1 2 /* 3 * Copyright 2017 Theobroma Systems Design und Consulting GmbH 4 * 5 * SPDX-License-Identifier: GPL-2.0+ 6 */ 7 8 /* 9 * Execution starts on the instruction following this 4-byte header 10 * (containing the magic 'RK33'). 11 * 12 * To make life easier for everyone, we build the SPL binary with 13 * space for this 4-byte header already included in the binary. 14 */ 15 16 #ifdef CONFIG_SPL_BUILD 17 /* 18 * We need to add 4 bytes of space for the 'RK33' at the 19 * beginning of the executable. However, as we want to keep 20 * this generic and make it applicable to builds that are like 21 * the RK3368 (TPL needs this, SPL doesn't) or the RK3399 (no 22 * TPL, but extra space needed in the SPL), we simply repeat 23 * the 'b reset' with the expectation that the first one will 24 * be overwritten, if this is the first stage contained in the 25 * final image created with mkimage)... 26 */ 27 b reset /* may be overwritten --- should be 'nop' or a 'b reset' */ 28 #endif 29 b reset 30 31 #if defined(CONFIG_ROCKCHIP_RK3399) && defined(CONFIG_SPL_BUILD) 32 .space CONFIG_ROCKCHIP_SPL_RESERVE_IRAM /* space for the ATF data */ 33 #endif 34