[U-Boot] [PATCH v3 16/19] SPEAr : Basic spear1300 architecture support added
Vipin KUMAR
vipin.kumar at st.com
Thu May 6 13:18:58 CEST 2010
SPEAr1300 is an ARMCortexA9 dual core based SoC which supports
multiple peripherals such as
1. Ethernet Controller
2. USB Device Controller
3. USB Host Controllers
4. MTD interfaces for NAND and NOR(serial and parallel) flash devices
etc
For more information, visit www.st.com/spear
This patch adds the architecture support for spear1300.
Signed-off-by: Vipin Kumar <vipin.kumar at st.com>
---
arch/arm/cpu/arm_cortexa8/spear13xx/Makefile | 52 ++++
arch/arm/cpu/arm_cortexa8/spear13xx/cache.S | 114 ++++++++
arch/arm/cpu/arm_cortexa8/spear13xx/cpu.c | 96 +++++++
arch/arm/cpu/arm_cortexa8/spear13xx/reset.c | 47 ++++
arch/arm/cpu/arm_cortexa8/spear13xx/timer.c | 138 ++++++++++
arch/arm/include/asm/arch-spear13xx/hardware.h | 40 +++
arch/arm/include/asm/arch-spear13xx/spr_gpt.h | 85 ++++++
arch/arm/include/asm/arch-spear13xx/spr_misc.h | 317 +++++++++++++++++++++++
arch/arm/include/asm/arch-spear13xx/sys_proto.h | 34 +++
9 files changed, 923 insertions(+), 0 deletions(-)
create mode 100644 arch/arm/cpu/arm_cortexa8/spear13xx/Makefile
create mode 100644 arch/arm/cpu/arm_cortexa8/spear13xx/cache.S
create mode 100644 arch/arm/cpu/arm_cortexa8/spear13xx/cpu.c
create mode 100755 arch/arm/cpu/arm_cortexa8/spear13xx/reset.c
create mode 100644 arch/arm/cpu/arm_cortexa8/spear13xx/timer.c
create mode 100644 arch/arm/include/asm/arch-spear13xx/hardware.h
create mode 100644 arch/arm/include/asm/arch-spear13xx/spr_gpt.h
create mode 100644 arch/arm/include/asm/arch-spear13xx/spr_misc.h
create mode 100644 arch/arm/include/asm/arch-spear13xx/sys_proto.h
diff --git a/arch/arm/cpu/arm_cortexa8/spear13xx/Makefile b/arch/arm/cpu/arm_cortexa8/spear13xx/Makefile
new file mode 100644
index 0000000..4157164
--- /dev/null
+++ b/arch/arm/cpu/arm_cortexa8/spear13xx/Makefile
@@ -0,0 +1,52 @@
+#
+# (C) Copyright 2000-2003
+# Wolfgang Denk, DENX Software Engineering, wd at denx.de.
+#
+# (C) Copyright 2008
+# Guennadi Liakhovetki, DENX Software Engineering, <lg at denx.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 $(TOPDIR)/config.mk
+
+LIB = $(obj)lib$(SOC).a
+
+COBJS += timer.o
+COBJS += reset.o
+COBJS += cpu.o
+
+SOBJS = cache.o
+
+SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c)
+OBJS := $(addprefix $(obj),$(COBJS) $(SOBJS))
+
+all: $(obj).depend $(LIB)
+
+$(LIB): $(OBJS)
+ $(AR) $(ARFLAGS) $@ $(OBJS)
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/arch/arm/cpu/arm_cortexa8/spear13xx/cache.S b/arch/arm/cpu/arm_cortexa8/spear13xx/cache.S
new file mode 100644
index 0000000..4b3db08
--- /dev/null
+++ b/arch/arm/cpu/arm_cortexa8/spear13xx/cache.S
@@ -0,0 +1,114 @@
+/*
+ * (C) Copyright 2010
+ * Vipin Kumar, ST Micoelectronics, vipin.kumar at st.com.
+ *
+ * Based on arch/arm/cpu/arm_cortexa8/s5pc1xx/cache.S
+ *
+ * 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
+ */
+
+.global invalidate_dcache
+
+/*
+ * invalidate_dcache()
+ *
+ * Invalidate the whole D-cache.
