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ARM: dts: dra72-evm: Remove pinmux configurations for erratum i869
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Pinmuxing for DRA7x/AM57x family of processors need to be done in IO
isolation as part of initial bootloader executed from SRAM. This is
done as part of iodelay configuration sequence and is required due
to the limitations introduced by erratum ID: i869[1] (IO Glitches
can occur when changing IO settings) and elaborated in the Technical
Reference Manual[2] 18.4.6.1.7 Isolation Requirements.

Only peripheral that is permitted for dynamic pin mux configuration
is MMC and DCAN. MMC is permitted to change to accommodate the
requirements for varied speeds (which require IO-delay support in
kernel as well). DCAN is a result of i893[1] (DCAN initialization
sequence). With the exception of DCAN and MMC, all other pin mux
configurations are removed from the dts.

[1] http://www.ti.com/lit/er/sprz436a/sprz436a.pdf
[2] http://www.ti.com/lit/ug/spruhz7c/spruhz7c.pdf

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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Lokesh Vutla authored and Tony Lindgren committed Nov 9, 2016
1 parent 5ce93ff commit 46cfc89
Showing 1 changed file with 0 additions and 192 deletions.
192 changes: 0 additions & 192 deletions arch/arm/boot/dts/dra72-evm-common.dtsi
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Original file line number Diff line number Diff line change
Expand Up @@ -69,9 +69,6 @@
tpd12s015: encoder {
compatible = "ti,tpd12s015";

pinctrl-names = "default";
pinctrl-0 = <&tpd12s015_pins>;

gpios = <&pcf_hdmi 4 GPIO_ACTIVE_HIGH>, /* P4, CT CP HPD */
<&pcf_hdmi 5 GPIO_ACTIVE_HIGH>, /* P5, LS OE */
<&gpio7 12 GPIO_ACTIVE_HIGH>; /* gpio7_12/sp1_cs2, HPD */
Expand Down Expand Up @@ -134,72 +131,6 @@
};

&dra7_pmx_core {
i2c1_pins: pinmux_i2c1_pins {
pinctrl-single,pins = <
DRA7XX_CORE_IOPAD(0x3800, PIN_INPUT | MUX_MODE0) /* i2c1_sda.i2c1_sda */
DRA7XX_CORE_IOPAD(0x3804, PIN_INPUT | MUX_MODE0) /* i2c1_scl.i2c1_scl */
>;
};

i2c5_pins: pinmux_i2c5_pins {
pinctrl-single,pins = <
DRA7XX_CORE_IOPAD(0x36b4, PIN_INPUT | MUX_MODE10) /* mcasp1_axr0.i2c5_sda */
DRA7XX_CORE_IOPAD(0x36b8, PIN_INPUT | MUX_MODE10) /* mcasp1_axr1.i2c5_scl */
>;
};

i2c5_pins: pinmux_i2c5_pins {
pinctrl-single,pins = <
DRA7XX_CORE_IOPAD(0x36b4, PIN_INPUT | MUX_MODE10) /* mcasp1_axr0.i2c5_sda */
DRA7XX_CORE_IOPAD(0x36b8, PIN_INPUT | MUX_MODE10) /* mcasp1_axr1.i2c5_scl */
>;
};

