a2bc2540c2
Having a separate romstage is only desirable: - with advanced setups like vboot or normal/fallback - boot medium is slow at startup (some ARM SOCs) - bootblock is limited in size (Intel APL 32K) When this is not the case there is no need for the extra complexity that romstage brings. Including the romstage sources inside the bootblock substantially reduces the total code footprint. Often the resulting code is 10-20k smaller. This is controlled via a Kconfig option. TESTED: works on qemu x86, arm and aarch64 with and without VBOOT. Change-Id: Id68390edc1ba228b121cca89b80c64a92553e284 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/55068 Reviewed-by: Julius Werner <jwerner@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
39 lines
1.1 KiB
C
39 lines
1.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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#ifndef _CONSOLE_USB_H_
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#define _CONSOLE_USB_H_
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#include <types.h>
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void usbdebug_init(void);
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int usbdebug_hw_init(bool force);
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void usb_tx_byte(int idx, unsigned char data);
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void usb_tx_flush(int idx);
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unsigned char usb_rx_byte(int idx);
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int usb_can_rx_byte(int idx);
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#define __CONSOLE_USB_ENABLE__ (CONFIG(CONSOLE_USB) && \
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((ENV_BOOTBLOCK && CONFIG(USBDEBUG_IN_PRE_RAM)) || \
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(ENV_SEPARATE_ROMSTAGE && CONFIG(USBDEBUG_IN_PRE_RAM)) || \
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(ENV_POSTCAR && CONFIG(USBDEBUG_IN_PRE_RAM)) || \
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(ENV_SEPARATE_VERSTAGE && CONFIG(USBDEBUG_IN_PRE_RAM)) || \
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ENV_RAMSTAGE))
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#define USB_PIPE_FOR_CONSOLE 0
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#define USB_PIPE_FOR_GDB 0
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#if __CONSOLE_USB_ENABLE__
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static inline void __usbdebug_init(void) { usbdebug_init(); }
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static inline void __usb_tx_byte(u8 data)
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{
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usb_tx_byte(USB_PIPE_FOR_CONSOLE, data);
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}
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static inline void __usb_tx_flush(void) { usb_tx_flush(USB_PIPE_FOR_CONSOLE); }
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#else
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static inline void __usbdebug_init(void) {}
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static inline void __usb_tx_byte(u8 data) {}
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static inline void __usb_tx_flush(void) {}
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#endif
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#endif /* _CONSOLE_USB_H_ */
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