Hello,
I'm having a problem where the GPMC registers are not being configured correctly (or are being overwritten) in "linux-3.14.43".
This was previously working OK in "linux-3.12.9".
With linux-3.12.9:
I'm using the GPMC to creat a peripheral bus to connect to an external QUART and DUART. I'm first configuring the GPMC in u-boot.
And then again in the kernel by adding the required information to the "am335x-bone-common.dtsi" file (See included am335x-bone-
common.dtsi file). Everything works OK, and I'm able to talk to the QUART and DUART. In fact, I can comment out the GPMC timing
information in the am335x-bone-common.dtsi file, and it still works. The kernel just leaves the settings as they were set in u-
boot.
With linux-3.14.43:
Last week I decided to update to Linux version 3.14.43 (from your latest SDK) to try to correct a serial data loss problem. Now
the bus isn't working. When I used the debugger to check the GPMC registers, they were all changed. They were NOT set to the
values they were set to in u-boot. And, they were NOT set to the values specified in the am335x-bone-common.dtsi file.
QUESTION:
In linux-3.14.43, something else in the kernel is setting the GPMC registers. This was not happening in linux-3.12.9. Can you
tell me what is doing this?
Thank you for your time,
Everett
=====================================================================
=====================================================================
/*
* Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com/
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
/ {
/*model = "TI AM335x BeagleBone";
compatible = "ti,am335x-bone", "ti,am33xx";*/
model = "TI AM335x EVM";
compatible = "ti,am335x-evm", "ti,am33xx";
cpus {
cpu@0 {
cpu0-supply = <&dcdc2_reg>;
};
};
memory {
device_type = "memory";
reg = <0x80000000 0x10000000>; /* 256 MB */
};
vmmcsd_fixed: fixedregulator@0 {
compatible = "regulator-fixed";
regulator-name = "vmmcsd_fixed";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
};
};
&am33xx_pinmux {
pinctrl-names = "default";
i2c0_pins: pinmux_i2c0_pins {
pinctrl-single,pins = <
/*0x188 (PIN_INPUT_PULLUP | MUX_MODE0) /* i2c0_sda.i2c0_sda */
0x188 0x28 /* i2c0_sda, INPUT | MODE0 */
/*0x18c (PIN_INPUT_PULLUP | MUX_MODE0) /* i2c0_scl.i2c0_scl */
0x18c 0x28 /* i2c0_scl, INPUT | MODE0 */
>;
};
uart0_pins: pinmux_uart0_pins {
pinctrl-single,pins = <
/*0x170 (PIN_INPUT_PULLUP | MUX_MODE0) /* uart0_rxd.uart0_rxd */
/*0x174 (PIN_OUTPUT_PULLDOWN | MUX_MODE0) /* uart0_txd.uart0_txd */
0x170 0x28 /* uart0_rxd, INPUT | MODE0 */
0x174 0x08 /* uart0_txd, OUTPUT | MODE0 */
>;
};
nandflash_pins_s0: nandflash_pins_s0 {
pinctrl-single,pins = <
