S3C2412: move io-init to SoC specific files
From: Heiko Stuebner <heiko@...> Date: Fri, 6 Jan 2012 09:58:01 +0100
Commit-Message
Introduce common.c to replace calls to s3c24xx_init_io and make the s3c2412.h header obsolete. Signed-off-by: Heiko Stuebner <heiko@...>
Patch-Comment
arch/arm/mach-s3c2412/Makefile | 2 +- arch/arm/mach-s3c2412/clock.c | 3 +- arch/arm/mach-s3c2412/common.c | 79 ++++++++++++++++++++++++++ arch/arm/mach-s3c2412/common.h | 30 ++++++++++ arch/arm/mach-s3c2412/mach-jive.c | 5 +- arch/arm/mach-s3c2412/mach-smdk2413.c | 6 +- arch/arm/mach-s3c2412/mach-vstms.c | 5 +- arch/arm/mach-s3c2412/pm.c | 2 +- arch/arm/mach-s3c2412/s3c2412.c | 3 +- arch/arm/plat-s3c24xx/cpu.c | 35 +----------- arch/arm/plat-samsung/include/plat/s3c2412.h | 32 ---------- 11 files changed, 124 insertions(+), 78 deletions(-) create mode 100644 arch/arm/mach-s3c2412/common.c create mode 100644 arch/arm/mach-s3c2412/common.h delete mode 100644 arch/arm/plat-samsung/include/plat/s3c2412.h
Statistics
- 124 lines added
- 78 lines removed
Changes
------------------------ arch/arm/mach-s3c2412/Makefile ------------------------
index 7e4d95f..7296d57 100644
@@ -9,7 +9,7 @@ obj-m :=
obj-n :=
obj- :=
+obj-$(CONFIG_CPU_S3C2412) += s3c2412.o common.o
obj-$(CONFIG_CPU_S3C2412) += irq.o
obj-$(CONFIG_CPU_S3C2412) += clock.o
obj-$(CONFIG_S3C2412_DMA) += dma.o
------------------------ arch/arm/mach-s3c2412/clock.c -------------------------
index cd50291..27abe7e 100644
@@ -41,10 +41,11 @@
#include <mach/regs-clock.h>
#include <mach/regs-gpio.h>
#include <plat/clock.h>
#include <plat/cpu.h>
+#include "common.h"
+
/* We currently have to assume that the system is running
* from the XTPll input, and that all ***REFCLKs are being
* fed from it, as we cannot read the state of OM[4] from
------------------------ arch/arm/mach-s3c2412/common.c ------------------------
new file mode 100644
index 0000000..407a7f6
@@ -0,0 +1,79 @@
+/*
+ * S3C2412 CPU Support
+ *
+ * Copyright (c) 2004-2005 Simtec Electronics
+ * http://www.simtec.co.uk/products/SWLINUX/
+ * Ben Dooks <ben@simtec.co.uk>
+ *
+ * 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 <linux/init.h>
+#include <linux/module.h>
+
+#include <asm/mach/map.h>
+
+#include <plat/cpu.h>
+
+#include <mach/map.h>
+#include <mach/regs-gpio.h>
+
+#include "common.h"
+
+/* table of supported CPUs */
+
+static const char name_s3c2412[] = "S3C2412";
+
+static struct cpu_table cpu_ids[] __initdata = {
+ {
+ .idcode = 0x32412001,
+ .idmask = 0xffffffff,
+ .map_io = s3c2412_map_io,
+ .init_clocks = s3c2412_init_clocks,
+ .init_uarts = s3c2412_init_uarts,
+ .init = s3c2412_init,
+ .name = name_s3c2412,
+ },
+ { /* a newer version of the s3c2412 */
+ .idcode = 0x32412003,
+ .idmask = 0xffffffff,
+ .map_io = s3c2412_map_io,
+ .init_clocks = s3c2412_init_clocks,
+ .init_uarts = s3c2412_init_uarts,
+ .init = s3c2412_init,
+ .name = name_s3c2412,
+ },
+};
+
+/* minimal IO mapping */
+
+static struct map_desc s3c_iodesc[] __initdata = {
+ IODESC_ENT(GPIO),
+ IODESC_ENT(IRQ),
+ IODESC_ENT(MEMCTRL),
+ IODESC_ENT(UART)
+};
+
+void __init s3c2412_init_io(struct map_desc *mach_desc, int size)
+{
+ /* initialise the io descriptors we need for initialisation */
+ iotable_init(mach_desc, size);
+ iotable_init(s3c_iodesc, ARRAY_SIZE(s3c_iodesc));
+
+ samsung_cpu_id = __raw_readl(S3C2412_GSTATUS1);
+ s3c24xx_init_cpu();
+
+ s3c_init_cpu(samsung_cpu_id, cpu_ids, ARRAY_SIZE(cpu_ids));
+}
------------------------ arch/arm/mach-s3c2412/common.h ------------------------
new file mode 100644
index 0000000..f5cb187
@@ -0,0 +1,30 @@
+/* linux/arch/arm/plat-samsung/include/plat/s3c2412.h
+ *
+ * Copyright (c) 2006 Simtec Electronics
+ * Ben Dooks <ben@simtec.co.uk>
+ *
+ * Header file for s3c2412 cpu support
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#ifndef __ARCH_ARM_MACH_S3C2412_COMMON_H
+#define __ARCH_ARM_MACH_S3C2412_COMMON_H
+
+extern int s3c2412_init(void);
+
+extern void s3c2412_map_io(void);
+