+ *
+ * Corrupted registers: r0-r5, r7, r9-r11
+ *
+ * - mm - mm_struct describing address space
+ */
+invalidate_dcache:
+ stmfd r13!, {r0 - r5, r7, r9 - r12, r14}
+
+ mrc p15, 1, r0, c0, c0, 1 @ read clidr
+ ands r3, r0, #0x7000000 @ extract loc from clidr
+ mov r3, r3, lsr #23 @ left align loc bit field
+ beq finished_inval @ if loc is 0, then no need to
+ @ clean
+ mov r10, #0 @ start clean at cache level 0
+inval_loop1:
+ add r2, r10, r10, lsr #1 @ work out 3x current cache
+ @ level
+ mov r1, r0, lsr r2 @ extract cache type bits from
+ @ clidr
+ and r1, r1, #7 @ mask of the bits for current
+ @ cache only
+ cmp r1, #2 @ see what cache we have at
+ @ this level
+ blt skip_inval @ skip if no cache, or just
+ @ i-cache
+ mcr p15, 2, r10, c0, c0, 0 @ select current cache level
+ @ in cssr
+ mov r2, #0 @ operand for mcr SBZ
+ mcr p15, 0, r2, c7, c5, 4 @ flush prefetch buffer to
+ @ sych the new cssr&csidr,
+ @ with armv7 this is 'isb',
+ @ but we compile with armv5
+ mrc p15, 1, r1, c0, c0, 0 @ read the new csidr
+ and r2, r1, #7 @ extract the length of the
+ @ cache lines
+ add r2, r2, #4 @ add 4 (line length offset)
+ ldr r4, =0x3ff
+ ands r4, r4, r1, lsr #3 @ find maximum number on the
+ @ way size
+ clz r5, r4 @ find bit position of way
+ @ size increment
+ ldr r7, =0x7fff
+ ands r7, r7, r1, lsr #13 @ extract max number of the
+ @ index size
+inval_loop2:
+ mov r9, r4 @ create working copy of max
+ @ way size
+inval_loop3:
+ orr r11, r10, r9, lsl r5 @ factor way and cache number
+ @ into r11
+ orr r11, r11, r7, lsl r2 @ factor index number into r11
+ mcr p15, 0, r11, c7, c6, 2 @ invalidate by set/way
+ subs r9, r9, #1 @ decrement the way
+ bge inval_loop3
+ subs r7, r7, #1 @ decrement the index
+ bge inval_loop2
+skip_inval:
+ add r10, r10, #2 @ increment cache number
+ cmp r3, r10
+ bgt inval_loop1
+finished_inval:
+ mov r10, #0 @ swith back to cache level 0
+ mcr p15, 2, r10, c0, c0, 0 @ select current cache level
+ @ in cssr
+ mcr p15, 0, r10, c7, c5, 4 @ flush prefetch buffer,
+ @ with armv7 this is 'isb',
+ @ but we compile with armv5
+
+ ldmfd r13!, {r0 - r5, r7, r9 - r12, pc}
+
+.global l2_cache_enable
+/*
+ * l2_cache_enable
+ */
+l2_cache_enable:
+ bx r14
+
+.global l2_cache_disable
+/*
+ * l2_cache_disable
+ */
+l2_cache_disable:
+ bx r14
diff --git a/arch/arm/cpu/arm_cortexa8/spear13xx/cpu.c b/arch/arm/cpu/arm_cortexa8/spear13xx/cpu.c
new file mode 100644
index 0000000..550661c
--- /dev/null
+++ b/arch/arm/cpu/arm_cortexa8/spear13xx/cpu.c
@@ -0,0 +1,96 @@
+/*
+ * (C) Copyright 2010
+ * Vipin Kumar, ST Micoelectronics, vipin.kumar at 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>
+
+u32 get_device_type(void)
+{
+ return 0;
+}
+
+#ifdef CONFIG_ARCH_CPU_INIT
+int arch_cpu_init(void)
+{
+ struct misc_regs *const misc_p =
+ (struct misc_regs *)CONFIG_SPEAR_MISCBASE;
+ u32 perip1_clk_enb, perip2_clk_enb;
+#if defined(CONFIG_NAND_FSMC)
+ u32 fsmc_cfg;
+#endif
+ perip1_clk_enb = readl(&misc_p->perip1_clk_enb);
+ perip2_clk_enb = readl(&misc_p->perip2_clk_enb);
+
+ perip1_clk_enb |= GPT1_CLKEN;
+
+#if defined(CONFIG_PL011_SERIAL)
+ perip1_clk_enb |= UART_CLKEN;
+#endif
+
+#if defined(CONFIG_DESIGNWARE_ETH)
+ writel(PHY_IF_GMII | CLK_SEL_OSCI3, &misc_p->gmac_clk_cfg);
+ perip1_clk_enb |= GETH_CLKEN;
+#endif
+
+#if defined(CONFIG_DW_UDC)
+ perip1_clk_enb |= UDC_UPD_CLKEN;
+#endif
+
+#if defined(CONFIG_DW_I2C)
+ perip1_clk_enb |= I2C_CLKEN;
+#endif
+
+#if defined(CONFIG_ST_SMI)
+ perip1_clk_enb |= SMI_CLKEN;
+#endif
+
+#if defined(CONFIG_NAND_FSMC)
+ fsmc_cfg = readl(&misc_p->fsmc_cfg);
+ fsmc_cfg &= ~DEV_SEL_MSK;