/*0x0 (PIN_INPUT_PULLUP | MUX_MODE0) /* gpmc_ad0.gpmc_ad0 */
/*0x4 (PIN_INPUT_PULLUP | MUX_MODE0) /* gpmc_ad1.gpmc_ad1 */
/*0x8 (PIN_INPUT_PULLUP | MUX_MODE0) /* gpmc_ad2.gpmc_ad2 */
/*0xc (PIN_INPUT_PULLUP | MUX_MODE0) /* gpmc_ad3.gpmc_ad3 */
/*0x10 (PIN_INPUT_PULLUP | MUX_MODE0) /* gpmc_ad4.gpmc_ad4 */
/*0x14 (PIN_INPUT_PULLUP | MUX_MODE0) /* gpmc_ad5.gpmc_ad5 */
/*0x18 (PIN_INPUT_PULLUP | MUX_MODE0) /* gpmc_ad6.gpmc_ad6 */
/*0x1c (PIN_INPUT_PULLUP | MUX_MODE0) /* gpmc_ad7.gpmc_ad7 */
/*0x70 (PIN_INPUT_PULLUP | MUX_MODE0) /* gpmc_wait0.gpmc_wait0 */
/*0x74 (PIN_INPUT_PULLUP | MUX_MODE7) /* gpmc_wpn.gpio0_30 */
/*0x7c (PIN_OUTPUT | MUX_MODE0) /* gpmc_csn0.gpmc_csn0 */
/*0x90 (PIN_OUTPUT | MUX_MODE0) /* gpmc_advn_ale.gpmc_advn_ale */
/*0x94 (PIN_OUTPUT | MUX_MODE0) /* gpmc_oen_ren.gpmc_oen_ren */
/*0x98 (PIN_OUTPUT | MUX_MODE0) /* gpmc_wen.gpmc_wen */
/*0x9c (PIN_OUTPUT | MUX_MODE0) /* gpmc_be0n_cle.gpmc_be0n_cle */
0x000 0x20 /* gpmc_ad0, INPUT_PULLDOWN | MODE0 */
0x004 0x20 /* gpmc_ad1, INPUT_PULLDOWN | MODE0 */
0x008 0x20 /* gpmc_ad2, INPUT_PULLDOWN | MODE0 */
0x00c 0x20 /* gpmc_ad3, INPUT_PULLDOWN | MODE0 */
0x010 0x20 /* gpmc_ad4, INPUT_PULLDOWN | MODE0 */
0x014 0x20 /* gpmc_ad5, INPUT_PULLDOWN | MODE0 */
0x018 0x20 /* gpmc_ad6, INPUT_PULLDOWN | MODE0 */
0x01c 0x20 /* gpmc_ad7, INPUT_PULLDOWN | MODE0 */
/*......................................................................*/
/* ISSUE: Ev Sykes - (ARM BOARD REV B) - Mods for 16-bit NAND. */
0x020 0x20 /* gpmc_ad8, INPUT_PULLDOWN | MODE0 */
0x024 0x20 /* gpmc_ad9, INPUT_PULLDOWN | MODE0 */
0x028 0x20 /* gpmc_ad10, INPUT_PULLDOWN | MODE0 */
0x02c 0x20 /* gpmc_ad11, INPUT_PULLDOWN | MODE0 */
0x030 0x20 /* gpmc_ad12, INPUT_PULLDOWN | MODE0 */
0x034 0x20 /* gpmc_ad13, INPUT_PULLDOWN | MODE0 */
0x038 0x20 /* gpmc_ad14, INPUT_PULLDOWN | MODE0 */
0x03c 0x20 /* gpmc_ad15, INPUT_PULLDOWN | MODE0 */
/*......................................................................*/
0x070 0x30 /* gpmc_wait0, INPUT_PULLUP | MODE0 */
0x074 0x10 /* gpmc_wpn, OUTPUT_PULLUP | MODE0 */
0x07c 0x10 /* gpmc_csn0, OUTPUT_PULLUP | MODE0 */
0x090 0x10 /* gpmc_advn_ale, OUTPUT_PULLUP | MODE0 */
0x094 0x10 /* gpmc_oen_ren, OUTPUT_PULLUP | MODE0 */
0x098 0x10 /* gpmc_wen, OUTPUT_PULLUP | MODE0 */
0x09c 0x10 /* gpmc_ben0_cle.gpmc_be0n_cle, OUTPUT_PULLUP | MODE0 */
>;
};
serial_pins_s1: serial_pins_s1 {
pinctrl-single,pins = <
0x080 0x10 /* gpmc_csn1, OUTPUT_PULLUP | MODE0 */
0x098 0x10 /* gpmc_wen, OUTPUT_PULLUP | MODE0 */
0x090 0x10 /* gpmc_advn_ale, OUTPUT_PULLUP | MODE0 */
0x094 0x10 /* gpmc_oen_ren, OUTPUT_PULLUP | MODE0 */
0x0a0 0x09 /* lcd_data0.gpmc_a0_mux1, OUTPUT | MODE1 */
0x0a4 0x09 /* lcd_data1.gpmc_a1_mux1, OUTPUT | MODE1 */
