MX: set a common place to share code for Freescale i.MX

Up now only MX5 and MX6 can share code, because they have
a common source directory in cpu/armv7. Other not armv7
i.MX can profit of the same shared code. Move these files
into a directory accessible for all, similar to plat-mxc
in linux.

Signed-off-by: Stefano Babic <sbabic@denx.de>

7 files changed, 0 insertions, 672 deletions

diff --git a/arch/arm/cpu/armv7/imx-common/Makefile b/arch/arm/cpu/armv7/imx-common/Makefile
deleted file mode 100644
index 16fba8d..0000000
--- a/arch/arm/cpu/armv7/imx-common/Makefile
+++ /dev/null
@@ -1,50 +0,0 @@
-#
-# (C) Copyright 2000-2006
-# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
-#
-# (C) Copyright 2011 Freescale Semiconductor, Inc.
-#
-# 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     = $(obj)libimx-common.o
-
-COBJS-y	= iomux-v3.o timer.o cpu.o speed.o
-COBJS-$(CONFIG_I2C_MXC) += i2c.o
-COBJS-$(CONFIG_CMD_BMODE) += cmd_bmode.o
-COBJS	:= $(sort $(COBJS-y))
-
-SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
-OBJS	:= $(addprefix $(obj),$(SOBJS) $(COBJS))
-
-all:	$(obj).depend $(LIB)
-
-$(LIB):	$(OBJS)
-	$(call cmd_link_o_target, $(OBJS))
-
-#########################################################################
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################
diff --git a/arch/arm/cpu/armv7/imx-common/cmd_bmode.c b/arch/arm/cpu/armv7/imx-common/cmd_bmode.c
deleted file mode 100644
index 02fe72e..0000000
--- a/arch/arm/cpu/armv7/imx-common/cmd_bmode.c
+++ /dev/null
@@ -1,119 +0,0 @@
-/*
- * Copyright (C) 2012 Boundary Devices Inc.
- *
- * 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/errno.h>
-#include <asm/io.h>
-#include <asm/imx-common/boot_mode.h>
-#include <malloc.h>
-
-static const struct boot_mode *modes[2];
-
-static const struct boot_mode *search_modes(char *arg)
-{
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(modes); i++) {
-		const struct boot_mode *p = modes[i];
-		if (p) {
-			while (p->name) {
-				if (!strcmp(p->name, arg))
-					return p;
-				p++;
-			}
-		}
-	}
-	return NULL;
-}
-
-static int create_usage(char *dest)
-{
-	int i;
-	int size = 0;
-
-	for (i = 0; i < ARRAY_SIZE(modes); i++) {
-		const struct boot_mode *p = modes[i];
-		if (p) {
-			while (p->name) {
-				int len = strlen(p->name);
-				if (dest) {
-					memcpy(dest, p->name, len);
-					dest += len;
-					*dest++ = '|';
-				}
-				size += len + 1;
-				p++;
-			}
-		}
-	}
-	if (dest)
-		memcpy(dest - 1, " [noreset]", 11);	/* include trailing 0 */
-	size += 10;
-	return size;
-}
-
-static int do_boot_mode(cmd_tbl_t *cmdtp, int flag, int argc,
-		char * const argv[])
-{
-	const struct boot_mode *p;
-	int reset_requested = 1;
-
-	if (argc < 2)
-		return CMD_RET_USAGE;
-	p = search_modes(argv[1]);
-	if (!p)
-		return CMD_RET_USAGE;
-	if (argc == 3) {
-		if (strcmp(argv[2], "noreset"))
-			return CMD_RET_USAGE;
-		reset_requested = 0;
-	}
-
-	boot_mode_apply(p->cfg_val);
-	if (reset_requested && p->cfg_val)
-		do_reset(NULL, 0, 0, NULL);
-	return 0;
-}
-
-U_BOOT_CMD(
-	bmode, 3, 0, do_boot_mode,
-	NULL,
-	"");
-
-void add_board_boot_modes(const struct boot_mode *p)
-{
-	int size;
-	char *dest;
-
-	if (__u_boot_cmd_bmode.usage) {
-		free(__u_boot_cmd_bmode.usage);
-		__u_boot_cmd_bmode.usage = NULL;
-	}
-
-	modes[0] = p;
-	modes[1] = soc_boot_modes;
-	size = create_usage(NULL);
-	dest = malloc(size);
-	if (dest) {
-		create_usage(dest);
-		__u_boot_cmd_bmode.usage = dest;
-	}
-}
diff --git a/arch/arm/cpu/armv7/imx-common/cpu.c b/arch/arm/cpu/armv7/imx-common/cpu.c
deleted file mode 100644
index fa1d468..0000000
--- a/arch/arm/cpu/armv7/imx-common/cpu.c
+++ /dev/null
@@ -1,140 +0,0 @@
-/*
- * (C) Copyright 2007
- * Sascha Hauer, Pengutronix
- *
- * (C) Copyright 2009 Freescale Semiconductor, Inc.
