ENGR00121379: MX28 U-BOOT enhancements

MX28 U-BOOT enhancements.

Signed-off-by: Terry Lv <r65388@freescale.com>

5 files changed, 277 insertions, 0 deletions

diff --git a/board/freescale/mx28_evk/Makefile b/board/freescale/mx28_evk/Makefile
new file mode 100644
index 0000000..312bd63
--- /dev/null
+++ b/board/freescale/mx28_evk/Makefile
@@ -0,0 +1,52 @@
+#
+# (C) Copyright 2000-2006
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# 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	= $(obj)lib$(BOARD).a
+
+COBJS	:= mx28_evk.o
+SOBJS	:= lowlevel_init.o
+
+SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
+OBJS	:= $(addprefix $(obj),$(COBJS))
+SOBJS	:= $(addprefix $(obj),$(SOBJS))
+
+$(LIB):	$(obj).depend $(OBJS) $(SOBJS)
+	$(AR) $(ARFLAGS) $@ $(OBJS) $(SOBJS)
+
+clean:
+	rm -f $(SOBJS) $(OBJS)
+
+distclean:	clean
+	rm -f $(LIB) core *.bak $(obj).depend
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
+
diff --git a/board/freescale/mx28_evk/config.mk b/board/freescale/mx28_evk/config.mk
new file mode 100644
index 0000000..7b57ec3
--- /dev/null
+++ b/board/freescale/mx28_evk/config.mk
@@ -0,0 +1,6 @@
+#
+# image should be loaded at 0x41008000
+#
+LDSCRIPT := $(SRCTREE)/board/$(VENDOR)/$(BOARD)/u-boot.lds
+
+TEXT_BASE = 0x41008000
diff --git a/board/freescale/mx28_evk/lowlevel_init.S b/board/freescale/mx28_evk/lowlevel_init.S
new file mode 100644
index 0000000..1c62a31
--- /dev/null
+++ b/board/freescale/mx28_evk/lowlevel_init.S
@@ -0,0 +1,36 @@
+/*
+ * Board specific setup info
+ *
+ * Copyright (C) 2010 Freescale Semiconductor, Inc.
+ *
+ * (C) Copyright 2003, ARM Ltd.
+ * Philippe Robin, <philippe.robin@arm.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 <config.h>
+#include <version.h>
+
+/* Set up the platform, once the cpu has been initialized */
+.globl lowlevel_init
+lowlevel_init:
+
+	/* All SDRAM settings are done by sdram_prep */
+	mov pc, lr
diff --git a/board/freescale/mx28_evk/mx28_evk.c b/board/freescale/mx28_evk/mx28_evk.c
new file mode 100644
index 0000000..8466a1e
--- /dev/null
+++ b/board/freescale/mx28_evk/mx28_evk.c
@@ -0,0 +1,132 @@
+/*
+ * Copyright (C) 2010 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/arch/regs-pinctrl.h>
+#include <asm/arch/pinctrl.h>
+
+/* This should be removed after it's added into mach-types.h */
+#ifndef MACH_TYPE_MX28EVK
+#define MACH_TYPE_MX28EVK	2531
+#endif
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/* MMC pins */
+static struct pin_desc mmc_pins_desc[] = {
+	{ PINID_SSP0_DATA0, PIN_FUN1, PAD_8MA, PAD_3V3, 1 },
+	{ PINID_SSP0_DATA1, PIN_FUN1, PAD_8MA, PAD_3V3, 1 },
+	{ PINID_SSP0_DATA2, PIN_FUN1, PAD_8MA, PAD_3V3, 1 },
+	{ PINID_SSP0_DATA3, PIN_FUN1, PAD_8MA, PAD_3V3, 1 },
+	{ PINID_SSP0_DATA4, PIN_FUN1, PAD_8MA, PAD_3V3, 1 },
+	{ PINID_SSP0_DATA5, PIN_FUN1, PAD_8MA, PAD_3V3, 1 },
+	{ PINID_SSP0_DATA6, PIN_FUN1, PAD_8MA, PAD_3V3, 1 },
+	{ PINID_SSP0_DATA7, PIN_FUN1, PAD_8MA, PAD_3V3, 1 },
+	{ PINID_SSP0_CMD, PIN_FUN1, PAD_8MA, PAD_3V3, 1 },
+	{ PINID_SSP0_DETECT, PIN_FUN1, PAD_8MA, PAD_3V3, 1 },
