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[U-Boot,2/4] arm: rmobile: silk: Disable ethernet pins pull-up

Message ID 1424796871-12550-1-git-send-email-vladimir.barinov@cogentembedded.com
State Accepted, archived
Delegated to: Nobuhiro Iwamatsu
Headers show

Commit Message

Vladimir Barinov Feb. 24, 2015, 4:54 p.m. UTC 
Disable pull-ups on ethrenet lines

Signed-off-by: Vladimir Barinov <vladimir.barinov+renesas@cogentembedded.com>
---
 board/renesas/silk/silk.c | 8 ++++++++
 1 file changed, 8 insertions(+)
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Patch

diff --git a/board/renesas/silk/silk.c b/board/renesas/silk/silk.c
index e124010..c97a2a0 100644
--- a/board/renesas/silk/silk.c
+++ b/board/renesas/silk/silk.c
@@ -69,6 +69,11 @@  int board_early_init_f(void)
 	return 0;
 }
 
+/* LSI pin pull-up control */
+#define PUPR3		0xe606010C
+#define PUPR3_ETH	0x006FF800
+#define PUPR1		0xe6060104
+#define PUPR1_DREQ0_N	(1 << 20)
 int board_init(void)
 {
 	/* adress of boot parameters */
@@ -93,7 +98,10 @@  int board_init(void)
 	gpio_request(GPIO_FN_IRQ8, NULL);
 
 	/* PHY reset */
+	mstp_clrbits_le32(PUPR3, PUPR3, PUPR3_ETH);
 	gpio_request(GPIO_GP_1_24, NULL);
+	mstp_clrbits_le32(PUPR1, PUPR1, PUPR1_DREQ0_N);
+
 	gpio_direction_output(GPIO_GP_1_24, 0);
 	mdelay(20);
 	gpio_set_value(GPIO_GP_1_24, 1);