+// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2012 Michal Simek <monstr@monstr.eu>
* Copyright (C) 2011-2012 Xilinx, Inc. All rights reserved.
- *
- * SPDX-License-Identifier: GPL-2.0+
*/
+#include <clk.h>
#include <common.h>
#include <debug_uart.h>
#include <dm.h>
#include <asm/io.h>
#include <linux/compiler.h>
#include <serial.h>
-#include <asm/arch/clk.h>
-#include <asm/arch/hardware.h>
DECLARE_GLOBAL_DATA_PTR;
-#define ZYNQ_UART_SR_TXFULL 0x00000010 /* TX FIFO full */
-#define ZYNQ_UART_SR_TXACTIVE (1 << 11) /* TX active */
-#define ZYNQ_UART_SR_RXEMPTY 0x00000002 /* RX FIFO empty */
+#define ZYNQ_UART_SR_TXACTIVE BIT(11) /* TX active */
+#define ZYNQ_UART_SR_TXFULL BIT(4) /* TX FIFO full */
+#define ZYNQ_UART_SR_RXEMPTY BIT(1) /* RX FIFO empty */
-#define ZYNQ_UART_CR_TX_EN 0x00000010 /* TX enabled */
-#define ZYNQ_UART_CR_RX_EN 0x00000004 /* RX enabled */
-#define ZYNQ_UART_CR_TXRST 0x00000002 /* TX logic reset */
-#define ZYNQ_UART_CR_RXRST 0x00000001 /* RX logic reset */
+#define ZYNQ_UART_CR_TX_EN BIT(4) /* TX enabled */
+#define ZYNQ_UART_CR_RX_EN BIT(2) /* RX enabled */
+#define ZYNQ_UART_CR_TXRST BIT(1) /* TX logic reset */
+#define ZYNQ_UART_CR_RXRST BIT(0) /* RX logic reset */
#define ZYNQ_UART_MR_PARITY_NONE 0x00000020 /* No parity mode */
return 0;
}
-int zynq_serial_setbrg(struct udevice *dev, int baudrate)
+static int zynq_serial_setbrg(struct udevice *dev, int baudrate)
{
struct zynq_uart_priv *priv = dev_get_priv(dev);
- unsigned long clock = get_uart_clk(0);
+ unsigned long clock;
+
+ int ret;
+ struct clk clk;
+
+ ret = clk_get_by_index(dev, 0, &clk);
+ if (ret < 0) {
+ dev_err(dev, "failed to get clock\n");
+ return ret;
+ }
+
+ clock = clk_get_rate(&clk);
+ if (IS_ERR_VALUE(clock)) {
+ dev_err(dev, "failed to get rate\n");
+ return clock;
+ }
+ debug("%s: CLK %ld\n", __func__, clock);
+
+ ret = clk_enable(&clk);
+ if (ret && ret != -ENOSYS) {
+ dev_err(dev, "failed to enable clock\n");
+ return ret;
+ }
_uart_zynq_serial_setbrg(priv->regs, clock, baudrate);
{
struct zynq_uart_priv *priv = dev_get_priv(dev);
+ /* No need to reinitialize the UART after relocation */
+ if (gd->flags & GD_FLG_RELOC)
+ return 0;
+
_uart_zynq_serial_init(priv->regs);
return 0;
static int zynq_serial_ofdata_to_platdata(struct udevice *dev)
{
struct zynq_uart_priv *priv = dev_get_priv(dev);
- fdt_addr_t addr;
-
- addr = fdtdec_get_addr(gd->fdt_blob, dev->of_offset, "reg");
- if (addr == FDT_ADDR_T_NONE)
- return -EINVAL;
- priv->regs = (struct uart_zynq *)addr;
+ priv->regs = (struct uart_zynq *)dev_read_addr(dev);
+ if (IS_ERR(priv->regs))
+ return PTR_ERR(priv->regs);
return 0;
}
static const struct udevice_id zynq_serial_ids[] = {
{ .compatible = "xlnx,xuartps" },
{ .compatible = "cdns,uart-r1p8" },
+ { .compatible = "cdns,uart-r1p12" },
{ }
};
-U_BOOT_DRIVER(serial_s5p) = {
+U_BOOT_DRIVER(serial_zynq) = {
.name = "serial_zynq",
.id = UCLASS_SERIAL,
.of_match = zynq_serial_ids,
};
#ifdef CONFIG_DEBUG_UART_ZYNQ
-
-#include <debug_uart.h>
-
-void _debug_uart_init(void)
+static inline void _debug_uart_init(void)
{
struct uart_zynq *regs = (struct uart_zynq *)CONFIG_DEBUG_UART_BASE;