+ fsmc_cfg |= DEV_SEL_NAND;
+#if defined(CONFIG_SYS_FSMC_NAND_16BIT)
+ fsmc_cfg |= DEV_WIDTH_16;
+#elif defined(CONFIG_SYS_FSMC_NAND_8BIT)
+ fsmc_cfg |= DEV_WIDTH_8;
+#endif
+ writel(fsmc_cfg, &misc_p->fsmc_cfg);
+
+ perip1_clk_enb |= FSMC_CLKEN;
+#endif
+
+ writel(perip1_clk_enb, &misc_p->perip1_clk_enb);
+ writel(perip2_clk_enb, &misc_p->perip2_clk_enb);
+
+ return 0;
+}
+#endif
+
+#ifdef CONFIG_DISPLAY_CPUINFO
+int print_cpuinfo(void)
+{
+ printf("CPU: SPEAr1300\n");
+ return 0;
+}
+#endif
diff --git a/arch/arm/cpu/arm_cortexa8/spear13xx/reset.c b/arch/arm/cpu/arm_cortexa8/spear13xx/reset.c
new file mode 100755
index 0000000..6f5ce14
--- /dev/null
+++ b/arch/arm/cpu/arm_cortexa8/spear13xx/reset.c
@@ -0,0 +1,47 @@
+/*
+ * (C) Copyright 2010
+ * Vipin Kumar, ST Micoelectronics, vipin.kumar at 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>
+
+void reset_cpu(ulong ignored)
+{
+ struct misc_regs *misc_regs_p =
+ (struct misc_regs *)CONFIG_SPEAR_MISCBASE;
+
+ printf("System is going to reboot ...\n");
+
+ /*
+ * This 1 second delay will allow the above message
+ * to be printed before reset
+ */
+ udelay((1000 * 1000));
+
+ writel(0x01, &misc_regs_p->sys_sw_res);
+
+ /* system will restart */
+ while (1)
+ ;
+}
diff --git a/arch/arm/cpu/arm_cortexa8/spear13xx/timer.c b/arch/arm/cpu/arm_cortexa8/spear13xx/timer.c
new file mode 100644
index 0000000..f5c3660
--- /dev/null
+++ b/arch/arm/cpu/arm_cortexa8/spear13xx/timer.c
@@ -0,0 +1,138 @@
+/*
+ * (C) Copyright 2010
+ * Vipin Kumar, ST Micoelectronics, vipin.kumar at st.com.
+ *
+ * Based on arch/arm/cpu/arm926ejs/spear/timer.c
+ *
+ * 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_gpt.h>
+#include <asm/arch/spr_misc.h>
+
+#define GPT_TICKS (CONFIG_SPEAR_HZ_CLOCK / (1 << prescaler))
+#define GPT_RESOLUTION (GPT_TICKS / CONFIG_SPEAR_HZ)
+#define READ_TIMER() (readl(&gpt_regs_p->count) & GPT_FREE_RUNNING)
+
+static struct gpt_regs *const gpt_regs_p =
+ (struct gpt_regs *)CONFIG_SPEAR_TIMERBASE;
+
+static ulong timestamp;
+static ulong lastdec;
+static const u32 prescaler = GPT_PRESCALER_16;
+
+int timer_init(void)
+{
+ /* disable timers */
+ writel(prescaler | GPT_MODE_AUTO_RELOAD, &gpt_regs_p->control);
+
+ /* load value for free running */
+ writel(GPT_FREE_RUNNING, &gpt_regs_p->compare);
+
+ /* auto reload, start timer */
+ writel(readl(&gpt_regs_p->control) | GPT_ENABLE, &gpt_regs_p->control);
+
+ reset_timer_masked();
+
+ return 0;
+}
+
+/*
+ * timer without interrupts
+ */
+
+void reset_timer(void)
+{
+ reset_timer_masked();
+}
+
+ulong get_timer(ulong base)
+{
+ return (get_timer_masked() / GPT_RESOLUTION) - base;
+}
+
+void set_timer(ulong t)
+{
+ timestamp = t;
+}
+
+void __udelay(unsigned long usec)
+{
+ ulong tmo;
+ ulong start = get_timer_masked();
+ ulong ticks_in_ten_us = GPT_TICKS / (1000 * 100);
+ ulong rndoff;
+
+ rndoff = (usec % 10) ? 1 : 0;
+
+ /* ticks_in_ten_us timer ticks give 10 microsecconds delay */
+ tmo = ((usec / 10) + rndoff) * ticks_in_ten_us;
+
+ while ((ulong) (get_timer_masked() - start) < tmo)
+ ;
+}
+
+void reset_timer_masked(void)
+{
+ /* reset time */
+ lastdec = READ_TIMER();
+ timestamp = 0;
+}
+
+ulong get_timer_masked(void)
+{
+ ulong now = READ_TIMER();
+
+ if (now >= lastdec) {
+ /* normal mode */
+ timestamp += now - lastdec;
+ } else {
+ /* we have an overflow ... */
+ timestamp += now + GPT_FREE_RUNNING - lastdec;
+ }
+ lastdec = now;
+
+ return timestamp;
+}
+
+void udelay_masked(unsigned long usec)
+{
+ return udelay(usec);
+}
+
+/*
+ * This function is derived from PowerPC code (read timebase as long long).
