Guard 'parent_rate==0' to prevent 'divide by zero' issue in
clk_pplv3_av_set_rate(). If it is 0, let's return with -EINVAL.
Signed-off-by: Giulio Benetti <giulio.benetti@benettiengineering.com>
Guard 'mfd==0' to prevent 'divide by zero' issue in
clk_pplv3_av_get_rate(). If it is 0, let's return with EIO since mfd
should never be 0 at all.
Signed-off-by: Giulio Benetti <giulio.benetti@benettiengineering.com>
Guard 'parent_rate==0' to prevent 'divide by zero' issue in
clk_pplv3_sys_get_rate(). If it is 0, let's return with -EINVAL.
Signed-off-by: Giulio Benetti <giulio.benetti@benettiengineering.com>
Add PLLV3_SYS support by adding set/get_rate() for PLLV3_SYS but keeping
generic enable()/disable(). Add a different driver because ops are
different respect to GENERIC/USB.
Signed-off-by: Giulio Benetti <giulio.benetti@benettiengineering.com>
Reviewed-by: Lukasz Majewski <lukma@denx.de>
Before set_rate() pllv3 needs enable() to power the pll up.
Add enable() taking into account different power_bit and
different powerup_set, because some pll needs its power_bit to be
set or reset to be powered on.
Signed-off-by: Giulio Benetti <giulio.benetti@benettiengineering.com>
div_mask is different for GENERIC and USB pll, so set it according.
Signed-off-by: Giulio Benetti <giulio.benetti@benettiengineering.com>
Reviewed-by: Lukasz Majewski <lukma@denx.de>
Better to register the 2 clock as 2 different drivers because they work
slightly differently depending on power_bit and powerup_set bits coming
on next patches.
Signed-off-by: Giulio Benetti <giulio.benetti@benettiengineering.com>
Reviewed-by: Lukasz Majewski <lukma@denx.de>
The 24MHz oscillator clock is referenced by "clock-osc-24m" and not
"osc_24m".
Signed-off-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Add set_parent callback, then assigned-clock-parents in dts could
be work.
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Tested-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Add enet ref/timer/PHY_REF/root clk which are required to make enet
function well.
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Tested-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Add i.MX8MM ccf driver support.
Modifed from Linux Kernel 5.3.0-rc1, drop some entries
that not used in U-Boot and adapt to U-Boot CCF style.
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Cc: Lukasz Majewski <lukma@denx.de>
This change adds support for I2C clock modeled in CCF. This code intention
is to only enable those clocks in the I2C driver with default settings.
For that reason the "busy" versions of clocks reuse the generic approach
and would need to be updated when one wants to adjust the I2C clock
frequency in U-Boot.
Signed-off-by: Lukasz Majewski <lukma@denx.de>
This patch brings the files from Linux kernel (linux-stable/linux-5.1.y
SHA1: 5752b50477da)to provide clocks support as it is used on the Linux
kernel with Common Clock Framework [CCF] setup.
The directory structure has been preserved. The ported code only supports
reading information from PLL, MUX, Divider, etc and enabling/disabling
the clocks USDHCx/ECSPIx depending on used bus. Moreover, it is agnostic
to the alias numbering as the information about the clock is read from the
device tree.
One needs to pay attention to the comments indicating necessary for U-Boot's
driver model changes.
If needed, the code can be extended to support the "set" part of the clock
management.
Signed-off-by: Lukasz Majewski <lukma@denx.de>
Trying to bring up uSDHC2 the following error message was observed:
MMC: imx8_clk_set_rate(Invalid clk ID #60)
imx8_clk_set_rate(Invalid clk ID #60)
usdhc@5b030000 - probe failed: -22
This commit fixes this by properly setting resp. clocks.
Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Reviewed-by: Max Krummenacher <max.krummenacher@toradex.com>
To make it easy to add new clk driver for i.MX8, split
the code into common part and SoC specific part.
Make the get/set/enable non static and introduce a num_clks for
soc_clk_dump, because the arrays are moved to clk-imx8qxp.c.
Signed-off-by: Peng Fan <peng.fan@nxp.com>
When build clk driver in spl, met the warning:
"
drivers/clk/imx/clk-imx8.c:21:25: warning: ‘imx8_clk_names’ defined but not used [-Wunused-variable]
static struct imx8_clks imx8_clk_names[] = {
^~~~~~~~~~~~~~
"
Fix with wrapping the array with CONFIG_CMD_CLK.
Signed-off-by: Peng Fan <peng.fan@nxp.com>
