From 15ef8a5d17181ea376fac94579dce0af1cfcdeb7 Mon Sep 17 00:00:00 2001 From: wdenk Date: Wed, 18 Jun 2003 20:22:24 +0000 Subject: [PATCH] Add support for DS12887 RTC; add RTC support for ATC board --- CHANGELOG | 4 +- board/atc/atc.c | 54 ++++++++++ board/atc/config.mk | 7 +- cpu/mpc8260/pci.c | 8 +- include/configs/atc.h | 20 +++- rtc/Makefile | 3 +- rtc/ds12887.c | 238 ++++++++++++++++++++++++++++++++++++++++++ 7 files changed, 323 insertions(+), 11 deletions(-) create mode 100644 rtc/ds12887.c diff --git a/CHANGELOG b/CHANGELOG index 8cc4113c34..3f2dc5a8f7 100644 --- a/CHANGELOG +++ b/CHANGELOG @@ -2,6 +2,8 @@ Changes since U-Boot 0.3.1: ====================================================================== +* Add support for DS12887 RTC; add RTC support for ATC board + * Patch by Nicolas Lacressonniere, 11 Jun 2003: Modifications for Atmel AT91RM9200DK ARM920T based development kit - Add Atmel DataFlash support for reading and writing. @@ -419,7 +421,7 @@ Changes for U-Boot 0.3.0: * TRAB fixes / extensions: - Restore VFD brightness as saved in environment - - add support for FGujitsu flashes + - add support for Fujitsu flashes - make sure both buzzers are turned off (drive low level) * Patches by Robert Schwebel, 06 Mar 2003: diff --git a/board/atc/atc.c b/board/atc/atc.c index 21ed2b0516..ea7416a2bd 100644 --- a/board/atc/atc.c +++ b/board/atc/atc.c @@ -203,6 +203,49 @@ const iop_conf_t iop_conf_tab[4][32] = { } }; +/* + * UPMB initialization table + */ +#define _NOT_USED_ 0xFFFFFFFF + +static const uint rtc_table[] = +{ + /* + * Single Read. (Offset 0 in UPMA RAM) + */ + 0xfffec00, 0xfffac00, 0xfff2d00, 0xfef2800, + 0xfaf2080, 0xfaf2080, 0xfff2400, 0x1fff6c05, /* last */ + /* + * Burst Read. (Offset 8 in UPMA RAM) + */ + _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, + _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, + _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, + _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, + /* + * Single Write. (Offset 18 in UPMA RAM) + */ + 0xfffec00, 0xfffac00, 0xfff2d00, 0xfef2800, + 0xfaf2080, 0xfaf2080, 0xfaf2400, 0x1fbf6c05, /* last */ + /* + * Burst Write. (Offset 20 in UPMA RAM) + */ + _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, + _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, + _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, + _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, + /* + * Refresh (Offset 30 in UPMA RAM) + */ + _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, + _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, + _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, + /* + * Exception. (Offset 3c in UPMA RAM) + */ + _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, +}; + /* ------------------------------------------------------------------------- */ /* Check Board Identity: @@ -319,6 +362,17 @@ static long int try_init (volatile memctl8260_t * memctl, ulong sdmr, return (maxsize); } +int misc_init_r(void) +{ + volatile immap_t *immap = (immap_t *) CFG_IMMR; + volatile memctl8260_t *memctl = &immap->im_memctl; + + upmconfig(UPMA, (uint *)rtc_table, sizeof(rtc_table) / sizeof(uint)); + memctl->memc_mamr = MxMR_RLFx_6X | MxMR_WLFx_6X | MxMR_OP_NORM; + + return (0); +} + long int initdram (int board_type) { volatile immap_t *immap = (immap_t *) CFG_IMMR; diff --git a/board/atc/config.mk b/board/atc/config.mk index 8fc82f3f8b..eee7a60e3f 100644 --- a/board/atc/config.mk +++ b/board/atc/config.mk @@ -30,12 +30,7 @@ # in RAM where U-Boot is loaded at for debugging. # -ifeq ($(CONFIG_BOOT_ROM),y) - TEXT_BASE := 0xFF800000 - PLATFORM_CPPFLAGS += -DCONFIG_BOOT_ROM -else - TEXT_BASE := 0xFF000000 -endif +TEXT_BASE := 0xFF000000 # RAM version #TEXT_BASE := 0x100000 diff --git a/cpu/mpc8260/pci.c b/cpu/mpc8260/pci.c index 013d48a6e8..ac77c16832 100644 --- a/cpu/mpc8260/pci.c +++ b/cpu/mpc8260/pci.c @@ -252,7 +252,13 @@ void pci_mpc8250_init(struct pci_controller *hose) * Setting required to enable IRQ1-IRQ7 (SIUMCR [DPPC]), * and local bus for PCI (SIUMCR [LBPC]). */ - immap->im_siu_conf.sc_siumcr = 0x00640000; + immap->im_siu_conf.sc_siumcr = (immap->im_siu_conf.sc_siumcr & + ~SIUMCR_LBPC11 & + ~SIUMCR_CS10PC11 & + ~SIUMCR_LBPC11) | + SIUMCR_LBPC01 | + SIUMCR_CS10PC01 | + SIUMCR_LBPC01; #endif /* Make PCI lowest priority */ diff --git a/include/configs/atc.h b/include/configs/atc.h index 0e968b1d3d..68984965b9 100644 --- a/include/configs/atc.h +++ b/include/configs/atc.h @@ -129,7 +129,10 @@ CFG_CMD_EEPROM | \ CFG_CMD_PCI | \ CFG_CMD_PCMCIA | \ + CFG_CMD_DATE | \ CFG_CMD_IDE) + + #define CONFIG_DOS_PARTITION /* this must be included AFTER the definition of CONFIG_COMMANDS (if any) */ @@ -168,6 +171,14 @@ #define CONFIG_SPI +#define CONFIG_RTC_DS12887 + +#define RTC_BASE_ADDR 0x02800000 +#define RTC_PORT_ADDR RTC_BASE_ADDR + 0x800 +#define RTC_PORT_DATA RTC_BASE_ADDR + 0x808 + +#define CONFIG_MISC_INIT_R + /* * For booting Linux, the board info and command line data * have to be in the first 8 MB of memory, since this is @@ -179,8 +190,6 @@ * Flash configuration */ -#define CFG_BOOTROM_BASE 0xFF800000 -#define CFG_BOOTROM_SIZE 0x00080000 #define CFG_FLASH_BASE 0xFF000000 #define CFG_FLASH_SIZE 0x00800000 @@ -452,6 +461,13 @@ #define CFG_PSDMR CFG_PSDMR_8COL #endif /* CFG_RAMBOOT */ +#define CFG_BR4_PRELIM ((RTC_BASE_ADDR & BRx_BA_MSK) |\ + BRx_PS_8 |\ + BRx_MS_UPMA |\ + BRx_V) + +#define CFG_OR4_PRELIM (ORxU_AM_MSK | ORxU_BI) + /*----------------------------------------------------------------------- * PCMCIA stuff *----------------------------------------------------------------------- diff --git a/rtc/Makefile b/rtc/Makefile index 5e471a6fd6..c26a23239b 100644 --- a/rtc/Makefile +++ b/rtc/Makefile @@ -28,7 +28,8 @@ include $(TOPDIR)/config.mk LIB = librtc.a OBJS = date.o \ - ds1302.o ds1306.o ds1307.o ds1337.o ds1556.o ds164x.o ds174x.o \ + ds12887.o ds1302.o ds1306.o ds1307.o ds1337.o \ + ds1556.o ds164x.o ds174x.o \ m41t11.o m48t35ax.o mc146818.o mk48t59.o \ mpc8xx.o pcf8563.o diff --git a/rtc/ds12887.c b/rtc/ds12887.c new file mode 100644 index 0000000000..5d9c5dd139 --- /dev/null +++ b/rtc/ds12887.c @@ -0,0 +1,238 @@ +/* + * (C) Copyright 2003 + * + * 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 + */ + +/* + * Date & Time support for the DS12887 RTC + */ + +#undef RTC_DEBUG + +#include +#include +#include +#include + +#if defined(CONFIG_RTC_DS12887) && (CONFIG_COMMANDS & CFG_CMD_DATE) + +#define RTC_SECONDS 0x00 +#define RTC_SECONDS_ALARM 0x01 +#define RTC_MINUTES 0x02 +#define RTC_MINUTES_ALARM 0x03 +#define RTC_HOURS 0x04 +#define RTC_HOURS_ALARM 0x05 +#define RTC_DAY_OF_WEEK 0x06 +#define RTC_DATE_OF_MONTH 0x07 +#define RTC_MONTH 0x08 +#define RTC_YEAR 0x09 +#define RTC_CONTROL_A 0x0A +#define RTC_CONTROL_B 0x0B +#define RTC_CONTROL_C 0x0C +#define RTC_CONTROL_D 0x0D + +#define RTC_CA_UIP 0x80 +#define RTC_CB_DM 0x04 +#define RTC_CB_24_12 0x02 +#define RTC_CB_SET 0x80 + +#if defined(CONFIG_ATC) + +static uchar rtc_read (uchar reg) +{ + uchar val; + + *(volatile unsigned char*)(RTC_PORT_ADDR) = reg; + __asm__ __volatile__ ("sync"); + + val = *(volatile unsigned char*)(RTC_PORT_DATA); + return (val); +} + +static void rtc_write (uchar reg, uchar val) +{ + *(volatile unsigned char*)(RTC_PORT_ADDR) = reg; + __asm__ __volatile__ ("sync"); + + *(volatile unsigned char*)(RTC_PORT_DATA) = val; + __asm__ __volatile__ ("sync"); +} + +#else +# error Board specific rtc access functions should be supplied +#endif + +static unsigned bcd2bin (uchar n) +{ + return ((((n >> 4) & 0x0F) * 10) + (n & 0x0F)); +} + +static unsigned char bin2bcd (unsigned int n) +{ + return (((n / 10) << 4) | (n % 10)); +} + +/* ------------------------------------------------------------------------- */ + +void rtc_get (struct rtc_time *tmp) +{ + uchar sec, min, hour, mday, wday, mon, year; + + /* check if rtc is available for access */ + while( rtc_read(RTC_CONTROL_A) & RTC_CA_UIP) + ; + + sec = rtc_read(RTC_SECONDS); + min = rtc_read(RTC_MINUTES); + hour = rtc_read(RTC_HOURS); + mday = rtc_read(RTC_DATE_OF_MONTH); + wday = rtc_read(RTC_DAY_OF_WEEK); + mon = rtc_read(RTC_MONTH); + year = rtc_read(RTC_YEAR); + +#ifdef RTC_DEBUG + printf( "Get RTC year: %d; mon: %d; mday: %d; wday: %d; " + "hr: %d; min: %d; sec: %d\n", + year, mon, mday, wday, hour, min, sec ); + + printf ( "Alarms: hour: %02x min: %02x sec: %02x\n", + rtc_read (RTC_HOURS_ALARM), + rtc_read (RTC_MINUTES_ALARM), + rtc_read (RTC_SECONDS_ALARM) ); +#endif + + if( !