check_cpu_temperature(1);
}
+#define LTC3676_BUCK1 0x01
+#define LTC3676_BUCK2 0x02
+#define LTC3676_BUCK3 0x03
+#define LTC3676_BUCK4 0x04
#define LTC3676_DVB2A 0x0C
#define LTC3676_DVB2B 0x0D
#define LTC3676_DVB4A 0x10
#define LTC3676_DVB4B 0x11
+#define LTC3676_CLIRQ 0x1f
#define VDD_SOC_mV (1375 + 50)
#define VDD_CORE_mV (1375 + 50)
+#define LTC3676_BUCK_DVDT_FAST (1 << 0)
+#define LTC3676_BUCK_KEEP_ALIVE (1 << 1)
+#define LTC3676_BUCK_CLK_RATE_LOW (1 << 2)
+#define LTC3676_BUCK_PHASE_SEL (1 << 3)
+#define LTC3676_BUCK_ENABLE_300 (1 << 4)
+#define LTC3676_BUCK_PULSE_SKIP (0 << 5)
+#define LTC3676_BUCK_BURST_MODE (1 << 5)
+#define LTC3676_BUCK_CONTINUOUS (2 << 5)
+#define LTC3676_BUCK_ENABLE (1 << 7)
+
+#define LTC3676_PGOOD_MASK (1 << 5)
+
#define mV_to_regval(mV) (((mV) * 360 / 330 - 825 + 1) / 25)
#define regval_to_mV(v) (((v) * 25 + 825) * 330 / 360)
+static struct pmic_regs {
+ u8 addr;
+ u8 val;
+} ltc3676_regs[] = {
+ { LTC3676_DVB2B, mV_to_regval(900) | LTC3676_PGOOD_MASK, },
+ { LTC3676_DVB4B, mV_to_regval(900) | LTC3676_PGOOD_MASK, },
+ { LTC3676_DVB2A, mV_to_regval(VDD_SOC_mV), },
+ { LTC3676_DVB4A, mV_to_regval(VDD_CORE_mV), },
+ { LTC3676_BUCK1, LTC3676_BUCK_BURST_MODE | LTC3676_BUCK_CLK_RATE_LOW, },
+ { LTC3676_BUCK2, LTC3676_BUCK_BURST_MODE | LTC3676_BUCK_CLK_RATE_LOW, },
+ { LTC3676_BUCK3, LTC3676_BUCK_BURST_MODE | LTC3676_BUCK_CLK_RATE_LOW, },
+ { LTC3676_BUCK4, LTC3676_BUCK_BURST_MODE | LTC3676_BUCK_CLK_RATE_LOW, },
+ { LTC3676_CLIRQ, 0, }, /* clear interrupt status */
+};
+
static int setup_pmic_voltages(void)
{
int ret;
unsigned char value;
-
- i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
+ int i;
ret = i2c_probe(CONFIG_SYS_I2C_SLAVE);
if (ret != 0) {
return ret;
}
- /* VDDCORE/VDDSOC default 1.375V is not enough, considering
- pfuze tolerance and IR drop and ripple, need increase
- to 1.425V for SabreSD */
-
- value = 0x39; /* VB default value & PGOOD not forced when slewing */
- ret = i2c_write(CONFIG_SYS_I2C_SLAVE, LTC3676_DVB2B, 1, &value, 1);
- if (ret) {
- printf("%s: failed to write PMIC DVB2B register: %d\n",
- __func__, ret);
- return ret;
- }
- ret = i2c_write(CONFIG_SYS_I2C_SLAVE, LTC3676_DVB4B, 1, &value, 1);
- if (ret) {
- printf("%s: failed to write PMIC DVB4B register: %d\n",
- __func__, ret);
- return ret;
- }
-
- value = mV_to_regval(VDD_SOC_mV);
- ret = i2c_write(CONFIG_SYS_I2C_SLAVE, LTC3676_DVB2A, 1, &value, 1);
- if (ret) {
- printf("%s: failed to write PMIC DVB2A register: %d\n",
- __func__, ret);
- return ret;
- }
- printf("VDDSOC set to %dmV\n", regval_to_mV(value));
-
- value = mV_to_regval(VDD_CORE_mV);
- ret = i2c_write(CONFIG_SYS_I2C_SLAVE, LTC3676_DVB4A, 1, &value, 1);
- if (ret) {
