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i2c: sh_i2c: Avoid using I2C prior to relocation

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If user uses the I2C in before the relocation, board of sh and rmobile
will not start. This will solve this problem.

Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
This commit is contained in:
Nobuhiro Iwamatsu 2013-10-11 16:23:54 +09:00 committed by Heiko Schocher
parent 13c2433ccb
commit b55b8eef35
1 changed files with 8 additions and 2 deletions
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10
drivers/i2c/sh_i2c.c
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@ -1,6 +1,6 @@
/*
* Copyright (C) 2011 Renesas Solutions Corp.
* Copyright (C) 2011 Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
* Copyright (C) 2011, 2013 Renesas Solutions Corp.
* Copyright (C) 2011, 2013 Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
@ -8,6 +8,8 @@
#include <common.h>
#include <asm/io.h>
DECLARE_GLOBAL_DATA_PTR;
/* Every register is 32bit aligned, but only 8bits in size */
#define ureg(name) u8 name; u8 __pad_##name##0; u16 __pad_##name##1;
struct sh_i2c {
@ -240,6 +242,10 @@ void i2c_init(int speed, int slaveaddr)
{
int num, denom, tmp;
/* No i2c support prior to relocation */
if (!(gd->flags & GD_FLG_RELOC))
return;
#ifdef CONFIG_I2C_MULTI_BUS
current_bus = 0;
#endif