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-rw-r--r--c/src/lib/libbsp/arm/beagle/rtc.c276
1 files changed, 0 insertions, 276 deletions
diff --git a/c/src/lib/libbsp/arm/beagle/rtc.c b/c/src/lib/libbsp/arm/beagle/rtc.c
deleted file mode 100644
index abce5df1ab..0000000000
--- a/c/src/lib/libbsp/arm/beagle/rtc.c
+++ /dev/null
@@ -1,276 +0,0 @@
-/**
- * @file
- *
- * @ingroup arm_beagle
- *
- * @brief RTC driver for AM335x SoC.
- *
- */
-
-/*
- * Copyright (c) 2015 Ragunath <ragunath3252@gmail.com>.
- *
- * The license and distribution terms for this file may be
- * found in the file LICENSE in this distribution or at
- * http://www.rtems.com/license/LICENSE.
- */
-
-#include <bspopts.h>
-
-#if IS_AM335X
-#include <rtems.h>
-#include <bsp.h>
-#include <time.h>
-#include <libchip/rtc.h>
-#include <libcpu/omap3.h>
-
-#define setbit(a,x) (a | (1<<x))
-#define bcd(a) ((a & 0x0f)+ (((a & 0xf0) >> 4 )*10))
-#define dec(a) (((a / 10) << 4) | (a % 10))
-#define WRITE_WAIT_MAX_COUNT 10000
-
-size_t RTC_Count = 1;
-
-static void rtc_write_enable(void);
-static void rtc_write_disable(void);
-static int rtc_write_wait(void);
-static void rtc_clk_init(void);
-void rtc_init(int minor);
-void print_time(void);
-int am335x_rtc_gettime(int minor,rtems_time_of_day *t);
-int am335x_rtc_settime(int minor, const rtems_time_of_day *t);
-void am335x_rtc_debug(void);
-
-/*
- * probe for a rtc. we always claim to have one.
- */
-static bool am335x_rtc_probe (int minor)
-{
- return true;
-}
-
-/*
- * Write key values to kick0 and kick1 registers to enable write access
- */
-static void rtc_write_enable(void)
-{
- mmio_write(AM335X_RTC_BASE+AM335X_RTC_KICK0,AM335X_RTC_KICK0_KEY);
- mmio_write(AM335X_RTC_BASE+AM335X_RTC_KICK1,AM335X_RTC_KICK1_KEY);
-}
-
-/*
- * Write random (0x11111111) value to kick0 and kick1 registers to disable write access
- */
-static void rtc_write_disable(void)
-{
- /* Write some random value other than key to disable*/
- mmio_write(AM335X_RTC_BASE+AM335X_RTC_KICK0,0x11111111);
- mmio_write(AM335X_RTC_BASE+AM335X_RTC_KICK1,0x11111111);
-}
-
-/*
- * Wait till busy bit is reset
- */
-static int rtc_write_wait(void)
-{
- int i = WRITE_WAIT_MAX_COUNT;
- while((mmio_read(AM335X_RTC_BASE+AM335X_RTC_STATUS_REG) & 0x1) && (i--));
-
- if(i == 0)
- return RTEMS_RESOURCE_IN_USE;
- else
- return RTEMS_SUCCESSFUL;
-}
-
-
-/*
- * Initialize RTC clock
- */
-static void rtc_clk_init(void)
-{
- uint32_t a = 0x0;
-
- a = setbit(a,1);
- /* IDLEST = 0x0 & MODULEMODE = 0x1*/
- mmio_write(CM_RTC_BASE+CM_RTC_RTC_CLKCTRL,a);
- a = 0x0;
-
- /*32K rtc clock active*/
- a = setbit(a,9);
- a = setbit(a,8);
- mmio_write(CM_RTC_BASE+CM_RTC_CLKSTCTRL,a);
-}
-
-void rtc_init(int minor)
-{
- uint32_t a = 0x0;
-
- rtc_clk_init();
- /*
- * Steps to enable RTC
- * 1. Enable the module clock domains (rtc_clk_init).
- * 2. Enable the RTC module using CTRL_REG.RTC_disable. (Default enabled. Nothing done)
- * 3. Enable the 32K clock from PER PLL, if using the internal RTC oscillator.
- * 4. Write to the kick registers (KICK0R, KICK1R) in the RTC.
- * 5. Configure the timer in RTCSS for desired application (set time and date, alarm wakeup, and so on).
- * 6. Start the RTC (in CTRL_REG.STOP_RTC).
