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Diffstat (limited to 'board/socrates/socrates.c')
-rw-r--r--board/socrates/socrates.c198
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