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Diffstat (limited to 'drivers/serial/cpm_uart/cpm_uart.h')
-rw-r--r--drivers/serial/cpm_uart/cpm_uart.h58
1 files changed, 51 insertions, 7 deletions
diff --git a/drivers/serial/cpm_uart/cpm_uart.h b/drivers/serial/cpm_uart/cpm_uart.h
index 73c8a088c160..3b35cb779539 100644
--- a/drivers/serial/cpm_uart/cpm_uart.h
+++ b/drivers/serial/cpm_uart/cpm_uart.h
@@ -5,11 +5,20 @@
5 * 5 *
6 * Copyright (C) 2004 Freescale Semiconductor, Inc. 6 * Copyright (C) 2004 Freescale Semiconductor, Inc.
7 * 7 *
8 * 2006 (c) MontaVista Software, Inc.
9 * Vitaly Bordug <vbordug@ru.mvista.com>
10 *
11 * This file is licensed under the terms of the GNU General Public License
12 * version 2. This program is licensed "as is" without any warranty of any
13 * kind, whether express or implied.
14 *
8 */ 15 */
9#ifndef CPM_UART_H 16#ifndef CPM_UART_H
10#define CPM_UART_H 17#define CPM_UART_H
11 18
12#include <linux/config.h> 19#include <linux/config.h>
20#include <linux/platform_device.h>
21#include <linux/fs_uart_pd.h>
13 22
14#if defined(CONFIG_CPM2) 23#if defined(CONFIG_CPM2)
15#include "cpm_uart_cpm2.h" 24#include "cpm_uart_cpm2.h"
@@ -26,14 +35,14 @@
26#define FLAG_SMC 0x00000002 35#define FLAG_SMC 0x00000002
27#define FLAG_CONSOLE 0x00000001 36#define FLAG_CONSOLE 0x00000001
28 37
29#define UART_SMC1 0 38#define UART_SMC1 fsid_smc1_uart
30#define UART_SMC2 1 39#define UART_SMC2 fsid_smc2_uart
31#define UART_SCC1 2 40#define UART_SCC1 fsid_scc1_uart
32#define UART_SCC2 3 41#define UART_SCC2 fsid_scc2_uart
33#define UART_SCC3 4 42#define UART_SCC3 fsid_scc3_uart
34#define UART_SCC4 5 43#define UART_SCC4 fsid_scc4_uart
35 44
36#define UART_NR 6 45#define UART_NR fs_uart_nr
37 46
38#define RX_NUM_FIFO 4 47#define RX_NUM_FIFO 4
39#define RX_BUF_SIZE 32 48#define RX_BUF_SIZE 32
@@ -64,6 +73,7 @@ struct uart_cpm_port {
64 uint dp_addr; 73 uint dp_addr;
65 void *mem_addr; 74 void *mem_addr;
66 dma_addr_t dma_addr; 75 dma_addr_t dma_addr;
76 u32 mem_size;
67 /* helpers */ 77 /* helpers */
68 int baud; 78 int baud;
69 int bits; 79 int bits;
@@ -90,4 +100,38 @@ void scc2_lineif(struct uart_cpm_port *pinfo);
90void scc3_lineif(struct uart_cpm_port *pinfo); 100void scc3_lineif(struct uart_cpm_port *pinfo);
91void scc4_lineif(struct uart_cpm_port *pinfo); 101void scc4_lineif(struct uart_cpm_port *pinfo);
92 102
103/*
104 virtual to phys transtalion
105*/
106static inline unsigned long cpu2cpm_addr(void* addr, struct uart_cpm_port *pinfo)
107{
108 int offset;
109 u32 val = (u32)addr;
110 /* sane check */
111 if (likely((val >= (u32)pinfo->mem_addr)) &&
112 (val<((u32)pinfo->mem_addr + pinfo->mem_size))) {
113 offset = val - (u32)pinfo->mem_addr;
114 return pinfo->dma_addr+offset;
115 }
116 /* something nasty happened */
117 BUG();
118 return 0;
119}
120
121static inline void *cpm2cpu_addr(unsigned long addr, struct uart_cpm_port *pinfo)
122{
123 int offset;
124 u32 val = addr;
125 /* sane check */
126 if (likely((val >= pinfo->dma_addr) &&
127 (val<(pinfo->dma_addr + pinfo->mem_size)))) {
128 offset = val - (u32)pinfo->dma_addr;
129 return (void*)(pinfo->mem_addr+offset);
130 }
131 /* something nasty happened */
132 BUG();
133 return 0;
134}
135
136
93#endif /* CPM_UART_H */ 137#endif /* CPM_UART_H */