nand_default: nand_default {
pinctrl-single,pins = <
DRA7XX_CORE_IOPAD(0x3400, PIN_INPUT | MUX_MODE0) /* gpmc_ad0 */
DRA7XX_CORE_IOPAD(0x3404, PIN_INPUT | MUX_MODE0) /* gpmc_ad1 */
DRA7XX_CORE_IOPAD(0x3408, PIN_INPUT | MUX_MODE0) /* gpmc_ad2 */
DRA7XX_CORE_IOPAD(0x340c, PIN_INPUT | MUX_MODE0) /* gpmc_ad3 */
DRA7XX_CORE_IOPAD(0x3410, PIN_INPUT | MUX_MODE0) /* gpmc_ad4 */
DRA7XX_CORE_IOPAD(0x3414, PIN_INPUT | MUX_MODE0) /* gpmc_ad5 */
DRA7XX_CORE_IOPAD(0x3418, PIN_INPUT | MUX_MODE0) /* gpmc_ad6 */
DRA7XX_CORE_IOPAD(0x341c, PIN_INPUT | MUX_MODE0) /* gpmc_ad7 */
DRA7XX_CORE_IOPAD(0x3420, PIN_INPUT | MUX_MODE0) /* gpmc_ad8 */
DRA7XX_CORE_IOPAD(0x3424, PIN_INPUT | MUX_MODE0) /* gpmc_ad9 */
DRA7XX_CORE_IOPAD(0x3428, PIN_INPUT | MUX_MODE0) /* gpmc_ad10 */
DRA7XX_CORE_IOPAD(0x342c, PIN_INPUT | MUX_MODE0) /* gpmc_ad11 */
DRA7XX_CORE_IOPAD(0x3430, PIN_INPUT | MUX_MODE0) /* gpmc_ad12 */
DRA7XX_CORE_IOPAD(0x3434, PIN_INPUT | MUX_MODE0) /* gpmc_ad13 */
DRA7XX_CORE_IOPAD(0x3438, PIN_INPUT | MUX_MODE0) /* gpmc_ad14 */
DRA7XX_CORE_IOPAD(0x343c, PIN_INPUT | MUX_MODE0) /* gpmc_ad15 */
DRA7XX_CORE_IOPAD(0x34b4, PIN_OUTPUT | MUX_MODE0) /* gpmc_cs0 */
DRA7XX_CORE_IOPAD(0x34c4, PIN_OUTPUT | MUX_MODE0) /* gpmc_advn_ale */
DRA7XX_CORE_IOPAD(0x34cc, PIN_OUTPUT | MUX_MODE0) /* gpmc_wen */
DRA7XX_CORE_IOPAD(0x34c8, PIN_OUTPUT | MUX_MODE0) /* gpmc_oen_ren */
DRA7XX_CORE_IOPAD(0x34d0, PIN_OUTPUT | MUX_MODE0) /* gpmc_ben0 */
DRA7XX_CORE_IOPAD(0x34d8, PIN_INPUT | MUX_MODE0) /* gpmc_wait0 */
>;
};

usb1_pins: pinmux_usb1_pins {
pinctrl-single,pins = <
DRA7XX_CORE_IOPAD(0x3680, PIN_INPUT_SLEW | MUX_MODE0) /* usb1_drvvbus */
>;
};

usb2_pins: pinmux_usb2_pins {
pinctrl-single,pins = <
DRA7XX_CORE_IOPAD(0x3684, PIN_INPUT_SLEW | MUX_MODE0) /* usb2_drvvbus */
>;
};

tps65917_pins_default: tps65917_pins_default {
pinctrl-single,pins = <
DRA7XX_CORE_IOPAD(0x3824, PIN_INPUT_PULLUP | MUX_MODE1) /* wakeup3.sys_nirq1 */
>;
};

mmc1_pins_default: mmc1_pins_default {
pinctrl-single,pins = <
DRA7XX_CORE_IOPAD(0x376c, PIN_INPUT | MUX_MODE14) /* mmc1sdcd.gpio219 */
Expand Down Expand Up @@ -240,59 +171,16 @@
DRA7XX_CORE_IOPAD(0x3818, MUX_MODE15 | PULL_UP) /* wakeup0.off */
>;
};

hdmi_pins: pinmux_hdmi_pins {
pinctrl-single,pins = <
DRA7XX_CORE_IOPAD(0x3808, PIN_INPUT | MUX_MODE1) /* i2c2_sda.hdmi1_ddc_scl */
DRA7XX_CORE_IOPAD(0x380c, PIN_INPUT | MUX_MODE1) /* i2c2_scl.hdmi1_ddc_sda */
>;
};

tpd12s015_pins: pinmux_tpd12s015_pins {
pinctrl-single,pins = <
DRA7XX_CORE_IOPAD(0x37b8, PIN_INPUT_PULLDOWN | MUX_MODE14) /* gpio7_12 HPD */
>;
};

