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d678a59d2d
When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"' I failed to notice that b4 noticed it was based on next and so took that as the base commit and merged that part of next to master. This reverts commitc8ffd1356d, reversing changes made to2ee6f3a5f7. Reported-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Tom Rini <trini@konsulko.com>
64 lines
1.2 KiB
C
64 lines
1.2 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (C) 2011 The ChromiumOS Authors. All rights reserved.
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*/
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#include <common.h>
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#include <console.h>
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#include <asm/cb_sysinfo.h>
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void cbmemc_putc(struct stdio_dev *dev, char data)
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{
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const struct sysinfo_t *sysinfo = cb_get_sysinfo();
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struct cbmem_console *cons;
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uint pos, flags;
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if (!sysinfo)
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return;
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cons = sysinfo->cbmem_cons;
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if (!cons)
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return;
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pos = cons->cursor & CBMC_CURSOR_MASK;
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/* preserve the overflow flag if present */
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flags = cons->cursor & ~CBMC_CURSOR_MASK;
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cons->body[pos++] = data;
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/*
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* Deal with overflow - the flag may be cleared by another program which
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* reads the buffer out later, e.g. Linux
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*/
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if (pos >= cons->size) {
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pos = 0;
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flags |= CBMC_OVERFLOW;
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}
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cons->cursor = flags | pos;
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}
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void cbmemc_puts(struct stdio_dev *dev, const char *str)
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{
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char c;
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while ((c = *str++) != 0)
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cbmemc_putc(dev, c);
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}
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int cbmemc_init(void)
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{
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int rc;
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struct stdio_dev cons_dev;
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memset(&cons_dev, 0, sizeof(cons_dev));
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strcpy(cons_dev.name, "cbmem");
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cons_dev.flags = DEV_FLAGS_OUTPUT; /* Output only */
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cons_dev.putc = cbmemc_putc;
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cons_dev.puts = cbmemc_puts;
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rc = stdio_register(&cons_dev);
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return (rc == 0) ? 1 : rc;
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}
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