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authorAlessandro Rubini <rubini@unipv.it>2009-01-24 18:10:37 +0100
committerJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>2009-01-24 18:10:37 +0100
commitd5254f149da9e6cd649d887b042ce577ef3ba78d (patch)
tree421281a124201c2460f99e30953dd8c177e9a57f /cpu/arm926ejs/nomadik/reset.S
parent7d264c1ef267cfc8d928bc8577a7cc907f2f5e47 (diff)
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Initial support for Nomadik 8815 development board
The NMDK8815 board is distributed by ST Microelectornics. Other (proprietary) code must be run to unlock the CPU before U-Boot runs. doc/README.nmdk8815 outlines the boot sequence. This is the initial port, with basic infrastructure and a working serial port. Signed-off-by: Alessandro Rubini <rubini@unipv.it> Acked-by: Andrea Gallo <andrea.gallo@stnwireless.com> Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Diffstat (limited to 'cpu/arm926ejs/nomadik/reset.S')
-rw-r--r--cpu/arm926ejs/nomadik/reset.S25
1 files changed, 25 insertions, 0 deletions
diff --git a/cpu/arm926ejs/nomadik/reset.S b/cpu/arm926ejs/nomadik/reset.S
new file mode 100644
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--- /dev/null
+++ b/cpu/arm926ejs/nomadik/reset.S
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+#include <config.h>
+/*
+ * Processor reset for Nomadik
+ */
+
+ .align 5
+.globl reset_cpu
+reset_cpu:
+#if defined CONFIG_NOMADIK_8815
+ ldr r0, =NOMADIK_SRC_BASE
+ ldr r1, =0x1
+ str r1, [r0, #0x18]
+#else
+ ldr r1, rstctl1 /* get clkm1 reset ctl */
+ mov r3, #0x0
+ strh r3, [r1] /* clear it */
+ mov r3, #0x8
+ strh r3, [r1] /* force dsp+arm reset */
+#endif
+
+_loop_forever:
+ b _loop_forever
+
+rstctl1:
+ .word 0xfffece10