diff options
Diffstat (limited to 'cpu/arm1136/mx31')
| -rw-r--r-- | cpu/arm1136/mx31/Makefile | 47 | ||||
| -rw-r--r-- | cpu/arm1136/mx31/devices.c | 56 | ||||
| -rw-r--r-- | cpu/arm1136/mx31/generic.c | 100 | ||||
| -rw-r--r-- | cpu/arm1136/mx31/timer.c | 170 |
4 files changed, 0 insertions, 373 deletions
diff --git a/cpu/arm1136/mx31/Makefile b/cpu/arm1136/mx31/Makefile deleted file mode 100644 index c8e18f7..0000000 --- a/cpu/arm1136/mx31/Makefile +++ /dev/null @@ -1,47 +0,0 @@ -# -# (C) Copyright 2000-2006 -# Wolfgang Denk, DENX Software Engineering, wd@denx.de. -# -# See file CREDITS for list of people who contributed to this -# project. -# -# 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 -# - -include $(TOPDIR)/config.mk - -LIB = $(obj)lib$(SOC).a - -COBJS += generic.o -COBJS += timer.o -COBJS += devices.o - -SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c) -OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS)) - -all: $(obj).depend $(LIB) - -$(LIB): $(OBJS) - $(AR) $(ARFLAGS) $@ $(OBJS) - -######################################################################### - -# defines $(obj).depend target -include $(SRCTREE)/rules.mk - -sinclude $(obj).depend - -######################################################################### diff --git a/cpu/arm1136/mx31/devices.c b/cpu/arm1136/mx31/devices.c deleted file mode 100644 index 1f4ca7e..0000000 --- a/cpu/arm1136/mx31/devices.c +++ /dev/null @@ -1,56 +0,0 @@ -/* - * - * (C) Copyright 2009 Magnus Lilja <lilja.magnus@gmail.com> - * - * (c) 2007 Pengutronix, Sascha Hauer <s.hauer@pengutronix.de> - * - * See file CREDITS for list of people who contributed to this - * project. - * - * 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 - */ - -#include <common.h> -#include <asm/arch/mx31-regs.h> -#include <asm/arch/mx31.h> - -#ifdef CONFIG_SYS_MX31_UART1 -void mx31_uart1_hw_init(void) -{ - /* setup pins for UART1 */ - mx31_gpio_mux(MUX_RXD1__UART1_RXD_MUX); - mx31_gpio_mux(MUX_TXD1__UART1_TXD_MUX); - mx31_gpio_mux(MUX_RTS1__UART1_RTS_B); - mx31_gpio_mux(MUX_CTS1__UART1_CTS_B); -} -#endif - -#ifdef CONFIG_MXC_SPI -void mx31_spi2_hw_init(void) -{ - /* SPI2 */ - mx31_gpio_mux(MUX_CSPI2_SS2__CSPI2_SS2_B); - mx31_gpio_mux(MUX_CSPI2_SCLK__CSPI2_CLK); - mx31_gpio_mux(MUX_CSPI2_SPI_RDY__CSPI2_DATAREADY_B); - mx31_gpio_mux(MUX_CSPI2_MOSI__CSPI2_MOSI); - mx31_gpio_mux(MUX_CSPI2_MISO__CSPI2_MISO); - mx31_gpio_mux(MUX_CSPI2_SS0__CSPI2_SS0_B); - mx31_gpio_mux(MUX_CSPI2_SS1__CSPI2_SS1_B); - - /* start SPI2 clock */ - __REG(CCM_CGR2) = __REG(CCM_CGR2) | (3 << 4); -} -#endif diff --git a/cpu/arm1136/mx31/generic.c b/cpu/arm1136/mx31/generic.c deleted file mode 100644 index 1415d6c..0000000 --- a/cpu/arm1136/mx31/generic.c +++ /dev/null @@ -1,100 +0,0 @@ -/* - * (C) Copyright 2007 - * Sascha Hauer, Pengutronix - * - * See file CREDITS for list of people who contributed to this - * project. - * - * 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 - */ - -#include <common.h> -#include <asm/arch/mx31-regs.h> - -static u32 mx31_decode_pll(u32 reg, u32 infreq) -{ - u32 mfi = (reg >> 10) & 0xf; - u32 mfn = reg & 0x3ff; - u32 mfd = (reg >> 16) & 0x3ff; - u32 pd = (reg >> 26) & 0xf; - - mfi = mfi <= 5 ? 