[U-Boot] [PATCH v4 1/2] socfpga: Adding System Manager driver
Chin Liang See
clsee at altera.com
Tue Jul 2 00:59:38 CEST 2013
Adding System Manager driver which will configure the
pin mux for real hardware Cyclone V development kit
(not Virtual Platform)
Signed-off-by: Chin Liang See <clsee at altera.com>
Reviewed-by: Pavel Machek <pavel at denx.de>
Cc: Wolfgang Denk <wd at denx.de>
CC: Pavel Machek <pavel at denx.de>
Cc: Dinh Nguyen <dinguyen at altera.com>
---
Changes for v2:
- Fixed the word wrap issue within patch
Changes for v3:
- Fixed the long subject of the patch
- Fixed the comment within the code
Changes for v4:
- Added change log for each revision change
arch/arm/cpu/armv7/socfpga/Makefile | 2 +-
arch/arm/cpu/armv7/socfpga/spl.c | 6 +++
arch/arm/cpu/armv7/socfpga/system_manager.c | 41 ++++++++++++++++++++
.../include/asm/arch-socfpga/socfpga_base_addrs.h | 1 +
arch/arm/include/asm/arch-socfpga/system_manager.h | 34 ++++++++++++++++
board/altera/socfpga_cyclone5/Makefile | 4 +-
include/configs/socfpga_cyclone5.h | 1 +
7 files changed, 87 insertions(+), 2 deletions(-)
create mode 100644 arch/arm/cpu/armv7/socfpga/system_manager.c
create mode 100644 arch/arm/include/asm/arch-socfpga/system_manager.h
diff --git a/arch/arm/cpu/armv7/socfpga/Makefile b/arch/arm/cpu/armv7/socfpga/Makefile
index 518e67a..cf2829a 100644
--- a/arch/arm/cpu/armv7/socfpga/Makefile
+++ b/arch/arm/cpu/armv7/socfpga/Makefile
@@ -29,7 +29,7 @@ include $(TOPDIR)/config.mk
LIB = $(obj)lib$(SOC).o
SOBJS := lowlevel_init.o
-COBJS-y := misc.o timer.o reset_manager.o
+COBJS-y := misc.o timer.o reset_manager.o system_manager.o
COBJS-$(CONFIG_SPL_BUILD) += spl.o
COBJS := $(COBJS-y)
diff --git a/arch/arm/cpu/armv7/socfpga/spl.c b/arch/arm/cpu/armv7/socfpga/spl.c
index 84216eb..28d8c99 100644
--- a/arch/arm/cpu/armv7/socfpga/spl.c
+++ b/arch/arm/cpu/armv7/socfpga/spl.c
@@ -23,6 +23,7 @@
#include <image.h>
#include <asm/arch/reset_manager.h>
#include <spl.h>
+#include <asm/arch/system_manager.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -36,6 +37,11 @@ u32 spl_boot_device(void)
*/
void spl_board_init(void)
{
+#ifndef CONFIG_SOCFPGA_VIRTUAL_TARGET
+ /* configure the pin muxing through system manager */
+ sysmgr_pinmux_init();
+#endif /* CONFIG_SOCFPGA_VIRTUAL_TARGET */
+
/* de-assert reset for peripherals and bridges based on handoff */
reset_deassert_peripherals_handoff();
diff --git a/arch/arm/cpu/armv7/socfpga/system_manager.c b/arch/arm/cpu/armv7/socfpga/system_manager.c
new file mode 100644
index 0000000..d893e97
--- /dev/null
+++ b/arch/arm/cpu/armv7/socfpga/system_manager.c
@@ -0,0 +1,41 @@
+/*
+ * Copyright Altera Corporation (C) 2013. All rights reserved
+ *
+ * This program is free software; you can redistribute it
+ * and/or modify it under the terms and conditions of the
+ * GNU General Public License, version 2, as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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, see
+ * <http://www.gnu.org/licenses/>.
