[U-Boot] [PATCH V3 1/5] i.mx: introduce the armv7/imx-common folder
Jason Liu
jason.hui at linaro.org
Fri Nov 25 11:18:01 CET 2011
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 at linaro.org>
Cc:Stefano Babic <sbabic at denx.de>
Acked-by: Stefano Babic <sbabic at denx.de>
---
V2:extend the commit message to reflect all the changes in the patch
rename cpu_info.c to cpu.c file under imx-common as Stefano comments
---
Makefile | 8 ++
arch/arm/cpu/armv7/imx-common/Makefile | 47 ++++++++++
arch/arm/cpu/armv7/imx-common/cpu.c | 108 ++++++++++++++++++++++++
arch/arm/cpu/armv7/{mx5 => imx-common}/speed.c | 0
arch/arm/cpu/armv7/{mx5 => imx-common}/timer.c | 17 ++--
arch/arm/cpu/armv7/mx5/Makefile | 2 +-
arch/arm/cpu/armv7/mx5/soc.c | 77 -----------------
7 files changed, 173 insertions(+), 86 deletions(-)
diff --git a/Makefile b/Makefile
index d84b350..977da65 100644
--- a/Makefile
+++ b/Makefile
@@ -293,6 +293,14 @@ LIBS += post/libpost.o
ifneq ($(CONFIG_AM335X)$(CONFIG_OMAP34XX)$(CONFIG_OMAP44XX)$(CONFIG_OMAP54XX),)
LIBS += $(CPUDIR)/omap-common/libomap-common.o
endif
+
+ifeq ($(SOC),mx5)
+LIBS += $(CPUDIR)/imx-common/libimx-common.o
+endif
+ifeq ($(SOC),mx6)
+LIBS += $(CPUDIR)/imx-common/libimx-common.o
+endif
+
ifeq ($(SOC),s5pc1xx)
LIBS += $(CPUDIR)/s5p-common/libs5p-common.o
endif
diff --git a/arch/arm/cpu/armv7/imx-common/Makefile b/arch/arm/cpu/armv7/imx-common/Makefile
new file mode 100644
index 0000000..e5ff375
--- /dev/null
+++ b/arch/arm/cpu/armv7/imx-common/Makefile
@@ -0,0 +1,47 @@
+#
+# (C) Copyright 2000-2006
+# Wolfgang Denk, DENX Software Engineering, wd at 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 = timer.o cpu.o speed.o
+
+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/cpu.c b/arch/arm/cpu/armv7/imx-common/cpu.c
new file mode 100644
index 0000000..1e30ae5
--- /dev/null
+++ b/arch/arm/cpu/armv7/imx-common/cpu.c
@@ -0,0 +1,108 @@
+/*
+ * (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>
+
+#ifdef CONFIG_FSL_ESDHC
+#include <fsl_esdhc.h>
+#endif
+
+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;
+}
+
+/*
+ * 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 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/imx-common/speed.c
similarity index 100%
rename from arch/arm/cpu/armv7/mx5/speed.c
rename to arch/arm/cpu/armv7/imx-common/speed.c
diff --git a/arch/arm/cpu/armv7/mx5/timer.c b/arch/arm/cpu/armv7/imx-common/timer.c
old mode 100644
new mode 100755
similarity index 84%
rename from arch/arm/cpu/armv7/mx5/timer.c
rename to arch/arm/cpu/armv7/imx-common/timer.c
index 2544b08..98e9f4a
--- a/arch/arm/cpu/armv7/mx5/timer.c
+++ b/arch/arm/cpu/armv7/imx-common/timer.c
@@ -39,10 +39,11 @@ struct mxc_gpt {
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 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;
@@ -68,7 +69,7 @@ int timer_init(void)
__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);
+ lastinc = val / (CLK_32KHZ / CONFIG_SYS_HZ);
timestamp = 0;
return 0;
@@ -77,11 +78,11 @@ int timer_init(void)
ulong get_timer_masked(void)
{
ulong val = __raw_readl(&cur_gpt->counter);
- val /= (CONFIG_SYS_MX5_CLK32 / CONFIG_SYS_HZ);
+ val /= (CLK_32KHZ / CONFIG_SYS_HZ);
if (val >= lastinc)
timestamp += (val - lastinc);
else
- timestamp += ((0xFFFFFFFF / (CONFIG_SYS_MX5_CLK32 / CONFIG_SYS_HZ))
+ timestamp += ((0xFFFFFFFF / (CLK_32KHZ / CONFIG_SYS_HZ))
- lastinc) + val;
lastinc = val;
return timestamp;
@@ -96,7 +97,7 @@ ulong get_timer(ulong base)
void __udelay(unsigned long usec)
{
unsigned long now, start, tmo;
- tmo = usec * (CONFIG_SYS_MX5_CLK32 / 1000) / 1000;
+ tmo = usec * (CLK_32KHZ / 1000) / 1000;
if (!tmo)
tmo = 1;
diff --git a/arch/arm/cpu/armv7/mx5/Makefile b/arch/arm/cpu/armv7/mx5/Makefile
index e8be9c9..ecd1184 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 cf12ba8..1533dd8 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);
-}
--
1.7.4.1
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