+	{ PINID_SSP0_SCK, PIN_FUN1, PAD_8MA, PAD_3V3, 1 }
+};
+
+static struct pin_group mmc_pins = {
+	.pins		= mmc_pins_desc,
+	.nr_pins	= ARRAY_SIZE(mmc_pins_desc)
+};
+
+/* ENET pins */
+static struct pin_desc enet_pins_desc[] = {
+	{ PINID_ENET0_MDC, PIN_FUN1, PAD_8MA, PAD_3V3, 1 },
+	{ PINID_ENET0_MDIO, PIN_FUN1, PAD_8MA, PAD_3V3, 1 },
+	{ PINID_ENET0_RX_EN, PIN_FUN1, PAD_8MA, PAD_3V3, 1 },
+	{ PINID_ENET0_RXD0, PIN_FUN1, PAD_8MA, PAD_3V3, 1 },
+	{ PINID_ENET0_RXD1, PIN_FUN1, PAD_8MA, PAD_3V3, 1 },
+	{ PINID_ENET0_TX_EN, PIN_FUN1, PAD_8MA, PAD_3V3, 1 },
+	{ PINID_ENET0_TXD0, PIN_FUN1, PAD_8MA, PAD_3V3, 1 },
+	{ PINID_ENET0_TXD1, PIN_FUN1, PAD_8MA, PAD_3V3, 1 },
+	{ PINID_ENET_CLK, PIN_FUN1, PAD_8MA, PAD_3V3, 1 }
+};
+
+static struct pin_group enet_pins = {
+	.pins		= enet_pins_desc,
+	.nr_pins	= ARRAY_SIZE(enet_pins_desc)
+};
+
+/*
+ * Functions
+ */
+int board_init(void)
+{
+	/* Will change it for MX28 EVK later */
+	gd->bd->bi_arch_number = MACH_TYPE_MX28EVK;
+	/* Adress of boot parameters */
+	gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
+
+	return 0;
+}
+
+int dram_init(void)
+{
+	gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
+	gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE;
+
+	return 0;
+}
+
+u32 ssp_mmc_is_wp(void)
+{
+	return pin_gpio_get(PINID_SSP1_SCK);
+}
+
+void ssp_mmc_board_init(void)
+{
+	/* Set up MMC pins */
+	pin_set_group(&mmc_pins);
+
+	/* Power on the card slot */
+	pin_set_type(PINID_PWM3, PIN_GPIO);
+	pin_gpio_direction(PINID_PWM3, 1);
+	pin_gpio_set(PINID_PWM3, 0);
+
+	/* Wait 10 ms for card ramping up */
+	udelay(10000);
+
+	/* Set up WP pin */
+	pin_set_type(PINID_SSP1_SCK, PIN_GPIO);
+	pin_gpio_direction(PINID_SSP1_SCK, 0);
+}
+
+void enet_board_init(void)
+{
+	/* Set up ENET pins */
+	pin_set_group(&enet_pins);
+
+	/* Power on the external phy */
+	pin_set_type(PINID_SSP1_DATA3, PIN_GPIO);
+	pin_gpio_direction(PINID_SSP1_DATA3, 1);
+	pin_gpio_set(PINID_SSP1_DATA3, 0);
+
+	/* Reset the external phy */
+	pin_set_type(PINID_ENET0_RX_CLK, PIN_GPIO);
+	pin_gpio_direction(PINID_ENET0_RX_CLK, 1);
+	pin_gpio_set(PINID_ENET0_RX_CLK, 0);
+	udelay(200);
+	pin_gpio_set(PINID_ENET0_RX_CLK, 1);
+}
diff --git a/board/freescale/mx28_evk/u-boot.lds b/board/freescale/mx28_evk/u-boot.lds
new file mode 100644
index 0000000..b7efe6d
--- /dev/null
+++ b/board/freescale/mx28_evk/u-boot.lds
@@ -0,0 +1,51 @@
+/*
+ * (C) Copyright 2002
+ * Gary Jennejohn, DENX Software Engineering, <gj@denx.de>
+ *
+ * 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
+ */
+
+OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm")
+OUTPUT_ARCH(arm)
+ENTRY(_start)
+SECTIONS
+{
+	. = 0x00000000;
+	. = ALIGN(4);
+	.text	:
+	{
+	  cpu/arm926ejs/start.o (.text)
+	  *(.text)
+	}
+	.rodata : { *(.rodata) }
+	. = ALIGN(4);
+	.data : { *(.data) }
+	. = ALIGN(4);
+	.got : { *(.got) }
+
+	. = .;
+	__u_boot_cmd_start = .;
+	.u_boot_cmd : { *(.u_boot_cmd) }
+	__u_boot_cmd_end = .;
+
+	. = ALIGN(4);
+	__bss_start = .;
+	.bss (NOLOAD) : { *(.bss) }
+	_end = .;
+}