/* SPDX-License-Identifier: GPL-2.0 *//* *  Driver for CPM (SCC/SMC) serial ports * *  Copyright (C) 2004 Freescale Semiconductor, Inc. * *  2006 (c) MontaVista Software, Inc. *	Vitaly Bordug <vbordug@ru.mvista.com> */#ifndef CPM_UART_H#define CPM_UART_H #include <linux/platform_device.h> struct gpio_desc; #if defined(CONFIG_CPM2)#include "asm/cpm2.h"#elif defined(CONFIG_CPM1)#include "asm/cpm1.h"#endif #define DPRAM_BASE	((u8 __iomem *)cpm_muram_addr(0)) #define SERIAL_CPM_MAJOR	204#define SERIAL_CPM_MINOR	46 #define IS_SMC(pinfo)		(pinfo->flags & FLAG_SMC)#define FLAG_SMC	0x00000002#define FLAG_CONSOLE	0x00000001 #define UART_NR		6 #define RX_NUM_FIFO	4#define RX_BUF_SIZE	32#define TX_NUM_FIFO	4#define TX_BUF_SIZE	32 #define GPIO_CTS	0#define GPIO_RTS	1#define GPIO_DCD	2#define GPIO_DSR	3#define GPIO_DTR	4#define GPIO_RI		5 #define NUM_GPIOS	(GPIO_RI+1) struct uart_cpm_port {	struct uart_port	port;	u16			rx_nrfifos;	u16			rx_fifosize;	u16			tx_nrfifos;	u16			tx_fifosize;	smc_t __iomem		*smcp;	smc_uart_t __iomem	*smcup;	scc_t __iomem		*sccp;	scc_uart_t __iomem	*sccup;	cbd_t __iomem		*rx_bd_base;	cbd_t __iomem		*rx_cur;	cbd_t __iomem		*tx_bd_base;	cbd_t __iomem		*tx_cur;	unsigned char		*tx_buf;	unsigned char		*rx_buf;	u32			flags;	struct clk		*clk;	u8			brg;	uint			 dp_addr;	void			*mem_addr;	dma_addr_t		 dma_addr;	u32			mem_size;	/* wait on close if needed */	int			wait_closing;	/* value to combine with opcode to form cpm command */	u32			command;	struct gpio_desc	*gpios[NUM_GPIOS];}; /*   virtual to phys transtalion*/static inline unsigned long cpu2cpm_addr(void *addr,                                         struct uart_cpm_port *pinfo){	int offset;	u32 val = (u32)addr;	u32 mem = (u32)pinfo->mem_addr;	/* sane check */	if (likely(val >= mem && val < mem + pinfo->mem_size)) {		offset = val - mem;		return pinfo->dma_addr + offset;	}	/* something nasty happened */	BUG();	return 0;} static inline void *cpm2cpu_addr(unsigned long addr,                                 struct uart_cpm_port *pinfo){	int offset;	u32 val = addr;	u32 dma = (u32)pinfo->dma_addr;	/* sane check */	if (likely(val >= dma && val < dma + pinfo->mem_size)) {		offset = val - dma;		return pinfo->mem_addr + offset;	}	/* something nasty happened */	BUG();	return NULL;}  #endif /* CPM_UART_H */