diff options
Diffstat (limited to 'target/linux/realtek/files/arch/rlx/bsp/timer.c')
| -rw-r--r-- | target/linux/realtek/files/arch/rlx/bsp/timer.c | 146 |
1 files changed, 146 insertions, 0 deletions
diff --git a/target/linux/realtek/files/arch/rlx/bsp/timer.c b/target/linux/realtek/files/arch/rlx/bsp/timer.c new file mode 100644 index 000000000..137e73557 --- /dev/null +++ b/target/linux/realtek/files/arch/rlx/bsp/timer.c @@ -0,0 +1,146 @@ +/* + * linux/arch/rlx/rlxocp/time.c + * + * Copyright (C) 1999 Harald Koerfgen + * Copyright (C) 2000 Pavel Machek (pavel@suse.cz) + * Copyright (C) 2001 Steven J. Hill (sjhill@realitydiluted.com) + * Copyright (C) 2006 Realtek Semiconductor Corp. + * Copyright (C) 2013 Artur Artamonov (artur@advem.lv) + * + * 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. + * + * Time handling functinos for Philips Nino. + */ +#include <linux/errno.h> +#include <linux/init.h> +#include <linux/sched.h> +#include <linux/kernel.h> +#include <linux/param.h> +#include <linux/string.h> +#include <linux/mm.h> +#include <linux/interrupt.h> +#include <linux/timex.h> +#include <linux/delay.h> + +#include <asm/time.h> +#include <asm/rlxbsp.h> + +#include "bspchip.h" +#include "rlxhack.h" + +#ifdef CONFIG_RTL_TIMER_ADJUSTMENT +#include <net/rtl/rtl_types.h> +#include <rtl865xc_asicregs.h> + +void rtl865x_setupTimer1(void) +{ + WRITE_MEM32( BSP_TCCNR, READ_MEM32(BSP_TCCNR) & ~BSP_TC1EN );/* Disable timer1 */ + #ifdef CONFIG_RTL8196C_REVISION_B + WRITE_MEM32( BSP_TC1DATA, 0xfffffff0); + #else + WRITE_MEM32( BSP_TC1DATA, 0xffffff00); + #endif + WRITE_MEM32( BSP_TCCNR, ( READ_MEM32(BSP_TCCNR) | BSP_TC1EN ) | BSP_TC1MODE_TIMER );/* Enable timer1 - timer mode */ + WRITE_MEM32( BSP_TCIR, READ_MEM32(BSP_TCIR) & ~BSP_TC1IE ); /* Disable timer1 interrupt */ +} +#endif + +void inline bsp_timer_ack(void) +{ + REG32(BSP_TCIR) |= BSP_TC0IP; +} + +void __init bsp_timer_init(void) +{ + unsigned int sys_clock_rate; + + sys_clock_rate = BSP_SYS_CLK_RATE; + + /* Clear Timer IP status */ + if (REG32(BSP_TCIR) & BSP_TC0IP) + REG32(BSP_TCIR) |= BSP_TC0IP; + + /* disable timer */ + REG32(BSP_TCCNR) = 0; /* disable timer before setting CDBR */ + + /* initialize timer registers */ +#if defined(CONFIG_RTL_8196C) + REG32(BSP_CDBR)=(BSP_DIVISOR*8) << BSP_DIVF_OFFSET; + #ifdef CONFIG_RTL8196C_REVISION_B + if (REG32(BSP_REVR) == RTL8196C_REVISION_B) + REG32(BSP_TC0DATA) = (((sys_clock_rate/(BSP_DIVISOR*8))/HZ)) << 4; + else + #endif + REG32(BSP_TC0DATA) = (((sys_clock_rate/(BSP_DIVISOR*8))/HZ)) << BSP_TCD_OFFSET; + +//when will add one more platform change to more generic code +#elif defined(CONFIG_RTL_819XD) + REG32(BSP_CDBR)=(BSP_DIVISOR) << BSP_DIVF_OFFSET; + #if defined(CONFIG_RTL8198_REVISION_B) || defined(CONFIG_RTL_819XD) + if ((REG32(BSP_REVR) >= BSP_RTL8198_REVISION_B) || ((REG32(BSP_REVR) & 0xFFFFF000) == BSP_RTL8197D)) + REG32(BSP_TC0DATA) = (((sys_clock_rate/BSP_DIVISOR)/HZ)) << 4; + else + #endif + REG32(BSP_TC0DATA) = (((sys_clock_rate/BSP_DIVISOR)/HZ)) << BSP_TCD_OFFSET; + #if defined(CONFIG_RTL_WTDOG) + #ifdef CONFIG_RTK_VOIP + { + extern void bsp_enable_watchdog( void ); + bsp_enable_watchdog(); + } + #else + REG32(BSP_WDTCNR) = 0x00600000; + #endif + #endif +#endif + + + // extend timer base to 4 times + //REG32(BSP_CDBR)=(BSP_DIVISOR*4) << BSP_DIVF_OFFSET; + //REG32(BSP_TC0DATA) = (((sys_clock_rate/(BSP_DIVISOR*4))/HZ)) << BSP_TCD_OFFSET; +#if defined(CONFIG_RTL_WTDOG) + REG32(BSP_WDTCNR) = 0x00600000; +#endif + + /* hook up timer interrupt handler */ + rlx_clockevent_init(BSP_TC0_IRQ); + + /* enable timer */ + REG32(BSP_TCCNR) = BSP_TC0EN | BSP_TC0MODE_TIMER; + REG32(BSP_TCIR) = BSP_TC0IE; +#ifdef CONFIG_RTL_TIMER_ADJUSTMENT + rtl865x_setupTimer1(); +#endif + +} + +#ifdef CONFIG_RTK_VOIP +void timer1_enable(void) +{ + printk( "timer1_enable not implement!!\n" ); +} + +void timer1_disable(void) +{ + printk( "timer1_disable not implement!!\n" ); +} + +#ifdef CONFIG_RTL_WTDOG +int bBspWatchdog = 0; + +void bsp_enable_watchdog( void ) +{ + bBspWatchdog = 1; + *(volatile unsigned long *)(0xb800311C)=0x00600000; +} + +void bsp_disable_watchdog( void ) +{ + *(volatile unsigned long *)(0xb800311C)=0xA5600000; + bBspWatchdog = 0; +} +#endif // CONFIG_RTL_WTDOG + +#endif // CONFIG_RTK_VOIP |