summaryrefslogtreecommitdiff
path: root/board/solidrun
diff options
context:
space:
mode:
authorFabio Estevam <fabio.estevam@freescale.com>2015-04-25 18:47:19 -0300
committerStefano Babic <sbabic@denx.de>2015-04-27 13:13:57 +0200
commitfeb6cc5cb3bfd2c99e7092ac3ba6adc726ca4100 (patch)
treee8b41f7cc4016d7a59990511bf20ccb75ee1777b /board/solidrun
parent8cb6817e3a38ad8bed52d6daa1815c6853fb82ac (diff)
downloadu-boot-imx-feb6cc5cb3bfd2c99e7092ac3ba6adc726ca4100.zip
u-boot-imx-feb6cc5cb3bfd2c99e7092ac3ba6adc726ca4100.tar.gz
u-boot-imx-feb6cc5cb3bfd2c99e7092ac3ba6adc726ca4100.tar.bz2
mx6cuboxi: Differentiate Cubox-i and Hummingboard
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>
Diffstat (limited to 'board/solidrun')
-rw-r--r--board/solidrun/mx6cuboxi/mx6cuboxi.c41
1 files changed, 40 insertions, 1 deletions
diff --git a/board/solidrun/mx6cuboxi/mx6cuboxi.c b/board/solidrun/mx6cuboxi/mx6cuboxi.c
index 59f322a..9123255 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;
}