Linux 5.0, commit 1c163f4c7b3f621efff9b28a47abb36f7378d783, has a TDSEL fix for R8A7790 H2 and R8A7794 E2 SoCs, implement similar fix for U-Boot. The difference here is that the SoC ES matching has to be implemented manually.
Signed-off-by: Marek Vasut marek.vasut+renesas@gmail.com Cc: Nobuhiro Iwamatsu iwamatsu@nigauri.org --- drivers/pinctrl/renesas/pfc-r8a7790.c | 11 +++++++++++ drivers/pinctrl/renesas/pfc-r8a7794.c | 11 +++++++++++ 2 files changed, 22 insertions(+)
diff --git a/drivers/pinctrl/renesas/pfc-r8a7790.c b/drivers/pinctrl/renesas/pfc-r8a7790.c index ad492b5366..ef23ca278a 100644 --- a/drivers/pinctrl/renesas/pfc-r8a7790.c +++ b/drivers/pinctrl/renesas/pfc-r8a7790.c @@ -5694,7 +5694,18 @@ static int r8a7790_pin_to_pocctrl(struct sh_pfc *pfc, unsigned int pin, u32 *poc return 31 - (pin & 0x1f); }
+static int r8a7790_pinmux_soc_init(struct sh_pfc *pfc) +{ + /* Initialize TDSEL on old revisions */ + if ((rmobile_get_cpu_rev_integer() == 1) && + (rmobile_get_cpu_rev_fraction() == 0)) + sh_pfc_write(pfc, 0xe6060088, 0x00155554); + + return 0; +} + static const struct sh_pfc_soc_operations r8a7790_pinmux_ops = { + .init = r8a7790_pinmux_soc_init, .pin_to_pocctrl = r8a7790_pin_to_pocctrl, };
diff --git a/drivers/pinctrl/renesas/pfc-r8a7794.c b/drivers/pinctrl/renesas/pfc-r8a7794.c index 7264c70e85..079f4438ef 100644 --- a/drivers/pinctrl/renesas/pfc-r8a7794.c +++ b/drivers/pinctrl/renesas/pfc-r8a7794.c @@ -5563,7 +5563,18 @@ static int r8a7794_pin_to_pocctrl(struct sh_pfc *pfc, unsigned int pin, u32 *poc return -EINVAL; }
+static int r8a7794_pinmux_soc_init(struct sh_pfc *pfc) +{ + /* Initialize TDSEL on old revisions */ + if ((rmobile_get_cpu_rev_integer() == 1) && + (rmobile_get_cpu_rev_fraction() == 0)) + sh_pfc_write(pfc, 0xe6060068, 0x55555500); + + return 0; +} + static const struct sh_pfc_soc_operations r8a7794_pinmux_ops = { + .init = r8a7794_pinmux_soc_init, .pin_to_pocctrl = r8a7794_pin_to_pocctrl, };