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| author | Anson Huang <b20788@freescale.com> | 2011-08-17 13:09:34 +0800 |
|---|---|---|
| committer | Anson Huang <b20788@freescale.com> | 2011-08-17 13:09:34 +0800 |
| commit | 7c6061fc2b18db8f748f9e667d793e380f74d355 (patch) | |
| tree | 766abc99dd461733bec94f22e2ff61b6cefb80b3 | |
| parent | c7cf313a6396c700bef9b278bc3ff8b346a3a2c1 (diff) | |
| download | u-boot-imx-7c6061fc2b18db8f748f9e667d793e380f74d355.zip u-boot-imx-7c6061fc2b18db8f748f9e667d793e380f74d355.tar.gz u-boot-imx-7c6061fc2b18db8f748f9e667d793e380f74d355.tar.bz2 | |
ENGR00154924 [MX6]Disable some clocks in uboot
We should disabel some clocks in uboot to save
power, or when we download from enet to boot up
kernel, the power consumption could be up 800mA@5V,
may damage the chip.
After apply it, we can save more then 200mA@5V.
Signed-off-by: Anson Huang <b20788@freescale.com>
| -rw-r--r-- | board/freescale/mx6q_sabreauto/lowlevel_init.S | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/board/freescale/mx6q_sabreauto/lowlevel_init.S b/board/freescale/mx6q_sabreauto/lowlevel_init.S index 467af57..a12a61a 100644 --- a/board/freescale/mx6q_sabreauto/lowlevel_init.S +++ b/board/freescale/mx6q_sabreauto/lowlevel_init.S @@ -70,16 +70,21 @@ #endif /* Restore the default values in the Gate registers */ - ldr r1, =0xFFFFFFFF ldr r0, CCM_BASE_ADDR_W + ldr r1, =0x3F str r1, [r0, #CLKCTL_CCGR0] + ldr r1, =0x30FC00 str r1, [r0, #CLKCTL_CCGR1] + ldr r1, =0xFFFC000 str r1, [r0, #CLKCTL_CCGR2] + ldr r1, =0x3FF00000 str r1, [r0, #CLKCTL_CCGR3] + ldr r1, =0xF300 str r1, [r0, #CLKCTL_CCGR4] + ldr r1, =0xF0000C3 str r1, [r0, #CLKCTL_CCGR5] + ldr r1, =0x3C0 str r1, [r0, #CLKCTL_CCGR6] - str r1, [r0, #CLKCTL_CCGR7] .endm |