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authorVipin KUMAR <vipin.kumar@st.com>2012-05-07 13:06:45 +0530
committerAlbert ARIBAUD <albert.u.boot@aribaud.net>2012-07-07 14:07:40 +0200
commit962d026b6aaf7d801d182f3188e4bbc106e057e3 (patch)
tree7f3328578c29e8ddfc06f622e34231ff0717a131 /arch/arm/cpu
parent9afc1af01f2d4b033e0da5df105b399949976a12 (diff)
downloadu-boot-linaro-stable-962d026b6aaf7d801d182f3188e4bbc106e057e3.tar.gz
SPEAr: Add basic arch related support for SPEAr SoCs
Earlier, architecture specific init code was mixed with board initialization code in board/spear/... This patch updates architecture support for SPEAr in latest u-boot and prints the SoC information. Signed-off-by: Vipin Kumar <vipin.kumar@st.com> Signed-off-by: Amit Virdi <amit.virdi@st.com> Acked-by: Stefan Roese <sr@denx.de> Signed-off-by: Stefan Roese <sr@denx.de>
Diffstat (limited to 'arch/arm/cpu')
-rw-r--r--arch/arm/cpu/arm926ejs/spear/Makefile3
-rw-r--r--arch/arm/cpu/arm926ejs/spear/cpu.c82
2 files changed, 84 insertions, 1 deletions
diff --git a/arch/arm/cpu/arm926ejs/spear/Makefile b/arch/arm/cpu/arm926ejs/spear/Makefile
index f32ec4ccf..46923a42f 100644
--- a/arch/arm/cpu/arm926ejs/spear/Makefile
+++ b/arch/arm/cpu/arm926ejs/spear/Makefile
@@ -25,7 +25,8 @@ include $(TOPDIR)/config.mk
LIB = $(obj)lib$(SOC).o
-COBJS := reset.o \
+COBJS := cpu.o \
+ reset.o \
timer.o
SOBJS :=
diff --git a/arch/arm/cpu/arm926ejs/spear/cpu.c b/arch/arm/cpu/arm926ejs/spear/cpu.c
new file mode 100644
index 000000000..9e074bc9e
--- /dev/null
+++ b/arch/arm/cpu/arm926ejs/spear/cpu.c
@@ -0,0 +1,82 @@
+/*
+ * (C) Copyright 2010
+ * Vipin Kumar, ST Micoelectronics, vipin.kumar@st.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/hardware.h>
+#include <asm/arch/spr_misc.h>
+
+int arch_cpu_init(void)
+{
+ struct misc_regs *const misc_p =
+ (struct misc_regs *)CONFIG_SPEAR_MISCBASE;
+ u32 periph1_clken;
+
+ periph1_clken = readl(&misc_p->periph1_clken);
+
+#if defined(CONFIG_SPEAR3XX)
+ periph1_clken |= MISC_GPT2ENB;
+#elif defined(CONFIG_SPEAR600)
+ periph1_clken |= MISC_GPT3ENB;
+#endif
+
+#if defined(CONFIG_PL011_SERIAL)
+ periph1_clken |= MISC_UART0ENB;
+#endif
+#if defined(CONFIG_DESIGNWARE_ETH)
+ periph1_clken |= MISC_ETHENB;
+#endif
+#if defined(CONFIG_DW_UDC)
+ periph1_clken |= MISC_USBDENB;
+#endif
+#if defined(CONFIG_DW_I2C)
+ periph1_clken |= MISC_I2CENB;
+#endif
+#if defined(CONFIG_ST_SMI)
+ periph1_clken |= MISC_SMIENB;
+#endif
+#if defined(CONFIG_NAND_FSMC)
+ periph1_clken |= MISC_FSMCENB;
+#endif
+
+ writel(periph1_clken, &misc_p->periph1_clken);
+ return 0;
+}
+
+#ifdef CONFIG_DISPLAY_CPUINFO
+int print_cpuinfo(void)
+{
+#ifdef CONFIG_SPEAR300
+ printf("CPU: SPEAr300\n");
+#elif defined(CONFIG_SPEAR310)
+ printf("CPU: SPEAr310\n");
+#elif defined(CONFIG_SPEAR320)
+ printf("CPU: SPEAr320\n");
+#elif defined(CONFIG_SPEAR600)
+ printf("CPU: SPEAr600\n");
+#else
+#error CPU not supported in spear platform
+#endif
+ return 0;
+}
+#endif