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5c93316c8c
prom_putchar() is used centrally in early printk infrastructure therefore
at least MIPS should agree on the function return type.
[paul.burton@mips.com:
- Include linux/types.h in asm/setup.h to gain the bool typedef before
we start include asm/setup.h elsewhere.
- Include asm/setup.h in all files that use or define prom_putchar().
- Also standardise on signed rather than unsigned char argument.]
Signed-off-by: Alexander Sverdlin <alexander.sverdlin@nokia.com>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Patchwork: https://patchwork.linux-mips.org/patch/19842/
Cc: linux-mips@linux-mips.org
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: Jonas Gorski <jonas.gorski@gmail.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Kate Stewart <kstewart@linuxfoundation.org>
Cc: Philippe Ombredanne <pombredanne@nexb.com>
40 lines
921 B
C
40 lines
921 B
C
/*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*
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* Copyright (C) 2001, 2002 Ralf Baechle
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*/
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#include <asm/page.h>
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#include <asm/setup.h>
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#include <asm/sn/addrs.h>
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#include <asm/sn/sn0/hub.h>
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#include <asm/sn/klconfig.h>
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#include <asm/sn/ioc3.h>
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#include <asm/sn/sn_private.h>
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#include <linux/serial.h>
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#include <linux/serial_core.h>
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#define IOC3_CLK (22000000 / 3)
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#define IOC3_FLAGS (0)
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static inline struct ioc3_uartregs *console_uart(void)
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{
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struct ioc3 *ioc3;
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nasid_t nasid;
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nasid = (master_nasid == INVALID_NASID) ? get_nasid() : master_nasid;
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ioc3 = (struct ioc3 *)KL_CONFIG_CH_CONS_INFO(nasid)->memory_base;
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return &ioc3->sregs.uarta;
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}
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void prom_putchar(char c)
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{
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struct ioc3_uartregs *uart = console_uart();
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while ((uart->iu_lsr & 0x20) == 0);
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uart->iu_thr = c;
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}
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