buf_in = map_sysmem(CONFIG_PRE_CON_BUF_ADDR, CONFIG_PRE_CON_BUF_SZ);
if (gd->precon_buf_idx > CONFIG_PRE_CON_BUF_SZ)
in = gd->precon_buf_idx - CONFIG_PRE_CON_BUF_SZ;
buf_in = map_sysmem(CONFIG_PRE_CON_BUF_ADDR, CONFIG_PRE_CON_BUF_SZ);
if (gd->precon_buf_idx > CONFIG_PRE_CON_BUF_SZ)
in = gd->precon_buf_idx - CONFIG_PRE_CON_BUF_SZ;