Pyra: activate peripheral reset to bring tca6424 and is31fl96 into defined state

Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>

diff --git a/board/pandora/pyra+lc15/pyra+lc15.c b/board/pandora/pyra+lc15/pyra+lc15.c
index 50077f3..32ad2f5 100644 (file)
--- a/board/pandora/pyra+lc15/pyra+lc15.c
+++ b/board/pandora/pyra+lc15/pyra+lc15.c
@@ -148,7 +148,26 @@ int bq2429x_set_iinlim(int mA)
 int board_init(void)
 {
        int ilim;
-       board_init_overwritten();       /* do everything inherited from LC15 board */
+
+       /* do the same as on LC15 board/EVM */
+       gpmc_init();
+       gd->bd->bi_arch_number = MACH_TYPE_OMAP5_SEVM;
+       gd->bd->bi_boot_params = (0x80000000 + 0x100); /* boot param addr */
+
+#if 1
+       printk("reset peripherals\n");
+       /* but now reset peripherals */
+       gpio_request(144, "peripheral-reset");
+       gpio_direction_output(144, 0);  /* reset all peripheral chips (incl. tca6424) */
+       udelay(1000);   /* 1ms should suffice */
+       gpio_direction_output(144, 1);
+       gpio_free(144);
+       udelay(5000);   /* 5ms should suffice */
+#endif
+
+// UNDERSTAND ME: it is important that we program the bq2429x first before
+// we initialize the tca6424! Why? What is turned on and draws too much energy?
+
        if (bq24297_i2c_write_u8(0x05, 0x8a))
                printf("bq24297: could not turn off 40 sec watchdog\n");
        /* set bq24297 current limit to 2 A if we operate from no battery and 100 mA if we have */