Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * linux/include/asm-arm/hardware/serial_amba.h |
| 3 | * |
| 4 | * Internal header file for AMBA serial ports |
| 5 | * |
| 6 | * Copyright (C) ARM Limited |
| 7 | * Copyright (C) 2000 Deep Blue Solutions Ltd. |
| 8 | * |
| 9 | * This program is free software; you can redistribute it and/or modify |
| 10 | * it under the terms of the GNU General Public License as published by |
| 11 | * the Free Software Foundation; either version 2 of the License, or |
| 12 | * (at your option) any later version. |
| 13 | * |
| 14 | * This program is distributed in the hope that it will be useful, |
| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 17 | * GNU General Public License for more details. |
| 18 | * |
| 19 | * You should have received a copy of the GNU General Public License |
| 20 | * along with this program; if not, write to the Free Software |
| 21 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 22 | */ |
| 23 | #ifndef ASM_ARM_HARDWARE_SERIAL_AMBA_H |
| 24 | #define ASM_ARM_HARDWARE_SERIAL_AMBA_H |
| 25 | |
| 26 | /* ------------------------------------------------------------------------------- |
| 27 | * From AMBA UART (PL010) Block Specification |
| 28 | * ------------------------------------------------------------------------------- |
| 29 | * UART Register Offsets. |
| 30 | */ |
| 31 | #define UART01x_DR 0x00 /* Data read or written from the interface. */ |
| 32 | #define UART01x_RSR 0x04 /* Receive status register (Read). */ |
| 33 | #define UART01x_ECR 0x04 /* Error clear register (Write). */ |
| 34 | #define UART010_LCRH 0x08 /* Line control register, high byte. */ |
Linus Walleij | 29e29f2 | 2010-10-01 09:15:41 +0100 | [diff] [blame] | 35 | #define ST_UART011_DMAWM 0x08 /* DMA watermark configure register. */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 36 | #define UART010_LCRM 0x0C /* Line control register, middle byte. */ |
Linus Walleij | 29e29f2 | 2010-10-01 09:15:41 +0100 | [diff] [blame] | 37 | #define ST_UART011_TIMEOUT 0x0C /* Timeout period register. */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 38 | #define UART010_LCRL 0x10 /* Line control register, low byte. */ |
| 39 | #define UART010_CR 0x14 /* Control register. */ |
| 40 | #define UART01x_FR 0x18 /* Flag register (Read only). */ |
| 41 | #define UART010_IIR 0x1C /* Interrupt indentification register (Read). */ |
| 42 | #define UART010_ICR 0x1C /* Interrupt clear register (Write). */ |
Linus Walleij | ec489aa | 2010-06-02 08:13:52 +0100 | [diff] [blame] | 43 | #define ST_UART011_LCRH_RX 0x1C /* Rx line control register. */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 44 | #define UART01x_ILPR 0x20 /* IrDA low power counter register. */ |
| 45 | #define UART011_IBRD 0x24 /* Integer baud rate divisor register. */ |
| 46 | #define UART011_FBRD 0x28 /* Fractional baud rate divisor register. */ |
| 47 | #define UART011_LCRH 0x2c /* Line control register. */ |
