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linux-next/arch/arm/boot/dts/omap4-mcpdm.dtsi

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ARM: dts: Add common mcpdm dts file for omap4 The mcpdm module found on omap4 and 5 needs pdmclk clock from the pmic that may or may not be wired. Without this clock we cannot read the registers for mcpdm at all. For the external mcpdm clock to work, it needs to be muxed at the module level for ti-sysc driver probe to mux it early enough for probe. Let's set up a common file for it to make things a bit easier to make l4 abe interconnect to probe with ti-sysc driver. Note that this is not needed for omap5 as we can just update mcpdm muxing in omap5-board-common.dtsi in later patches. Cc: devicetree@vger.kernel.org Cc: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-04-10 00:00:53 +08:00
// SPDX-License-Identifier: GPL-2.0
/*
* Common omap4 mcpdm configuration
*
* Only include this file if your board has pdmclk wired from the
* pmic to ABE as mcpdm uses an external clock for the module.
*/
&omap4_pmx_core {
mcpdm_pins: pinmux_mcpdm_pins {
pinctrl-single,pins = <
/* 0x4a100106 abe_pdm_ul_data.abe_pdm_ul_data ag25 */
OMAP4_IOPAD(0x106, PIN_INPUT_PULLDOWN | MUX_MODE0)
/* 0x4a100108 abe_pdm_dl_data.abe_pdm_dl_data af25 */
OMAP4_IOPAD(0x108, PIN_INPUT_PULLDOWN | MUX_MODE0)
/* 0x4a10010a abe_pdm_frame.abe_pdm_frame ae25 */
OMAP4_IOPAD(0x10a, PIN_INPUT_PULLUP | MUX_MODE0)
/* 0x4a10010c abe_pdm_lb_clk.abe_pdm_lb_clk af26 */
OMAP4_IOPAD(0x10c, PIN_INPUT_PULLDOWN | MUX_MODE0)
/* 0x4a10010e abe_clks.abe_clks ah26 */
OMAP4_IOPAD(0x10e, PIN_INPUT_PULLDOWN | MUX_MODE0)
>;
};
};
ARM: dts: Add l4 abe interconnect hierarchy and ti-sysc data for omap4 We can now add l4 abe interconnect hierarchy and ti-sysc data with ti-sysc driver supporting external optional clocks needed by mcpdm. This data is generated based on platform data from a booted system and the interconnect acces protection registers for ranges. To avoid regressions, we initially validate the device tree provided data against the existing platform data on boot. Note that mcpdm we now need to enable at module level only for devices that have the external pdmclk wired from the PMIC as the clock is needed for the module to be accessible. Cc: devicetree@vger.kernel.org Cc: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-04-10 00:00:53 +08:00
&mcpdm_module {
/*
* McPDM pads must be muxed at the interconnect target module
* level as the module on the SoC needs external clock from
* the PMIC
*/
ARM: dts: Add common mcpdm dts file for omap4 The mcpdm module found on omap4 and 5 needs pdmclk clock from the pmic that may or may not be wired. Without this clock we cannot read the registers for mcpdm at all. For the external mcpdm clock to work, it needs to be muxed at the module level for ti-sysc driver probe to mux it early enough for probe. Let's set up a common file for it to make things a bit easier to make l4 abe interconnect to probe with ti-sysc driver. Note that this is not needed for omap5 as we can just update mcpdm muxing in omap5-board-common.dtsi in later patches. Cc: devicetree@vger.kernel.org Cc: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-04-10 00:00:53 +08:00
pinctrl-names = "default";
pinctrl-0 = <&mcpdm_pins>;
ARM: dts: Add l4 abe interconnect hierarchy and ti-sysc data for omap4 We can now add l4 abe interconnect hierarchy and ti-sysc data with ti-sysc driver supporting external optional clocks needed by mcpdm. This data is generated based on platform data from a booted system and the interconnect acces protection registers for ranges. To avoid regressions, we initially validate the device tree provided data against the existing platform data on boot. Note that mcpdm we now need to enable at module level only for devices that have the external pdmclk wired from the PMIC as the clock is needed for the module to be accessible. Cc: devicetree@vger.kernel.org Cc: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-04-10 00:00:53 +08:00
status = "okay";
};
ARM: dts: Add common mcpdm dts file for omap4 The mcpdm module found on omap4 and 5 needs pdmclk clock from the pmic that may or may not be wired. Without this clock we cannot read the registers for mcpdm at all. For the external mcpdm clock to work, it needs to be muxed at the module level for ti-sysc driver probe to mux it early enough for probe. Let's set up a common file for it to make things a bit easier to make l4 abe interconnect to probe with ti-sysc driver. Note that this is not needed for omap5 as we can just update mcpdm muxing in omap5-board-common.dtsi in later patches. Cc: devicetree@vger.kernel.org Cc: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-04-10 00:00:53 +08:00
ARM: dts: Add l4 abe interconnect hierarchy and ti-sysc data for omap4 We can now add l4 abe interconnect hierarchy and ti-sysc data with ti-sysc driver supporting external optional clocks needed by mcpdm. This data is generated based on platform data from a booted system and the interconnect acces protection registers for ranges. To avoid regressions, we initially validate the device tree provided data against the existing platform data on boot. Note that mcpdm we now need to enable at module level only for devices that have the external pdmclk wired from the PMIC as the clock is needed for the module to be accessible. Cc: devicetree@vger.kernel.org Cc: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-04-10 00:00:53 +08:00
&mcpdm {
ARM: dts: Add common mcpdm dts file for omap4 The mcpdm module found on omap4 and 5 needs pdmclk clock from the pmic that may or may not be wired. Without this clock we cannot read the registers for mcpdm at all. For the external mcpdm clock to work, it needs to be muxed at the module level for ti-sysc driver probe to mux it early enough for probe. Let's set up a common file for it to make things a bit easier to make l4 abe interconnect to probe with ti-sysc driver. Note that this is not needed for omap5 as we can just update mcpdm muxing in omap5-board-common.dtsi in later patches. Cc: devicetree@vger.kernel.org Cc: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-04-10 00:00:53 +08:00
clocks = <&twl6040>;
clock-names = "pdmclk";
};
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