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| author | Tero Kristo <t-kristo@ti.com> | 2014-03-04 17:17:06 +0200 |
|---|---|---|
| committer | Tero Kristo <t-kristo@ti.com> | 2014-07-04 17:02:18 +0300 |
| commit | bbd36f9f03eceee5c208db83049142171e6338f6 (patch) | |
| tree | 16a6d579e4938078996158b172f059ea40572389 /arch/arm/mach-omap2/control.c | |
| parent | c5180a2b3e26d9b82277986f830c89a50103e65a (diff) | |
| download | lwn-bbd36f9f03eceee5c208db83049142171e6338f6.tar.gz lwn-bbd36f9f03eceee5c208db83049142171e6338f6.zip | |
ARM: OMAP3: control: add API for setting up the modem pads
This patch moves the functionality from PM core to control driver.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Diffstat (limited to 'arch/arm/mach-omap2/control.c')
| -rw-r--r-- | arch/arm/mach-omap2/control.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/control.c b/arch/arm/mach-omap2/control.c index 83080949d0d3..f432ffc0deb2 100644 --- a/arch/arm/mach-omap2/control.c +++ b/arch/arm/mach-omap2/control.c @@ -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 */ |