| uart_bus_fdt.c (249999) | uart_bus_fdt.c (250840) |
|---|---|
| 1/*- 2 * Copyright (c) 2009-2010 The FreeBSD Foundation 3 * All rights reserved. 4 * 5 * This software was developed by Semihalf under sponsorship from 6 * the FreeBSD Foundation. 7 * 8 * Redistribution and use in source and binary forms, with or without --- 14 unchanged lines hidden (view full) --- 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30#include <sys/cdefs.h> | 1/*- 2 * Copyright (c) 2009-2010 The FreeBSD Foundation 3 * All rights reserved. 4 * 5 * This software was developed by Semihalf under sponsorship from 6 * the FreeBSD Foundation. 7 * 8 * Redistribution and use in source and binary forms, with or without --- 14 unchanged lines hidden (view full) --- 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30#include <sys/cdefs.h> |
| 31__FBSDID("$FreeBSD: head/sys/dev/uart/uart_bus_fdt.c 249999 2013-04-27 23:07:49Z wkoszek $"); | 31__FBSDID("$FreeBSD: head/sys/dev/uart/uart_bus_fdt.c 250840 2013-05-21 03:05:49Z marcel $"); |
| 32 33#include <sys/param.h> 34#include <sys/bus.h> 35#include <sys/kernel.h> 36#include <sys/module.h> 37 38#include <machine/bus.h> 39#include <machine/fdt.h> --- 79 unchanged lines hidden (view full) --- 119 if ((err = uart_fdt_get_clock(node, &clock)) != 0) 120 return (err); 121 uart_fdt_get_shift(node, &shift); 122 123 return (uart_bus_probe(dev, (int)shift, (int)clock, 0, 0)); 124} 125 126DRIVER_MODULE(uart, simplebus, uart_fdt_driver, uart_devclass, 0, 0); | 32 33#include <sys/param.h> 34#include <sys/bus.h> 35#include <sys/kernel.h> 36#include <sys/module.h> 37 38#include <machine/bus.h> 39#include <machine/fdt.h> --- 79 unchanged lines hidden (view full) --- 119 if ((err = uart_fdt_get_clock(node, &clock)) != 0) 120 return (err); 121 uart_fdt_get_shift(node, &shift); 122 123 return (uart_bus_probe(dev, (int)shift, (int)clock, 0, 0)); 124} 125 126DRIVER_MODULE(uart, simplebus, uart_fdt_driver, uart_devclass, 0, 0); |
| 127 128/* 129 * UART console routines. 130 */ 131bus_space_tag_t uart_bus_space_io; 132bus_space_tag_t uart_bus_space_mem; 133 134int 135uart_cpu_eqres(struct uart_bas *b1, struct uart_bas *b2) 136{ 137 138 return ((b1->bsh == b2->bsh && b1->bst == b2->bst) ? 1 : 0); 139} 140 141int 142uart_cpu_getdev(int devtype, struct uart_devinfo *di) 143{ 144 char buf[64]; 145 struct uart_class *class; 146 phandle_t node, chosen; 147 pcell_t shift, br, rclk; 148 u_long start, size, pbase, psize; 149 int err; 150 151 uart_bus_space_mem = fdtbus_bs_tag; 152 uart_bus_space_io = NULL; 153 154 /* Allow overriding the FDT uning the environment. */ 155 class = &uart_ns8250_class; 156 err = uart_getenv(devtype, di, class); 157 if (!err) 158 return (0); 159 160 if (devtype != UART_DEV_CONSOLE) 161 return (ENXIO); 162 163 /* 164 * Retrieve /chosen/std{in,out}. 165 */ 166 if ((chosen = OF_finddevice("/chosen")) == -1) 167 return (ENXIO); 168 if (OF_getprop(chosen, "stdin", buf, sizeof(buf)) <= 0) 169 return (ENXIO); 170 if ((node = OF_finddevice(buf)) == -1) 171 return (ENXIO); 172 if (OF_getprop(chosen, "stdout", buf, sizeof(buf)) <= 0) 173 return (ENXIO); 174 if (OF_finddevice(buf) != node) 175 /* Only stdin == stdout is supported. */ 176 return (ENXIO); 177 /* 178 * Retrieve serial attributes. 179 */ 180 uart_fdt_get_shift(node, &shift); 181 182 if (OF_getprop(node, "current-speed", &br, sizeof(br)) <= 0) 183 br = 0; 184 br = fdt32_to_cpu(br); 185 186 if ((err = uart_fdt_get_clock(node, &rclk)) != 0) 187 return (err); 188 /* 189 * Finalize configuration. 190 */ 191 if (fdt_is_compatible(node, "fsl,imx-uart")) 192 class = &uart_imx_class; 193 if (fdt_is_compatible(node, "quicc")) 194 class = &uart_quicc_class; 195 if (fdt_is_compatible(node, "lpc")) 196 class = &uart_lpc_class; 197 if (fdt_is_compatible(node, "ns16550")) 198 class = &uart_ns8250_class; 199 if (fdt_is_compatible(node, "arm,pl011")) 200 class = &uart_pl011_class; 201 if (fdt_is_compatible(node, "cadence,uart")) 202 class = &uart_cdnc_class; 203 204 di->bas.chan = 0; 205 di->bas.regshft = (u_int)shift; 206 di->baudrate = br; 207 di->bas.rclk = (u_int)rclk; 208 di->ops = uart_getops(class); 209 di->databits = 8; 210 di->stopbits = 1; 211 di->parity = UART_PARITY_NONE; 212 di->bas.bst = uart_bus_space_mem; 213 214 err = fdt_regsize(node, &start, &size); 215 if (err) 216 return (ENXIO); 217 err = fdt_get_range(OF_parent(node), 0, &pbase, &psize); 218 if (err) 219 pbase = 0; 220 221 start += pbase; 222 223 return (bus_space_map(di->bas.bst, start, size, 0, &di->bas.bsh)); 224} | |