diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 22:20:36 (GMT) |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 22:20:36 (GMT) |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/mips/sibyte/cfe | |
download | linux-fsl-qoriq-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.xz |
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'arch/mips/sibyte/cfe')
-rw-r--r-- | arch/mips/sibyte/cfe/Makefile | 3 | ||||
-rw-r--r-- | arch/mips/sibyte/cfe/cfe_api.c | 502 | ||||
-rw-r--r-- | arch/mips/sibyte/cfe/cfe_api.h | 185 | ||||
-rw-r--r-- | arch/mips/sibyte/cfe/cfe_api_int.h | 152 | ||||
-rw-r--r-- | arch/mips/sibyte/cfe/cfe_error.h | 85 | ||||
-rw-r--r-- | arch/mips/sibyte/cfe/console.c | 80 | ||||
-rw-r--r-- | arch/mips/sibyte/cfe/setup.c | 358 | ||||
-rw-r--r-- | arch/mips/sibyte/cfe/smp.c | 92 |
8 files changed, 1457 insertions, 0 deletions
diff --git a/arch/mips/sibyte/cfe/Makefile b/arch/mips/sibyte/cfe/Makefile new file mode 100644 index 0000000..059d84a --- /dev/null +++ b/arch/mips/sibyte/cfe/Makefile @@ -0,0 +1,3 @@ +lib-y = cfe_api.o setup.o +lib-$(CONFIG_SMP) += smp.o +lib-$(CONFIG_SIBYTE_CFE_CONSOLE) += console.o diff --git a/arch/mips/sibyte/cfe/cfe_api.c b/arch/mips/sibyte/cfe/cfe_api.c new file mode 100644 index 0000000..c021360 --- /dev/null +++ b/arch/mips/sibyte/cfe/cfe_api.c @@ -0,0 +1,502 @@ +/* + * Copyright (C) 2000, 2001, 2002 Broadcom Corporation + * + * 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; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ + +/* ********************************************************************* + * + * Broadcom Common Firmware Environment (CFE) + * + * Device Function stubs File: cfe_api.c + * + * This module contains device function stubs (small routines to + * call the standard "iocb" interface entry point to CFE). + * There should be one routine here per iocb function call. + * + * Authors: Mitch Lichtenberg, Chris Demetriou + * + ********************************************************************* */ + +#include "cfe_api.h" +#include "cfe_api_int.h" + +/* Cast from a native pointer to a cfe_xptr_t and back. */ +#define XPTR_FROM_NATIVE(n) ((cfe_xptr_t) (intptr_t) (n)) +#define NATIVE_FROM_XPTR(x) ((void *) (intptr_t) (x)) + +#ifdef CFE_API_IMPL_NAMESPACE +#define cfe_iocb_dispatch(a) __cfe_iocb_dispatch(a) +#endif +int cfe_iocb_dispatch(cfe_xiocb_t * xiocb); + +#if defined(CFE_API_common) || defined(CFE_API_ALL) +/* + * Declare the dispatch function with args of "intptr_t". + * This makes sure whatever model we're compiling in + * puts the pointers in a single register. For example, + * combining -mlong64 and -mips1 or -mips2 would lead to + * trouble, since the handle and IOCB pointer will be + * passed in two registers each, and CFE expects one. + */ + +static int (*cfe_dispfunc) (intptr_t handle, intptr_t xiocb) = 0; +static cfe_xuint_t cfe_handle = 0; + +int cfe_init(cfe_xuint_t handle, cfe_xuint_t ept) +{ + cfe_dispfunc = NATIVE_FROM_XPTR(ept); + cfe_handle = handle; + return 0; +} + +int cfe_iocb_dispatch(cfe_xiocb_t * xiocb) +{ + if (!cfe_dispfunc) + return -1; + return (*cfe_dispfunc) ((intptr_t) cfe_handle, (intptr_t) xiocb); +} +#endif /* CFE_API_common || CFE_API_ALL */ + +#if defined(CFE_API_close) || defined(CFE_API_ALL) +int cfe_close(int handle) +{ + cfe_xiocb_t xiocb; + + xiocb.xiocb_fcode = CFE_CMD_DEV_CLOSE; + xiocb.xiocb_status = 0; + xiocb.xiocb_handle = handle; + xiocb.xiocb_flags = 0; + xiocb.xiocb_psize = 0; + + cfe_iocb_dispatch(&xiocb); + + return xiocb.xiocb_status; + +} +#endif /* CFE_API_close || CFE_API_ALL */ + +#if defined(CFE_API_cpu_start) || defined(CFE_API_ALL) +int cfe_cpu_start(int cpu, void (*fn) (void), long sp, long gp, long a1) +{ + cfe_xiocb_t xiocb; + + xiocb.xiocb_fcode = CFE_CMD_FW_CPUCTL; + xiocb.xiocb_status = 0; + xiocb.xiocb_handle = 0; + xiocb.xiocb_flags = 0; + xiocb.xiocb_psize = sizeof(xiocb_cpuctl_t); + xiocb.plist.xiocb_cpuctl.cpu_number = cpu; + xiocb.plist.xiocb_cpuctl.cpu_command = CFE_CPU_CMD_START; + xiocb.plist.xiocb_cpuctl.gp_val = gp; + xiocb.plist.xiocb_cpuctl.sp_val = sp; + xiocb.plist.xiocb_cpuctl.a1_val = a1; + xiocb.plist.xiocb_cpuctl.start_addr = (long) fn; + + cfe_iocb_dispatch(&xiocb); + + return xiocb.xiocb_status; +} +#endif /* CFE_API_cpu_start || CFE_API_ALL */ + +#if defined(CFE_API_cpu_stop) || defined(CFE_API_ALL) +int cfe_cpu_stop(int cpu) +{ + cfe_xiocb_t xiocb; + + xiocb.xiocb_fcode = CFE_CMD_FW_CPUCTL; + xiocb.xiocb_status = 0; + xiocb.xiocb_handle = 0; + xiocb.xiocb_flags = 0; + xiocb.xiocb_psize = sizeof(xiocb_cpuctl_t); + xiocb.plist.xiocb_cpuctl.cpu_number = cpu; + xiocb.plist.xiocb_cpuctl.cpu_command = CFE_CPU_CMD_STOP; + + cfe_iocb_dispatch(&xiocb); + + return xiocb.xiocb_status; +} +#endif /* CFE_API_cpu_stop || CFE_API_ALL */ + +#if defined(CFE_API_enumenv) || defined(CFE_API_ALL) +int cfe_enumenv(int idx, char *name, int namelen, char *val, int vallen) +{ + cfe_xiocb_t xiocb; + + xiocb.xiocb_fcode = CFE_CMD_ENV_SET; + xiocb.xiocb_status = 0; + xiocb.xiocb_handle = 0; + xiocb.xiocb_flags = 0; + xiocb.xiocb_psize = sizeof(xiocb_envbuf_t); + xiocb.plist.xiocb_envbuf.enum_idx = idx; + xiocb.plist.xiocb_envbuf.name_ptr = XPTR_FROM_NATIVE(name); + xiocb.plist.xiocb_envbuf.name_length = namelen; + xiocb.plist.xiocb_envbuf.val_ptr = XPTR_FROM_NATIVE(val); + xiocb.plist.xiocb_envbuf.val_length = vallen; + + cfe_iocb_dispatch(&xiocb); + + return xiocb.xiocb_status; +} +#endif /* CFE_API_enumenv || CFE_API_ALL */ + +#if defined(CFE_API_enummem) || defined(CFE_API_ALL) +int +cfe_enummem(int idx, int flags, cfe_xuint_t * start, cfe_xuint_t * length, + cfe_xuint_t * type) +{ + cfe_xiocb_t xiocb; + + xiocb.xiocb_fcode = CFE_CMD_FW_MEMENUM; + xiocb.xiocb_status = 0; + xiocb.xiocb_handle = 0; + xiocb.xiocb_flags = flags; + xiocb.xiocb_psize = sizeof(xiocb_meminfo_t); + xiocb.plist.xiocb_meminfo.mi_idx = idx; + + cfe_iocb_dispatch(&xiocb); + + if (xiocb.xiocb_status < 0) + return xiocb.xiocb_status; + + *start = xiocb.plist.xiocb_meminfo.mi_addr; + *length = xiocb.plist.xiocb_meminfo.mi_size; + *type = xiocb.plist.xiocb_meminfo.mi_type; + + return 0; +} +#endif /* CFE_API_enummem || CFE_API_ALL */ + +#if defined(CFE_API_exit) || defined(CFE_API_ALL) +int cfe_exit(int warm, int status) +{ + cfe_xiocb_t xiocb; + + xiocb.xiocb_fcode = CFE_CMD_FW_RESTART; + xiocb.xiocb_status = 0; + xiocb.xiocb_handle = 0; + xiocb.xiocb_flags = warm ? CFE_FLG_WARMSTART : 0; + xiocb.xiocb_psize = sizeof(xiocb_exitstat_t); + xiocb.plist.xiocb_exitstat.status = status; + + cfe_iocb_dispatch(&xiocb); + + return xiocb.xiocb_status; +} +#endif /* CFE_API_exit || CFE_API_ALL */ + +#if defined(CFE_API_flushcache) || defined(CFE_API_ALL) +int cfe_flushcache(int flg) +{ + cfe_xiocb_t xiocb; + + xiocb.xiocb_fcode = CFE_CMD_FW_FLUSHCACHE; + xiocb.xiocb_status = 0; + xiocb.xiocb_handle = 0; + xiocb.xiocb_flags = flg; + xiocb.xiocb_psize = 0; + + cfe_iocb_dispatch(&xiocb); + + return xiocb.xiocb_status; +} +#endif /* CFE_API_flushcache || CFE_API_ALL */ + +#if defined(CFE_API_getdevinfo) || defined(CFE_API_ALL) +int cfe_getdevinfo(char *name) +{ + cfe_xiocb_t xiocb; + + xiocb.xiocb_fcode = CFE_CMD_DEV_GETINFO; + xiocb.xiocb_status = 0; + xiocb.xiocb_handle = 0; + xiocb.xiocb_flags = 0; + xiocb.xiocb_psize = sizeof(xiocb_buffer_t); + xiocb.plist.xiocb_buffer.buf_offset = 0; + xiocb.plist.xiocb_buffer.buf_ptr = XPTR_FROM_NATIVE(name); + xiocb.plist.xiocb_buffer.buf_length = cfe_strlen(name); + + cfe_iocb_dispatch(&xiocb); + + if (xiocb.xiocb_status < 0) + return xiocb.xiocb_status; + return xiocb.plist.xiocb_buffer.buf_devflags; +} +#endif /* CFE_API_getdevinfo || CFE_API_ALL */ + +#if defined(CFE_API_getenv) || defined(CFE_API_ALL) +int cfe_getenv(char *name, char *dest, int destlen) +{ + cfe_xiocb_t xiocb; + + *dest = 0; + + xiocb.xiocb_fcode = CFE_CMD_ENV_GET; + xiocb.xiocb_status = 0; + xiocb.xiocb_handle = 0; + xiocb.xiocb_flags = 0; + xiocb.xiocb_psize = sizeof(xiocb_envbuf_t); + xiocb.plist.xiocb_envbuf.enum_idx = 0; + xiocb.plist.xiocb_envbuf.name_ptr = XPTR_FROM_NATIVE(name); + xiocb.plist.xiocb_envbuf.name_length = cfe_strlen(name); + xiocb.plist.xiocb_envbuf.val_ptr = XPTR_FROM_NATIVE(dest); + xiocb.plist.xiocb_envbuf.val_length = destlen; + + cfe_iocb_dispatch(&xiocb); + + return xiocb.xiocb_status; +} +#endif /* CFE_API_getenv || CFE_API_ALL */ + +#if defined(CFE_API_getfwinfo) || defined(CFE_API_ALL) +int cfe_getfwinfo(cfe_fwinfo_t * info) +{ + cfe_xiocb_t xiocb; + + xiocb.xiocb_fcode = CFE_CMD_FW_GETINFO; + xiocb.xiocb_status = 0; + xiocb.xiocb_handle = 0; + xiocb.xiocb_flags = 0; + xiocb.xiocb_psize = sizeof(xiocb_fwinfo_t); + + cfe_iocb_dispatch(&xiocb); + + if (xiocb.xiocb_status < 0) + return xiocb.xiocb_status; + + info->fwi_version = xiocb.plist.xiocb_fwinfo.fwi_version; + info->fwi_totalmem = xiocb.plist.xiocb_fwinfo.fwi_totalmem; + info->fwi_flags = xiocb.plist.xiocb_fwinfo.fwi_flags; + info->fwi_boardid = xiocb.plist.xiocb_fwinfo.fwi_boardid; + info->fwi_bootarea_va = xiocb.plist.xiocb_fwinfo.fwi_bootarea_va; + info->fwi_bootarea_pa = xiocb.plist.xiocb_fwinfo.fwi_bootarea_pa; + info->fwi_bootarea_size = + xiocb.plist.xiocb_fwinfo.fwi_bootarea_size; +#if 0 + info->fwi_reserved1 = xiocb.plist.xiocb_fwinfo.fwi_reserved1; + info->fwi_reserved2 = xiocb.plist.xiocb_fwinfo.fwi_reserved2; + info->fwi_reserved3 = xiocb.plist.xiocb_fwinfo.fwi_reserved3; +#endif + + return 0; +} +#endif /* CFE_API_getfwinfo || CFE_API_ALL */ + +#if defined(CFE_API_getstdhandle) || defined(CFE_API_ALL) +int cfe_getstdhandle(int flg) +{ + cfe_xiocb_t xiocb; + + xiocb.xiocb_fcode = CFE_CMD_DEV_GETHANDLE; + xiocb.xiocb_status = 0; + xiocb.xiocb_handle = 0; + xiocb.xiocb_flags = flg; + xiocb.xiocb_psize = 0; + + cfe_iocb_dispatch(&xiocb); + + if (xiocb.xiocb_status < 0) + return xiocb.xiocb_status; + return xiocb.xiocb_handle; +} +#endif /* CFE_API_getstdhandle || CFE_API_ALL */ + +#if defined(CFE_API_getticks) || defined(CFE_API_ALL) +int64_t +#ifdef