blob: f9bf78d4fdfb9681dd38f534477335f0617b9206 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
|
/*
* Flash support for OMAP1
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/io.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/map.h>
#include <plat/tc.h>
#include <plat/flash.h>
#include <mach/hardware.h>
void omap1_set_vpp(struct platform_device *pdev, int enable)
{
static int count;
u32 l;
if (enable) {
if (count++ == 0) {
l = omap_readl(EMIFS_CONFIG);
l |= OMAP_EMIFS_CONFIG_WP;
omap_writel(l, EMIFS_CONFIG);
}
} else {
if (count && (--count == 0)) {
l = omap_readl(EMIFS_CONFIG);
l &= ~OMAP_EMIFS_CONFIG_WP;
omap_writel(l, EMIFS_CONFIG);
}
}
}
|
