int pmic_bus_init(void)
{
/* This cannot be 0 because it is used in SPL before BSS is ready */
static int needs_init = 1;
__maybe_unused int ret;
if (!needs_init)
return 0;
#if defined CONFIG_AXP221_POWER || defined CONFIG_AXP809_POWER || defined CONFIG_AXP818_POWER
# ifdef CONFIG_MACH_SUN6I
p2wi_init();
ret = p2wi_change_to_p2wi_mode(AXP221_CHIP_ADDR, AXP221_CTRL_ADDR,
AXP221_INIT_DATA);
# else
ret = rsb_init();
if (ret)
return ret;
ret = rsb_set_device_address(AXP223_DEVICE_ADDR, AXP223_RUNTIME_ADDR);
# endif
if (ret)
return ret;
#endif
needs_init = 0;
return 0;
}
static int init_func_pmubus(void)
{
tick_printf("pmbus: ");
#if defined(CONFIG_SUNXI_I2C)
i2c_init(CONFIG_SYS_I2C_SPEED,CONFIG_SYS_I2C_SLAVE);
#elif defined(CONFIG_SUNXI_P2WI)
p2wi_init();
#else
sunxi_rsb_init(0);
#endif
puts("ready\n");
return (0);
}
/*
* The axp221 uses the p2wi bus, the axp223 is identical (for all registers
* used sofar) but uses the rsb bus. These functions abstract this.
*/
static int pmic_bus_init(void)
{
#ifdef CONFIG_MACH_SUN6I
p2wi_init();
return p2wi_change_to_p2wi_mode(AXP221_CHIP_ADDR, AXP221_CTRL_ADDR,
AXP221_INIT_DATA);
#else
int ret;
rsb_init();
ret = rsb_set_device_mode(AXP223_DEVICE_MODE_DATA);
if (ret)
return ret;
return rsb_set_device_address(AXP223_DEVICE_ADDR, AXP223_RUNTIME_ADDR);
#endif
}
static int init_func_pmubus(void)
{
tick_printf("pmbus: ");
#if defined(CONFIG_SUNXI_I2C)
i2c_init(0, CONFIG_SYS_I2C_SPEED,CONFIG_SYS_I2C_SLAVE); //twi0
#if (defined(CONFIG_ARCH_HOMELET) && defined(CONFIG_ARCH_SUN9IW1P1))
i2c_init(1, CONFIG_SYS_I2C_SPEED,CONFIG_SYS_I2C_SLAVE); //twi1 for cvbs
#endif
#endif
#if defined(CONFIG_SUNXI_P2WI)
p2wi_init();
#endif
#if defined(CONFIG_SUNXI_RSB)
sunxi_rsb_init(0);
#endif
puts("ready\n");
return (0);
}