0x0a8 0x09 /* lcd_data2.gpmc_a2_mux1, OUTPUT | MODE1 */
0x0ac 0x09 /* lcd_data3.gpmc_a3_mux1, OUTPUT | MODE1 */
0x0b0 0x09 /* lcd_data4.gpmc_a4_mux1, OUTPUT | MODE1 */
0x0b4 0x09 /* lcd_data5.gpmc_a5_mux1, OUTPUT | MODE1 */
0x0b8 0x09 /* lcd_data6.gpmc_a6_mux1, OUTPUT | MODE1 */
0x0bc 0x09 /* lcd_data7.gpmc_a7_mux1, OUTPUT | MODE1 */
0x0c0 0x09 /* lcd_data8.gpmc_a12, OUTPUT | MODE1 */
0x0c4 0x09 /* lcd_data9.gpmc_a13, OUTPUT | MODE1 */
0x0c8 0x09 /* lcd_data10.gpmc_a14, OUTPUT | MODE1 */
0x0cc 0x09 /* lcd_data11.gpmc_a15, OUTPUT | MODE1 */
0x0d0 0x09 /* lcd_data12.gpmc_a16_mux1, OUTPUT | MODE1 */
0x0d4 0x09 /* lcd_data13.gpmc_a17_mux1, OUTPUT | MODE1 */
0x0d8 0x09 /* lcd_data14.gpmc_a18_mux1, OUTPUT | MODE1 */
0x0dc 0x09 /* lcd_data15.gpmc_a19_mux1, OUTPUT | MODE1 */
0x0e0 0x09 /* lcd_vsync.gpmc_a8_mux1, OUTPUT | MODE1 */
0x0e4 0x09 /* lcd_hsync.gpmc_a9_mux1, OUTPUT | MODE1 */
0x0e8 0x09 /* lcd_pclk.gpmc_a10_mux1, OUTPUT | MODE1 */
0x0ec 0x09 /* lcd_ac_bias_en.gpmc_a11_mux1, OUTPUT | MODE1 */
0x000 0x20 /* gpmc_ad0, INPUT_PULLDOWN | MODE0 */
0x004 0x20 /* gpmc_ad1, INPUT_PULLDOWN | MODE0 */
0x008 0x20 /* gpmc_ad2, INPUT_PULLDOWN | MODE0 */
0x00c 0x20 /* gpmc_ad3, INPUT_PULLDOWN | MODE0 */
0x010 0x20 /* gpmc_ad4, INPUT_PULLDOWN | MODE0 */
0x014 0x20 /* gpmc_ad5, INPUT_PULLDOWN | MODE0 */
0x018 0x20 /* gpmc_ad6, INPUT_PULLDOWN | MODE0 */
0x01c 0x20 /* gpmc_ad7, INPUT_PULLDOWN | MODE0 */
>;
};
serial_pins_s3: serial_pins_s3 {
pinctrl-single,pins = <
0x088 0x10 /* gpmc_csn3, OUTPUT_PULLUP | MODE0 */
0x098 0x10 /* gpmc_wen, OUTPUT_PULLUP | MODE0 */
0x090 0x10 /* gpmc_advn_ale, OUTPUT_PULLUP | MODE0 */
0x094 0x10 /* gpmc_oen_ren, OUTPUT_PULLUP | MODE0 */
0x0a0 0x09 /* lcd_data0.gpmc_a0_mux1, OUTPUT | MODE1 */
0x0a4 0x09 /* lcd_data1.gpmc_a1_mux1, OUTPUT | MODE1 */
0x0a8 0x09 /* lcd_data2.gpmc_a2_mux1, OUTPUT | MODE1 */
0x0ac 0x09 /* lcd_data3.gpmc_a3_mux1, OUTPUT | MODE1 */
0x0b0 0x09 /* lcd_data4.gpmc_a4_mux1, OUTPUT | MODE1 */
0x0b4 0x09 /* lcd_data5.gpmc_a5_mux1, OUTPUT | MODE1 */
0x0b8 0x09 /* lcd_data6.gpmc_a6_mux1, OUTPUT | MODE1 */
0x0bc 0x09 /* lcd_data7.gpmc_a7_mux1, OUTPUT | MODE1 */
0x0c0 0x09 /* lcd_data8.gpmc_a12, OUTPUT | MODE1 */
0x0c4 0x09 /* lcd_data9.gpmc_a13, OUTPUT | MODE1 */
0x0c8 0x09 /* lcd_data10.gpmc_a14, OUTPUT | MODE1 */
0x0cc 0x09 /* lcd_data11.gpmc_a15, OUTPUT | MODE1 */
0x0d0 0x09 /* lcd_data12.gpmc_a16_mux1, OUTPUT | MODE1 */
0x0d4 0x09 /* lcd_data13.gpmc_a17_mux1, OUTPUT | MODE1 */
0x0d8 0x09 /* lcd_data14.gpmc_a18_mux1, OUTPUT | MODE1 */
0x0dc 0x09 /* lcd_data15.gpmc_a19_mux1, OUTPUT | MODE1 */
0x0e0 0x09 /* lcd_vsync.gpmc_a8_mux1, OUTPUT | MODE1 */
