mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-22 01:48:52 +09:00
![Anatolij Gustschin](/assets/img/avatar_default.png)
There are several mdelay() definitions in the driver and board code. Remove them all and provide a common mdelay() in lib/time.c. Signed-off-by: Anatolij Gustschin <agust@denx.de> Acked-by: Mike Frysinger <vapier@gentoo.org>
375 lines
8.6 KiB
C
375 lines
8.6 KiB
C
/*
|
|
* (C) Copyright 2007
|
|
* Stefan Roese, DENX Software Engineering, sr@denx.de.
|
|
*
|
|
* 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 <config.h>
|
|
#include <common.h>
|
|
#include <command.h>
|
|
#include <i2c.h>
|
|
#include <miiphy.h>
|
|
|
|
#ifdef CONFIG_TAISHAN
|
|
|
|
#define LCD_DELAY_NORMAL_US 100
|
|
#define LCD_DELAY_NORMAL_MS 2
|
|
#define LCD_CMD_ADDR ((volatile char *)(CONFIG_SYS_EBC2_LCM_BASE))
|
|
#define LCD_DATA_ADDR ((volatile char *)(CONFIG_SYS_EBC2_LCM_BASE+1))
|
|
#define LCD_BLK_CTRL ((volatile char *)(CONFIG_SYS_EBC1_FPGA_BASE+0x2))
|
|
|
|
static int g_lcd_init_b = 0;
|
|
static char *amcc_logo = " AMCC TAISHAN 440GX EvalBoard";
|
|
static char addr_flag = 0x80;
|
|
|
|
static void lcd_bl_ctrl(char val)
|
|
{
|
|
char cpld_val;
|
|
|
|
cpld_val = *LCD_BLK_CTRL;
|
|
*LCD_BLK_CTRL = val | cpld_val;
|
|
}
|
|
|
|
static void lcd_putc(char val)
|
|
{
|
|
int i = 100;
|
|
char addr;
|
|
|
|
while (i--) {
|
|
if ((*LCD_CMD_ADDR & 0x80) != 0x80) { /*BF = 1 ? */
|
|
udelay(LCD_DELAY_NORMAL_US);
|
|
break;
|
|
}
|
|
udelay(LCD_DELAY_NORMAL_US);
|
|
}
|
|
|
|
if (*LCD_CMD_ADDR & 0x80) {
|
|
printf("LCD is busy\n");
|
|
return;
|
|
}
|
|
|
|
addr = *LCD_CMD_ADDR;
|
|
udelay(LCD_DELAY_NORMAL_US);
|
|
if ((addr != 0) && (addr % 0x10 == 0)) {
|
|
addr_flag ^= 0x40;
|
|
*LCD_CMD_ADDR = addr_flag;
|
|
}
|
|
|
|
udelay(LCD_DELAY_NORMAL_US);
|
|
*LCD_DATA_ADDR = val;
|
|
udelay(LCD_DELAY_NORMAL_US);
|
|
}
|
|
|
|
static void lcd_puts(char *s)
|
|
{
|
|
char *p = s;
|
|
int i = 100;
|
|
|
|
while (i--) {
|
|
if ((*LCD_CMD_ADDR & 0x80) != 0x80) { /*BF = 1 ? */
|
|
udelay(LCD_DELAY_NORMAL_US);
|
|
break;
|
|
}
|
|
udelay(LCD_DELAY_NORMAL_US);
|
|
}
|
|
|
|
if (*LCD_CMD_ADDR & 0x80) {
|
|
printf("LCD is busy\n");
|
|
return;
|
|
}
|
|
|
|
while (*p)
|
|
lcd_putc(*p++);
|
|
}
|
|
|
|
static void lcd_put_logo(void)
|
|
{
|
|
int i = 100;
|
|
char *p = amcc_logo;
|
|
|
|
while (i--) {
|
|
if ((*LCD_CMD_ADDR & 0x80) != 0x80) { /*BF = 1 ? */
|
|
udelay(LCD_DELAY_NORMAL_US);
|
|
break;
|
|
}
|
|
udelay(LCD_DELAY_NORMAL_US);
|
|
}
|
|
|
|
if (*LCD_CMD_ADDR & 0x80) {
|
|
printf("LCD is busy\n");
|
|
return;
|
|
}
|
|
|
|
*LCD_CMD_ADDR = 0x80;
|
|
while (*p)
|
|
lcd_putc(*p++);
|
|
}
|
|
|
|
int lcd_init(void)
|
|
{
|
|
if (g_lcd_init_b == 0) {
|
|
puts("LCD: ");
|
|
mdelay(100); /* Waiting for the LCD initialize */
|
|
|
|
*LCD_CMD_ADDR = 0x38; /*set function:8-bit,2-line,5x7 font type */
|
|
udelay(LCD_DELAY_NORMAL_US);
|
|
|
|
*LCD_CMD_ADDR = 0x0f; /*set display on,cursor on,blink on */
|
|
udelay(LCD_DELAY_NORMAL_US);
|
|
|
|
*LCD_CMD_ADDR = 0x01; /*display clear */
|
|
mdelay(LCD_DELAY_NORMAL_MS);
|
|
|
|
*LCD_CMD_ADDR = 0x06; /*set entry */
