2 * Copyright (c) 2014 Google, Inc
4 * From Coreboot src/southbridge/intel/bd82x6x/pch.h
6 * Copyright (C) 2008-2009 coresystems GmbH
7 * Copyright (C) 2012 The Chromium OS Authors. All rights reserved.
9 * SPDX-License-Identifier: GPL-2.0
12 #ifndef _ASM_ARCH_PCH_H
13 #define _ASM_ARCH_PCH_H
17 /* PCI Configuration Space (D31:F0): LPC */
18 #define PCH_LPC_DEV PCI_BDF(0, 0x1f, 0)
20 #define LPC_IO_DEC 0x80 /* IO Decode Ranges Register */
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))
38 #define DEFAULT_RCBA 0xfed1c000
40 /* Root Complex Register Block */
41 #define RCB_REG(reg) (DEFAULT_RCBA + (reg))
43 #define PCH_RCBA_BASE 0xf0
45 #define VCH 0x0000 /* 32bit */
46 #define VCAP1 0x0004 /* 32bit */
47 #define VCAP2 0x0008 /* 32bit */
48 #define PVC 0x000c /* 16bit */
49 #define PVS 0x000e /* 16bit */
51 #define V0CAP 0x0010 /* 32bit */
52 #define V0CTL 0x0014 /* 32bit */
53 #define V0STS 0x001a /* 16bit */
55 #define V1CAP 0x001c /* 32bit */
56 #define V1CTL 0x0020 /* 32bit */
57 #define V1STS 0x0026 /* 16bit */
59 #define RCTCL 0x0100 /* 32bit */
60 #define ESD 0x0104 /* 32bit */
61 #define ULD 0x0110 /* 32bit */
62 #define ULBA 0x0118 /* 64bit */
64 #define RP1D 0x0120 /* 32bit */
65 #define RP1BA 0x0128 /* 64bit */
66 #define RP2D 0x0130 /* 32bit */
67 #define RP2BA 0x0138 /* 64bit */
68 #define RP3D 0x0140 /* 32bit */
69 #define RP3BA 0x0148 /* 64bit */
70 #define RP4D 0x0150 /* 32bit */
71 #define RP4BA 0x0158 /* 64bit */
72 #define HDD 0x0160 /* 32bit */
73 #define HDBA 0x0168 /* 64bit */
74 #define RP5D 0x0170 /* 32bit */
75 #define RP5BA 0x0178 /* 64bit */
76 #define RP6D 0x0180 /* 32bit */
77 #define RP6BA 0x0188 /* 64bit */
79 #define RPC 0x0400 /* 32bit */
80 #define RPFN 0x0404 /* 32bit */
82 #define SPI_FREQ_SWSEQ 0x3893
83 #define SPI_DESC_COMP0 0x38b0
84 #define SPI_FREQ_WR_ERA 0x38b4
85 #define SOFT_RESET_CTRL 0x38f4
86 #define SOFT_RESET_DATA 0x38f8
88 #define RC 0x3400 /* 32bit */
89 #define HPTC 0x3404 /* 32bit */
90 #define GCS 0x3410 /* 32bit */
91 #define BUC 0x3414 /* 32bit */
92 #define PCH_DISABLE_GBE (1 << 5)
93 #define FD 0x3418 /* 32bit */
94 #define DISPBDF 0x3424 /* 16bit */
95 #define FD2 0x3428 /* 32bit */
96 #define CG 0x341c /* 32bit */
99 * lpc_early_init() - set up LPC serial ports and other early things
101 * @blob: Device tree blob
102 * @node: Offset of LPC node
103 * @dev: PCH PCI device containing the LPC
104 * @return 0 if OK, -ve on error
106 int lpc_early_init(const void *blob, int node, pci_dev_t dev);