- *
- * 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/errno.h>
-#include <asm/io.h>
-#include <asm/arch/imx-regs.h>
-#include <asm/arch/clock.h>
-#include <asm/arch/sys_proto.h>
-#include <asm/arch/crm_regs.h>
-
-#ifdef CONFIG_FSL_ESDHC
-#include <fsl_esdhc.h>
-#endif
-
-char *get_reset_cause(void)
-{
-	u32 cause;
-	struct src *src_regs = (struct src *)SRC_BASE_ADDR;
-
-	cause = readl(&src_regs->srsr);
-	writel(cause, &src_regs->srsr);
-
-	switch (cause) {
-	case 0x00001:
-	case 0x00011:
-		return "POR";
-	case 0x00004:
-		return "CSU";
-	case 0x00008:
-		return "IPP USER";
-	case 0x00010:
-		return "WDOG";
-	case 0x00020:
-		return "JTAG HIGH-Z";
-	case 0x00040:
-		return "JTAG SW";
-	case 0x10000:
-		return "WARM BOOT";
-	default:
-		return "unknown reset";
-	}
-}
-
-#if defined(CONFIG_DISPLAY_CPUINFO)
-
-static const char *get_imx_type(u32 imxtype)
-{
-	switch (imxtype) {
-	case 0x63:
-		return "6Q";	/* Quad-core version of the mx6 */
-	case 0x61:
-		return "6DS";	/* Dual/Solo version of the mx6 */
-	case 0x60:
-		return "6SL";	/* Solo-Lite version of the mx6 */
-	case 0x51:
-		return "51";
-	case 0x53:
-		return "53";
-	default:
-		return "??";
-	}
-}
-
-int print_cpuinfo(void)
-{
-	u32 cpurev;
-
-	cpurev = get_cpu_rev();
-
-	printf("CPU:   Freescale i.MX%s rev%d.%d at %d MHz\n",
-		get_imx_type((cpurev & 0xFF000) >> 12),
-		(cpurev & 0x000F0) >> 4,
-		(cpurev & 0x0000F) >> 0,
-		mxc_get_clock(MXC_ARM_CLK) / 1000000);
-	printf("Reset cause: %s\n", get_reset_cause());
-	return 0;
-}
-#endif
-
-int cpu_eth_init(bd_t *bis)
-{
-	int rc = -ENODEV;
-
-#if defined(CONFIG_FEC_MXC)
-	rc = fecmxc_initialize(bis);
-#endif
-
-	return rc;
-}
-
-#ifdef CONFIG_FSL_ESDHC
-/*
- * Initializes on-chip MMC controllers.
- * to override, implement board_mmc_init()
- */
-int cpu_mmc_init(bd_t *bis)
-{
-	return fsl_esdhc_mmc_init(bis);
-}
-#endif
-
-void reset_cpu(ulong addr)
-{
-	__raw_writew(4, WDOG1_BASE_ADDR);
-}
-
-u32 get_ahb_clk(void)
-{
-	struct mxc_ccm_reg *imx_ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
-	u32 reg, ahb_podf;
-
-	reg = __raw_readl(&imx_ccm->cbcdr);
-	reg &= MXC_CCM_CBCDR_AHB_PODF_MASK;
-	ahb_podf = reg >> MXC_CCM_CBCDR_AHB_PODF_OFFSET;
-
-	return get_periph_clk() / (ahb_podf + 1);
-}
diff --git a/arch/arm/cpu/armv7/imx-common/i2c.c b/arch/arm/cpu/armv7/imx-common/i2c.c
deleted file mode 100644
index da2b26f..0000000
--- a/arch/arm/cpu/armv7/imx-common/i2c.c
+++ /dev/null
@@ -1,99 +0,0 @@
-/*
- * Copyright (C) 2012 Boundary Devices Inc.
