Blackfin: cm-bf527: new board port

Signed-off-by: Mike Frysinger <vapier@gentoo.org>

8 files changed, 440 insertions, 0 deletions

diff --git a/board/cm-bf527/.gitignore b/board/cm-bf527/.gitignore
new file mode 100644
index 0000000..945f324
--- /dev/null
+++ b/board/cm-bf527/.gitignore
@@ -0,0 +1 @@
+/u-boot.lds
diff --git a/board/cm-bf527/Makefile b/board/cm-bf527/Makefile
new file mode 100644
index 0000000..07d285e
--- /dev/null
+++ b/board/cm-bf527/Makefile
@@ -0,0 +1,57 @@
+#
+# 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 gpio.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) $(obj)u-boot.lds
+	$(AR) $(ARFLAGS) $@ $(OBJS) $(SOBJS)
+
+$(obj)u-boot.lds: u-boot.lds.S
+	$(CPP) $(CPPFLAGS) -D__ASSEMBLY__ -P $^ > $@
+
+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-bf527/cm-bf527.c b/board/cm-bf527/cm-bf527.c
new file mode 100644
index 0000000..db1cf90
--- /dev/null
+++ b/board/cm-bf527/cm-bf527.c
@@ -0,0 +1,79 @@
+/*
+ * 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 <net.h>
+#include <netdev.h>
+#include <asm/blackfin.h>
+#include <asm/net.h>
+#include <asm/mach-common/bits/otp.h>
+#include "gpio_cfi_flash.h"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int checkboard(void)
+{
+	printf("Board: Bluetechnix CM-BF527 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)
+{
+	bool valid_mac = false;
+
+	/* the MAC is stored in OTP memory page 0xDF */
+	uint32_t ret;
+	uint64_t otp_mac;
+
+	ret = bfrom_OtpRead(0xDF, OTP_LOWER_HALF, &otp_mac);
+	if (!(ret & OTP_MASTER_ERROR)) {
+		uchar *otp_mac_p = (uchar *)&otp_mac;
+
+		for (ret = 0; ret < 6; ++ret)
+			mac_addr[ret] = otp_mac_p[5 - ret];
+
+		if (is_valid_ether_addr(mac_addr))
+			valid_mac = true;
+	}
+
+	if (!valid_mac) {
+		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
+
+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-bf527/config.mk b/board/cm-bf527/config.mk
new file mode 100644
index 0000000..f4a5a80
--- /dev/null
+++ b/board/cm-bf527/config.mk
@@ -0,0 +1,32 @@
+#
+# 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
+
+LDSCRIPT = $(obj)board/$(BOARDDIR)/u-boot.lds
+
+# Set some default LDR flags based on boot mode.
+LDR_FLAGS += $(LDR_FLAGS-$(CONFIG_BFIN_BOOT_MODE))
diff --git a/board/cm-bf527/gpio.c b/board/cm-bf527/gpio.c
new file mode 100644
index 0000000..dcf641b
--- /dev/null
+++ b/board/cm-bf527/gpio.c
@@ -0,0 +1,74 @@
+/*
+ * Control GPIO pins on the fly
+ *
+ * Copyright (c) 2008 Analog Devices Inc.
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#include <common.h>
+#include <command.h>
+
+#include <asm/blackfin.h>
+
+int do_gpio(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+	if (argc != 3) {
+ show_usage:
+		printf("Usage:\n%s\n", cmdtp->usage);
+		return 1;
+	}
+
+	/* parse the behavior */
+	ulong port_cmd = 0;
+	switch (argv[1][0]) {
+		case 'i': break;
+		case 's': port_cmd = (PORTFIO_SET - PORTFIO); break;
+		case 'c': port_cmd = (PORTFIO_CLEAR - PORTFIO); break;
+		case 't': port_cmd = (PORTFIO_TOGGLE - PORTFIO); break;
+		default:  goto show_usage;
+	}
+
+	/* parse the pin with format: [p]<fgh><#> */
+	const char *str_pin = argv[2];
+
+	/* grab the [p]<fgh> portion */
+	ulong port_base;
+	if (*str_pin == 'p') ++str_pin;
+	switch (*str_pin) {
+		case 'f': port_base = PORTFIO; break;
+		case 'g': port_base = PORTGIO; break;
+		case 'h': port_base = PORTHIO; break;
+		default:  goto show_usage;
+	}
+
+	/* grab the <#> portion */
+	ulong pin = simple_strtoul(str_pin+1, NULL, 10);
+	ulong pin_mask = (1 << pin);
+	if (pin > 15)
+		goto show_usage;
+
+	/* finally, let's do it: set direction and exec command */
+	switch (*str_pin) {
+		case 'f': bfin_write_PORTF_FER(bfin_read_PORTF_FER() & ~pin_mask); break;
+		case 'g': bfin_write_PORTG_FER(bfin_read_PORTG_FER() & ~pin_mask); break;
