da830: Move common code out of da830evm.c file

TI's DA850/OMAP-L138 platform is similar to DA830/OMAP-L137
in many aspects. So instead of repeating the same code in
multiple files, move the common code to a different file
and call those functions from the respective da830/da850
files.

Signed-off-by: Sudhakar Rajashekhara <sudhakar.raj@ti.com>
Acked-by: Nick Thompson <nick.thompson@ge.com>
Acked-by: Ben Gardiner <bengardiner@nanometrics.ca>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>

board/davinci/da830evm/Makefile

@@ -27,7 +27,7 @@ include $(TOPDIR)/config.mk
 
 LIB	= $(obj)lib$(BOARD).a
 
-COBJS	:= da830evm.o
+COBJS	:= da830evm.o common.o
 
 SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
 OBJS	:= $(addprefix $(obj),$(COBJS))

board/davinci/da830evm/common.c

@@ -0,0 +1,55 @@
+/*
+ * Miscellaneous DA8XX functions.
+ *
+ * Copyright (C) 2010 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <asm/io.h>
+#include <asm/arch/hardware.h>
+#include "common.h"
+
+#ifndef CONFIG_USE_IRQ
+void irq_init(void)
+{
+	/*
+	 * Mask all IRQs by clearing the global enable and setting
+	 * the enable clear for all the 90 interrupts.
+	 */
+
+	writel(0, &davinci_aintc_regs->ger);
+
+	writel(0, &davinci_aintc_regs->hier);
+
+	writel(0xffffffff, &davinci_aintc_regs->ecr1);
+	writel(0xffffffff, &davinci_aintc_regs->ecr2);
+	writel(0xffffffff, &davinci_aintc_regs->ecr3);
+}
+#endif
+
+/*
+ * Enable PSC for various peripherals.
+ */
+int da8xx_configure_lpsc_items(const struct lpsc_resource *item,
+				    const int n_items)
+{
+	int i;
+
+	for (i = 0; i < n_items; i++)
+		lpsc_on(item[i].lpsc_no);
+
+	return 0;
+}

board/davinci/da830evm/common.h

@@ -0,0 +1,30 @@
+/*
+ * Copyright (C) 2010 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef __COMMON_H
+#define __COMMON_H
+
+struct lpsc_resource {
+	const int	lpsc_no;
+};
+
+void irq_init(void);
+int da8xx_configure_lpsc_items(const struct lpsc_resource *item,
+				    int n_items);
+
+#endif /* __COMMON_H */

board/davinci/da830evm/da830evm.c

@@ -41,6 +41,7 @@
 #include <asm/arch/emac_defs.h>
 #include <asm/io.h>
 #include "../common/misc.h"
+#include "common.h"
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -120,21 +121,18 @@ static const struct pinmux_resource pinmuxes[] = {
 #endif
 };
 
+static const struct lpsc_resource lpsc[] = {
+	{ DAVINCI_LPSC_AEMIF },	/* NAND, NOR */
+	{ DAVINCI_LPSC_SPI0 },	/* Serial Flash */
+	{ DAVINCI_LPSC_EMAC },	/* image download */
+	{ DAVINCI_LPSC_UART2 },	/* console */
+	{ DAVINCI_LPSC_GPIO },
+};
+
 int board_init(void)
 {
 #ifndef CONFIG_USE_IRQ
-	/*
+	irq_init();
-	 * Mask all IRQs by clearing the global enable and setting
-	 * the enable clear for all the 90 interrupts.
-	 */
-
-	writel(0, &davinci_aintc_regs->ger);
-
-	writel(0, &davinci_aintc_regs->hier);
-
-	writel(0xffffffff, &davinci_aintc_regs->ecr1);
-	writel(0xffffffff, &davinci_aintc_regs->ecr2);
-	writel(0xffffffff, &davinci_aintc_regs->ecr3);
 #endif
 
 #ifdef CONFIG_NAND_DAVINCI
@@ -165,11 +163,8 @@ int board_init(void)
 	 * assuming here that the DSP bootloader has set the IOPU
 	 * such that PSC access is available to ARM
 	 */
-	lpsc_on(DAVINCI_LPSC_AEMIF);    /* NAND, NOR */
+	if (da8xx_configure_lpsc_items(lpsc, ARRAY_SIZE(lpsc)))
-	lpsc_on(DAVINCI_LPSC_SPI0);     /* Serial Flash */
+		return 1;
-	lpsc_on(DAVINCI_LPSC_EMAC);     /* image download */
-	lpsc_on(DAVINCI_LPSC_UART2);    /* console */
-	lpsc_on(DAVINCI_LPSC_GPIO);
 
 	/* setup the SUSPSRC for ARM to control emulation suspend */
 	writel(readl(&davinci_syscfg_regs->suspsrc) &