atl_pins: pinmux_atl_pins {
pinctrl-single,pins = <
DRA7XX_CORE_IOPAD(0x3698, PIN_OUTPUT | MUX_MODE5) /* xref_clk1.atl_clk1 */
DRA7XX_CORE_IOPAD(0x369c, PIN_OUTPUT | MUX_MODE5) /* xref_clk2.atl_clk2 */
>;
};

mcasp3_pins: pinmux_mcasp3_pins {
pinctrl-single,pins = <
DRA7XX_CORE_IOPAD(0x3724, PIN_OUTPUT_PULLDOWN | MUX_MODE0) /* mcasp3_aclkx */
DRA7XX_CORE_IOPAD(0x3728, PIN_OUTPUT_PULLDOWN | MUX_MODE0) /* mcasp3_fsx */
DRA7XX_CORE_IOPAD(0x372c, PIN_OUTPUT_PULLDOWN | MUX_MODE0) /* mcasp3_axr0 */
DRA7XX_CORE_IOPAD(0x3730, PIN_INPUT_PULLDOWN | MUX_MODE0) /* mcasp3_axr1 */
>;
};

mcasp3_sleep_pins: pinmux_mcasp3_sleep_pins {
pinctrl-single,pins = <
DRA7XX_CORE_IOPAD(0x3724, PIN_INPUT_PULLDOWN | MUX_MODE15)
DRA7XX_CORE_IOPAD(0x3728, PIN_INPUT_PULLDOWN | MUX_MODE15)
DRA7XX_CORE_IOPAD(0x372c, PIN_INPUT_PULLDOWN | MUX_MODE15)
DRA7XX_CORE_IOPAD(0x3730, PIN_INPUT_PULLDOWN | MUX_MODE15)
>;
};
};

&i2c1 {
status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&i2c1_pins>;
clock-frequency = <400000>;

tps65917: tps65917@58 {
compatible = "ti,tps65917";
reg = <0x58>;

pinctrl-names = "default";
pinctrl-0 = <&tps65917_pins_default>;

interrupts = <GIC_SPI 2 IRQ_TYPE_NONE>; /* IRQ_SYS_1N */
interrupt-controller;
#interrupt-cells = <2>;
Expand Down Expand Up @@ -423,8 +311,6 @@

&i2c5 {
status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&i2c5_pins>;
clock-frequency = <400000>;

pcf_hdmi: pcf8575@26 {
Expand Down Expand Up @@ -462,8 +348,6 @@

&gpmc {
status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&nand_default>;
ranges = <0 0 0x08000000 0x01000000>; /* minimum GPMC partition = 16MB */
nand@0,0 {
/* To use NAND, DIP switch SW5 must be set like so:
Expand Down Expand Up @@ -566,14 +450,10 @@

&usb1 {
dr_mode = "peripheral";
pinctrl-names = "default";
pinctrl-0 = <&usb1_pins>;
};

&usb2 {
dr_mode = "host";
pinctrl-names = "default";
pinctrl-0 = <&usb2_pins>;
};

&mmc1 {
Expand Down Expand Up @@ -603,71 +483,8 @@
max-frequency = <192000000>;
};

&dra7_pmx_core {
cpsw_default: cpsw_default {
pinctrl-single,pins = <
/* Slave 2 */
DRA7XX_CORE_IOPAD(0x3598, PIN_OUTPUT | MUX_MODE3) /* vin2a_d12.rgmii1_txc */
DRA7XX_CORE_IOPAD(0x359c, PIN_OUTPUT | MUX_MODE3) /* vin2a_d13.rgmii1_tctl */
DRA7XX_CORE_IOPAD(0x35a0, PIN_OUTPUT | MUX_MODE3) /* vin2a_d14.rgmii1_td3 */
DRA7XX_CORE_IOPAD(0x35a4, PIN_OUTPUT | MUX_MODE3) /* vin2a_d15.rgmii1_td2 */
DRA7XX_CORE_IOPAD(0x35a8, PIN_OUTPUT | MUX_MODE3) /* vin2a_d16.rgmii1_td1 */
DRA7XX_CORE_IOPAD(0x35ac, PIN_OUTPUT | MUX_MODE3) /* vin2a_d17.rgmii1_td0 */
DRA7XX_CORE_IOPAD(0x35b0, PIN_INPUT | MUX_MODE3) /* vin2a_d18.rgmii1_rclk */
DRA7XX_CORE_IOPAD(0x35b4, PIN_INPUT | MUX_MODE3) /* vin2a_d19.rgmii1_rctl */
DRA7XX_CORE_IOPAD(0x35b8, PIN_INPUT | MUX_MODE3) /* vin2a_d20.rgmii1_rd3 */
DRA7XX_CORE_IOPAD(0x35bc, PIN_INPUT | MUX_MODE3) /* vin2a_d21.rgmii1_rd2 */
DRA7XX_CORE_IOPAD(0x35c0, PIN_INPUT | MUX_MODE3) /* vin2a_d22.rgmii1_rd1 */
DRA7XX_CORE_IOPAD(0x35c4, PIN_INPUT | MUX_MODE3) /* vin2a_d23.rgmii1_rd0 */
>;