0x0e4 0x09 /* lcd_hsync.gpmc_a9_mux1, OUTPUT | MODE1 */
0x0e8 0x09 /* lcd_pclk.gpmc_a10_mux1, OUTPUT | MODE1 */
0x0ec 0x09 /* lcd_ac_bias_en.gpmc_a11_mux1, OUTPUT | MODE1 */
0x000 0x20 /* gpmc_ad0, INPUT_PULLDOWN | MODE0 */
0x004 0x20 /* gpmc_ad1, INPUT_PULLDOWN | MODE0 */
0x008 0x20 /* gpmc_ad2, INPUT_PULLDOWN | MODE0 */
0x00c 0x20 /* gpmc_ad3, INPUT_PULLDOWN | MODE0 */
0x010 0x20 /* gpmc_ad4, INPUT_PULLDOWN | MODE0 */
0x014 0x20 /* gpmc_ad5, INPUT_PULLDOWN | MODE0 */
0x018 0x20 /* gpmc_ad6, INPUT_PULLDOWN | MODE0 */
0x01c 0x20 /* gpmc_ad7, INPUT_PULLDOWN | MODE0 */
>;
};
cpsw_default: cpsw_default {
pinctrl-single,pins = <
/* Slave 1 */
/*0x110 (PIN_INPUT_PULLUP | MUX_MODE0) /* mii1_rxerr.mii1_rxerr */
0x110 0x37 /* mii1_rx_er.gpio3[2], INPUT_PULLUP | MODE7 */
/*0x114 (PIN_OUTPUT_PULLDOWN | MUX_MODE0) /* mii1_txen.mii1_txen */
0x114 0x02 /* mii1_tx_en.rgmii1_tctl, OUTPUT_PULLDOWN | MODE2 */
/*0x118 (PIN_INPUT_PULLUP | MUX_MODE0) /* mii1_rxdv.mii1_rxdv */
0x118 0x22 /* mii1_rx_dv.rgmii1_rctl, INPUT_PULLDOWN | MODE2 */
/*0x11c (PIN_OUTPUT_PULLDOWN | MUX_MODE0) /* mii1_txd3.mii1_txd3 */
0x11c 0x02 /* mii1_txd3.rgmii1_td3, OUTPUT_PULLDOWN | MODE2 */
/*0x120 (PIN_OUTPUT_PULLDOWN | MUX_MODE0) /* mii1_txd2.mii1_txd2 */
0x124 0x02 /* mii1_txd1.rgmii1_td1, OUTPUT_PULLDOWN | MODE2 */
/*0x124 (PIN_OUTPUT_PULLDOWN | MUX_MODE0) /* mii1_txd1.mii1_txd1 */
0x124 0x02 /* mii1_txd1.rgmii1_td1, OUTPUT_PULLDOWN | MODE2 */
/*0x128 (PIN_OUTPUT_PULLDOWN | MUX_MODE0) /* mii1_txd0.mii1_txd0 */
0x128 0x02 /* mii1_txd0.rgmii1_td0, OUTPUT_PULLDOWN | MODE2 */
/*0x12c (PIN_INPUT_PULLUP | MUX_MODE0) /* mii1_txclk.mii1_txclk */
0x12c 0x02 /* mii1_tx_clk.rgmii1_tclk, OUTPUT_PULLDOWN | MODE2 */
/*0x130 (PIN_INPUT_PULLUP | MUX_MODE0) /* mii1_rxclk.mii1_rxclk */
0x130 0x22 /* mii1_rx_clk.rgmii1_rclk, INPUT_PULLDOWN | MODE2 */
/*0x134 (PIN_INPUT_PULLUP | MUX_MODE0) /* mii1_rxd3.mii1_rxd3 */
0x134 0x22 /* mii1_rxd3.rgmii1_rd3, INPUT_PULLDOWN | MODE2 */
/*0x138 (PIN_INPUT_PULLUP | MUX_MODE0) /* mii1_rxd2.mii1_rxd2 */
0x138 0x22 /* mii1_rxd2.rgmii1_rd2, INPUT_PULLDOWN | MODE2 */
/*0x13c (PIN_INPUT_PULLUP | MUX_MODE0) /* mii1_rxd1.mii1_rxd1 */
0x13c 0x22 /* mii1_rxd1.rgmii1_rd1, INPUT_PULLDOWN | MODE2 */
/*0x140 (PIN_INPUT_PULLUP | MUX_MODE0) /* mii1_rxd0.mii1_rxd0 */
0x140 0x22 /* mii1_rxd0.rgmii1_rd0, INPUT_PULLDOWN | MODE2 */
>;
};
cpsw_sleep: cpsw_sleep {
pinctrl-single,pins = <
/* Slave 1 reset value */
0x110 (PIN_INPUT_PULLDOWN | MUX_MODE7)
0x114 (PIN_INPUT_PULLDOWN | MUX_MODE7)
0x118 (PIN_INPUT_PULLDOWN | MUX_MODE7)
0x11c (PIN_INPUT_PULLDOWN | MUX_MODE7)
0x120 (PIN_INPUT_PULLDOWN | MUX_MODE7)
0x124 (PIN_INPUT_PULLDOWN | MUX_MODE7)
0x128 (PIN_INPUT_PULLDOWN | MUX_MODE7)