- printf("%s: failed to write PMIC DVB4A register: %d\n",
- __func__, ret);
- return ret;
+ for (i = 0; i < ARRAY_SIZE(ltc3676_regs); i++) {
+ ret = i2c_write(CONFIG_SYS_I2C_SLAVE, ltc3676_regs[i].addr, 1,
+ <c3676_regs[i].val, 1);
+ if (ret) {
+ printf("%s: failed to write PMIC register %02x: %d\n",
+ __func__, ltc3676_regs[i].addr, ret);
+ return ret;
+ }
}
- printf("VDDCORE set to %dmV\n", regval_to_mV(value));
+ printf("VDDCORE set to %dmV\n", VDD_CORE_mV);
+ printf("VDDSOC set to %dmV\n", VDD_SOC_mV);
return 0;
}
void lcd_ctrl_init(void *lcdbase)
{
int color_depth = 24;
- char *vm;
+ const char *video_mode = getenv("video_mode");
+ const char *vm;
unsigned long val;
int refresh = 60;
struct fb_videomode *p = &tx6_fb_modes[0];
if (tstc() || (wrsr & WRSR_TOUT)) {
debug("Disabling LCD\n");
lcd_enabled = 0;
+ setenv("splashimage", NULL);
return;
}
karo_fdt_move_fdt();
- vm = getenv("video_mode");
+ vm = karo_fdt_set_display(video_mode, "", "/soc/aips-bus/ldb");
if (vm == NULL) {
debug("Disabling LCD\n");
lcd_enabled = 0;
return;
}
+ video_mode = vm;
if (karo_fdt_get_fb_mode(working_fdt, vm, &fb_mode) == 0) {
p = &fb_mode;
debug("Using video mode from FDT\n");
vm += strlen(vm);
- if (fb_mode.xres < panel_info.vl_col)
- panel_info.vl_col = fb_mode.xres;
- if (fb_mode.yres < panel_info.vl_row)
- panel_info.vl_row = fb_mode.yres;
+ if (fb_mode.xres > panel_info.vl_col ||
+ fb_mode.yres > panel_info.vl_row) {
+ printf("video resolution from DT: %dx%d exceeds hardware limits: %dx%d\n",
+ fb_mode.xres, fb_mode.yres,
+ panel_info.vl_col, panel_info.vl_row);
+ lcd_enabled = 0;
+ return;
+ }
}
if (p->name != NULL)
debug("Trying compiled-in video modes\n");
printf("\n");
return;
}
+ if (p->xres > panel_info.vl_col || p->yres > panel_info.vl_row) {
+ printf("video resolution: %dx%d exceeds hardware limits: %dx%d\n",
+ p->xres, p->yres, panel_info.vl_col, panel_info.vl_row);
+ lcd_enabled = 0;
+ return;
+ }
+ panel_info.vl_col = p->xres;
+ panel_info.vl_row = p->yres;
+
+ switch (color_depth) {
+ case 8:
+ panel_info.vl_bpix = LCD_COLOR8;
+ break;
+ case 16:
+ panel_info.vl_bpix = LCD_COLOR16;
+ break;
+ default:
+ panel_info.vl_bpix = LCD_COLOR24;
+ }
p->pixclock = KHZ2PICOS(refresh *
(p->xres + p->left_margin + p->right_margin + p->hsync_len) *
if (p != &fb_mode) {
int ret;
- char *modename = getenv("video_mode");
- printf("Creating new display-timing node from '%s'\n",
- modename);
- ret = karo_fdt_create_fb_mode(working_fdt, modename, p);
+ debug("Creating new display-timing node from '%s'\n",
+ video_mode);
+ ret = karo_fdt_create_fb_mode(working_fdt, video_mode, p);
if (ret)
printf("Failed to create new display-timing node from '%s': %d\n",
