diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-05-09 13:34:00 -0400 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-05-09 13:34:00 -0400 |
commit | 3ed43c745d2ce0c4ca15ad406285d1cc7e8ceec3 (patch) | |
tree | 286decf836edc60ef70a0306a785ed497f7fed73 /drivers | |
parent | 26c5e98e88a6126adef2ddce21899e5afe823a2b (diff) | |
parent | 45828b812ddb608ddf83eff11601f62b726d13ab (diff) |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6: (21 commits)
Blackfin Serial Driver: abstract away DLAB differences into header
Blackfin Serial Driver: macro away the IER differences between processors
[Blackfin] arch: remove useless IRQ_SW_INT defines
[Blackfin] arch: protect linux/usb/musb.h include until the driver gets mainlined
[Blackfin] arch: protect linux/usb/isp1362.h include until the driver gets mainlined
[Blackfin] arch: add EBIU supporting for BF54x EZKIT SMSC LAN911x/LAN921x families embedded ethernet driver
[Blackfin] arch: Set spi flash partition on bf527 as like bf548.
[Blackfin] arch: fix bug - Remove module will not free L1 memory used
[Blackfin] arch: fix wrong header name in comment
[Blackfin] arch: Fix BUG - spi flash on bf527 ezkit would fail at mount
[Blackfin] arch: add twi_lcd and twi_keypad i2c board info to bf527-ezkit
[Blackfin] arch: Add physmap partition for BF527-EZkit
[Blackfin] arch: fix gdb testing regression
[Blackfin] arch: disable single stepping when delivering a signal
[Blackfin] arch: Delete unused (copied from m68k) entries in asm-offsets.c.
[Blackfin] arch: In the double fault handler, set up the PT_RETI slot
[Blackfin] arch: Support for CPU_FREQ and NOHZ
[Blackfin] arch: Functional power management support: Add CPU and platform voltage scaling support
[Blackfin] arch: fix bug - breaking the atomic sections code.
[Blackfin] arch: Equalize include files: Add VR_CTL masks
...
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/serial/bfin_5xx.c | 98 |
1 files changed, 11 insertions, 87 deletions
diff --git a/drivers/serial/bfin_5xx.c b/drivers/serial/bfin_5xx.c index 8a2f6a1baa7..d6b4ead693b 100644 --- a/drivers/serial/bfin_5xx.c +++ b/drivers/serial/bfin_5xx.c | |||
@@ -65,9 +65,6 @@ static void bfin_serial_stop_tx(struct uart_port *port) | |||
65 | { | 65 | { |
66 | struct bfin_serial_port *uart = (struct bfin_serial_port *)port; | 66 | struct bfin_serial_port *uart = (struct bfin_serial_port *)port; |
67 | struct circ_buf *xmit = &uart->port.info->xmit; | 67 | struct circ_buf *xmit = &uart->port.info->xmit; |
68 | #if !defined(CONFIG_BF54x) && !defined(CONFIG_SERIAL_BFIN_DMA) | ||
69 | unsigned short ier; | ||
70 | #endif | ||
71 | 68 | ||
72 | while (!(UART_GET_LSR(uart) & TEMT)) | 69 | while (!(UART_GET_LSR(uart) & TEMT)) |
73 | cpu_relax(); | 70 | cpu_relax(); |
@@ -82,12 +79,8 @@ static void bfin_serial_stop_tx(struct uart_port *port) | |||