(rtc_read(RTC_CONTROL_B) & RTC_CB_DM)) + { /* Information is in BCD format */ +printf(" Get: Convert BSD to BIN\n"); + tmp->tm_sec = bcd2bin (sec & 0x7F); + tmp->tm_min = bcd2bin (min & 0x7F); + tmp->tm_hour = bcd2bin (hour & 0x3F); + tmp->tm_mday = bcd2bin (mday & 0x3F); + tmp->tm_mon = bcd2bin (mon & 0x1F); + tmp->tm_year = bcd2bin (year); + tmp->tm_wday = bcd2bin (wday & 0x07); + } +else + { + tmp->tm_sec = sec & 0x7F; + tmp->tm_min = min & 0x7F; + tmp->tm_hour = hour & 0x3F; + tmp->tm_mday = mday & 0x3F; + tmp->tm_mon = mon & 0x1F; + tmp->tm_year = year; + tmp->tm_wday = wday & 0x07; + } + + + if(tmp->tm_year<70) + tmp->tm_year+=2000; + else + tmp->tm_year+=1900; + + tmp->tm_yday = 0; + tmp->tm_isdst= 0; +#ifdef RTC_DEBUG + printf ( "Get DATE: %4d-%02d-%02d (wday=%d) TIME: %2d:%02d:%02d\n", + tmp->tm_year, tmp->tm_mon, tmp->tm_mday, tmp->tm_wday, + tmp->tm_hour, tmp->tm_min, tmp->tm_sec); +#endif +} + +void rtc_set (struct rtc_time *tmp) +{ + uchar save_ctrl_b; + uchar sec, min, hour, mday, wday, mon, year; + +#ifdef RTC_DEBUG + printf ( "Set DATE: %4d-%02d-%02d (wday=%d) TIME: %2d:%02d:%02d\n", + tmp->tm_year, tmp->tm_mon, tmp->tm_mday, tmp->tm_wday, + tmp->tm_hour, tmp->tm_min, tmp->tm_sec); +#endif + + if( !(rtc_read(RTC_CONTROL_B) & RTC_CB_DM)) + { /* Information is in BCD format */ + year = bin2bcd(tmp->tm_year % 100); + mon = bin2bcd(tmp->tm_mon); + wday = bin2bcd(tmp->tm_wday); + mday = bin2bcd(tmp->tm_mday); + hour = bin2bcd(tmp->tm_hour); + min = bin2bcd(tmp->tm_min); + sec = bin2bcd(tmp->tm_sec); + } + else + { + year = tmp->tm_year % 100; + mon = tmp->tm_mon; + wday = tmp->tm_wday; + mday = tmp->tm_mday; + hour = tmp->tm_hour; + min = tmp->tm_min; + sec = tmp->tm_sec; + } + + /* disables the RTC to update the regs */ + save_ctrl_b = rtc_read(RTC_CONTROL_B); + save_ctrl_b |= RTC_CB_SET; + rtc_write(RTC_CONTROL_B, save_ctrl_b); + + rtc_write (RTC_YEAR, year); + rtc_write (RTC_MONTH, mon); + rtc_write (RTC_DAY_OF_WEEK, wday); + rtc_write (RTC_DATE_OF_MONTH, mday); + rtc_write (RTC_HOURS, hour); + rtc_write (RTC_MINUTES, min); + rtc_write (RTC_SECONDS, sec); + + /* enables the RTC to update the regs */ + save_ctrl_b &= ~RTC_CB_SET; + rtc_write(RTC_CONTROL_B, save_ctrl_b); +} + +void rtc_reset (void) +{ + struct rtc_time tmp; + uchar ctrl_rg; + + ctrl_rg = RTC_CB_SET; + rtc_write(RTC_CONTROL_B,ctrl_rg); + + tmp.tm_year = 1970 % 100; + tmp.tm_mon = 1; + tmp.tm_mday= 1; + tmp.tm_hour = 0; + tmp.tm_min = 0; + tmp.tm_sec = 0; + +#ifdef RTC_DEBUG + printf ( "RTC: %4d-%02d-%02d %2d:%02d:%02d UTC\n", + tmp.tm_year, tmp.tm_mon, tmp.tm_mday, + tmp.tm_hour, tmp.tm_min, tmp.tm_sec); +#endif + + ctrl_rg = RTC_CB_SET | RTC_CB_24_12 | RTC_CB_DM; + rtc_write(RTC_CONTROL_B,ctrl_rg); + rtc_set(&tmp); + + rtc_write(RTC_HOURS_ALARM, 0), + rtc_write(RTC_MINUTES_ALARM, 0), + rtc_write(RTC_SECONDS_ALARM, 0); + + ctrl_rg = RTC_CB_24_12 | RTC_CB_DM; + rtc_write(RTC_CONTROL_B,ctrl_rg); +} + +#endif /* (CONFIG_RTC_DS12887) && (CONFIG_COMMANDS & CFG_CMD_DATE) */ -- 2.30.2