG_EMPH_POS 6
+#define EBC_CFG_EMPL_POS 8
+#endif
+#endif
+
+/*
+ * Define the max number of EBC banks (chip selects)
+ */
+#if defined(CONFIG_405GP) || \
+ defined(CONFIG_405EZ) || \
+ defined(CONFIG_440GP) || defined(CONFIG_440GX)
+#define EBC_NUM_BANKS 8
+#endif
+
+#if defined(CONFIG_405EP)
+#define EBC_NUM_BANKS 5
+#endif
+
+#if defined(CONFIG_405EX) || \
+ defined(CONFIG_460SX)
+#define EBC_NUM_BANKS 4
+#endif
+
+#if defined(CONFIG_440EP) || defined(CONFIG_440GR) || \
+ defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \
+ defined(CONFIG_460EX) || defined(CONFIG_460GT)
+#define EBC_NUM_BANKS 6
+#endif
+
+#if defined(CONFIG_440SP) || defined(CONFIG_440SPE) || \
+ defined(CONFIG_APM821XX)
+#define EBC_NUM_BANKS 3
+#endif
+
+/* Bank Configuration Register */
+#define EBC_BXCR(n) (n)
+#define EBC_BXCR_BANK_SIZE(n) (0x100000 << (((n) & EBC_BXCR_BS_MASK) >> 17))
+
+#define EBC_BXCR_BAS_MASK PPC_REG_VAL(11, 0xFFF)
+#define EBC_BXCR_BAS_ENCODE(n) (((static_cast(u32, n)) & EBC_BXCR_BAS_MASK))
+#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)
+#if defined(CONFIG_EBC_PPC4xx_IBM_VER1)
+#define EBC_BXCR_BW_32BIT PPC_REG_VAL(18, 0x2)
+#else
+#define EBC_BXCR_BW_32BIT PPC_REG_VAL(18, 0x3)
+#endif
+
+/* 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, (static_cast(u32, n)) & 0xFF)
+#define EBC_BXAP_FWT_ENCODE(n) PPC_REG_VAL(5, (static_cast(u32, n)) & 0x1F)
+#define EBC_BXAP_BWT_ENCODE(n) PPC_REG_VAL(8, (static_cast(u32, 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, (static_cast(u32, n)) & 0x3)
+#define EBC_BXAP_OEN_ENCODE(n) PPC_REG_VAL(15, (static_cast(u32, n)) & 0x3)
+#define EBC_BXAP_WBN_ENCODE(n) PPC_REG_VAL(17, (static_cast(u32, n)) & 0x3)
+#define EBC_BXAP_WBF_ENCODE(n) PPC_REG_VAL(19, (static_cast(u32, n)) & 0x3)
+#define EBC_BXAP_TH_ENCODE(n) PPC_REG_VAL(22, (static_cast(u32, 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)
+
+/* Common fields in EBC0_CFG register */
+#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_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, (static_cast(u32, n)) & 0x1F)
+
+/* Now the two versions of the other bits */
+#if defined(CONFIG_EBC_PPC4xx_IBM_VER1)
+#define EBC_CFG_EBTC_MASK PPC_REG_VAL(0, 0x1)
+#define EBC_CFG_EBTC_HI PPC_REG_VAL(0, 0x0)
+#define EBC_CFG_EBTC_DRIVEN PPC_REG_VAL(0, 0x1)
+#define EBC_CFG_EMPH_MASK PPC_REG_VAL(EBC_CFG_EMPH_POS, 0x3)
+#define EBC_CFG_EMPH_ENCODE(n) PPC_REG_VAL(EBC_CFG_EMPH_POS, \
+ (static_cast(u32, n)) & 0x3)
+#define EBC_CFG_EMPL_MASK PPC_REG_VAL(EBC_CFG_EMPL_POS, 0x3)
+#define EBC_CFG_EMPL_ENCODE(n) PPC_REG_VAL(EBC_CFG_EMPH_POS, \
+ (static_cast(u32, n)) & 0x3)
+#define EBC_CFG_CSTC_MASK PPC_REG_VAL(9, 0x1)
+#define EBC_CFG_CSTC_HI PPC_REG_VAL(9, 0x0)
+#define EBC_CFG_CSTC_DRIVEN PPC_REG_VAL(9, 0x1)
+#define EBC_CFG_BPR_MASK PPC_REG_VAL(11, 0x3)
+#define EBC_CFG_BPR_1DW PPC_REG_VAL(11, 0x0)
+#define EBC_CFG_BPR_2DW PPC_REG_VAL(11, 0x1)
+#define EBC_CFG_BPR_4DW PPC_REG_VAL(11, 0x2)
+#define EBC_CFG_EMS_MASK PPC_REG_VAL(13, 0x3)
+#define EBC_CFG_EMS_8BIT PPC_REG_VAL(13, 0x0)
+#define EBC_CFG_EMS_16BIT PPC_REG_VAL(13, 0x1)
+#define EBC_CFG_EMS_32BIT PPC_REG_VAL(13, 0x2)
+#else
+#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_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_HI PPC_REG_VAL(8, 0x0)
+#define EBC_CFG_OEO_PREVIOUS 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_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)
+#endif
+
+#endif /* _PPC4xx_EBC_H_ */
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