STAGING: Octeon: Set SSO group mask properly on CN68XX

CN68XX uses SSO instead of POW.

Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com>
Acked-by: David Daney <david.daney@cavium.com>
Cc: David Daney <ddaney.cavm@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: Janne Huttunen <janne.huttunen@nokia.com>
Cc: Aaro Koskinen <aaro.koskinen@nokia.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: devel@driverdev.osuosl.org
Patchwork: https://patchwork.linux-mips.org/patch/10966/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

diff --git a/drivers/staging/octeon/ethernet-rx.c b/drivers/staging/octeon/ethernet-rx.c
index 1636bd9..abfe934 100644 (file)
--- a/drivers/staging/octeon/ethernet-rx.c
+++ b/drivers/staging/octeon/ethernet-rx.c
@@ -172,9 +172,16 @@ static int cvm_oct_napi_poll(struct napi_struct *napi, int budget)
        }
 
        /* Only allow work for our group (and preserve priorities) */
-       old_group_mask = cvmx_read_csr(CVMX_POW_PP_GRP_MSKX(coreid));
-       cvmx_write_csr(CVMX_POW_PP_GRP_MSKX(coreid),
-                      (old_group_mask & ~0xFFFFull) | 1 << pow_receive_group);
+       if (OCTEON_IS_MODEL(OCTEON_CN68XX)) {
+               old_group_mask = cvmx_read_csr(CVMX_SSO_PPX_GRP_MSK(coreid));
+               cvmx_write_csr(CVMX_SSO_PPX_GRP_MSK(coreid),
+                               1ull << pow_receive_group);
+               cvmx_read_csr(CVMX_SSO_PPX_GRP_MSK(coreid)); /* Flush */
+       } else {
+               old_group_mask = cvmx_read_csr(CVMX_POW_PP_GRP_MSKX(coreid));
+               cvmx_write_csr(CVMX_POW_PP_GRP_MSKX(coreid),
+                       (old_group_mask & ~0xFFFFull) | 1 << pow_receive_group);
+       }
 
        if (USE_ASYNC_IOBDMA) {
                cvmx_pow_work_request_async(CVMX_SCR_SCRATCH, CVMX_POW_NO_WAIT);
@@ -397,7 +404,13 @@ static int cvm_oct_napi_poll(struct napi_struct *napi, int budget)
                }
        }
        /* Restore the original POW group mask */
-       cvmx_write_csr(CVMX_POW_PP_GRP_MSKX(coreid), old_group_mask);
+       if (OCTEON_IS_MODEL(OCTEON_CN68XX)) {
+               cvmx_write_csr(CVMX_SSO_PPX_GRP_MSK(coreid), old_group_mask);
+               cvmx_read_csr(CVMX_SSO_PPX_GRP_MSK(coreid)); /* Flush */
+       } else {
+               cvmx_write_csr(CVMX_POW_PP_GRP_MSKX(coreid), old_group_mask);
+       }
+
        if (USE_ASYNC_IOBDMA) {
                /* Restore the scratch area */
                cvmx_scratch_write64(CVMX_SCR_SCRATCH, old_scratch);