diff options
| author | Andrew Turner <andrew@FreeBSD.org> | 2016-07-20 17:19:47 +0000 |
|---|---|---|
| committer | Andrew Turner <andrew@FreeBSD.org> | 2016-07-20 17:19:47 +0000 |
| commit | d4c893910db65fc996011aea6a118b5672ae453c (patch) | |
| tree | 822ad05a15835e3cb21ebe56ba053dc3d0fe9a3b /sys/dev/uart/uart_cpu_fdt.c | |
| parent | c17b0bd2a652a3594ddf30de03a6ac58ce1d32ab (diff) | |
Notes
Diffstat (limited to 'sys/dev/uart/uart_cpu_fdt.c')
| -rw-r--r-- | sys/dev/uart/uart_cpu_fdt.c | 70 |
1 files changed, 11 insertions, 59 deletions
diff --git a/sys/dev/uart/uart_cpu_fdt.c b/sys/dev/uart/uart_cpu_fdt.c index 4e5ff43cdb515..e73ff6a63bd98 100644 --- a/sys/dev/uart/uart_cpu_fdt.c +++ b/sys/dev/uart/uart_cpu_fdt.c @@ -120,14 +120,11 @@ uart_fdt_find_by_node(phandle_t node, int class_list) int uart_cpu_getdev(int devtype, struct uart_devinfo *di) { - const char *propnames[] = {"stdout-path", "linux,stdout-path", "stdout", - "stdin-path", "stdin", NULL}; - const char **name; struct uart_class *class; - phandle_t node, chosen; - pcell_t shift, br, rclk; - char *cp; - int err; + bus_space_tag_t bst; + bus_space_handle_t bsh; + u_int shift, rclk; + int br, err; /* Allow overriding the FDT using the environment. */ class = &uart_ns8250_class; @@ -138,69 +135,24 @@ uart_cpu_getdev(int devtype, struct uart_devinfo *di) if (devtype != UART_DEV_CONSOLE) return (ENXIO); - /* Has the user forced a specific device node? */ - cp = kern_getenv("hw.fdt.console"); - if (cp == NULL) { - /* - * Retrieve /chosen/std{in,out}. - */ - node = -1; - if ((chosen = OF_finddevice("/chosen")) != -1) { - for (name = propnames; *name != NULL; name++) { - if (phandle_chosen_propdev(chosen, *name, - &node) == 0) - break; - } - } - if (chosen == -1 || *name == NULL) - node = OF_finddevice("serial0"); /* Last ditch */ - } else { - node = OF_finddevice(cp); - } - - if (node == -1) /* Can't find anything */ - return (ENXIO); - - /* - * Check old style of UART definition first. Unfortunately, the common - * FDT processing is not possible if we have clock, power domains and - * pinmux stuff. - */ - class = (struct uart_class *)uart_fdt_find_by_node(node, 0); - if (class != NULL) { - if ((err = uart_fdt_get_clock(node, &rclk)) != 0) - return (err); - } else { - /* Check class only linker set */ - class = - (struct uart_class *)uart_fdt_find_by_node(node, 1); - if (class == NULL) - return (ENXIO); - rclk = 0; - } - - /* - * Retrieve serial attributes. - */ - if (uart_fdt_get_shift(node, &shift) != 0) - shift = uart_getregshift(class); - - if (OF_getencprop(node, "current-speed", &br, sizeof(br)) <= 0) - br = 0; + err = uart_cpu_fdt_probe(&class, &bst, &bsh, &br, &rclk, &shift); + if (err != 0) + return (err); /* * Finalize configuration. */ di->bas.chan = 0; - di->bas.regshft = (u_int)shift; + di->bas.regshft = shift; di->baudrate = br; - di->bas.rclk = (u_int)rclk; + di->bas.rclk = rclk; di->ops = uart_getops(class); di->databits = 8; di->stopbits = 1; di->parity = UART_PARITY_NONE; + di->bas.bst = bst; + di->bas.bsh = bsh; - err = OF_decode_addr(node, 0, &di->bas.bst, &di->bas.bsh, NULL); uart_bus_space_mem = di->bas.bst; uart_bus_space_io = NULL; |