+ * On ARM it just returns the timer value.
+ */
+unsigned long long get_ticks(void)
+{
+ return get_timer(0);
+}
+
+/*
+ * This function is derived from PowerPC code (timebase clock frequency).
+ * On ARM it returns the number of timer ticks per second.
+ */
+ulong get_tbclk(void)
+{
+ return CONFIG_SPEAR_HZ;
+}
diff --git a/arch/arm/include/asm/arch-spear13xx/hardware.h b/arch/arm/include/asm/arch-spear13xx/hardware.h
new file mode 100644
index 0000000..020ab2a
--- /dev/null
+++ b/arch/arm/include/asm/arch-spear13xx/hardware.h
@@ -0,0 +1,40 @@
+/*
+ * (C) Copyright 2010
+ * Vipin Kumar, STMicroelectronics, <vipin.kumar at 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
+ */
+
+#ifndef _ASM_ARCH_SPEAR13XX_HARDWARE_H
+#define _ASM_ARCH_SPEAR13XX_HARDWARE_H
+
+#define CONFIG_SYS_USBD_BASE (0xE1100000)
+#define CONFIG_SYS_PLUG_BASE (0xE1200000)
+#define CONFIG_SYS_FIFO_BASE (0xE1000800)
+#define CONFIG_SYS_SMI_BASE (0xFC000000)
+#define CONFIG_SPEAR_TIMERBASE (0xE0380000)
+#define CONFIG_SPEAR_MISCBASE (0xE0700000)
+#define CONFIG_SYS_I2C_BASE (0xE0280000)
+#define CONFIG_SPEAR_ETHBASE (0xE2000000)
+#define CONFIG_SYS_FSMC_BASE (0xB0000000)
+
+#define CONFIG_SYS_NAND_CLE (1 << 16)
+#define CONFIG_SYS_NAND_ALE (1 << 17)
+
+#endif /* _ASM_ARCH_SPEAR13XX_HARDWARE_H */
diff --git a/arch/arm/include/asm/arch-spear13xx/spr_gpt.h b/arch/arm/include/asm/arch-spear13xx/spr_gpt.h
new file mode 100644
index 0000000..e54a676
--- /dev/null
+++ b/arch/arm/include/asm/arch-spear13xx/spr_gpt.h
@@ -0,0 +1,85 @@
+/*
+ * (C) Copyright 2010
+ * Vipin Kumar, ST Micoelectronics, vipin.kumar at 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
+ */
+
+#ifndef _SPR_GPT_H
+#define _SPR_GPT_H
+
+struct gpt_regs {
+ u8 reserved[0x80];
+ u32 control;
+ u32 status;
+ u32 compare;
+ u32 count;
+ u32 capture_re;
+ u32 capture_fe;
+};
+
+/*
+ * TIMER_CONTROL register settings
+ */
+
+#define GPT_PRESCALER_MASK 0x000F
+#define GPT_PRESCALER_1 0x0000
+#define GPT_PRESCALER_2 0x0001
+#define GPT_PRESCALER_4 0x0002
+#define GPT_PRESCALER_8 0x0003
+#define GPT_PRESCALER_16 0x0004
+#define GPT_PRESCALER_32 0x0005
+#define GPT_PRESCALER_64 0x0006
+#define GPT_PRESCALER_128 0x0007
+#define GPT_PRESCALER_256 0x0008
+
+#define GPT_MODE_SINGLE_SHOT 0x0010
+#define GPT_MODE_AUTO_RELOAD 0x0000
+
+#define GPT_ENABLE 0x0020
+
+#define GPT_CAPT_MODE_MASK 0x00C0
+#define GPT_CAPT_MODE_NONE 0x0000
+#define GPT_CAPT_MODE_RE 0x0040
+#define GPT_CAPT_MODE_FE 0x0080
+#define GPT_CAPT_MODE_BOTH 0x00C0
+
+#define GPT_INT_MATCH 0x0100
+#define GPT_INT_FE 0x0200
