| /* |
| * 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 |
| */ |
| |
| #include <arch/io.h> |
| #include <baytrail/iosf.h> |
| |
| #if !defined(__PRE_RAM__) |
| #define IOSF_PCI_BASE (CONFIG_MMCONF_BASE_ADDRESS + (IOSF_PCI_DEV << 12)) |
| |
| static inline void write_iosf_reg(int reg, uint32_t value) |
| { |
| write32((u32 *)(IOSF_PCI_BASE + reg), value); |
| } |
| static inline uint32_t read_iosf_reg(int reg) |
| { |
| return read32((u32 *)(IOSF_PCI_BASE + reg)); |
| } |
| #else |
| static inline void write_iosf_reg(int reg, uint32_t value) |
| { |
| pci_write_config32(IOSF_PCI_DEV, reg, value); |
| } |
| static inline uint32_t read_iosf_reg(int reg) |
| { |
| return pci_read_config32(IOSF_PCI_DEV, reg); |
| } |
| #endif |
| |
| /* Common sequences for all the port accesses. */ |
| static uint32_t iosf_read_port(uint32_t cr, int reg) |
| { |
| cr |= IOSF_REG(reg) | IOSF_BYTE_EN; |
| write_iosf_reg(MCRX_REG, IOSF_REG_UPPER(reg)); |
| write_iosf_reg(MCR_REG, cr); |
| return read_iosf_reg(MDR_REG); |
| } |
| |
| static void iosf_write_port(uint32_t cr, int reg, uint32_t val) |
| { |
| cr |= IOSF_REG(reg) | IOSF_BYTE_EN; |
| write_iosf_reg(MDR_REG, val); |
| write_iosf_reg(MCRX_REG, IOSF_REG_UPPER(reg)); |
| write_iosf_reg(MCR_REG, cr); |
| } |
| |
| #define IOSF_READ(port) \ |
| IOSF_OPCODE(IOSF_OP_READ_##port) | IOSF_PORT(IOSF_PORT_##port) |
| #define IOSF_WRITE(port) \ |
| IOSF_OPCODE(IOSF_OP_WRITE_##port) | IOSF_PORT(IOSF_PORT_##port) |
| |
| uint32_t iosf_bunit_read(int reg) |
| { |
| return iosf_read_port(IOSF_READ(BUNIT), reg); |
| } |
| |
| void iosf_bunit_write(int reg, uint32_t val) |
| { |
| iosf_write_port(IOSF_WRITE(BUNIT), reg, val); |
| } |
| |
| uint32_t iosf_dunit_read(int reg) |
| { |
| return iosf_read_port(IOSF_READ(SYSMEMC), reg); |
| } |
| |
| uint32_t iosf_dunit_ch0_read(int reg) |
| { |
| return iosf_dunit_read(reg); |
| } |
| |
| uint32_t iosf_dunit_ch1_read(int reg) |
| { |
| uint32_t cr = IOSF_OPCODE(IOSF_OP_READ_SYSMEMC) | |
| IOSF_PORT(IOSF_PORT_DUNIT_CH1); |
| return iosf_read_port(cr, reg); |
| } |
| |
| void iosf_dunit_write(int reg, uint32_t val) |
| { |
| iosf_write_port(IOSF_WRITE(SYSMEMC), reg, val); |
| } |
| |
| uint32_t iosf_punit_read(int reg) |
| { |
| return iosf_read_port(IOSF_READ(PMC), reg); |
| } |
| |
| void iosf_punit_write(int reg, uint32_t val) |
| { |
| iosf_write_port(IOSF_WRITE(PMC), reg, val); |
| } |
| |
| uint32_t iosf_usbphy_read(int reg) |
| { |
| return iosf_read_port(IOSF_READ(USBPHY), reg); |
| } |
| |
| void iosf_usbphy_write(int reg, uint32_t val) |
| { |
| return iosf_write_port(IOSF_WRITE(USBPHY), reg, val); |
| } |
| |
| uint32_t iosf_ushphy_read(int reg) |
| { |
| return iosf_read_port(IOSF_READ(USHPHY), reg); |
| } |
| |
| void iosf_ushphy_write(int reg, uint32_t val) |
| { |
| return iosf_write_port(IOSF_WRITE(USHPHY), reg, val); |
| } |
| |
| uint32_t iosf_lpss_read(int reg) |
| { |
| return iosf_read_port(IOSF_READ(LPSS), reg); |
| } |
| |
| void iosf_lpss_write(int reg, uint32_t val) |
| { |
| return iosf_write_port(IOSF_WRITE(LPSS), reg, val); |
| } |
| |
| uint32_t iosf_ccu_read(int reg) |
| { |
| return iosf_read_port(IOSF_READ(CCU), reg); |
| } |
| |
| void iosf_ccu_write(int reg, uint32_t val) |