- *
- * 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/clock.h>
-#include <asm/arch/imx-regs.h>
-#include <asm/errno.h>
-#include <asm/gpio.h>
-#include <asm/imx-common/mxc_i2c.h>
-#include <watchdog.h>
-
-static int force_idle_bus(void *priv)
-{
-	int i;
-	int sda, scl;
-	ulong elapsed, start_time;
-	struct i2c_pads_info *p = (struct i2c_pads_info *)priv;
-	int ret = 0;
-
-	gpio_direction_input(p->sda.gp);
-	gpio_direction_input(p->scl.gp);
-
-	imx_iomux_v3_setup_pad(p->sda.gpio_mode);
-	imx_iomux_v3_setup_pad(p->scl.gpio_mode);
-
-	sda = gpio_get_value(p->sda.gp);
-	scl = gpio_get_value(p->scl.gp);
-	if ((sda & scl) == 1)
-		goto exit;		/* Bus is idle already */
-
-	printf("%s: sda=%d scl=%d sda.gp=0x%x scl.gp=0x%x\n", __func__,
-		sda, scl, p->sda.gp, p->scl.gp);
-	/* Send high and low on the SCL line */
-	for (i = 0; i < 9; i++) {
-		gpio_direction_output(p->scl.gp, 0);
-		udelay(50);
-		gpio_direction_input(p->scl.gp);
-		udelay(50);
-	}
-	start_time = get_timer(0);
-	for (;;) {
-		sda = gpio_get_value(p->sda.gp);
-		scl = gpio_get_value(p->scl.gp);
-		if ((sda & scl) == 1)
-			break;
-		WATCHDOG_RESET();
-		elapsed = get_timer(start_time);
-		if (elapsed > (CONFIG_SYS_HZ / 5)) {	/* .2 seconds */
-			ret = -EBUSY;
-			printf("%s: failed to clear bus, sda=%d scl=%d\n",
-					__func__, sda, scl);
-			break;
-		}
-	}
-exit:
-	imx_iomux_v3_setup_pad(p->sda.i2c_mode);
-	imx_iomux_v3_setup_pad(p->scl.i2c_mode);
-	return ret;
-}
-
-static void * const i2c_bases[] = {
-	(void *)I2C1_BASE_ADDR,
-	(void *)I2C2_BASE_ADDR,
-#ifdef I2C3_BASE_ADDR
-	(void *)I2C3_BASE_ADDR,
-#endif
-};
-
-/* i2c_index can be from 0 - 2 */
-void setup_i2c(unsigned i2c_index, int speed, int slave_addr,
-		struct i2c_pads_info *p)
-{
-	if (i2c_index >= ARRAY_SIZE(i2c_bases))
-		return;
-	/* Enable i2c clock */
-	enable_i2c_clk(1, i2c_index);
-	/* Make sure bus is idle */
-	force_idle_bus(p);
-	bus_i2c_init(i2c_bases[i2c_index], speed, slave_addr,
-			force_idle_bus, p);
-}
diff --git a/arch/arm/cpu/armv7/imx-common/iomux-v3.c b/arch/arm/cpu/armv7/imx-common/iomux-v3.c
deleted file mode 100644
index da093fb..0000000
--- a/arch/arm/cpu/armv7/imx-common/iomux-v3.c
+++ /dev/null
@@ -1,70 +0,0 @@
-/*
- * Based on the iomux-v3.c from Linux kernel:
- * Copyright (C) 2008 by Sascha Hauer <kernel@pengutronix.de>
- * Copyright (C) 2009 by Jan Weitzel Phytec Messtechnik GmbH,
- *                       <armlinux@phytec.de>
- *
- * Copyright (C) 2004-2011 Freescale Semiconductor, Inc.
- *
- * 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., 51 Franklin Street, Fifth Floor, Boston,
- * MA 02110-1301, USA.
- */
-#include <common.h>
-#include <asm/io.h>
-#include <asm/arch/imx-regs.h>
-#include <asm/imx-common/iomux-v3.h>
-
-static void *base = (void *)IOMUXC_BASE_ADDR;
-
-/*
- * configures a single pad in the iomuxer
- */
-int imx_iomux_v3_setup_pad(iomux_v3_cfg_t pad)
-{
-	u32 mux_ctrl_ofs = (pad & MUX_CTRL_OFS_MASK) >> MUX_CTRL_OFS_SHIFT;
-	u32 mux_mode = (pad & MUX_MODE_MASK) >> MUX_MODE_SHIFT;
-	u32 sel_input_ofs =
-		(pad & MUX_SEL_INPUT_OFS_MASK) >> MUX_SEL_INPUT_OFS_SHIFT;
-	u32 sel_input =
-		(pad & MUX_SEL_INPUT_MASK) >> MUX_SEL_INPUT_SHIFT;
-	u32 pad_ctrl_ofs =
-		(pad & MUX_PAD_CTRL_OFS_MASK) >> MUX_PAD_CTRL_OFS_SHIFT;
-	u32 pad_ctrl = (pad & MUX_PAD_CTRL_MASK) >> MUX_PAD_CTRL_SHIFT;
-
-	if (mux_ctrl_ofs)
-		__raw_writel(mux_mode, base + mux_ctrl_ofs);
-
-	if (sel_input_ofs)
-		__raw_writel(sel_input, base + sel_input_ofs);
-
-	if (!(pad_ctrl & NO_PAD_CTRL) && pad_ctrl_ofs)
-		__raw_writel(pad_ctrl, base + pad_ctrl_ofs);
-
-	return 0;
-}
-
-int imx_iomux_v3_setup_multiple_pads(iomux_v3_cfg_t *pad_list, unsigned count)
-{
-	iomux_v3_cfg_t *p = pad_list;
-	int i;
-	int ret;
-
-	for (i = 0; i < count; i++) {
-		ret = imx_iomux_v3_setup_pad(*p);
-		if (ret)
-			return ret;
-		p++;
-	}
-	return 0;
-}
diff --git a/arch/arm/cpu/armv7/imx-common/speed.c b/arch/arm/cpu/armv7/imx-common/speed.c
deleted file mode 100644
index 80989c4..0000000
--- a/arch/arm/cpu/armv7/imx-common/speed.c
+++ /dev/null
@@ -1,45 +0,0 @@
-/*
- * (C) Copyright 2000-2003
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * Copyright (C) 2004-2007 Freescale Semiconductor, Inc.
