u-boot porting

Template File: 5

File Name: board/ti/am335x/mux.c

-> This file do pin muxing of uart0 to uart5, I2C0 & I2C1, MMC0 & MMC1, NAND muxing.


static struct module_pin_mux uart1_pin_mux[] = {
        {OFFSET(uart1_rxd), (MODE(0) | PULLUP_EN | RXACTIVE)},  /* UART1_RXD */
        {OFFSET(uart1_txd), (MODE(0) | PULLUDEN)},              /* UART1_TXD */
        {-1},
};

static struct module_pin_mux uart2_pin_mux[] = {
        {OFFSET(spi0_sclk), (MODE(1) | PULLUP_EN | RXACTIVE)},  /* UART2_RXD */
        {OFFSET(spi0_d0), (MODE(1) | PULLUDEN)},                /* UART2_TXD */
        {-1},
};

static struct module_pin_mux uart3_pin_mux[] = {
        {OFFSET(spi0_cs1), (MODE(1) | PULLUP_EN | RXACTIVE)},   /* UART3_RXD */
        {OFFSET(ecap0_in_pwm0_out), (MODE(1) | PULLUDEN)},      /* UART3_TXD */
        {-1},
};

static struct module_pin_mux uart4_pin_mux[] = {
        {OFFSET(gpmc_wait0), (MODE(6) | PULLUP_EN | RXACTIVE)}, /* UART4_RXD */
        {OFFSET(gpmc_wpn), (MODE(6) | PULLUDEN)},               /* UART4_TXD */
        {-1},
};

static struct module_pin_mux uart5_pin_mux[] = {
        {OFFSET(lcd_data9), (MODE(4) | PULLUP_EN | RXACTIVE)},  /* UART5_RXD */
        {OFFSET(lcd_data8), (MODE(4) | PULLUDEN)},              /* UART5_TXD */
        {-1},
};



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void enable_uart0_pin_mux(void)
{
        configure_module_pin_mux(uart0_pin_mux);
}

void enable_uart1_pin_mux(void)
{
        configure_module_pin_mux(uart1_pin_mux);
}

void enable_uart2_pin_mux(void)
{
        configure_module_pin_mux(uart2_pin_mux);
}

void enable_uart3_pin_mux(void)
{
        configure_module_pin_mux(uart3_pin_mux);
}
void enable_uart4_pin_mux(void)
{
        configure_module_pin_mux(uart4_pin_mux);
}

void enable_uart5_pin_mux(void)
{
        configure_module_pin_mux(uart5_pin_mux);
}

void enable_i2c0_pin_mux(void)
{
        configure_module_pin_mux(i2c0_pin_mux);
}


->This file takes care of inital pin muxing of basic devices like
uart, I2C, MMC, NAND, GPMC.