[PATCH 07/10] MIPS: add initial BCM47xx-based boards support
Antony Pavlov
antonynpavlov at gmail.com
Sun Jul 24 15:22:14 EDT 2011
Signed-off-by: Antony Pavlov <antonynpavlov at gmail.com>
---
arch/mips/Kconfig | 10 ++++++
arch/mips/Makefile | 2 +
arch/mips/mach-bcm47xx/Kconfig | 12 +++++++
arch/mips/mach-bcm47xx/Makefile | 1 +
arch/mips/mach-bcm47xx/include/mach/debug_ll.h | 40 ++++++++++++++++++++++++
arch/mips/mach-bcm47xx/include/mach/hardware.h | 32 +++++++++++++++++++
arch/mips/mach-bcm47xx/reset.c | 36 +++++++++++++++++++++
7 files changed, 133 insertions(+), 0 deletions(-)
create mode 100644 arch/mips/mach-bcm47xx/Kconfig
create mode 100644 arch/mips/mach-bcm47xx/Makefile
create mode 100644 arch/mips/mach-bcm47xx/include/mach/debug_ll.h
create mode 100644 arch/mips/mach-bcm47xx/include/mach/hardware.h
create mode 100644 arch/mips/mach-bcm47xx/reset.c
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index a84d469..50d734a 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -37,9 +37,19 @@ config MACH_MIPS_MALTA
select SYS_SUPPORTS_BIG_ENDIAN
select HAS_DEBUG_LL
+config MACH_MIPS_BCM47XX
+ bool "Broadcom BCM47xx-based boards"
+ select CSRC_R4K_LIB
+ select DRIVER_SERIAL_NS16550
+ select SYS_HAS_CPU_MIPS32_R1
+ select SYS_SUPPORTS_32BIT_KERNEL
+ select SYS_SUPPORTS_LITTLE_ENDIAN
+ select HAS_DEBUG_LL
+
endchoice
source arch/mips/mach-malta/Kconfig
+source arch/mips/mach-bcm47xx/Kconfig
endmenu
diff --git a/arch/mips/Makefile b/arch/mips/Makefile
index ca6aa56..b3554d2 100644
--- a/arch/mips/Makefile
+++ b/arch/mips/Makefile
@@ -37,6 +37,8 @@ LDFLAGS_barebox += -nostdlib
machine-$(CONFIG_MACH_MIPS_MALTA) := malta
board-$(CONFIG_BOARD_QEMU_MALTA) := qemu-malta
+machine-$(CONFIG_MACH_MIPS_BCM47XX) := bcm47xx
+
machdirs := $(patsubst %,arch/mips/mach-%/,$(machine-y))
ifeq ($(KBUILD_SRC),)
diff --git a/arch/mips/mach-bcm47xx/Kconfig b/arch/mips/mach-bcm47xx/Kconfig
new file mode 100644
index 0000000..5143a15
--- /dev/null
+++ b/arch/mips/mach-bcm47xx/Kconfig
@@ -0,0 +1,12 @@
+if MACH_MIPS_BCM47XX
+
+config ARCH_TEXT_BASE
+ hex
+ default 0xa0800000
+
+choice
+ prompt "Board type"
+
+endchoice
+
+endif
diff --git a/arch/mips/mach-bcm47xx/Makefile b/arch/mips/mach-bcm47xx/Makefile
new file mode 100644
index 0000000..f3cc668
--- /dev/null
+++ b/arch/mips/mach-bcm47xx/Makefile
@@ -0,0 +1 @@
+obj-y += reset.o
diff --git a/arch/mips/mach-bcm47xx/include/mach/debug_ll.h b/arch/mips/mach-bcm47xx/include/mach/debug_ll.h
new file mode 100644
index 0000000..32d13c1
--- /dev/null
+++ b/arch/mips/mach-bcm47xx/include/mach/debug_ll.h
@@ -0,0 +1,40 @@
+/*
+ * Copyright (C) 2011 Antony Pavlov <antonynpavlov at gmail.com>
+ *
+ * This file is part of barebox.
+ * 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 version 2
+ * as published by the Free Software Foundation.
+ *
+ * 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
+ */
+
+/** @file
+ * This File contains declaration for early output support
+ */
+#ifndef __INCLUDE_ARCH_DEBUG_LL_H__
+#define __INCLUDE_ARCH_DEBUG_LL_H__
+
+#include <asm/io.h>
+#include <mach/hardware.h>
+
+#define rbr 0
+#define lsr 5
+#define LSR_THRE 0x20 /* Xmit holding register empty */
+
+static __inline__ void putc(char ch)
+{
+ while (!(__raw_readb(DEBUG_LL_UART_ADDR + lsr) & LSR_THRE));
+ __raw_writeb(ch, DEBUG_LL_UART_ADDR + rbr);
+}
+
+#endif /* __INCLUDE_ARCH_DEBUG_LL_H__ */
diff --git a/arch/mips/mach-bcm47xx/include/mach/hardware.h b/arch/mips/mach-bcm47xx/include/mach/hardware.h
new file mode 100644
index 0000000..703e7f7
--- /dev/null
+++ b/arch/mips/mach-bcm47xx/include/mach/hardware.h
@@ -0,0 +1,32 @@
+/*
+ * Copyright (C) 2011 Antony Pavlov <antonynpavlov at gmail.com>
+ *
+ * This file is part of barebox.
+ * 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 version 2
+ * as published by the Free Software Foundation.
+ *
+ * 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
+ */
+
+#ifndef __INCLUDE_ARCH_HARDWARE_H__
+#define __INCLUDE_ARCH_HARDWARE_H__
+
+#define DEBUG_LL_UART_ADDR 0xb8000300
+
+/*
+ * Reset register.
+ */
+#define SOFTRES_REG 0xbf000500
+#define GORESET 0x42
+
+#endif /* __INCLUDE_ARCH_HARDWARE_H__ */
diff --git a/arch/mips/mach-bcm47xx/reset.c b/arch/mips/mach-bcm47xx/reset.c
new file mode 100644
index 0000000..2818e7c
--- /dev/null
+++ b/arch/mips/mach-bcm47xx/reset.c
@@ -0,0 +1,36 @@
+/*
+ * Copyright (C) 2011 Antony Pavlov <antonynpavlov at gmail.com>
+ *
+ * This file is part of barebox.
+ * 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 version 2
+ * as published by the Free Software Foundation.
+ *
+ * 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
+ */
+
+/**
+ * @file
+ * @brief Resetting an malta board
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <mach/hardware.h>
+
+void __noreturn reset_cpu(ulong addr)
+{
+ __raw_writel(GORESET, (char *)SOFTRES_REG);
+ while (1);
+ /*NOTREACHED*/
+}
+EXPORT_SYMBOL(reset_cpu);
--
1.7.5.4
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