diff options
Diffstat (limited to 'target/linux/danube/files/arch/mips/danube/setup.c')
| -rw-r--r-- | target/linux/danube/files/arch/mips/danube/setup.c | 177 |
1 files changed, 0 insertions, 177 deletions
diff --git a/target/linux/danube/files/arch/mips/danube/setup.c b/target/linux/danube/files/arch/mips/danube/setup.c deleted file mode 100644 index 60b0ce28e..000000000 --- a/target/linux/danube/files/arch/mips/danube/setup.c +++ /dev/null @@ -1,177 +0,0 @@ -/* - * arch/mips/danube/setup.c - * - * 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. - * - * Copyright (C) 2004 peng.liu@infineon.com - * - * Rewrite of Infineon Danube code, thanks to infineon for the support, - * software and hardware - * - * Copyright (C) 2007 John Crispin <blogic@openwrt.org> - * - */ - -#include <linux/init.h> - -#include <asm/time.h> -#include <asm/traps.h> -#include <asm/cpu.h> -#include <asm/irq.h> -#include <asm/danube/danube.h> -#include <asm/danube/danube_irq.h> -#include <asm/danube/danube_pmu.h> - -static unsigned int r4k_offset; /* Amount to increment compare reg each time */ -static unsigned int r4k_cur; /* What counter should be at next timer irq */ - -extern void danube_reboot_setup (void); -void prom_printf (const char * fmt, ...); - -void -__init bus_error_init (void) -{ - /* nothing yet */ -} - -unsigned int -danube_get_ddr_hz (void) -{ - switch (readl(DANUBE_CGU_SYS) & 0x3) - { - case 0: - return CLOCK_167M; - case 1: - return CLOCK_133M; - case 2: - return CLOCK_111M; - } - return CLOCK_83M; -} -EXPORT_SYMBOL(danube_get_ddr_hz); - -unsigned int -danube_get_cpu_hz (void) -{ - unsigned int ddr_clock = danube_get_ddr_hz(); - switch (readl(DANUBE_CGU_SYS) & 0xc) - { - case 0: - return CLOCK_333M; - case 4: - return ddr_clock; - } - return ddr_clock << 1; -} -EXPORT_SYMBOL(danube_get_cpu_hz); - -unsigned int -danube_get_fpi_hz (void) -{ - unsigned int ddr_clock = danube_get_ddr_hz(); - if (readl(DANUBE_CGU_SYS) & 0x40) - { - return ddr_clock >> 1; - } - return ddr_clock; -} -EXPORT_SYMBOL(danube_get_fpi_hz); - -unsigned int -danube_get_cpu_ver (void) -{ - return readl(DANUBE_MCD_CHIPID) & 0xFFFFF000; -} -EXPORT_SYMBOL(danube_get_cpu_ver); - -void -danube_time_init (void) -{ - mips_hpt_frequency = danube_get_cpu_hz() / 2; - r4k_offset = mips_hpt_frequency / HZ; - printk("mips_hpt_frequency:%d\n", mips_hpt_frequency); - printk("r4k_offset: %08x(%d)\n", r4k_offset, r4k_offset); -} - -int -danube_be_handler(struct pt_regs *regs, int is_fixup) -{ - /*TODO*/ - printk(KERN_ERR "TODO: BUS error\n"); - - return MIPS_BE_FATAL; -} - -/* ISR GPTU Timer 6 for high resolution timer */ -static irqreturn_t -danube_timer6_interrupt(int irq, void *dev_id) -{ - timer_interrupt(DANUBE_TIMER6_INT, NULL); - - return IRQ_HANDLED; -} - -static struct irqaction hrt_irqaction = { - .handler = danube_timer6_interrupt, - .flags = IRQF_DISABLED, - .name = "hrt", -}; - -void __init -plat_timer_setup (struct irqaction *irq) -{ - unsigned int retval; - - setup_irq(MIPS_CPU_TIMER_IRQ, irq); - - r4k_cur = (read_c0_count() + r4k_offset); - write_c0_compare(r4k_cur); - - danube_pmu_enable(DANUBE_PMU_PWDCR_GPT | DANUBE_PMU_PWDCR_FPI); - - writel(0x100, DANUBE_GPTU_GPT_CLC); - - writel(0xffff, DANUBE_GPTU_GPT_CAPREL); - writel(0x80C0, DANUBE_GPTU_GPT_T6CON); - - retval = setup_irq(DANUBE_TIMER6_INT, &hrt_irqaction); - - if (retval) - { - prom_printf("reqeust_irq failed %d. HIGH_RES_TIMER is diabled\n", DANUBE_TIMER6_INT); - } -} - -void __init -plat_mem_setup (void) -{ - u32 status; - prom_printf("This %s has a cpu rev of 0x%X\n", BOARD_SYSTEM_TYPE, danube_get_cpu_ver()); - - //TODO WHY ??? - /* clear RE bit*/ - status = read_c0_status(); - status &= (~(1<<25)); - write_c0_status(status); - - danube_reboot_setup(); - board_time_init = danube_time_init; - board_be_handler = &danube_be_handler; - - ioport_resource.start = IOPORT_RESOURCE_START; - ioport_resource.end = IOPORT_RESOURCE_END; - iomem_resource.start = IOMEM_RESOURCE_START; - iomem_resource.end = IOMEM_RESOURCE_END; -} |