- * TsiChung Liew (Tsi-Chung.Liew@freescale.com)
- *
- * 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/imx-regs.h>
-#include <asm/arch/clock.h>
-
-#ifdef CONFIG_FSL_ESDHC
-DECLARE_GLOBAL_DATA_PTR;
-#endif
-
-int get_clocks(void)
-{
-#ifdef CONFIG_FSL_ESDHC
-#ifdef CONFIG_FSL_USDHC
-	gd->sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK);
-#else
-	gd->sdhc_clk = mxc_get_clock(MXC_IPG_PERCLK);
-#endif
-#endif
-	return 0;
-}
diff --git a/arch/arm/cpu/armv7/imx-common/timer.c b/arch/arm/cpu/armv7/imx-common/timer.c
deleted file mode 100644
index e2725e1..0000000
--- a/arch/arm/cpu/armv7/imx-common/timer.c
+++ /dev/null
@@ -1,149 +0,0 @@
-/*
- * (C) Copyright 2007
- * Sascha Hauer, Pengutronix
- *
- * (C) Copyright 2009 Freescale Semiconductor, Inc.
- *
- * 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/io.h>
-#include <div64.h>
-#include <asm/arch/imx-regs.h>
-
-/* General purpose timers registers */
-struct mxc_gpt {
-	unsigned int control;
-	unsigned int prescaler;
-	unsigned int status;
-	unsigned int nouse[6];
-	unsigned int counter;
-};
-
-static struct mxc_gpt *cur_gpt = (struct mxc_gpt *)GPT1_BASE_ADDR;
-
-/* 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 */
-#define CLK_32KHZ		32768		/* 32Khz input */
-
-DECLARE_GLOBAL_DATA_PTR;
-
-#define timestamp (gd->tbl)
-#define lastinc (gd->lastinc)
-
-static inline unsigned long long tick_to_time(unsigned long long tick)
-{
-	tick *= CONFIG_SYS_HZ;
-	do_div(tick, CLK_32KHZ);
-
-	return tick;
-}
-
-static inline unsigned long long us_to_tick(unsigned long long usec)
-{
-	usec = usec * CLK_32KHZ + 999999;
-	do_div(usec, 1000000);
-
-	return usec;
-}
-
-int timer_init(void)
-{
-	int i;
-	ulong val;
-
-	/* setup GP Timer 1 */
-	__raw_writel(GPTCR_SWR, &cur_gpt->control);
-
-	/* We have no udelay by now */
-	for (i = 0; i < 100; i++)
-		__raw_writel(0, &cur_gpt->control);
-
-	__raw_writel(0, &cur_gpt->prescaler); /* 32Khz */
-
-	/* Freerun Mode, PERCLK1 input */
-	i = __raw_readl(&cur_gpt->control);
-	__raw_writel(i | GPTCR_CLKSOURCE_32 | GPTCR_TEN, &cur_gpt->control);
-
-	val = __raw_readl(&cur_gpt->counter);
-	lastinc = val / (CLK_32KHZ / CONFIG_SYS_HZ);
-	timestamp = 0;
-
-	return 0;
-}
-
-unsigned long long get_ticks(void)
-{
-	ulong now = __raw_readl(&cur_gpt->counter); /* 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_MX25_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;
-}
-
-/* delay x useconds AND preserve 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*/;
-}
-
-/*
- * This function is derived from PowerPC code (timebase clock frequency).
- * On ARM it returns the number of timer ticks per second.
- */
-ulong get_tbclk(void)
-{
-	return CLK_32KHZ;
-}