diff options
author | nbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2007-09-06 16:27:37 +0000 |
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committer | nbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2007-09-06 16:27:37 +0000 |
commit | 17c7b6c3fdc48301e50d22cc6138ede16bd1be24 (patch) | |
tree | a5d41b991a151e72663527a96fbc6c494565d65c /target/linux/adm5120/files/arch/mips/adm5120/adm5120_info.c | |
parent | 5389989abaa52926b22f9f030d1481df1e73d745 (diff) |
strip the kernel version suffix from target directories, except for brcm-2.4 (the -2.4 will be included in the board name here). CONFIG_LINUX_<ver>_<board> becomes CONFIG_TARGET_<board>, same for profiles.
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@8653 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/adm5120/files/arch/mips/adm5120/adm5120_info.c')
-rw-r--r-- | target/linux/adm5120/files/arch/mips/adm5120/adm5120_info.c | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/target/linux/adm5120/files/arch/mips/adm5120/adm5120_info.c b/target/linux/adm5120/files/arch/mips/adm5120/adm5120_info.c new file mode 100644 index 000000000..e2ee5ca56 --- /dev/null +++ b/target/linux/adm5120/files/arch/mips/adm5120/adm5120_info.c @@ -0,0 +1,93 @@ +/* + * $Id$ + * + * Copyright (C) 2007 OpenWrt.org + * Copyright (C) 2007 Gabor Juhos <juhosg at openwrt.org> + * + * 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., 51 Franklin Street, Fifth Floor, + * Boston, MA 02110-1301, USA. + * + */ + +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/init.h> + +#include <asm/bootinfo.h> +#include <asm/addrspace.h> + +#include <asm/mach-adm5120/adm5120_info.h> +#include <asm/mach-adm5120/adm5120_defs.h> +#include <asm/mach-adm5120/adm5120_switch.h> + +unsigned int adm5120_product_code; +unsigned int adm5120_revision; +unsigned int adm5120_package; +unsigned int adm5120_nand_boot; +unsigned long adm5120_speed; + +#define SWITCH_READ(r) *(u32 *)(KSEG1ADDR(ADM5120_SWITCH_BASE)+(r)) +#define SWITCH_WRITE(r,v) *(u32 *)(KSEG1ADDR(ADM5120_SWITCH_BASE)+(r))=(v) + +/* + * CPU settings detection + */ +#define CODE_GET_PC(c) ((c) & CODE_PC_MASK) +#define CODE_GET_REV(c) (((c) >> CODE_REV_SHIFT) & CODE_REV_MASK) +#define CODE_GET_PK(c) (((c) >> CODE_PK_SHIFT) & CODE_PK_MASK) +#define CODE_GET_CLKS(c) (((c) >> CODE_CLKS_SHIFT) & CODE_CLKS_MASK) +#define CODE_GET_NAB(c) (((c) & CODE_NAB) != 0) + +void adm5120_ndelay(u32 ns) +{ + u32 t; + + SWITCH_WRITE(SWITCH_REG_TIMER, TIMER_PERIOD_DEFAULT); + SWITCH_WRITE(SWITCH_REG_TIMER_INT, (TIMER_INT_TOS | TIMER_INT_TOM)); + + t = (ns+640) / 640; + t &= TIMER_PERIOD_MASK; + SWITCH_WRITE(SWITCH_REG_TIMER, t | TIMER_TE); + + /* wait until the timer expires */ + do { + t = SWITCH_READ(SWITCH_REG_TIMER_INT); + } while ((t & TIMER_INT_TOS) == 0); + + /* leave the timer disabled */ + SWITCH_WRITE(SWITCH_REG_TIMER, TIMER_PERIOD_DEFAULT); + SWITCH_WRITE(SWITCH_REG_TIMER_INT, (TIMER_INT_TOS | TIMER_INT_TOM)); +} + +void __init adm5120_soc_init(void) +{ + u32 code; + u32 clks; + + code = SWITCH_READ(SWITCH_REG_CODE); + + adm5120_product_code = CODE_GET_PC(code); + adm5120_revision = CODE_GET_REV(code); + adm5120_package = (CODE_GET_PK(code) == CODE_PK_BGA) ? + ADM5120_PACKAGE_BGA : ADM5120_PACKAGE_PQFP; + adm5120_nand_boot = CODE_GET_NAB(code); + + clks = CODE_GET_CLKS(code); + adm5120_speed = ADM5120_SPEED_175; + if (clks & 1) + adm5120_speed += 25000000; + if (clks & 2) + adm5120_speed += 50000000; +} |