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spl, common, serial: build SPL without serial support
This patch enables building SPL without CONFIG_SPL_SERIAL_SUPPORT support. Signed-off-by: Heiko Schocher <hs@denx.de> [trini: Ensure we build arch/arm/imx-common on mx28] Signed-off-by: Tom Rini <trini@konsulko.com>
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@ -597,7 +597,7 @@ int cli_readline_into_buffer(const char *const prompt, char *buffer,
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puts(tab_seq + (col & 07));
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col += 8 - (col & 07);
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} else {
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char buf[2];
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char __maybe_unused buf[2];
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/*
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* Echo input using puts() to force an
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