From 8824cfc19a6e4ae23ca8006bb22b7b6f839b09a8 Mon Sep 17 00:00:00 2001
From: Masahiro Yamada <yamada.masahiro@socionext.com>
Date: Wed, 21 Sep 2016 11:29:02 +0900
Subject: [PATCH] usb: ehci-generic: support reset control for generic EHCI
This driver is designed in a generic manner, so resets should be
handled generically as well.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
---
drivers/usb/host/ehci-generic.c | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/drivers/usb/host/ehci-generic.c b/drivers/usb/host/ehci-generic.c
index 6291ed230b..2190adba67 100644
--- a/drivers/usb/host/ehci-generic.c
+++ b/drivers/usb/host/ehci-generic.c
@@ -6,6 +6,7 @@
#include <common.h>
#include <clk.h>
+#include <reset.h>
#include <asm/io.h>
#include <dm.h>
#include "ehci.h"
@@ -37,6 +38,18 @@ static int ehci_usb_probe(struct udevice *dev)
clk_free(&clk);
}
+ for (i = 0; ; i++) {
+ struct reset_ctl reset;
+ int ret;
+
+ ret = reset_get_by_index(dev, i, &reset);
+ if (ret < 0)
+ break;
+ if (reset_deassert(&reset))
+ printf("failed to deassert reset %d\n", i);
+ reset_free(&reset);
+ }
+
hccr = map_physmem(dev_get_addr(dev), 0x100, MAP_NOCACHE);
hcor = (struct ehci_hcor *)((uintptr_t)hccr +
HC_LENGTH(ehci_readl(&hccr->cr_capbase)));
--
2.39.5