HSP_SHRD_MBOX_TYPE1_DATA1
tegra_hsp_channel_writel(channel, value[1], HSP_SHRD_MBOX_TYPE1_DATA1);
value[1] = tegra_hsp_channel_readl(channel, HSP_SHRD_MBOX_TYPE1_DATA1);
tegra_hsp_channel_writel(channel, 0x0, HSP_SHRD_MBOX_TYPE1_DATA1);