diff options
Diffstat (limited to 'drivers/net/ipa/ipa_uc.c')
| -rw-r--r-- | drivers/net/ipa/ipa_uc.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/drivers/net/ipa/ipa_uc.c b/drivers/net/ipa/ipa_uc.c index a1f8db00d55a..1a0b04e0ab74 100644 --- a/drivers/net/ipa/ipa_uc.c +++ b/drivers/net/ipa/ipa_uc.c @@ -35,31 +35,34 @@ */ /* Supports hardware interface version 0x2000 */ -/* Offset relative to the base of the IPA shared address space of the - * shared region used for communication with the microcontroller. The - * region is 128 bytes in size, but only the first 40 bytes are used. - */ -#define IPA_MEM_UC_OFFSET 0x0000 - /* Delay to allow a the microcontroller to save state when crashing */ #define IPA_SEND_DELAY 100 /* microseconds */ /** * struct ipa_uc_mem_area - AP/microcontroller shared memory area * @command: command code (AP->microcontroller) + * @reserved0: reserved bytes; avoid reading or writing * @command_param: low 32 bits of command parameter (AP->microcontroller) * @command_param_hi: high 32 bits of command parameter (AP->microcontroller) * * @response: response code (microcontroller->AP) + * @reserved1: reserved bytes; avoid reading or writing * @response_param: response parameter (microcontroller->AP) * * @event: event code (microcontroller->AP) + * @reserved2: reserved bytes; avoid reading or writing * @event_param: event parameter (microcontroller->AP) * * @first_error_address: address of first error-source on SNOC * @hw_state: state of hardware (including error type information) * @warning_counter: counter of non-fatal hardware errors + * @reserved3: reserved bytes; avoid reading or writing * @interface_version: hardware-reported interface version + * @reserved4: reserved bytes; avoid reading or writing + * + * A shared memory area at the base of IPA resident memory is used for + * communication with the microcontroller. The region is 128 bytes in + * size, but only the first 40 bytes (structured this way) are used. */ struct ipa_uc_mem_area { u8 command; /* enum ipa_uc_command */ |