New Port: Eros Q Native

What works:
- LCD: 16-bit RGB565
- all buttons, including scrollwheel
- SD Card
- Battery level and charging/not charging status
- USB
- audio
- sample rate switching
- HP / LO detect, with "safe" fixed LO volume -
   LO volume will only be put to user-defined max volume
   if headphones are not present.
- rtc
- Plugins build, tried a couple and they seem OK
- Bootloader, installable to nand via usbboot

What doesn't work:
- Dual Boot
- power on/off has intermittent, low volume audio click
   (sometimes it's completely silent, sometimes there's
    a click)
- Audio uses 16-bit volume scaling, so clicking/popping
   is pretty bad at lower volumes - need 32 bit volume
   scaling, 24 bit I2S data
- USB HID keys not yet defined
- no jztool support

Unknowns:
- Stereo Switch pins: Direction select, AC_DC
   (probably not even hooked up)
- What is the actual purpose of the Stereo Swtich?
- How does the bluetooth module connect?

"Someday" stuff:
- get LCD working at higher bit depth
- Bluetooth

Change-Id: I70dda8fc092c6e3f4352f2245e4164193f803c33

1 files changed, 71 insertions, 0 deletions

diff --git a/firmware/target/mips/ingenic_x1000/erosqnative/gpio-target.h b/firmware/target/mips/ingenic_x1000/erosqnative/gpio-target.h
new file mode 100644
index 0000000000..376eae136e
--- /dev/null
+++ b/firmware/target/mips/ingenic_x1000/erosqnative/gpio-target.h
@@ -0,0 +1,71 @@
+/* -------------------- NOTES ------------------- */
+
+/* I don't think we have any devices on I2C1, the pins /may/ be reused. */
+/* DEFINE_PINGROUP(I2C1,           GPIO_C,      3 << 26,   GPIOF_DEVICE(0)) */
+
+/* OF has SD Card power listed as 0x2a - PB10, but it seems to work without. */
+
+/* I think BT power reg is pin 0x53 - C19 */
+
+/* USB_DETECT D3 chosen by trial-and-error. */
+
+/* I have a suspicion this isn't right for AXP_IRQ,
+ * and it's not used right now anyway.  copied from m3k. */
+/* DEFINE_GPIO(AXP_IRQ,            GPIO_PB(10),    GPIOF_INPUT) */
+
+/* ---------------------------------------------- */
+
+/*              Name            Port    Pins            Function */
+DEFINE_PINGROUP(LCD_DATA,       GPIO_A, 0xffff <<  0,   GPIOF_DEVICE(1))
+DEFINE_PINGROUP(LCD_CONTROL,    GPIO_B,   0x1a << 16,   GPIOF_DEVICE(1))
+DEFINE_PINGROUP(MSC0,           GPIO_A,   0x3f << 20,   GPIOF_DEVICE(1))
+DEFINE_PINGROUP(SFC,            GPIO_A,   0x3f << 26,   GPIOF_DEVICE(1))
+DEFINE_PINGROUP(I2S,            GPIO_B,   0x1f <<  0,   GPIOF_DEVICE(1))
+DEFINE_PINGROUP(I2C2,           GPIO_D,      3 <<  0,   GPIOF_DEVICE(1))
+
+/*          Name                Pin             Function */
+/* mute DAC - 0 - mute, 1 - play. Affects both HP and LO. */
+DEFINE_GPIO(PCM5102A_XMIT,      GPIO_PB(12),    GPIOF_OUTPUT(0))
+
+/* mute HP amp, no effect on LO. 0 - mute, 1 - play */
+DEFINE_GPIO(MAX97220_SHDN,      GPIO_PB(8),     GPIOF_OUTPUT(0))
+
+/* mute audio mux, only affects Headphone out.
+ * 0 - play, 1 - mute */
+DEFINE_GPIO(ISL54405_MUTE,      GPIO_PB(15),    GPIOF_OUTPUT(1))
+
+/* switches HP on/off - 0 HP on, 1 hp off, has no effect on LO.
+ * As best I can tell, it switches HP Out sources between HP amp and something
+ * not implemented - there seem to be resistors missing. */
+DEFINE_GPIO(ISL54405_SEL,       GPIO_PB(5),     GPIOF_OUTPUT(0))
+
+/* DAC AVDD */
+DEFINE_GPIO(PCM5102A_ANALOG_PWR,       GPIO_PB(9),     GPIOF_OUTPUT(0))
+
+/* Headphone Amp power */
+DEFINE_GPIO(MAX97220_POWER,     GPIO_PB(6),     GPIOF_OUTPUT(0))
+
+/* SD card */
+DEFINE_GPIO(MSC0_CD,            GPIO_PB(11),    GPIOF_INPUT)
+
+/* USB */
+DEFINE_GPIO(USB_DETECT,         GPIO_PD(3),     GPIOF_INPUT)
+DEFINE_GPIO(USB_DRVVBUS,        GPIO_PB(25),    GPIOF_OUTPUT(0))
+
+/* LCD */
+DEFINE_GPIO(LCD_PWR,            GPIO_PB(14),    GPIOF_OUTPUT(0))
+DEFINE_GPIO(LCD_RESET,          GPIO_PB(13),    GPIOF_OUTPUT(0))
+DEFINE_GPIO(LCD_CE,             GPIO_PB(18),    GPIOF_OUTPUT(1))
+DEFINE_GPIO(LCD_RD,             GPIO_PB(16),    GPIOF_OUTPUT(1))
+
+/* Buttons */
+DEFINE_GPIO(BTN_PLAY,           GPIO_PA(16),    GPIOF_INPUT)
+DEFINE_GPIO(BTN_VOL_UP,         GPIO_PA(17),    GPIOF_INPUT)
+DEFINE_GPIO(BTN_VOL_DOWN,       GPIO_PA(19),    GPIOF_INPUT)
+DEFINE_GPIO(BTN_POWER,          GPIO_PB(7),     GPIOF_INPUT)
+DEFINE_GPIO(BTN_MENU,           GPIO_PB(28),    GPIOF_INPUT)
+DEFINE_GPIO(BTN_BACK,           GPIO_PD(5),     GPIOF_INPUT)
+DEFINE_GPIO(BTN_PREV,           GPIO_PD(4),     GPIOF_INPUT)
+DEFINE_GPIO(BTN_NEXT,           GPIO_PC(24),    GPIOF_INPUT)
+DEFINE_GPIO(BTN_SCROLL_A,       GPIO_PB(24),    GPIOF_INPUT)
+DEFINE_GPIO(BTN_SCROLL_B,       GPIO_PB(23),    GPIOF_INPUT)