};

cpsw_sleep: cpsw_sleep {
pinctrl-single,pins = <
/* Slave 2 */
DRA7XX_CORE_IOPAD(0x3598, MUX_MODE15)
DRA7XX_CORE_IOPAD(0x359c, MUX_MODE15)
DRA7XX_CORE_IOPAD(0x35a0, MUX_MODE15)
DRA7XX_CORE_IOPAD(0x35a4, MUX_MODE15)
DRA7XX_CORE_IOPAD(0x35a8, MUX_MODE15)
DRA7XX_CORE_IOPAD(0x35ac, MUX_MODE15)
DRA7XX_CORE_IOPAD(0x35b0, MUX_MODE15)
DRA7XX_CORE_IOPAD(0x35b4, MUX_MODE15)
DRA7XX_CORE_IOPAD(0x35b8, MUX_MODE15)
DRA7XX_CORE_IOPAD(0x35bc, MUX_MODE15)
DRA7XX_CORE_IOPAD(0x35c0, MUX_MODE15)
DRA7XX_CORE_IOPAD(0x35c4, MUX_MODE15)
>;
};

davinci_mdio_default: davinci_mdio_default {
pinctrl-single,pins = <
/* MDIO */
DRA7XX_CORE_IOPAD(0x363c, PIN_OUTPUT_PULLUP | MUX_MODE0) /* mdio_d.mdio_d */
DRA7XX_CORE_IOPAD(0x3640, PIN_INPUT_PULLUP | MUX_MODE0) /* mdio_clk.mdio_clk */
>;
};

davinci_mdio_sleep: davinci_mdio_sleep {
pinctrl-single,pins = <
DRA7XX_CORE_IOPAD(0x363c, MUX_MODE15)
DRA7XX_CORE_IOPAD(0x3640, MUX_MODE15)
>;
};
};

&mac {
status = "okay";
pinctrl-names = "default", "sleep";
pinctrl-0 = <&cpsw_default>;
pinctrl-1 = <&cpsw_sleep>;
};

&davinci_mdio {
pinctrl-names = "default", "sleep";
pinctrl-0 = <&davinci_mdio_default>;
pinctrl-1 = <&davinci_mdio_sleep>;
};

&dcan1 {
Expand Down Expand Up @@ -748,9 +565,6 @@
&hdmi {
status = "ok";

pinctrl-names = "default";
pinctrl-0 = <&hdmi_pins>;

port {
hdmi_out: endpoint {
remote-endpoint = <&tpd12s015_in>;
Expand All @@ -759,9 +573,6 @@
};

&atl {
pinctrl-names = "default";
pinctrl-0 = <&atl_pins>;

assigned-clocks = <&abe_dpll_sys_clk_mux>,
<&atl_gfclk_mux>,
<&dpll_abe_ck>,
Expand All @@ -780,9 +591,6 @@

&mcasp3 {
#sound-dai-cells = <0>;
pinctrl-names = "default", "sleep";
pinctrl-0 = <&mcasp3_pins>;
pinctrl-1 = <&mcasp3_sleep_pins>;

assigned-clocks = <&mcasp3_ahclkx_mux>;
assigned-clock-parents = <&atl_clkin2_ck>;
Expand Down

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