| { |
| return iosf_write_port(IOSF_WRITE(CCU), reg, val); |
| } |
| |
| uint32_t iosf_score_read(int reg) |
| { |
| return iosf_read_port(IOSF_READ(SCORE), reg); |
| } |
| |
| void iosf_score_write(int reg, uint32_t val) |
| { |
| return iosf_write_port(IOSF_WRITE(SCORE), reg, val); |
| } |
| |
| uint32_t iosf_scc_read(int reg) |
| { |
| return iosf_read_port(IOSF_READ(SCC), reg); |
| } |
| |
| void iosf_scc_write(int reg, uint32_t val) |
| { |
| return iosf_write_port(IOSF_WRITE(SCC), reg, val); |
| } |
| |
| uint32_t iosf_aunit_read(int reg) |
| { |
| return iosf_read_port(IOSF_READ(AUNIT), reg); |
| } |
| |
| void iosf_aunit_write(int reg, uint32_t val) |
| { |
| return iosf_write_port(IOSF_WRITE(AUNIT), reg, val); |
| } |
| |
| uint32_t iosf_cpu_bus_read(int reg) |
| { |
| return iosf_read_port(IOSF_READ(CPU_BUS), reg); |
| } |
| |
| void iosf_cpu_bus_write(int reg, uint32_t val) |
| { |
| return iosf_write_port(IOSF_WRITE(CPU_BUS), reg, val); |
| } |
| |
| uint32_t iosf_sec_read(int reg) |
| { |
| return iosf_read_port(IOSF_READ(SEC), reg); |
| } |
| |
| void iosf_sec_write(int reg, uint32_t val) |
| { |
| return iosf_write_port(IOSF_WRITE(SEC), reg, val); |
| } |
| |
| uint32_t iosf_port45_read(int reg) |
| { |
| return iosf_read_port(IOSF_READ(0x45), reg); |
| } |
| |
| void iosf_port45_write(int reg, uint32_t val) |
| { |
| return iosf_write_port(IOSF_WRITE(0x45), reg, val); |
| } |
| |
| uint32_t iosf_port46_read(int reg) |
| { |
| return iosf_read_port(IOSF_READ(0x46), reg); |
| } |
| |
| void iosf_port46_write(int reg, uint32_t val) |
| { |
| return iosf_write_port(IOSF_WRITE(0x46), reg, val); |
| } |
| |
| uint32_t iosf_port47_read(int reg) |
| { |
| return iosf_read_port(IOSF_READ(0x47), reg); |
| } |
| |
| void iosf_port47_write(int reg, uint32_t val) |
| { |
| return iosf_write_port(IOSF_WRITE(0x47), reg, val); |
| } |
| |
| uint32_t iosf_port55_read(int reg) |
| { |
| return iosf_read_port(IOSF_READ(0x55), reg); |
| } |
| |
| void iosf_port55_write(int reg, uint32_t val) |
| { |
| return iosf_write_port(IOSF_WRITE(0x55), reg, val); |
| } |
| |
| uint32_t iosf_port58_read(int reg) |
| { |
| return iosf_read_port(IOSF_READ(0x58), reg); |
| } |
| |
| void iosf_port58_write(int reg, uint32_t val) |
| { |
| return iosf_write_port(IOSF_WRITE(0x58), reg, val); |
| } |
| |
| uint32_t iosf_port59_read(int reg) |
| { |
| return iosf_read_port(IOSF_READ(0x59), reg); |
| } |
| |
| void iosf_port59_write(int reg, uint32_t val) |
| { |
| return iosf_write_port(IOSF_WRITE(0x59), reg, val); |
| } |
| |
| uint32_t iosf_port5a_read(int reg) |
| { |
| return iosf_read_port(IOSF_READ(0x5a), reg); |
| } |
| |
| void iosf_port5a_write(int reg, uint32_t val) |
| { |
| return iosf_write_port(IOSF_WRITE(0x5a), reg, val); |
| } |
| |
| uint32_t iosf_porta2_read(int reg) |
| { |
| return iosf_read_port(IOSF_READ(0xa2), reg); |
| } |
| |
| void iosf_porta2_write(int reg, uint32_t val) |
| { |
| return iosf_write_port(IOSF_WRITE(0xa2), reg, val); |
| } |
| |
| uint32_t iosf_ssus_read(int reg) |
| { |
| return iosf_read_port(IOSF_READ(SSUS), reg); |
| } |
| |
| void iosf_ssus_write(int reg, uint32_t val) |
| { |
| return iosf_write_port(IOSF_WRITE(SSUS), reg, val); |
| } |