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u-boot-brain/arch/x86/dts/minnowmax.dts
Bin Meng f7a01e4848 x86: baytrail: Configure card detect pin of the SD controller 
As of today, the latest version FSP (gold4) for BayTrail misses the
PAD configuration of the SD controller's Card Detect signal. The
default PAD value for the CD pin sets the pin to work in GPIO mode,
which causes card detect status cannot be reflected by the Present
State register in the SD controller (bit 16 & bit 18 are always zero).

Add a configuration for this pin in the pinctrl node.

Note I've checked the PAD configuration for all the pins in all the
3 controllers (eMMC/SDIO/SD). Only this SDMMC3_CD_B pin does not get
initialized to correct mode by FSP. With fsp,emmc-boot-mode set to
2 (eMMC 4.1), eMMC pins are initialized to func 1, but if we set
fsp,emmc-boot-mode to 1 (auto), those pins are initialized to func 3
which is correct according to datasheet.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Stefan Roese <sr@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-06-12 12:19:35 +08:00

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/*
* Copyright (C) 2014, Bin Meng <bmeng.cn@gmail.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
/dts-v1/;
#include <dt-bindings/gpio/x86-gpio.h>
#include <dt-bindings/interrupt-router/intel-irq.h>
/include/ "skeleton.dtsi"
/include/ "serial.dtsi"
/include/ "rtc.dtsi"
/include/ "tsc_timer.dtsi"
/ {
model = "Intel Minnowboard Max";
compatible = "intel,minnowmax", "intel,baytrail";
aliases {
serial0 = &serial;
spi0 = &spi;
};
config {
silent_console = <0>;
};
pch_pinctrl {
compatible = "intel,x86-pinctrl";
reg = <0 0>;
/* GPIO E0 */
soc_gpio_s5_0@0 {
gpio-offset = <0x80 0>;
pad-offset = <0x1d0>;
mode-gpio;
output-value = <0>;
direction = <PIN_OUTPUT>;
};
/* GPIO E1 */
soc_gpio_s5_1@0 {
gpio-offset = <0x80 1>;
pad-offset = <0x210>;
mode-gpio;
output-value = <0>;
direction = <PIN_OUTPUT>;
};
/* GPIO E2 */
soc_gpio_s5_2@0 {
gpio-offset = <0x80 2>;
pad-offset = <0x1e0>;
mode-gpio;
output-value = <0>;
direction = <PIN_OUTPUT>;
};
pin_usb_host_en0@0 {
gpio-offset = <0x80 8>;
pad-offset = <0x260>;
mode-gpio;
output-value = <1>;
direction = <PIN_OUTPUT>;
};
pin_usb_host_en1@0 {
gpio-offset = <0x80 9>;
pad-offset = <0x250>;
mode-gpio;
output-value = <1>;
direction = <PIN_OUTPUT>;
};
/*
* As of today, the latest version FSP (gold4) for BayTrail
* misses the PAD configuration of the SD controller's Card
* Detect signal. The default PAD value for the CD pin sets
* the pin to work in GPIO mode, which causes card detect
* status cannot be reflected by the Present State register
* in the SD controller (bit 16 & bit 18 are always zero).
*
* Configure this pin to function 1 (SD controller).
*/
sdmmc3_cd@0 {
pad-offset = <0x3a0>;
mode-func = <1>;
};
};
chosen {
stdout-path = "/serial";
};
cpus {
#address-cells = <1>;
#size-cells = <0>;
cpu@0 {
device_type = "cpu";
compatible = "intel,baytrail-cpu";
reg = <0>;
intel,apic-id = <0>;
};
cpu@1 {
device_type = "cpu";
compatible = "intel,baytrail-cpu";
reg = <1>;
intel,apic-id = <4>;
};
};
pci {
compatible = "intel,pci-baytrail", "pci-x86";
#address-cells = <3>;
#size-cells = <2>;
u-boot,dm-pre-reloc;
ranges = <0x02000000 0x0 0x80000000 0x80000000 0 0x40000000
0x42000000 0x0 0xc0000000 0xc0000000 0 0x20000000
0x01000000 0x0 0x2000 0x2000 0 0xe000>;
pch@1f,0 {
reg = <0x0000f800 0 0 0 0>;
compatible = "pci8086,0f1c", "intel,pch9";
#address-cells = <1>;
#size-cells = <1>;
irq-router {
compatible = "intel,irq-router";
intel,pirq-config = "ibase";
intel,ibase-offset = <0x50>;
intel,actl-addr = <0>;
intel,pirq-link = <8 8>;
intel,pirq-mask = <0xdee0>;
intel,pirq-routing = <
/* BayTrail PCI devices */