CFE_API_IMPL_NAMESPACE +__cfe_getticks(void) +#else +cfe_getticks(void) +#endif +{ + cfe_xiocb_t xiocb; + + xiocb.xiocb_fcode = CFE_CMD_FW_GETTIME; + xiocb.xiocb_status = 0; + xiocb.xiocb_handle = 0; + xiocb.xiocb_flags = 0; + xiocb.xiocb_psize = sizeof(xiocb_time_t); + xiocb.plist.xiocb_time.ticks = 0; + + cfe_iocb_dispatch(&xiocb); + + return xiocb.plist.xiocb_time.ticks; + +} +#endif /* CFE_API_getticks || CFE_API_ALL */ + +#if defined(CFE_API_inpstat) || defined(CFE_API_ALL) +int cfe_inpstat(int handle) +{ + cfe_xiocb_t xiocb; + + xiocb.xiocb_fcode = CFE_CMD_DEV_INPSTAT; + xiocb.xiocb_status = 0; + xiocb.xiocb_handle = handle; + xiocb.xiocb_flags = 0; + xiocb.xiocb_psize = sizeof(xiocb_inpstat_t); + xiocb.plist.xiocb_inpstat.inp_status = 0; + + cfe_iocb_dispatch(&xiocb); + + if (xiocb.xiocb_status < 0) + return xiocb.xiocb_status; + return xiocb.plist.xiocb_inpstat.inp_status; +} +#endif /* CFE_API_inpstat || CFE_API_ALL */ + +#if defined(CFE_API_ioctl) || defined(CFE_API_ALL) +int +cfe_ioctl(int handle, unsigned int ioctlnum, unsigned char *buffer, + int length, int *retlen, cfe_xuint_t offset) +{ + cfe_xiocb_t xiocb; + + xiocb.xiocb_fcode = CFE_CMD_DEV_IOCTL; + xiocb.xiocb_status = 0; + xiocb.xiocb_handle = handle; + xiocb.xiocb_flags = 0; + xiocb.xiocb_psize = sizeof(xiocb_buffer_t); + xiocb.plist.xiocb_buffer.buf_offset = offset; + xiocb.plist.xiocb_buffer.buf_ioctlcmd = ioctlnum; + xiocb.plist.xiocb_buffer.buf_ptr = XPTR_FROM_NATIVE(buffer); + xiocb.plist.xiocb_buffer.buf_length = length; + + cfe_iocb_dispatch(&xiocb); + + if (retlen) + *retlen = xiocb.plist.xiocb_buffer.buf_retlen; + return xiocb.xiocb_status; +} +#endif /* CFE_API_ioctl || CFE_API_ALL */ + +#if defined(CFE_API_open) || defined(CFE_API_ALL) +int cfe_open(char *name) +{ + cfe_xiocb_t xiocb; + + xiocb.xiocb_fcode = CFE_CMD_DEV_OPEN; + xiocb.xiocb_status = 0; + xiocb.xiocb_handle = 0; + xiocb.xiocb_flags = 0; + xiocb.xiocb_psize = sizeof(xiocb_buffer_t); + xiocb.plist.xiocb_buffer.buf_offset = 0; + xiocb.plist.xiocb_buffer.buf_ptr = XPTR_FROM_NATIVE(name); + xiocb.plist.xiocb_buffer.buf_length = cfe_strlen(name); + + cfe_iocb_dispatch(&xiocb); + + if (xiocb.xiocb_status < 0) + return xiocb.xiocb_status; + return xiocb.xiocb_handle; +} +#endif /* CFE_API_open || CFE_API_ALL */ + +#if defined(CFE_API_read) || defined(CFE_API_ALL) +int cfe_read(int handle, unsigned char *buffer, int length) +{ + return cfe_readblk(handle, 0, buffer, length); +} +#endif /* CFE_API_read || CFE_API_ALL */ + +#if defined(CFE_API_readblk) || defined(CFE_API_ALL) +int +cfe_readblk(int handle, cfe_xint_t offset, unsigned char *buffer, + int length) +{ + cfe_xiocb_t xiocb; + + xiocb.xiocb_fcode = CFE_CMD_DEV_READ; + xiocb.xiocb_status = 0; + xiocb.xiocb_handle = handle; + xiocb.xiocb_flags = 0; + xiocb.xiocb_psize = sizeof(xiocb_buffer_t); + xiocb.plist.xiocb_buffer.buf_offset = offset; + xiocb.plist.xiocb_buffer.buf_ptr = XPTR_FROM_NATIVE(buffer); + xiocb.plist.xiocb_buffer.buf_length = length; + + cfe_iocb_dispatch(&xiocb); + + if (xiocb.xiocb_status < 0) + return xiocb.xiocb_status; + return xiocb.plist.xiocb_buffer.buf_retlen; +} +#endif /* CFE_API_readblk || CFE_API_ALL */ + +#if defined(CFE_API_setenv) || defined(CFE_API_ALL) +int cfe_setenv(char *name, char *val) +{ + cfe_xiocb_t xiocb; + + xiocb.xiocb_fcode = CFE_CMD_ENV_SET; + xiocb.xiocb_status = 0; + xiocb.xiocb_handle = 0; + xiocb.xiocb_flags = 0; + xiocb.xiocb_psize = sizeof(xiocb_envbuf_t); + xiocb.plist.xiocb_envbuf.enum_idx = 0; + xiocb.plist.xiocb_envbuf.name_ptr = XPTR_FROM_NATIVE(name); + xiocb.plist.xiocb_envbuf.name_length = cfe_strlen(name); + xiocb.plist.xiocb_envbuf.val_ptr = XPTR_FROM_NATIVE(val); + xiocb.plist.xiocb_envbuf.val_length = cfe_strlen(val); + + cfe_iocb_dispatch(&xiocb); + + return xiocb.xiocb_status; +} +#endif /* CFE_API_setenv || CFE_API_ALL */ + +#if (defined(CFE_API_strlen) || defined(CFE_API_ALL)) \ + && !defined(CFE_API_STRLEN_CUSTOM) +int cfe_strlen(char *name) +{ + int count = 0; + + while (*name++) + count++; + + return count; +} +#endif /* CFE_API_strlen || CFE_API_ALL */ + +#if defined(CFE_API_write) || defined(CFE_API_ALL) +int cfe_write(int handle, unsigned char *buffer, int length) +{ + return cfe_writeblk(handle, 0, buffer, length); +} +#endif /* CFE_API_write || CFE_API_ALL */ + +#if defined(CFE_API_writeblk) || defined(CFE_API_ALL) +int +cfe_writeblk(int handle, cfe_xint_t offset, unsigned char *buffer, + int length) +{ + cfe_xiocb_t xiocb; + + xiocb.xiocb_fcode = CFE_CMD_DEV_WRITE; + xiocb.xiocb_status = 0; + xiocb.xiocb_handle = handle; + xiocb.xiocb_flags = 0; + xiocb.xiocb_psize = sizeof(xiocb_buffer_t); + xiocb.plist.xiocb_buffer.buf_offset = offset; + xiocb.plist.xiocb_buffer.buf_ptr = XPTR_FROM_NATIVE(buffer); + xiocb.plist.xiocb_buffer.buf_length = length; + + cfe_iocb_dispatch(&xiocb); + + if (xiocb.xiocb_status < 0) + return xiocb.xiocb_status; + return xiocb.plist.xiocb_buffer.buf_retlen; +} +#endif /* CFE_API_writeblk || CFE_API_ALL */ diff --git a/arch/mips/sibyte/cfe/cfe_api.h b/arch/mips/sibyte/cfe/cfe_api.h new file mode 100644 index 0000000..d8230cc --- /dev/null +++ b/arch/mips/sibyte/cfe/cfe_api.h @@ -0,0 +1,185 @@ +/* + * Copyright (C) 2000, 2001, 2002 Broadcom Corporation + * + * 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; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ + +/* ********************************************************************* + * + * Broadcom Common Firmware Environment (CFE) + * + * Device function prototypes File: cfe_api.h + * + * This file contains declarations for doing callbacks to + * cfe from an application. It should be the only header + * needed by the application to use this library + * + * Authors: Mitch Lichtenberg, Chris Demetriou + * + ********************************************************************* */ + +#ifndef CFE_API_H +#define CFE_API_H + +/* + * Apply customizations here for different OSes. These need to: + * * typedef uint64_t, int64_t, intptr_t, uintptr_t. + * * define cfe_strlen() if use of an existing function is desired. + * * define CFE_API_IMPL_NAMESPACE if API functions are to use + * names in the implementation namespace. + * Also, optionally, if the build environment does not do so automatically, + * CFE_API_* can be defined here as desired. + */ +/* Begin customization. */ +#include <linux/types.h> +#include <linux/string.h> + +typedef long intptr_t; + +#define cfe_strlen strlen + +#define CFE_API_ALL +#define CFE_API_STRLEN_CUSTOM +/* End customization. */ + + +/* ********************************************************************* + * Constants + ********************************************************************* */ + +/* Seal indicating CFE's presence, passed to user program. */ +#define CFE_EPTSEAL 0x43464531 + +#define CFE_MI_RESERVED 0 /* memory is reserved, do not use */ +#define CFE_MI_AVAILABLE 1 /* memory is available */ + +#define CFE_FLG_WARMSTART 0x00000001 +#define CFE_FLG_FULL_ARENA 0x00000001 +#define CFE_FLG_ENV_PERMANENT 0x00000001 + +#define CFE_CPU_CMD_START 1 +#define CFE_CPU_CMD_STOP 0 + +#define CFE_STDHANDLE_CONSOLE 0 + +#define CFE_DEV_NETWORK 1 +#define CFE_DEV_DISK 2 +#define CFE_DEV_FLASH 3 +#define CFE_DEV_SERIAL 4 +#define CFE_DEV_CPU 5 +#define CFE_DEV_NVRAM 6 +#define CFE_DEV_CLOCK 7 +#define CFE_DEV_OTHER 8 +#define CFE_DEV_MASK 0x0F + +#define CFE_CACHE_FLUSH_D 1 +#define CFE_CACHE_INVAL_I 2 +#define CFE_CACHE_INVAL_D 4 +#define CFE_CACHE_INVAL_L2 8 + +#define CFE_FWI_64BIT 0x00000001 +#define CFE_FWI_32BIT 0x00000002 +#define CFE_FWI_RELOC 0x00000004 +#define CFE_FWI_UNCACHED 0x00000008 +#define CFE_FWI_MULTICPU 0x00000010 +#define CFE_FWI_FUNCSIM 0x00000020 +#define CFE_FWI_RTLSIM 0x00000040 + +typedef struct { + int64_t fwi_version; /* major, minor, eco version */ + int64_t fwi_totalmem; /* total installed mem */ + int64_t fwi_flags; /* various flags */ + int64_t fwi_boardid; /* board ID */ + int64_t fwi_bootarea_va; /* VA of boot area */ + int64_t fwi_bootarea_pa; /* PA of boot area */ + int64_t fwi_bootarea_size; /* size of boot area */ +} cfe_fwinfo_t; + + +/* + * cfe_strlen is handled specially: If already defined, it has been + * overridden in this environment with a standard strlen-like function. + */ +#ifdef cfe_strlen +# define CFE_API_STRLEN_CUSTOM +#else +# ifdef CFE_API_IMPL_NAMESPACE +# define cfe_strlen(a) __cfe_strlen(a) +# endif +int cfe_strlen(char *name); +#endif + +/* + * Defines and prototypes for functions which take no arguments. + */ +#ifdef CFE_API_IMPL_NAMESPACE +int64_t __cfe_getticks(void); +#define cfe_getticks() __cfe_getticks() +#else +int64_t cfe_getticks(void); +#endif + +/* + * Defines and prototypes for the rest of the functions. + */ +#ifdef CFE_API_IMPL_NAMESPACE +#define cfe_close(a) __cfe_close(a) +#define cfe_cpu_start(a,b,c,d,e) __cfe_cpu_start(a,b,c,d,e) +#define cfe_cpu_stop(a) __cfe_cpu_stop(a) +#define cfe_enumenv(a,b,d,e,f) __cfe_enumenv(a,b,d,e,f) +#define cfe_enummem(a,b,c,d,e) __cfe_enummem(a,b,c,d,e) +#define cfe_exit(a,b) __cfe_exit(a,b) +#define cfe_flushcache(a) __cfe_cacheflush(a) +#define cfe_getdevinfo(a) __cfe_getdevinfo(a) +#define cfe_getenv(a,b,c) __cfe_getenv(a,b,c) +#define cfe_getfwinfo(a) __cfe_getfwinfo(a) +#define cfe_getstdhandle(a) __cfe_getstdhandle(a) +#define cfe_init(a,b) __cfe_init(a,b) +#define cfe_inpstat(a) __cfe_inpstat(a) +#define cfe_ioctl(a,b,c,d,e,f) __cfe_ioctl(a,b,c,d,e,f) +#define cfe_open(a) __cfe_open(a) +#define cfe_read(a,b,c) __cfe_read(a,b,c) +#define cfe_readblk(a,b,c,d) __cfe_readblk(a,b,c,d) +#define cfe_setenv(a,b) __cfe_setenv(a,b) +#define cfe_write(a,b,c) __cfe_write(a,b,c) +#define cfe_writeblk(a,b,c,d) __cfe_writeblk(a,b,c,d) +#endif /* CFE_API_IMPL_NAMESPACE */ + +int cfe_close(int handle); +int cfe_cpu_start(int cpu, void (*fn) (void), long sp, long gp, long a1); +int cfe_cpu_stop(int cpu); +int cfe_enumenv(int idx, char *name, int namelen, char *val, int vallen); +int cfe_enummem(int idx, int