diff options
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/mach-omap2/prm2xxx.c | 88 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/prm2xxx_3xxx.c | 22 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/prm3xxx.c | 28 |
3 files changed, 110 insertions, 28 deletions
diff --git a/arch/arm/mach-omap2/prm2xxx.c b/arch/arm/mach-omap2/prm2xxx.c index faeab18..00cd4fc 100644 --- a/arch/arm/mach-omap2/prm2xxx.c +++ b/arch/arm/mach-omap2/prm2xxx.c @@ -29,6 +29,14 @@ #include "prm-regbits-24xx.h" /* + * OMAP24xx PM_PWSTCTRL_*.POWERSTATE and PM_PWSTST_*.LASTSTATEENTERED bits - + * these are reversed from the bits used on OMAP3+ + */ +#define OMAP24XX_PWRDM_POWER_ON 0x0 +#define OMAP24XX_PWRDM_POWER_RET 0x1 +#define OMAP24XX_PWRDM_POWER_OFF 0x3 + +/* * omap2xxx_prm_reset_src_map - map from bits in the PRM_RSTST_WKUP * hardware register (which are specific to the OMAP2xxx SoCs) to * reset source ID bit shifts (which is an OMAP SoC-independent @@ -69,6 +77,34 @@ static u32 omap2xxx_prm_read_reset_sources(void) } /** + * omap2xxx_pwrst_to_common_pwrst - convert OMAP2xxx pwrst to common pwrst + * @omap2xxx_pwrst: OMAP2xxx hardware power state to convert + * + * Return the common power state bits corresponding to the OMAP2xxx + * hardware power state bits @omap2xxx_pwrst, or -EINVAL upon error. + */ +static int omap2xxx_pwrst_to_common_pwrst(u8 omap2xxx_pwrst) +{ + u8 pwrst; + + switch (omap2xxx_pwrst) { + case OMAP24XX_PWRDM_POWER_OFF: + pwrst = PWRDM_POWER_OFF; + break; + case OMAP24XX_PWRDM_POWER_RET: + pwrst = PWRDM_POWER_RET; + break; + case OMAP24XX_PWRDM_POWER_ON: + pwrst = PWRDM_POWER_ON; + break; + default: + return -EINVAL; + } + + return pwrst; +} + +/** * omap2xxx_prm_dpll_reset - use DPLL reset to reboot the OMAP SoC * * Set the DPLL reset bit, which should reboot the SoC. This is the @@ -98,10 +134,56 @@ int omap2xxx_clkdm_wakeup(struct clockdomain *clkdm) return 0; } +static int omap2xxx_pwrdm_set_next_pwrst(struct powerdomain *pwrdm, u8 pwrst) +{ + u8 omap24xx_pwrst; + + switch (pwrst) { + case PWRDM_POWER_OFF: + omap24xx_pwrst = OMAP24XX_PWRDM_POWER_OFF; + break; + case PWRDM_POWER_RET: + omap24xx_pwrst = OMAP24XX_PWRDM_POWER_RET; + break; + case PWRDM_POWER_ON: + omap24xx_pwrst = OMAP24XX_PWRDM_POWER_ON; + break; + default: + return -EINVAL; + } + + omap2_prm_rmw_mod_reg_bits(OMAP_POWERSTATE_MASK, + (omap24xx_pwrst << OMAP_POWERSTATE_SHIFT), + pwrdm->prcm_offs, OMAP2_PM_PWSTCTRL); + return 0; +} + +static int omap2xxx_pwrdm_read_next_pwrst(struct powerdomain *pwrdm) +{ + u8 omap2xxx_pwrst; + + omap2xxx_pwrst = omap2_prm_read_mod_bits_shift(pwrdm->prcm_offs, + OMAP2_PM_PWSTCTRL, + OMAP_POWERSTATE_MASK); + + return omap2xxx_pwrst_to_common_pwrst(omap2xxx_pwrst); +} + +static int omap2xxx_pwrdm_read_pwrst(struct powerdomain *pwrdm) +{ + u8 omap2xxx_pwrst; + + omap2xxx_pwrst = omap2_prm_read_mod_bits_shift(pwrdm->prcm_offs, + OMAP2_PM_PWSTST, + OMAP_POWERSTATEST_MASK); + + return omap2xxx_pwrst_to_common_pwrst(omap2xxx_pwrst); +} + struct pwrdm_ops omap2_pwrdm_operations = { - .pwrdm_set_next_pwrst = omap2_pwrdm_set_next_pwrst, - .pwrdm_read_next_pwrst = omap2_pwrdm_read_next_pwrst, - .pwrdm_read_pwrst = omap2_pwrdm_read_pwrst, + .pwrdm_set_next_pwrst = omap2xxx_pwrdm_set_next_pwrst, + .pwrdm_read_next_pwrst = omap2xxx_pwrdm_read_next_pwrst, + .pwrdm_read_pwrst = omap2xxx_pwrdm_read_pwrst, .pwrdm_set_logic_retst = omap2_pwrdm_set_logic_retst, .pwrdm_set_mem_onst = omap2_pwrdm_set_mem_onst, .pwrdm_set_mem_retst = omap2_pwrdm_set_mem_retst, diff --git a/arch/arm/mach-omap2/prm2xxx_3xxx.c b/arch/arm/mach-omap2/prm2xxx_3xxx.c index 30517f5..a3e121f 100644 --- a/arch/arm/mach-omap2/prm2xxx_3xxx.c +++ b/arch/arm/mach-omap2/prm2xxx_3xxx.c @@ -103,28 +103,6 @@ int omap2_prm_deassert_hardreset(s16 prm_mod, u8 rst_shift, u8 st_shift) /* Powerdomain low-level functions */ /* Common functions across OMAP2 and OMAP3 */ -int omap2_pwrdm_set_next_pwrst(struct powerdomain *pwrdm, u8 pwrst) -{ - omap2_prm_rmw_mod_reg_bits(OMAP_POWERSTATE_MASK, - (pwrst << OMAP_POWERSTATE_SHIFT), - pwrdm->prcm_offs, OMAP2_PM_PWSTCTRL); - return 0; -} - -int omap2_pwrdm_read_next_pwrst(struct powerdomain *pwrdm) -{ - return omap2_prm_read_mod_bits_shift(pwrdm->prcm_offs, - OMAP2_PM_PWSTCTRL, - OMAP_POWERSTATE_MASK); -} - -int omap2_pwrdm_read_pwrst(struct powerdomain *pwrdm) -{ - return omap2_prm_read_mod_bits_shift(pwrdm->prcm_offs, - OMAP2_PM_PWSTST, - OMAP_POWERSTATEST_MASK); -} - int omap2_pwrdm_set_mem_onst(struct powerdomain *pwrdm, u8 bank, u8 pwrst) { diff --git a/arch/arm/mach-omap2/prm3xxx.c b/arch/arm/mach-omap2/prm3xxx.c index db198d0..4d43474 100644 --- a/arch/arm/mach-omap2/prm3xxx.c +++ b/arch/arm/mach-omap2/prm3xxx.c @@ -278,6 +278,28 @@ static u32 omap3xxx_prm_read_reset_sources(void) /* Powerdomain low-level functions */ +static int omap3_pwrdm_set_next_pwrst(struct powerdomain *pwrdm, u8 pwrst) +{ + omap2_prm_rmw_mod_reg_bits(OMAP_POWERSTATE_MASK, + (pwrst << OMAP_POWERSTATE_SHIFT), + pwrdm->prcm_offs, OMAP2_PM_PWSTCTRL); + return 0; +} + +static int omap3_pwrdm_read_next_pwrst(struct powerdomain *pwrdm) +{ + return omap2_prm_read_mod_bits_shift(pwrdm->prcm_offs, + OMAP2_PM_PWSTCTRL, + OMAP_POWERSTATE_MASK); +} + +static int omap3_pwrdm_read_pwrst(struct powerdomain *pwrdm) +{ + return omap2_prm_read_mod_bits_shift(pwrdm->prcm_offs, + OMAP2_PM_PWSTST, + OMAP_POWERSTATEST_MASK); +} + /* Applicable only for OMAP3. Not supported on OMAP2 */ static int omap3_pwrdm_read_prev_pwrst(struct powerdomain *pwrdm) { @@ -356,9 +378,9 @@ static int omap3_pwrdm_disable_hdwr_sar(struct powerdomain *pwrdm) } struct pwrdm_ops omap3_pwrdm_operations = { - .pwrdm_set_next_pwrst = omap2_pwrdm_set_next_pwrst, - .pwrdm_read_next_pwrst = omap2_pwrdm_read_next_pwrst, - .pwrdm_read_pwrst = omap2_pwrdm_read_pwrst, + .pwrdm_set_next_pwrst = omap3_pwrdm_set_next_pwrst, + .pwrdm_read_next_pwrst = omap3_pwrdm_read_next_pwrst, + .pwrdm_read_pwrst = omap3_pwrdm_read_pwrst, .pwrdm_read_prev_pwrst = omap3_pwrdm_read_prev_pwrst, .pwrdm_set_logic_retst = omap2_pwrdm_set_logic_retst, .pwrdm_read_logic_pwrst = omap3_pwrdm_read_logic_pwrst, |
