3 * Stefan Roese, DENX Software Engineering, sr@denx.de.
5 * See file CREDITS for list of people who contributed to this
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
32 #define LCD_DELAY_NORMAL_US 100
33 #define LCD_DELAY_NORMAL_MS 2
34 #define LCD_CMD_ADDR ((volatile char *)(CONFIG_SYS_EBC2_LCM_BASE))
35 #define LCD_DATA_ADDR ((volatile char *)(CONFIG_SYS_EBC2_LCM_BASE+1))
36 #define LCD_BLK_CTRL ((volatile char *)(CONFIG_SYS_EBC1_FPGA_BASE+0x2))
38 #define mdelay(t) ({unsigned long msec=(t); while (msec--) { udelay(1000);}})
40 static int g_lcd_init_b = 0;
41 static char *amcc_logo = " AMCC TAISHAN 440GX EvalBoard";
42 static char addr_flag = 0x80;
44 static void lcd_bl_ctrl(char val)
48 cpld_val = *LCD_BLK_CTRL;
49 *LCD_BLK_CTRL = val | cpld_val;
52 static void lcd_putc(char val)
58 if ((*LCD_CMD_ADDR & 0x80) != 0x80) { /*BF = 1 ? */
59 udelay(LCD_DELAY_NORMAL_US);
62 udelay(LCD_DELAY_NORMAL_US);
65 if (*LCD_CMD_ADDR & 0x80) {
66 printf("LCD is busy\n");
71 udelay(LCD_DELAY_NORMAL_US);
72 if ((addr != 0) && (addr % 0x10 == 0)) {
74 *LCD_CMD_ADDR = addr_flag;
77 udelay(LCD_DELAY_NORMAL_US);
79 udelay(LCD_DELAY_NORMAL_US);
82 static void lcd_puts(char *s)
88 if ((*LCD_CMD_ADDR & 0x80) != 0x80) { /*BF = 1 ? */
89 udelay(LCD_DELAY_NORMAL_US);
92 udelay(LCD_DELAY_NORMAL_US);
95 if (*LCD_CMD_ADDR & 0x80) {
96 printf("LCD is busy\n");
104 static void lcd_put_logo(void)
110 if ((*LCD_CMD_ADDR & 0x80) != 0x80) { /*BF = 1 ? */
111 udelay(LCD_DELAY_NORMAL_US);
114 udelay(LCD_DELAY_NORMAL_US);
117 if (*LCD_CMD_ADDR & 0x80) {
118 printf("LCD is busy\n");
122 *LCD_CMD_ADDR = 0x80;
129 if (g_lcd_init_b == 0) {
131 mdelay(100); /* Waiting for the LCD initialize */
133 *LCD_CMD_ADDR = 0x38; /*set function:8-bit,2-line,5x7 font type */
134 udelay(LCD_DELAY_NORMAL_US);
136 *LCD_CMD_ADDR = 0x0f; /*set display on,cursor on,blink on */
137 udelay(LCD_DELAY_NORMAL_US);
139 *LCD_CMD_ADDR = 0x01; /*display clear */
140 mdelay(LCD_DELAY_NORMAL_MS);
142 *LCD_CMD_ADDR = 0x06; /*set entry */
143 udelay(LCD_DELAY_NORMAL_US);
155 static int do_lcd_test(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
161 static int do_lcd_clear(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
163 *LCD_CMD_ADDR = 0x01;
164 mdelay(LCD_DELAY_NORMAL_MS);
167 static int do_lcd_puts(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
170 return cmd_usage(cmdtp);
175 static int do_lcd_putc(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
178 return cmd_usage(cmdtp);
180 lcd_putc((char)argv[1][0]);
183 static int do_lcd_cur(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
190 return cmd_usage(cmdtp);
192 count = simple_strtoul(argv[1], NULL, 16);
194 printf("unable to shift > 0x20\n");
198 dir = simple_strtoul(argv[2], NULL, 16);
199 cur_addr = *LCD_CMD_ADDR;
200 udelay(LCD_DELAY_NORMAL_US);
202 if (addr_flag == 0x80) {
203 if (count >= (cur_addr & 0xf)) {
204 *LCD_CMD_ADDR = 0x80;
205 udelay(LCD_DELAY_NORMAL_US);
209 if (count >= ((cur_addr & 0x0f) + 0x0f)) {
210 *LCD_CMD_ADDR = 0x80;
212 udelay(LCD_DELAY_NORMAL_US);
214 } else if (count >= (cur_addr & 0xf)) {
215 count -= cur_addr & 0xf;
216 *LCD_CMD_ADDR = 0x80 | 0xf;
218 udelay(LCD_DELAY_NORMAL_US);
222 if (addr_flag == 0x80) {
223 if (count >= (0x1f - (cur_addr & 0xf))) {
226 *LCD_CMD_ADDR = 0xc0 | 0xf;
227 udelay(LCD_DELAY_NORMAL_US);
228 } else if ((count + (cur_addr & 0xf)) >= 0x0f) {
229 count = count + (cur_addr & 0xf) - 0x0f;