|
|
udelay(LCD_DELAY_NORMAL_US);
|
|
|
|
lcd_bl_ctrl(0x02);
|
|
lcd_put_logo();
|
|
|
|
puts(" ready\n");
|
|
g_lcd_init_b = 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int do_lcd_test(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
|
|
{
|
|
lcd_init();
|
|
return 0;
|
|
}
|
|
|
|
static int do_lcd_clear(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
|
|
{
|
|
*LCD_CMD_ADDR = 0x01;
|
|
mdelay(LCD_DELAY_NORMAL_MS);
|
|
return 0;
|
|
}
|
|
static int do_lcd_puts(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
|
|
{
|
|
if (argc < 2)
|
|
return cmd_usage(cmdtp);
|
|
|
|
lcd_puts(argv[1]);
|
|
return 0;
|
|
}
|
|
static int do_lcd_putc(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
|
|
{
|
|
if (argc < 2)
|
|
return cmd_usage(cmdtp);
|
|
|
|
lcd_putc((char)argv[1][0]);
|
|
return 0;
|
|
}
|
|
static int do_lcd_cur(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
|
|
{
|
|
ulong count;
|
|
ulong dir;
|
|
char cur_addr;
|
|
|
|
if (argc < 3)
|
|
return cmd_usage(cmdtp);
|
|
|
|
count = simple_strtoul(argv[1], NULL, 16);
|
|
if (count > 31) {
|
|
printf("unable to shift > 0x20\n");
|
|
count = 0;
|
|
}
|
|
|
|
dir = simple_strtoul(argv[2], NULL, 16);
|
|
cur_addr = *LCD_CMD_ADDR;
|
|
udelay(LCD_DELAY_NORMAL_US);
|
|
if (dir == 0x0) {
|
|
if (addr_flag == 0x80) {
|
|
if (count >= (cur_addr & 0xf)) {
|
|
*LCD_CMD_ADDR = 0x80;
|
|
udelay(LCD_DELAY_NORMAL_US);
|
|
count = 0;
|
|
}
|
|
} else {
|
|
if (count >= ((cur_addr & 0x0f) + 0x0f)) {
|
|
*LCD_CMD_ADDR = 0x80;
|
|
addr_flag = 0x80;
|
|
udelay(LCD_DELAY_NORMAL_US);
|
|
count = 0x0;
|
|
} else if (count >= (cur_addr & 0xf)) {
|
|
count -= cur_addr & 0xf;
|
|
*LCD_CMD_ADDR = 0x80 | 0xf;
|
|
addr_flag = 0x80;
|
|
udelay(LCD_DELAY_NORMAL_US);
|
|
}
|
|
}
|
|
} else {
|
|
if (addr_flag == 0x80) {
|
|
if (count >= (0x1f - (cur_addr & 0xf))) {
|
|
count = 0x0;
|
|
addr_flag = 0xc0;
|
|
*LCD_CMD_ADDR = 0xc0 | 0xf;
|
|
udelay(LCD_DELAY_NORMAL_US);
|
|
} else if ((count + (cur_addr & 0xf)) >= 0x0f) {
|
|
count = count + (cur_addr & 0xf) - 0x0f;
|
|
addr_flag = 0xc0;
|
|
*LCD_CMD_ADDR = 0xc0;
|
|
udelay(LCD_DELAY_NORMAL_US);
|
|
}
|
|
} else if ((count + (cur_addr & 0xf)) >= 0x0f) {
|
|
count = 0x0;
|
|
*LCD_CMD_ADDR = 0xc0 | 0xf;
|
|
udelay(LCD_DELAY_NORMAL_US);
|
|
}
|
|
}
|
|
|
|
while (count--) {
|
|
if (dir == 0) {
|
|
*LCD_CMD_ADDR = 0x10;
|
|
} else {
|
|
*LCD_CMD_ADDR = 0x14;
|
|
}
|
|
udelay(LCD_DELAY_NORMAL_US);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
U_BOOT_CMD(lcd_test, 1, 1, do_lcd_test, "lcd test display", "");
|
|
U_BOOT_CMD(lcd_cls, 1, 1, do_lcd_clear, "lcd clear display", "");
|
|
U_BOOT_CMD(lcd_puts, 2, 1, do_lcd_puts,
|
|
"display string on lcd",
|
|
"<string> - <string> to be displayed");
|
|
U_BOOT_CMD(lcd_putc, 2, 1, do_lcd_putc,
|
|
"display char on lcd",
|
|
"<char> - <char> to be displayed");
|
|
U_BOOT_CMD(lcd_cur, 3, 1, do_lcd_cur,
|
|
"shift cursor on lcd",
|
|
"<count> <dir>- shift cursor on lcd <count> times, direction is <dir> \n"
|
|
" <count> - 0~31\n" " <dir> - 0,backward; 1, forward");
|
|
|
|
#if 0 /* test-only */
