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>
diff --git a/arch/arm/cpu/arm926ejs/spear/cpu.c b/arch/arm/cpu/arm926ejs/spear/cpu.c
new file mode 100644
index 0000000..9e074bc
--- /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