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cpm_uart/ subdirectory only has cpm_uart_core.c and cpm_uart.h now. Move them up and remove cpm_uart/ directory while renaming cpm_uart_core.c as cpm_uart.c Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu> Link: https://lore.kernel.org/r/9b8b8f89fc386480030f5339abe307541ae436a6.1691068700.git.christophe.leroy@csgroup.eu Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
114 lines
2.3 KiB
C
114 lines
2.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Driver for CPM (SCC/SMC) serial ports
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*
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* Copyright (C) 2004 Freescale Semiconductor, Inc.
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*
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* 2006 (c) MontaVista Software, Inc.
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* Vitaly Bordug <vbordug@ru.mvista.com>
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*/
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#ifndef CPM_UART_H
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#define CPM_UART_H
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#include <linux/platform_device.h>
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struct gpio_desc;
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#if defined(CONFIG_CPM2)
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#include "asm/cpm2.h"
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#elif defined(CONFIG_CPM1)
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#include "asm/cpm1.h"
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#endif
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#define DPRAM_BASE ((u8 __iomem *)cpm_muram_addr(0))
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#define SERIAL_CPM_MAJOR 204
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#define SERIAL_CPM_MINOR 46
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#define IS_SMC(pinfo) (pinfo->flags & FLAG_SMC)
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#define FLAG_SMC 0x00000002
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#define FLAG_CONSOLE 0x00000001
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#define UART_NR 6
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#define RX_NUM_FIFO 4
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#define RX_BUF_SIZE 32
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#define TX_NUM_FIFO 4
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#define TX_BUF_SIZE 32
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#define GPIO_CTS 0
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#define GPIO_RTS 1
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#define GPIO_DCD 2
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#define GPIO_DSR 3
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#define GPIO_DTR 4
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#define GPIO_RI 5
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#define NUM_GPIOS (GPIO_RI+1)
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struct uart_cpm_port {
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struct uart_port port;
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u16 rx_nrfifos;
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u16 rx_fifosize;
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u16 tx_nrfifos;
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u16 tx_fifosize;
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smc_t __iomem *smcp;
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smc_uart_t __iomem *smcup;
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scc_t __iomem *sccp;
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scc_uart_t __iomem *sccup;
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cbd_t __iomem *rx_bd_base;
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cbd_t __iomem *rx_cur;
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cbd_t __iomem *tx_bd_base;
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cbd_t __iomem *tx_cur;
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unsigned char *tx_buf;
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unsigned char *rx_buf;
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u32 flags;
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struct clk *clk;
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u8 brg;
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uint dp_addr;
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void *mem_addr;
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dma_addr_t dma_addr;
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u32 mem_size;
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/* wait on close if needed */
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int wait_closing;
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/* value to combine with opcode to form cpm command */
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u32 command;
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struct gpio_desc *gpios[NUM_GPIOS];
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};
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/*
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virtual to phys transtalion
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*/
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static inline unsigned long cpu2cpm_addr(void *addr,
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struct uart_cpm_port *pinfo)
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{
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int offset;
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u32 val = (u32)addr;
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u32 mem = (u32)pinfo->mem_addr;
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/* sane check */
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if (likely(val >= mem && val < mem + pinfo->mem_size)) {
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offset = val - mem;
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return pinfo->dma_addr + offset;
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}
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/* something nasty happened */
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BUG();
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return 0;
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}
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static inline void *cpm2cpu_addr(unsigned long addr,
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struct uart_cpm_port *pinfo)
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{
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int offset;
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u32 val = addr;
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u32 dma = (u32)pinfo->dma_addr;
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/* sane check */
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if (likely(val >= dma && val < dma + pinfo->mem_size)) {
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offset = val - dma;
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return pinfo->mem_addr + offset;
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}
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/* something nasty happened */
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BUG();
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return NULL;
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}
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#endif /* CPM_UART_H */
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