|
|
void set_phy_loopback_mode(void)
|
|
{
|
|
char devemac2[32];
|
|
char devemac3[32];
|
|
|
|
sprintf(devemac2, "%s2", CONFIG_EMAC_DEV_NAME);
|
|
sprintf(devemac3, "%s3", CONFIG_EMAC_DEV_NAME);
|
|
|
|
#if 0
|
|
unsigned short reg_short;
|
|
|
|
miiphy_read(devemac2, 0x1, 1, ®_short);
|
|
if (reg_short & 0x04) {
|
|
/*
|
|
* printf("EMAC2 link up,do nothing\n");
|
|
*/
|
|
} else {
|
|
udelay(1000);
|
|
miiphy_write(devemac2, 0x1, 0, 0x6000);
|
|
udelay(1000);
|
|
miiphy_read(devemac2, 0x1, 0, ®_short);
|
|
if (reg_short != 0x6000) {
|
|
printf
|
|
("\nEMAC2 error set LOOPBACK mode error,reg2[0]=%x\n",
|
|
reg_short);
|
|
}
|
|
}
|
|
|
|
miiphy_read(devemac3, 0x3, 1, ®_short);
|
|
if (reg_short & 0x04) {
|
|
/*
|
|
* printf("EMAC3 link up,do nothing\n");
|
|
*/
|
|
} else {
|
|
udelay(1000);
|
|
miiphy_write(devemac3, 0x3, 0, 0x6000);
|
|
udelay(1000);
|
|
miiphy_read(devemac3, 0x3, 0, ®_short);
|
|
if (reg_short != 0x6000) {
|
|
printf
|
|
("\nEMAC3 error set LOOPBACK mode error,reg2[0]=%x\n",
|
|
reg_short);
|
|
}
|
|
}
|
|
#else
|
|
/* Set PHY as LOOPBACK MODE, for Linux emac initializing */
|
|
miiphy_write(devemac2, CONFIG_PHY2_ADDR, 0, 0x6000);
|
|
udelay(1000);
|
|
miiphy_write(devemac3, CONFIG_PHY3_ADDR, 0, 0x6000);
|
|
udelay(1000);
|
|
#endif /* 0 */
|
|
}
|
|
|
|
void set_phy_normal_mode(void)
|
|
{
|
|
char devemac2[32];
|
|
char devemac3[32];
|
|
unsigned short reg_short;
|
|
|
|
sprintf(devemac2, "%s2", CONFIG_EMAC_DEV_NAME);
|
|
sprintf(devemac3, "%s3", CONFIG_EMAC_DEV_NAME);
|
|
|
|
/* Set phy of EMAC2 */
|
|
miiphy_read(devemac2, CONFIG_PHY2_ADDR, 0x16, ®_short);
|
|
reg_short &= ~(0x7);
|
|
reg_short |= 0x6; /* RGMII DLL Delay */
|
|
miiphy_write(devemac2, CONFIG_PHY2_ADDR, 0x16, reg_short);
|
|
|
|
miiphy_read(devemac2, CONFIG_PHY2_ADDR, 0x17, ®_short);
|
|
reg_short &= ~(0x40);
|
|
miiphy_write(devemac2, CONFIG_PHY2_ADDR, 0x17, reg_short);
|
|
|
|
miiphy_write(devemac2, CONFIG_PHY2_ADDR, 0x1c, 0x74f0);
|
|
|
|
/* Set phy of EMAC3 */
|
|
miiphy_read(devemac3, CONFIG_PHY3_ADDR, 0x16, ®_short);
|
|
reg_short &= ~(0x7);
|
|
reg_short |= 0x6; /* RGMII DLL Delay */
|
|
miiphy_write(devemac3, CONFIG_PHY3_ADDR, 0x16, reg_short);
|
|
|
|
miiphy_read(devemac3, CONFIG_PHY3_ADDR, 0x17, ®_short);
|
|
reg_short &= ~(0x40);
|
|
miiphy_write(devemac3, CONFIG_PHY3_ADDR, 0x17, reg_short);
|
|
|
|
miiphy_write(devemac3, CONFIG_PHY3_ADDR, 0x1c, 0x74f0);
|
|
}
|
|
#endif /* 0 - test only */
|
|
|
|
static int do_led_test_off(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
|
|
{
|
|
volatile unsigned int *GpioOr =
|
|
(volatile unsigned int *)(CONFIG_SYS_PERIPHERAL_BASE + 0x700);
|
|
*GpioOr |= 0x00300000;
|
|
return 0;
|
|
}
|
|
|
|
static int do_led_test_on(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
|
|
{
|
|
volatile unsigned int *GpioOr =
|
|
(volatile unsigned int *)(CONFIG_SYS_PERIPHERAL_BASE + 0x700);
|
|
*GpioOr &= ~0x00300000;
|
|
return 0;
|
|
}
|
|
|
|
U_BOOT_CMD(ledon, 1, 1, do_led_test_on,
|
|
"led test light on", "");
|
|
|
|
U_BOOT_CMD(ledoff, 1, 1, do_led_test_off,
|
|
"led test light off", "");
|
|
#endif
|