Blackfin: cm-bf537u: new board port

The CM-BF537U is similar to the CM-BF537E module, but enough to need its
own board port.

Signed-off-by: Harald Krapfenbauer <Harald.Krapfenbauer@bluetechnix.at>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>

6 files changed, 258 insertions, 0 deletions

diff --git a/board/cm-bf537u/Makefile b/board/cm-bf537u/Makefile
new file mode 100644
index 0000000000..3812ba1e72
--- /dev/null
+++ b/board/cm-bf537u/Makefile
@@ -0,0 +1,54 @@
+#
+# U-boot - Makefile
+#
+# Copyright (c) 2005-2008 Analog Device Inc.
+#
+# (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-y	:= $(BOARD).o flash.o gpio_cfi_flash.o
+
+SRCS	:= $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c)
+OBJS	:= $(addprefix $(obj),$(COBJS-y))
+SOBJS	:= $(addprefix $(obj),$(SOBJS-y))
+
+$(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/cm-bf537u/cm-bf537u.c b/board/cm-bf537u/cm-bf537u.c
new file mode 100644
index 0000000000..9628e0f949
--- /dev/null
+++ b/board/cm-bf537u/cm-bf537u.c
@@ -0,0 +1,66 @@
+/*
+ * U-boot - main board file
+ *
+ * Copyright (c) 2005-2009 Analog Devices Inc.
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#include <common.h>
+#include <config.h>
+#include <command.h>
+#include <net.h>
+#include <netdev.h>
+#include <asm/blackfin.h>
+#include <asm/net.h>
+#include "gpio_cfi_flash.h"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int checkboard(void)
+{
+	printf("Board: Bluetechnix CM-BF537U board\n");
+	printf("       Support: http://www.bluetechnix.at/\n");
+	return 0;
+}
+
+phys_size_t initdram(int board_type)
+{
+	gd->bd->bi_memstart = CONFIG_SYS_SDRAM_BASE;
+	gd->bd->bi_memsize = CONFIG_SYS_MAX_RAM_SIZE;
+	return gd->bd->bi_memsize;
+}
+
+#ifdef CONFIG_BFIN_MAC
+static void board_init_enetaddr(uchar *mac_addr)
+{
+	puts("Warning: Generating 'random' MAC address\n");
+	bfin_gen_rand_mac(mac_addr);
+	eth_setenv_enetaddr("ethaddr", mac_addr);
+}
+
+int board_eth_init(bd_t *bis)
+{
+	return bfin_EMAC_initialize(bis);
+}
+#endif
+
+#ifdef CONFIG_SMC911X
+int board_eth_init(bd_t *bis)
+{
+	return smc911x_initialize(0, CONFIG_SMC911X_BASE);
+}
+#endif
+
+int misc_init_r(void)
+{
+#ifdef CONFIG_BFIN_MAC
+	uchar enetaddr[6];
+	if (!eth_getenv_enetaddr("ethaddr", enetaddr))
+		board_init_enetaddr(enetaddr);
+#endif
+
+	gpio_cfi_flash_init();
+
+	return 0;
+}
diff --git a/board/cm-bf537u/config.mk b/board/cm-bf537u/config.mk
new file mode 100644
index 0000000000..3c0b46f721
--- /dev/null
+++ b/board/cm-bf537u/config.mk
@@ -0,0 +1,34 @@
+#
+# Copyright (c) 2005-2008 Analog Device Inc.
+#
+# (C) Copyright 2001
+# 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
+#
+
+# This is not actually used for Blackfin boards so do not change it
+#TEXT_BASE = do-not-use-me
+
+CFLAGS_lib_generic += -O2
+CFLAGS_lzma += -O2
+
+# Set some default LDR flags based on boot mode.
+LDR_FLAGS-BFIN_BOOT_PARA := --bits 16 --dma 8
+LDR_FLAGS += $(LDR_FLAGS-$(CONFIG_BFIN_BOOT_MODE))
diff --git a/board/cm-bf537u/flash.c b/board/cm-bf537u/flash.c
new file mode 100644
