mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-21 16:29:59 +00:00
serial: core: Add big-endian iotype
Since most drivers interpret UPIO_MEM32 to mean "little-endian" and use readl/writel to access the registers, add a parallel UPIO_MEM32BE to request the use of big-endian MMIO accessors (ioread32be/iowrite32be). Signed-off-by: Kevin Cernekee <cernekee@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
parent
57850a50c1
commit
3ffb1a8193
2 changed files with 9 additions and 6 deletions
|
@ -2153,6 +2153,7 @@ uart_report_port(struct uart_driver *drv, struct uart_port *port)
|
|||
break;
|
||||
case UPIO_MEM:
|
||||
case UPIO_MEM32:
|
||||
case UPIO_MEM32BE:
|
||||
case UPIO_AU:
|
||||
case UPIO_TSI:
|
||||
snprintf(address, sizeof(address),
|
||||
|
@ -2796,6 +2797,7 @@ int uart_match_port(struct uart_port *port1, struct uart_port *port2)
|
|||
(port1->hub6 == port2->hub6);
|
||||
case UPIO_MEM:
|
||||
case UPIO_MEM32:
|
||||
case UPIO_MEM32BE:
|
||||
case UPIO_AU:
|
||||
case UPIO_TSI:
|
||||
return (port1->mapbase == port2->mapbase);
|
||||
|
|
|
@ -142,12 +142,13 @@ struct uart_port {
|
|||
unsigned char iotype; /* io access style */
|
||||
unsigned char unused1;
|
||||
|
||||
#define UPIO_PORT (0)
|
||||
#define UPIO_HUB6 (1)
|
||||
#define UPIO_MEM (2)
|
||||
#define UPIO_MEM32 (3)
|
||||
#define UPIO_AU (4) /* Au1x00 and RT288x type IO */
|
||||
#define UPIO_TSI (5) /* Tsi108/109 type IO */
|
||||
#define UPIO_PORT (0) /* 8b I/O port access */
|
||||
#define UPIO_HUB6 (1) /* Hub6 ISA card */
|
||||
#define UPIO_MEM (2) /* 8b MMIO access */
|
||||
#define UPIO_MEM32 (3) /* 32b little endian */
|
||||
#define UPIO_MEM32BE (4) /* 32b big endian */
|
||||
#define UPIO_AU (5) /* Au1x00 and RT288x type IO */
|
||||
#define UPIO_TSI (6) /* Tsi108/109 type IO */
|
||||
|
||||
unsigned int read_status_mask; /* driver specific */
|
||||
unsigned int ignore_status_mask; /* driver specific */
|
||||
|
|
Loading…
Reference in a new issue