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 static int g_lcd_init_b = 0;
39 static char *amcc_logo = " AMCC TAISHAN 440GX EvalBoard";
40 static char addr_flag = 0x80;
42 static void lcd_bl_ctrl(char val)
46 cpld_val = *LCD_BLK_CTRL;
47 *LCD_BLK_CTRL = val | cpld_val;
50 static void lcd_putc(char val)
56 if ((*LCD_CMD_ADDR & 0x80) != 0x80) { /*BF = 1 ? */
57 udelay(LCD_DELAY_NORMAL_US);
60 udelay(LCD_DELAY_NORMAL_US);
63 if (*LCD_CMD_ADDR & 0x80) {
64 printf("LCD is busy\n");
69 udelay(LCD_DELAY_NORMAL_US);
70 if ((addr != 0) && (addr % 0x10 == 0)) {
72 *LCD_CMD_ADDR = addr_flag;
75 udelay(LCD_DELAY_NORMAL_US);
77 udelay(LCD_DELAY_NORMAL_US);
80 static void lcd_puts(char *s)
86 if ((*LCD_CMD_ADDR & 0x80) != 0x80) { /*BF = 1 ? */
87 udelay(LCD_DELAY_NORMAL_US);
90 udelay(LCD_DELAY_NORMAL_US);
93 if (*LCD_CMD_ADDR & 0x80) {
94 printf("LCD is busy\n");
102 static void lcd_put_logo(void)
108 if ((*LCD_CMD_ADDR & 0x80) != 0x80) { /*BF = 1 ? */
109 udelay(LCD_DELAY_NORMAL_US);
112 udelay(LCD_DELAY_NORMAL_US);
115 if (*LCD_CMD_ADDR & 0x80) {
116 printf("LCD is busy\n");
120 *LCD_CMD_ADDR = 0x80;
127 if (g_lcd_init_b == 0) {
129 mdelay(100); /* Waiting for the LCD initialize */
131 *LCD_CMD_ADDR = 0x38; /*set function:8-bit,2-line,5x7 font type */
132 udelay(LCD_DELAY_NORMAL_US);
134 *LCD_CMD_ADDR = 0x0f; /*set display on,cursor on,blink on */
135 udelay(LCD_DELAY_NORMAL_US);
137 *LCD_CMD_ADDR = 0x01; /*display clear */
138 mdelay(LCD_DELAY_NORMAL_MS);
140 *LCD_CMD_ADDR = 0x06; /*set entry */
141 udelay(LCD_DELAY_NORMAL_US);
153 static int do_lcd_test(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
159 static int do_lcd_clear(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
161 *LCD_CMD_ADDR = 0x01;
162 mdelay(LCD_DELAY_NORMAL_MS);
165 static int do_lcd_puts(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
168 return cmd_usage(cmdtp);
173 static int do_lcd_putc(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
176 return cmd_usage(cmdtp);
178 lcd_putc((char)argv[1][0]);
181 static int do_lcd_cur(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
188 return cmd_usage(cmdtp);
190 count = simple_strtoul(argv[1], NULL, 16);
192 printf("unable to shift > 0x20\n");
196 dir = simple_strtoul(argv[2], NULL, 16);
197 cur_addr = *LCD_CMD_ADDR;
198 udelay(LCD_DELAY_NORMAL_US);
200 if (addr_flag == 0x80) {
201 if (count >= (cur_addr & 0xf)) {
202 *LCD_CMD_ADDR = 0x80;
203 udelay(LCD_DELAY_NORMAL_US);
207 if (count >= ((cur_addr & 0x0f) + 0x0f)) {
208 *LCD_CMD_ADDR = 0x80;
210 udelay(LCD_DELAY_NORMAL_US);
212 } else if (count >= (cur_addr & 0xf)) {
213 count -= cur_addr & 0xf;
214 *LCD_CMD_ADDR = 0x80 | 0xf;
216 udelay(LCD_DELAY_NORMAL_US);
220 if (addr_flag == 0x80) {
221 if (count >= (0x1f - (cur_addr & 0xf))) {
224 *LCD_CMD_ADDR = 0xc0 | 0xf;
225 udelay(LCD_DELAY_NORMAL_US);
226 } else if ((count + (cur_addr & 0xf)) >= 0x0f) {
227 count = count + (cur_addr & 0xf) - 0x0f;
229 *LCD_CMD_ADDR = 0xc0;
230 udelay(LCD_DELAY_NORMAL_US);
232 } else if ((count + (cur_addr & 0xf)) >= 0x0f) {
234 *LCD_CMD_ADDR = 0xc0 | 0xf;
235 udelay(LCD_DELAY_NORMAL_US);
241 *LCD_CMD_ADDR = 0x10;
243 *LCD_CMD_ADDR = 0x14;