- modename, ret);
+ video_mode, ret);
}
gpio_request_array(stk5_lcd_gpios, ARRAY_SIZE(stk5_lcd_gpios));
tx6qdl_print_cpuinfo();
- printf("Board: Ka-Ro TX6%c-%dxx%d\n",
+ printf("Board: Ka-Ro TX6%c-%dx1%d\n",
cpu_variant == MXC_CPU_MX6Q ? 'Q' : 'U',
cpu_variant == MXC_CPU_MX6Q ? 1 : 8,
1 - PHYS_SDRAM_1_WIDTH / 64);
#define fdt_fixup_mtdparts(b,n,c) do { } while (0)
#endif
-static int flexcan_enabled(void *blob)
-{
- const char *can_ifs[] = {
- "can0",
- "can1",
- };
- size_t i;
-
- for (i = 0; i < ARRAY_SIZE(can_ifs); i++) {
- const char *status;
- int off = fdt_path_offset(blob, can_ifs[i]);
-
- if (off < 0) {
- debug("node '%s' not found\n", can_ifs[i]);
- continue;
- }
- status = fdt_getprop(blob, off, "status", NULL);
- if (strcmp(status, "okay") == 0) {
- debug("%s is enabled\n", can_ifs[i]);
- return 1;
- }
- }
- debug("can driver is disabled\n");
- return 0;
-}
-
-static void tx6qdl_set_lcd_pins(void *blob, const char *name)
-{
- int off = fdt_path_offset(blob, name);
- u32 ph;
- const struct fdt_property *pc;
- int len;
-
- if (off < 0)
- return;
-
- ph = fdt_create_phandle(blob, off);
- if (!ph)
- return;
-
- off = fdt_path_offset(blob, "display");
- if (off < 0)
- return;
-
- pc = fdt_get_property(blob, off, "pinctrl-0", &len);
- if (!pc || len < sizeof(ph))
- return;
-
- memcpy((void *)pc->data, &ph, sizeof(ph));
- fdt_setprop_cell(blob, off, "pinctrl-0", ph);
-}
-
-static void tx6qdl_fixup_flexcan(void *blob, int stk5_v5)
-{
- const char *xcvr_status = "disabled";
-
- if (stk5_v5) {
- if (flexcan_enabled(blob)) {
- tx6qdl_set_lcd_pins(blob, "lcdif_23bit_pins_a");
- xcvr_status = "okay";
- } else {
- tx6qdl_set_lcd_pins(blob, "lcdif_24bit_pins_a");
- }
- } else {
- const char *otg_mode = getenv("otg_mode");
-
- if (otg_mode && (strcmp(otg_mode, "host") == 0))
- karo_fdt_enable_node(blob, "can1", 0);
-
- tx6qdl_set_lcd_pins(blob, "lcdif_24bit_pins_a");
- }
- fdt_find_and_setprop(blob, "/regulators/can-xcvr", "status",
- xcvr_status, strlen(xcvr_status) + 1, 1);
-}
-
void ft_board_setup(void *blob, bd_t *bd)
{
const char *baseboard = getenv("baseboard");
int stk5_v5 = baseboard != NULL && (strcmp(baseboard, "stk5-v5") == 0);
+ const char *video_mode = getenv("video_mode");
karo_fdt_enable_node(blob, "stk5led", !stk5_v5);
karo_fdt_fixup_touchpanel(blob);
karo_fdt_fixup_usb_otg(blob, "usbotg", "fsl,usbphy");
- tx6qdl_fixup_flexcan(blob, stk5_v5);
- karo_fdt_update_fb_mode(blob, getenv("video_mode"));
+ karo_fdt_fixup_flexcan(blob, stk5_v5);
+
+ video_mode = karo_fdt_set_display(video_mode, "", "/soc/aips-bus/ldb");
+ karo_fdt_update_fb_mode(blob, video_mode);
}
-#endif
+#endif /* CONFIG_OF_BOARD_SETUP */
projects / karo-tx-uboot.git / blobdiff