+		case 'h': bfin_write_PORTH_FER(bfin_read_PORTH_FER() & ~pin_mask); break;
+	}
+
+	ulong port_dir = port_base + (PORTFIO_DIR - PORTFIO);
+	if (argv[1][0] == 'i')
+		bfin_write16(port_dir, bfin_read16(port_dir) & ~pin_mask);
+	else {
+		bfin_write16(port_dir, bfin_read16(port_dir) | pin_mask);
+		bfin_write16(port_base + port_cmd, pin_mask);
+	}
+
+	printf("gpio: pin %li on port %c has been %c\n", pin, *str_pin, argv[1][0]);
+
+	return 0;
+}
+
+U_BOOT_CMD(gpio, 3, 0, do_gpio,
+	"gpio    - set/clear/toggle gpio output pins\n",
+	"<s|c|t> <port><pin>\n"
+	"    - set/clear/toggle the specified pin\n");
diff --git a/board/cm-bf527/gpio_cfi_flash.c b/board/cm-bf527/gpio_cfi_flash.c
new file mode 100644
index 0000000..565d900
--- /dev/null
+++ b/board/cm-bf527/gpio_cfi_flash.c
@@ -0,0 +1,63 @@
+/*
+ * 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  PH9
+#define GPIO_MASK_1 (1 << 21)
+#define GPIO_PIN_2  PG11
+#define GPIO_MASK_2 (1 << 22)
+#define GPIO_MASK   (GPIO_MASK_1 | GPIO_MASK_2)
+
+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_write16() */
+MAKE_FLASH(32, l) /* flash_write32() flash_write32() */
+MAKE_FLASH(64, q) /* flash_write64() flash_write64() */
+
+void gpio_cfi_flash_init(void)
+{
+	bfin_write_PORTHIO_DIR(bfin_read_PORTHIO_DIR() | GPIO_PIN_1);
+	bfin_write_PORTGIO_DIR(bfin_read_PORTGIO_DIR() | GPIO_PIN_2);
+	gpio_cfi_flash_swizzle((void *)CONFIG_SYS_FLASH_BASE);
+}
diff --git a/board/cm-bf527/gpio_cfi_flash.h b/board/cm-bf527/gpio_cfi_flash.h
new file mode 100644
index 0000000..5211e97
--- /dev/null
+++ b/board/cm-bf527/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);
diff --git a/board/cm-bf527/u-boot.lds.S b/board/cm-bf527/u-boot.lds.S
new file mode 100644
index 0000000..3e8be35
--- /dev/null
+++ b/board/cm-bf527/u-boot.lds.S
@@ -0,0 +1,124 @@
+/*
+ * U-boot - u-boot.lds.S
+ *
+ * Copyright (c) 2005-2008 Analog Device Inc.
+ *
+ * (C) Copyright 2000-2004
+ * 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 <config.h>
+#include <asm/blackfin.h>
+#undef ALIGN
+#undef ENTRY
+#undef bfin
+
+/* If we don't actually load anything into L1 data, this will avoid
+ * a syntax error.  If we do actually load something into L1 data,
+ * we'll get a linker memory load error (which is what we'd want).
+ * This is here in the first place so we can quickly test building
+ * for different CPU's which may lack non-cache L1 data.
+ */
+#ifndef L1_DATA_B_SRAM
+# define L1_DATA_B_SRAM      CONFIG_SYS_MONITOR_BASE
+# define L1_DATA_B_SRAM_SIZE 0
+#endif
+
+OUTPUT_ARCH(bfin)
+
+MEMORY
+{
+	ram     : ORIGIN = CONFIG_SYS_MONITOR_BASE, LENGTH = CONFIG_SYS_MONITOR_LEN
+	l1_code : ORIGIN = L1_INST_SRAM,            LENGTH = L1_INST_SRAM_SIZE
+	l1_data : ORIGIN = L1_DATA_B_SRAM,          LENGTH = L1_DATA_B_SRAM_SIZE
+}
+
+ENTRY(_start)
+SECTIONS
+{
+	.text :
+	{
+		cpu/blackfin/start.o (.text .text.*)
+		__initcode_start = .;
+		cpu/blackfin/initcode.o (.text .text.*)
+		__initcode_end = .;
+		*(.text .text.*)
+	} >ram
+
+	.rodata :
+	{
+		. = ALIGN(4);
+		*(.rodata .rodata.*)
+		*(.rodata1)
+		*(.eh_frame)
+		. = ALIGN(4);
+	} >ram
+
+	.data :
+	{
+		. = ALIGN(256);
+		*(.data .data.*)
+		*(.data1)
+		*(.sdata)
+		*(.sdata2)
+		*(.dynamic)
+		CONSTRUCTORS
+	} >ram
+
+	.u_boot_cmd :
+	{
+		___u_boot_cmd_start = .;
+		*(.u_boot_cmd)
+		___u_boot_cmd_end = .;
+	} >ram
+
+	.text_l1 :
+	{
+		. = ALIGN(4);
+		__stext_l1 = .;
+		*(.l1.text)
+		. = ALIGN(4);
+		__etext_l1 = .;
+	} >l1_code AT>ram
+	__stext_l1_lma = LOADADDR(.text_l1);
+
+	.data_l1 :
+	{
+		. = ALIGN(4);
+		__sdata_l1 = .;
+		*(.l1.data)
+		*(.l1.bss)
+		. = ALIGN(4);
+		__edata_l1 = .;
+	} >l1_data AT>ram
+	__sdata_l1_lma = LOADADDR(.data_l1);
+
+	.bss :
+	{
+		. = ALIGN(4);
+		__bss_start = .;
+		*(.sbss) *(.scommon)
+		*(.dynbss)
+		*(.bss .bss.*)
+		*(COMMON)
+		__bss_end = .;
+	} >ram
+}