| /* |
| * (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)) |
| |
| #define mdelay(t) ({unsigned long msec=(t); while (msec--) { udelay(1000);}}) |
| |
| 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) { |
| cmd_usage(cmdtp); |
| return 1; |
| } |
| 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) { |
| cmd_usage(cmdtp); |
| return 1; |
| } |
| 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) { |
| cmd_usage(cmdtp); |
| return 1; |
| } |
| |
| 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 |