i.mx: introduce the armv7/imx-common folder

In order to support the coming MX6 platform and to reducde
the duplicated code, we had better move some common files
or functions to the imx-common folder for sharing.

This patch does the following:
- move speed.c file from armv7/mx5/speed.c to armv7/imx-common/speed.c
- move armv7/mx5/timer.c to armv7/imx-common/timer.c, no any new feature
  added but just fix the checkpatch errors in the old file and remove
  the CONFIG_SYS_MX5_CLK32 reference in the file
- create one new file cpu.c file to store the common function with i.mx5/6

Signed-off-by: Jason Liu <jason.hui@linaro.org>
Cc:Stefano Babic <sbabic@denx.de>
Acked-by: Stefano Babic <sbabic@denx.de>

4 files changed, 1 insertions, 228 deletions

diff --git a/arch/arm/cpu/armv7/mx5/Makefile b/arch/arm/cpu/armv7/mx5/Makefile
index e8be9c9fab..ecd1184213 100644
--- a/arch/arm/cpu/armv7/mx5/Makefile
+++ b/arch/arm/cpu/armv7/mx5/Makefile
@@ -27,7 +27,7 @@ include $(TOPDIR)/config.mk
 
 LIB	= $(obj)lib$(SOC).o
 
-COBJS	= soc.o clock.o iomux.o timer.o speed.o
+COBJS	= soc.o clock.o iomux.o
 SOBJS = lowlevel_init.o
 
 SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
diff --git a/arch/arm/cpu/armv7/mx5/soc.c b/arch/arm/cpu/armv7/mx5/soc.c
index cf12ba88f4..1533dd8722 100644
--- a/arch/arm/cpu/armv7/mx5/soc.c
+++ b/arch/arm/cpu/armv7/mx5/soc.c
@@ -31,10 +31,6 @@
 #include <asm/errno.h>
 #include <asm/io.h>
 
-#ifdef CONFIG_FSL_ESDHC
-#include <fsl_esdhc.h>
-#endif
-
 #if !(defined(CONFIG_MX51) || defined(CONFIG_MX53))
 #error "CPU_TYPE not defined"
 #endif
@@ -75,61 +71,6 @@ u32 get_cpu_rev(void)
 	return system_rev;
 }
 
-static 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:
-		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)
-int print_cpuinfo(void)
-{
-	u32 cpurev;
-
-	cpurev = get_cpu_rev();
-	printf("CPU:   Freescale i.MX%x family rev%d.%d at %d MHz\n",
-		(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;
-}
-
 #if defined(CONFIG_FEC_MXC)
 void imx_get_mac_from_fuse(unsigned char *mac)
 {
@@ -144,19 +85,6 @@ void imx_get_mac_from_fuse(unsigned char *mac)
 }
 #endif
 
-/*
- * Initializes on-chip MMC controllers.
- * to override, implement board_mmc_init()
- */
-int cpu_mmc_init(bd_t *bis)
-{
-#ifdef CONFIG_FSL_ESDHC
-	return fsl_esdhc_mmc_init(bis);
-#else
-	return 0;
-#endif
-}
-
 void set_chipselect_size(int const cs_size)
 {
 	unsigned int reg;
@@ -187,8 +115,3 @@ void set_chipselect_size(int const cs_size)
 
 	writel(reg, &iomuxc_regs->gpr1);
 }
-
-void reset_cpu(ulong addr)
-{
-	__raw_writew(4, WDOG1_BASE_ADDR);
-}
diff --git a/arch/arm/cpu/armv7/mx5/speed.c b/arch/arm/cpu/armv7/mx5/speed.c
deleted file mode 100644
index 2187e8ee5d..0000000000
--- a/arch/arm/cpu/armv7/mx5/speed.c
+++ /dev/null
@@ -1,41 +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
-	gd->sdhc_clk = mxc_get_clock(MXC_IPG_PERCLK);
-#endif
-	return 0;
-}
diff --git a/arch/arm/cpu/armv7/mx5/timer.c b/arch/arm/cpu/armv7/mx5/timer.c
deleted file mode 100644
index 2544b08761..0000000000
--- a/arch/arm/cpu/armv7/mx5/timer.c
+++ /dev/null
@@ -1,109 +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 <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 */
-
-DECLARE_GLOBAL_DATA_PTR;
-
-#define timestamp (gd->tbl)
-#define lastinc (gd->lastinc)
-
-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 / (CONFIG_SYS_MX5_CLK32 / CONFIG_SYS_HZ);
-	timestamp = 0;
-
-	return 0;
-}
-
-ulong get_timer_masked(void)
-{
-	ulong val = __raw_readl(&cur_gpt->counter);
-	val /= (CONFIG_SYS_MX5_CLK32 / CONFIG_SYS_HZ);
-	if (val >= lastinc)
-		timestamp += (val - lastinc);
-	else
-		timestamp += ((0xFFFFFFFF / (CONFIG_SYS_MX5_CLK32 / CONFIG_SYS_HZ))
-				- lastinc) + val;
-	lastinc = val;
-	return timestamp;
-}
-
-ulong get_timer(ulong base)
-{
-	return get_timer_masked() - base;
-}
-
-/* delay x useconds AND preserve advance timestamp value */
-void __udelay(unsigned long usec)
-{
-	unsigned long now, start, tmo;
-	tmo = usec * (CONFIG_SYS_MX5_CLK32 / 1000) / 1000;
-
-	if (!tmo)
-		tmo = 1;
-
-	now = start = readl(&cur_gpt->counter);
-
-	while ((now - start) < tmo)
-		now = readl(&cur_gpt->counter);
-
-}