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path: root/arch/arm/cpu/armv7/mx7/clock_slice.c
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2016-05-17imx: imx7d: fix ahb clock mux 1Stefan Agner
The clock parent of the AHB root clock when using mux option 1 is the SYS PLL 270MHz clock. This is specified in Table 5-11 Clock Root Table of the i.MX 7Dual Applications Processor Reference Manual. While it could be a documentation error, the 270MHz parent is also mentioned in the boot ROM configuration in Table 6-28: The clock is by default at 135MHz due to a POST_PODF value of 1 (=> divider of 2). Signed-off-by: Stefan Agner <stefan@agner.ch>
2015-09-13imx: imx7d: clock control module supportAdrian Alonso
* Add Clock control module (CCM) support * iMX7D SoC introduces 3 main clock sysmtem abstraction for clock root frequency generation denominated clock slices. Core clock slice: hihg speed clock for ARM core Bus clock slice: for bus clocks IP clock slice: Peripheral clocks * At system boot ROM enables PLL_ARM, PLL_DDR, PLL_SYS, PLL_ENET In u-boot, we have to: - Configure PFD3- PFD7 for freq we needed in u-boot - Set clock root for peripherals (ip channel) Signed-off-by: Adrian Alonso <aalonso@freescale.com> Signed-off-by: Peng Fan <Peng.Fan@freescale.com> Signed-off-by: Ye.Li <B37916@freescale.com>