diff options
| author | Christian Hemp <c.hemp@phytec.de> | 2013-07-23 10:39:17 +0200 |
|---|---|---|
| committer | Justin Waters <justin.waters@timesys.com> | 2013-11-07 12:19:35 -0500 |
| commit | 5b5a39005be0ce14428aa19ea37dd2d54cb3209f (patch) | |
| tree | a6df8299ae784a7e0b23f4b9e881d90614e424cb | |
| parent | c33d529516ac11c478dbc04a579f7c655f6d13c0 (diff) | |
phyFLEX-i.MX6: Add busfreq
The busfreq function support is in the kernel since:
commit 32ea8aa56866047e100c6600cf663aaf786d8dbe
Author: Ranjani Vaidyanathan <ra5478@freescale.com>
Date: Tue Feb 7 14:34:13 2012 -0600
|ENGR00179574: MX6- Add bus frequency scaling support
|
|Add support for scaling the bus frequency (both DDR
|and ahb_clk).
|The DDR and AHB_CLK are dropped to 24MHz when all devices
|that need high AHB frequency are disabled and the CORE
|frequency is at the lowest setpoint.
|The DDR is dropped to 400MHz for the video playback usecase.
|In this mode the GPU, FEC, SATA etc are disabled.
|
|To scale the bus frequency, its necessary that all cores
|except the core that is executing the DDR frequency change
|are in WFE. This is achieved by generating interrupts on
|un-used interrupts (Int no 139, 144, 145 and 146).
|
|Signed-off-by: Ranjani Vaidyanathan <ra5478@freescale.com>
Signed-off-by: Christian Hemp <c.hemp@phytec.de>
| -rw-r--r-- | arch/arm/mach-mx6/board-mx6q_phyflex.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/arm/mach-mx6/board-mx6q_phyflex.c b/arch/arm/mach-mx6/board-mx6q_phyflex.c index 075c43b5c0a2..d5462bccc514 100644 --- a/arch/arm/mach-mx6/board-mx6q_phyflex.c +++ b/arch/arm/mach-mx6/board-mx6q_phyflex.c @@ -1535,14 +1535,14 @@ static void __init mx6_phyflex_init(void) imx6q_add_mxc_pwm_backlight(0, &mx6_phyflex_pwm_backlight_data0); imx6q_add_mxc_pwm_backlight(1, &mx6_phyflex_pwm_backlight_data1); - /* PCI Express initialization */ - imx6q_add_pcie(&mx6_phyflex_pcie_data); - imx6q_add_perfmon(0); imx6q_add_perfmon(1); imx6q_add_perfmon(2); // imx6q_add_mlb150(&mx6_phyflex_mlb150_data); + /* PCI Express initialization */ + imx6q_add_pcie(&mx6_phyflex_pcie_data); + imx6q_add_busfreq(); /* 1-wire devices registration */ platform_device_register(&w1_device); |