index 0000000000..ebe17b6531
--- /dev/null
+++ b/board/cm-bf537u/flash.c
@@ -0,0 +1,34 @@
+/*
+ * flash.c - helper commands for working with GPIO-assisted flash
+ *
+ * Copyright (c) 2005-2009 Analog Devices Inc.
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#include <common.h>
+#include <command.h>
+#include <asm/blackfin.h>
+#include "gpio_cfi_flash.h"
+
+int do_ph(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+	ulong faddr = CONFIG_SYS_FLASH_BASE;
+	ushort data;
+	ulong dflg;
+
+	if (argc > 1) {
+		dflg = simple_strtoul(argv[1], NULL, 16);
+		faddr |= (dflg << 21);
+		gpio_cfi_flash_swizzle((void *)faddr);
+	} else {
+		data = bfin_read_PORTHIO();
+		printf("Port H data %04x (PH0:%i)\n", data, !!(data & PH0));
+	}
+
+	return 0;
+}
+
+U_BOOT_CMD(ph, 3, 0, do_ph,
+	"set/clear PH0 GPIO flash bank switch\n",
+	"<ph0> - set PH0 GPIO pin state\n");
diff --git a/board/cm-bf537u/gpio_cfi_flash.c b/board/cm-bf537u/gpio_cfi_flash.c
new file mode 100644
index 0000000000..68633ec78d
--- /dev/null
+++ b/board/cm-bf537u/gpio_cfi_flash.c
@@ -0,0 +1,60 @@
+/*
+ * gpio_cfi_flash.c - GPIO-assisted Flash Chip Support
+ *
+ * Copyright (c) 2009 Analog Devices Inc.
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#include <common.h>
+#include <asm/blackfin.h>
+#include <asm/io.h>
+#include "gpio_cfi_flash.h"
+
+#define GPIO_PIN_1  PH0
+#define GPIO_MASK_1 (1 << 21)
+#define GPIO_MASK   (GPIO_MASK_1)
+
+void *gpio_cfi_flash_swizzle(void *vaddr)
+{
+	unsigned long addr = (unsigned long)vaddr;
+
+	if (addr & GPIO_MASK_1)
+		bfin_write_PORTHIO_SET(GPIO_PIN_1);
+	else
+		bfin_write_PORTHIO_CLEAR(GPIO_PIN_1);
+
+#ifdef GPIO_MASK_2
+	if (addr & GPIO_MASK_2)
+		bfin_write_PORTGIO_SET(GPIO_PIN_2);
+	else
+		bfin_write_PORTGIO_CLEAR(GPIO_PIN_2);
+#endif
+
+	SSYNC();
+
+	return (void *)(addr & ~GPIO_MASK);
+}
+
+#define __raw_writeq(value, addr) *(volatile u64 *)addr = value
+#define __raw_readq(addr) *(volatile u64 *)addr
+
+#define MAKE_FLASH(size, sfx) \
+void flash_write##size(u##size value, void *addr) \
+{ \
+	__raw_write##sfx(value, gpio_cfi_flash_swizzle(addr)); \
+} \
+u##size flash_read##size(void *addr) \
+{ \
+	return __raw_read##sfx(gpio_cfi_flash_swizzle(addr)); \
+}
+MAKE_FLASH(8, b)  /* flash_write8()  flash_read8() */
+MAKE_FLASH(16, w) /* flash_write16() flash_read16() */
+MAKE_FLASH(32, l) /* flash_write32() flash_read32() */
+MAKE_FLASH(64, q) /* flash_write64() flash_read64() */
+
+void gpio_cfi_flash_init(void)
+{
+	bfin_write_PORTHIO_DIR(bfin_read_PORTHIO_DIR() | GPIO_PIN_1);
+	gpio_cfi_flash_swizzle((void *)CONFIG_SYS_FLASH_BASE);
+}
diff --git a/board/cm-bf537u/gpio_cfi_flash.h b/board/cm-bf537u/gpio_cfi_flash.h
new file mode 100644
index 0000000000..5211e972ad
--- /dev/null
+++ b/board/cm-bf537u/gpio_cfi_flash.h
@@ -0,0 +1,10 @@
+/*
+ * gpio_cfi_flash.c - GPIO-assisted Flash Chip Support
+ *
+ * Copyright (c) 2009 Analog Devices Inc.
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+void *gpio_cfi_flash_swizzle(void *vaddr);
+void gpio_cfi_flash_init(void);