s5pc210: support fsa9480

Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>

diff --git a/arch/arm/include/asm/arch-s5pc2xx/power.h b/arch/arm/include/asm/arch-s5pc2xx/power.h
index 7d92f94..cdfb4b8 100644 (file)
--- a/arch/arm/include/asm/arch-s5pc2xx/power.h
+++ b/arch/arm/include/asm/arch-s5pc2xx/power.h
@@ -22,4 +22,36 @@
 #ifndef __ASM_ARM_ARCH_POWER_H_
 #define __ASM_ARM_ARCH_POWER_H_
 
+#ifndef __ASSEMBLY__
+enum reset_status {
+       EXTRESET,
+       WARMRESET,
+       WDTRESET,
+       SWRESET,
+};
+
+#define RESET_SW               (0x1 << 29)
+#define RESET_WARM             (0x1 << 28)
+#define RESET_WDT              (0x1 << 20)
+#define RESET_PIN              (0x1 << 16)
+
+static int get_reset_status(void)
+{
+       unsigned int val;
+
+       val = readl(S5PC210_POWER_BASE + 0x404);
+
+       if (val & RESET_SW)
+               return SWRESET;
+       else if (val & RESET_WARM)
+               return WARMRESET;
+       else if (val & RESET_WDT)
+               return WDTRESET;
+       else if (val & RESET_PIN)
+               return EXTRESET;
+
+       return -1;
+}
+#endif
+
 #endif

diff --git a/board/samsung/universal_c210/universal.c b/board/samsung/universal_c210/universal.c
index ded9e00..5ca0add 100644 (file)
--- a/board/samsung/universal_c210/universal.c
+++ b/board/samsung/universal_c210/universal.c
@@ -26,10 +26,11 @@
 #include <i2c.h>
 #include <lcd.h>
 #include <asm/io.h>
-#include <asm/arch/clock.h>
 #include <asm/arch/adc.h>
+#include <asm/arch/clock.h>
 #include <asm/arch/gpio.h>
 #include <asm/arch/mmc.h>
+#include <asm/arch/power.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -143,6 +144,7 @@ static struct i2c_gpio_bus i2c_gpio[] = {
 };
 
 static void check_battery(int mode);
+static void check_micro_usb(int intr);
 
 void i2c_init_board(void)
 {
@@ -164,6 +166,8 @@ void i2c_init_board(void)
 
        i2c_gpio_init(i2c_gpio, num_bus, I2C_5);
 
+       /* Reset on fsa9480 early */
+       check_micro_usb(1);
        /* Reset on max17040 early */
        if (battery_soc == 0)
                check_battery(1);
@@ -271,6 +275,111 @@ static void check_battery(int mode)
        }
 }
 
+static int fsa9480_probe(void)
+{
+       unsigned char addr = 0x25;
+
+       i2c_set_bus_num(I2C_10);
+
+       if (i2c_probe(addr)) {
+               puts("Can't found fsa9480\n");
+               return 1;
+       }
+
+       return 0;
+}
+
+static void check_micro_usb(int intr)
+{
+       unsigned char addr;
+       unsigned char val[2];
+       static int started_charging_once = 0;
+       char *path;
+
+       if (fsa9480_probe())
+               return;
+
+       addr = 0x25;    /* fsa9480 */
+
+       /* Clear Interrupt */
+       if (intr) {
+               i2c_read(addr, 0x03, 1, val, 2);
+               return;
+       }
+
+       /* Read Device Type 1 */
+       i2c_read(addr, 0x0a, 1, val, 1);
+
+#define FSA_DEV1_CHARGER       (1 << 6)
+#define FSA_DEV1_UART          (1 << 3)
+#define FSA_DEV1_USB           (1 << 2)
+#define FSA_DEV2_JIG_USB_OFF   (1 << 1)
+#define FSA_DEV2_JIG_USB_ON    (1 << 0)
+
+#if 0
+       /* disable the charger related feature */
+       /*
+        * If USB, use default 475mA
+        * If Charger, use 600mA and go to charge mode
+        */
+       if ((val[0] & FSA_DEV1_CHARGER) && !started_charging_once) {
+               started_charging_once = 1;
+
+               /* If it's full, do not charge. */
+               if (battery_soc < 100)
+                       into_charge_mode();
+               else
+                       charger_en(0);
+       } else if (val[0] & FSA_DEV1_USB) {
+               if (battery_soc < 100)
+                       charger_en(475); /* enable charger and keep booting */
+               else
+                       charger_en(0);
+       }
+#endif
+
+       /* If reset status is watchdog reset then skip it */
+       if (get_reset_status() != WDTRESET) {
+               /* If Factory Mode is Boot ON-USB, go to download mode */
+               i2c_read(addr, 0x07, 1, val, 1);
+
+#define FSA_ADC_FAC_USB_OFF    0x18
+#define FSA_ADC_FAC_USB_ON     0x19
+#define FSA_ADC_FAC_UART       0x1d
+
+               if (val[0] == FSA_ADC_FAC_USB_ON ||
+                       val[0] == FSA_ADC_FAC_USB_OFF)
+                       setenv("bootcmd", "usbdown");
+       }
+
+       path = getenv("usb");
+
+       if (!strncmp(path, "cp", 2))
+               run_command("microusb cp", 0);
+}
+
+static void micro_usb_switch(int path)
+{
+       unsigned char addr;
+       unsigned char val[2];
+
+       if (fsa9480_probe())
+               return;
+
+       addr = 0x25;            /* fsa9480 */
+
+       if (path)
+               val[0] = 0x90;  /* VAUDIO */
+       else
+               val[0] = (1 << 5) | (1 << 2);   /* DHOST */
+
+       i2c_write(addr, 0x13, 1, val, 1);       /* MANSW1 */
+
+       i2c_read(addr, 0x2, 1, val, 1);
+       val[0] &= ~(1 << 2);                    /* Manual switching */
+       i2c_write(addr, 0x2, 1, val, 1);
+}
+
 #define LP3974_REG_ONOFF1      0x11
 #define LP3974_REG_ONOFF2      0x12
 #define LP3974_REG_ONOFF3      0x13
@@ -671,6 +780,9 @@ int misc_init_r(void)
        /* check max17040 */
        check_battery(0);
 
+       /* check fsa9480 */
+       check_micro_usb(0);
+
        return 0;
 }
 #endif
@@ -898,3 +1010,37 @@ U_BOOT_CMD(
 );
 #endif
 
+#ifdef CONFIG_CMD_DEVICE_POWER
+static int do_microusb(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
+{
+       switch (argc) {
+       case 2:
+               if (strncmp(argv[1], "cp", 2) == 0) {
+                       micro_usb_switch(1);
+                       pmic_ldo_control(0, 0, 2, 1);
+                       setenv("usb", "cp");
+               } else if (strncmp(argv[1], "ap", 2) == 0) {
+                       micro_usb_switch(0);
+                       pmic_ldo_control(0, 0, 2, 0);
+                       setenv("usb", "ap");
+               }
+               break;
+       default:
+               cmd_usage(cmdtp);
+               return 1;
+       }
+
+       saveenv();
+
+       printf("USB Path is set to %s\n", getenv("usb"));
+
+       return 0;
+}
+
+U_BOOT_CMD(
+       microusb,               CONFIG_SYS_MAXARGS,     1, do_microusb,
+       "Micro USB Switch",
+       "cp - switch to CP\n"
+       "microusb ap - switch to AP\n"
+);
+#endif