149 lines
4.0 KiB
C
149 lines
4.0 KiB
C
/*
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* SUNXI MBUS support
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*
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* Copyright (C) 2015 AllWinnertech Ltd.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef __LINUX_SUNXI_MBUS_H
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#define __LINUX_SUNXI_MBUS_H
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#include <linux/types.h>
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/* Port ids */
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/* See SDRAM Controller Spec: DRAMC access master list */
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enum mbus_port {
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#if IS_ENABLED(CONFIG_ARCH_SUN8IW20) || IS_ENABLED(CONFIG_ARCH_SUN20IW1)
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MBUS_PORT_CPU = 0,
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MBUS_PORT_MAHB = 2,
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MBUS_PORT_DMA = 3,
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MBUS_PORT_VE = 4,
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MBUS_PORT_CE = 5,
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MBUS_PORT_TVD = 10,
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MBUS_PORT_CSI = 11,
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MBUS_PORT_G2D = 13,
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MBUS_PORT_DI = 14,
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MBUS_PORT_DE = 16,
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MBUS_PORT_IOMMU = 25,
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MBUS_PORT_DSP = 37,
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MBUS_PORT_RISCV = 39,
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MBUS_PORTS_MAX = 40,
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#elif IS_ENABLED(CONFIG_ARCH_SUN50IW9)
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MBUS_PORT_CPU = 0,
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MBUS_PORT_GPU = 1,
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MBUS_PORT_MAHB = 2,
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MBUS_PORT_DMA = 3,
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MBUS_PORT_VE0 = 4,
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MBUS_PORT_CE = 5,
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MBUS_PORT_TSC0 = 6,
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MBUS_PORT_NDFC0 = 8,
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MBUS_PORT_CSI0 = 11,
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MBUS_PORT_DI0 = 14,
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MBUS_PORT_DE300 = 16,
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MBUS_PORT_G2D_ROT = 21,
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MBUS_PORT_CSI1 = 22,
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MBUS_PORT_ISP1 = 23,
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MBUS_PORT_VE1 = 24,
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MBUS_PORT_IOMMU = 25,
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MBUS_PORT_HDMI = 39,
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MBUS_PORTS_MAX = 40,
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#else
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/* ... */
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#endif
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};
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struct device_node;
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#ifdef CONFIG_SUNXI_MBUS
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extern int mbus_port_setbwlen(enum mbus_port port, bool en);
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extern int mbus_port_setpri(enum mbus_port port, bool pri);
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extern int mbus_port_setqos(enum mbus_port port, unsigned int qos);
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extern int mbus_port_setwt(enum mbus_port port, unsigned int wt);
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extern int mbus_port_setacs(enum mbus_port port, unsigned int acs);
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extern int mbus_port_setbwl0(enum mbus_port port, unsigned int bwl0);
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extern int mbus_port_setbwl1(enum mbus_port port, unsigned int bwl1);
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extern int mbus_port_setbwl2(enum mbus_port port, unsigned int bwl2);
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extern int mbus_port_setbwl(enum mbus_port port, unsigned int bwl0,
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unsigned int bwl1, unsigned int bwl2);
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extern int mbus_set_bwlwen(bool enable);
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extern int mbus_set_bwlwsiz(unsigned int size);
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extern int mbus_port_control_by_index(enum mbus_port port, bool enable);
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extern bool mbus_probed(void);
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extern int mbus_port_setbwcu(unsigned int unit);
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#else
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static inline int mbus_port_setbwlen(enum mbus_port port, bool en)
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{
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return -ENODEV;
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}
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static inline int mbus_port_setpri(enum mbus_port port, bool pri)
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{
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return -ENODEV;
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}
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static inline int mbus_port_setqos(enum mbus_port port, unsigned int qos)
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{
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return -ENODEV;
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}
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static inline int mbus_port_setwt(enum mbus_port port, unsigned int wt)
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{
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return -ENODEV;
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}
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static inline int mbus_port_setacs(enum mbus_port port, unsigned int acs)
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{
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return -ENODEV;
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}
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static inline int mbus_port_setbwl0(enum mbus_port port, unsigned int bwl0)
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{
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return -ENODEV;
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}
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static inline int mbus_port_setbwl1(enum mbus_port port, unsigned int bwl1)
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{
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return -ENODEV;
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}
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static inline int mbus_port_setbwl2(enum mbus_port port, unsigned int bwl2)
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{
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return -ENODEV;
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}
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static inline int mbus_port_setbwl(enum mbus_port port, unsigned int bwl0,
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unsigned int bwl1, unsigned int bwl2)
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{
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return -ENODEV;
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}
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static inline int mbus_set_bwlwen(bool enable)
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{
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return -ENODEV;
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}
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static inline int mbus_set_bwlwsiz(unsigned int size)
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{
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return -ENODEV;
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}
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static inline int mbus_port_control_by_index(enum mbus_port port, bool enable)
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{
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return -ENODEV;
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}
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static inline bool mbus_probed(void)
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{
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return false;
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}
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static inline int mbus_port_setbwcu(unsigned int unit)
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{
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return -ENODEV;
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}
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#endif
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#define mbus_disable_port_by_index(dev) \
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mbus_port_control_by_index(dev, false)
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#define mbus_enable_port_by_index(dev) \
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mbus_port_control_by_index(dev, true)
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#endif
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