[ECOS] [PATCH] resume from suspend support in Redboot for Assabet

[Nicolas Pitre]

Please apply to the CVS.

This has been tested for couple months now.

Note that the clearing of the PSSR_PH bit should be performed by the OS and
not by Redboot on wakeup events (the Compaq iPAQ code is wrong wrt this).

--- ecos/packages/hal/arm/sa11x0/assabet/current/include/hal_platform_setup.h.orig	Fri Oct 19 16:15:28 2001
+++ ecos/packages/hal/arm/sa11x0/assabet/current/include/hal_platform_setup.h	Fri Oct 19 16:14:51 2001
@@ -215,6 +215,17 @@
         .word   0, 0
 19:

+        // Wakeup from deep sleep mode
+        ldr     r1,=SA11X0_RESET_STATUS
+        ldr     r2,[r1]
+        cmp     r2,#SA11X0_SLEEP_MODE_RESET
+        bne     45f
+        ldr     r1,=SA11X0_PWR_MGR_SCRATCHPAD
+        ldr     r1,[r1]
+        mov     pc,r1
+        nop
+45:     nop
+
         // Release peripheral hold (set by RESET)
         ldr     r1,=SA11X0_PWR_MGR_SLEEP_STATUS
         ldr     r2,=SA11X0_PERIPHERAL_CONTROL_HOLD


Nicolas