As per the DM[1] Dated June 2016–Revised February 2017, Table 5-3, DRA71 supports the following OPPs for various voltage domains:
VDD_MPU: OPP_NOM VDD_CORE: OPP_NOM VDD_GPU: OPP_NOM VDD_DSPEVE: OPP_NOM, OPP_HIGH VDD_IVA: OPP_NOM, OPP_HIGH
This patch add support for selection of the above OPPs instead of using OPP_NOM for all voltage domains.
[1] http://www.ti.com/lit/ds/symlink/dra718.pdf
Reported-by: Vishal Mahaveer vishalm@ti.com Signed-off-by: Lokesh Vutla lokeshvutla@ti.com --- board/ti/dra7xx/evm.c | 29 +++++++++++++++++++++++------ 1 file changed, 23 insertions(+), 6 deletions(-)
diff --git a/board/ti/dra7xx/evm.c b/board/ti/dra7xx/evm.c index ae2d59da43..0984475d3b 100644 --- a/board/ti/dra7xx/evm.c +++ b/board/ti/dra7xx/evm.c @@ -456,27 +456,44 @@ int get_voltrail_opp(int rail_offset) { int opp;
- /* - * DRA71x supports only OPP_NOM. - */ - if (board_is_dra71x_evm()) - return OPP_NOM; - switch (rail_offset) { case VOLT_MPU: opp = DRA7_MPU_OPP; + /* DRA71x supports only OPP_NOM for MPU */ + if (board_is_dra71x_evm()) + opp = OPP_NOM; break; case VOLT_CORE: opp = DRA7_CORE_OPP; + /* DRA71x supports only OPP_NOM for CORE */ + if (board_is_dra71x_evm()) + opp = OPP_NOM; break; case VOLT_GPU: opp = DRA7_GPU_OPP; + /* DRA71x supports only OPP_NOM for GPU */ + if (board_is_dra71x_evm()) + opp = OPP_NOM; break; case VOLT_EVE: opp = DRA7_DSPEVE_OPP; + /* + * DRA71x does not support OPP_OD for EVE. + * If OPP_OD is selected by menuconfig, fallback + * to OPP_NOM. + */ + if (board_is_dra71x_evm() && opp == OPP_OD) + opp = OPP_NOM; break; case VOLT_IVA: opp = DRA7_IVA_OPP; + /* + * DRA71x does not support OPP_OD for IVA. + * If OPP_OD is selected by menuconfig, fallback + * to OPP_NOM. + */ + if (board_is_dra71x_evm() && opp == OPP_OD) + opp = OPP_NOM; break; default: opp = OPP_NOM;