| uart_dev_lpc.c (262649) | uart_dev_lpc.c (266084) |
|---|---|
| 1/*- 2 * Copyright (c) 2003 Marcel Moolenaar 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * --- 11 unchanged lines hidden (view full) --- 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27#include <sys/cdefs.h> | 1/*- 2 * Copyright (c) 2003 Marcel Moolenaar 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * --- 11 unchanged lines hidden (view full) --- 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27#include <sys/cdefs.h> |
| 28__FBSDID("$FreeBSD: stable/10/sys/dev/uart/uart_dev_lpc.c 262649 2014-03-01 04:16:54Z imp $"); | 28__FBSDID("$FreeBSD: stable/10/sys/dev/uart/uart_dev_lpc.c 266084 2014-05-14 19:18:58Z ian $"); |
| 29 30#include <sys/param.h> 31#include <sys/systm.h> 32#include <sys/bus.h> 33#include <sys/conf.h> 34#include <machine/bus.h> | 29 30#include <sys/param.h> 31#include <sys/systm.h> 32#include <sys/bus.h> 33#include <sys/conf.h> 34#include <machine/bus.h> |
| 35#include <machine/fdt.h> |
|
| 35 36#include <dev/uart/uart.h> 37#include <dev/uart/uart_cpu.h> 38#include <dev/uart/uart_bus.h> 39 40#include <dev/ic/ns16550.h> 41#include <arm/lpc/lpcreg.h> 42 43#include "uart_if.h" 44 45#define DEFAULT_RCLK (13 * 1000 * 1000) | 36 37#include <dev/uart/uart.h> 38#include <dev/uart/uart_cpu.h> 39#include <dev/uart/uart_bus.h> 40 41#include <dev/ic/ns16550.h> 42#include <arm/lpc/lpcreg.h> 43 44#include "uart_if.h" 45 46#define DEFAULT_RCLK (13 * 1000 * 1000) |
| 46#define LPC_UART_NO(_bas) (((_bas->bsh) - LPC_UART_BASE) >> 15) | |
| 47 | 47 |
| 48#define lpc_ns8250_get_auxreg(_bas, _reg) \ 49 bus_space_read_4((_bas)->bst, LPC_UART_CONTROL_BASE, _reg) 50#define lpc_ns8250_set_auxreg(_bas, _reg, _val) \ 51 bus_space_write_4((_bas)->bst, LPC_UART_CONTROL_BASE, _reg, _val); | 48static bus_space_handle_t bsh_clkpwr; 49 |
| 52#define lpc_ns8250_get_clkreg(_bas, _reg) \ | 50#define lpc_ns8250_get_clkreg(_bas, _reg) \ |
| 53 bus_space_read_4((_bas)->bst, LPC_CLKPWR_BASE, (_reg)) | 51 bus_space_read_4(fdtbus_bs_tag, bsh_clkpwr, (_reg)) |
| 54#define lpc_ns8250_set_clkreg(_bas, _reg, _val) \ | 52#define lpc_ns8250_set_clkreg(_bas, _reg, _val) \ |
| 55 bus_space_write_4((_bas)->bst, LPC_CLKPWR_BASE, (_reg), (_val)) | 53 bus_space_write_4(fdtbus_bs_tag, bsh_clkpwr, (_reg), (_val)) |
| 56 57/* 58 * Clear pending interrupts. THRE is cleared by reading IIR. Data 59 * that may have been received gets lost here. 60 */ 61static void 62lpc_ns8250_clrint(struct uart_bas *bas) 63{ --- 224 unchanged lines hidden (view full) --- 288static void 289lpc_ns8250_init(struct uart_bas *bas, int baudrate, int databits, int stopbits, 290 int parity) 291{ 292 u_char ier; 293 u_long clkmode; 294 295 /* Enable UART clock */ | 54 55/* 56 * Clear pending interrupts. THRE is cleared by reading IIR. Data 57 * that may have been received gets lost here. 58 */ 59static void 60lpc_ns8250_clrint(struct uart_bas *bas) 61{ --- 224 unchanged lines hidden (view full) --- 286static void 287lpc_ns8250_init(struct uart_bas *bas, int baudrate, int databits, int stopbits, 288 int parity) 289{ 290 u_char ier; 291 u_long clkmode; 292 293 /* Enable UART clock */ |
| 296 clkmode = lpc_ns8250_get_auxreg(bas, LPC_UART_CLKMODE); 297 lpc_ns8250_set_auxreg(bas, LPC_UART_CLKMODE, 298 clkmode | LPC_UART_CLKMODE_UART5(1)); | 294 bus_space_map(fdtbus_bs_tag, LPC_CLKPWR_PHYS_BASE, LPC_CLKPWR_SIZE, 0, 295 &bsh_clkpwr); 296 clkmode = lpc_ns8250_get_clkreg(bas, LPC_UART_CLKMODE); 297 lpc_ns8250_set_clkreg(bas, LPC_UART_CLKMODE, clkmode | 298 LPC_UART_CLKMODE_UART5(1)); 299 |
| 299#if 0 300 /* Work around H/W bug */ 301 uart_setreg(bas, REG_DATA, 0x00); 302#endif 303 if (bas->rclk == 0) 304 bas->rclk = DEFAULT_RCLK; 305 lpc_ns8250_param(bas, baudrate, databits, stopbits, parity); 306 --- 620 unchanged lines hidden --- | 300#if 0 301 /* Work around H/W bug */ 302 uart_setreg(bas, REG_DATA, 0x00); 303#endif 304 if (bas->rclk == 0) 305 bas->rclk = DEFAULT_RCLK; 306 lpc_ns8250_param(bas, baudrate, databits, stopbits, parity); 307 --- 620 unchanged lines hidden --- |