154a17cb1STang Yun ping1. modify "ddrbin_param.txt", choose ddr frequency, uart info. 254a17cb1STang Yun ping2. run "ddrbin_tool" with argument 1: ddrbin_param.txt, argument 2: ddr bin file. 354a17cb1STang Yun ping like: ./ddrbin_tool ddrbin_param.txt px30_ddr_333MHz_v1.13.bin 454a17cb1STang Yun ping 554a17cb1STang Yun pingsupport following chip: 654a17cb1STang Yun pingPX30：ddr bin version should be released later than V1.11. Support modify uart info only. 754a17cb1STang Yun pingRK1808: ddr bin version should be released later than V1.03. Support modify uart info and ddr frequency. ddr freq should be one of 333,400,533,666,786,933. 854a17cb1STang Yun pingRK322x: ddr bin version should be released later than V1.08. Support modify uart info and ddr frequency. These is no limit to ddr frequency. 954a17cb1STang Yun pingRK322xh: ddr bin version should be released later than V1.14. Support modify uart info only. 1054a17cb1STang Yun pingRK3288: ddr bin version should be released later than V1.07. Support modify uart info only. 1154a17cb1STang Yun pingRK3308: ddr bin version should be released later than V1.28. Support modify uart info and ddr frequency. ddr freq should be one of 225,294,393,451,589. 1254a17cb1STang Yun pingRK3326：ddr bin version should be released later than V1.11. Support modify uart info only. 1354a17cb1STang Yun pingRK3368: ddr bin version should be released later than V2.04. Support modify uart info and ddr frequency. These is no limit to ddr frequency. 1454a17cb1STang Yun pingRK3328: ddr bin version should be released later than V1.14. Support modify uart info only. 1554a17cb1STang Yun pingRK3399: ddr bin version should be released later than V1.20. Support modify uart info only. 1654a17cb1STang Yun pingRK3399PRO NPU: ddr bin version should be released later than V1.03. Support modify uart info and ddr frequency. ddr freq should be one of 333,400,533,666,786,933. 1754a17cb1STang Yun ping 1854a17cb1STang Yun pingddrbin_param.txt: 1954a17cb1STang Yun pingstart tag: keep default value. Do not modify it. 2054a17cb1STang Yun pingddr2_freq： ddr2 frequency, unit:MHz. 2154a17cb1STang Yun pinglp2_freq：lpddr2 frequency, unit:MHz. 2254a17cb1STang Yun pingddr3_freq：ddr3 frequency, unit:MHz. 2354a17cb1STang Yun pinglp3_freq：lpddr3 frequency, unit:MHz. 2454a17cb1STang Yun pingddr4_freq：ddr4 frequency, unit:MHz. 2554a17cb1STang Yun pinglp4_freq：lpddr4 frequency, unit:MHz. 2654a17cb1STang Yun ping 27*558a25b2STang Yun pingIf ddr*_freq/lp*_freq is set to 0, it's frequency will keep the same with the ddr bin frequency. 28*558a25b2STang Yun ping 2954a17cb1STang Yun pinguart id：uart number. 0 for uart0, 1 for uart1, 2 for uart2..., 0xf will disable uart. 30*558a25b2STang Yun pinguart iomux：uart iomux info, 0 for uartn_m0, 1 for uartn_m1, 2 for uartn_m2...(like uart2_m0, uart2_m1,uart2_m2), 31*558a25b2STang Yun pingOr 1 for uartn_a, 2 for uartn_b, 3 for uartn_c.(like uar2a, uart2b, uart2c). 3254a17cb1STang Yun pinguart baudrate：uart baudrate should be 115200 or 1500000. 33*558a25b2STang Yun ping 34*558a25b2STang Yun pingIf both of uart id, uart iomux and uart baudrate are set to 0, uart info will keep the same with ddr bin config. 35