Linus Walleij | ec489aa | 2010-06-02 08:13:52 +0100 | [diff] [blame] | 48 | #define ST_UART011_LCRH_TX 0x2c /* Tx Line control register. */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 49 | #define UART011_CR 0x30 /* Control register. */ |
| 50 | #define UART011_IFLS 0x34 /* Interrupt fifo level select. */ |
| 51 | #define UART011_IMSC 0x38 /* Interrupt mask. */ |
| 52 | #define UART011_RIS 0x3c /* Raw interrupt status. */ |
| 53 | #define UART011_MIS 0x40 /* Masked interrupt status. */ |
| 54 | #define UART011_ICR 0x44 /* Interrupt clear register. */ |
| 55 | #define UART011_DMACR 0x48 /* DMA control register. */ |
Linus Walleij | 29e29f2 | 2010-10-01 09:15:41 +0100 | [diff] [blame] | 56 | #define ST_UART011_XFCR 0x50 /* XON/XOFF control register. */ |
| 57 | #define ST_UART011_XON1 0x54 /* XON1 register. */ |
| 58 | #define ST_UART011_XON2 0x58 /* XON2 register. */ |
| 59 | #define ST_UART011_XOFF1 0x5C /* XON1 register. */ |
| 60 | #define ST_UART011_XOFF2 0x60 /* XON2 register. */ |
| 61 | #define ST_UART011_ITCR 0x80 /* Integration test control register. */ |
| 62 | #define ST_UART011_ITIP 0x84 /* Integration test input register. */ |
| 63 | #define ST_UART011_ABCR 0x100 /* Autobaud control register. */ |
| 64 | #define ST_UART011_ABIMSC 0x15C /* Autobaud interrupt mask/clear register. */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 65 | |
Russell King | b63d4f0 | 2005-11-19 11:10:35 +0000 | [diff] [blame] | 66 | #define UART011_DR_OE (1 << 11) |
| 67 | #define UART011_DR_BE (1 << 10) |
| 68 | #define UART011_DR_PE (1 << 9) |
| 69 | #define UART011_DR_FE (1 << 8) |
| 70 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 71 | #define UART01x_RSR_OE 0x08 |
| 72 | #define UART01x_RSR_BE 0x04 |
| 73 | #define UART01x_RSR_PE 0x02 |
| 74 | #define UART01x_RSR_FE 0x01 |
| 75 | |
| 76 | #define UART011_FR_RI 0x100 |
| 77 | #define UART011_FR_TXFE 0x080 |
| 78 | #define UART011_FR_RXFF 0x040 |
| 79 | #define UART01x_FR_TXFF 0x020 |
| 80 | #define UART01x_FR_RXFE 0x010 |
| 81 | #define UART01x_FR_BUSY 0x008 |
| 82 | #define UART01x_FR_DCD 0x004 |
| 83 | #define UART01x_FR_DSR 0x002 |
| 84 | #define UART01x_FR_CTS 0x001 |
| 85 | #define UART01x_FR_TMSK (UART01x_FR_TXFF + UART01x_FR_BUSY) |
| 86 | |
| 87 | #define UART011_CR_CTSEN 0x8000 /* CTS hardware flow control */ |
| 88 | #define UART011_CR_RTSEN 0x4000 /* RTS hardware flow control */ |
| 89 | #define UART011_CR_OUT2 0x2000 /* OUT2 */ |
| 90 | #define UART011_CR_OUT1 0x1000 /* OUT1 */ |
| 91 | #define UART011_CR_RTS 0x0800 /* RTS */ |
| 92 | #define UART011_CR_DTR 0x0400 /* DTR */ |
| 93 | #define UART011_CR_RXE 0x0200 /* receive enable */ |
| 94 | #define UART011_CR_TXE 0x0100 /* transmit enable */ |
| 95 | #define UART011_CR_LBE 0x0080 /* loopback enable */ |
| 96 | #define UART010_CR_RTIE 0x0040 |
| 97 | #define UART010_CR_TIE 0x0020 |
| 98 | #define UART010_CR_RIE 0x0010 |
| 99 | #define UART010_CR_MSIE 0x0008 |
Linus Walleij | ac3e3fb | 2010-06-02 20:40:22 +0100 | [diff] [blame] | 100 | #define ST_UART011_CR_OVSFACT 0x0008 /* Oversampling factor */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 101 | #define UART01x_CR_IIRLP 0x0004 /* SIR low power mode */ |
