SRTC_LPCR
u32 lp_cr = readl(pdata->ioaddr + SRTC_LPCR);
writel(lp_cr, pdata->ioaddr + SRTC_LPCR);
writel((SRTC_LPCR_IE | SRTC_LPCR_NSA), ioaddr + SRTC_LPCR);
SRTC_LPCR_EN_LP), ioaddr + SRTC_LPCR);
lp_cr = readl(ioaddr + SRTC_LPCR);
writel(lp_cr, ioaddr + SRTC_LPCR);