82 | #ifdef CONFIG_BF54x | 79 | #ifdef CONFIG_BF54x |
83 | /* Clear TFI bit */ | 80 | /* Clear TFI bit */ |
84 | UART_PUT_LSR(uart, TFI); | 81 | UART_PUT_LSR(uart, TFI); |
85 | UART_CLEAR_IER(uart, ETBEI); | ||
86 | #else | ||
87 | ier = UART_GET_IER(uart); | ||
88 | ier &= ~ETBEI; | ||
89 | UART_PUT_IER(uart, ier); | ||
90 | #endif | 82 | #endif |
83 | UART_CLEAR_IER(uart, ETBEI); | ||
91 | #endif | 84 | #endif |
92 | } | 85 | } |
93 | 86 | ||
@@ -102,14 +95,7 @@ static void bfin_serial_start_tx(struct uart_port *port) | |||
102 | if (uart->tx_done) | 95 | if (uart->tx_done) |
103 | bfin_serial_dma_tx_chars(uart); | 96 | bfin_serial_dma_tx_chars(uart); |
104 | #else | 97 | #else |
105 | #ifdef CONFIG_BF54x | ||
106 | UART_SET_IER(uart, ETBEI); | 98 | UART_SET_IER(uart, ETBEI); |
107 | #else | ||
108 | unsigned short ier; | ||
109 | ier = UART_GET_IER(uart); | ||
110 | ier |= ETBEI; | ||
111 | UART_PUT_IER(uart, ier); | ||
112 | #endif | ||
113 | bfin_serial_tx_chars(uart); | 99 | bfin_serial_tx_chars(uart); |
114 | #endif | 100 | #endif |
115 | } | 101 | } |
@@ -120,21 +106,10 @@ static void bfin_serial_start_tx(struct uart_port *port) | |||
120 | static void bfin_serial_stop_rx(struct uart_port *port) | 106 | static void bfin_serial_stop_rx(struct uart_port *port) |
121 | { | 107 | { |
122 | struct bfin_serial_port *uart = (struct bfin_serial_port *)port; | 108 | struct bfin_serial_port *uart = (struct bfin_serial_port *)port; |
123 | #ifdef CONFIG_KGDB_UART | 109 | #ifdef CONFIG_KGDB_UART |
124 | if (uart->port.line != CONFIG_KGDB_UART_PORT) { | 110 | if (uart->port.line != CONFIG_KGDB_UART_PORT) |
125 | #endif | 111 | #endif |
126 | #ifdef CONFIG_BF54x | ||
127 | UART_CLEAR_IER(uart, ERBFI); | 112 | UART_CLEAR_IER(uart, ERBFI); |
128 | #else | ||
129 | unsigned short ier; | ||
130 | |||
131 | ier = UART_GET_IER(uart); | ||
132 | ier &= ~ERBFI; | ||
133 | UART_PUT_IER(uart, ier); | ||
134 | #endif | ||
135 | #ifdef CONFIG_KGDB_UART | ||
136 | } | ||
137 | #endif | ||
138 | } | 113 | } |
139 | 114 | ||
140 | /* | 115 | /* |
@@ -161,10 +136,7 @@ void kgdb_put_debug_char(int chr) | |||
161 | SSYNC(); | 136 | SSYNC(); |
162 | } | 137 | } |
163 | 138 | ||
164 | #ifndef CONFIG_BF54x | 139 | UART_CLEAR_DLAB(uart); |
165 | UART_PUT_LCR(uart, UART_GET_LCR(uart)&(~DLAB)); | ||
166 | SSYNC(); | ||
167 | #endif | ||
168 | UART_PUT_CHAR(uart, (unsigned char)chr); | 140 | UART_PUT_CHAR(uart, (unsigned char)chr); |
169 | SSYNC(); | 141 | SSYNC(); |
170 | } | 142 | } |
@@ -183,10 +155,7 @@ int kgdb_get_debug_char(void) | |||
183 | while(!(UART_GET_LSR(uart) & DR)) { | 155 | while(!(UART_GET_LSR(uart) & DR)) { |
184 | SSYNC(); | 156 | SSYNC(); |
185 | } | 157 | } |
186 | #ifndef CONFIG_BF54x | 158 | UART_CLEAR_DLAB(uart); |