+#define GPT_INT_RE 0x0400
+
+/*
+ * TIMER_STATUS register settings
+ */
+
+#define GPT_STS_MATCH 0x0001
+#define GPT_STS_FE 0x0002
+#define GPT_STS_RE 0x0004
+
+/*
+ * TIMER_COMPARE register settings
+ */
+
+#define GPT_FREE_RUNNING 0xFFFF
+
+/* Timer, HZ specific defines */
+#define CONFIG_SPEAR_HZ (1000)
+#define CONFIG_SPEAR_HZ_CLOCK (24000000)
+
+#endif
diff --git a/arch/arm/include/asm/arch-spear13xx/spr_misc.h b/arch/arm/include/asm/arch-spear13xx/spr_misc.h
new file mode 100644
index 0000000..8287d3b
--- /dev/null
+++ b/arch/arm/include/asm/arch-spear13xx/spr_misc.h
@@ -0,0 +1,317 @@
+/*
+ * (C) Copyright 2010
+ * Vipin Kumar, ST Microelectronics, vipin.kumar at 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
+ */
+
+#ifndef __SPR13XX_MISC_H
+#define __SPR13XX_MISC_H
+
+struct misc_regs {
+ u32 soc_cfg; /* 0x000 */
+ u32 bootstrap_cfg; /* 0x004 */
+ u8 reserved_1[0x100 - 0x8];
+ u32 pcm_cfg; /* 0x100 */
+ u32 pcm_wkup_cfg; /* 0x104 */
+ u32 switch_ctr; /* 0x108 */
+ u8 reserved_2[0x200 - 0x10c];
+ u32 sys_clk_ctrl; /* 0x200 */
+ u32 sys_sw_res; /* 0x204 */
+ u32 sys_clk_plltimer; /* 0x208 */
+ u32 sys_clk_oscitimer; /* 0x20c */
+ u32 pll_cfg; /* 0x210 */
+ u32 pll1_ctr; /* 0x214 */
+ u32 pll1_frq; /* 0x218 */
+ u32 pll1_mod; /* 0x21c */
+ u32 pll2_ctr; /* 0x220 */
+ u32 pll2_frq; /* 0x224 */
+ u32 pll2_mod; /* 0x228 */
+ u32 pll3_ctr; /* 0x22c */
+ u32 pll3_frq; /* 0x230 */
+ u32 pll3_mod; /* 0x234 */
+ u32 pll4_ctr; /* 0x238 */
+ u32 pll4_frq; /* 0x23C */
+ u32 pll4_mod; /* 0x240 */
+ u32 perip_clk_cfg; /* 0x244 */
+ u32 gmac_clk_cfg; /* 0x248 */
+ u32 c3_clk_synt; /* 0x24c */
+ u32 clcd_clk_synt; /* 0x250 */
+ u32 uart_clk_synt; /* 0x254 */
+ u32 gmac_clk_synt; /* 0x258 */
+ u32 mcif_sd_clk_synt; /* 0x25c */
+ u32 mcif_cfxd_clk_synt; /* 0x260 */
+ u32 ras_clk_synt0; /* 0x264 */
+ u32 ras_clk_synt1; /* 0x268 */
+ u32 ras_clk_synt2; /* 0x26c */
+ u32 ras_clk_synt3; /* 0x270 */
+ u32 perip1_clk_enb; /* 0x274 */
+ u32 perip2_clk_enb; /* 0x278 */
+ u32 perip1_sw_rst; /* 0x27c */
+ u32 perip2_sw_rst; /* 0x280 */
+ u32 ras_clk_enb; /* 0x284 */
+ u32 ras_sw_rst; /* 0x288 */
+ u32 pll1_synt; /* 0x28c */
+ u32 i2s_clk_cfg; /* 0x290 */
+ u8 reserved_3[0x300 - 0x294];
+ u32 dmac_hs_sel; /* 0x300 */
+ u32 dmac_sel; /* 0x304 */
+ u32 dmac_flow_sel; /* 0x308 */
+ u32 dmac_dir_sel; /* 0x30c */
+ u32 dmac_cfg; /* 0x310 */
+ u32 usbphy_gen_cfg; /* 0x314 */
+ u32 usbphy_p1_cfg; /* 0x318 */
+ u32 usbphy_p2_cfg; /* 0x31c */
+ u32 usbphy_p3_cfg; /* 0x320 */
+ u32 pcie_cfg; /* 0x324 */
+ u32 pcie_miphy_cfg; /* 0x328 */
+ u32 perip_cfg; /* 0x32c */
