diff options
Diffstat (limited to 'include/ns16550.h')
| -rw-r--r-- | include/ns16550.h | 42 |
1 files changed, 32 insertions, 10 deletions
diff --git a/include/ns16550.h b/include/ns16550.h index e17a11e..996d915 100644 --- a/include/ns16550.h +++ b/include/ns16550.h @@ -7,6 +7,9 @@ * added prototypes for ns16550.c * reduced no of com ports to 2 * modifications (c) Rob Taylor, Flying Pig Systems. 2000. + * + * added support for port on 64-bit bus + * by Richard Danter (richard.danter@windriver.com), (C) 2005 Wind River Systems */ #if (CFG_NS16550_REG_SIZE == 1) @@ -45,15 +48,15 @@ struct NS16550 { } __attribute__ ((packed)); #elif (CFG_NS16550_REG_SIZE == 4) struct NS16550 { - unsigned long rbr; /* 0 */ - unsigned long ier; /* 1 */ - unsigned long fcr; /* 2 */ - unsigned long lcr; /* 3 */ - unsigned long mcr; /* 4 */ - unsigned long lsr; /* 5 */ - unsigned long msr; /* 6 */ - unsigned long scr; /* 7 */ -} __attribute__ ((packed)); + unsigned long rbr; /* 0 r */ + unsigned long ier; /* 1 rw */ + unsigned long fcr; /* 2 w */ + unsigned long lcr; /* 3 rw */ + unsigned long mcr; /* 4 rw */ + unsigned long lsr; /* 5 r */ + unsigned long msr; /* 6 r */ + unsigned long scr; /* 7 rw */ +}; /* No need to pack an already aligned struct */ #elif (CFG_NS16550_REG_SIZE == -4) struct NS16550 { unsigned char rbr; /* 0 */ @@ -82,6 +85,25 @@ struct NS16550 { int pad10:24; #endif } __attribute__ ((packed)); +#elif (CFG_NS16550_REG_SIZE == -8) +struct NS16550 { + unsigned char rbr; /* 0 */ + unsigned char pad0[7]; + unsigned char ier; /* 1 */ + unsigned char pad1[7]; + unsigned char fcr; /* 2 */ + unsigned char pad2[7]; + unsigned char lcr; /* 3 */ + unsigned char pad3[7]; + unsigned char mcr; /* 4 */ + unsigned char pad4[7]; + unsigned char lsr; /* 5 */ + unsigned char pad5[7]; + unsigned char msr; /* 6 */ + unsigned char pad6[7]; + unsigned char scr; /* 7 */ + unsigned char pad7[7]; +} __attribute__ ((packed)); #else #error "Please define NS16550 registers size." #endif @@ -102,7 +124,7 @@ typedef volatile struct NS16550 *NS16550_t; #define MCR_DMA_EN 0x04 #define MCR_TX_DFR 0x08 -#define LCR_WLS_MSK 0x03 /* character length slect mask */ +#define LCR_WLS_MSK 0x03 /* character length select mask */ #define LCR_WLS_5 0x00 /* 5 bit character length */ #define LCR_WLS_6 0x01 /* 6 bit character length */ #define LCR_WLS_7 0x02 /* 7 bit character length */ |