ARMV7: Versatile Express Coretile CortexA9x4 support
Adds support for the ARM quad-core Cortex-A9 processor
This system includes a motherboard(Versatile Express), daughterboard
(Coretile), and SOC(Cortex-A9 quad core). The serial port, ethernet,
and flash systems work with these additions. The naming convention
is:
SOC -> CortexA9 quad core = ca9x4
daughterboard -> Coretile = ct
motherboard -> Versatile Express = vxp
This gives ca9x4_ct_vxp.c as the board support file.
Signed-off-by: Matt Waddel <matt.waddel@linaro.org>
diff --git a/board/armltd/vexpress/Makefile b/board/armltd/vexpress/Makefile
new file mode 100644
index 0000000..ee5c0d8
--- /dev/null
+++ b/board/armltd/vexpress/Makefile
@@ -0,0 +1,49 @@
+#
+# (C) Copyright 2000-2004
+# Wolfgang Denk, DENX Software Engineering, wd@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 = $(obj)lib$(BOARD).a
+
+COBJS := ca9x4_ct_vxp.o
+
+SRCS := $(COBJS:.o=.c)
+OBJS := $(addprefix $(obj),$(COBJS))
+
+$(LIB): $(obj).depend $(OBJS)
+ $(AR) $(ARFLAGS) $@ $(OBJS)
+
+clean:
+ rm -f $(SOBJS) $(OBJS)
+
+distclean: clean
+ rm -f $(LIB) core *.bak $(obj).depend
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/board/armltd/vexpress/ca9x4_ct_vxp.c b/board/armltd/vexpress/ca9x4_ct_vxp.c
new file mode 100644
index 0000000..48dfc8c
--- /dev/null
+++ b/board/armltd/vexpress/ca9x4_ct_vxp.c
@@ -0,0 +1,220 @@
+/*
+ * (C) Copyright 2002
+ * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
+ * Marius Groeger <mgroeger@sysgo.de>
+ *
+ * (C) Copyright 2002
+ * David Mueller, ELSOFT AG, <d.mueller@elsoft.ch>
+ *
+ * (C) Copyright 2003
+ * Texas Instruments, <www.ti.com>
+ * Kshitij Gupta <Kshitij@ti.com>
+ *
+ * (C) Copyright 2004
+ * ARM Ltd.
+ * Philippe Robin, <philippe.robin@arm.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 <netdev.h>
+#include <asm/io.h>
+#include <asm/arch/systimer.h>
+#include <asm/arch/sysctrl.h>
+#include <asm/arch/wdt.h>
+
+static ulong timestamp;
+static ulong lastdec;
+
+static struct wdt *wdt_base = (struct wdt *)WDT_BASE;
+static struct systimer *systimer_base = (struct systimer *)SYSTIMER_BASE;
+static struct sysctrl *sysctrl_base = (struct sysctrl *)SCTL_BASE;
+
+static void flash__init(void);
+static void vexpress_timer_init(void);
+DECLARE_GLOBAL_DATA_PTR;
+
+#if defined(CONFIG_SHOW_BOOT_PROGRESS)
+void show_boot_progress(int progress)
+{
+ printf("Boot reached stage %d\n", progress);
+}
+#endif
+
+static inline void delay(ulong loops)
+{
+ __asm__ volatile ("1:\n"
+ "subs %0, %1, #1\n"
+ "bne 1b" : "=r" (loops) : "0" (loops));
+}
+
+int board_init(void)
+{
+ gd->bd->bi_boot_params = LINUX_BOOT_PARAM_ADDR;
+ gd->bd->bi_arch_number = MACH_TYPE_VEXPRESS;
+ gd->flags = 0;
+
+ icache_enable();
+ flash__init();
+ vexpress_timer_init();
+
+ return 0;
+}
+
+int board_eth_init(bd_t *bis)
+{
+ int rc = 0;
+#ifdef CONFIG_SMC911X
+ rc = smc911x_initialize(0, CONFIG_SMC911X_BASE);
+#endif
+ return rc;
+}
+
+static void flash__init(void)
+{
+ /* Setup the sytem control register to allow writing to flash */
+ writel(readl(&sysctrl_base->scflashctrl) | VEXPRESS_FLASHPROG_FLVPPEN,
+ &sysctrl_base->scflashctrl);
+}
+
+int dram_init(void)
+{
+ gd->ram_size = get_ram_size(CONFIG_SYS_SDRAM_BASE, PHYS_SDRAM_1_SIZE);
+ return 0;
+}
+
+void dram_init_banksize(void)
+{
+ gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
+ gd->bd->bi_dram[0].size = get_ram_size(PHYS_SDRAM_1, PHYS_SDRAM_1_SIZE);
+ gd->bd->bi_dram[1].start = PHYS_SDRAM_2;
+ gd->bd->bi_dram[1].size = get_ram_size(PHYS_SDRAM_2, PHYS_SDRAM_2_SIZE);
+}
+
+int timer_init(void)
+{
+ return 0;
+}
+
+/*
+ * Start timer:
+ * Setup a 32 bit timer, running at 1KHz
+ * Versatile Express Motherboard provides 1 MHz timer
+ */
