diff options
Diffstat (limited to 'board/socrates/socrates.c')
| -rw-r--r-- | board/socrates/socrates.c | 198 |
1 files changed, 198 insertions, 0 deletions
diff --git a/board/socrates/socrates.c b/board/socrates/socrates.c index 63694a7..73a2d9d 100644 --- a/board/socrates/socrates.c +++ b/board/socrates/socrates.c @@ -173,6 +173,12 @@ void local_bus_init (void) /* Init UPMA for FPGA access */ out_be32 (&lbc->mamr, 0x44440); /* Use a customer-supplied value */ upmconfig (UPMA, (uint *)UPMTableA, sizeof(UPMTableA)/sizeof(int)); + + if (getenv("lime")) { + /* Init UPMB for Lime controller access */ + out_be32 (&lbc->mbmr, 0x444440); /* Use a customer-supplied value */ + upmconfig (UPMB, (uint *)UPMTableB, sizeof(UPMTableB)/sizeof(int)); + } } #if defined(CONFIG_PCI) @@ -239,6 +245,14 @@ ft_board_setup(void *blob, bd_t *bd) val[i++] = gd->bd->bi_flashstart; val[i++] = gd->bd->bi_flashsize; + if (getenv("lime")) { + /* Fixup LIME mapping */ + val[i++] = 2; /* chip select number */ + val[i++] = 0; /* always 0 */ + val[i++] = CFG_LIME_BASE; + val[i++] = CFG_LIME_SIZE; + } + /* Fixup FPGA mapping */ val[i++] = 3; /* chip select number */ val[i++] = 0; /* always 0 */ @@ -252,3 +266,187 @@ ft_board_setup(void *blob, bd_t *bd) fdt_strerror(rc)); } #endif /* defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP) */ + +#include <i2c.h> +#include <mb862xx.h> +#include <video_fb.h> + +#define CFG_LIME_SRST ((CFG_LIME_BASE) + 0x01FC002C) +#define CFG_LIME_CCF ((CFG_LIME_BASE) + 0x01FC0038) +#define CFG_LIME_MMR ((CFG_LIME_BASE) + 0x01FCFFFC) +/* Lime clock frequency */ +#define CFG_LIME_CLK_100MHZ 0x00000 +#define CFG_LIME_CLK_133MHZ 0x10000 +/* SDRAM parameter */ +#define CFG_LIME_MMR_VALUE 0x4157BA63 + +#define DISPLAY_WIDTH 800 +#define DISPLAY_HEIGHT 480 +#define DEFAULT_BRIGHTNESS 25 +#define BACKLIGHT_ENABLE (1 << 31) + +extern GraphicDevice mb862xx; + +static const gdc_regs init_regs [] = +{ + {0x0100, 0x00010f00}, + {0x0020, 0x801901df}, + {0x0024, 0x00000000}, + {0x0028, 0x00000000}, + {0x002c, 0x00000000}, + {0x0110, 0x00000000}, + {0x0114, 0x00000000}, + {0x0118, 0x01df0320}, + {0x0004, 0x041f0000}, + {0x0008, 0x031f031f}, + {0x000c, 0x017f0349}, + {0x0010, 0x020c0000}, + {0x0014, 0x01df01e9}, + {0x0018, 0x00000000}, + {0x001c, 0x01e00320}, + {0x0100, 0x80010f00}, + {0x0, 0x0} +}; + +const gdc_regs *board_get_regs (void) +{ + return init_regs; +} + +/* Returns Lime base address */ +unsigned int board_video_init (void) +{ + + if (!getenv("lime")) + return 0; + + /* + * Reset Lime controller + */ + out_be32((void *)CFG_LIME_SRST, 0x1); + udelay(200); + + /* Set Lime clock to 133MHz */ + out_be32((void *)CFG_LIME_CCF, CFG_LIME_CLK_133MHZ); + /* Delay required */ + udelay(300); + /* Set memory parameters */ + out_be32((void *)CFG_LIME_MMR, CFG_LIME_MMR_VALUE); + + mb862xx.winSizeX = DISPLAY_WIDTH; + mb862xx.winSizeY = DISPLAY_HEIGHT; + mb862xx.gdfIndex = GDF_15BIT_555RGB; + mb862xx.gdfBytesPP = 2; + + return CFG_LIME_BASE; +} + +#define W83782D_REG_CFG 0x40 +#define W83782D_REG_BANK_SEL 0x4e +#define W83782D_REG_ADCCLK 0x4b +#define W83782D_REG_BEEP_CTRL 0x4d +#define W83782D_REG_BEEP_CTRL2 0x57 +#define W83782D_REG_PWMOUT1 0x5b +#define W83782D_REG_VBAT 0x5d + +static int w83782d_hwmon_init(void) +{ + u8 buf; + + if (i2c_read(CFG_I2C_W83782G_ADDR, W83782D_REG_CFG, 1, &buf, 1)) + return -1; + + i2c_reg_write(CFG_I2C_W83782G_ADDR, W83782D_REG_CFG, 0x80); + i2c_reg_write(CFG_I2C_W83782G_ADDR, W83782D_REG_BANK_SEL, 0); + i2c_reg_write(CFG_I2C_W83782G_ADDR, W83782D_REG_ADCCLK, 0x40); + + buf = i2c_reg_read(CFG_I2C_W83782G_ADDR, W83782D_REG_BEEP_CTRL); + i2c_reg_write(CFG_I2C_W83782G_ADDR, W83782D_REG_BEEP_CTRL, + buf | 0x80); + i2c_reg_write(CFG_I2C_W83782G_ADDR, W83782D_REG_BEEP_CTRL2, 0); + i2c_reg_write(CFG_I2C_W83782G_ADDR, W83782D_REG_PWMOUT1, 0x47); + i2c_reg_write(CFG_I2C_W83782G_ADDR, W83782D_REG_VBAT, 0x01); + + buf = i2c_reg_read(CFG_I2C_W83782G_ADDR, W83782D_REG_CFG); + i2c_reg_write(CFG_I2C_W83782G_ADDR, W83782D_REG_CFG, + (buf & 0xf4) | 0x01); + return 0; +} + +static void board_backlight_brightness(int br) +{ + u32 reg; + u8 buf; + u8 old_buf; + + /* Select bank 0 */ + if (i2c_read(CFG_I2C_W83782G_ADDR, 0x4e, 1, &old_buf, 1)) + goto err; + else + buf = old_buf & 0xf8; + + if (i2c_write(CFG_I2C_W83782G_ADDR, 0x4e, 1, &buf, 1)) + goto err; + + if (br > 0) { + /* PWMOUT1 duty cycle ctrl */ + buf = 255 / (100 / br); + if (i2c_write(CFG_I2C_W83782G_ADDR, 0x5b, 1, &buf, 1)) + goto err; + + /* LEDs on */ + reg = in_be32((void *)(CFG_FPGA_BASE + 0x0c)); + if (!(reg & BACKLIGHT_ENABLE)); + out_be32((void *)(CFG_FPGA_BASE + 0x0c), + reg | BACKLIGHT_ENABLE); + } else { + buf = 0; + if (i2c_write(CFG_I2C_W83782G_ADDR, 0x5b, 1, &buf, 1)) + goto err; + + /* LEDs off */ + reg = in_be32((void *)(CFG_FPGA_BASE + 0x0c)); + reg &= ~BACKLIGHT_ENABLE; + out_be32((void *)(CFG_FPGA_BASE + 0x0c), reg); + } + /* Restore previous bank setting */ + if (i2c_write(CFG_I2C_W83782G_ADDR, 0x4e, 1, &old_buf, 1)) + goto err; + + return; +err: + printf("W83782G I2C access failed\n"); +} + +void board_backlight_switch (int flag) +{ + char * param; + int rc; + + if (w83782d_hwmon_init()) + printf ("hwmon IC init failed\n"); + + if (flag) { + param = getenv("brightness"); + rc = param ? simple_strtol(param, NULL, 10) : -1; + if (rc < 0) + rc = DEFAULT_BRIGHTNESS; + } else { + rc = 0; + } + board_backlight_brightness(rc); +} + +#if defined(CONFIG_CONSOLE_EXTRA_INFO) +/* + * Return text to be printed besides the logo. + */ +void video_get_info_str (int line_number, char *info) +{ + if (line_number == 1) { + strcpy (info, " Board: Socrates"); + } else { + info [0] = '\0'; + } +} +#endif |