+ u32 fsmc_cfg; /* 0x330 */
+ u32 mpmc_ctr_sts; /* 0x334 */
+ u8 reserved_4[0x400 - 0x338];
+ u32 expi_clk_cfg; /* 0x400 */
+ u32 expi_cfg; /* 0x404 */
+ u32 expi_dmachs_flex; /* 0x408 */
+ u8 reserved_5[0x500 - 0x40C];
+ u32 prc1_lock_ctr; /* 0x500 */
+ u32 prc2_lock_ctr; /* 0x504 */
+ u32 prc1_irq_ctr; /* 0x508 */
+ u8 reserved_6[0x51c - 0x50c];
+ u32 prc2_irq_ctr; /* 0x51c */
+ u8 reserved_7[0x600 - 0x520];
+ u32 pad_pu_cfg_1; /* 0x600 */
+ u32 pad_pu_cfg_2; /* 0x604 */
+ u32 pad_pu_cfg_3; /* 0x608 */
+ u32 pad_pu_cfg_4; /* 0x60c */
+ u32 pad_pu_cfg_5; /* 0x610 */
+ u32 pad_pu_cfg_6; /* 0x614 */
+ u32 pad_pu_cfg_7; /* 0x618 */
+ u32 pad_pu_cfg_8; /* 0x61c */
+ u32 pad_pd_cfg_1; /* 0x620 */
+ u32 pad_pd_cfg_2; /* 0x624 */
+ u32 pad_pd_cfg_3; /* 0x628 */
+ u32 pad_pd_cfg_4; /* 0x62c */
+ u32 pad_pd_cfg_5; /* 0x630 */
+ u32 pad_pd_cfg_6; /* 0x634 */
+ u32 pad_pd_cfg_7; /* 0x638 */
+ u32 pad_pd_cfg_8; /* 0x63c */
+ u32 pad_sleep_cfg; /* 0x640 */
+ u32 pad_hyst_cfg; /* 0x644 */
+ u32 pad_drv_cfg; /* 0x648 */
+ u32 pad_slew_cfg; /* 0x64c */
+ u32 pad_function_en_1; /* 0x650 */
+ u32 pad_function_en_2; /* 0x654 */
+ u32 pad_function_en_3; /* 0x658 */
+ u32 ddr_pad_cfg; /* 0x65c */
+ u8 reserved_8[0x6C4 - 0x660];
+ u32 thsens_cfg; /* 0x6C4 */
+ u8 reserved_9[0x700 - 0x6C8];
+ u32 comp_1_cfg; /* 0x700 */
+ u32 comp_2_cfg; /* 0x704 */
+ u32 comp3v3_1_cfg; /* 0x708 */
+ u32 comp3v3_2_cfg; /* 0x70c */
+ u32 compddr_cfg; /* 0x710 */
+ u8 reserved_10[0x800 - 0x714];
+ u32 otp_prog_ctr; /* 0x800 */
+ u32 otp_wdata1_1; /* 0x804 */
+ u32 otp_wdata1_2; /* 0x808 */
+ u32 otp_wdata1_3; /* 0x80c */
+ u32 otp_wdata1_4; /* 0x810 */
+ u32 otp_wdata1_5; /* 0x814 */
+ u32 otp_wdata1_6; /* 0x818 */
+ u32 otp_wdata1_7; /* 0x81c */
+ u32 otp_wdata1_8; /* 0x820 */
+ u32 otp_wdata2_1; /* 0x824 */
+ u32 otp_wdata2_2; /* 0x828 */
+ u32 otp_wdata2_3; /* 0x82c */
+ u32 otp_wdata2_4; /* 0x830 */
+ u32 otp_wdata2_5; /* 0x834 */
+ u32 otp_wdata2_6; /* 0x838 */
+ u32 otp_wdata2_7; /* 0x83c */
+ u32 otp_wdata2_8; /* 0x840 */
+ u32 otp_mask_1; /* 0x844 */
+ u32 otp_mask_2; /* 0x848 */
+ u32 otp_mask_3; /* 0x84c */
+ u32 otp_mask_4; /* 0x850 */
+ u32 otp_mask_5; /* 0x854 */
+ u32 otp_mask_6; /* 0x858 */
+ u32 otp_mask_7; /* 0x85c */
+ u32 otp_mask_8; /* 0x860 */
+ u32 otp_rdata1_1; /* 0x864 */
+ u32 otp_rdata1_2; /* 0x868 */
+ u32 otp_rdata1_3; /* 0x86c */
+ u32 otp_rdata1_4; /* 0x870 */
+ u32 otp_rdata1_5; /* 0x874 */
+ u32 otp_rdata1_6; /* 0x878 */
+ u32 otp_rdata1_7; /* 0x87c */
+ u32 otp_rdata1_8; /* 0x880 */
+ u32 otp_rdata2_1; /* 0x884 */