187 | UART_PUT_LCR(uart, UART_GET_LCR(uart)&(~DLAB)); | ||
188 | SSYNC(); | ||
189 | #endif | ||
190 | chr = UART_GET_CHAR(uart); | 159 | chr = UART_GET_CHAR(uart); |
191 | SSYNC(); | 160 | SSYNC(); |
192 | 161 | ||
@@ -208,9 +177,6 @@ static void bfin_serial_rx_chars(struct bfin_serial_port *uart) | |||
208 | struct tty_struct *tty = uart->port.info->tty; | 177 | struct tty_struct *tty = uart->port.info->tty; |
209 | unsigned int status, ch, flg; | 178 | unsigned int status, ch, flg; |
210 | static struct timeval anomaly_start = { .tv_sec = 0 }; | 179 | static struct timeval anomaly_start = { .tv_sec = 0 }; |
211 | #ifdef CONFIG_KGDB_UART | ||
212 | struct pt_regs *regs = get_irq_regs(); | ||
213 | #endif | ||
214 | 180 | ||
215 | status = UART_GET_LSR(uart); | 181 | status = UART_GET_LSR(uart); |
216 | UART_CLEAR_LSR(uart); | 182 | UART_CLEAR_LSR(uart); |
@@ -220,6 +186,7 @@ static void bfin_serial_rx_chars(struct bfin_serial_port *uart) | |||
220 | 186 | ||
221 | #ifdef CONFIG_KGDB_UART | 187 | #ifdef CONFIG_KGDB_UART |
222 | if (uart->port.line == CONFIG_KGDB_UART_PORT) { | 188 | if (uart->port.line == CONFIG_KGDB_UART_PORT) { |
189 | struct pt_regs *regs = get_irq_regs(); | ||
223 | if (uart->port.cons->index == CONFIG_KGDB_UART_PORT && ch == 0x1) { /* Ctrl + A */ | 190 | if (uart->port.cons->index == CONFIG_KGDB_UART_PORT && ch == 0x1) { /* Ctrl + A */ |
224 | kgdb_breakkey_pressed(regs); | 191 | kgdb_breakkey_pressed(regs); |
225 | return; | 192 | return; |
@@ -391,7 +358,6 @@ static void bfin_serial_do_work(struct work_struct *work) | |||
391 | static void bfin_serial_dma_tx_chars(struct bfin_serial_port *uart) | 358 | static void bfin_serial_dma_tx_chars(struct bfin_serial_port *uart) |
392 | { | 359 | { |
393 | struct circ_buf *xmit = &uart->port.info->xmit; | 360 | struct circ_buf *xmit = &uart->port.info->xmit; |
394 | unsigned short ier; | ||
395 | 361 | ||
396 | uart->tx_done = 0; | 362 | uart->tx_done = 0; |
397 | 363 | ||
@@ -429,13 +395,7 @@ static void bfin_serial_dma_tx_chars(struct bfin_serial_port *uart) | |||
429 | set_dma_x_modify(uart->tx_dma_channel, 1); | 395 | set_dma_x_modify(uart->tx_dma_channel, 1); |
430 | enable_dma(uart->tx_dma_channel); | 396 | enable_dma(uart->tx_dma_channel); |
431 | 397 | ||
432 | #ifdef CONFIG_BF54x | ||
433 | UART_SET_IER(uart, ETBEI); | 398 | UART_SET_IER(uart, ETBEI); |
434 | #else | ||
435 | ier = UART_GET_IER(uart); | ||
436 | ier |= ETBEI; | ||
437 | UART_PUT_IER(uart, ier); | ||
438 | #endif | ||
439 | } | 399 | } |
440 | 400 | ||
441 | static void bfin_serial_dma_rx_chars(struct bfin_serial_port *uart) | 401 | static void bfin_serial_dma_rx_chars(struct bfin_serial_port *uart) |
@@ -513,19 +473,12 @@ static irqreturn_t bfin_serial_dma_tx_int(int irq, void *dev_id) | |||
513 | { | 473 | { |
