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-rw-r--r--board/phytec/pcm052/pcm052.c15
1 files changed, 14 insertions, 1 deletions
diff --git a/board/phytec/pcm052/pcm052.c b/board/phytec/pcm052/pcm052.c
index e1ebe8e75d..b52432e653 100644
--- a/board/phytec/pcm052/pcm052.c
+++ b/board/phytec/pcm052/pcm052.c
@@ -403,7 +403,20 @@ int board_phy_config(struct phy_device *phydev)
int checkboard(void)
{
#ifdef CONFIG_TARGET_BK4R1
- puts("Board: BK4r1 (L333)\n");
+ u32 *gpio3_pdir = (u32 *)(GPIO3_BASE_ADDR + 0x10);
+
+ /*
+ * USB_RESET_N (PTC30 - GPIO103 - PORT3[7]):
+ * L333 -> pull up added -> read 1
+ * L320 -> no pull up -> read 0
+ *
+ * Default iomuxc_ptc30 value after reset: 0x300061 -> RCON28
+ * - input enabled, pull (up/down) disabled
+ */
+ if (*gpio3_pdir & BIT(7))
+ puts("Board: BK4r1 (L333)\n");
+ else
+ puts("Board: BK4r1 (L320)\n");
#else
puts("Board: PCM-052\n");
#endif