+ u32 otp_rdata2_2; /* 0x888 */
+ u32 otp_rdata2_3; /* 0x88c */
+ u32 otp_rdata2_4; /* 0x890 */
+ u32 otp_rdata2_5; /* 0x894 */
+ u32 otp_rdata2_6; /* 0x898 */
+ u32 otp_rdata2_7; /* 0x89c */
+ u32 otp_rdata2_8; /* 0x8a0 */
+ u32 otp_rdatam_1; /* 0x8a4 */
+ u32 otp_rdatam_2; /* 0x8a8 */
+ u32 otp_rdatam_3; /* 0x8ac */
+ u32 otp_rdatam_4; /* 0x8b0 */
+ u32 otp_rdatam_5; /* 0x8b4 */
+ u32 otp_rdatam_6; /* 0x8b8 */
+ u32 otp_rdatam_7; /* 0x8bc */
+ u32 otp_rdatam_8; /* 0x8c0 */
+ u8 reserved_11[0x900 - 0x8c4];
+ u32 a9sm_clusterid; /* 0x900 */
+ u32 a9sm_status; /* 0x904 */
+ u32 a9sm_debug; /* 0x908 */
+ u32 a9sm_filter; /* 0x90c */
+ u32 a9sm_parity_cfg; /* 0x910 */
+ u32 a9sm_parity_err; /* 0x914 */
+ u8 reserved_12[0xa00 - 0x918];
+ u32 die_id_1; /* 0xa00 */
+ u32 die_id_2; /* 0xa04 */
+ u32 die_id_3; /* 0xa08 */
+ u32 die_id_4; /* 0xa0c */
+ u32 die_id_valid; /* 0xa10 */
+ u8 reserved_13[0xb00 - 0xa14];
+ u32 ras1_gpp_inp; /* 0xb00 */
+ u32 ras2_gpp_inp; /* 0xb04 */
+ u32 ras1_gpp_out; /* 0xb08 */
+ u32 ras2_gpp_out; /* 0xb0c */
+ u8 reserved_14[0x1000 - 0xb10];
+ u32 miphy_test; /* 0x1000 */
+ u32 pcie_mstr_p1; /* 0x1004 */
+ u32 pcie_awmisc_p1; /* 0x1008 */
+ u32 pcie_armisc_p1; /* 0x100c */
+ u32 pcie_mstr_p2; /* 0x1010 */
+ u32 pcie_awmisc_p2; /* 0x1014 */
+ u32 pcie_armisc_p2; /* 0x1018 */
+ u32 pcie_mstr_p3; /* 0x101c */
+ u32 pcie_awmisc_p3; /* 0x1020 */
+ u32 pcie_armisc_p3; /* 0x1024 */
+};
+
+/* sys_clk_ctrl definitions */
+#define SYS_MODE_MASK (7 << 0)
+#define SYS_MODE_REQ_DOZE (1 << 0)
+#define SYS_MODE_REQ_SLOW (2 << 0)
+#define SYS_MODE_REQ_NORMAL (4 << 0)
+#define PLL_TIMEOUT_ENB (1 << 3)
+#define XTAL_TIMEOUT_ENB (1 << 4)
+#define SYS_STATE_MASK (0xF << 16)
+#define SYS_STATE_NORMAL (0xF << 16)
+
+/* sys_clk_*timer definitions */
+#define PLL_TIM (0xff << 3)
+#define OSCI_TIM (0xff << 3)
+
+/* pll_freq definitions in MHz */
+#define FREQ_1000 (0xFA000106)
+#define FREQ_996 (0x53000004)
+#define FREQ_332 (0x53000203)
+
+/* pll_ctr definitions */
+#define PLLLOCK (1 << 0)
+#define PLLENABLE (1 << 1)
+
+/* perip_clk_cfg definitions */
+#define MPMC_CLK_PLL4 (1 << 10)
+
+/* perip*_[clk_enb/sw_rst] definitions */
+#define BUS_CLKEN (1 << 0) /* perip1 */
+#define SYSROM_CLKEN (1 << 1)
+#define AORAM_CLKEN (1 << 2)
+#define SYSRAM_CLKEN (1 << 3)
+#define FSMC_CLKEN (1 << 4)
+#define SMI_CLKEN (1 << 5)
+#define SD_CLKEN (1 << 6)
+#define CFXD_CLKEN (1 << 7)
+#define GETH_CLKEN (1 << 8)
+#define UHC1_CLKEN (1 << 9)
+#define UHC2_CLKEN (1 << 10)
+#define UDC_UPD_CLKEN (1 << 11)
+#define PCI1_CLKEN (1 << 12)
