From: b.zolnierkie@samsung.com (Bartlomiej Zolnierkiewicz)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v5 2/5] ARM: EXYNOS: add AFTR mode support to firmware do_idle method
Date: Tue, 05 Aug 2014 15:34:23 +0200 [thread overview]
Message-ID: <1407245666-20016-3-git-send-email-b.zolnierkie@samsung.com> (raw)
In-Reply-To: <1407245666-20016-1-git-send-email-b.zolnierkie@samsung.com>
On some platforms (i.e. EXYNOS ones) more than one idle mode is
available and we need to distinguish them in firmware do_idle method.
Add mode parameter to do_idle firmware method and AFTR mode support
to EXYNOS do_idle implementation.
This change is a preparation for adding secure firmware support to
EXYNOS cpuidle driver.
This patch shouldn't cause any functionality changes (please note
that do_idle firmware method is unused currently).
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
---
arch/arm/include/asm/firmware.h | 2 +-
arch/arm/mach-exynos/common.h | 5 +++++
arch/arm/mach-exynos/firmware.c | 10 ++++++++--
3 files changed, 14 insertions(+), 3 deletions(-)
diff --git a/arch/arm/include/asm/firmware.h b/arch/arm/include/asm/firmware.h
index 5904f59..89aefe1 100644
--- a/arch/arm/include/asm/firmware.h
+++ b/arch/arm/include/asm/firmware.h
@@ -28,7 +28,7 @@ struct firmware_ops {
/*
* Enters CPU idle mode
*/
- int (*do_idle)(void);
+ int (*do_idle)(unsigned long mode);
/*
* Sets boot address of specified physical CPU
*/
diff --git a/arch/arm/mach-exynos/common.h b/arch/arm/mach-exynos/common.h
index c218200..2d830df 100644
--- a/arch/arm/mach-exynos/common.h
+++ b/arch/arm/mach-exynos/common.h
@@ -119,6 +119,11 @@ extern void __iomem *sysram_base_addr;
extern void __iomem *pmu_base_addr;
void exynos_sysram_init(void);
+enum {
+ FW_DO_IDLE_SLEEP,
+ FW_DO_IDLE_AFTR,
+};
+
void exynos_firmware_init(void);
extern u32 exynos_get_eint_wake_mask(void);
diff --git a/arch/arm/mach-exynos/firmware.c b/arch/arm/mach-exynos/firmware.c
index f5e626d..e57b7c3 100644
--- a/arch/arm/mach-exynos/firmware.c
+++ b/arch/arm/mach-exynos/firmware.c
@@ -28,9 +28,15 @@
#define EXYNOS_BOOT_ADDR 0x8
#define EXYNOS_BOOT_FLAG 0xc
-static int exynos_do_idle(void)
+static int exynos_do_idle(unsigned long mode)
{
- exynos_smc(SMC_CMD_SLEEP, 0, 0, 0);
+ switch (mode) {
+ case FW_DO_IDLE_AFTR:
+ exynos_smc(SMC_CMD_CPU0AFTR, 0, 0, 0);
+ break;
+ case FW_DO_IDLE_SLEEP:
+ exynos_smc(SMC_CMD_SLEEP, 0, 0, 0);
+ }
return 0;
}
--
1.8.2.3
next prev parent reply other threads:[~2014-08-05 13:34 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-05 13:34 [PATCH v5 0/5] ARM: EXYNOS: cpuidle: fix AFTR mode on boards with secure firmware enabled Bartlomiej Zolnierkiewicz
2014-08-05 13:34 ` [PATCH v5 1/5] ARM: EXYNOS: PM: replace EXYNOS_BOOT_VECTOR_* macros by static inlines Bartlomiej Zolnierkiewicz
2014-08-05 13:34 ` Bartlomiej Zolnierkiewicz [this message]
2014-08-05 13:34 ` [PATCH v5 3/5] ARM: EXYNOS: cpuidle: add secure firmware support to AFTR mode code Bartlomiej Zolnierkiewicz
2014-08-05 13:34 ` [PATCH v5 4/5] ARM: EXYNOS: PM: fix register setup for " Bartlomiej Zolnierkiewicz
2014-08-05 13:34 ` [PATCH v5 5/5] ARM: EXYNOS: cpuidle: allow driver usage on Exynos4x12 SoCs Bartlomiej Zolnierkiewicz
2014-08-05 13:50 ` [PATCH v5 0/5] ARM: EXYNOS: cpuidle: fix AFTR mode on boards with secure firmware enabled Daniel Lezcano
2014-08-07 17:18 ` Bartlomiej Zolnierkiewicz
2014-08-05 14:03 ` Daniel Lezcano
2014-08-05 14:26 ` Krzysztof Kozlowski
2014-08-05 15:07 ` Daniel Lezcano
2014-09-05 12:28 ` Krzysztof Kozlowski
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1407245666-20016-3-git-send-email-b.zolnierkie@samsung.com \
--to=b.zolnierkie@samsung.com \
--cc=linux-arm-kernel@lists.infradead.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).