From: ken <Ken Lin> <yungching0725@gmail.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH 1/2] board: ge: bx50v3: fix AR8033 reset timing issue
Date: Thu, 2 Feb 2017 03:59:09 +0800 [thread overview]
Message-ID: <20170201195909.23311-1-user@ken-notebook> (raw)
Add the delay (10ms) to ensure the clock is stable and to meet the clock-to-reset(1ms) requirement recommended in the AR8033 datasheet
---
board/ge/bx50v3/bx50v3.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/board/ge/bx50v3/bx50v3.c b/board/ge/bx50v3/bx50v3.c
index 2fc1144..80b4ba1 100644
--- a/board/ge/bx50v3/bx50v3.c
+++ b/board/ge/bx50v3/bx50v3.c
@@ -103,8 +103,9 @@ static void setup_iomux_enet(void)
/* Reset AR8033 PHY */
gpio_direction_output(IMX_GPIO_NR(1, 28), 0);
- udelay(500);
+ mdelay(10);
gpio_set_value(IMX_GPIO_NR(1, 28), 1);
+ mdelay(1);
}
static iomux_v3_cfg_t const usdhc2_pads[] = {
--
2.10.2
next reply other threads:[~2017-02-01 19:59 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-02-01 19:59 ken [this message]
2017-02-03 1:15 ` [U-Boot] [PATCH 1/2] board: ge: bx50v3: fix AR8033 reset timing issue Fabio Estevam
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