| Simon Glass | 63e08a2 | 2016-03-11 22:06:57 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2016 Google, Inc |
| 3 | * |
| 4 | * SPDX-License-Identifier: GPL-2.0 |
| 5 | */ |
| 6 | |
| 7 | #ifndef __ASM_LPC_COMMON_H |
| 8 | #define __ASM_LPC_COMMON_H |
| 9 | |
| 10 | #define PCH_RCBA_BASE 0xf0 |
| 11 | |
| 12 | #define RC 0x3400 /* 32bit */ |
| 13 | #define GCS 0x3410 /* 32bit */ |
| 14 | |
| 15 | #define PMBASE 0x40 |
| 16 | #define ACPI_CNTL 0x44 |
| 17 | |
| 18 | #define LPC_IO_DEC 0x80 /* IO Decode Ranges Register */ |
| 19 | #define COMB_DEC_RANGE (1 << 4) /* 0x2f8-0x2ff (COM2) */ |
| 20 | #define COMA_DEC_RANGE (0 << 0) /* 0x3f8-0x3ff (COM1) */ |
| 21 | #define LPC_EN 0x82 /* LPC IF Enables Register */ |
| 22 | #define CNF2_LPC_EN (1 << 13) /* 0x4e/0x4f */ |
| 23 | #define CNF1_LPC_EN (1 << 12) /* 0x2e/0x2f */ |
| 24 | #define MC_LPC_EN (1 << 11) /* 0x62/0x66 */ |
| 25 | #define KBC_LPC_EN (1 << 10) /* 0x60/0x64 */ |
| 26 | #define GAMEH_LPC_EN (1 << 9) /* 0x208/0x20f */ |
| 27 | #define GAMEL_LPC_EN (1 << 8) /* 0x200/0x207 */ |
| 28 | #define FDD_LPC_EN (1 << 3) /* LPC_IO_DEC[12] */ |
| 29 | #define LPT_LPC_EN (1 << 2) /* LPC_IO_DEC[9:8] */ |
| 30 | #define COMB_LPC_EN (1 << 1) /* LPC_IO_DEC[6:4] */ |
| 31 | #define COMA_LPC_EN (1 << 0) /* LPC_IO_DEC[3:2] */ |
| 32 | #define LPC_GEN1_DEC 0x84 /* LPC IF Generic Decode Range 1 */ |
| 33 | #define LPC_GEN2_DEC 0x88 /* LPC IF Generic Decode Range 2 */ |
| 34 | #define LPC_GEN3_DEC 0x8c /* LPC IF Generic Decode Range 3 */ |
| 35 | #define LPC_GEN4_DEC 0x90 /* LPC IF Generic Decode Range 4 */ |
| 36 | #define LPC_GENX_DEC(x) (0x84 + 4 * (x)) |
| 37 | #define GEN_DEC_RANGE_256B 0xfc0000 /* 256 Bytes */ |
| 38 | #define GEN_DEC_RANGE_128B 0x7c0000 /* 128 Bytes */ |
| 39 | #define GEN_DEC_RANGE_64B 0x3c0000 /* 64 Bytes */ |
| 40 | #define GEN_DEC_RANGE_32B 0x1c0000 /* 32 Bytes */ |
| 41 | #define GEN_DEC_RANGE_16B 0x0c0000 /* 16 Bytes */ |
| 42 | #define GEN_DEC_RANGE_8B 0x040000 /* 8 Bytes */ |
| 43 | #define GEN_DEC_RANGE_4B 0x000000 /* 4 Bytes */ |
| 44 | #define GEN_DEC_RANGE_EN (1 << 0) /* Range Enable */ |
| 45 | |
| 46 | /** |
| 47 | * lpc_common_early_init() - Set up common LPC init |
| 48 | * |
| 49 | * This sets up the legacy decode areas, GEN_DEC, SPI prefetch and Port80. It |
| 50 | * also puts the RCB in the correct place so that RCB_REG() works. |
| 51 | * |
| 52 | * @dev: LPC device (a child of the PCH) |
| 53 | * @return 0 on success, -ve on error |
| 54 | */ |
| 55 | int lpc_common_early_init(struct udevice *dev); |
| 56 | |
| 57 | int lpc_set_spi_protect(struct udevice *dev, int bios_ctrl, bool protect); |
| 58 | |
| 59 | #endif |