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| author | Peter Chen <peter.chen@freescale.com> | 2015-02-11 07:44:55 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-03-18 18:19:10 +0300 |
| commit | cb271f3ce969a0fc4ecf9fc4b5a28852509714ed (patch) | |
| tree | 39f34575d899b8cfd0d347ba26564ad62a9bb39b /drivers/usb/chipidea/bits.h | |
| parent | 655d32e9b2b2b912ff86de656eb620627b0df117 (diff) | |
| download | linux-cb271f3ce969a0fc4ecf9fc4b5a28852509714ed.tar.xz | |
usb: chipidea: add chipidea revision information
Define ci_get_revision API to know the controller revision
information according to chipidea 1.1a, 2.0a and 2.5a spec.
Besides, add one entry at struct ci_hdrc to indicate revision
information, it can be used for adding different code for
revisions, eg kinds of errata.
Reviewed-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/chipidea/bits.h')
| -rw-r--r-- | drivers/usb/chipidea/bits.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/usb/chipidea/bits.h b/drivers/usb/chipidea/bits.h index ca57e3dcd3d5..e69424d6e423 100644 --- a/drivers/usb/chipidea/bits.h +++ b/drivers/usb/chipidea/bits.h @@ -15,6 +15,16 @@ #include <linux/usb/ehci_def.h> +/* + * ID + * For 1.x revision, bit24 - bit31 are reserved + * For 2.x revision, bit25 - bit28 are 0x2 + */ +#define TAG (0x1F << 16) +#define REVISION (0xF << 21) +#define VERSION (0xF << 25) +#define CIVERSION (0x7 << 29) + /* HCCPARAMS */ #define HCCPARAMS_LEN BIT(17) |