[U-Boot] [PATCH v4 4/6] i.MX31: Create a common device file.

Magnus Lilja
2009-06-13T18:50:03Z

Signed-off-by: Magnus Lilja <lilja.magnus@gmail.com>
---
cpu/arm1136/mx31/Makefile | 1 +
cpu/arm1136/mx31/devices.c | 56 ++++++++++++++++++++++++++++++++++++++
include/asm-arm/arch-mx31/mx31.h | 3 ++
3 files changed, 60 insertions(+), 0 deletions(-)
create mode 100644 cpu/arm1136/mx31/devices.c

diff --git a/cpu/arm1136/mx31/Makefile b/cpu/arm1136/mx31/Makefile
index 1e49e8d..c8e18f7 100644
--- a/cpu/arm1136/mx31/Makefile
+++ b/cpu/arm1136/mx31/Makefile
@@ -27,6 +27,7 @@ LIB = $(obj)lib$(SOC).a

COBJS += generic.o
COBJS += timer.o
+COBJS += devices.o

SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c)
OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS))
diff --git a/cpu/arm1136/mx31/devices.c b/cpu/arm1136/mx31/devices.c
new file mode 100644
index 0000000..1f4ca7e
--- /dev/null
+++ b/cpu/arm1136/mx31/devices.c
@@ -0,0 +1,56 @@
+/*
+ *
+ * (C) Copyright 2009 Magnus Lilja <lilja.magnus@gmail.com>
+ *
+ * (c) 2007 Pengutronix, Sascha Hauer <s.hauer@pengutronix.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>
+#include <asm/arch/mx31-regs.h>
+#include <asm/arch/mx31.h>
+
+#ifdef CONFIG_SYS_MX31_UART1
+void mx31_uart1_hw_init(void)
+{
+ /* setup pins for UART1 */
+ mx31_gpio_mux(MUX_RXD1__UART1_RXD_MUX);
+ mx31_gpio_mux(MUX_TXD1__UART1_TXD_MUX);
+ mx31_gpio_mux(MUX_RTS1__UART1_RTS_B);
+ mx31_gpio_mux(MUX_CTS1__UART1_CTS_B);
+}
+#endif
+
+#ifdef CONFIG_MXC_SPI
+void mx31_spi2_hw_init(void)
+{
+ /* SPI2 */
+ mx31_gpio_mux(MUX_CSPI2_SS2__CSPI2_SS2_B);
+ mx31_gpio_mux(MUX_CSPI2_SCLK__CSPI2_CLK);
+ mx31_gpio_mux(MUX_CSPI2_SPI_RDY__CSPI2_DATAREADY_B);
+ mx31_gpio_mux(MUX_CSPI2_MOSI__CSPI2_MOSI);
+ mx31_gpio_mux(MUX_CSPI2_MISO__CSPI2_MISO);
+ mx31_gpio_mux(MUX_CSPI2_SS0__CSPI2_SS0_B);
+ mx31_gpio_mux(MUX_CSPI2_SS1__CSPI2_SS1_B);
+
+ /* start SPI2 clock */
+ __REG(CCM_CGR2) = __REG(CCM_CGR2) | (3 << 4);
+}
+#endif
diff --git a/include/asm-arm/arch-mx31/mx31.h b/include/asm-arm/arch-mx31/mx31.h
index 1d475dd..53b9f27 100644
--- a/include/asm-arm/arch-mx31/mx31.h
+++ b/include/asm-arm/arch-mx31/mx31.h
@@ -47,4 +47,7 @@ static inline void mx31_gpio_set(unsigned int gpio, unsigned int value)
}
#endif

+void mx31_uart1_hw_init(void);
+void mx31_spi2_hw_init(void);
+
#endif /* __ASM_ARCH_MX31_H */
--
1.5.6