| Message ID | 20210726232248.24395-1-s-anna@ti.com |
|---|---|
| State | Accepted |
| Commit | a6c64d255e5117bcf78aec6911d7c034fbfe46f7 |
| Delegated to: | Lokesh Vutla |
| Headers | show |
| Series | board: ti: k2g: Program PadConfig_202 before locking RSTMUX8 | expand |
On Mon, 26 Jul 2021 18:22:48 -0500, Suman Anna wrote: > The PADCONFIG_202 register (0x02621328) is affected by the locking > of the RSTMUX8 register (0x02620328), and so cannot be configured > in kernel. This has been confirmed as a hardware bug and affects > all K2G SoCs. > > Setup the pinmux for this pin before locking the RSTMUX8 register > to allow the ICSS1 PRU1 Ethernet PHY port to work properly. The > workaround was added only for the K2G-ICE board to configure the > pins needed for the PRUSS Ethernet usecase. Applied to https://source.denx.de/u-boot/custodians/u-boot-ti.git for-rc, thanks! [1/1] board: ti: k2g: Program PadConfig_202 before locking RSTMUX8 https://source.denx.de/u-boot/custodians/u-boot-ti/-/commit/a6c64d255e -- Thanks and Regards, Lokesh
diff --git a/board/ti/ks2_evm/mux-k2g.h b/board/ti/ks2_evm/mux-k2g.h index fa6c92cbdf1e..f24e62850b8b 100644 --- a/board/ti/ks2_evm/mux-k2g.h +++ b/board/ti/ks2_evm/mux-k2g.h @@ -368,6 +368,9 @@ struct pin_cfg k2g_ice_evm_pin_cfg[] = { { 98, BUFFER_CLASS_B | PIN_PDIS | MODE(0) }, /* MDIO_DATA */ { 99, BUFFER_CLASS_B | PIN_PDIS | MODE(0) }, /* MDIO_CLK */ + /* ICSS1 Padconf Workaround */ + { 202, MODE(1) | PIN_PDIS }, /* PR1_PRU1_GPO1.PR1_PRU1_GPI1 (PR1_MII1_RXD1) */ + { MAX_PIN_N, } };
The PADCONFIG_202 register (0x02621328) is affected by the locking of the RSTMUX8 register (0x02620328), and so cannot be configured in kernel. This has been confirmed as a hardware bug and affects all K2G SoCs. Setup the pinmux for this pin before locking the RSTMUX8 register to allow the ICSS1 PRU1 Ethernet PHY port to work properly. The workaround was added only for the K2G-ICE board to configure the pins needed for the PRUSS Ethernet usecase. Signed-off-by: Suman Anna <s-anna@ti.com> --- board/ti/ks2_evm/mux-k2g.h | 3 +++ 1 file changed, 3 insertions(+)