1 /* 2 * Copyright 2017 Theobroma Systems Design und Consulting GmbH 3 * 4 * SPDX-License-Identifier: GPL-2.0+ 5 */ 6 7 /* 8 * Execution starts on the instruction following this 4-byte header 9 * (containing the magic 'RK33'). 10 * 11 * To make life easier for everyone, we build the SPL binary with 12 * space for this 4-byte header already included in the binary. 13 */ 14 15 #ifdef CONFIG_SPL_BUILD 16 /* 17 * We need to add 4 bytes of space for the 'RK33' at the 18 * beginning of the executable. However, as we want to keep 19 * this generic and make it applicable to builds that are like 20 * the RK3368 (TPL needs this, SPL doesn't) or the RK3399 (no 21 * TPL, but extra space needed in the SPL), we simply repeat 22 * the 'b reset' with the expectation that the first one will 23 * be overwritten, if this is the first stage contained in the 24 * final image created with mkimage)... 25 */ 26 b reset /* may be overwritten --- should be 'nop' or a 'b reset' */ 27 #endif 28 b reset 29 30 #if defined(CONFIG_ROCKCHIP_RK3399) && defined(CONFIG_SPL_BUILD) 31 .space CONFIG_ROCKCHIP_SPL_RESERVE_IRAM /* space for the ATF data */ 32 #endif 33