Hou Zhiqiang | b89e3d9 | 2019-04-24 22:33:02 +0800 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0+ */ |
| 2 | /* |
| 3 | * Copyright 2019 NXP |
| 4 | * |
| 5 | * PCIe DM U-Boot driver for Freescale PowerPC SoCs |
| 6 | * Author: Hou Zhiqiang <Zhiqiang.Hou@nxp.com> |
| 7 | */ |
| 8 | |
| 9 | #ifndef _PCIE_FSL_H_ |
| 10 | #define _PCIE_FSL_H_ |
| 11 | |
Hou Zhiqiang | d18d06a | 2019-08-27 10:13:51 +0000 | [diff] [blame] | 12 | /* GPEX CSR */ |
| 13 | #define CSR_CLASSCODE 0x474 |
| 14 | |
Hou Zhiqiang | b89e3d9 | 2019-04-24 22:33:02 +0800 | [diff] [blame] | 15 | #ifdef CONFIG_SYS_FSL_PCI_VER_3_X |
| 16 | #define FSL_PCIE_CAP_ID 0x70 |
| 17 | #else |
| 18 | #define FSL_PCIE_CAP_ID 0x4c |
| 19 | #endif |
| 20 | /* PCIe Device Control Register */ |
| 21 | #define PCI_DCR (FSL_PCIE_CAP_ID + 0x08) |
| 22 | /* PCIe Device Status Register */ |
| 23 | #define PCI_DSR (FSL_PCIE_CAP_ID + 0x0a) |
| 24 | /* PCIe Link Control Register */ |
| 25 | #define PCI_LCR (FSL_PCIE_CAP_ID + 0x10) |
| 26 | /* PCIe Link Status Register */ |
| 27 | #define PCI_LSR (FSL_PCIE_CAP_ID + 0x12) |
| 28 | |
Hou Zhiqiang | 0205beb | 2020-10-15 14:54:34 +0800 | [diff] [blame] | 29 | #define DBI_RO_WR_EN 0x8bc |
| 30 | |
Tom Rini | ecc8d42 | 2022-11-16 13:10:33 -0500 | [diff] [blame] | 31 | #ifndef CFG_SYS_PCI_MEMORY_BUS |
| 32 | #define CFG_SYS_PCI_MEMORY_BUS 0 |
Hou Zhiqiang | b89e3d9 | 2019-04-24 22:33:02 +0800 | [diff] [blame] | 33 | #endif |
| 34 | |
Tom Rini | ecc8d42 | 2022-11-16 13:10:33 -0500 | [diff] [blame] | 35 | #ifndef CFG_SYS_PCI_MEMORY_PHYS |
| 36 | #define CFG_SYS_PCI_MEMORY_PHYS 0 |
Hou Zhiqiang | b89e3d9 | 2019-04-24 22:33:02 +0800 | [diff] [blame] | 37 | #endif |
| 38 | |
Tom Rini | ecc8d42 | 2022-11-16 13:10:33 -0500 | [diff] [blame] | 39 | #if defined(CONFIG_SYS_PCI_64BIT) && !defined(CFG_SYS_PCI64_MEMORY_BUS) |
| 40 | #define CFG_SYS_PCI64_MEMORY_BUS (64ull * 1024 * 1024 * 1024) |
Hou Zhiqiang | b89e3d9 | 2019-04-24 22:33:02 +0800 | [diff] [blame] | 41 | #endif |
| 42 | |
| 43 | #define PEX_CSR0_LTSSM_MASK 0xFC |
| 44 | #define PEX_CSR0_LTSSM_SHIFT 2 |
| 45 | #define LTSSM_L0_REV3 0x11 |
| 46 | #define LTSSM_L0 0x16 |
| 47 | |
Hou Zhiqiang | fbcb2ff | 2019-08-27 10:13:54 +0000 | [diff] [blame] | 48 | struct fsl_pcie_data { |
| 49 | u32 block_offset; /* Offset from CCSR of 1st controller */ |
| 50 | u32 block_offset_mask; /* Mask out the CCSR base */ |
| 51 | u32 stride; /* Offset stride between controllers */ |
| 52 | }; |
| 53 | |
Hou Zhiqiang | b89e3d9 | 2019-04-24 22:33:02 +0800 | [diff] [blame] | 54 | struct fsl_pcie { |
| 55 | int idx; |
| 56 | struct udevice *bus; |
| 57 | void __iomem *regs; |
| 58 | u32 law_trgt_if; /* LAW target ID */ |
| 59 | u32 block_rev; /* IP block revision */ |
| 60 | bool mode; /* RC&EP mode flag */ |
| 61 | bool enabled; /* Enable status */ |
| 62 | struct list_head list; |
Hou Zhiqiang | fbcb2ff | 2019-08-27 10:13:54 +0000 | [diff] [blame] | 63 | struct fsl_pcie_data *info; |
Hou Zhiqiang | b89e3d9 | 2019-04-24 22:33:02 +0800 | [diff] [blame] | 64 | }; |
| 65 | |
| 66 | extern struct list_head fsl_pcie_list; |
| 67 | |
| 68 | #endif /* _PCIE_FSL_H_ */ |