0x12c (PIN_INPUT_PULLDOWN | MUX_MODE7)
0x130 (PIN_INPUT_PULLDOWN | MUX_MODE7)
0x134 (PIN_INPUT_PULLDOWN | MUX_MODE7)
0x138 (PIN_INPUT_PULLDOWN | MUX_MODE7)
0x13c (PIN_INPUT_PULLDOWN | MUX_MODE7)
0x140 (PIN_INPUT_PULLDOWN | MUX_MODE7)
>;
};
davinci_mdio_default: davinci_mdio_default {
pinctrl-single,pins = <
/* MDIO */
/*0x148 (PIN_INPUT_PULLUP | SLEWCTRL_FAST | MUX_MODE0) /* mdio_data.mdio_data */
0x148 0x30 /* mdio.mdio_data, INPUT_PULLUP | MODE0 */
/*0x14c (PIN_OUTPUT_PULLUP | MUX_MODE0) /* mdio_clk.mdio_clk */
0x14c 0x10 /* mdc.mdio_clk, OUTPUT_PULLUP | MODE0 */
>;
};
davinci_mdio_sleep: davinci_mdio_sleep {
pinctrl-single,pins = <
/* MDIO reset value */
0x148 (PIN_INPUT_PULLDOWN | MUX_MODE7)
0x14c (PIN_INPUT_PULLDOWN | MUX_MODE7)
>;
};
mmc1_pins: pinmux_mmc1_pins {
pinctrl-single,pins = <
/*0x160 (PIN_INPUT | MUX_MODE7) /* GPIO0_6 */
0x190 0x24 /* mcasp0_aclkx.mmc0_sdcd_mux1, INPUT_PULLDOWN | MODE4 */
>;
};
};
&uart0 {
pinctrl-names = "default";
pinctrl-0 = <&uart0_pins>;
status = "okay";
};
&usb {
status = "okay";
control@44e10620 {
status = "okay";
};
usb-phy@47401300 {
status = "okay";
};
usb-phy@47401b00 {
status = "okay";
};
usb@47401000 {
status = "okay";
};
usb@47401800 {
status = "okay";
dr_mode = "host";
};
dma-controller@47402000 {
status = "okay";
};
};
&i2c0 {
pinctrl-names = "default";
pinctrl-0 = <&i2c0_pins>;
status = "okay";
clock-frequency = <400000>;
tps: tps@24 {
reg = <0x24>;
};
hwmon@48 {
compatible = "national,lm75";
reg = <0x48>;
};
baseboard_eeprom: baseboard_eeprom@50 {
compatible = "atmel,24c08";
reg = <0x50>;
pagesize = <16>;
};
rtc@68 {
compatible = "dallas,ds1339";
reg = <0x68>;
};
};
/include/ "tps65217.dtsi"
&elm {
status = "okay";
};
&gpmc {
status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&nandflash_pins_s0>;
pinctrl-1 = <&serial_pins_s1>;
pinctrl-3 = <&serial_pins_s3>;
ranges = < 0 0 0x08000000 0x10000000 /* CS0: NAND */
1 0 0x01000000 0x01000000 /* CS1: DUART */
2 0 0x02000000 0x01000000 /* CS2: Unused */
3 0 0x03000000 0x01000000 /* CS3: QUARTs, Latches, etc. */
>;
nand@0,0 {
reg = <0 0 0>; /* CS0, offset 0 */
/*......................................................................*/
/* ISSUE: Ev Sykes - (ARM BOARD REV B) - Mods for 16-bit NAND:
8-bit:
nand-bus-width = <8>;
gpmc,device-width = <1>;
16-bit:
nand-bus-width = <16>;
gpmc,device-width = <2>;
*/
nand-bus-width = <16>;
gpmc,device-width = <2>;
/*......................................................................*/
ti,nand-ecc-opt = "hw";
gpmc,device-nand = "true";
gpmc,sync-clk-ps = <0>;
gpmc,cs-on-ns = <0>;
gpmc,cs-rd-off-ns = <44>;
gpmc,cs-wr-off-ns = <44>;
gpmc,adv-on-ns = <6>;
gpmc,adv-rd-off-ns = <34>;
gpmc,adv-wr-off-ns = <44>;
