[PATCH v2 1/2] ARM: arch timer: implement read_current_timer and get_cycles

[PATCH v2 0/2] Use architected timers for delay loop · Will Deacon <hidden> · 2012-06-29
[PATCH v2 1/2] ARM: arch timer: implement read_current_timer and get_cycles · Will Deacon <hidden> · 2012-06-29
[PATCH v2 1/2] ARM: arch timer: implement read_current_timer and get_cycles · Stephen Boyd <hidden> · 2012-07-02
[PATCH v2 1/2] ARM: arch timer: implement read_current_timer and get_cycles · Shinya Kuribayashi <hidden> · 2012-07-05
[PATCH v2 1/2] ARM: arch timer: implement read_current_timer and get_cycles · Will Deacon <hidden> · 2012-07-05
[PATCH v2 2/2] ARM: delay: allow timer-based delay implementation to be selected · Will Deacon <hidden> · 2012-06-29
[PATCH v2 2/2] ARM: delay: allow timer-based delay implementation to be selected · Stephen Boyd <hidden> · 2012-07-02
[PATCH v2 2/2] ARM: delay: allow timer-based delay implementation to be selected · Will Deacon <hidden> · 2012-07-02
[PATCH v2 2/2] ARM: delay: allow timer-based delay implementation to be selected · Shinya Kuribayashi <hidden> · 2012-07-03
[PATCH v2 2/2] ARM: delay: allow timer-based delay implementation to be selected · Will Deacon <hidden> · 2012-07-04
[PATCH v2 2/2] ARM: delay: allow timer-based delay implementation to be selected · Shinya Kuribayashi <hidden> · 2012-07-05
[PATCH v2 2/2] ARM: delay: allow timer-based delay implementation to be selected · Will Deacon <hidden> · 2012-07-05
[PATCH v2 2/2] ARM: delay: allow timer-based delay implementation to be selected · Stephen Boyd <hidden> · 2012-07-05
[PATCH v2 2/2] ARM: delay: allow timer-based delay implementation to be selected · Shinya Kuribayashi <hidden> · 2012-07-05
[PATCH v2 2/2] ARM: delay: allow timer-based delay implementation to be selected · Will Deacon <hidden> · 2012-07-05
[PATCH v2 2/2] ARM: delay: allow timer-based delay implementation to be selected · Shinya Kuribayashi <hidden> · 2012-07-12
[PATCH v2 2/2] ARM: delay: allow timer-based delay implementation to be selected · Will Deacon <hidden> · 2012-07-12
[PATCH v2 2/2] ARM: delay: allow timer-based delay implementation to be selected · Shinya Kuribayashi <hidden> · 2012-07-12
[PATCH v2 2/2] ARM: delay: allow timer-based delay implementation to be selected · Stephen Boyd <hidden> · 2012-07-12
[PATCH v2 2/2] ARM: delay: allow timer-based delay implementation to be selected · Shinya Kuribayashi <hidden> · 2012-07-13
[PATCH v2 2/2] ARM: delay: allow timer-based delay implementation to be selected · Will Deacon <hidden> · 2012-07-13
[PATCH v2 2/2] ARM: delay: allow timer-based delay implementation to be selected · Shilimkar, Santosh <hidden> · 2012-07-13
[PATCH v2 2/2] ARM: delay: allow timer-based delay implementation to be selected · Will Deacon <hidden> · 2012-07-13
[PATCH v2 2/2] ARM: delay: allow timer-based delay implementation to be selected · Shilimkar, Santosh <hidden> · 2012-07-13
[PATCH v2 2/2] ARM: delay: allow timer-based delay implementation to be selected · Will Deacon <hidden> · 2012-07-13
[PATCH v2 2/2] ARM: delay: allow timer-based delay implementation to be selected · Shilimkar, Santosh <hidden> · 2012-07-13
[PATCH v2 2/2] ARM: delay: allow timer-based delay implementation to be selected · Will Deacon <hidden> · 2012-07-13
[PATCH v2 2/2] ARM: delay: allow timer-based delay implementation to be selected · Shilimkar, Santosh <hidden> · 2012-07-13
[PATCH v2 2/2] ARM: delay: allow timer-based delay implementation to be selected · Shinya Kuribayashi <hidden> · 2012-07-17
[PATCH v2 2/2] ARM: delay: allow timer-based delay implementation to be selected · Shilimkar, Santosh <hidden> · 2012-07-17
[PATCH v2 2/2] ARM: delay: allow timer-based delay implementation to be selected · Shinya Kuribayashi <hidden> · 2012-07-17
[PATCH v2 2/2] ARM: delay: allow timer-based delay implementation to be selected · Will Deacon <hidden> · 2012-07-17
[PATCH v2 2/2] ARM: delay: allow timer-based delay implementation to be selected · Shinya Kuribayashi <hidden> · 2012-07-19
[PATCH v2 2/2] ARM: delay: allow timer-based delay implementation to be selected · Will Deacon <hidden> · 2012-07-18
[PATCH v2 2/2] ARM: delay: allow timer-based delay implementation to be selected · Jonathan Austin <hidden> · 2012-07-19
[PATCH v2 2/2] ARM: delay: allow timer-based delay implementation to be selected · Will Deacon <hidden> · 2012-07-20
[PATCH v2 2/2] ARM: delay: allow timer-based delay implementation to be selected · Shinya Kuribayashi <hidden> · 2012-07-24
[PATCH v2 2/2] ARM: delay: allow timer-based delay implementation to be selected · Will Deacon <hidden> · 2012-07-24

STALE5065d REVIEWED: 1 (0M)

From: Stephen Boyd <hidden>
Date: 2012-07-02 19:14:55

On 06/29/12 10:33, Will Deacon wrote:

This patch implements read_current_timer using the architected timers
when they are selected via CONFIG_ARM_ARCH_TIMER. If they are detected
not to be usable at runtime, we return -ENXIO to the caller.

Furthermore, if read_current_timer is exported then we can implement
get_cycles in terms of it for use as both an entropy source and for
implementing __udelay and friends.

Signed-off-by: Will Deacon <redacted>

Reviewed-by: Stephen Boyd <redacted>

-- 
Sent by an employee of the Qualcomm Innovation Center, Inc.
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum.

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