aboutsummaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-ux500/board-u5500.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm/mach-ux500/board-u5500.c')
-rw-r--r--arch/arm/mach-ux500/board-u5500.c115
1 files changed, 112 insertions, 3 deletions
diff --git a/arch/arm/mach-ux500/board-u5500.c b/arch/arm/mach-ux500/board-u5500.c
index 44fd3b5..82025ba 100644
--- a/arch/arm/mach-ux500/board-u5500.c
+++ b/arch/arm/mach-ux500/board-u5500.c
@@ -8,17 +8,122 @@
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/amba/bus.h>
-#include <linux/gpio.h>
#include <linux/irq.h>
+#include <linux/i2c.h>
+#include <linux/mfd/ab5500/ab5500.h>
#include <asm/mach/arch.h>
#include <asm/mach-types.h>
+#include <plat/pincfg.h>
+#include <plat/i2c.h>
+#include <plat/gpio-nomadik.h>
+
#include <mach/hardware.h>
#include <mach/devices.h>
#include <mach/setup.h>
+#include "pins-db5500.h"
#include "devices-db5500.h"
+#include <linux/led-lm3530.h>
+
+/*
+ * GPIO
+ */
+
+static pin_cfg_t u5500_pins[] = {
+ /* I2C */
+ GPIO218_I2C2_SCL | PIN_INPUT_PULLUP,
+ GPIO219_I2C2_SDA | PIN_INPUT_PULLUP,
+
+ /* DISPLAY_ENABLE */
+ GPIO226_GPIO | PIN_OUTPUT_LOW,
+
+ /* Backlight Enbale */
+ GPIO224_GPIO | PIN_OUTPUT_HIGH,
+};
+/*
+ * I2C
+ */
+
+#define U5500_I2C_CONTROLLER(id, _slsu, _tft, _rft, clk, _sm) \
+static struct nmk_i2c_controller u5500_i2c##id##_data = { \
+ /* \
+ * slave data setup time, which is \
+ * 250 ns,100ns,10ns which is 14,6,2 \
+ * respectively for a 48 Mhz \
+ * i2c clock \
+ */ \
+ .slsu = _slsu, \
+ /* Tx FIFO threshold */ \
+ .tft = _tft, \
+ /* Rx FIFO threshold */ \
+ .rft = _rft, \
+ /* std. mode operation */ \
+ .clk_freq = clk, \
+ .sm = _sm, \
+}
+/*
+ * The board uses TODO <3> i2c controllers, initialize all of
+ * them with slave data setup time of 250 ns,
+ * Tx & Rx FIFO threshold values as 1 and standard
+ * mode of operation
+ */
+
+U5500_I2C_CONTROLLER(2, 0xe, 1, 1, 400000, I2C_FREQ_MODE_FAST);
+
+static struct lm3530_platform_data u5500_als_platform_data = {
+ .mode = LM3530_BL_MODE_MANUAL,
+ .als_input_mode = LM3530_INPUT_ALS1,
+ .max_current = LM3530_FS_CURR_26mA,
+ .pwm_pol_hi = true,
+ .als_avrg_time = LM3530_ALS_AVRG_TIME_512ms,
+ .brt_ramp_law = 1, /* Linear */
+ .brt_ramp_fall = LM3530_RAMP_TIME_8s,
+ .brt_ramp_rise = LM3530_RAMP_TIME_8s,
+ .als1_resistor_sel = LM3530_ALS_IMPD_13_53kOhm,
+ .als2_resistor_sel = LM3530_ALS_IMPD_Z,
+ .als_vmin = 730, /* mV */
+ .als_vmax = 1020, /* mV */
+ .brt_val = 0x7F, /* Max brightness */
+};
+
+static struct i2c_board_info __initdata u5500_i2c2_devices[] = {
+ {
+ /* Backlight */
+ I2C_BOARD_INFO("lm3530-led", 0x36),
+ .platform_data = &u5500_als_platform_data,
+ },
+};
+
+static void __init u5500_i2c_init(void)
+{
+ db5500_add_i2c2(&u5500_i2c2_data);
+ i2c_register_board_info(2, ARRAY_AND_SIZE(u5500_i2c2_devices));
+}
+
+static struct ab5500_platform_data ab5500_plf_data = {
+ .irq = {
+ .base = 0,
+ .count = 0,
+ },
+ .init_settings = NULL,
+ .init_settings_sz = 0,
+ .pm_power_off = false,
+};
+
+static struct platform_device ab5500_device = {
+ .name = "ab5500-core",
+ .id = 0,
+ .dev = {
+ .platform_data = &ab5500_plf_data,
+ },
+ .num_resources = 0,
+};
+
+static struct platform_device *u5500_platform_devices[] __initdata = {
+ &ab5500_device,
+};
static void __init u5500_uart_init(void)
{
@@ -30,13 +135,17 @@ static void __init u5500_uart_init(void)
static void __init u5500_init_machine(void)
{
u5500_init_devices();
-
+ nmk_config_pins(u5500_pins, ARRAY_SIZE(u5500_pins));
+ u5500_i2c_init();
u5500_sdi_init();
u5500_uart_init();
+
+ platform_add_devices(u5500_platform_devices,
+ ARRAY_SIZE(u5500_platform_devices));
}
MACHINE_START(U5500, "ST-Ericsson U5500 Platform")
- .boot_params = 0x00000100,
+ .atag_offset = 0x100,
.map_io = u5500_map_io,
.init_irq = ux500_init_irq,
.timer = &ux500_timer,