net: ipa: a few last IPA register cleanups

Some last cleanups for the existing IPA register definitions:
  - Remove the definition of IPA_REG_ENABLED_PIPES_OFFSET, because
    it is not used.
  - Use "IPA_" instead of "BAM_" as the prefix on fields associated
    with the FLAVOR_0 register.  We use GSI (not BAM), but the
    fields apply to both GSI and BAM.
  - Get rid of the definition of IPA_CS_RSVD; it is never used.
  - Add two missing field mask definitions for the INIT_DEAGGR
    endpoint register.
  - Eliminate a few of the defined sequencer types, because they
    are unused.  We can add them back when needed.
  - Add a field mask to indicate which bit causes an interrupt on
    the microcontroller.

Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

1 files changed, 6 insertions, 1 deletions

diff --git a/drivers/net/ipa/ipa_uc.c b/drivers/net/ipa/ipa_uc.c
index be55f8a192d1..dee58a6596d4 100644
--- a/drivers/net/ipa/ipa_uc.c
+++ b/drivers/net/ipa/ipa_uc.c
@@ -192,14 +192,19 @@ void ipa_uc_teardown(struct ipa *ipa)
 static void send_uc_command(struct ipa *ipa, u32 command, u32 command_param)
 {
 	struct ipa_uc_mem_area *shared = ipa_uc_shared(ipa);
+	u32 val;
 
+	/* Fill in the command data */
 	shared->command = command;
 	shared->command_param = cpu_to_le32(command_param);
 	shared->command_param_hi = 0;
 	shared->response = 0;
 	shared->response_param = 0;
 
-	iowrite32(1, ipa->reg_virt + IPA_REG_IRQ_UC_OFFSET);
+	/* Use an interrupt to tell the microcontroller the command is ready */
+	val = u32_encode_bits(1, UC_INTR_FMASK);
+
+	iowrite32(val, ipa->reg_virt + IPA_REG_IRQ_UC_OFFSET);
 }
 
 /* Tell the microcontroller the AP is shutting down */