1 // SPDX-License-Identifier: GPL-2.0+
2 
3 #include <config.h>
4 #include <asm/global_data.h>
5 #include <asm/io.h>
6 
7 #include "sl28.h"
8 
9 DECLARE_GLOBAL_DATA_PTR;
10 
get_lpuart_clk(void)11 u32 get_lpuart_clk(void)
12 {
13 	return gd->bus_clk / CONFIG_SYS_FSL_LPUART_CLK_DIV;
14 }
15 
sl28_boot_source(void)16 enum boot_source sl28_boot_source(void)
17 {
18 	u32 rcw_src = in_le32(DCFG_BASE + DCFG_PORSR1) & DCFG_PORSR1_RCW_SRC;
19 
20 	switch (rcw_src) {
21 	case DCFG_PORSR1_RCW_SRC_SDHC1:
22 		return BOOT_SOURCE_SDHC;
23 	case DCFG_PORSR1_RCW_SRC_SDHC2:
24 		return BOOT_SOURCE_MMC;
25 	case DCFG_PORSR1_RCW_SRC_I2C:
26 		return BOOT_SOURCE_I2C;
27 	case DCFG_PORSR1_RCW_SRC_FSPI_NOR:
28 		return BOOT_SOURCE_SPI;
29 	default:
30 		debug("unknown bootsource (%08x)\n", rcw_src);
31 		return BOOT_SOURCE_UNKNOWN;
32 	}
33 }
34