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authorSimon Guinot <simon.guinot@sequanux.org>2013-06-18 15:14:50 +0200
committerPrafulla Wadaskar <prafulla@marvell.com>2013-06-20 14:01:23 +0530
commit7737c994609ffb50194d5ddb67467ae0fcd8f775 (patch)
tree4661c56d436b75f323a1d9e7a4758483bd1519b3
parentd5cc3f524193d6e7ab980b5962bec72576e61551 (diff)
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net2big_v2: initialize LEDs at startup
This patch allows to configure the net2big_v2 LEDs at startup (through the GPIO extension bus). The front blue LED is enabled and the SATA rear LEDs are configured to blink in relation with the SATA activity. Signed-off-by: Simon Guinot <simon.guinot@sequanux.org>
-rw-r--r--board/LaCie/net2big_v2/Makefile3
-rw-r--r--board/LaCie/net2big_v2/net2big_v2.c100
2 files changed, 96 insertions, 7 deletions
diff --git a/board/LaCie/net2big_v2/Makefile b/board/LaCie/net2big_v2/Makefile
index fbae48e..9a6dfb6 100644
--- a/board/LaCie/net2big_v2/Makefile
+++ b/board/LaCie/net2big_v2/Makefile
@@ -28,6 +28,9 @@ endif
LIB = $(obj)lib$(BOARD).o
COBJS := $(BOARD).o ../common/common.o
+ifneq ($(and $(CONFIG_KIRKWOOD_GPIO),$(CONFIG_NET2BIG_V2)),)
+COBJS += ../common/cpld-gpio-bus.o
+endif
SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c)
OBJS := $(addprefix $(obj),$(COBJS))
diff --git a/board/LaCie/net2big_v2/net2big_v2.c b/board/LaCie/net2big_v2/net2big_v2.c
index 6cca4fb..b133f7c 100644
--- 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 */