| 102 | #define UART01x_CR_SIREN 0x0002 /* SIR enable */ |
| 103 | #define UART01x_CR_UARTEN 0x0001 /* UART enable */ |
| 104 | |
| 105 | #define UART011_LCRH_SPS 0x80 |
| 106 | #define UART01x_LCRH_WLEN_8 0x60 |
| 107 | #define UART01x_LCRH_WLEN_7 0x40 |
| 108 | #define UART01x_LCRH_WLEN_6 0x20 |
| 109 | #define UART01x_LCRH_WLEN_5 0x00 |
| 110 | #define UART01x_LCRH_FEN 0x10 |
| 111 | #define UART01x_LCRH_STP2 0x08 |
| 112 | #define UART01x_LCRH_EPS 0x04 |
| 113 | #define UART01x_LCRH_PEN 0x02 |
| 114 | #define UART01x_LCRH_BRK 0x01 |
| 115 | |
Russell King | 38d6243 | 2010-12-22 17:59:16 +0000 | [diff] [blame] | 116 | #define ST_UART011_DMAWM_RX_1 (0 << 3) |
| 117 | #define ST_UART011_DMAWM_RX_2 (1 << 3) |
| 118 | #define ST_UART011_DMAWM_RX_4 (2 << 3) |
| 119 | #define ST_UART011_DMAWM_RX_8 (3 << 3) |
| 120 | #define ST_UART011_DMAWM_RX_16 (4 << 3) |
| 121 | #define ST_UART011_DMAWM_RX_32 (5 << 3) |
| 122 | #define ST_UART011_DMAWM_RX_48 (6 << 3) |
| 123 | #define ST_UART011_DMAWM_TX_1 0 |
| 124 | #define ST_UART011_DMAWM_TX_2 1 |
| 125 | #define ST_UART011_DMAWM_TX_4 2 |
| 126 | #define ST_UART011_DMAWM_TX_8 3 |
| 127 | #define ST_UART011_DMAWM_TX_16 4 |
| 128 | #define ST_UART011_DMAWM_TX_32 5 |
| 129 | #define ST_UART011_DMAWM_TX_48 6 |
| 130 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 131 | #define UART010_IIR_RTIS 0x08 |
| 132 | #define UART010_IIR_TIS 0x04 |
| 133 | #define UART010_IIR_RIS 0x02 |
| 134 | #define UART010_IIR_MIS 0x01 |
| 135 | |
| 136 | #define UART011_IFLS_RX1_8 (0 << 3) |
| 137 | #define UART011_IFLS_RX2_8 (1 << 3) |
| 138 | #define UART011_IFLS_RX4_8 (2 << 3) |
| 139 | #define UART011_IFLS_RX6_8 (3 << 3) |
| 140 | #define UART011_IFLS_RX7_8 (4 << 3) |
| 141 | #define UART011_IFLS_TX1_8 (0 << 0) |
| 142 | #define UART011_IFLS_TX2_8 (1 << 0) |
| 143 | #define UART011_IFLS_TX4_8 (2 << 0) |
| 144 | #define UART011_IFLS_TX6_8 (3 << 0) |
| 145 | #define UART011_IFLS_TX7_8 (4 << 0) |
Alessandro Rubini | 5926a29 | 2009-06-04 17:43:04 +0100 | [diff] [blame] | 146 | /* special values for ST vendor with deeper fifo */ |
| 147 | #define UART011_IFLS_RX_HALF (5 << 3) |
| 148 | #define UART011_IFLS_TX_HALF (5 << 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 149 | |
| 150 | #define UART011_OEIM (1 << 10) /* overrun error interrupt mask */ |
| 151 | #define UART011_BEIM (1 << 9) /* break error interrupt mask */ |
| 152 | #define UART011_PEIM (1 << 8) /* parity error interrupt mask */ |
| 153 | #define UART011_FEIM (1 << 7) /* framing error interrupt mask */ |
| 154 | #define UART011_RTIM (1 << 6) /* receive timeout interrupt mask */ |
| 155 | #define UART011_TXIM (1 << 5) /* transmit interrupt mask */ |
| 156 | #define UART011_RXIM (1 << 4) /* receive interrupt mask */ |
| 157 | #define UART011_DSRMIM (1 << 3) /* DSR interrupt mask */ |
| 158 | #define UART011_DCDMIM (1 << 2) /* DCD interrupt mask */ |
| 159 | #define UART011_CTSMIM (1 << 1) /* CTS interrupt mask */ |
| 160 | #define UART011_RIMIM (1 << 0) /* RI interrupt mask */ |
| 161 | |
| 162 | #define UART011_OEIS (1 << 10) /* overrun error interrupt status */ |
