diff options
| author | Masahiro Yamada <yamada.masahiro@socionext.com> | 2016-09-21 11:29:02 +0900 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2016-09-23 22:25:44 -0400 |
| commit | 8824cfc19a6e4ae23ca8006bb22b7b6f839b09a8 (patch) | |
| tree | 479f59a0b3d632aa16b0a4ad508422dbb4cc829f /drivers | |
| parent | 4815db87f518ba6d4f070cfbcb6959ea7720775d (diff) | |
| download | u-boot-8824cfc19a6e4ae23ca8006bb22b7b6f839b09a8.zip u-boot-8824cfc19a6e4ae23ca8006bb22b7b6f839b09a8.tar.gz u-boot-8824cfc19a6e4ae23ca8006bb22b7b6f839b09a8.tar.bz2 | |
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>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/usb/host/ehci-generic.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/usb/host/ehci-generic.c b/drivers/usb/host/ehci-generic.c index 6291ed2..2190adb 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))); |