gpmc,we-on-ns = <0>;
gpmc,we-off-ns = <40>;
gpmc,oe-on-ns = <0>;
gpmc,oe-off-ns = <54>;
gpmc,access-ns = <64>;
gpmc,rd-cycle-ns = <82>;
gpmc,wr-cycle-ns = <82>;
gpmc,wait-on-read = "true";
gpmc,wait-on-write = "true";
gpmc,bus-turnaround-ns = <0>;
gpmc,cycle2cycle-delay-ns = <0>;
gpmc,clk-activation-ns = <0>;
gpmc,wait-monitoring-ns = <0>;
gpmc,wr-access-ns = <40>;
gpmc,wr-data-mux-bus-ns = <0>;
#address-cells = <1>;
#size-cells = <1>;
elm_id = <&elm>;
/* MTD partition table */
partition@0 {
label = "NAND.SPL";
reg = <0x00000000 0x00020000>;
read-only;
};
partition@1 {
label = "NAND.SPL.backup1";
reg = <0x00020000 0x00020000>;
read-only;
};
partition@2 {
label = "NAND.SPL.backup2";
reg = <0x00040000 0x00020000>;
read-only;
};
partition@3 {
label = "NAND.SPL.backup3";
reg = <0x00060000 0x00020000>;
read-only;
};
partition@4 {
label = "NAND.u-boot-spl-os";
reg = <0x00080000 0x00040000>;
read-only;
};
partition@5 {
label = "NAND.u-boot";
reg = <0x000c0000 0x00100000>;
read-only;
};
partition@6 {
label = "NAND.u-boot-env";
reg = <0x001c0000 0x00020000>;
};
partition@7 {
label = "NAND.u-boot-env.backup1";
reg = <0x001e0000 0x00020000>;
};
partition@8 {
label = "NAND.kernel";
reg = <0x00200000 0x03000000>;
};
partition@9 {
label = "NAND.kernel.backup1";
reg = <0x03200000 0x03000000>;
};
partition@10 {
label = "NAND.flash";
reg = <0x06200000 0x00800000>;
};
partition@11 {
label = "NAND.flash2";
reg = <0x06a00000 0x01600000>;
};
};
/*......................................................................*/
/* QUART 1 */
serial@3,0 {
device_type = "serial";
compatible = "ns16550";
uart-device-id = < 8 >;
gpmc,device-width = <1>;
gpmc,cs-wr-off-ns = <160>;
gpmc,cs-rd-off-ns = <160>;
gpmc,cs-on-ns = <60>;
gpmc,adv-wr-off-ns = <130>;
gpmc,adv-rd-off-ns = <140>;
gpmc,adv-on-ns = <40>;
gpmc,we-off-ns = <200>;
gpmc,we-on-ns = <20>;
gpmc,oe-off-ns = <140>;
gpmc,oe-on-ns = <20>;
gpmc,access-ns = <100>;
gpmc,rd-access-ns = <100>;
gpmc,wr-cycle-ns = <210>;
gpmc,rd-cycle-ns = <190>;
gpmc,wr-access-ns = <170>;
gpmc,cycle2cycle-delay-ns = <2>;
gpmc,cycle2cycle-samecsen = <1>;
gpmc,cycle2cycle-diffcsen = <1>;
reg = <3 0x0000 0x0008>;
clock-frequency = <7372800>;
interrupts = <16 8>;
interrupt-parent = <&gpio3>;
status = "okay";
};
/*......................................................................*/
/* DUART (ARM BOARD) */
serial@1,0 {
device_type = "serial";
compatible = "ns16550";
uart-device-id = < 7 >;
gpmc,bank-width = <1>;
gpmc,device-width = <1>;
gpmc,cs-wr-off-ns = <160>;
gpmc,cs-rd-off-ns = <160>;
gpmc,cs-on-ns = <60>;
gpmc,adv-wr-off-ns = <130>;
gpmc,adv-rd-off-ns = <140>;
gpmc,adv-on-ns = <40>;
gpmc,we-off-ns = <200>;
