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
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
|
/*
* Driver for AMBA PrimeCell CLCD
*
* Copyright (C) 2009 Alessandro Rubini
*
* See file CREDITS for list of people who contributed to this
* project.
*
* 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.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <common.h>
#include <asm/io.h>
#include <lcd.h>
#include <amba_clcd.h>
/* These variables are required by lcd.c -- although it sets them by itself */
int lcd_line_length;
int lcd_color_fg;
int lcd_color_bg;
void *lcd_base;
void *lcd_console_address;
short console_col;
short console_row;
/*
* To use this driver you need to provide the following in board files:
* a panel_info definition
* an lcd_enable function (can't define a weak default with current code)
*/
/* There is nothing to do with color registers, we use true color */
void lcd_setcolreg(ushort regno, ushort red, ushort green, ushort blue)
{
return;
}
/* Low level initialization of the logic cell: depends on panel_info */
void lcd_ctrl_init(void *lcdbase)
{
struct clcd_config *config;
struct clcd_registers *regs;
u32 cntl;
config = panel_info.priv;
regs = config->address;
cntl = config->cntl & ~CNTL_LCDEN;
/* Lazily, just copy the registers over: first control with disable */
writel(cntl, ®s->cntl);
writel(config->tim0, ®s->tim0);
writel(config->tim1, ®s->tim1);
writel(config->tim2, ®s->tim2);
writel(config->tim3, ®s->tim3);
writel((u32)lcdbase, ®s->ubas);
/* finally, enable */
writel(cntl | CNTL_LCDEN, ®s->cntl);
}
/* This is trivial, and copied from atmel_lcdfb.c */
ulong calc_fbsize(void)
{
return ((panel_info.vl_col * panel_info.vl_row *
NBITS(panel_info.vl_bpix)) / 8) + PAGE_SIZE;
}
|