514 | struct bfin_serial_port *uart = dev_id; | 474 | struct bfin_serial_port *uart = dev_id; |
515 | struct circ_buf *xmit = &uart->port.info->xmit; | 475 | struct circ_buf *xmit = &uart->port.info->xmit; |
516 | unsigned short ier; | ||
517 | 476 | ||
518 | spin_lock(&uart->port.lock); | 477 | spin_lock(&uart->port.lock); |
519 | if (!(get_dma_curr_irqstat(uart->tx_dma_channel)&DMA_RUN)) { | 478 | if (!(get_dma_curr_irqstat(uart->tx_dma_channel)&DMA_RUN)) { |
520 | disable_dma(uart->tx_dma_channel); | 479 | disable_dma(uart->tx_dma_channel); |
521 | clear_dma_irqstat(uart->tx_dma_channel); | 480 | clear_dma_irqstat(uart->tx_dma_channel); |
522 | #ifdef CONFIG_BF54x | ||
523 | UART_CLEAR_IER(uart, ETBEI); | 481 | UART_CLEAR_IER(uart, ETBEI); |
524 | #else | ||
525 | ier = UART_GET_IER(uart); | ||
526 | ier &= ~ETBEI; | ||
527 | UART_PUT_IER(uart, ier); | ||
528 | #endif | ||
529 | xmit->tail = (xmit->tail + uart->tx_count) & (UART_XMIT_SIZE - 1); | 482 | xmit->tail = (xmit->tail + uart->tx_count) & (UART_XMIT_SIZE - 1); |
530 | uart->port.icount.tx += uart->tx_count; | 483 | uart->port.icount.tx += uart->tx_count; |
531 | 484 | ||
@@ -701,7 +654,6 @@ static int bfin_serial_startup(struct uart_port *port) | |||
701 | # endif | 654 | # endif |
702 | } | 655 | } |
703 | 656 | ||
704 | |||
705 | if (request_irq | 657 | if (request_irq |
706 | (uart->port.irq+1, bfin_serial_tx_int, IRQF_DISABLED, | 658 | (uart->port.irq+1, bfin_serial_tx_int, IRQF_DISABLED, |
707 | "BFIN_UART_TX", uart)) { | 659 | "BFIN_UART_TX", uart)) { |
@@ -710,11 +662,7 @@ static int bfin_serial_startup(struct uart_port *port) | |||
710 | return -EBUSY; | 662 | return -EBUSY; |
711 | } | 663 | } |
712 | #endif | 664 | #endif |
713 | #ifdef CONFIG_BF54x | ||
714 | UART_SET_IER(uart, ERBFI); | 665 | UART_SET_IER(uart, ERBFI); |
715 | #else | ||
716 | UART_PUT_IER(uart, UART_GET_IER(uart) | ERBFI); | ||
717 | #endif | ||
718 | return 0; | 666 | return 0; |
719 | } | 667 | } |
720 | 668 | ||
@@ -810,26 +758,15 @@ bfin_serial_set_termios(struct uart_port *port, struct ktermios *termios, | |||
810 | UART_PUT_IER(uart, 0); | 758 | UART_PUT_IER(uart, 0); |
811 | #endif | 759 | #endif |
812 | 760 | ||
813 | #ifndef CONFIG_BF54x | ||
814 | /* Set DLAB in LCR to Access DLL and DLH */ | 761 | /* Set DLAB in LCR to Access DLL and DLH */ |
815 | val = UART_GET_LCR(uart); | 762 | UART_SET_DLAB(uart); |
816 | val |= DLAB; | ||
817 | UART_PUT_LCR(uart, val); | ||
818 | SSYNC(); | ||
819 | #endif | ||
820 | 763 | ||
821 | UART_PUT_DLL(uart, quot & 0xFF); | 764 | UART_PUT_DLL(uart, quot & 0xFF); |
822 | SSYNC(); | ||
823 | UART_PUT_DLH(uart, (quot >> 8) & 0xFF); | 765 | UART_PUT_DLH(uart, (quot >> 8) & 0xFF); |
824 | SSYNC(); | 766 | SSYNC(); |
825 | 767 | ||
826 | #ifndef CONFIG_BF54x | ||