PCI_BDF(0, 2, 0) INTA PIRQA
PCI_BDF(0, 3, 0) INTA PIRQA
PCI_BDF(0, 16, 0) INTA PIRQA
PCI_BDF(0, 17, 0) INTA PIRQA
PCI_BDF(0, 18, 0) INTA PIRQA
PCI_BDF(0, 19, 0) INTA PIRQA
PCI_BDF(0, 20, 0) INTA PIRQA
PCI_BDF(0, 21, 0) INTA PIRQA
PCI_BDF(0, 22, 0) INTA PIRQA
PCI_BDF(0, 23, 0) INTA PIRQA
PCI_BDF(0, 24, 0) INTA PIRQA
PCI_BDF(0, 24, 1) INTC PIRQC
PCI_BDF(0, 24, 2) INTD PIRQD
PCI_BDF(0, 24, 3) INTB PIRQB
PCI_BDF(0, 24, 4) INTA PIRQA
PCI_BDF(0, 24, 5) INTC PIRQC
PCI_BDF(0, 24, 6) INTD PIRQD
PCI_BDF(0, 24, 7) INTB PIRQB
PCI_BDF(0, 26, 0) INTA PIRQA
PCI_BDF(0, 27, 0) INTA PIRQA
PCI_BDF(0, 28, 0) INTA PIRQA
PCI_BDF(0, 28, 1) INTB PIRQB
PCI_BDF(0, 28, 2) INTC PIRQC
PCI_BDF(0, 28, 3) INTD PIRQD
PCI_BDF(0, 29, 0) INTA PIRQA
PCI_BDF(0, 30, 0) INTA PIRQA
PCI_BDF(0, 30, 1) INTD PIRQD
PCI_BDF(0, 30, 2) INTB PIRQB
PCI_BDF(0, 30, 3) INTC PIRQC
PCI_BDF(0, 30, 4) INTD PIRQD
PCI_BDF(0, 30, 5) INTB PIRQB
PCI_BDF(0, 31, 3) INTB PIRQB
/*
* PCIe root ports downstream
* interrupts
*/
PCI_BDF(1, 0, 0) INTA PIRQA
PCI_BDF(1, 0, 0) INTB PIRQB
PCI_BDF(1, 0, 0) INTC PIRQC
PCI_BDF(1, 0, 0) INTD PIRQD
PCI_BDF(2, 0, 0) INTA PIRQB
PCI_BDF(2, 0, 0) INTB PIRQC
PCI_BDF(2, 0, 0) INTC PIRQD
PCI_BDF(2, 0, 0) INTD PIRQA
PCI_BDF(3, 0, 0) INTA PIRQC
PCI_BDF(3, 0, 0) INTB PIRQD
PCI_BDF(3, 0, 0) INTC PIRQA
PCI_BDF(3, 0, 0) INTD PIRQB
PCI_BDF(4, 0, 0) INTA PIRQD
PCI_BDF(4, 0, 0) INTB PIRQA
PCI_BDF(4, 0, 0) INTC PIRQB
PCI_BDF(4, 0, 0) INTD PIRQC
>;
};
spi: spi {
#address-cells = <1>;
#size-cells = <0>;
compatible = "intel,ich9-spi";
spi-flash@0 {
#address-cells = <1>;
#size-cells = <1>;
reg = <0>;
compatible = "stmicro,n25q064a",
"spi-flash";
memory-map = <0xff800000 0x00800000>;
rw-mrc-cache {
label = "rw-mrc-cache";
reg = <0x006f0000 0x00010000>;
};
};
};
gpioa {
compatible = "intel,ich6-gpio";
u-boot,dm-pre-reloc;
reg = <0 0x20>;
bank-name = "A";
};
gpiob {
compatible = "intel,ich6-gpio";
u-boot,dm-pre-reloc;
reg = <0x20 0x20>;
bank-name = "B";
};
gpioc {
compatible = "intel,ich6-gpio";
u-boot,dm-pre-reloc;
reg = <0x40 0x20>;
bank-name = "C";
};
gpiod {
compatible = "intel,ich6-gpio";
u-boot,dm-pre-reloc;
reg = <0x60 0x20>;
bank-name = "D";
};
gpioe {
compatible = "intel,ich6-gpio";
u-boot,dm-pre-reloc;
reg = <0x80 0x20>;
bank-name = "E";
};
gpiof {
compatible = "intel,ich6-gpio";
u-boot,dm-pre-reloc;
reg = <0xA0 0x20>;
bank-name = "F";
};
};
};
fsp {
compatible = "intel,baytrail-fsp";
fsp,mrc-init-tseg-size = <0>;
fsp,mrc-init-mmio-size = <0x800>;
fsp,mrc-init-spd-addr1 = <0xa0>;
fsp,mrc-init-spd-addr2 = <0xa2>;
fsp,emmc-boot-mode = <1>;
fsp,enable-sdio;
fsp,enable-sdcard;
fsp,enable-hsuart1;
fsp,enable-spi;
fsp,enable-sata;
fsp,sata-mode = <1>;
fsp,enable-lpe;
fsp,lpss-sio-enable-pci-mode;
fsp,enable-dma0;
fsp,enable-dma1;
fsp,enable-i2c0;
fsp,enable-i2c1;
fsp,enable-i2c2;
fsp,enable-i2c3;
fsp,enable-i2c4;
fsp,enable-i2c5;
fsp,enable-i2c6;
fsp,enable-pwm0;
fsp,enable-pwm1;
fsp,igd-dvmt50-pre-alloc = <2>;
fsp,aperture-size = <2>;
fsp,gtt-size = <2>;
fsp,serial-debug-port-address = <0x3f8>;
fsp,serial-debug-port-type = <1>;
fsp,scc-enable-pci-mode;
fsp,os-selection = <4>;
fsp,emmc45-ddr50-enabled;
fsp,emmc45-retune-timer-value = <8>;
fsp,enable-igd;
fsp,enable-memory-down;
fsp,memory-down-params {
compatible = "intel,baytrail-fsp-mdp";
fsp,dram-speed = <1>;
fsp,dram-type = <1>;
fsp,dimm-0-enable;
fsp,dimm-width = <1>;
fsp,dimm-density = <2>;
fsp,dimm-bus-width = <3>;
fsp,dimm-sides = <0>;
fsp,dimm-tcl = <0xb>;
fsp,dimm-trpt-rcd = <0xb>;
fsp,dimm-twr = <0xc>;
fsp,dimm-twtr = <6>;
fsp,dimm-trrd = <6>;
fsp,dimm-trtp = <6>;
fsp,dimm-tfaw = <0x14>;
};
};
microcode {
update@0 {
#include "microcode/m0130673325.dtsi"
};
update@1 {
#include "microcode/m0130679907.dtsi"
};
};
};
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