+extern void s3c2412_init_uarts(struct s3c2410_uartcfg *cfg, int no);
+
+extern void s3c2412_init_clocks(int xtal);
+
+extern int s3c2412_baseclk_add(void);
+
+extern void s3c2412_restart(char mode, const char *cmd);
+
+extern void s3c2412_init_io(struct map_desc *mach_desc, int size);
+
+#endif
---------------------- arch/arm/mach-s3c2412/mach-jive.c -----------------------
index ae73ba3..0365420 100644
@@ -48,7 +48,6 @@
#include <linux/mtd/nand_ecc.h>
#include <linux/mtd/partitions.h>
#include <plat/gpio-cfg.h>
#include <plat/clock.h>
#include <plat/devs.h>
@@ -56,6 +55,8 @@
#include <plat/pm.h>
#include <plat/udc.h>
+#include "common.h"
+
static struct map_desc jive_iodesc[] __initdata = {
};
@@ -503,7 +504,7 @@ static struct syscore_ops jive_pm_syscore_ops = {
static void __init jive_map_io(void)
{
+ s3c2412_init_io(jive_iodesc, ARRAY_SIZE(jive_iodesc));
s3c24xx_init_clocks(12000000);
s3c24xx_init_uarts(jive_uartcfgs, ARRAY_SIZE(jive_uartcfgs));
}
-------------------- arch/arm/mach-s3c2412/mach-smdk2413.c ---------------------
index b11451b..2215ace 100644
@@ -42,14 +42,14 @@
#include <plat/iic.h>
#include <mach/fb.h>
#include <plat/clock.h>
#include <plat/devs.h>
#include <plat/cpu.h>
#include <plat/common-smdk.h>
+#include "common.h"
+
static struct map_desc smdk2413_iodesc[] __initdata = {
};
@@ -104,7 +104,7 @@ static void __init smdk2413_fixup(struct tag *tags, char **cmdline,
static void __init smdk2413_map_io(void)
{
+ s3c2412_init_io(smdk2413_iodesc, ARRAY_SIZE(smdk2413_iodesc));
s3c24xx_init_clocks(12000000);
s3c24xx_init_uarts(smdk2413_uartcfgs, ARRAY_SIZE(smdk2413_uartcfgs));
}
---------------------- arch/arm/mach-s3c2412/mach-vstms.c ----------------------
index 94bfaa1..b3110eb 100644
@@ -42,12 +42,11 @@
#include <plat/iic.h>
#include <plat/nand.h>
#include <plat/clock.h>
#include <plat/devs.h>
#include <plat/cpu.h>
+#include "common.h"
static struct map_desc vstms_iodesc[] __initdata = {
};
@@ -141,7 +140,7 @@ static void __init vstms_fixup(struct tag *tags, char **cmdline,
static void __init vstms_map_io(void)
{
+ s3c2412_init_io(vstms_iodesc, ARRAY_SIZE(vstms_iodesc));
s3c24xx_init_clocks(12000000);
s3c24xx_init_uarts(vstms_uartcfgs, ARRAY_SIZE(vstms_uartcfgs));
}
-------------------------- arch/arm/mach-s3c2412/pm.c --------------------------
index f4077ef..2c7e682 100644
@@ -33,7 +33,7 @@
#include <plat/cpu.h>
#include <plat/pm.h>
+#include "common.h"
extern void s3c2412_sleep_enter(void);
----------------------- arch/arm/mach-s3c2412/s3c2412.c ------------------------
index 867ce2e..83ab5bc 100644
@@ -45,7 +45,6 @@
#include <plat/regs-spi.h>
#include <mach/regs-s3c2412.h>
#include <plat/cpu.h>
#include <plat/devs.h>
#include <plat/clock.h>
@@ -53,6 +52,8 @@
#include <plat/pll.h>
#include <plat/nand-core.h>
+#include "common.h"
+
#ifndef CONFIG_CPU_S3C2412_ONLY
void __iomem *s3c24xx_va_gpio2 = S3C24XX_VA_GPIO;
------------------------- arch/arm/plat-s3c24xx/cpu.c --------------------------
index f91727f..1801aab 100644
@@ -46,12 +46,10 @@
#include <plat/devs.h>
#include <plat/clock.h>
#include <plat/s3c2410.h>
/* table of supported CPUs */
static const char name_s3c2410[] = "S3C2410";
static const char name_s3c2410a[] = "S3C2410A";
static struct cpu_table cpu_ids[] __initdata = {
@@ -73,24 +71,6 @@ static struct cpu_table cpu_ids[] __initdata = {
.init = s3c2410a_init,
.name = name_s3c2410a
},
};
/* minimal IO mapping */
@@ -104,15 +84,6 @@ static struct map_desc s3c_iodesc[] __initdata = {
/* read cpu identificaiton code */
static unsigned long s3c24xx_read_idcode_v4(void)
{
return __raw_readl(S3C2410_GSTATUS1);
@@ -124,11 +95,7 @@ void __init s3c24xx_init_io(struct map_desc *mach_desc, int size)
iotable_init(mach_desc, size);
iotable_init(s3c_iodesc, ARRAY_SIZE(s3c_iodesc));
+ samsung_cpu_id = s3c24xx_read_idcode_v4();
s3c24xx_init_cpu();
s3c_init_cpu(samsung_cpu_id, cpu_ids, ARRAY_SIZE(cpu_ids));
----------------- arch/arm/plat-samsung/include/plat/s3c2412.h -----------------
deleted file mode 100644
index cbae50d..0000000
@@ -1,32 +0,0 @@