UART4
LPC32XX_DEFINE_COMPOSITE(UART4, UART4_MUX, UART4_DIV, UART4_GATE),
LPC32XX_CLK_DEFINE(UART4, "uart4", CLK_GET_RATE_NOCACHE,
PCLK(UART4, "uart4", "pclk1", 0, G_UART4),