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/arch/system_manager.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/*
+ * Configure all the pin muxes
+ */
+void sysmgr_pinmux_init(void)
+{
+ unsigned long offset = CONFIG_SYSMGR_PINMUXGRP_OFFSET;
+
+ const unsigned long *pval = sys_mgr_init_table;
+ unsigned long i;
+
+ for (i = 0; i < ARRAY_SIZE(sys_mgr_init_table);
+ i++, offset += sizeof(unsigned long)) {
+ writel(*pval++, (SOCFPGA_SYSMGR_ADDRESS + offset));
+ }
+}
+
+
diff --git a/arch/arm/include/asm/arch-socfpga/socfpga_base_addrs.h b/arch/arm/include/asm/arch-socfpga/socfpga_base_addrs.h
index f353eb2..819c280 100644
--- a/arch/arm/include/asm/arch-socfpga/socfpga_base_addrs.h
+++ b/arch/arm/include/asm/arch-socfpga/socfpga_base_addrs.h
@@ -23,5 +23,6 @@
#define SOCFPGA_UART1_ADDRESS 0xffc03000
#define SOCFPGA_OSC1TIMER0_ADDRESS 0xffd00000
#define SOCFPGA_RSTMGR_ADDRESS 0xffd05000
+#define SOCFPGA_SYSMGR_ADDRESS 0xffd08000
#endif /* _SOCFPGA_BASE_ADDRS_H_ */
diff --git a/arch/arm/include/asm/arch-socfpga/system_manager.h b/arch/arm/include/asm/arch-socfpga/system_manager.h
new file mode 100644
index 0000000..ef9e464
--- /dev/null
+++ b/arch/arm/include/asm/arch-socfpga/system_manager.h
@@ -0,0 +1,34 @@
+/*
+ * Copyright Altera Corporation (C) 2013. All rights reserved
+ *
+ * This program is free software; you can redistribute it
+ * and/or modify it under the terms and conditions of the
+ * GNU General Public License, version 2, as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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, see
+ * <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef _SYSTEM_MANAGER_H_
+#define _SYSTEM_MANAGER_H_
+
+#ifndef __ASSEMBLY__
+
+void sysmgr_pinmux_init(void);
+
+/* declaration for handoff table type */
+extern unsigned long sys_mgr_init_table[CONFIG_HPS_PINMUX_NUM];
+
+#endif
+
+
+#define CONFIG_SYSMGR_PINMUXGRP_OFFSET (0x400)
+
+#endif /* _SYSTEM_MANAGER_H_ */
diff --git a/board/altera/socfpga_cyclone5/Makefile b/board/altera/socfpga_cyclone5/Makefile
index 43bbc37..3092387 100644
--- a/board/altera/socfpga_cyclone5/Makefile
+++ b/board/altera/socfpga_cyclone5/Makefile
@@ -26,8 +26,10 @@ include $(TOPDIR)/config.mk
LIB = $(obj)lib$(BOARD).o
-COBJS := socfpga_cyclone5.o
+COBJS-y := socfpga_cyclone5.o
+COBJS-$(CONFIG_SPL_BUILD) += pinmux_config.o
+COBJS := $(COBJS-y)
SRCS := $(COBJS:.o=.c)
OBJS := $(addprefix $(obj),$(COBJS))
diff --git a/include/configs/socfpga_cyclone5.h b/include/configs/socfpga_cyclone5.h
index be3799b..dd6db9e 100644
--- a/include/configs/socfpga_cyclone5.h
+++ b/include/configs/socfpga_cyclone5.h
@@ -18,6 +18,7 @@
#define __CONFIG_H
#include <asm/arch/socfpga_base_addrs.h>
+#include "../../board/altera/socfpga_cyclone5/pinmux_config.h"
/*
* High level configuration
--
1.7.9.5
More information about the U-Boot
mailing list