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authorWolfgang Denk <wd@denx.de>2011-11-21 22:00:37 +0100
committerWolfgang Denk <wd@denx.de>2011-11-21 22:00:37 +0100
commitc829ff2e3d1bec9b2019480d82638149327db99e (patch)
tree0bd760629b01f50e0829405abebaa66d1332b7c1 /arch
parent05622191e510e495b6a06da6342126e80a3fed8f (diff)
parent4279c53e5b594ed9b09c752df3cf0b4eacf57788 (diff)
Merge branch 'master' of git://git.denx.de/u-boot-nios
* 'master' of git://git.denx.de/u-boot-nios: nios2: Offer ft_board_setup() capability and call fdt_fixup_ethernet(). board/nios2-generic: Use altera_pio driver and remove board specific driver gpio: Add driver for Altera's PIO core nios2: Pseudo implement dcache_status/enable/disable()
Diffstat (limited to 'arch')
-rw-r--r--arch/nios2/cpu/Makefile1
-rw-r--r--arch/nios2/cpu/cpu.c16
-rw-r--r--arch/nios2/cpu/fdt.c53
-rw-r--r--arch/nios2/include/asm/gpio.h13
4 files changed, 81 insertions, 2 deletions
diff --git a/arch/nios2/cpu/Makefile b/arch/nios2/cpu/Makefile
index aa41160af3..402fd749dd 100644
--- a/arch/nios2/cpu/Makefile
+++ b/arch/nios2/cpu/Makefile
@@ -28,6 +28,7 @@ LIB = $(obj)lib$(CPU).o
START = start.o
SOBJS = exceptions.o
COBJS = cpu.o interrupts.o sysid.o traps.o epcs.o
+COBJS += fdt.o
SRCS := $(START:.o=.S) $(SOBJS:.o=.S) $(COBJS:.o=.c)
OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS))
diff --git a/arch/nios2/cpu/cpu.c b/arch/nios2/cpu/cpu.c
index ef360eecbb..edf256017a 100644
--- a/arch/nios2/cpu/cpu.c
+++ b/arch/nios2/cpu/cpu.c
@@ -24,6 +24,7 @@
#include <common.h>
#include <nios2.h>
#include <nios2-io.h>
+#include <asm/cache.h>
#if defined (CONFIG_SYS_NIOS_SYSID_BASE)
extern void display_sysid (void);
@@ -47,3 +48,18 @@ int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
nios2_callr(CONFIG_SYS_RESET_ADDR);
return 0;
}
+
+int dcache_status(void)
+{
+ return 1;
+}
+
+void dcache_enable(void)
+{
+ flush_dcache(CONFIG_SYS_DCACHE_SIZE, CONFIG_SYS_DCACHELINE_SIZE);
+}
+
+void dcache_disable(void)
+{
+ flush_dcache(CONFIG_SYS_DCACHE_SIZE, CONFIG_SYS_DCACHELINE_SIZE);
+}
diff --git a/arch/nios2/cpu/fdt.c b/arch/nios2/cpu/fdt.c
new file mode 100644
index 0000000000..b1ed9e17f2
--- /dev/null
+++ b/arch/nios2/cpu/fdt.c
@@ -0,0 +1,53 @@
+/*
+ * (C) Copyright 2011, Missing Link Electronics
+ * Joachim Foerster <joachim@missinglinkelectronics.com>
+ *
+ * Taken from arch/powerpc/cpu/ppc4xx/fdt.c:
+ *
+ * (C) Copyright 2007-2008
+ * Stefan Roese, DENX Software Engineering, sr@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 <common.h>
+
+#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
+#include <libfdt.h>
+#include <libfdt_env.h>
+#include <fdt_support.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+void __ft_board_setup(void *blob, bd_t *bd)
+{
+ ft_cpu_setup(blob, bd);
+}
+void ft_board_setup(void *blob, bd_t *bd) \
+ __attribute__((weak, alias("__ft_board_setup")));
+
+void ft_cpu_setup(void *blob, bd_t *bd)
+{
+ /*
+ * Fixup all ethernet nodes
+ * Note: aliases in the dts are required for this
+ */
+ fdt_fixup_ethernet(blob);
+}
+#endif /* CONFIG_OF_LIBFDT && CONFIG_OF_BOARD_SETUP */
diff --git a/arch/nios2/include/asm/gpio.h b/arch/nios2/include/asm/gpio.h
index 4b21c8f7f2..908381f5f7 100644
--- a/arch/nios2/include/asm/gpio.h
+++ b/arch/nios2/include/asm/gpio.h
@@ -5,8 +5,8 @@
* bit[0] data
* bit[1] output enable
*
- * when CONFIG_SYS_GPIO_BASE is not defined, board may provide
- * its own driver.
+ * When CONFIG_SYS_GPIO_BASE is not defined, the board may either
+ * provide its own driver or the altera_pio driver may be used.
*
* Copyright (C) 2010 Thomas Chou <thomas@wytron.com.tw>
*
@@ -58,6 +58,15 @@ static inline int gpio_is_valid(int number)
return ((unsigned)number) < CONFIG_SYS_GPIO_WIDTH;
}
#else
+#ifdef CONFIG_ALTERA_PIO
+extern int altera_pio_init(u32 base, u8 width, char iot,
+ u32 rstval, u32 negmask,
+ const char *label);
+
+extern void altera_pio_info(void);
+#define gpio_status() altera_pio_info()
+#endif
+
extern int gpio_request(unsigned gpio, const char *label);
extern int gpio_free(unsigned gpio);
extern int gpio_direction_input(unsigned gpio);