5 : mfi; - mfd += 1; - pd += 1; - - return ((2 * (infreq >> 10) * (mfi * mfd + mfn)) / - (mfd * pd)) << 10; -} - -static u32 mx31_get_mpl_dpdgck_clk(void) -{ - u32 infreq; - - if ((__REG(CCM_CCMR) & CCMR_PRCS_MASK) == CCMR_FPM) - infreq = CONFIG_MX31_CLK32 * 1024; - else - infreq = CONFIG_MX31_HCLK_FREQ; - - return mx31_decode_pll(__REG(CCM_MPCTL), infreq); -} - -static u32 mx31_get_mcu_main_clk(void) -{ - /* For now we assume mpl_dpdgck_clk == mcu_main_clk - * which should be correct for most boards - */ - return mx31_get_mpl_dpdgck_clk(); -} - -u32 mx31_get_ipg_clk(void) -{ - u32 freq = mx31_get_mcu_main_clk(); - u32 pdr0 = __REG(CCM_PDR0); - - freq /= ((pdr0 >> 3) & 0x7) + 1; - freq /= ((pdr0 >> 6) & 0x3) + 1; - - return freq; -} - -void mx31_dump_clocks(void) -{ - u32 cpufreq = mx31_get_mcu_main_clk(); - printf("mx31 cpu clock: %dMHz\n",cpufreq / 1000000); - printf("ipg clock : %dHz\n", mx31_get_ipg_clk()); -} - -void mx31_gpio_mux(unsigned long mode) -{ - unsigned long reg, shift, tmp; - - reg = IOMUXC_BASE + (mode & 0x1fc); - shift = (~mode & 0x3) * 8; - - tmp = __REG(reg); - tmp &= ~(0xff << shift); - tmp |= ((mode >> IOMUX_MODE_POS) & 0xff) << shift; - __REG(reg) = tmp; -} - -#if defined(CONFIG_DISPLAY_CPUINFO) -int print_cpuinfo (void) -{ - printf("CPU: Freescale i.MX31 at %d MHz\n", - mx31_get_mcu_main_clk() / 1000000); - return 0; -} -#endif diff --git a/cpu/arm1136/mx31/timer.c b/cpu/arm1136/mx31/timer.c deleted file mode 100644 index 7972ba0..0000000 --- a/cpu/arm1136/mx31/timer.c +++ /dev/null @@ -1,170 +0,0 @@ -/* - * (C) Copyright 2007 - * Sascha Hauer, Pengutronix - * - * See file CREDITS for list of people who contributed to this - * project. - * - * 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 - */ - -#include <common.h> -#include <asm/arch/mx31-regs.h> -#include <div64.h> - -#define TIMER_BASE 0x53f90000 /* General purpose timer 1 */ - -/* General purpose timers registers */ -#define GPTCR __REG(TIMER_BASE) /* Control register */ -#define GPTPR __REG(TIMER_BASE + 0x4) /* Prescaler register */ -#define GPTSR __REG(TIMER_BASE + 0x8) /* Status register */ -#define GPTCNT __REG(TIMER_BASE + 0x24) /* Counter register */ - -/* General purpose timers bitfields */ -#define GPTCR_SWR (1 << 15) /* Software reset */ -#define GPTCR_FRR (1 << 9) /* Freerun / restart */ -#define GPTCR_CLKSOURCE_32 (4 << 6) /* Clock source */ -#define GPTCR_TEN 1 /* Timer enable */ - -static ulong timestamp; -static ulong lastinc; - -/* "time" is measured in 1 / CONFIG_SYS_HZ seconds, "tick" is