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authorRyan Harkin <ryan.harkin@linaro.org>2013-04-09 02:20:31 +0000
committerAlbert ARIBAUD <albert.u.boot@aribaud.net>2013-05-23 11:22:44 +0200
commitcd4f46e1efbb33e1f087913088f3fbd68a1beb02 (patch)
tree459c472ae7a8e047376e7319956aef29c0ffa953 /board/armltd
parent9b58a3f606e46cb335d44458e53a37d9b221f785 (diff)
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ARM: vexpress: create A5 specific board config
This patch creates a new config for the A5 dual core tile that includes the generic config for the Versatile Express platform. The generic config has been modified to provide support for the Extended Memory Map, as used on the A5 core tile. A5 does not support the legacy memory map. Signed-off-by: Ryan Harkin <ryan.harkin@linaro.org> Signed-off-by: Andre Przywara <andre.przywara@linaro.org>
Diffstat (limited to 'board/armltd')
-rw-r--r--board/armltd/vexpress/vexpress_common.c29
1 files changed, 23 insertions, 6 deletions
diff --git a/board/armltd/vexpress/vexpress_common.c b/board/armltd/vexpress/vexpress_common.c
index c4f2520..2c54869 100644
--- a/board/armltd/vexpress/vexpress_common.c
+++ b/board/armltd/vexpress/vexpress_common.c
@@ -45,8 +45,7 @@
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 systimer *systimer_base = (struct systimer *)V2M_TIMER01;
static struct sysctrl *sysctrl_base = (struct sysctrl *)SCTL_BASE;
static void flash__init(void);
@@ -173,13 +172,31 @@ static void vexpress_timer_init(void)
reset_timer_masked();
}
+int v2m_cfg_write(u32 devfn, u32 data)
+{
+ /* Configuration interface broken? */
+ u32 val;
+
+ devfn |= SYS_CFG_START | SYS_CFG_WRITE;
+
+ val = readl(V2M_SYS_CFGSTAT);
+ writel(val & ~SYS_CFG_COMPLETE, V2M_SYS_CFGSTAT);
+
+ writel(data, V2M_SYS_CFGDATA);
+ writel(devfn, V2M_SYS_CFGCTRL);
+
+ do {
+ val = readl(V2M_SYS_CFGSTAT);
+ } while (val == 0);
+
+ return !!(val & SYS_CFG_ERR);
+}
+
/* 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)
- ;
+ if (v2m_cfg_write(SYS_CFG_REBOOT | SYS_CFG_SITE_MB, 0))
+ printf("Unable to reboot\n");
}
/*