diff mbox

[U-Boot,v5,4/6] mx6cuboxi: Differentiate Cubox-i and Hummingboard

Message ID 1429998441-12359-4-git-send-email-festevam@gmail.com
State Awaiting Upstream
Delegated to: Stefano Babic
Headers show

Commit Message

Fabio Estevam April 25, 2015, 9:47 p.m. UTC 
From: Fabio Estevam <fabio.estevam@freescale.com>

Introduce is_hummingboard() function that reads GPIOs that can distinguish
between Cubox-i and Hummingboard.

Print the board name accordingly.

Based on a patch from Rabeeh Khoury.

Signed-off-by: Rabeeh Khoury <rabeeh@solid-run.com>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
---
Changes since v4:
- None

 board/solidrun/mx6cuboxi/mx6cuboxi.c | 41 +++++++++++++++++++++++++++++++++++-
 1 file changed, 40 insertions(+), 1 deletion(-)

Comments

Tom Rini April 26, 2015, 12:32 a.m. UTC | #1 
On Sat, Apr 25, 2015 at 06:47:19PM -0300, Fabio Estevam wrote:

> From: Fabio Estevam <fabio.estevam@freescale.com>
> 
> Introduce is_hummingboard() function that reads GPIOs that can distinguish
> between Cubox-i and Hummingboard.
> 
> Print the board name accordingly.
> 
> Based on a patch from Rabeeh Khoury.
> 
> Signed-off-by: Rabeeh Khoury <rabeeh@solid-run.com>
> Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>

Reviewed-by: Tom Rini <trini@konsulko.com>
Stefano Babic April 27, 2015, 11:09 a.m. UTC | #2 
On 25/04/2015 23:47, Fabio Estevam wrote:
> From: Fabio Estevam <fabio.estevam@freescale.com>
> 
> Introduce is_hummingboard() function that reads GPIOs that can distinguish
> between Cubox-i and Hummingboard.
> 
> Print the board name accordingly.
> 
> Based on a patch from Rabeeh Khoury.
> 
> Signed-off-by: Rabeeh Khoury <rabeeh@solid-run.com>
> Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
> ---

Applied to u-boot-imx, thanks !

Best regards,
Stefano Babic
diff mbox

Patch

diff --git a/board/solidrun/mx6cuboxi/mx6cuboxi.c b/board/solidrun/mx6cuboxi/mx6cuboxi.c
index 1f240ae..83410b2 100644
--- a/board/solidrun/mx6cuboxi/mx6cuboxi.c
+++ b/board/solidrun/mx6cuboxi/mx6cuboxi.c
@@ -71,6 +71,12 @@  static iomux_v3_cfg_t const usdhc2_pads[] = {
 	IOMUX_PADS(PAD_SD2_DAT3__SD2_DATA3	| MUX_PAD_CTRL(USDHC_PAD_CTRL)),
 };
 
+static iomux_v3_cfg_t const hb_cbi_sense[] = {
+	/* These pins are for sensing if it is a CuBox-i or a HummingBoard */
+	IOMUX_PADS(PAD_KEY_ROW1__GPIO4_IO09  | MUX_PAD_CTRL(UART_PAD_CTRL)),
+	IOMUX_PADS(PAD_EIM_DA4__GPIO3_IO04   | MUX_PAD_CTRL(UART_PAD_CTRL)),
+};
+
 static void setup_iomux_uart(void)
 {
 	SETUP_IOMUX_PADS(uart1_pads);
@@ -167,9 +173,42 @@  int board_init(void)
 	return 0;
 }
 
+static bool is_hummingboard(void)
+{
+	int val1, val2;
+
+	SETUP_IOMUX_PADS(hb_cbi_sense);
+
+	gpio_direction_input(IMX_GPIO_NR(4, 9));
+	gpio_direction_input(IMX_GPIO_NR(3, 4));
+
+	val1 = gpio_get_value(IMX_GPIO_NR(4, 9));
+	val2 = gpio_get_value(IMX_GPIO_NR(3, 4));
+
+	/*
+	 * Machine selection -
+	 * Machine        val1, val2
+	 * -------------------------
+	 * HB rev 3.x     x     0
+	 * CBi            0     1
+	 * HB             1     1
+	 */
+
+	if (val2 == 0)
+		return true;
+	else if (val1 == 0)
+		return false;
+	else
+		return true;
+}
+
 int checkboard(void)
 {
-	puts("Board: MX6 Hummingboard\n");
+	if (is_hummingboard())
+		puts("Board: MX6 Hummingboard\n");
+	else
+		puts("Board: MX6 Cubox-i\n");
+
 	return 0;
 }