flags, uint64_t * start, uint64_t * length, + uint64_t * type); +int cfe_exit(int warm, int status); +int cfe_flushcache(int flg); +int cfe_getdevinfo(char *name); +int cfe_getenv(char *name, char *dest, int destlen); +int cfe_getfwinfo(cfe_fwinfo_t * info); +int cfe_getstdhandle(int flg); +int cfe_init(uint64_t handle, uint64_t ept); +int cfe_inpstat(int handle); +int cfe_ioctl(int handle, unsigned int ioctlnum, unsigned char *buffer, + int length, int *retlen, uint64_t offset); +int cfe_open(char *name); +int cfe_read(int handle, unsigned char *buffer, int length); +int cfe_readblk(int handle, int64_t offset, unsigned char *buffer, + int length); +int cfe_setenv(char *name, char *val); +int cfe_write(int handle, unsigned char *buffer, int length); +int cfe_writeblk(int handle, int64_t offset, unsigned char *buffer, + int length); + +#endif /* CFE_API_H */ diff --git a/arch/mips/sibyte/cfe/cfe_api_int.h b/arch/mips/sibyte/cfe/cfe_api_int.h new file mode 100644 index 0000000..f7e5a64 --- /dev/null +++ b/arch/mips/sibyte/cfe/cfe_api_int.h @@ -0,0 +1,152 @@ +/* + * Copyright (C) 2000, 2001, 2002 Broadcom Corporation + * + * 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; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ + +/* ********************************************************************* + * + * Broadcom Common Firmware Environment (CFE) + * + * Device function prototypes File: cfe_api_int.h + * + * This header defines all internal types and macros for the + * library. This is stuff that's not exported to an app + * using the library. + * + * Authors: Mitch Lichtenberg, Chris Demetriou + * + ********************************************************************* */ + +#ifndef CFE_API_INT_H +#define CFE_API_INT_H + +/* ********************************************************************* + * Constants + ********************************************************************* */ + +#define CFE_CMD_FW_GETINFO 0 +#define CFE_CMD_FW_RESTART 1 +#define CFE_CMD_FW_BOOT 2 +#define CFE_CMD_FW_CPUCTL 3 +#define CFE_CMD_FW_GETTIME 4 +#define CFE_CMD_FW_MEMENUM 5 +#define CFE_CMD_FW_FLUSHCACHE 6 + +#define CFE_CMD_DEV_GETHANDLE 9 +#define CFE_CMD_DEV_ENUM 10 +#define CFE_CMD_DEV_OPEN 11 +#define CFE_CMD_DEV_INPSTAT 12 +#define CFE_CMD_DEV_READ 13 +#define CFE_CMD_DEV_WRITE 14 +#define CFE_CMD_DEV_IOCTL 15 +#define CFE_CMD_DEV_CLOSE 16 +#define CFE_CMD_DEV_GETINFO 17 + +#define CFE_CMD_ENV_ENUM 20 +#define CFE_CMD_ENV_GET 22 +#define CFE_CMD_ENV_SET 23 +#define CFE_CMD_ENV_DEL 24 + +#define CFE_CMD_MAX 32 + +#define CFE_CMD_VENDOR_USE 0x8000 /* codes above this are for customer use */ + +/* ********************************************************************* + * Structures + ********************************************************************* */ + +typedef uint64_t cfe_xuint_t; +typedef int64_t cfe_xint_t; +typedef int64_t cfe_xptr_t; + +typedef struct xiocb_buffer_s { + cfe_xuint_t buf_offset; /* offset on device (bytes) */ + cfe_xptr_t buf_ptr; /* pointer to a buffer */ + cfe_xuint_t buf_length; /* length of this buffer */ + cfe_xuint_t buf_retlen; /* returned length (for read ops) */ + cfe_xuint_t buf_ioctlcmd; /* IOCTL command (used only for IOCTLs) */ +} xiocb_buffer_t; + +#define buf_devflags buf_ioctlcmd /* returned device info flags */ + +typedef struct xiocb_inpstat_s { + cfe_xuint_t inp_status; /* 1 means input available */ +} xiocb_inpstat_t; + +typedef struct xiocb_envbuf_s { + cfe_xint_t enum_idx; /* 0-based enumeration index */ + cfe_xptr_t name_ptr; /* name string buffer */ + cfe_xint_t name_length; /* size of name buffer */ + cfe_xptr_t val_ptr; /* value string buffer */ + cfe_xint_t val_length; /* size of value string buffer */ +} xiocb_envbuf_t; + +typedef struct xiocb_cpuctl_s { + cfe_xuint_t cpu_number; /* cpu number to control */ + cfe_xuint_t cpu_command; /* command to issue to CPU */ + cfe_xuint_t start_addr; /* CPU start address */ + cfe_xuint_t gp_val; /* starting GP value */ + cfe_xuint_t sp_val; /* starting SP value */ + cfe_xuint_t a1_val; /* starting A1 value */ +} xiocb_cpuctl_t; + +typedef struct xiocb_time_s { + cfe_xint_t ticks; /* current time in ticks */ +} xiocb_time_t; + +typedef struct xiocb_exitstat_s { + cfe_xint_t status; +} xiocb_exitstat_t; + +typedef struct xiocb_meminfo_s { + cfe_xint_t mi_idx; /* 0-based enumeration index */ + cfe_xint_t mi_type; /* type of memory block */ + cfe_xuint_t mi_addr; /* physical start address */ + cfe_xuint_t mi_size; /* block size */ +} xiocb_meminfo_t; + +typedef struct xiocb_fwinfo_s { + cfe_xint_t fwi_version; /* major, minor, eco version */ + cfe_xint_t fwi_totalmem; /* total installed mem */ + cfe_xint_t fwi_flags; /* various flags */ + cfe_xint_t fwi_boardid; /* board ID */ + cfe_xint_t fwi_bootarea_va; /* VA of boot area */ + cfe_xint_t fwi_bootarea_pa; /* PA of boot area */ + cfe_xint_t fwi_bootarea_size; /* size of boot area */ + cfe_xint_t fwi_reserved1; + cfe_xint_t fwi_reserved2; + cfe_xint_t