- */
- rtc_write_enable();
- a = setbit(a,0);
- mmio_write(AM335X_RTC_BASE+AM335X_RTC_SYSCONFIG,a);
- a = mmio_read(AM335X_RTC_BASE+AM335X_RTC_OSC_CLOCK);
- a = setbit(a,6);
- mmio_write(AM335X_RTC_BASE+AM335X_RTC_OSC_CLOCK,a);
- a = mmio_read(AM335X_RTC_BASE+AM335X_RTC_CTRL_REG);
- a = setbit(a,0);
- mmio_write(AM335X_RTC_BASE+AM335X_RTC_CTRL_REG,a);
-
- rtc_write_disable();
-}
-
-int am335x_rtc_gettime(int minor,rtems_time_of_day *t)
-{
- uint32_t a = 0x0;
-
- if(minor != 0)
- return RTEMS_INVALID_NUMBER;
-
- a = mmio_read(AM335X_RTC_BASE+AM335X_RTC_SECS);
- t->second = bcd(a);
- a = mmio_read(AM335X_RTC_BASE+AM335X_RTC_MINS);
- t->minute = bcd(a);
- a = mmio_read(AM335X_RTC_BASE+AM335X_RTC_HOURS);
- t->hour = bcd(a);
- a = mmio_read(AM335X_RTC_BASE+AM335X_RTC_DAYS);
- t->day = bcd(a);
- a = mmio_read(AM335X_RTC_BASE+AM335X_RTC_MONTHS);
- t->month = bcd(a);
- a = mmio_read(AM335X_RTC_BASE+AM335X_RTC_YEARS);
- t->year = bcd(a)+2000;
- t->ticks=0;
- return RTEMS_SUCCESSFUL;
-}
-
-int am335x_rtc_settime(int minor,const rtems_time_of_day *t)
-{
- uint32_t a=0x0;
- int rv;
-
- if(minor != 0)
- return RTEMS_INVALID_NUMBER;
-
- rtc_write_enable();
-
- /* Wait till the busy bit is reset to write again*/
- a = t->second;
- rv=rtc_write_wait();
- if(rv != RTEMS_SUCCESSFUL)
- return rv;
- a = mmio_write(AM335X_RTC_BASE+AM335X_RTC_SECS,dec(a) & 0x7f);
-
- a = t->minute;
- rv=rtc_write_wait();
- if(rv != RTEMS_SUCCESSFUL)
- return rv;
- a = mmio_write(AM335X_RTC_BASE+AM335X_RTC_MINS,dec(a) & 0x7f);
-
- a = t->hour;
- rv=rtc_write_wait();
- if(rv != RTEMS_SUCCESSFUL)
- return rv;
- a = mmio_write(AM335X_RTC_BASE+AM335X_RTC_HOURS,dec(a) & 0x3f);
-
- a = t->day;
- rv=rtc_write_wait();
- if(rv != RTEMS_SUCCESSFUL)
- return rv;
- a = mmio_write(AM335X_RTC_BASE+AM335X_RTC_DAYS,dec(a) & 0x3f);
-
- a = t->month;
- rv=rtc_write_wait();
- if(rv != RTEMS_SUCCESSFUL)
- return rv;
- a = mmio_write(AM335X_RTC_BASE+AM335X_RTC_MONTHS,dec(a) & 0x1f);
-
- a = t->year;
- rv=rtc_write_wait();
- if(rv != RTEMS_SUCCESSFUL)
- return rv;
- a = mmio_write(AM335X_RTC_BASE+AM335X_RTC_YEARS,(dec(a)%100) & 0xff);
-
- rtc_write_disable();
- return rv;
-}
-
-#if BBB_DEBUG
-void print_time(void)
-{
- uint32_t a = 0x0;
- a = mmio_read(AM335X_RTC_BASE+AM335X_RTC_SECS);
- printk("\n\rSecs %x",a);
- a = mmio_read(AM335X_RTC_BASE+AM335X_RTC_MINS);
- printk("\n\rMins %x",a);
- a = mmio_read(AM335X_RTC_BASE+AM335X_RTC_HOURS);
- printk("\n\rHours %x",a);
- a = mmio_read(AM335X_RTC_BASE+AM335X_RTC_DAYS);
- printk("\n\rDays %x",a);
- a = mmio_read(AM335X_RTC_BASE+AM335X_RTC_MONTHS);
- printk("\n\r Months %x",a);
- a = mmio_read(AM335X_RTC_BASE+AM335X_RTC_YEARS);
- printk("\n\rYears %x",a);
- a = mmio_read(AM335X_RTC_BASE+AM335X_RTC_WEEKS);
- printk("\n\rWeeks %x",a);
-}
-
-void am335x_rtc_debug(void)
-{
- int i;
- rtems_time_of_day t,r;
-
- t.second = 1;
- t.minute = 1;
- t.hour = 1;
- t.day = 7;
- t.month = 3;
- t. year = 2015;
-
- am335x_rtc_settime(0,&t);
- am335x_rtc_gettime(0,&r);
-
- printk("Secs %x",r.second);
- printk("Mins %x",r.minute);
- printk("Hours %x",r.hour);
- printk("Days %x",r.day);
- printk("Months %x",r.month);
- printk("Years %x",r.year);
-}
-#endif
-
-/*
- * driver function table.
- */
-rtc_fns am335x_rtc_fns = {
- rtc_init,
- am335x_rtc_gettime,
- am335x_rtc_settime
-};
-
-/*
- * the following table configures the RTC drivers used in this BSP
- */
-
-rtc_tbl RTC_Table[] = {
- {
- "/dev/rtc", /* sDeviceName */
- RTC_CUSTOM, /* deviceType */
- &am335x_rtc_fns, /* pDeviceFns */
- am335x_rtc_probe, /* deviceProbe */
- NULL, /* pDeviceParams */
- 0, /* ulCtrlPort1 */
- 0, /* ulDataPort */
- NULL, /* getRegister */
- NULL /* setRegister */
- }
-};
-
-#endif
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