net2big_v2: initialize LEDs at startup

[people/ms/u-boot.git] / board / LaCie / net2big_v2 / net2big_v2.c

diff --git a/board/LaCie/net2big_v2/net2big_v2.c b/board/LaCie/net2big_v2/net2big_v2.c
index 6cca4fb31969bf617491756f42f0db16b5b48e25..b133f7cb3bde856143f133f9d06de4215d2d0ef7 100644 (file)
--- a/board/LaCie/net2big_v2/net2big_v2.c
+++ b/board/LaCie/net2big_v2/net2big_v2.c
@@ -30,6 +30,7 @@
 
 #include "net2big_v2.h"
 #include "../common/common.h"
+#include "../common/cpld-gpio-bus.h"
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -61,18 +62,18 @@ int board_early_init_f(void)
                MPP24_GPIO,             /* USB mode select */
                MPP26_GPIO,             /* USB device vbus */
                MPP28_GPIO,             /* USB enable host vbus */
-               MPP29_GPIO,             /* GPIO extension ALE */
+               MPP29_GPIO,             /* CPLD GPIO bus ALE */
                MPP34_GPIO,             /* Rear Push button 0=on 1=off */
                MPP35_GPIO,             /* Inhibit switch power-off */
                MPP36_GPIO,             /* SATA HDD1 presence */
                MPP37_GPIO,             /* SATA HDD2 presence */
                MPP40_GPIO,             /* eSATA presence */
-               MPP44_GPIO,             /* GPIO extension (data 0) */
-               MPP45_GPIO,             /* GPIO extension (data 1) */
-               MPP46_GPIO,             /* GPIO extension (data 2) */
-               MPP47_GPIO,             /* GPIO extension (addr 0) */
-               MPP48_GPIO,             /* GPIO extension (addr 1) */
-               MPP49_GPIO,             /* GPIO extension (addr 2) */
+               MPP44_GPIO,             /* CPLD GPIO bus (data 0) */
+               MPP45_GPIO,             /* CPLD GPIO bus (data 1) */
+               MPP46_GPIO,             /* CPLD GPIO bus (data 2) */
+               MPP47_GPIO,             /* CPLD GPIO bus (addr 0) */
+               MPP48_GPIO,             /* CPLD GPIO bus (addr 1) */
+               MPP49_GPIO,             /* CPLD GPIO bus (addr 2) */
                0
        };
 
@@ -143,6 +144,89 @@ err:
 static void init_fan(void) {}
 #endif /* CONFIG_CMD_I2C && CONFIG_SYS_I2C_G762_ADDR */
 
+#if defined(CONFIG_NET2BIG_V2) && defined(CONFIG_KIRKWOOD_GPIO)
+/*
+ * CPLD GPIO bus:
+ *
+ * - address register : bit [0-2] -> GPIO [47-49]
+ * - data register    : bit [0-2] -> GPIO [44-46]
+ * - enable register  : GPIO 29
+ */
+static unsigned cpld_gpio_bus_addr[] = { 47, 48, 49 };
+static unsigned cpld_gpio_bus_data[] = { 44, 45, 46 };
+
+static struct cpld_gpio_bus cpld_gpio_bus = {
+       .addr           = cpld_gpio_bus_addr,
+       .num_addr       = ARRAY_SIZE(cpld_gpio_bus_addr),
+       .data           = cpld_gpio_bus_data,
+       .num_data       = ARRAY_SIZE(cpld_gpio_bus_data),
+       .enable         = 29,
+};
+
+/*
+ * LEDs configuration:
+ *
+ * The LEDs are controlled by a CPLD and can be configured through
+ * the CPLD GPIO bus.
+ *
+ * Address register selection:
+ *
+ * addr | register
+ * ----------------------------
+ *   0  | front LED
+ *   1  | front LED brightness
+ *   2  | SATA LED brightness
+ *   3  | SATA0 LED
+ *   4  | SATA1 LED
+ *   5  | SATA2 LED
+ *   6  | SATA3 LED
+ *   7  | SATA4 LED
+ *
+ * Data register configuration:
+ *
+ * data | LED brightness
+ * -------------------------------------------------
+ *   0  | min (off)
+ *   -  | -
+ *   7  | max
+ *
+ * data | front LED mode
+ * -------------------------------------------------
+ *   0  | fix off
+ *   1  | fix blue on
+ *   2  | fix red on
+ *   3  | blink blue on=1 sec and blue off=1 sec
+ *   4  | blink red on=1 sec and red off=1 sec
+ *   5  | blink blue on=2.5 sec and red on=0.5 sec
+ *   6  | blink blue on=1 sec and red on=1 sec
+ *   7  | blink blue on=0.5 sec and blue off=2.5 sec
+ *
+ * data | SATA LED mode
+ * -------------------------------------------------
+ *   0  | fix off
+ *   1  | SATA activity blink
+ *   2  | fix red on
+ *   3  | blink blue on=1 sec and blue off=1 sec
+ *   4  | blink red on=1 sec and red off=1 sec
+ *   5  | blink blue on=2.5 sec and red on=0.5 sec
+ *   6  | blink blue on=1 sec and red on=1 sec
+ *   7  | fix blue on
+ */
+static void init_leds(void)
+{
+       /* Enable the front blue LED */
+       cpld_gpio_bus_write(&cpld_gpio_bus, 0, 1);
+       cpld_gpio_bus_write(&cpld_gpio_bus, 1, 3);
+
+       /* Configure SATA LEDs to blink in relation with the SATA activity */
+       cpld_gpio_bus_write(&cpld_gpio_bus, 3, 1);
+       cpld_gpio_bus_write(&cpld_gpio_bus, 4, 1);
+       cpld_gpio_bus_write(&cpld_gpio_bus, 2, 3);
+}
+#else
+static void init_leds(void) {}
+#endif /* CONFIG_NET2BIG_V2 && CONFIG_KIRKWOOD_GPIO */
+
 int misc_init_r(void)
 {
        init_fan();
@@ -153,6 +237,8 @@ int misc_init_r(void)
                        eth_setenv_enetaddr("ethaddr", mac);
        }
 #endif
+       init_leds();
+
        return 0;
 }
 #endif /* CONFIG_MISC_INIT_R */