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ARM: OMAP3: control: add API for setting up the modem pads

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This patch moves the functionality from PM core to control driver.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
This commit is contained in:
Tero Kristo 2014-03-04 17:17:06 +02:00
parent c5180a2b3e
commit bbd36f9f03
3 changed files with 28 additions and 14 deletions
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26
arch/arm/mach-omap2/control.c
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@ -569,4 +569,30 @@ void omap3_ctrl_set_iva_bootmode_idle(void)
omap_ctrl_writel(OMAP3_IVA2_BOOTMOD_IDLE,
OMAP343X_CONTROL_IVA2_BOOTMOD);
}
/**
* omap3_ctrl_setup_d2d_padconf - setup stacked modem pads for idle
*
* Sets up the pads controlling the stacked modem in such way that the
* device can enter idle.
*/
void omap3_ctrl_setup_d2d_padconf(void)
{
u16 mask, padconf;
/*
* In a stand alone OMAP3430 where there is not a stacked
* modem for the D2D Idle Ack and D2D MStandby must be pulled
* high. S CONTROL_PADCONF_SAD2D_IDLEACK and
* CONTROL_PADCONF_SAD2D_MSTDBY to have a pull up.
*/
mask = (1 << 4) | (1 << 3); /* pull-up, enabled */
padconf = omap_ctrl_readw(OMAP3_PADCONF_SAD2D_MSTANDBY);
padconf |= mask;
omap_ctrl_writew(padconf, OMAP3_PADCONF_SAD2D_MSTANDBY);
padconf = omap_ctrl_readw(OMAP3_PADCONF_SAD2D_IDLEACK);
padconf |= mask;
omap_ctrl_writew(padconf, OMAP3_PADCONF_SAD2D_IDLEACK);
}
#endif /* CONFIG_ARCH_OMAP3 && CONFIG_PM */

1
arch/arm/mach-omap2/control.h
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@ -428,6 +428,7 @@ extern void omap_ctrl_write_dsp_boot_mode(u8 bootmode);
extern void omap3630_ctrl_disable_rta(void);
extern int omap3_ctrl_save_padconf(void);
extern void omap3_ctrl_set_iva_bootmode_idle(void);
void omap3_ctrl_setup_d2d_padconf(void);
extern void omap2_set_globals_control(void __iomem *ctrl,
void __iomem *ctrl_pad);
#else

15
arch/arm/mach-omap2/pm34xx.c
View File

@ -355,20 +355,7 @@ static int omap3_pm_suspend(void)
static void __init omap3_d2d_idle(void)
{
u16 mask, padconf;
/* In a stand alone OMAP3430 where there is not a stacked
* modem for the D2D Idle Ack and D2D MStandby must be pulled
* high. S CONTROL_PADCONF_SAD2D_IDLEACK and
* CONTROL_PADCONF_SAD2D_MSTDBY to have a pull up. */
mask = (1 << 4) | (1 << 3); /* pull-up, enabled */
padconf = omap_ctrl_readw(OMAP3_PADCONF_SAD2D_MSTANDBY);
padconf |= mask;
omap_ctrl_writew(padconf, OMAP3_PADCONF_SAD2D_MSTANDBY);
padconf = omap_ctrl_readw(OMAP3_PADCONF_SAD2D_IDLEACK);
padconf |= mask;
omap_ctrl_writew(padconf, OMAP3_PADCONF_SAD2D_IDLEACK);
omap3_ctrl_setup_d2d_padconf();
/* reset modem */
omap3_prm_reset_modem();