diff options
Diffstat (limited to 'target/linux/adm5120/files-3.18/arch/mips/adm5120/prom')
8 files changed, 539 insertions, 0 deletions
diff --git a/target/linux/adm5120/files-3.18/arch/mips/adm5120/prom/Makefile b/target/linux/adm5120/files-3.18/arch/mips/adm5120/prom/Makefile new file mode 100644 index 0000000..650be40 --- /dev/null +++ b/target/linux/adm5120/files-3.18/arch/mips/adm5120/prom/Makefile @@ -0,0 +1,10 @@ +# +# Makefile for the ADMtek ADM5120 SoC specific parts of the kernel +# + +lib-y += admboot.o +lib-y += bootbase.o +lib-y += cfe.o +lib-y += generic.o +lib-y += myloader.o +lib-y += routerboot.o diff --git a/target/linux/adm5120/files-3.18/arch/mips/adm5120/prom/admboot.c b/target/linux/adm5120/files-3.18/arch/mips/adm5120/prom/admboot.c new file mode 100644 index 0000000..b655390 --- /dev/null +++ b/target/linux/adm5120/files-3.18/arch/mips/adm5120/prom/admboot.c @@ -0,0 +1,55 @@ +/* + * ADMBoot specific prom routines + * + * Copyright (C) 2008 Gabor Juhos <juhosg@openwrt.org> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * + */ + +#include <linux/types.h> +#include <linux/init.h> +#include <linux/errno.h> + +#include <asm/addrspace.h> +#include <asm/byteorder.h> + +#include <asm/mach-adm5120/adm5120_defs.h> +#include <prom/admboot.h> +#include "prom_read.h" + +#define ADMBOOT_MAGIC_MAC_BASE 0x636D676D /* 'mgmc' */ +#define ADMBOOT_MAGIC_MAC_BASE_BR6104XX 0x31305348 /* 'HS01' */ + +int __init admboot_get_mac_base(u32 offset, u32 len, u8 *mac) +{ + u8 *cfg; + int i; + + cfg = (u8 *) KSEG1ADDR(ADM5120_SRAM0_BASE + offset); + for (i = 0; i < len; i += 4) { + u32 magic; + + magic = prom_read_le32(cfg + i); + if (magic == ADMBOOT_MAGIC_MAC_BASE) { + int j; + + for (j = 0; j < 6; j++) + mac[j] = cfg[i + 4 + j]; + + return 0; + } + if (magic == ADMBOOT_MAGIC_MAC_BASE_BR6104XX) { + int j; + + for (j = 0; j < 6; j++) + mac[j] = cfg[i + 7 + j]; + + return 0; + } + } + + return -ENXIO; +} diff --git a/target/linux/adm5120/files-3.18/arch/mips/adm5120/prom/bootbase.c b/target/linux/adm5120/files-3.18/arch/mips/adm5120/prom/bootbase.c new file mode 100644 index 0000000..063281e --- /dev/null +++ b/target/linux/adm5120/files-3.18/arch/mips/adm5120/prom/bootbase.c @@ -0,0 +1,119 @@ +/* + * ZyXEL's Bootbase specific prom routines + * + * Copyright (C) 2007-2008 Gabor Juhos <juhosg@openwrt.org> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * + */ + +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/string.h> + +#include <asm/bootinfo.h> +#include <asm/addrspace.h> +#include <asm/byteorder.h> + +#include <asm/mach-adm5120/adm5120_defs.h> +#include <prom/zynos.h> +#include "prom_read.h" + +#define ZYNOS_INFO_ADDR KSEG1ADDR(ADM5120_SRAM0_BASE+0x3F90) +#define ZYNOS_HDBG_ADDR KSEG1ADDR(ADM5120_SRAM0_BASE+0x4000) +#define BOOTEXT_ADDR_MIN KSEG1ADDR(ADM5120_SRAM0_BASE) +#define BOOTEXT_ADDR_MAX (BOOTEXT_ADDR_MIN + (2*1024*1024)) + +static int bootbase_found; +static struct zynos_board_info *board_info; + +struct bootbase_info bootbase_info; + +static inline int bootbase_dbgarea_present(u8 *data) +{ + u32 t; + + t = prom_read_be32(data+5); + if (t != ZYNOS_MAGIC_DBGAREA1) + return 0; + + t = prom_read_be32(data+9); + if (t != ZYNOS_MAGIC_DBGAREA2) + return 0; + + return 1; +} + +static inline u32 bootbase_get_bootext_addr(void) +{ + return prom_read_be32(&board_info->bootext_addr); +} + +static inline void bootbase_get_mac(u8 *mac) +{ + int i; + + for (i = 0; i < 6; i++) + mac[i] = board_info->mac[i]; +} + +static inline u16 bootbase_get_vendor_id(void) +{ +#define CHECK_VENDOR(n) (strnicmp(board_info->vendor, (n), strlen(n)) == 0) + unsigned char vendor[ZYNOS_NAME_LEN]; + int i; + + for (i = 0; i < ZYNOS_NAME_LEN; i++) + vendor[i] = board_info->vendor[i]; + + if CHECK_VENDOR(ZYNOS_VENDOR_ZYXEL) + return ZYNOS_VENDOR_ID_ZYXEL; + + if CHECK_VENDOR(ZYNOS_VENDOR_DLINK) + return ZYNOS_VENDOR_ID_DLINK; + + if CHECK_VENDOR(ZYNOS_VENDOR_LUCENT) + return ZYNOS_VENDOR_ID_LUCENT; + + if CHECK_VENDOR(ZYNOS_VENDOR_NETGEAR) + return ZYNOS_VENDOR_ID_NETGEAR; + + return ZYNOS_VENDOR_ID_OTHER; +} + +static inline u16 bootbase_get_board_id(void) +{ + return prom_read_be16(&board_info->board_id); +} + +int __init bootbase_present(void) +{ + u32 t; + + if (bootbase_found) + goto out; + + /* check presence of the dbgarea */ + if (bootbase_dbgarea_present((u8 *)ZYNOS_HDBG_ADDR) == 0) + goto out; + + board_info = (struct zynos_board_info *)(ZYNOS_INFO_ADDR); + + /* check for a valid BootExt address */ + t = bootbase_get_bootext_addr(); + if ((t < BOOTEXT_ADDR_MIN) || (t > BOOTEXT_ADDR_MAX)) + goto out; + + bootbase_info.vendor_id = bootbase_get_vendor_id(); + bootbase_info.board_id = bootbase_get_board_id(); + bootbase_get_mac(bootbase_info.mac); + + bootbase_found = 1; + +out: + return bootbase_found; +} + diff --git a/target/linux/adm5120/files-3.18/arch/mips/adm5120/prom/cfe.c b/target/linux/adm5120/files-3.18/arch/mips/adm5120/prom/cfe.c new file mode 100644 index 0000000..5a343cd --- /dev/null +++ b/target/linux/adm5120/files-3.18/arch/mips/adm5120/prom/cfe.c @@ -0,0 +1,69 @@ +/* + * Broadcom's CFE specific prom routines + * + * Copyright (C) 2007-2008 Gabor Juhos <juhosg@openwrt.org> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * + */ + +#include <linux/types.h> +#include <linux/init.h> + +#include <asm/bootinfo.h> +#include <asm/addrspace.h> + +#include <prom/cfe.h> +#include "prom_read.h" + +/* + * CFE based boards + */ +#define CFE_EPTSEAL 0x43464531 /* CFE1 is the magic number to recognize CFE +from other bootloaders */ + +static int cfe_found; + +static u32 cfe_handle; +static u32 cfe_entry; +static u32 cfe_seal; + +int __init cfe_present(void) +{ + /* + * This method only works, when we are booted directly from the CFE. + */ + u32 a1 = (u32) fw_arg1; + + if (cfe_found) + return 1; + + cfe_handle = (u32) fw_arg0; + cfe_entry = (u32) fw_arg2; + cfe_seal = (u32) fw_arg3; + + /* Check for CFE by finding the CFE magic number */ + if (cfe_seal != CFE_EPTSEAL) + return 0; + + /* cfe_a1_val must be 0, because only one CPU present in the ADM5120 */ + if (a1 != 0) + return 0; + + /* The cfe_handle, and the cfe_entry must be kernel mode addresses */ + if ((cfe_handle < KSEG0) || (cfe_entry < KSEG0)) + return 0; + + cfe_found = 1; + return 1; +} + +char *cfe_getenv(char *envname) +{ + if (cfe_found == 0) + return NULL; + + return NULL; +} diff --git a/target/linux/adm5120/files-3.18/arch/mips/adm5120/prom/generic.c