| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright (C) 2013 Google, Inc. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; version 2 of the License. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied wacbmem_entryanty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| #ifndef _BAYTRAIL_IOSF_H_ |
| #define _BAYTRAIL_IOSF_H_ |
| |
| #include <stdint.h> |
| #include <baytrail/pci_devs.h> |
| |
| /* |
| * The Bay Trail SoC has a message network called IOSF Sideband. The access |
| * routines are through 3 registers in PCI config space of 00:00.0: |
| * MCR - control register |
| * MDR - data register |
| * MCRX - control register extension |
| * The extension regist is only used for addresses that don't fit into the |
| * 8 bit register address. |
| */ |
| |
| #ifndef PCI_DEV |
| #define PCI_DEV(SEGBUS, DEV, FN) ( \ |
| (((SEGBUS) & 0xFFF) << 20) | \ |
| (((DEV) & 0x1F) << 15) | \ |
| (((FN) & 0x07) << 12)) |
| #endif |
| #define IOSF_PCI_DEV PCI_DEV(0,SOC_DEV,SOC_FUNC) |
| |
| #define MCR_REG 0xd0 |
| #define IOSF_OPCODE(x) ((x) << 24) |
| #define IOSF_PORT(x) ((0xff & (x)) << 16) |
| #define IOSF_REG(x) ((0xff & (x)) << 8) |
| #define IOSF_BYTE_EN 0xf0 |
| #define MDR_REG 0xd4 |
| #define MCRX_REG 0xd8 |
| |
| uint32_t iosf_bunit_read(int reg); |
| void iosf_bunit_write(int reg, uint32_t val); |
| uint32_t iosf_dunit_read(int reg); |
| void iosf_dunit_write(int reg, uint32_t val); |
| |
| /* IOSF ports. */ |
| #define IOSF_PORT_AUNIT 0x00 /* IO Arbiter unit */ |
| #define IOSF_PORT_SYSMEMC 0x01 /* System Memory Controller */ |
| #define IOSF_PORT_CPU_BUS 0x02 /* CPU Bus Interface Controller */ |
| #define IOSF_PORT_BUNIT 0x03 /* System Memroy Arbiter/Bunit */ |
| #define IOSF_PORT_PMC 0x04 /* Power Management Controller */ |
| #define IOSF_PORT_GFX 0x06 /* Graphics Adapter */ |
| #define IOSF_PORT_SYSMEMIO 0x0c /* System Memory IO */ |
| #define IOSF_PORT_USBPHY 0x43 /* USB PHY */ |
| #define IOSF_PORT_SATAPHY 0xa3 /* SATA PHY */ |
| #define IOSF_PORT_PCIEPHY 0xa3 /* PCIE PHY */ |
| |
| /* Read and write opcodes differ per port. */ |
| #define IOSF_OP_READ_AUNIT 0x10 |
| #define IOSF_OP_WRITE_AUNIT (IOSF_OP_READ_AUNIT | 1) |
| #define IOSF_OP_READ_SYSMEMC 0x10 |
| #define IOSF_OP_WRITE_SYSMEMC (IOSF_OP_READ_SYSMEMC | 1) |
| #define IOSF_OP_READ_CPU_BUS 0x10 |
| #define IOSF_OP_WRITE_CPU_BUS (IOSF_OP_READ_CPU_BUS | 1) |
| #define IOSF_OP_READ_BUNIT 0x10 |
| #define IOSF_OP_WRITE_BUNIT (IOSF_OP_READ_BUNIT | 1) |
| #define IOSF_OP_READ_PMC 0x06 |
| #define IOSF_OP_WRITE_PMC (IOSF_OP_READ_PMC | 1) |
| #define IOSF_OP_READ_GFX 0x00 |
| #define IOSF_OP_WRITE_GFX (IOSF_OP_READ_GFX | 1) |
| #define IOSF_OP_READ_SYSMEMIO 0x06 |
| #define IOSF_OP_WRITE_SYSMEMIO (IOSF_OP_READ_SYSMEMIO | 1) |
| #define IOSF_OP_READ_USBPHY 0x06 |
| #define IOSF_OP_WRITE_USBPHY (IOSF_OP_READ_USBPHY | 1) |
| #define IOSF_OP_READ_SATAPHY 0x00 |
| #define IOSF_OP_WRITE_SATAPHY (IOSF_OP_READ_SATAPHY | 1) |
| #define IOSF_OP_READ_PCIEPHY 0x00 |
| #define IOSF_OP_WRITE_PCIEPHY (IOSF_OP_READ_PCIEPHY | 1) |
| |
| |
| /* |
| * BUNIT Registers. |
| */ |
| |
| #define BNOCACHE 0x23 |
| /* BMBOUND has a 128MiB granularity. Highest address is 0xf8000000. */ |
| #define BUNIT_BMBOUND 0x25 |
| /* BMBOUND_HI describes the available ram above 4GiB. It has a |
| * 256MiB granularity. Physical address bits 35:28 are compared with 31:24 |
| * bits in the BMBOUND_HI register. Also note that since BMBOUND has 128MiB |
| * granularity care needs to be taken with the e820 map to account for a hole |
| * in the ram. */ |
| #define BUNIT_BMBOUND_HI 0x26 |
| #define BUNIT_MMCONF_REG 0x27 |
| /* The SMMRR registers define the SMM region in MiB granularity. */ |
| #define BUNIT_SMRRL 0x2e |
| #define BUNIT_SMRRH 0x2f |
| # define BUNIT_SMRR_ENABLE (1 << 31) |
| |
| /* |
| * DUNIT Registers. |
| */ |
| |
| #define DRP 0x00 |
| # define DRP_CH0_RANK0_EN (0x01 << 0) |
| # define DRP_CH0_RANK1_EN (0x01 << 1) |
| # define DRP_CH1_RANK0_EN (0x01 << 2) |
| # define DRP_CH1_RANK1_EN (0x01 << 3) |
| #define DTR0 0x01 |
| # define DTR0_SPEED_MASK 0x03 |
| # define DTR0_SPEED_800 0x00 |
| # define DTR0_SPEED_1066 0x01 |
| # define DTR0_SPEED_1333 0x02 |
| # define DTR0_SPEED_1600 0x03 |
| |
| #endif /* _BAYTRAIL_IOSF_H_ */ |
