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authorPeng Fan <peng.fan@nxp.com>2022-02-28 20:41:11 +0800
committerAbel Vesa <abel.vesa@nxp.com>2022-04-12 11:17:43 +0300
commit19565ea12d61c69ef2be97a97b426ba5c55572ff (patch)
tree8ba2366a7be9a8f5103037f2ac95db1e78bd7dc3 /virt
parentcdc86e473b353c8a026a337ee9fb9e1fbbe2276b (diff)
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clk: imx: add mcore_booted module paratemter
Add mcore_booted boot parameter which could simplify AMP clock management. To i.MX8M, there is CCM(clock control Module) to generate clock root clock, anatop(analog PLL module) to generate PLL, and CCGR (clock gating) to gate clocks to peripherals. As below: anatop->ccm->ccgr->peripheral Linux handles the clock management and the auxiliary core is under control of Linux. Although there is per hardware domain control for CCGR and CCM, auxiliary core normally only use CCGR hardware domain control to avoid linux gate off the clk to peripherals and leave CCM ana anatop to Linux. Per NXP hardware design, because CCGR already support gate to peripherals, and clk root gate power leakage is negligible. So when in AMP case, we could not register the clk root gate. Signed-off-by: Peng Fan <peng.fan@nxp.com> Reviewed-by: Abel Vesa <abel.vesa@nxp.com> Link: https://lore.kernel.org/r/20220228124112.3974242-1-peng.fan@oss.nxp.com Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
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