+#define PCI2_CLKEN (1 << 13)
+#define PCI3_CLKEN (1 << 14)
+#define UART_CLKEN (1 << 15)
+#define SSP_CLKEN (1 << 17)
+#define I2C_CLKEN (1 << 18)
+#define I2S_SLV_CLKEN (1 << 19)
+#define I2S_MST_CLKEN (1 << 20)
+#define GPT1_CLKEN (1 << 21)
+#define GPT2_CLKEN (1 << 22)
+#define GPIO1_CLKEN (1 << 23)
+#define GPIO2_CLKEN (1 << 24)
+#define DMA1_CLKEN (1 << 25)
+#define DMA2_CLKEN (1 << 26)
+#define CLCD_CLKEN (1 << 27)
+#define JPEG_CLKEN (1 << 28)
+#define C3_CLKEN (1 << 29)
+#define ADC_CLKEN (1 << 30)
+#define RTC_CLKEN (1 << 31)
+
+#define DDR_CTRL_CLKEN (1 << 0) /* perip2 */
+#define DDR_CORE_CLKEN (1 << 1)
+#define CPU_DBG_CLKEN (1 << 2)
+#define KBD_CLKEN (1 << 3)
+#define GPT3_CLKEN (1 << 4)
+#define GPT4_CLKEN (1 << 5)
+#define ACP_CLKEN (1 << 6)
+#define I2S_REFOUT_CLKEN (1 << 7)
+#define THSENS_CLKEN (1 << 8)
+
+/* fsmc_cfg definitions */
+#define DEV_SEL_NOR (0 << 0)
+#define DEV_SEL_NAND (1 << 0)
+#define DEV_SEL_SRAM (2 << 0)
+#define DEV_SEL_MSK (3 << 0)
+#define NAND_BANK_0 (0 << 2)
+#define NAND_BANK_1 (1 << 2)
+#define NAND_BANK_2 (2 << 2)
+#define NAND_BANK_3 (3 << 2)
+#define DEV_WIDTH_8 (0 << 4)
+#define DEV_WIDTH_16 (1 << 4)
+
+/* usbphy_gen_cfg definitions */
+#define COMMON_PWDN (1 << 0)
+#define USBPHY_POR (1 << 12)
+#define USBPHY_RST (1 << 13)
+#define UTMI_XFER_RST0 (1 << 14)
+#define UTMI_XFER_RST1 (1 << 15)
+#define UTMI_XFER_RST2 (1 << 16)
+#define USB_PLL_LOCK (1 << 27)
+
+/* synth registers definitions */
+#define SYNT_CLK_ENB (1 << 31)
+#define SYNT_FIN_FULL (1 << 30)
+#define SYNT_X_1 (1 << 16)
+#define SYNT_Y_2 (2 << 0)
+#define SYNT_Y_5 (5 << 0)
+
+/* gmac_clk_cfg definitions */
+#define PHY_IF_GMII (0 << 4)
+#define PHY_IF_RGMII (1 << 4)
+#define PHY_IF_RMII (4 << 4)
+#define GMII_SYNT_ENB (1 << 3)
+#define CLK_SEL_PAD (0 << 0)
+#define CLK_SEL_PLL2 (1 << 0)
+#define CLK_SEL_OSCI3 (2 << 0)
+
+#endif
diff --git a/arch/arm/include/asm/arch-spear13xx/sys_proto.h b/arch/arm/include/asm/arch-spear13xx/sys_proto.h
new file mode 100644
index 0000000..98b9a6b
--- /dev/null
+++ b/arch/arm/include/asm/arch-spear13xx/sys_proto.h
@@ -0,0 +1,34 @@
+/*
+ * (C) Copyright 2010
+ * Vipin Kumar, STMicroelectronics, <vipin.kumar at st.com>
+ *
+ * Based on arch/arm/include/asm/arch-omap3/sys_proto.h
+ *
+ * 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
+ */
+
+#ifndef _SYS_PROTO_H_
+#define _SYS_PROTO_H_
+
+u32 get_device_type(void);
+void invalidate_dcache(u32);
+void l2_cache_disable(void);
+void l2_cache_enable(void);
+
+#endif
--
1.6.0.2
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