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| author | Stefan Wahren <stefan.wahren@i2se.com> | 2015-05-21 11:20:17 +0000 |
|---|---|---|
| committer | Stefano Babic <sbabic@denx.de> | 2015-06-01 09:21:54 +0200 |
| commit | 7bbc5ff732bcf8d2aa935249ce4b7c28a701ca51 (patch) | |
| tree | 264b3b231ca9738075d0ee46cbbe6def1c71f7c8 /arch/arm/cpu | |
| parent | 68006aeb6d62343238578c6ea767907d63346aad (diff) | |
| download | u-boot-imx-7bbc5ff732bcf8d2aa935249ce4b7c28a701ca51.zip u-boot-imx-7bbc5ff732bcf8d2aa935249ce4b7c28a701ca51.tar.gz u-boot-imx-7bbc5ff732bcf8d2aa935249ce4b7c28a701ca51.tar.bz2 | |
mxs: Do not disable bo detection when DC-DC is already enabled
In case the DC-DC is already enabled mxs_enable_4p2_dcdc_input() returns
without reenabling brown out detection. So fix this issue by
moving the return before brown out deactivation.
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Diffstat (limited to 'arch/arm/cpu')
| -rw-r--r-- | arch/arm/cpu/arm926ejs/mxs/spl_power_init.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/arch/arm/cpu/arm926ejs/mxs/spl_power_init.c b/arch/arm/cpu/arm926ejs/mxs/spl_power_init.c index c342217..42f3df2 100644 --- a/arch/arm/cpu/arm926ejs/mxs/spl_power_init.c +++ b/arch/arm/cpu/arm926ejs/mxs/spl_power_init.c @@ -332,6 +332,11 @@ static void mxs_enable_4p2_dcdc_input(int xfer) debug("SPL: %s 4P2 DC-DC Input\n", xfer ? "Enabling" : "Disabling"); + if (xfer && (readl(&power_regs->hw_power_5vctrl) & + POWER_5VCTRL_ENABLE_DCDC)) { + return; + } + prev_5v_brnout = readl(&power_regs->hw_power_5vctrl) & POWER_5VCTRL_PWDN_5VBRNOUT; prev_5v_droop = readl(&power_regs->hw_power_ctrl) & @@ -343,11 +348,6 @@ static void mxs_enable_4p2_dcdc_input(int xfer) clrbits_le32(&power_regs->hw_power_ctrl, POWER_CTRL_ENIRQ_VDD5V_DROOP); - if (xfer && (readl(&power_regs->hw_power_5vctrl) & - POWER_5VCTRL_ENABLE_DCDC)) { - return; - } - /* * Recording orignal values that will be modified temporarlily * to handle a chip bug. See chip errata for CQ ENGR00115837 |