1*83d290c5STom Rini /* SPDX-License-Identifier: GPL-2.0 */ 28c30b571SSimon Glass /* 38c30b571SSimon Glass * Copyright (c) 2016 Google, Inc 48c30b571SSimon Glass */ 58c30b571SSimon Glass 68c30b571SSimon Glass #ifndef __ASM_LPC_COMMON_H 78c30b571SSimon Glass #define __ASM_LPC_COMMON_H 88c30b571SSimon Glass 98c30b571SSimon Glass #define PCH_RCBA_BASE 0xf0 108c30b571SSimon Glass 118c30b571SSimon Glass #define RC 0x3400 /* 32bit */ 128c30b571SSimon Glass #define GCS 0x3410 /* 32bit */ 138c30b571SSimon Glass 148c30b571SSimon Glass #define PMBASE 0x40 158c30b571SSimon Glass #define ACPI_CNTL 0x44 168c30b571SSimon Glass 178c30b571SSimon Glass #define LPC_IO_DEC 0x80 /* IO Decode Ranges Register */ 188c30b571SSimon Glass #define COMB_DEC_RANGE (1 << 4) /* 0x2f8-0x2ff (COM2) */ 198c30b571SSimon Glass #define COMA_DEC_RANGE (0 << 0) /* 0x3f8-0x3ff (COM1) */ 208c30b571SSimon Glass #define LPC_EN 0x82 /* LPC IF Enables Register */ 218c30b571SSimon Glass #define CNF2_LPC_EN (1 << 13) /* 0x4e/0x4f */ 228c30b571SSimon Glass #define CNF1_LPC_EN (1 << 12) /* 0x2e/0x2f */ 238c30b571SSimon Glass #define MC_LPC_EN (1 << 11) /* 0x62/0x66 */ 248c30b571SSimon Glass #define KBC_LPC_EN (1 << 10) /* 0x60/0x64 */ 258c30b571SSimon Glass #define GAMEH_LPC_EN (1 << 9) /* 0x208/0x20f */ 268c30b571SSimon Glass #define GAMEL_LPC_EN (1 << 8) /* 0x200/0x207 */ 278c30b571SSimon Glass #define FDD_LPC_EN (1 << 3) /* LPC_IO_DEC[12] */ 288c30b571SSimon Glass #define LPT_LPC_EN (1 << 2) /* LPC_IO_DEC[9:8] */ 298c30b571SSimon Glass #define COMB_LPC_EN (1 << 1) /* LPC_IO_DEC[6:4] */ 308c30b571SSimon Glass #define COMA_LPC_EN (1 << 0) /* LPC_IO_DEC[3:2] */ 318c30b571SSimon Glass #define LPC_GEN1_DEC 0x84 /* LPC IF Generic Decode Range 1 */ 328c30b571SSimon Glass #define LPC_GEN2_DEC 0x88 /* LPC IF Generic Decode Range 2 */ 338c30b571SSimon Glass #define LPC_GEN3_DEC 0x8c /* LPC IF Generic Decode Range 3 */ 348c30b571SSimon Glass #define LPC_GEN4_DEC 0x90 /* LPC IF Generic Decode Range 4 */ 358c30b571SSimon Glass #define LPC_GENX_DEC(x) (0x84 + 4 * (x)) 368c30b571SSimon Glass #define GEN_DEC_RANGE_256B 0xfc0000 /* 256 Bytes */ 378c30b571SSimon Glass #define GEN_DEC_RANGE_128B 0x7c0000 /* 128 Bytes */ 388c30b571SSimon Glass #define GEN_DEC_RANGE_64B 0x3c0000 /* 64 Bytes */ 398c30b571SSimon Glass #define GEN_DEC_RANGE_32B 0x1c0000 /* 32 Bytes */ 408c30b571SSimon Glass #define GEN_DEC_RANGE_16B 0x0c0000 /* 16 Bytes */ 418c30b571SSimon Glass #define GEN_DEC_RANGE_8B 0x040000 /* 8 Bytes */ 428c30b571SSimon Glass #define GEN_DEC_RANGE_4B 0x000000 /* 4 Bytes */ 438c30b571SSimon Glass #define GEN_DEC_RANGE_EN (1 << 0) /* Range Enable */ 448c30b571SSimon Glass 458c30b571SSimon Glass /** 468c30b571SSimon Glass * lpc_common_early_init() - Set up common LPC init 478c30b571SSimon Glass * 488c30b571SSimon Glass * This sets up the legacy decode areas, GEN_DEC, SPI prefetch and Port80. It 498c30b571SSimon Glass * also puts the RCB in the correct place so that RCB_REG() works. 508c30b571SSimon Glass * 518c30b571SSimon Glass * @dev: LPC device (a child of the PCH) 528c30b571SSimon Glass * @return 0 on success, -ve on error 538c30b571SSimon Glass */ 548c30b571SSimon Glass int lpc_common_early_init(struct udevice *dev); 558c30b571SSimon Glass 568c30b571SSimon Glass int lpc_set_spi_protect(struct udevice *dev, int bios_ctrl, bool protect); 578c30b571SSimon Glass 588c30b571SSimon Glass #endif 59