245 udelay(LCD_DELAY_NORMAL_US);
251 U_BOOT_CMD(lcd_test, 1, 1, do_lcd_test, "lcd test display", "");
252 U_BOOT_CMD(lcd_cls, 1, 1, do_lcd_clear, "lcd clear display", "");
253 U_BOOT_CMD(lcd_puts, 2, 1, do_lcd_puts,
254 "display string on lcd",
255 "<string> - <string> to be displayed");
256 U_BOOT_CMD(lcd_putc, 2, 1, do_lcd_putc,
257 "display char on lcd",
258 "<char> - <char> to be displayed");
259 U_BOOT_CMD(lcd_cur, 3, 1, do_lcd_cur,
260 "shift cursor on lcd",
261 "<count> <dir>- shift cursor on lcd <count> times, direction is <dir> \n"
262 " <count> - 0~31\n" " <dir> - 0,backward; 1, forward");
264 #if 0 /* test-only */
265 void set_phy_loopback_mode(void)
270 sprintf(devemac2, "%s2", CONFIG_EMAC_DEV_NAME);
271 sprintf(devemac3, "%s3", CONFIG_EMAC_DEV_NAME);
274 unsigned short reg_short;
276 miiphy_read(devemac2, 0x1, 1, ®_short);
277 if (reg_short & 0x04) {
279 * printf("EMAC2 link up,do nothing\n");
283 miiphy_write(devemac2, 0x1, 0, 0x6000);
285 miiphy_read(devemac2, 0x1, 0, ®_short);
286 if (reg_short != 0x6000) {
288 ("\nEMAC2 error set LOOPBACK mode error,reg2[0]=%x\n",
293 miiphy_read(devemac3, 0x3, 1, ®_short);
294 if (reg_short & 0x04) {
296 * printf("EMAC3 link up,do nothing\n");
300 miiphy_write(devemac3, 0x3, 0, 0x6000);
302 miiphy_read(devemac3, 0x3, 0, ®_short);
303 if (reg_short != 0x6000) {
305 ("\nEMAC3 error set LOOPBACK mode error,reg2[0]=%x\n",
310 /* Set PHY as LOOPBACK MODE, for Linux emac initializing */
311 miiphy_write(devemac2, CONFIG_PHY2_ADDR, 0, 0x6000);
313 miiphy_write(devemac3, CONFIG_PHY3_ADDR, 0, 0x6000);
318 void set_phy_normal_mode(void)
322 unsigned short reg_short;
324 sprintf(devemac2, "%s2", CONFIG_EMAC_DEV_NAME);
325 sprintf(devemac3, "%s3", CONFIG_EMAC_DEV_NAME);
327 /* Set phy of EMAC2 */
328 miiphy_read(devemac2, CONFIG_PHY2_ADDR, 0x16, ®_short);
330 reg_short |= 0x6; /* RGMII DLL Delay */
331 miiphy_write(devemac2, CONFIG_PHY2_ADDR, 0x16, reg_short);
333 miiphy_read(devemac2, CONFIG_PHY2_ADDR, 0x17, ®_short);
334 reg_short &= ~(0x40);
335 miiphy_write(devemac2, CONFIG_PHY2_ADDR, 0x17, reg_short);
337 miiphy_write(devemac2, CONFIG_PHY2_ADDR, 0x1c, 0x74f0);
339 /* Set phy of EMAC3 */
340 miiphy_read(devemac3, CONFIG_PHY3_ADDR, 0x16, ®_short);
342 reg_short |= 0x6; /* RGMII DLL Delay */
343 miiphy_write(devemac3, CONFIG_PHY3_ADDR, 0x16, reg_short);
345 miiphy_read(devemac3, CONFIG_PHY3_ADDR, 0x17, ®_short);
346 reg_short &= ~(0x40);
347 miiphy_write(devemac3, CONFIG_PHY3_ADDR, 0x17, reg_short);
349 miiphy_write(devemac3, CONFIG_PHY3_ADDR, 0x1c, 0x74f0);
351 #endif /* 0 - test only */
353 static int do_led_test_off(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
355 volatile unsigned int *GpioOr =
356 (volatile unsigned int *)(CONFIG_SYS_PERIPHERAL_BASE + 0x700);
357 *GpioOr |= 0x00300000;
361 static int do_led_test_on(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
363 volatile unsigned int *GpioOr =
364 (volatile unsigned int *)(CONFIG_SYS_PERIPHERAL_BASE + 0x700);
365 *GpioOr &= ~0x00300000;
369 U_BOOT_CMD(ledon, 1, 1, do_led_test_on,
370 "led test light on", "");
372 U_BOOT_CMD(ledoff, 1, 1, do_led_test_off,
373 "led test light off", "");