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| author | Geert Uytterhoeven <geert+renesas@glider.be> | 2023-03-08 13:42:42 +0300 |
|---|---|---|
| committer | Geert Uytterhoeven <geert+renesas@glider.be> | 2023-03-30 16:39:05 +0300 |
| commit | 7f25d5b04af2ec0b85a18071ab59f9a6e456dfe0 (patch) | |
| tree | a7928f680a17562ffe7f32a91e59baf888a0981c /drivers/pinctrl | |
| parent | 6cd853a45324e26d71d7848b7f0fe28b5c023375 (diff) | |
| download | linux-7f25d5b04af2ec0b85a18071ab59f9a6e456dfe0.tar.xz | |
pinctrl: renesas: r8a77990: Add support for AVB power-source
Add support for configuring the I/O voltage level of the Ethernet AVB
pins on the R-Car E3 SoC. "PIN_VDDQ_AVB0" can be configured for 2.5V or
3.3V operation.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/57883cd2d94c7919dc0f0db07cf6169ca89538e6.1678271030.git.geert+renesas@glider.be
Diffstat (limited to 'drivers/pinctrl')
| -rw-r--r-- | drivers/pinctrl/renesas/pfc-r8a77990.c | 29 |
1 files changed, 19 insertions, 10 deletions
diff --git a/drivers/pinctrl/renesas/pfc-r8a77990.c b/drivers/pinctrl/renesas/pfc-r8a77990.c index 57de0580a440..229ad12bc9b7 100644 --- a/drivers/pinctrl/renesas/pfc-r8a77990.c +++ b/drivers/pinctrl/renesas/pfc-r8a77990.c @@ -56,7 +56,8 @@ PIN_NOGP_CFG(TCK, "TCK", fn, SH_PFC_PIN_CFG_PULL_UP), \ PIN_NOGP_CFG(TDI, "TDI", fn, SH_PFC_PIN_CFG_PULL_UP), \ PIN_NOGP_CFG(TMS, "TMS", fn, SH_PFC_PIN_CFG_PULL_UP), \ - PIN_NOGP_CFG(TRST_N, "TRST_N", fn, SH_PFC_PIN_CFG_PULL_UP) + PIN_NOGP_CFG(TRST_N, "TRST_N", fn, SH_PFC_PIN_CFG_PULL_UP), \ + PIN_NOGP_CFG(VDDQ_AVB0, "VDDQ_AVB0", fn, SH_PFC_PIN_CFG_IO_VOLTAGE_25_33) /* * F_() : just information @@ -507,7 +508,8 @@ MOD_SEL0_1_0 FM(AVB_TD3) \ FM(PRESETOUT_N) FM(FSCLKST_N) FM(TRST_N) FM(TCK) FM(TMS) FM(TDI) \ FM(ASEBRK) \ - FM(MLB_REF) + FM(MLB_REF) \ + FM(VDDQ_AVB0) enum { PINMUX_RESERVED = 0, @@ -5040,28 +5042,35 @@ static const struct pinmux_drive_reg pinmux_drive_regs[] = { enum ioctrl_regs { POCCTRL0, + POCCTRL2, TDSELCTRL, }; static const struct pinmux_ioctrl_reg pinmux_ioctrl_regs[] = { [POCCTRL0] = { 0xe6060380, }, + [POCCTRL2] = { 0xe6060388, }, [TDSELCTRL] = { 0xe60603c0, }, { /* sentinel */ }, }; static int r8a77990_pin_to_pocctrl(unsigned int pin, u32 *pocctrl) { - int bit = -EINVAL; + switch (pin) { + case RCAR_GP_PIN(3, 0) ... RCAR_GP_PIN(3, 11): + *pocctrl = pinmux_ioctrl_regs[POCCTRL0].reg; + return pin & 0x1f; - *pocctrl = pinmux_ioctrl_regs[POCCTRL0].reg; + case RCAR_GP_PIN(4, 0) ... RCAR_GP_PIN(4, 10): + *pocctrl = pinmux_ioctrl_regs[POCCTRL0].reg; + return (pin & 0x1f) + 19; - if (pin >= RCAR_GP_PIN(3, 0) && pin <= RCAR_GP_PIN(3, 11)) - bit = pin & 0x1f; + case PIN_VDDQ_AVB0: + *pocctrl = pinmux_ioctrl_regs[POCCTRL2].reg; + return 0; - if (pin >= RCAR_GP_PIN(4, 0) && pin <= RCAR_GP_PIN(4, 10)) - bit = (pin & 0x1f) + 19; - - return bit; + default: + return -EINVAL; + } } static const struct pinmux_bias_reg pinmux_bias_regs[] = { |