mx6: clock: Fix the logic for reading axi_alt_sel

According to the IMX6DQRM Reference Manual, the description
of bit 7 (axi_alt_sel) of the CCM_CBCDR register is:

"AXI alternative clock select
0 pll2 396MHz PFD will be selected as alternative clock for AXI root clock
1 pll3 540MHz PFD will be selected as alternative clock for AXI root clock "

The current logic is inverted, so fix it to match the reference manual.

Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>

diff --git a/arch/arm/cpu/armv7/mx6/clock.c b/arch/arm/cpu/armv7/mx6/clock.c
index 9b4b69c..b3c9dcc 100644 (file)
--- a/arch/arm/cpu/armv7/mx6/clock.c
+++ b/arch/arm/cpu/armv7/mx6/clock.c
@@ -433,9 +433,9 @@ static u32 get_axi_clk(void)
 
        if (cbcdr & MXC_CCM_CBCDR_AXI_SEL) {
                if (cbcdr & MXC_CCM_CBCDR_AXI_ALT_SEL)
-                       root_freq = mxc_get_pll_pfd(PLL_BUS, 2);
-               else
                        root_freq = mxc_get_pll_pfd(PLL_USBOTG, 1);
+               else
+                       root_freq = mxc_get_pll_pfd(PLL_BUS, 2);
        } else
                root_freq = get_periph_clk();