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rpi: Add support for Raspberry Pi Zero W

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This patch adds support and autodetection for Raspberry Pi Zero W.
It also adds more revisions for Raspbery Pi Zero from here:
http://elinux.org/RPi_HardwareHistory

Signed-off-by: Sergey Kiselev <sergey.kiselev@intel.com>
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
This commit is contained in:
Sergey Kiselev
2017-09-26 11:21:02 -07:00
committed by Brendan Le Foll
parent 721c5533eb
commit 99287f40a1
2 changed files with 15 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
include/arm/raspberry_pi.h
View File

@@ -38,6 +38,7 @@ extern "C" {
#define MRAA_RASPBERRY_PI_COMPUTE_MODULE_PINCOUNT 41
#define MRAA_RASPBERRY_PI_ZERO_PINCOUNT 41
#define MRAA_RASPBERRY_PI3_B_PINCOUNT 41
#define MRAA_RASPBERRY_PI_ZERO_W_PINCOUNT 41
mraa_board_t *
mraa_raspberry_pi();

16
src/arm/raspberry_pi.c
View File

@@ -42,6 +42,7 @@
#define PLATFORM_NAME_RASPBERRY_PI2_B_REV_1 "Raspberry Pi 2 Model B Rev 1"
#define PLATFORM_NAME_RASPBERRY_PI_ZERO "Raspberry Pi Zero"
#define PLATFORM_NAME_RASPBERRY_PI3_B "Raspberry Pi 3 Model B"
#define PLATFORM_NAME_RASPBERRY_PI_ZERO_W "Raspberry Pi Zero W"
#define PLATFORM_RASPBERRY_PI_B_REV_1 1
#define PLATFORM_RASPBERRY_PI_A_REV_2 2
#define PLATFORM_RASPBERRY_PI_B_REV_2 3
@@ -51,6 +52,7 @@
#define PLATFORM_RASPBERRY_PI2_B_REV_1 7
#define PLATFORM_RASPBERRY_PI_ZERO 8
#define PLATFORM_RASPBERRY_PI3_B 9
#define PLATFORM_RASPBERRY_PI_ZERO_W 10
#define MMAP_PATH "/dev/mem"
#define BCM2835_PERI_BASE 0x20000000
#define BCM2836_PERI_BASE 0x3f000000
@@ -472,7 +474,7 @@ mraa_raspberry_pi()
b->platform_name = PLATFORM_NAME_RASPBERRY_PI_B_REV_2;
platform_detected = PLATFORM_RASPBERRY_PI_B_REV_2;
b->phy_pin_count = MRAA_RASPBERRY_PI_AB_REV_2_PINCOUNT;
} else if (strstr(line, "900092")) {
} else if (strstr(line, "900092") || strstr(line, "900093") || strstr(line, "920093")) {
b->platform_name = PLATFORM_NAME_RASPBERRY_PI_ZERO;
platform_detected = PLATFORM_RASPBERRY_PI_ZERO;
b->phy_pin_count = MRAA_RASPBERRY_PI_ZERO_PINCOUNT;
@@ -505,6 +507,10 @@ mraa_raspberry_pi()
b->phy_pin_count = MRAA_RASPBERRY_PI3_B_PINCOUNT;
peripheral_base = BCM2837_PERI_BASE;
block_size = BCM2837_BLOCK_SIZE;
} else if (strstr(line, "9000c1")) {
b->platform_name = PLATFORM_NAME_RASPBERRY_PI_ZERO_W;
platform_detected = PLATFORM_RASPBERRY_PI_ZERO_W;
b->phy_pin_count = MRAA_RASPBERRY_PI_ZERO_W_PINCOUNT;
} else {
b->platform_name = PLATFORM_NAME_RASPBERRY_PI_B_REV_1;
platform_detected = PLATFORM_RASPBERRY_PI_B_REV_1;
@@ -563,6 +569,10 @@ mraa_raspberry_pi()
b->platform_name = PLATFORM_NAME_RASPBERRY_PI3_B;
platform_detected = PLATFORM_RASPBERRY_PI3_B;
b->phy_pin_count = MRAA_RASPBERRY_PI3_B_PINCOUNT;
} else if (mraa_file_contains(compatible_path, "raspberrypi,model-zero-w")) {
b->platform_name = PLATFORM_NAME_RASPBERRY_PI_ZERO_W;
platform_detected = PLATFORM_RASPBERRY_PI_ZERO_W;
b->phy_pin_count = MRAA_RASPBERRY_PI_ZERO_W_PINCOUNT;
}
}
@@ -828,7 +838,9 @@ mraa_raspberry_pi()
if ((platform_detected == PLATFORM_RASPBERRY_PI_A_PLUS_REV_1) ||
(platform_detected == PLATFORM_RASPBERRY_PI_B_PLUS_REV_1) ||
(platform_detected == PLATFORM_RASPBERRY_PI2_B_REV_1) ||
(platform_detected == PLATFORM_RASPBERRY_PI3_B) || (platform_detected == PLATFORM_RASPBERRY_PI_ZERO)) {
(platform_detected == PLATFORM_RASPBERRY_PI3_B) ||
(platform_detected == PLATFORM_RASPBERRY_PI_ZERO) ||
(platform_detected == PLATFORM_RASPBERRY_PI_ZERO_W)) {
strncpy(b->pins[27].name, "ID_SD", MRAA_PIN_NAME_SIZE);
b->pins[27].capabilities = (mraa_pincapabilities_t){ 1, 0, 0, 0, 0, 0, 0, 0 };