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- /*
- * Copyright (C) 2011 by Vladimir Zapolskiy <vz@mleia.com>
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
- #include <common.h>
- #include <asm/arch/cpu.h>
- #include <asm/arch/clk.h>
- #include <asm/arch/uart.h>
- #include <asm/arch/mux.h>
- #include <asm/io.h>
- #include <dm.h>
- static struct clk_pm_regs *clk = (struct clk_pm_regs *)CLK_PM_BASE;
- static struct uart_ctrl_regs *ctrl = (struct uart_ctrl_regs *)UART_CTRL_BASE;
- static struct mux_regs *mux = (struct mux_regs *)MUX_BASE;
- void lpc32xx_uart_init(unsigned int uart_id)
- {
- if (uart_id < 1 || uart_id > 7)
- return;
- /* Disable loopback mode, if it is set by S1L bootloader */
- clrbits_le32(&ctrl->loop,
- UART_LOOPBACK(CONFIG_SYS_LPC32XX_UART));
- if (uart_id < 3 || uart_id > 6)
- return;
- /* Enable UART system clock */
- setbits_le32(&clk->uartclk_ctrl, CLK_UART(uart_id));
- /* Set UART into autoclock mode */
- clrsetbits_le32(&ctrl->clkmode,
- UART_CLKMODE_MASK(uart_id),
- UART_CLKMODE_AUTO(uart_id));
- /* Bypass pre-divider of UART clock */
- writel(CLK_UART_X_DIV(1) | CLK_UART_Y_DIV(1),
- &clk->u3clk + (uart_id - 3));
- }
- void lpc32xx_mac_init(void)
- {
- /* Enable MAC interface */
- writel(CLK_MAC_REG | CLK_MAC_SLAVE | CLK_MAC_MASTER
- #if defined(CONFIG_RMII)
- | CLK_MAC_RMII,
- #else
- | CLK_MAC_MII,
- #endif
- &clk->macclk_ctrl);
- }
- void lpc32xx_mlc_nand_init(void)
- {
- /* Enable NAND interface */
- writel(CLK_NAND_MLC | CLK_NAND_MLC_INT, &clk->flashclk_ctrl);
- }
- void lpc32xx_slc_nand_init(void)
- {
- /* Enable SLC NAND interface */
- writel(CLK_NAND_SLC | CLK_NAND_SLC_SELECT, &clk->flashclk_ctrl);
- }
- void lpc32xx_i2c_init(unsigned int devnum)
- {
- /* Enable I2C interface */
- uint32_t ctrl = readl(&clk->i2cclk_ctrl);
- if (devnum == 1)
- ctrl |= CLK_I2C1_ENABLE;
- if (devnum == 2)
- ctrl |= CLK_I2C2_ENABLE;
- writel(ctrl, &clk->i2cclk_ctrl);
- }
- U_BOOT_DEVICE(lpc32xx_gpios) = {
- .name = "gpio_lpc32xx"
- };
- /* Mux for SCK0, MISO0, MOSI0. We do not use SSEL0. */
- #define P_MUX_SET_SSP0 0x1600
- void lpc32xx_ssp_init(void)
- {
- /* Enable SSP0 interface */
- writel(CLK_SSP0_ENABLE_CLOCK, &clk->ssp_ctrl);
- /* Mux SSP0 pins */
- writel(P_MUX_SET_SSP0, &mux->p_mux_set);
- }
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