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intel_joule: Update doc with correct PIN behavior

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GPIO and I2C functions of some PINs are not possible
with default BIOS configuration. Current documentation
wrongly shows that the PINs can work as both GPIO and I2C.

This patch fixes this issue and also updated pin conf for
I2C 1 and 2 to disable GPIO functionality.

Signed-off-by: Arun Ravindran <arun.ravindran@intel.com>
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
This commit is contained in:
Arun Ravindran
2017-03-20 11:13:23 +02:00
committed by Brendan Le Foll
parent 6f4b333a31
commit 5e34a5cd3b
2 changed files with 11 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
docs/joule.md
View File

@@ -46,8 +46,8 @@ Pin Mapping
The Intel Joule expansion board has two breakouts, breakout #1 is 1-40 whilst breakout2 is 41-80. The
LEDs are numbered from 100-103.
ISH UART are named as: IURT
ISH I2C are named as:IIC
ISH UART are named as: IURT.
ISH I2C are named as:IIC.
| MRAA Number | Physical Pin | Function |
|-------------|--------------|----------|
@@ -71,7 +71,7 @@ ISH I2C are named as:IIC
| 18 | I2S1CLK | GPIO |
| 19 | IIC1SDA | I2C |
| 20 | I2S1MCL | GPIO |
| 21 | IIC1SCL | I2CO |
| 21 | IIC1SCL | I2C |
| 22 | UART1TX | UART |
| 23 | I2S4SDO | NONE |
| 24 | UART1RX | UART |
@@ -121,13 +121,13 @@ ISH I2C are named as:IIC
| 68 | UART0RX | GPIO UART|
| 69 | SPP0RX | GPIO SPI |
| 70 | UART0RT | GPIO UART|
| 71 | I2C1SDA | GPIO I2C |
| 71 | I2C1SDA | I2C |
| 72 | UART0CT | GPIO UART|
| 73 | I2C1SCL | GPIO I2C |
| 73 | I2C1SCL | I2C |
| 74 | IURT0TX | GPIO UART|
| 75 | I2C2SDA | GPIO I2C |
| 75 | I2C2SDA | I2C |
| 76 | IURT0RX | GPIO UART|
| 77 | I2C2SCL | GPIO I2C |
| 77 | I2C2SCL | I2C |
| 78 | IURT0RT | GPIO UART|
| 79 | RTC_CLK | GPIO |
| 80 | IURT0CT | GPIO UART|

8
src/x86/intel_joule_expansion.c
View File

@@ -584,7 +584,7 @@ mraa_joule_expansion_board()
pos++;
strncpy(b->pins[pos].name, "I2C1SDA", 8);
b->pins[pos].capabilities = (mraa_pincapabilities_t){ 1, 1, 0, 0, 0, 1, 0, 0 };
b->pins[pos].capabilities = (mraa_pincapabilities_t){ 1, 0, 0, 0, 0, 1, 0, 0 };
b->pins[pos].gpio.pinmap = 317;
b->pins[pos].gpio.mux_total = 0;
b->pins[pos].i2c.pinmap = 0;
@@ -601,7 +601,7 @@ mraa_joule_expansion_board()
pos++;
strncpy(b->pins[pos].name, "I2C1SCL", 8);
b->pins[pos].capabilities = (mraa_pincapabilities_t){ 1, 1, 0, 0, 0, 1, 0, 0 };
b->pins[pos].capabilities = (mraa_pincapabilities_t){ 1, 0, 0, 0, 0, 1, 0, 0 };
b->pins[pos].gpio.pinmap = 318;
b->pins[pos].gpio.mux_total = 0;
b->pins[pos].i2c.pinmap = 0;
@@ -618,7 +618,7 @@ mraa_joule_expansion_board()
pos++;
strncpy(b->pins[pos].name, "I2C2SDA", 8);
b->pins[pos].capabilities = (mraa_pincapabilities_t){ 1, 1, 0, 0, 0, 1, 0, 0 };
b->pins[pos].capabilities = (mraa_pincapabilities_t){ 1, 0, 0, 0, 0, 1, 0, 0 };
b->pins[pos].gpio.pinmap = 319;
b->pins[pos].gpio.mux_total = 0;
b->pins[pos].i2c.pinmap = 0;
@@ -635,7 +635,7 @@ mraa_joule_expansion_board()
pos++;
strncpy(b->pins[pos].name, "I2C2SCL", 8);
b->pins[pos].capabilities = (mraa_pincapabilities_t){ 1, 1, 0, 0, 0, 1, 0, 0 };
b->pins[pos].capabilities = (mraa_pincapabilities_t){ 1, 0, 0, 0, 0, 1, 0, 0 };
b->pins[pos].gpio.pinmap = 320;
b->pins[pos].gpio.mux_total = 0;
b->pins[pos].i2c.pinmap = 0;