diff options
| author | Sanchayan Maity <maitysanchayan@gmail.com> | 2014-12-19 15:25:28 +0530 |
|---|---|---|
| committer | Stefan Agner <stefan.agner@toradex.com> | 2014-12-19 11:04:19 +0100 |
| commit | 5f9f679ebfc42323d1d01091db15371c1850f7af (patch) | |
| tree | 6834eb365fb2b10f71525a54eff08230019904e7 /drivers/usb/chipidea/bits.h | |
| parent | 5cdf2476690e46c141ed5ad689569b3c37c63594 (diff) | |
usb: chipidea: Add chipidea revision information
Define ci_get_revision API to know the controller revision
information according to chipidea 1.1a, 2.0a, 2.4 and 2.5a
spec. Besides, add one entry in struct ci_hdrc to indicate
revision information. This can be used for adding different
code for revisions, implementing erratas.
Signed-off-by: Sanchayan Maity <maitysanchayan@gmail.com>
Signed-off-by: Stefan Agner <stefan.agner@toradex.com>
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..e935ccce7c78 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) |