mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-06-09 23:36:03 +09:00
20e442ab2d
The current macro is a misnomer since it does not declare a device directly. Instead, it declares driver_info record which U-Boot uses at runtime to create a device. The distinction seems somewhat minor most of the time, but is becomes quite confusing when we actually want to declare a device, with of-platdata. We are left trying to distinguish between a device which isn't actually device, and a device that is (perhaps an 'instance'?) It seems better to rename this macro to describe what it actually is. The macros is not widely used, since boards should use devicetree to declare devices. Rename it to U_BOOT_DRVINFO(), which indicates clearly that this is declaring a new driver_info record, not a device. Signed-off-by: Simon Glass <sjg@chromium.org>
142 lines
3.5 KiB
C
142 lines
3.5 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2011 by Vladimir Zapolskiy <vz@mleia.com>
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*/
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#include <common.h>
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#include <dm.h>
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#include <ns16550.h>
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#include <dm/platform_data/lpc32xx_hsuart.h>
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#include <asm/arch/clk.h>
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#include <asm/arch/uart.h>
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#include <asm/arch/mux.h>
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#include <asm/io.h>
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static struct clk_pm_regs *clk = (struct clk_pm_regs *)CLK_PM_BASE;
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static struct uart_ctrl_regs *ctrl = (struct uart_ctrl_regs *)UART_CTRL_BASE;
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static struct mux_regs *mux = (struct mux_regs *)MUX_BASE;
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void lpc32xx_uart_init(unsigned int uart_id)
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{
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if (uart_id < 1 || uart_id > 7)
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return;
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/* Disable loopback mode, if it is set by S1L bootloader */
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clrbits_le32(&ctrl->loop,
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UART_LOOPBACK(CONFIG_SYS_LPC32XX_UART));
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if (uart_id < 3 || uart_id > 6)
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return;
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/* Enable UART system clock */
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setbits_le32(&clk->uartclk_ctrl, CLK_UART(uart_id));
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/* Set UART into autoclock mode */
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clrsetbits_le32(&ctrl->clkmode,
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UART_CLKMODE_MASK(uart_id),
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UART_CLKMODE_AUTO(uart_id));
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/* Bypass pre-divider of UART clock */
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writel(CLK_UART_X_DIV(1) | CLK_UART_Y_DIV(1),
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&clk->u3clk + (uart_id - 3));
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}
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#if !CONFIG_IS_ENABLED(OF_CONTROL)
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static const struct ns16550_plat lpc32xx_uart[] = {
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{ .base = UART3_BASE, .reg_shift = 2,
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.clock = CONFIG_SYS_NS16550_CLK, .fcr = UART_FCR_DEFVAL, },
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{ .base = UART4_BASE, .reg_shift = 2,
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.clock = CONFIG_SYS_NS16550_CLK, .fcr = UART_FCR_DEFVAL, },
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{ .base = UART5_BASE, .reg_shift = 2,
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.clock = CONFIG_SYS_NS16550_CLK, .fcr = UART_FCR_DEFVAL, },
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{ .base = UART6_BASE, .reg_shift = 2,
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.clock = CONFIG_SYS_NS16550_CLK, .fcr = UART_FCR_DEFVAL, },
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};
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#if defined(CONFIG_LPC32XX_HSUART)
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static const struct lpc32xx_hsuart_plat lpc32xx_hsuart[] = {
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{ HS_UART1_BASE, },
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{ HS_UART2_BASE, },
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{ HS_UART7_BASE, },
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};
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#endif
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U_BOOT_DRVINFOS(lpc32xx_uarts) = {
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#if defined(CONFIG_LPC32XX_HSUART)
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{ "lpc32xx_hsuart", &lpc32xx_hsuart[0], },
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{ "lpc32xx_hsuart", &lpc32xx_hsuart[1], },
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#endif
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{ "ns16550_serial", &lpc32xx_uart[0], },
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{ "ns16550_serial", &lpc32xx_uart[1], },
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{ "ns16550_serial", &lpc32xx_uart[2], },
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{ "ns16550_serial", &lpc32xx_uart[3], },
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#if defined(CONFIG_LPC32XX_HSUART)
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{ "lpc32xx_hsuart", &lpc32xx_hsuart[2], },
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#endif
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};
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#endif
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void lpc32xx_dma_init(void)
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{
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/* Enable DMA interface */
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writel(CLK_DMA_ENABLE, &clk->dmaclk_ctrl);
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}
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void lpc32xx_mac_init(void)
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{
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/* Enable MAC interface */
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writel(CLK_MAC_REG | CLK_MAC_SLAVE | CLK_MAC_MASTER
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#if defined(CONFIG_RMII)
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| CLK_MAC_RMII,
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#else
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| CLK_MAC_MII,
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#endif
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&clk->macclk_ctrl);
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}
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void lpc32xx_mlc_nand_init(void)
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{
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/* Enable NAND interface */
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writel(CLK_NAND_MLC | CLK_NAND_MLC_INT, &clk->flashclk_ctrl);
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}
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void lpc32xx_slc_nand_init(void)
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{
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/* Enable SLC NAND interface */
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writel(CLK_NAND_SLC | CLK_NAND_SLC_SELECT, &clk->flashclk_ctrl);
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}
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void lpc32xx_usb_init(void)
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{
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/* Do not route the UART 5 Tx/Rx pins to the USB D+ and USB D- pins. */
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clrbits_le32(&ctrl->ctrl, UART_CTRL_UART5_USB_MODE);
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}
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void lpc32xx_i2c_init(unsigned int devnum)
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{
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/* Enable I2C interface */
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uint32_t ctrl = readl(&clk->i2cclk_ctrl);
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if (devnum == 1)
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ctrl |= CLK_I2C1_ENABLE;
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if (devnum == 2)
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ctrl |= CLK_I2C2_ENABLE;
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writel(ctrl, &clk->i2cclk_ctrl);
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}
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U_BOOT_DRVINFO(lpc32xx_gpios) = {
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.name = "gpio_lpc32xx"
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};
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/* Mux for SCK0, MISO0, MOSI0. We do not use SSEL0. */
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#define P_MUX_SET_SSP0 0x1600
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void lpc32xx_ssp_init(void)
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{
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/* Enable SSP0 interface */
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writel(CLK_SSP0_ENABLE_CLOCK, &clk->ssp_ctrl);
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/* Mux SSP0 pins */
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writel(P_MUX_SET_SSP0, &mux->p_mux_set);
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}
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