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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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75288c78c6
Implemented by modification of the .name field of the platform device, when PDs with the same names are to be used within different drivers, as <device_name> -> <device_name>:<function> Corresponding drivers should change the .name in struct device_driver to reflect upper of course. Added ppc_sys_device_disable/enable function set, making it easier to disable all the inexistent/not utilized platform device way pdevs. By the check of the "disabled" bit in the config field of ppc_sys_specs, disabled platform devices will be either added/removed from the bus, or simply not registered on it, depending on the time when disable/enable call asserted. The default behaviour when nothing is disabled/enabled will be "all devices are enabled", which is the same as before. Also helper platform_notify_map function added, making assignment of board-specific platform_info more consistent and generic. Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com> Signed-off-by: Marcelo Tosatti <marcelo.tosatti@cyclades.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
111 lines
3.3 KiB
C
111 lines
3.3 KiB
C
/*
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* include/asm-ppc/ppc_sys.h
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*
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* PPC system definitions and library functions
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*
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* Maintainer: Kumar Gala <galak@kernel.crashing.org>
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*
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* Copyright 2005 Freescale Semiconductor, Inc
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*/
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#ifdef __KERNEL__
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#ifndef __ASM_PPC_SYS_H
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#define __ASM_PPC_SYS_H
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#include <linux/init.h>
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#include <linux/platform_device.h>
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#include <linux/types.h>
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#if defined(CONFIG_8260)
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#include <asm/mpc8260.h>
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#elif defined(CONFIG_83xx)
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#include <asm/mpc83xx.h>
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#elif defined(CONFIG_85xx)
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#include <asm/mpc85xx.h>
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#elif defined(CONFIG_8xx)
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#include <asm/mpc8xx.h>
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#elif defined(CONFIG_PPC_MPC52xx)
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#include <asm/mpc52xx.h>
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#elif defined(CONFIG_MPC10X_BRIDGE)
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#include <asm/mpc10x.h>
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#elif defined(CONFIG_XILINX_VIRTEX)
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#include <platforms/4xx/virtex.h>
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#else
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#error "need definition of ppc_sys_devices"
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#endif
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struct ppc_sys_spec {
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/* PPC sys is matched via (ID & mask) == value, id could be
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* PVR, SVR, IMMR, * etc. */
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u32 mask;
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u32 value;
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u32 num_devices;
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char *ppc_sys_name;
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u8 config[NUM_PPC_SYS_DEVS];
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enum ppc_sys_devices *device_list;
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};
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struct platform_notify_dev_map {
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const char *bus_id;
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void (*rtn)(struct platform_device * pdev, int idx);
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};
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enum platform_device_func {
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PPC_SYS_FUNC_DUMMY = 0,
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PPC_SYS_FUNC_ETH = 1,
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PPC_SYS_FUNC_UART = 2,
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PPC_SYS_FUNC_HLDC = 3,
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PPC_SYS_FUNC_USB = 4,
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PPC_SYS_FUNC_IRDA = 5,
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};
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#define PPC_SYS_CONFIG_DISABLED 1
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/* describes all specific chips and which devices they have on them */
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extern struct ppc_sys_spec ppc_sys_specs[];
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extern struct ppc_sys_spec *cur_ppc_sys_spec;
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/* determine which specific SOC we are */
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extern void identify_ppc_sys_by_id(u32 id) __init;
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extern void identify_ppc_sys_by_name(char *name) __init;
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extern void identify_ppc_sys_by_name_and_id(char *name, u32 id) __init;
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/* describes all devices that may exist in a given family of processors */
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extern struct platform_device ppc_sys_platform_devices[];
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/* allow any platform_device fixup to occur before device is registered */
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extern int (*ppc_sys_device_fixup) (struct platform_device * pdev);
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/* Update all memory resources by paddr, call before platform_device_register */
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extern void ppc_sys_fixup_mem_resource(struct platform_device *pdev,
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phys_addr_t paddr) __init;
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/* Get platform_data pointer out of platform device, call before platform_device_register */
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extern void *ppc_sys_get_pdata(enum ppc_sys_devices dev) __init;
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/* remove a device from the system */
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extern void ppc_sys_device_remove(enum ppc_sys_devices dev);
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/* Function assignment stuff */
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void ppc_sys_device_initfunc(void);
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void ppc_sys_device_setfunc(enum ppc_sys_devices dev,
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enum platform_device_func func);
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void ppc_sys_device_set_func_all(enum platform_device_func func);
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void platform_notify_map(const struct platform_notify_dev_map *map,
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struct device *dev);
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/* Enable / disable stuff */
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void ppc_sys_device_disable(enum ppc_sys_devices dev);
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void ppc_sys_device_enable(enum ppc_sys_devices dev);
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void ppc_sys_device_enable_all(void);
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void ppc_sys_device_disable_all(void);
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#endif /* __ASM_PPC_SYS_H */
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#endif /* __KERNEL__ */
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