| Message ID | 1507740143-12732-1-git-send-email-fb@ltec.ch |
|---|---|
| State | Accepted |
| Commit | c07bf9bea7781f282944508573e38b18ec50062d |
| Delegated to: | Tom Rini |
| Headers | show |
| Series | [U-Boot] am33xx: Add a function to query MPU voltage in uV | expand |
On Wednesday 11 October 2017 10:12 PM, Felix Brack wrote: > For the DM TPS65910 driver I'm working on, querying the MPU voltage > should return a value in uV. This value can then be used by the > regulator's standard function set_value to set the MPU voltage. > > Signed-off-by: Felix Brack <fb@ltec.ch> Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com> Thanks and regards, Lokesh > --- > > arch/arm/include/asm/arch-am33xx/sys_proto.h | 1 + > arch/arm/mach-omap2/am33xx/sys_info.c | 16 ++++++++++++++++ > 2 files changed, 17 insertions(+) > > diff --git a/arch/arm/include/asm/arch-am33xx/sys_proto.h b/arch/arm/include/asm/arch-am33xx/sys_proto.h > index 4e78aaf..57fbfa4 100644 > --- a/arch/arm/include/asm/arch-am33xx/sys_proto.h > +++ b/arch/arm/include/asm/arch-am33xx/sys_proto.h > @@ -40,6 +40,7 @@ void enable_norboot_pin_mux(void); > #endif > void am33xx_spl_board_init(void); > int am335x_get_efuse_mpu_max_freq(struct ctrl_dev *cdev); > +int am335x_get_mpu_vdd(int sil_rev, int frequency); > int am335x_get_tps65910_mpu_vdd(int sil_rev, int frequency); > #endif > > diff --git a/arch/arm/mach-omap2/am33xx/sys_info.c b/arch/arm/mach-omap2/am33xx/sys_info.c > index ea434aa..0181a8c 100644 > --- a/arch/arm/mach-omap2/am33xx/sys_info.c > +++ b/arch/arm/mach-omap2/am33xx/sys_info.c > @@ -175,6 +175,22 @@ int am335x_get_efuse_mpu_max_freq(struct ctrl_dev *cdev) > return MPUPLL_M_720; > } > > +int am335x_get_mpu_vdd(int sil_rev, int frequency) > +{ > + int sel_mask = am335x_get_tps65910_mpu_vdd(sil_rev, frequency); > + > + switch (sel_mask) { > + case TPS65910_OP_REG_SEL_1_3_2_5: > + return 1325000; > + case TPS65910_OP_REG_SEL_1_2_0: > + return 1200000; > + case TPS65910_OP_REG_SEL_1_1_0: > + return 1100000; > + default: > + return 1262500; > + } > +} > + > int am335x_get_tps65910_mpu_vdd(int sil_rev, int frequency) > { > /* For PG2.0 and later, we have one set of values. */ >
On Wed, Oct 11, 2017 at 06:42:23PM +0200, Felix Brack wrote: > For the DM TPS65910 driver I'm working on, querying the MPU voltage > should return a value in uV. This value can then be used by the > regulator's standard function set_value to set the MPU voltage. > > Signed-off-by: Felix Brack <fb@ltec.ch> > Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com> Applied to u-boot/master, thanks!
diff --git a/arch/arm/include/asm/arch-am33xx/sys_proto.h b/arch/arm/include/asm/arch-am33xx/sys_proto.h index 4e78aaf..57fbfa4 100644 --- a/arch/arm/include/asm/arch-am33xx/sys_proto.h +++ b/arch/arm/include/asm/arch-am33xx/sys_proto.h @@ -40,6 +40,7 @@ void enable_norboot_pin_mux(void); #endif void am33xx_spl_board_init(void); int am335x_get_efuse_mpu_max_freq(struct ctrl_dev *cdev); +int am335x_get_mpu_vdd(int sil_rev, int frequency); int am335x_get_tps65910_mpu_vdd(int sil_rev, int frequency); #endif diff --git a/arch/arm/mach-omap2/am33xx/sys_info.c b/arch/arm/mach-omap2/am33xx/sys_info.c index ea434aa..0181a8c 100644 --- a/arch/arm/mach-omap2/am33xx/sys_info.c +++ b/arch/arm/mach-omap2/am33xx/sys_info.c @@ -175,6 +175,22 @@ int am335x_get_efuse_mpu_max_freq(struct ctrl_dev *cdev) return MPUPLL_M_720; } +int am335x_get_mpu_vdd(int sil_rev, int frequency) +{ + int sel_mask = am335x_get_tps65910_mpu_vdd(sil_rev, frequency); + + switch (sel_mask) { + case TPS65910_OP_REG_SEL_1_3_2_5: + return 1325000; + case TPS65910_OP_REG_SEL_1_2_0: + return 1200000; + case TPS65910_OP_REG_SEL_1_1_0: + return 1100000; + default: + return 1262500; + } +} + int am335x_get_tps65910_mpu_vdd(int sil_rev, int frequency) { /* For PG2.0 and later, we have one set of values. */
For the DM TPS65910 driver I'm working on, querying the MPU voltage should return a value in uV. This value can then be used by the regulator's standard function set_value to set the MPU voltage. Signed-off-by: Felix Brack <fb@ltec.ch> --- arch/arm/include/asm/arch-am33xx/sys_proto.h | 1 + arch/arm/mach-omap2/am33xx/sys_info.c | 16 ++++++++++++++++ 2 files changed, 17 insertions(+)