fwi_reserved3; +} xiocb_fwinfo_t; + +typedef struct cfe_xiocb_s { + cfe_xuint_t xiocb_fcode; /* IOCB function code */ + cfe_xint_t xiocb_status; /* return status */ + cfe_xint_t xiocb_handle; /* file/device handle */ + cfe_xuint_t xiocb_flags; /* flags for this IOCB */ + cfe_xuint_t xiocb_psize; /* size of parameter list */ + union { + xiocb_buffer_t xiocb_buffer; /* buffer parameters */ + xiocb_inpstat_t xiocb_inpstat; /* input status parameters */ + xiocb_envbuf_t xiocb_envbuf; /* environment function parameters */ + xiocb_cpuctl_t xiocb_cpuctl; /* CPU control parameters */ + xiocb_time_t xiocb_time; /* timer parameters */ + xiocb_meminfo_t xiocb_meminfo; /* memory arena info parameters */ + xiocb_fwinfo_t xiocb_fwinfo; /* firmware information */ + xiocb_exitstat_t xiocb_exitstat; /* Exit Status */ + } plist; +} cfe_xiocb_t; + +#endif /* CFE_API_INT_H */ diff --git a/arch/mips/sibyte/cfe/cfe_error.h b/arch/mips/sibyte/cfe/cfe_error.h new file mode 100644 index 0000000..77eb493 --- /dev/null +++ b/arch/mips/sibyte/cfe/cfe_error.h @@ -0,0 +1,85 @@ +/* + * Copyright (C) 2000, 2001, 2002 Broadcom Corporation + * + * 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; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ + +/* ********************************************************************* + * + * Broadcom Common Firmware Environment (CFE) + * + * Error codes File: cfe_error.h + * + * CFE's global error code list is here. + * + * Author: Mitch Lichtenberg + * + ********************************************************************* */ + + +#define CFE_OK 0 +#define CFE_ERR -1 /* generic error */ +#define CFE_ERR_INV_COMMAND -2 +#define CFE_ERR_EOF -3 +#define CFE_ERR_IOERR -4 +#define CFE_ERR_NOMEM -5 +#define CFE_ERR_DEVNOTFOUND -6 +#define CFE_ERR_DEVOPEN -7 +#define CFE_ERR_INV_PARAM -8 +#define CFE_ERR_ENVNOTFOUND -9 +#define CFE_ERR_ENVREADONLY -10 + +#define CFE_ERR_NOTELF -11 +#define CFE_ERR_NOT32BIT -12 +#define CFE_ERR_WRONGENDIAN -13 +#define CFE_ERR_BADELFVERS -14 +#define CFE_ERR_NOTMIPS -15 +#define CFE_ERR_BADELFFMT -16 +#define CFE_ERR_BADADDR -17 + +#define CFE_ERR_FILENOTFOUND -18 +#define CFE_ERR_UNSUPPORTED -19 + +#define CFE_ERR_HOSTUNKNOWN -20 + +#define CFE_ERR_TIMEOUT -21 + +#define CFE_ERR_PROTOCOLERR -22 + +#define CFE_ERR_NETDOWN -23 +#define CFE_ERR_NONAMESERVER -24 + +#define CFE_ERR_NOHANDLES -25 +#define CFE_ERR_ALREADYBOUND -26 + +#define CFE_ERR_CANNOTSET -27 +#define CFE_ERR_NOMORE -28 +#define CFE_ERR_BADFILESYS -29 +#define CFE_ERR_FSNOTAVAIL -30 + +#define CFE_ERR_INVBOOTBLOCK -31 +#define CFE_ERR_WRONGDEVTYPE -32 +#define CFE_ERR_BBCHECKSUM -33 +#define CFE_ERR_BOOTPROGCHKSUM -34 + +#define CFE_ERR_LDRNOTAVAIL -35 + +#define CFE_ERR_NOTREADY -36 + +#define CFE_ERR_GETMEM -37 +#define CFE_ERR_SETMEM -38 + +#define CFE_ERR_NOTCONN -39 +#define CFE_ERR_ADDRINUSE -40 diff --git a/arch/mips/sibyte/cfe/console.c b/arch/mips/sibyte/cfe/console.c new file mode 100644 index 0000000..53a5c1e --- /dev/null +++ b/arch/mips/sibyte/cfe/console.c @@ -0,0 +1,80 @@ +#include <linux/config.h> +#include <linux/init.h> +#include <linux/errno.h> +#include <linux/console.h> + +#include <asm/sibyte/board.h> + +#include "cfe_api.h" +#include "cfe_error.h" + +extern int cfe_cons_handle; + +static void cfe_console_write(struct console *cons, const char *str, + unsigned int count) +{ + int i, last, written; + + for (i=0,last=0; i<count; i++) { + if (!str[i]) + /* XXXKW can/should this ever happen? */ + return; + if (str[i] == '\n') { + do { + written = cfe_write(cfe_cons_handle, &str[last], i-last); + if (written < 0) + ; + last += written; + } while (last < i); + while (cfe_write(cfe_cons_handle, "\r", 1) <= 0) + ; + } + } + if (last != count) { + do { + written = cfe_write(cfe_cons_handle, &str[last], count-last); + if (written < 0) + ; + last += written; + } while (last < count); + } + +} + +static int cfe_console_setup(struct console *cons, char *str) +{ + char consdev[32]; + /* XXXKW think about interaction with 'console=' cmdline arg */ + /* If none of the console options are configured, the build will break. */ + if (cfe_getenv("BOOT_CONSOLE", consdev, 32) >= 0) { +#ifdef CONFIG_SIBYTE_SB1250_DUART + if (!strcmp(consdev, "uart0")) { + setleds("u0cn"); + } else if (!strcmp(consdev, "uart1")) { + setleds("u1cn"); +#endif +#ifdef CONFIG_VGA_CONSOLE + } else if (!strcmp(consdev, "pcconsole0")) { + setleds("pccn"); +#endif + } else + return -ENODEV; + } + return 0; +} + +static struct console sb1250_cfe_cons = { + .name = "cfe", + .write = cfe_console_write, + .setup = cfe_console_setup, + .flags = CON_PRINTBUFFER, + .index = -1, +}; + +static int __init sb1250_cfe_console_init(void) +{ + register_console(&sb1250_cfe_cons); + return 0; +} + +console_initcall(sb1250_cfe_console_init); diff --git a/arch/mips/sibyte/cfe/setup.c b/arch/mips/sibyte/cfe/setup.c new file mode 100644 index 0000000..d6d0364 --- /dev/null +++ b/arch/mips/sibyte/cfe/setup.c @@ -0,0 +1,358 @@ +/* + * Copyright (C) 2000, 2001, 2002, 2003 Broadcom Corporation + * + * 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; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ + +#include <linux/config.h> +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/linkage.h> +#include <linux/mm.h> +#include <linux/blkdev.h> +#include <linux/bootmem.h> +#include <linux/smp.h> + +#include <asm/bootinfo.h> +#include <asm/reboot.h> +#include <asm/sibyte/board.h> + +#include "cfe_api.h" +#include "cfe_error.h" + +/* Max ram addressable in 32-bit segments */ +#ifdef CONFIG_MIPS64 +#define MAX_RAM_SIZE (~0ULL) +#else +#ifdef CONFIG_HIGHMEM +#ifdef CONFIG_64BIT_PHYS_ADDR +#define MAX_RAM_SIZE (~0ULL) +#else +#define MAX_RAM_SIZE (0xffffffffULL) +#endif +#else +#define MAX_RAM_SIZE (0x1fffffffULL) +#endif +#endif + +#define SIBYTE_MAX_MEM_REGIONS 8 +phys_t board_mem_region_addrs[SIBYTE_MAX_MEM_REGIONS]; +phys_t board_mem_region_sizes[SIBYTE_MAX_MEM_REGIONS]; +unsigned int board_mem_region_count; + +int cfe_cons_handle; + +#ifdef CONFIG_BLK_DEV_INITRD +extern unsigned long initrd_start, initrd_end; +#endif + +#ifdef CONFIG_KGDB +extern int kgdb_port; +#endif + +static void ATTRIB_NORET cfe_linux_exit(void *arg) +{ + int warm = *(int *)arg; + + if (smp_processor_id()) { + static int reboot_smp; + + /* Don't repeat the process from another CPU */ + if (!reboot_smp) { + /* Get CPU 0 to do the cfe_exit */ + reboot_smp = 1; + smp_call_function(cfe_linux_exit, arg, 1, 0); + } + } else { + printk("Passing control back to CFE...\n"); + cfe_exit(warm, 0); + printk("cfe_exit returned??\n"); + } + while (1); +} + +static void ATTRIB_NORET cfe_linux_restart(char *command) +{ + static const int zero; + + cfe_linux_exit((void *)&zero); +} + +static void ATTRIB_NORET cfe_linux_halt(void) +{ + static const int one = 1; + + cfe_linux_exit((void *)&one); +} + +static __init void prom_meminit(void) +{ + u64 addr, size, type; /* regardless of 64BIT_PHYS_ADDR */ + int mem_flags = 0; + unsigned int idx; + int rd_flag; +#ifdef CONFIG_BLK_DEV_INITRD + unsigned long initrd_pstart; + unsigned long initrd_pend; + + initrd_pstart = CPHYSADDR(initrd_start); + initrd_pend = CPHYSADDR(initrd_end); + if (initrd_start && + ((initrd_pstart > MAX_RAM_SIZE) + || (initrd_pend > MAX_RAM_SIZE))) { + panic("initrd out of addressable memory"); + } + +#endif /* INITRD */ + + for (idx = 0; cfe_enummem(idx, mem_flags, &addr, &size, &type) != CFE_ERR_NOMORE; + idx++) { + rd_flag = 0; + if (type == CFE_MI_AVAILABLE) { + /* + * See if this block contains (any portion of) the + * ramdisk + */ +#ifdef CONFIG_BLK_DEV_INITRD + if (initrd_start) { + if ((initrd_pstart > addr) && + (initrd_pstart < (addr + size))) { + add_memory_region(addr, + initrd_pstart - addr, + BOOT_MEM_RAM); + rd_flag = 1; + } + if ((initrd_pend > addr) && + (initrd_pend < (addr + size))) { + add_memory_region(initrd_pend, + (addr + size) - initrd_pend, + BOOT_MEM_RAM); + rd_flag = 1; + } + } +#endif + if (!rd_flag) { + if (addr > MAX_RAM_SIZE) + continue; + if (addr+size > MAX_RAM_SIZE) + size = MAX_RAM_SIZE - (addr+size) + 1; + /* + * memcpy/__copy_user prefetch, which + * will cause a bus error for + * KSEG/KUSEG addrs not backed by RAM. + * Hence, reserve some padding for the + * prefetch distance. + */ + if (size > 512) + size -= 512; + add_memory_region(addr, size, BOOT_MEM_RAM); + } + board_mem_region_addrs[board_mem_region_count] = addr; + board_mem_region_sizes[board_mem_region_count] = size; + board_mem_region_count++; + if (board_mem_region_count == + SIBYTE_MAX_MEM_REGIONS) { + /* + * Too many regions. Need to configure more + */ + while(1); + } + } + } +#ifdef CONFIG_BLK_DEV_INITRD + if (initrd_start) { + add_memory_region(initrd_pstart, initrd_pend - initrd_pstart, + BOOT_MEM_RESERVED); + } +#endif +} + +#ifdef CONFIG_BLK_DEV_INITRD +static int __init initrd_setup(char *str) +{ + char rdarg[64]; + int idx; + char *tmp, *endptr; + unsigned long initrd_size; + + /* Make a copy of the initrd argument so we can smash it up here */ + for (idx = 0; idx < sizeof(rdarg)-1; idx++) { + if (!str[idx] || (str[idx] == ' ')) break; + rdarg[idx] = str[idx]; + } + + rdarg[idx] = 0; + str = rdarg; + + /* + *Initrd location comes in the form "<hex size of ramdisk in bytes>@<location in memory>" + * e.g. initrd=3abfd@80010000. This is set up by the loader. + */ + for (tmp = str; *tmp != '@'; tmp++) { + if (!*tmp) { + goto fail; + } + } + *tmp = 0; + tmp++; + if (!