* [U-Boot] [PATCH] armv8:ls1012a: Update bootargs for fast-boot
@ 2016-10-10 13:15 Pratiyush Srivastava
2016-10-10 14:57 ` york sun
2016-11-23 0:50 ` york sun
0 siblings, 2 replies; 4+ messages in thread
From: Pratiyush Srivastava @ 2016-10-10 13:15 UTC (permalink / raw)
To: u-boot
Add optimization parameters like "quiet" in bootargs to reduce the system
boot time
Signed-off-by: Pratiyush Mohan Srivastava <pratiyush.srivastava@nxp.com>
Signed-off-by: Harninder Rai <harninder.rai@nxp.com>
---
include/configs/ls1012a_common.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/configs/ls1012a_common.h b/include/configs/ls1012a_common.h
index 5fb6c47..a0ef2cd 100644
--- a/include/configs/ls1012a_common.h
+++ b/include/configs/ls1012a_common.h
@@ -120,7 +120,7 @@
"console=ttyAMA0,38400n8\0"
#define CONFIG_BOOTARGS "console=ttyS0,115200 root=/dev/ram0 " \
- "earlycon=uart8250,mmio,0x21c0500"
+ "earlycon=uart8250,mmio,0x21c0500 quiet lpj=250000"
#define CONFIG_BOOTCOMMAND "sf probe 0:0; sf read $kernel_load "\
"$kernel_start $kernel_size && "\
"bootm $kernel_load"
--
2.7.4
^ permalink raw reply related [flat|nested] 4+ messages in thread
* [U-Boot] [PATCH] armv8:ls1012a: Update bootargs for fast-boot
2016-10-10 13:15 [U-Boot] [PATCH] armv8:ls1012a: Update bootargs for fast-boot Pratiyush Srivastava
@ 2016-10-10 14:57 ` york sun
2016-10-11 13:43 ` Harninder Rai
2016-11-23 0:50 ` york sun
1 sibling, 1 reply; 4+ messages in thread
From: york sun @ 2016-10-10 14:57 UTC (permalink / raw)
To: u-boot
On 10/10/2016 12:36 AM, Pratiyush Srivastava wrote:
> Add optimization parameters like "quiet" in bootargs to reduce the system
> boot time
>
> Signed-off-by: Pratiyush Mohan Srivastava <pratiyush.srivastava@nxp.com>
> Signed-off-by: Harninder Rai <harninder.rai@nxp.com>
> ---
> include/configs/ls1012a_common.h | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/include/configs/ls1012a_common.h b/include/configs/ls1012a_common.h
> index 5fb6c47..a0ef2cd 100644
> --- a/include/configs/ls1012a_common.h
> +++ b/include/configs/ls1012a_common.h
> @@ -120,7 +120,7 @@
> "console=ttyAMA0,38400n8\0"
>
> #define CONFIG_BOOTARGS "console=ttyS0,115200 root=/dev/ram0 " \
> - "earlycon=uart8250,mmio,0x21c0500"
> + "earlycon=uart8250,mmio,0x21c0500 quiet lpj=250000"
> #define CONFIG_BOOTCOMMAND "sf probe 0:0; sf read $kernel_load "\
> "$kernel_start $kernel_size && "\
> "bootm $kernel_load"
>
How much improvement do you get by using "quiet"? You didn't mention lpj
in the commit message. Did you get the number from kernel log? LS1012A
is a single core SoC. How much time do you save by setting lpj?
York
^ permalink raw reply [flat|nested] 4+ messages in thread
* [U-Boot] [PATCH] armv8:ls1012a: Update bootargs for fast-boot
2016-10-10 14:57 ` york sun
@ 2016-10-11 13:43 ` Harninder Rai
0 siblings, 0 replies; 4+ messages in thread
From: Harninder Rai @ 2016-10-11 13:43 UTC (permalink / raw)
To: u-boot
>
> How much improvement do you get by using "quiet"?
We see around 3-4 seconds being saved on ls1012
You didn't mention lpj
> in the commit message. Did you get the number from kernel log? LS1012A is
> a single core SoC. How much time do you save by setting lpj?
Yes, we got the number from kernel log. I don't exactly remember how much but I think it was couple of 10's of milliseconds
>
> York
^ permalink raw reply [flat|nested] 4+ messages in thread
* [U-Boot] [PATCH] armv8:ls1012a: Update bootargs for fast-boot
2016-10-10 13:15 [U-Boot] [PATCH] armv8:ls1012a: Update bootargs for fast-boot Pratiyush Srivastava
2016-10-10 14:57 ` york sun
@ 2016-11-23 0:50 ` york sun
1 sibling, 0 replies; 4+ messages in thread
From: york sun @ 2016-11-23 0:50 UTC (permalink / raw)
To: u-boot
On 10/10/2016 12:36 AM, Pratiyush Srivastava wrote:
> Add optimization parameters like "quiet" in bootargs to reduce the system
> boot time
>
> Signed-off-by: Pratiyush Mohan Srivastava <pratiyush.srivastava@nxp.com>
> Signed-off-by: Harninder Rai <harninder.rai@nxp.com>
> ---
Applied to fsl-qoriq, awaiting upstream. Thanks.
York
^ permalink raw reply [flat|nested] 4+ messages in thread
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2016-10-10 13:15 [U-Boot] [PATCH] armv8:ls1012a: Update bootargs for fast-boot Pratiyush Srivastava
2016-10-10 14:57 ` york sun
2016-10-11 13:43 ` Harninder Rai
2016-11-23 0:50 ` york sun
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