+static void vexpress_timer_init(void)
+{
+ /*
+ * Set clock frequency in system controller:
+ * VEXPRESS_REFCLK is 32KHz
+ * VEXPRESS_TIMCLK is 1MHz
+ */
+ writel(SP810_TIMER0_ENSEL | SP810_TIMER1_ENSEL |
+ SP810_TIMER2_ENSEL | SP810_TIMER3_ENSEL |
+ readl(&sysctrl_base->scctrl), &sysctrl_base->scctrl);
+
+ /*
+ * Set Timer0 to be:
+ * Enabled, free running, no interrupt, 32-bit, wrapping
+ */
+ writel(SYSTIMER_RELOAD, &systimer_base->timer0load);
+ writel(SYSTIMER_RELOAD, &systimer_base->timer0value);
+ writel(SYSTIMER_EN | SYSTIMER_32BIT | \
+ readl(&systimer_base->timer0control), \
+ &systimer_base->timer0control);
+
+ reset_timer_masked();
+}
+
+/* Use the ARM Watchdog System to cause reset */
+void reset_cpu(ulong addr)
+{
+ writeb(WDT_EN, &wdt_base->wdogcontrol);
+ writel(WDT_RESET_LOAD, &wdt_base->wdogload);
+ while (1)
+ ;
+}
+
+/*
+ * Delay x useconds AND perserve advance timstamp value
+ * assumes timer is ticking at 1 msec
+ */
+void udelay(ulong usec)
+{
+ ulong tmo, tmp;
+
+ tmo = usec / 1000;
+ tmp = get_timer(0); /* get current timestamp */
+
+ /*
+ * If setting this forward will roll time stamp then
+ * reset "advancing" timestamp to 0 and set lastdec value
+ * otherwise set the advancing stamp to the wake up time
+ */
+ if ((tmo + tmp + 1) < tmp)
+ reset_timer_masked();
+ else
+ tmo += tmp;
+
+ while (get_timer_masked() < tmo)
+ ; /* loop till wakeup event */
+}
+
+ulong get_timer(ulong base)
+{
+ return get_timer_masked() - base;
+}
+
+void reset_timer_masked(void)
+{
+ lastdec = readl(&systimer_base->timer0value) / 1000;
+ timestamp = 0;
+}
+
+void reset_timer(void)
+{
+ reset_timer_masked();
+}
+
+ulong get_timer_masked(void)
+{
+ ulong now = readl(&systimer_base->timer0value) / 1000;
+
+ if (lastdec >= now) { /* normal mode (non roll) */
+ timestamp += lastdec - now;
+ } else { /* count down timer overflowed */
+ /*
+ * nts = ts + ld - now
+ * ts = old stamp, ld = time before passing through - 1
+ * now = amount of time after passing though - 1
+ * nts = new "advancing time stamp"
+ */
+ timestamp += lastdec + SYSTIMER_RELOAD - now;
+ }
+ lastdec = now;
+
+ return timestamp;
+}
+
+void lowlevel_init(void)
+{
+}
+
+ulong get_board_rev(void){
+ return readl((u32 *)SYS_ID);
+}
diff --git a/board/armltd/vexpress/config.mk b/board/armltd/vexpress/config.mk
new file mode 100644
index 0000000..2d797d7
--- /dev/null
+++ b/board/armltd/vexpress/config.mk
@@ -0,0 +1,23 @@
+#
+# 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
+#
+# Linux-Kernel is expected to be at 0x60008000
+#
+TEXT_BASE = 0x60800000
+LDSCRIPT := $(SRCTREE)/board/armltd/vexpress/u-boot.lds
diff --git a/board/armltd/vexpress/u-boot.lds b/board/armltd/vexpress/u-boot.lds
new file mode 100644
index 0000000..5ac62f2
--- /dev/null
+++ b/board/armltd/vexpress/u-boot.lds
@@ -0,0 +1,65 @@
+/*
+ * (C) Copyright 2002
+ * Gary Jennejohn, DENX Software Engineering, <gj@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
+ */
+OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm")
+OUTPUT_ARCH(arm)
+ENTRY(_start)
+SECTIONS
+{
+ . = 0x00000000;
+ . = ALIGN(4);
+ .text :
+ {
+ arch/arm/cpu/armv7/start.o (.text)
+ *(.text)
+ }
+
+ . = ALIGN(4);
+ .rodata : { *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata))) }
+
+ . = ALIGN(4);
+ .data : { *(.data)
+ __datarel_start = .;
+ *(.data.rel)
+ __datarelrolocal_start = .;
+ *(.data.rel.ro.local)
+ __datarellocal_start = .;
+ *(.data.rel.local)
+ __datarelro_start = .;
+ *(.data.rel.ro)
+ }
+
+ __got_start = .;
+ . = ALIGN(4);
+ .got : { *(.got) }
+ __got_end = .;
+
+ . = .;
+ __u_boot_cmd_start = .;
+ .u_boot_cmd : { *(.u_boot_cmd) }
+ __u_boot_cmd_end = .;
+
+ . = ALIGN(4);
+ __bss_start = .;
+ .bss : { *(.bss) }
+ _end = .;
+}