gpmc,we-on-ns = <20>;
gpmc,oe-off-ns = <140>;
gpmc,oe-on-ns = <20>;
gpmc,access-ns = <100>;
gpmc,rd-access-ns = <100>;
gpmc,wr-cycle-ns = <210>;
gpmc,rd-cycle-ns = <190>;
gpmc,wr-access-ns = <170>;
gpmc,cycle2cycle-delay-ns = <2>;
gpmc,cycle2cycle-samecsen = <1>;
gpmc,cycle2cycle-diffcsen = <1>;
reg = <1 0x00c0 0x0008>;
clock-frequency = <14745600>;
interrupts = <17 8>;
interrupt-parent = <&gpio3>;
status = "okay";
};
serial@1,1 {
device_type = "serial";
compatible = "ns16550";
uart-device-id = < 7 >;
gpmc,bank-width = <1>;
gpmc,device-width = <1>;
gpmc,cs-wr-off-ns = <160>;
gpmc,cs-rd-off-ns = <160>;
gpmc,cs-on-ns = <60>;
gpmc,adv-wr-off-ns = <130>;
gpmc,adv-rd-off-ns = <140>;
gpmc,adv-on-ns = <40>;
gpmc,we-off-ns = <200>;
gpmc,we-on-ns = <20>;
gpmc,oe-off-ns = <140>;
gpmc,oe-on-ns = <20>;
gpmc,access-ns = <100>;
gpmc,rd-access-ns = <100>;
gpmc,wr-cycle-ns = <210>;
gpmc,rd-cycle-ns = <190>;
gpmc,wr-access-ns = <170>;
gpmc,cycle2cycle-delay-ns = <2>;
gpmc,cycle2cycle-samecsen = <1>;
gpmc,cycle2cycle-diffcsen = <1>;
reg = <1 0x00c8 0x0008>;
clock-frequency = <14745600>;
interrupts = <17 8>;
interrupt-parent = <&gpio3>;
status = "okay";
};
/*......................................................................*/
};
&tps {
regulators {
dcdc1_reg: regulator@0 {
regulator-always-on;
};
dcdc2_reg: regulator@1 {
/* VDD_MPU voltage limits 0.95V - 1.26V with +/-4% tolerance */
regulator-name = "vdd_mpu";
regulator-min-microvolt = <925000>;
regulator-max-microvolt = <1325000>;
regulator-boot-on;
regulator-always-on;
};
dcdc3_reg: regulator@2 {
/* VDD_CORE voltage limits 0.95V - 1.1V with +/-4% tolerance */
regulator-name = "vdd_core";
regulator-min-microvolt = <925000>;
regulator-max-microvolt = <1150000>;
regulator-boot-on;
regulator-always-on;
};
ldo1_reg: regulator@3 {
regulator-always-on;
};
ldo2_reg: regulator@4 {
regulator-always-on;
};
ldo3_reg: regulator@5 {
regulator-always-on;
};
ldo4_reg: regulator@6 {
regulator-always-on;
};
};
};
/*......................................................................*/
/* ISSUE: Ev Sykes - (ARM BOARD REV B) - Mods for PHY addresses:
Rev A:
phy_id = <&davinci_mdio>, <0>;
phy_id = <&davinci_mdio>, <1>;
Rev B:
phy_id = <&davinci_mdio>, <3>;
phy_id = <&davinci_mdio>, <7>;
*/
&cpsw_emac0 {
phy_id = <&davinci_mdio>, <3>;
phy-mode = "rgmii";
};
&cpsw_emac1 {
phy_id = <&davinci_mdio>, <7>;
phy-mode = "rgmii";
};
/*......................................................................*/
&mac {
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>;
};
&mmc1 {
status = "okay";
bus-width = <0x4>;
pinctrl-names = "default";
pinctrl-0 = <&mmc1_pins>;
cd-gpios = <&gpio3 14 GPIO_ACTIVE_HIGH>;
cd-inverted;
};