| 163 | #define UART011_BEIS (1 << 9) /* break error interrupt status */ |
| 164 | #define UART011_PEIS (1 << 8) /* parity error interrupt status */ |
| 165 | #define UART011_FEIS (1 << 7) /* framing error interrupt status */ |
| 166 | #define UART011_RTIS (1 << 6) /* receive timeout interrupt status */ |
| 167 | #define UART011_TXIS (1 << 5) /* transmit interrupt status */ |
| 168 | #define UART011_RXIS (1 << 4) /* receive interrupt status */ |
| 169 | #define UART011_DSRMIS (1 << 3) /* DSR interrupt status */ |
| 170 | #define UART011_DCDMIS (1 << 2) /* DCD interrupt status */ |
| 171 | #define UART011_CTSMIS (1 << 1) /* CTS interrupt status */ |
| 172 | #define UART011_RIMIS (1 << 0) /* RI interrupt status */ |
| 173 | |
| 174 | #define UART011_OEIC (1 << 10) /* overrun error interrupt clear */ |
| 175 | #define UART011_BEIC (1 << 9) /* break error interrupt clear */ |
| 176 | #define UART011_PEIC (1 << 8) /* parity error interrupt clear */ |
| 177 | #define UART011_FEIC (1 << 7) /* framing error interrupt clear */ |
| 178 | #define UART011_RTIC (1 << 6) /* receive timeout interrupt clear */ |
| 179 | #define UART011_TXIC (1 << 5) /* transmit interrupt clear */ |
| 180 | #define UART011_RXIC (1 << 4) /* receive interrupt clear */ |
| 181 | #define UART011_DSRMIC (1 << 3) /* DSR interrupt clear */ |
| 182 | #define UART011_DCDMIC (1 << 2) /* DCD interrupt clear */ |
| 183 | #define UART011_CTSMIC (1 << 1) /* CTS interrupt clear */ |
| 184 | #define UART011_RIMIC (1 << 0) /* RI interrupt clear */ |
| 185 | |
| 186 | #define UART011_DMAONERR (1 << 2) /* disable dma on error */ |
| 187 | #define UART011_TXDMAE (1 << 1) /* enable transmit dma */ |
| 188 | #define UART011_RXDMAE (1 << 0) /* enable receive dma */ |
| 189 | |
| 190 | #define UART01x_RSR_ANY (UART01x_RSR_OE|UART01x_RSR_BE|UART01x_RSR_PE|UART01x_RSR_FE) |
| 191 | #define UART01x_FR_MODEM_ANY (UART01x_FR_DCD|UART01x_FR_DSR|UART01x_FR_CTS) |
| 192 | |
Russell King | fbb18a2 | 2006-03-26 23:13:39 +0100 | [diff] [blame] | 193 | #ifndef __ASSEMBLY__ |
Alessandro Rubini | aa853f8 | 2009-06-06 10:17:57 +0100 | [diff] [blame] | 194 | struct amba_device; /* in uncompress this is included but amba/bus.h is not */ |
Russell King | fbb18a2 | 2006-03-26 23:13:39 +0100 | [diff] [blame] | 195 | struct amba_pl010_data { |
| 196 | void (*set_mctrl)(struct amba_device *dev, void __iomem *base, unsigned int mctrl); |
| 197 | }; |
Russell King | 68b65f7 | 2010-12-22 17:24:39 +0000 | [diff] [blame] | 198 | |
| 199 | struct dma_chan; |
| 200 | struct amba_pl011_data { |
| 201 | bool (*dma_filter)(struct dma_chan *chan, void *filter_param); |
| 202 | void *dma_rx_param; |
| 203 | void *dma_tx_param; |
Shreshtha Kumar Sahu | c16d51a | 2011-06-13 10:11:33 +0200 | [diff] [blame] | 204 | void (*init) (void); |
| 205 | void (*exit) (void); |
| 206 | void (*reset) (void); |
Russell King | 68b65f7 | 2010-12-22 17:24:39 +0000 | [diff] [blame] | 207 | }; |
Russell King | fbb18a2 | 2006-03-26 23:13:39 +0100 | [diff] [blame] | 208 | #endif |
| 209 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 210 | #endif |