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yaml
---
r: 77531
b: refs/heads/master
c: a083279
h: refs/heads/master
i:
  77529: 21d3801
  77527: a5d38a4
v: v3
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Tzachi Perelstein authored and Russell King committed Jan 26, 2008
1 parent 3f517f0 commit 54ed97e
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Showing 5 changed files with 43 additions and 25 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 60ce1c20068ec2c138cdf9e5cbe583cc60883c62
refs/heads/master: a0832798c05241f15e793805b6024919c07b8292
2 changes: 1 addition & 1 deletion trunk/drivers/i2c/busses/Kconfig
Original file line number Diff line number Diff line change
Expand Up @@ -648,7 +648,7 @@ config I2C_PCA_ISA

config I2C_MV64XXX
tristate "Marvell mv64xxx I2C Controller"
depends on MV64X60 && EXPERIMENTAL
depends on (MV64X60 || ARCH_ORION) && EXPERIMENTAL
help
If you say yes to this option, support will be included for the
built-in I2C interface on the Marvell 64xxx line of host bridges.
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31 changes: 17 additions & 14 deletions trunk/drivers/i2c/busses/i2c-mv64xxx.c
Original file line number Diff line number Diff line change
@@ -1,6 +1,6 @@
/*
* Driver for the i2c controller on the Marvell line of host bridges for MIPS
* and PPC (e.g, gt642[46]0, mv643[46]0, mv644[46]0).
* Driver for the i2c controller on the Marvell line of host bridges
* (e.g, gt642[46]0, mv643[46]0, mv644[46]0, and Orion SoC family).
*
* Author: Mark A. Greer <mgreer@mvista.com>
*
Expand All @@ -14,7 +14,7 @@
#include <linux/spinlock.h>
#include <linux/i2c.h>
#include <linux/interrupt.h>
#include <linux/mv643xx.h>
#include <linux/mv643xx_i2c.h>
#include <linux/platform_device.h>

#include <asm/io.h>
Expand Down Expand Up @@ -86,6 +86,7 @@ struct mv64xxx_i2c_data {
u32 cntl_bits;
void __iomem *reg_base;
u32 reg_base_p;
u32 reg_size;
u32 addr1;
u32 addr2;
u32 bytes_left;
Expand Down Expand Up @@ -463,17 +464,20 @@ static int __devinit
mv64xxx_i2c_map_regs(struct platform_device *pd,
struct mv64xxx_i2c_data *drv_data)
{
struct resource *r;
int size;
struct resource *r = platform_get_resource(pd, IORESOURCE_MEM, 0);

if ((r = platform_get_resource(pd, IORESOURCE_MEM, 0)) &&
request_mem_region(r->start, MV64XXX_I2C_REG_BLOCK_SIZE,
drv_data->adapter.name)) {
if (!r)
return -ENODEV;

drv_data->reg_base = ioremap(r->start,
MV64XXX_I2C_REG_BLOCK_SIZE);
drv_data->reg_base_p = r->start;
} else
return -ENOMEM;
size = r->end - r->start + 1;

if (!request_mem_region(r->start, size, drv_data->adapter.name))
return -EBUSY;

drv_data->reg_base = ioremap(r->start, size);
drv_data->reg_base_p = r->start;
drv_data->reg_size = size;

return 0;
}
Expand All @@ -483,8 +487,7 @@ mv64xxx_i2c_unmap_regs(struct mv64xxx_i2c_data *drv_data)
{
if (drv_data->reg_base) {
iounmap(drv_data->reg_base);
release_mem_region(drv_data->reg_base_p,
MV64XXX_I2C_REG_BLOCK_SIZE);
release_mem_region(drv_data->reg_base_p, drv_data->reg_size);
}

drv_data->reg_base = NULL;
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10 changes: 1 addition & 9 deletions trunk/include/linux/mv643xx.h
Original file line number Diff line number Diff line change
Expand Up @@ -15,6 +15,7 @@

#include <asm/types.h>
#include <linux/mv643xx_eth.h>
#include <linux/mv643xx_i2c.h>

/****************************************/
/* Processor Address Space */
Expand Down Expand Up @@ -863,7 +864,6 @@
/* I2C Registers */
/****************************************/

#define MV64XXX_I2C_CTLR_NAME "mv64xxx_i2c"
#define MV64XXX_I2C_OFFSET 0xc000
#define MV64XXX_I2C_REG_BLOCK_SIZE 0x0020

Expand Down Expand Up @@ -968,14 +968,6 @@ struct mpsc_pdata {
u32 brg_clk_freq;
};

/* i2c Platform Device, Driver Data */
struct mv64xxx_i2c_pdata {
u32 freq_m;
u32 freq_n;
u32 timeout; /* In milliseconds */
u32 retries;
};

/* Watchdog Platform Device, Driver Data */
#define MV64x60_WDT_NAME "mv64x60_wdt"

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23 changes: 23 additions & 0 deletions trunk/include/linux/mv643xx_i2c.h
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@@ -0,0 +1,23 @@
/*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*/

#ifndef _MV64XXX_I2C_H_
#define _MV64XXX_I2C_H_

#include <linux/types.h>

#define MV64XXX_I2C_CTLR_NAME "mv64xxx_i2c"

/* i2c Platform Device, Driver Data */
struct mv64xxx_i2c_pdata {
u32 freq_m;
u32 freq_n;
u32 timeout; /* In milliseconds */
u32 retries;
};

#endif /*_MV64XXX_I2C_H_*/

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