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https://github.com/AsahiLinux/u-boot
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11381fba99
The commit 0dba45864b ("arm: Init the debug UART") calls
debug_uart_init() from crt0.S but it won't work because SOC is not
configured yet. That's why create board_debug_uart_init() which calls
psu_init() via new psu_uboot_init() earlier before the first access to UART
in SPL. In full U-Boot call psu_uboot_init() only when
CONFIG_ZYNQMP_PSU_INIT_ENABLED is enabled.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Link: https://lore.kernel.org/r/878dc2daaa8685346f889989fbfb98b2e44da7fb.1645104518.git.michal.simek@xilinx.com
27 lines
642 B
C
27 lines
642 B
C
/* SPDX-License-Identifier: GPL-2.0+ */
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#ifndef _PSU_INIT_GPL_H_ /* prevent circular inclusions */
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#define _PSU_INIT_GPL_H_
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#include <asm/io.h>
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#include <common.h>
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int mask_pollonvalue(unsigned long add, u32 mask, u32 value);
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int mask_poll(u32 add, u32 mask);
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u32 mask_read(u32 add, u32 mask);
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void mask_delay(u32 delay);
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void psu_mask_write(unsigned long offset, unsigned long mask,
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unsigned long val);
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void prog_reg(unsigned long addr, unsigned long mask,
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unsigned long shift, unsigned long value);
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int psu_init(void);
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unsigned long psu_post_config_data(void);
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int psu_uboot_init(void);
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#endif /* _PSU_INIT_GPL_H_ */
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