b/target/linux/adm5120/files-3.18/arch/mips/adm5120/prom/generic.c new file mode 100644 index 0000000..4d4caa8 --- /dev/null +++ b/target/linux/adm5120/files-3.18/arch/mips/adm5120/prom/generic.c @@ -0,0 +1,47 @@ +/* + * Generic PROM routines + * + * Copyright (C) 2007-2008 Gabor Juhos <juhosg@openwrt.org> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * + */ + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/string.h> + +#include <asm/bootinfo.h> + +#include <prom/generic.h> + +static int *_prom_argc; +static char **_prom_argv; +static char **_prom_envp; + +char *generic_prom_getenv(char *envname) +{ + char **env; + char *ret; + + ret = NULL; + for (env = _prom_envp; *env != NULL; env++) { + if (strcmp(envname, *env++) == 0) { + ret = *env; + break; + } + } + + return ret; +} + +int generic_prom_present(void) +{ + _prom_argc = (int *)fw_arg0; + _prom_argv = (char **)fw_arg1; + _prom_envp = (char **)fw_arg2; + + return 1; +} diff --git a/target/linux/adm5120/files-3.18/arch/mips/adm5120/prom/myloader.c b/target/linux/adm5120/files-3.18/arch/mips/adm5120/prom/myloader.c new file mode 100644 index 0000000..5357db5 --- /dev/null +++ b/target/linux/adm5120/files-3.18/arch/mips/adm5120/prom/myloader.c @@ -0,0 +1,68 @@ +/* + * Compex's MyLoader specific prom routines + * + * Copyright (C) 2007-2008 Gabor Juhos <juhosg@openwrt.org> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * + */ + +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/string.h> + +#include <asm/bootinfo.h> +#include <asm/addrspace.h> +#include <asm/byteorder.h> + +#include <asm/mach-adm5120/adm5120_defs.h> +#include <prom/myloader.h> +#include "prom_read.h" + +#define SYS_PARAMS_ADDR KSEG1ADDR(ADM5120_SRAM0_BASE+0x0F000) +#define BOARD_PARAMS_ADDR KSEG1ADDR(ADM5120_SRAM0_BASE+0x0F800) +#define PART_TABLE_ADDR KSEG1ADDR(ADM5120_SRAM0_BASE+0x10000) + +static int myloader_found; + +struct myloader_info myloader_info; + +int __init myloader_present(void) +{ + struct mylo_system_params *sysp; + struct mylo_board_params *boardp; + struct mylo_partition_table *parts; + int i; + + if (myloader_found) + goto out; + + sysp = (struct mylo_system_params *)(SYS_PARAMS_ADDR); + boardp = (struct mylo_board_params *)(BOARD_PARAMS_ADDR); + parts = (struct mylo_partition_table *)(PART_TABLE_ADDR); + + /* Check for some magic numbers */ + if ((le32_to_cpu(sysp->magic) != MYLO_MAGIC_SYS_PARAMS) || + (le32_to_cpu(boardp->magic) != MYLO_MAGIC_BOARD_PARAMS) || + (le32_to_cpu(parts->magic) != MYLO_MAGIC_PARTITIONS)) + goto out; + + myloader_info.vid = le32_to_cpu(sysp->vid); + myloader_info.did = le32_to_cpu(sysp->did); + myloader_info.svid = le32_to_cpu(sysp->svid); + myloader_info.sdid = le32_to_cpu(sysp->sdid); + + for (i = 0; i < MYLO_ETHADDR_COUNT; i++) { + int j; + for (j = 0; j < 6; j++) + myloader_info.macs[i][j] = boardp->addr[i].mac[j]; + } + + myloader_found = 1; + +out: + return myloader_found; +} diff --git a/target/linux/adm5120/files-3.18/arch/mips/adm5120/prom/prom_read.h b/target/linux/adm5120/files-3.18/arch/mips/adm5120/prom/prom_read.h new file mode 100644 index 0000000..1a6ea11 --- /dev/null +++ b/target/linux/adm5120/files-3.18/arch/mips/adm5120/prom/prom_read.h @@ -0,0 +1,50 @@ +/* + * Generic prom definitions + * + * Copyright (C) 2007-2008 Gabor Juhos <juhosg@openwrt.org> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * + */ + +#ifndef _ADM5120_PROM_H_ +#define _ADM5120_PROM_H_ + +/* + * Helper routines + */ +static inline u16 prom_read_le16(void *buf) +{ + u8 *p = buf; + + return ((u16)p[0] + ((u16)p[1] << 8)); +} + +static inline u32 prom_read_le32(void *buf) +{ + u8 *p = buf; + + return ((u32)p[0] + ((u32)p[1] << 8) + ((u32)p[2] << 16) + + ((u32)p[3] << 24)); +} + +static inline u16 prom_read_be16(void *buf) +{ + u8 *p = buf; + + return (((u16)p[0] << 8) + (u16)p[1]); +} + +static inline u32 prom_read_be32(void *buf) +{ + u8 *p = buf; + + return (((u32)p[0] << 24) + ((u32)p[1] << 16) + ((u32)p[2] << 8) + + ((u32)p[3])); +} + +#endif /* _ADM5120_PROM_H_ */ + + diff --git a/target/linux/adm5120/files-3.18/arch/mips/adm5120/prom/routerboot.c b/target/linux/adm5120/files-3.18/arch/mips/adm5120/prom/routerboot.c new file mode 100644 index 0000000..d9a06d9 --- /dev/null +++ b/target/linux/adm5120/files-3.18/arch/mips/adm5120/prom/routerboot.c @@ -0,0 +1,121 @@ +/* + * Mikrotik's RouterBOOT specific prom routines + * + * Copyright (C) 2007-2008 Gabor Juhos <juhosg@openwrt.org> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * + */ + +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/string.h> +#include <linux/module.h> +#include <linux/routerboot.h> + +#include <asm/bootinfo.h> +#include <asm/addrspace.h> + +#include <asm/mach-adm5120/adm5120_defs.h> +#include <prom/routerboot.h> +#include "prom_read.h" + +struct rb_hard_settings rb_hs; +static int rb_found; + +static int __init routerboot_load_hs(u8 *buf, u16 buflen) +{ + u16 id, len; + + memset(&rb_hs, 0, sizeof(rb_hs)); + + if (buflen < 4) + return -1; + + if (prom_read_le32(buf) != RB_MAGIC_HARD) + return -1; + + /* skip magic value */ + buf += 4; + buflen -= 4; + + while (buflen > 2) { + id = prom_read_le16(buf); + buf += 2; + buflen -= 2; + if (id == RB_ID_TERMINATOR || buflen < 2) + break; + + len = prom_read_le16(buf); + buf += 2; + buflen -= 2; + + if (buflen < len) + break; + + switch (id) { + case RB_ID_BIOS_VERSION: + rb_hs.bios_ver = (char *)buf; + break; + case RB_ID_BOARD_NAME: + rb_hs.name = (char *)buf; + break; + case RB_ID_MEMORY_SIZE: + rb_hs.mem_size = prom_read_le32(buf); + break; + case RB_ID_MAC_ADDRESS_COUNT: + rb_hs.mac_count = prom_read_le32(buf); + break; + case RB_ID_MAC_ADDRESS_PACK: + if ((len / RB_MAC_SIZE) > 0) + rb_hs.mac_base = buf; + break; + } + + buf += len; + buflen -= len; + + } + + return 0; +} + +#define RB_BS_OFFS 0x14 +#define RB_OFFS_MAX (128*1024) + +int __init routerboot_present(void) +{ + struct rb_bios_settings *bs; + u8 *base; + u32 off, len; + + if (rb_found) + goto out; + + base = (u8 *)KSEG1ADDR(ADM5120_SRAM0_BASE); + bs = (struct rb_bios_settings *)(base + RB_BS_OFFS); + + off = prom_read_le32(&bs->hs_offs); + len = prom_read_le32(&bs->hs_size); + if (off > RB_OFFS_MAX) + goto out; + + if (routerboot_load_hs(base+off, len) != 0) + goto out; + + rb_found = 1; + +out: + return rb_found; +} + +char *routerboot_get_boardname(void) +{ + if (rb_found == 0) + return NULL; + + return rb_hs.name; +} |