[coreboot-gerrit] Patch set updated for coreboot: 2941089 Google/Snow: Enable suspend/resume.
Hung-Te Lin (hungte@chromium.org)
gerrit at coreboot.org
Mon Apr 29 10:43:31 CEST 2013
Hung-Te Lin (hungte at chromium.org) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/3102
-gerrit
commit 29410893c9a0b653b51d96264abfb7c3bdfd97cd
Author: Hung-Te Lin <hungte at chromium.org>
Date: Thu Apr 25 19:49:40 2013 +0800
Google/Snow: Enable suspend/resume.
Add the suspend/resume feature into bootblock and romstage.
Note, resuming with X and touchpad driver may be still unstable.
Verified by building and booting successfully on Google/Snow, and then executing
the "suspend_stress_test" in text mode ("stop ui; suspend_stress_test") in
Chromium OS, passed at least 20 iterations.
Change-Id: I65681c42eeef2736e55bb906595f42a5b1dfdf11
Signed-off-by: Hung-Te Lin <hungte at chromium.org>
---
src/mainboard/google/snow/bootblock.c | 18 +++++++++++++-----
src/mainboard/google/snow/romstage.c | 13 ++++++++++---
2 files changed, 23 insertions(+), 8 deletions(-)
diff --git a/src/mainboard/google/snow/bootblock.c b/src/mainboard/google/snow/bootblock.c
index d2e0b50..09edbad 100644
--- a/src/mainboard/google/snow/bootblock.c
+++ b/src/mainboard/google/snow/bootblock.c
@@ -25,16 +25,24 @@
#include <console/console.h>
#include <cpu/samsung/exynos5250/periph.h>
#include <cpu/samsung/exynos5250/pinmux.h>
+#include "mainboard.h"
void bootblock_mainboard_init(void);
void bootblock_mainboard_init(void)
{
- /* kick off the microsecond timer. We want to do this as early
- * as we can.
- */
- timer_start();
+ switch (snow_get_wakeup_state()) {
+ case SNOW_WAKEUP_DIRECT:
+ snow_wakeup();
+ break;
- exynos_pinmux_config(PERIPH_ID_SPI1, PINMUX_FLAG_NONE);
+ case SNOW_IS_NOT_WAKEUP:
+ /* kick off the microsecond timer.
+ * We want to do this as early as we can.
+ */
+ timer_start();
+ exynos_pinmux_config(PERIPH_ID_SPI1, PINMUX_FLAG_NONE);
+ break;
+ }
#if CONFIG_EARLY_CONSOLE
exynos_pinmux_config(PERIPH_ID_UART3, PINMUX_FLAG_NONE);
console_init();
diff --git a/src/mainboard/google/snow/romstage.c b/src/mainboard/google/snow/romstage.c
index fd5cfce..f131e81 100644
--- a/src/mainboard/google/snow/romstage.c
+++ b/src/mainboard/google/snow/romstage.c
@@ -170,15 +170,22 @@ void main(void)
{
struct mem_timings *mem;
void *entry;
+ int is_resume = (snow_get_wakeup_state() != SNOW_IS_NOT_WAKEUP);
/* Clock must be initialized before console_init, otherwise you may need
* to re-initialize serial console drivers again. */
mem = snow_setup_clock();
- console_init();
- snow_setup_power();
+ if (!is_resume) {
+ console_init();
+ snow_setup_power();
+ }
+
+ snow_setup_memory(mem, is_resume);
- snow_setup_memory(mem, 0);
+ if (is_resume) {
+ snow_wakeup();
+ }
snow_setup_storage();
snow_setup_gpio();
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