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https://github.com/AsahiLinux/u-boot
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67b5dab263
The board is able to boot from the following source: - user-updateble SPI flash - write-protected part of the same SPI flash - eMMC - SD card Implement the needed function hooks to support all of these boot sources. Signed-off-by: Michael Walle <michael@walle.cc> Signed-off-by: Peng Fan <peng.fan@nxp.com>
33 lines
702 B
C
33 lines
702 B
C
// SPDX-License-Identifier: GPL-2.0+
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#include <common.h>
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#include <asm/global_data.h>
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#include <asm/io.h>
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#include "sl28.h"
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DECLARE_GLOBAL_DATA_PTR;
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u32 get_lpuart_clk(void)
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{
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return gd->bus_clk / CONFIG_SYS_FSL_LPUART_CLK_DIV;
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}
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enum boot_source sl28_boot_source(void)
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{
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u32 rcw_src = in_le32(DCFG_BASE + DCFG_PORSR1) & DCFG_PORSR1_RCW_SRC;
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switch (rcw_src) {
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case DCFG_PORSR1_RCW_SRC_SDHC1:
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return BOOT_SOURCE_SDHC;
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case DCFG_PORSR1_RCW_SRC_SDHC2:
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return BOOT_SOURCE_MMC;
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case DCFG_PORSR1_RCW_SRC_I2C:
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return BOOT_SOURCE_I2C;
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case DCFG_PORSR1_RCW_SRC_FSPI_NOR:
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return BOOT_SOURCE_SPI;
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default:
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debug("unknown bootsource (%08x)\n", rcw_src);
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return BOOT_SOURCE_UNKNOWN;
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}
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}
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