Patchwork [U-Boot,1/2] S5P: SROM config code moved to common directory s5p-common

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Submitter Chander Kashyap
Date April 14, 2011, 10:21 a.m.
Message ID <1302776485-28670-2-git-send-email-chander.kashyap@linaro.org>
Download mbox | patch
Permalink /patch/91203/
State Changes Requested
Delegated to: Minkyu Kang
Headers show

Comments

Chander Kashyap - April 14, 2011, 10:21 a.m.
SROM configuration is same for various S5P series Boards.

Signed-off-by: Chander Kashyap <chander.kashyap@linaro.org>
---
 arch/arm/cpu/armv7/s5p-common/Makefile |    3 +-
 arch/arm/cpu/armv7/s5p-common/sromc.c  |   49 ++++++++++++++++++++++++++++++++
 2 files changed, 51 insertions(+), 1 deletions(-)
 create mode 100644 arch/arm/cpu/armv7/s5p-common/sromc.c

--
1.7.1

Patch

diff --git a/arch/arm/cpu/armv7/s5p-common/Makefile b/arch/arm/cpu/armv7/s5p-common/Makefile
index ce0a41e..1705399 100644
--- a/arch/arm/cpu/armv7/s5p-common/Makefile
+++ b/arch/arm/cpu/armv7/s5p-common/Makefile
@@ -27,7 +27,8 @@  LIB	= $(obj)libs5p-common.o

 COBJS-y		+= cpu_info.o
 COBJS-y		+= timer.o
-COBJS-$(CONFIG_PWM)		+= pwm.o
+COBJS-y		+= sromc.o
+COBJS-$(CONFIG_PWM)	+= pwm.o

 SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
 OBJS	:= $(addprefix $(obj),$(COBJS-y) $(SOBJS))
diff --git a/arch/arm/cpu/armv7/s5p-common/sromc.c b/arch/arm/cpu/armv7/s5p-common/sromc.c
new file mode 100644
index 0000000..091e8d1
--- /dev/null
+++ b/arch/arm/cpu/armv7/s5p-common/sromc.c
@@ -0,0 +1,49 @@ 
+/*
+ * Copyright (C) 2010 Samsung Electronics
+ * Naveen Krishna Ch <ch.naveen@samsung.com>
+ *
+ * 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/io.h>
+#include <asm/arch/sromc.h>
+
+/*
+ * s5p_config_sromc() - select the proper SROMC Bank and configure the
+ * band width control and bank control registers
+ * srom_bank	- SROM
+ * srom_bw_conf  - SMC Band witdh reg configuration value
+ * srom_bc_conf  - SMC Bank Control reg configuration value
+ */
+void s5p_config_sromc(u32 srom_bank, u32 srom_bw_conf, u32 srom_bc_conf)
+{
+	u32 tmp;
+	struct s5p_sromc *srom =
+		(struct s5p_sromc *)samsung_get_base_sromc();
+
+	/* Configure SMC_BW register to handle proper SROMC bank */
+	tmp = srom->bw;
+	tmp &= ~(0xF << (srom_bank * 4));
+	tmp |= srom_bw_conf;
+	srom->bw = tmp;
+
+	/* Configure SMC_BC register */
+	srom->bc[srom_bank] = srom_bc_conf;
+}