231 *LCD_CMD_ADDR = 0xc0;
232 udelay(LCD_DELAY_NORMAL_US);
234 } else if ((count + (cur_addr & 0xf)) >= 0x0f) {
236 *LCD_CMD_ADDR = 0xc0 | 0xf;
237 udelay(LCD_DELAY_NORMAL_US);
243 *LCD_CMD_ADDR = 0x10;
245 *LCD_CMD_ADDR = 0x14;
247 udelay(LCD_DELAY_NORMAL_US);
253 U_BOOT_CMD(lcd_test, 1, 1, do_lcd_test, "lcd test display", "");
254 U_BOOT_CMD(lcd_cls, 1, 1, do_lcd_clear, "lcd clear display", "");
255 U_BOOT_CMD(lcd_puts, 2, 1, do_lcd_puts,
256 "display string on lcd",
257 "<string> - <string> to be displayed");
258 U_BOOT_CMD(lcd_putc, 2, 1, do_lcd_putc,
259 "display char on lcd",
260 "<char> - <char> to be displayed");
261 U_BOOT_CMD(lcd_cur, 3, 1, do_lcd_cur,
262 "shift cursor on lcd",
263 "<count> <dir>- shift cursor on lcd <count> times, direction is <dir> \n"
264 " <count> - 0~31\n" " <dir> - 0,backward; 1, forward");
266 #if 0 /* test-only */
267 void set_phy_loopback_mode(void)
272 sprintf(devemac2, "%s2", CONFIG_EMAC_DEV_NAME);
273 sprintf(devemac3, "%s3", CONFIG_EMAC_DEV_NAME);
276 unsigned short reg_short;
278 miiphy_read(devemac2, 0x1, 1, ®_short);
279 if (reg_short & 0x04) {
281 * printf("EMAC2 link up,do nothing\n");
285 miiphy_write(devemac2, 0x1, 0, 0x6000);
287 miiphy_read(devemac2, 0x1, 0, ®_short);
288 if (reg_short != 0x6000) {
290 ("\nEMAC2 error set LOOPBACK mode error,reg2[0]=%x\n",
295 miiphy_read(devemac3, 0x3, 1, ®_short);
296 if (reg_short & 0x04) {
298 * printf("EMAC3 link up,do nothing\n");
302 miiphy_write(devemac3, 0x3, 0, 0x6000);
304 miiphy_read(devemac3, 0x3, 0, ®_short);
305 if (reg_short != 0x6000) {
307 ("\nEMAC3 error set LOOPBACK mode error,reg2[0]=%x\n",
312 /* Set PHY as LOOPBACK MODE, for Linux emac initializing */
313 miiphy_write(devemac2, CONFIG_PHY2_ADDR, 0, 0x6000);
315 miiphy_write(devemac3, CONFIG_PHY3_ADDR, 0, 0x6000);
320 void set_phy_normal_mode(void)
324 unsigned short reg_short;
326 sprintf(devemac2, "%s2", CONFIG_EMAC_DEV_NAME);
327 sprintf(devemac3, "%s3", CONFIG_EMAC_DEV_NAME);
329 /* Set phy of EMAC2 */
330 miiphy_read(devemac2, CONFIG_PHY2_ADDR, 0x16, ®_short);
332 reg_short |= 0x6; /* RGMII DLL Delay */
333 miiphy_write(devemac2, CONFIG_PHY2_ADDR, 0x16, reg_short);
335 miiphy_read(devemac2, CONFIG_PHY2_ADDR, 0x17, ®_short);
336 reg_short &= ~(0x40);
337 miiphy_write(devemac2, CONFIG_PHY2_ADDR, 0x17, reg_short);
339 miiphy_write(devemac2, CONFIG_PHY2_ADDR, 0x1c, 0x74f0);
341 /* Set phy of EMAC3 */
342 miiphy_read(devemac3, CONFIG_PHY3_ADDR, 0x16, ®_short);
344 reg_short |= 0x6; /* RGMII DLL Delay */
345 miiphy_write(devemac3, CONFIG_PHY3_ADDR, 0x16, reg_short);
347 miiphy_read(devemac3, CONFIG_PHY3_ADDR, 0x17, ®_short);
348 reg_short &= ~(0x40);
349 miiphy_write(devemac3, CONFIG_PHY3_ADDR, 0x17, reg_short);
351 miiphy_write(devemac3, CONFIG_PHY3_ADDR, 0x1c, 0x74f0);
353 #endif /* 0 - test only */
355 static int do_led_test_off(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
357 volatile unsigned int *GpioOr =
358 (volatile unsigned int *)(CONFIG_SYS_PERIPHERAL_BASE + 0x700);
359 *GpioOr |= 0x00300000;
363 static int do_led_test_on(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
365 volatile unsigned int *GpioOr =
366 (volatile unsigned int *)(CONFIG_SYS_PERIPHERAL_BASE + 0x700);
367 *GpioOr &= ~0x00300000;
371 U_BOOT_CMD(ledon, 1, 1, do_led_test_on,
372 "led test light on", "");
374 U_BOOT_CMD(ledoff, 1, 1, do_led_test_off,
375 "led test light off", "");