827 | /* Clear DLAB in LCR to Access THR RBR IER */ | 768 | /* Clear DLAB in LCR to Access THR RBR IER */ |
828 | val = UART_GET_LCR(uart); | 769 | UART_CLEAR_DLAB(uart); |
829 | val &= ~DLAB; | ||
830 | UART_PUT_LCR(uart, val); | ||
831 | SSYNC(); | ||
832 | #endif | ||
833 | 770 | ||
834 | UART_PUT_LCR(uart, lcr); | 771 | UART_PUT_LCR(uart, lcr); |
835 | 772 | ||
@@ -992,8 +929,7 @@ bfin_serial_console_get_options(struct bfin_serial_port *uart, int *baud, | |||
992 | status = UART_GET_IER(uart) & (ERBFI | ETBEI); | 929 | status = UART_GET_IER(uart) & (ERBFI | ETBEI); |
993 | if (status == (ERBFI | ETBEI)) { | 930 | if (status == (ERBFI | ETBEI)) { |
994 | /* ok, the port was enabled */ | 931 | /* ok, the port was enabled */ |
995 | unsigned short lcr, val; | 932 | u16 lcr, dlh, dll; |
996 | unsigned short dlh, dll; | ||
997 | 933 | ||
998 | lcr = UART_GET_LCR(uart); | 934 | lcr = UART_GET_LCR(uart); |
999 | 935 | ||
@@ -1010,22 +946,14 @@ bfin_serial_console_get_options(struct bfin_serial_port *uart, int *baud, | |||
1010 | case 2: *bits = 7; break; | 946 | case 2: *bits = 7; break; |
1011 | case 3: *bits = 8; break; | 947 | case 3: *bits = 8; break; |
1012 | } | 948 | } |
1013 | #ifndef CONFIG_BF54x | ||
1014 | /* Set DLAB in LCR to Access DLL and DLH */ | 949 | /* Set DLAB in LCR to Access DLL and DLH */ |
1015 | val = UART_GET_LCR(uart); | 950 | UART_SET_DLAB(uart); |
1016 | val |= DLAB; | ||
1017 | UART_PUT_LCR(uart, val); | ||
1018 | #endif | ||
1019 | 951 | ||
1020 | dll = UART_GET_DLL(uart); | 952 | dll = UART_GET_DLL(uart); |
1021 | dlh = UART_GET_DLH(uart); | 953 | dlh = UART_GET_DLH(uart); |
1022 | 954 | ||
1023 | #ifndef CONFIG_BF54x | ||
1024 | /* Clear DLAB in LCR to Access THR RBR IER */ | 955 | /* Clear DLAB in LCR to Access THR RBR IER */ |
1025 | val = UART_GET_LCR(uart); | 956 | UART_CLEAR_DLAB(uart); |
1026 | val &= ~DLAB; | ||
1027 | UART_PUT_LCR(uart, val); | ||
1028 | #endif | ||
1029 | 957 | ||
1030 | *baud = get_sclk() / (16*(dll | dlh << 8)); | 958 | *baud = get_sclk() / (16*(dll | dlh << 8)); |
1031 | } | 959 | } |
@@ -1290,11 +1218,7 @@ static int __init bfin_serial_init(void) | |||
1290 | request_irq(uart->port.irq, bfin_serial_rx_int, | 1218 | request_irq(uart->port.irq, bfin_serial_rx_int, |
1291 | IRQF_DISABLED, "BFIN_UART_RX", uart); | 1219 | IRQF_DISABLED, "BFIN_UART_RX", uart); |
1292 | pr_info("Request irq for kgdb uart port\n"); | 1220 | pr_info("Request irq for kgdb uart port\n"); |
1293 | #ifdef CONFIG_BF54x | ||
1294 | UART_SET_IER(uart, ERBFI); | 1221 | UART_SET_IER(uart, ERBFI); |
1295 | #else | ||
1296 | UART_PUT_IER(uart, UART_GET_IER(uart) | ERBFI); | ||
1297 | #endif | ||
1298 | SSYNC(); | 1222 | SSYNC(); |
1299 | t.c_cflag = CS8|B57600; | 1223 | t.c_cflag = CS8|B57600; |
1300 | t.c_iflag = 0; | 1224 | t.c_iflag = 0; |