diff options
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/boot/dts/mpc832x_mds.dts | 50 | ||||
| -rw-r--r-- | arch/powerpc/sysdev/qe_lib/Kconfig | 2 | ||||
| -rw-r--r-- | arch/powerpc/sysdev/qe_lib/ucc_slow.c | 10 |
3 files changed, 60 insertions, 2 deletions
diff --git a/arch/powerpc/boot/dts/mpc832x_mds.dts b/arch/powerpc/boot/dts/mpc832x_mds.dts index 5093ef304ff..690252456d3 100644 --- a/arch/powerpc/boot/dts/mpc832x_mds.dts +++ b/arch/powerpc/boot/dts/mpc832x_mds.dts @@ -7,6 +7,18 @@ * under the terms of the GNU General Public License as published by the * Free Software Foundation; either version 2 of the License, or (at your * option) any later version. + + * To enable external serial I/O on a Freescale MPC 8323 SYS/MDS board, do + * this: + * + * 1) On chip U61, lift (disconnect) pins 21 (TXD) and 22 (RXD) from the board. + * 2) Solder a wire from U61-21 to P19A-23. P19 is a grid of pins on the board + * next to the serial ports. + * 3) Solder a wire from U61-22 to P19K-22. + * + * Note that there's a typo in the schematic. The board labels the last column + * of pins "P19K", but in the schematic, that column is called "P19J". So if + * you're going by the schematic, the pin is called "P19J-K22". */ / { @@ -169,6 +181,23 @@ 1 1e 1 0 1 0 /* TX_EN */ 1 1f 2 0 1 0>;/* CRS */ }; + pio5: ucc_pin@05 { + pio-map = < + /* + * open has + * port pin dir drain sel irq + */ + 2 0 1 0 2 0 /* TxD5 */ + 2 8 2 0 2 0 /* RxD5 */ + + 2 1d 2 0 0 0 /* CTS5 */ + 2 1f 1 0 2 0 /* RTS5 */ + + 2 18 2 0 0 0 /* CD */ + + >; + }; + }; }; @@ -176,6 +205,7 @@ #address-cells = <1>; #size-cells = <1>; device_type = "qe"; + compatible = "fsl,qe"; model = "QE"; ranges = <0 e0100000 00100000>; reg = <e0100000 480>; @@ -249,6 +279,26 @@ pio-handle = < &pio4 >; }; + ucc@2400 { + device_type = "serial"; + compatible = "ucc_uart"; + model = "UCC"; + device-id = <5>; /* The UCC number, 1-7*/ + port-number = <0>; /* Which ttyQEx device */ + soft-uart; /* We need Soft-UART */ + reg = <2400 200>; + interrupts = <28>; /* From Table 18-12 */ + interrupt-parent = < &qeic >; + /* + * For Soft-UART, we need to set TX to 1X, which + * means specifying separate clock sources. + */ + rx-clock-name = "brg5"; + tx-clock-name = "brg6"; + pio-handle = < &pio5 >; + }; + + mdio@2320 { #address-cells = <1>; #size-cells = <0>; diff --git a/arch/powerpc/sysdev/qe_lib/Kconfig b/arch/powerpc/sysdev/qe_lib/Kconfig index f611d344a12..adc66212a41 100644 --- a/arch/powerpc/sysdev/qe_lib/Kconfig +++ b/arch/powerpc/sysdev/qe_lib/Kconfig @@ -4,7 +4,7 @@ config UCC_SLOW bool - default n + default y if SERIAL_QE help This option provides qe_lib support to UCC slow protocols: UART, BISYNC, QMC diff --git a/arch/powerpc/sysdev/qe_lib/ucc_slow.c b/arch/powerpc/sysdev/qe_lib/ucc_slow.c index 0174b3aeef8..b2870b208dd 100644 --- a/arch/powerpc/sysdev/qe_lib/ucc_slow.c +++ b/arch/powerpc/sysdev/qe_lib/ucc_slow.c @@ -19,6 +19,7 @@ #include <linux/stddef.h> #include <linux/interrupt.h> #include <linux/err.h> +#include <linux/module.h> #include <asm/io.h> #include <asm/immap_qe.h> @@ -41,6 +42,7 @@ u32 ucc_slow_get_qe_cr_subblock(int uccs_num) default: return QE_CR_SUBBLOCK_INVALID; } } +EXPORT_SYMBOL(ucc_slow_get_qe_cr_subblock); void ucc_slow_poll_transmitter_now(struct ucc_slow_private * uccs) { @@ -56,6 +58,7 @@ void ucc_slow_graceful_stop_tx(struct ucc_slow_private * uccs) qe_issue_cmd(QE_GRACEFUL_STOP_TX, id, QE_CR_PROTOCOL_UNSPECIFIED, 0); } +EXPORT_SYMBOL(ucc_slow_graceful_stop_tx); void ucc_slow_stop_tx(struct ucc_slow_private * uccs) { @@ -65,6 +68,7 @@ void ucc_slow_stop_tx(struct ucc_slow_private * uccs) id = ucc_slow_get_qe_cr_subblock(us_info->ucc_num); qe_issue_cmd(QE_STOP_TX, id, QE_CR_PROTOCOL_UNSPECIFIED, 0); } +EXPORT_SYMBOL(ucc_slow_stop_tx); void ucc_slow_restart_tx(struct ucc_slow_private * uccs) { @@ -74,6 +78,7 @@ void ucc_slow_restart_tx(struct ucc_slow_private * uccs) id = ucc_slow_get_qe_cr_subblock(us_info->ucc_num); qe_issue_cmd(QE_RESTART_TX, id, QE_CR_PROTOCOL_UNSPECIFIED, 0); } +EXPORT_SYMBOL(ucc_slow_restart_tx); void ucc_slow_enable(struct ucc_slow_private * uccs, enum comm_dir mode) { @@ -94,6 +99,7 @@ void ucc_slow_enable(struct ucc_slow_private * uccs, enum comm_dir mode) } out_be32(&us_regs->gumr_l, gumr_l); } +EXPORT_SYMBOL(ucc_slow_enable); void ucc_slow_disable(struct ucc_slow_private * uccs, enum comm_dir mode) { @@ -114,6 +120,7 @@ void ucc_slow_disable(struct ucc_slow_private * uccs, enum comm_dir mode) } out_be32(&us_regs->gumr_l, gumr_l); } +EXPORT_SYMBOL(ucc_slow_disable); /* Initialize the UCC for Slow operations * @@ -347,6 +354,7 @@ int ucc_slow_init(struct ucc_slow_info * us_info, struct ucc_slow_private ** ucc *uccs_ret = uccs; return 0; } +EXPORT_SYMBOL(ucc_slow_init); void ucc_slow_free(struct ucc_slow_private * uccs) { @@ -366,5 +374,5 @@ void ucc_slow_free(struct ucc_slow_private * uccs) kfree(uccs); } - +EXPORT_SYMBOL(ucc_slow_free); |