*tmp) { + goto fail; + } + initrd_size = simple_strtoul(str, &endptr, 16); + if (*endptr) { + *(tmp-1) = '@'; + goto fail; + } + *(tmp-1) = '@'; + initrd_start = simple_strtoul(tmp, &endptr, 16); + if (*endptr) { + goto fail; + } + initrd_end = initrd_start + initrd_size; + prom_printf("Found initrd of %lx@%lx\n", initrd_size, initrd_start); + return 1; + fail: + prom_printf("Bad initrd argument. Disabling initrd\n"); + initrd_start = 0; + initrd_end = 0; + return 1; +} + +#endif + +/* + * prom_init is called just after the cpu type is determined, from setup_arch() + */ +void __init prom_init(void) +{ + uint64_t cfe_ept, cfe_handle; + unsigned int cfe_eptseal; + int argc = fw_arg0; + char **envp = (char **) fw_arg2; + int *prom_vec = (int *) fw_arg3; +#ifdef CONFIG_KGDB + char *arg; +#endif + + _machine_restart = cfe_linux_restart; + _machine_halt = cfe_linux_halt; + _machine_power_off = cfe_linux_halt; + + /* + * Check if a loader was used; if NOT, the 4 arguments are + * what CFE gives us (handle, 0, EPT and EPTSEAL) + */ + if (argc < 0) { + cfe_handle = (uint64_t)(long)argc; + cfe_ept = (long)envp; + cfe_eptseal = (uint32_t)(unsigned long)prom_vec; + } else { + if ((int32_t)(long)prom_vec < 0) { + /* + * Old loader; all it gives us is the handle, + * so use the "known" entrypoint and assume + * the seal. + */ + cfe_handle = (uint64_t)(long)prom_vec; + cfe_ept = (uint64_t)((int32_t)0x9fc00500); + cfe_eptseal = CFE_EPTSEAL; + } else { + /* + * Newer loaders bundle the handle/ept/eptseal + * Note: prom_vec is in the loader's useg + * which is still alive in the TLB. + */ + cfe_handle = (uint64_t)((int32_t *)prom_vec)[0]; + cfe_ept = (uint64_t)((int32_t *)prom_vec)[2]; + cfe_eptseal = (unsigned int)((uint32_t *)prom_vec)[3]; + } + } + if (cfe_eptseal != CFE_EPTSEAL) { + /* too early for panic to do any good */ + prom_printf("CFE's entrypoint seal doesn't match. Spinning."); + while (1) ; + } + cfe_init(cfe_handle, cfe_ept); + /* + * Get the handle for (at least) prom_putchar, possibly for + * boot console + */ + cfe_cons_handle = cfe_getstdhandle(CFE_STDHANDLE_CONSOLE); + if (cfe_getenv("LINUX_CMDLINE", arcs_cmdline, CL_SIZE) < 0) { + if (argc < 0) { + /* + * It's OK for direct boot to not provide a + * command line + */ + strcpy(arcs_cmdline, "root=/dev/ram0 "); +#ifdef CONFIG_SIBYTE_PTSWARM + strcat(arcs_cmdline, "console=ttyS0,115200 "); +#endif + } else { + /* The loader should have set the command line */ + /* too early for panic to do any good */ + prom_printf("LINUX_CMDLINE not defined in cfe."); + while (1) ; + } + } + +#ifdef CONFIG_KGDB + if ((arg = strstr(arcs_cmdline,"kgdb=duart")) != NULL) + kgdb_port = (arg[10] == '0') ? 0 : 1; + else + kgdb_port = 1; +#endif + +#ifdef CONFIG_BLK_DEV_INITRD + { + char *ptr; + /* Need to find out early whether we've got an initrd. So scan + the list looking now */ + for (ptr = arcs_cmdline; *ptr; ptr++) { + while (*ptr == ' ') { + ptr++; + } + if (!strncmp(ptr, "initrd=", 7)) { + initrd_setup(ptr+7); + break; + } else { + while (*ptr && (*ptr != ' ')) { + ptr++; + } + } + } + } +#endif /* CONFIG_BLK_DEV_INITRD */ + + /* Not sure this is needed, but it's the safe way. */ + arcs_cmdline[CL_SIZE-1] = 0; + + mips_machgroup = MACH_GROUP_SIBYTE; + prom_meminit(); +} + +unsigned long __init prom_free_prom_memory(void) +{ + /* Not sure what I'm supposed to do here. Nothing, I think */ + return 0; +} + +void prom_putchar(char c) +{ + int ret; + + while ((ret = cfe_write(cfe_cons_handle, &c, 1)) == 0) + ; +} diff --git a/arch/mips/sibyte/cfe/smp.c b/arch/mips/sibyte/cfe/smp.c new file mode 100644 index 0000000..7339219 --- /dev/null +++ b/arch/mips/sibyte/cfe/smp.c @@ -0,0 +1,92 @@ +/* + * Copyright (C) 2000, 2001, 2002, 2003 Broadcom Corporation + * + * 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; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ + +#include <linux/init.h> +#include <linux/sched.h> +#include <linux/smp.h> +#include <asm/processor.h> + +#include "cfe_api.h" +#include "cfe_error.h" + +/* + * Use CFE to find out how many CPUs are available, setting up + * phys_cpu_present_map and the logical/physical mappings. + * XXXKW will the boot CPU ever not be physical 0? + * + * Common setup before any secondaries are started + */ +void __init prom_prepare_cpus(unsigned int max_cpus) +{ + int i, num; + + cpus_clear(phys_cpu_present_map); + cpu_set(0, phys_cpu_present_map); + __cpu_number_map[0] = 0; + __cpu_logical_map[0] = 0; + + for (i=1, num=0; i<NR_CPUS; i++) { + if (cfe_cpu_stop(i) == 0) { + cpu_set(i, phys_cpu_present_map); + __cpu_number_map[i] = ++num; + __cpu_logical_map[num] = i; + } + } + printk("Detected %i available secondary CPU(s)\n", num); +} + +/* + * Setup the PC, SP, and GP of a secondary processor and start it + * running! + */ +void prom_boot_secondary(int cpu, struct task_struct *idle) +{ + int retval; + + retval = cfe_cpu_start(cpu_logical_map(cpu), &smp_bootstrap, + __KSTK_TOS(idle), + (unsigned long)idle->thread_info, 0); + if (retval != 0) + printk("cfe_start_cpu(%i) returned %i\n" , cpu, retval); +} + +/* + * Code to run on secondary just after probing the CPU + */ +void prom_init_secondary(void) +{ + extern void sb1250_smp_init(void); + sb1250_smp_init(); +} + +/* + * Do any tidying up before marking online and running the idle + * loop + */ +void prom_smp_finish(void) +{ + extern void sb1250_smp_finish(void); + sb1250_smp_finish(); +} + +/* + * Final cleanup after all secondaries booted + */ +void prom_cpus_done(void) +{ +} |