On Tue, May 28, 2013 at 01:51:39PM +0200, Jan Weitzel wrote:
> For OMAP4460 omap4_scale_vcores must set the voltage according to mpu freq.
>
> OPP100 700MHz 1210mV
> OPPTB 920MHz 1320mV
> OPPNT 1200MHz 1380mV
>
> Signed-off-by: Jan Weitzel <j.weit...@phytec.de>
> ---
> arch/arm/boards/archosg9/lowlevel.c | 2 +-
> arch/arm/boards/panda/lowlevel.c | 2 +-
> arch/arm/boards/pcm049/lowlevel.c | 2 +-
> arch/arm/boards/phycard-a-xl2/lowlevel.c | 2 +-
> arch/arm/mach-omap/include/mach/omap4-silicon.h | 2 +-
> arch/arm/mach-omap/omap4_generic.c | 6 +++---
> 6 files changed, 8 insertions(+), 8 deletions(-)
>
> diff --git a/arch/arm/boards/archosg9/lowlevel.c
> b/arch/arm/boards/archosg9/lowlevel.c
> index 0334693..0fae6da 100644
> --- a/arch/arm/boards/archosg9/lowlevel.c
> +++ b/arch/arm/boards/archosg9/lowlevel.c
> @@ -49,7 +49,7 @@ static noinline void archosg9_init_lowlevel(void)
> set_muxconf_regs();
>
> /* Set VCORE1 = 1.3 V, VCORE2 = VCORE3 = 1.21V */
> - omap4_scale_vcores(TPS62361_VSEL0_GPIO);
> + omap4_scale_vcores(TPS62361_VSEL0_GPIO, 1380);
>
> /* Enable all clocks */
> omap4_enable_all_clocks();
> diff --git a/arch/arm/boards/panda/lowlevel.c
> b/arch/arm/boards/panda/lowlevel.c
> index ed1dc6f..591ff2f 100644
> --- a/arch/arm/boards/panda/lowlevel.c
> +++ b/arch/arm/boards/panda/lowlevel.c
> @@ -70,7 +70,7 @@ static void noinline panda_init_lowlevel(void)
> omap4_ddr_init(&ddr_regs_400_mhz_2cs, &core);
>
> /* Set VCORE1 = 1.3 V, VCORE2 = VCORE3 = 1.21V */
> - omap4_scale_vcores(TPS62361_VSEL0_GPIO);
> + omap4_scale_vcores(TPS62361_VSEL0_GPIO, 1210);
> }
>
> void barebox_arm_reset_vector(void)
> diff --git a/arch/arm/boards/pcm049/lowlevel.c
> b/arch/arm/boards/pcm049/lowlevel.c
> index 33519f7..8548868 100644
> --- a/arch/arm/boards/pcm049/lowlevel.c
> +++ b/arch/arm/boards/pcm049/lowlevel.c
> @@ -109,7 +109,7 @@ static void noinline pcm049_init_lowlevel(void)
> #endif
>
> /* Set VCORE1 = 1.3 V, VCORE2 = VCORE3 = 1.21V */
> - omap4_scale_vcores(TPS62361_VSEL0_GPIO);
> + omap4_scale_vcores(TPS62361_VSEL0_GPIO, 1320);
>
> writel(CM_SYS_CLKSEL_19M2, CM_SYS_CLKSEL);
>
> diff --git a/arch/arm/boards/phycard-a-xl2/lowlevel.c
> b/arch/arm/boards/phycard-a-xl2/lowlevel.c
> index 07505ff..3750bae 100644
> --- a/arch/arm/boards/phycard-a-xl2/lowlevel.c
> +++ b/arch/arm/boards/phycard-a-xl2/lowlevel.c
> @@ -58,7 +58,7 @@ static noinline void pcaaxl2_init_lowlevel(void)
> omap4_ddr_init(&ddr_regs_mt42L64M64_25_400_mhz, &core);
>
> /* Set VCORE1 = 1.3 V, VCORE2 = VCORE3 = 1.21V */
> - omap4_scale_vcores(TPS62361_VSEL0_GPIO);
> + omap4_scale_vcores(TPS62361_VSEL0_GPIO, 1320);
>
> writel(CM_SYS_CLKSEL_19M2, CM_SYS_CLKSEL);
>
> diff --git a/arch/arm/mach-omap/include/mach/omap4-silicon.h
> b/arch/arm/mach-omap/include/mach/omap4-silicon.h
> index 9e82435..5684a38 100644
> --- a/arch/arm/mach-omap/include/mach/omap4-silicon.h
> +++ b/arch/arm/mach-omap/include/mach/omap4-silicon.h
> @@ -211,7 +211,7 @@ struct dpll_param;
> void omap4_ddr_init(const struct ddr_regs *, const struct dpll_param *);
> void omap4_power_i2c_send(u32);
> unsigned int omap4_revision(void);
> -noinline int omap4_scale_vcores(unsigned vsel0_pin);
> +noinline int omap4_scale_vcores(unsigned vsel0_pin, unsigned volt_mv);
>
> #endif
>
> diff --git a/arch/arm/mach-omap/omap4_generic.c
> b/arch/arm/mach-omap/omap4_generic.c
> index 38993be..1eeaf30 100644
> --- a/arch/arm/mach-omap/omap4_generic.c
> +++ b/arch/arm/mach-omap/omap4_generic.c
> @@ -511,7 +511,7 @@ static void __iomem *omap4_get_gpio_base(unsigned gpio)
>
> #define I2C_SLAVE 0x12
>
> -noinline int omap4_scale_vcores(unsigned vsel0_pin)
> +noinline int omap4_scale_vcores(unsigned vsel0_pin, unsigned volt_mv)
> {
> void __iomem *base;
> unsigned int rev = omap4_revision();
> @@ -529,8 +529,8 @@ noinline int omap4_scale_vcores(unsigned vsel0_pin)
> * Setup SET1 and SET0 with right values so that kernel
> * can use either of them based on its needs.
> */
> - omap4_do_scale_tps62361(TPS62361_REG_ADDR_SET0, 1430);
> - omap4_do_scale_tps62361(TPS62361_REG_ADDR_SET1, 1430);
> + omap4_do_scale_tps62361(TPS62361_REG_ADDR_SET0, volt_mv);
> + omap4_do_scale_tps62361(TPS62361_REG_ADDR_SET1, volt_mv);
This adds a parameter volt_mv which is written to some register, but
only on a omap4460.
This is all very nonobvious to me. I wonder if this setup could be
improved somehow to leave a better feeling? How about separating
omap4430 and omap4460 setup? Then maybe omap4430 wouldn't have to pass
a meaningles parameter to this function.
Sascha
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