internal timer period */ -#ifdef CONFIG_MX31_TIMER_HIGH_PRECISION -/* ~0.4% error - measured with stop-watch on 100s boot-delay */ -static inline unsigned long long tick_to_time(unsigned long long tick) -{ - tick *= CONFIG_SYS_HZ; - do_div(tick, CONFIG_MX31_CLK32); - return tick; -} - -static inline unsigned long long time_to_tick(unsigned long long time) -{ - time *= CONFIG_MX31_CLK32; - do_div(time, CONFIG_SYS_HZ); - return time; -} - -static inline unsigned long long us_to_tick(unsigned long long us) -{ - us = us * CONFIG_MX31_CLK32 + 999999; - do_div(us, 1000000); - return us; -} -#else -/* ~2% error */ -#define TICK_PER_TIME ((CONFIG_MX31_CLK32 + CONFIG_SYS_HZ / 2) / CONFIG_SYS_HZ) -#define US_PER_TICK (1000000 / CONFIG_MX31_CLK32) - -static inline unsigned long long tick_to_time(unsigned long long tick) -{ - do_div(tick, TICK_PER_TIME); - return tick; -} - -static inline unsigned long long time_to_tick(unsigned long long time) -{ - return time * TICK_PER_TIME; -} - -static inline unsigned long long us_to_tick(unsigned long long us) -{ - us += US_PER_TICK - 1; - do_div(us, US_PER_TICK); - return us; -} -#endif - -/* The 32768Hz 32-bit timer overruns in 131072 seconds */ -int timer_init (void) -{ - int i; - - /* setup GP Timer 1 */ - GPTCR = GPTCR_SWR; - for (i = 0; i < 100; i++) - GPTCR = 0; /* We have no udelay by now */ - GPTPR = 0; /* 32Khz */ - /* Freerun Mode, PERCLK1 input */ - GPTCR |= GPTCR_CLKSOURCE_32 | GPTCR_TEN; - - return 0; -} - -void reset_timer_masked (void) -{ - /* reset time */ - lastinc = GPTCNT; /* capture current incrementer value time */ - timestamp = 0; /* start "advancing" time stamp from 0 */ -} - -void reset_timer(void) -{ - reset_timer_masked(); -} - -unsigned long long get_ticks (void) -{ - ulong now = GPTCNT; /* current tick value */ - - if (now >= lastinc) /* normal mode (non roll) */ - /* move stamp forward with absolut diff ticks */ - timestamp += (now - lastinc); - else /* we have rollover of incrementer */ - timestamp += (0xFFFFFFFF - lastinc) + now; - lastinc = now; - return timestamp; -} - -ulong get_timer_masked (void) -{ - /* - * get_ticks() returns a long long (64 bit), it wraps in - * 2^64 / CONFIG_MX31_CLK32 = 2^64 / 2^15 = 2^49 ~ 5 * 10^14 (s) ~ - * 5 * 10^9 days... and get_ticks() * CONFIG_SYS_HZ wraps in - * 5 * 10^6 days - long enough. - */ - return tick_to_time(get_ticks()); -} - -ulong get_timer (ulong base) -{ - return get_timer_masked () - base; -} - -void set_timer (ulong t) -{ - timestamp = time_to_tick(t); -} - -/* delay x useconds AND perserve advance timstamp value */ -void __udelay (unsigned long usec) -{ - unsigned long long tmp; - ulong tmo; - - tmo = us_to_tick(usec); - tmp = get_ticks() + tmo; /* get current timestamp */ - - while (get_ticks() < tmp) /* loop till event */ - /*NOP*/; -} - -void reset_cpu (ulong addr) -{ - __REG16(WDOG_BASE) = 4; -} |