omap hardware.

omap_4430sdp_map_io --> omap44xx_map_common_io --> _omap2_map_common_io -->omap2_check_revision

omap4_check_revision();
omap_chip.oc |= CHIP_IS_OMAP4430ES2_3;

我们系统用的芯片是”OMAP4430 ES2.3 type(GP)“

omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP44XX)

1） int omap_hwmod_init(struct omap_hwmod **ohs)

/**
 * omap_hwmod_init - init omap_hwmod code and register hwmods
 * @ohs: pointer to an array of omap_hwmods to register
 *
 * Intended to be called early in boot before the clock framework is
 * initialized.  If @ohs is not null, will register all omap_hwmods
 * listed in @ohs that are valid for this chip.  Returns -EINVAL if
 * omap_hwmod_init() has already been called or 0 otherwise.
 */
int omap_hwmod_init(struct omap_hwmod **ohs)
{
    struct omap_hwmod *oh;
    int r;

    if (inited)
        return -EINVAL;

    inited = 1;

    if (!ohs)
        return 0;

    oh = *ohs;
    while (oh) {
        if (omap_chip_is(oh->omap_chip)) {
            r = omap_hwmod_register(oh);
            WARN(r, "omap_hwmod: %s: omap_hwmod_register returned "
                 "%d\n", oh->name, r);
        }
        oh = *++ohs;
    }

    return 0;
}