diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-generic/vmlinux.lds.h | 9 | ||||
| -rw-r--r-- | include/linux/console.h | 3 | ||||
| -rw-r--r-- | include/linux/dma/hsu.h | 48 | ||||
| -rw-r--r-- | include/linux/platform_data/dma-hsu.h | 25 | ||||
| -rw-r--r-- | include/linux/platform_data/msm_serial_hs.h | 49 | ||||
| -rw-r--r-- | include/linux/platform_data/serial-imx.h | 5 | ||||
| -rw-r--r-- | include/linux/serial_8250.h | 20 | ||||
| -rw-r--r-- | include/linux/serial_core.h | 23 | ||||
| -rw-r--r-- | include/linux/serial_mfd.h | 47 | ||||
| -rw-r--r-- | include/uapi/linux/serial_reg.h | 19 |
10 files changed, 115 insertions, 133 deletions
diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h index 5c48c58514e5..8bd374d3cf21 100644 --- a/include/asm-generic/vmlinux.lds.h +++ b/include/asm-generic/vmlinux.lds.h @@ -153,6 +153,14 @@ #define TRACE_SYSCALLS() #endif +#ifdef CONFIG_SERIAL_EARLYCON +#define EARLYCON_TABLE() STRUCT_ALIGN(); \ + VMLINUX_SYMBOL(__earlycon_table) = .; \ + *(__earlycon_table) \ + *(__earlycon_table_end) +#else +#define EARLYCON_TABLE() +#endif #define ___OF_TABLE(cfg, name) _OF_TABLE_##cfg(name) #define __OF_TABLE(cfg, name) ___OF_TABLE(cfg, name) @@ -508,6 +516,7 @@ CPUIDLE_METHOD_OF_TABLES() \ KERNEL_DTB() \ IRQCHIP_OF_MATCH_TABLE() \ + EARLYCON_TABLE() \ EARLYCON_OF_TABLES() #define INIT_TEXT \ diff --git a/include/linux/console.h b/include/linux/console.h index 7571a16bd653..9f50fb413c11 100644 --- a/include/linux/console.h +++ b/include/linux/console.h @@ -123,7 +123,7 @@ struct console { struct tty_driver *(*device)(struct console *, int *); void (*unblank)(void); int (*setup)(struct console *, char *); - int (*early_setup)(void); + int (*match)(struct console *, char *name, int idx, char *options); short flags; short index; int cflag; @@ -141,7 +141,6 @@ extern int console_set_on_cmdline; extern struct console *early_console; extern int add_preferred_console(char *name, int idx, char *options); -extern int update_console_cmdline(char *name, int idx, char *name_new, int idx_new, char *options); extern void register_console(struct console *); extern int unregister_console(struct console *); extern struct console *console_drivers; diff --git a/include/linux/dma/hsu.h b/include/linux/dma/hsu.h new file mode 100644 index 000000000000..234393a6997b --- /dev/null +++ b/include/linux/dma/hsu.h @@ -0,0 +1,48 @@ +/* + * Driver for the High Speed UART DMA + * + * Copyright (C) 2015 Intel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef _DMA_HSU_H +#define _DMA_HSU_H + +#include <linux/device.h> +#include <linux/interrupt.h> + +#include <linux/platform_data/dma-hsu.h> + +struct hsu_dma; + +/** + * struct hsu_dma_chip - representation of HSU DMA hardware + * @dev: struct device of the DMA controller + * @irq: irq line + * @regs: memory mapped I/O space + * @length: I/O space length + * @offset: offset of the I/O space where registers are located + * @hsu: struct hsu_dma that is filed by ->probe() + * @pdata: platform data for the DMA controller if provided + */ +struct hsu_dma_chip { + struct device *dev; + int irq; + void __iomem *regs; + unsigned int length; + unsigned int offset; + struct hsu_dma *hsu; + struct hsu_dma_platform_data *pdata; +}; + +/* Export to the internal users */ +irqreturn_t hsu_dma_irq(struct hsu_dma_chip *chip, unsigned short nr); + +/* Export to the platform drivers */ +int hsu_dma_probe(struct hsu_dma_chip *chip); +int hsu_dma_remove(struct hsu_dma_chip *chip); + +#endif /* _DMA_HSU_H */ diff --git a/include/linux/platform_data/dma-hsu.h b/include/linux/platform_data/dma-hsu.h new file mode 100644 index 000000000000..8a1f6a4920b2 --- /dev/null +++ b/include/linux/platform_data/dma-hsu.h @@ -0,0 +1,25 @@ +/* + * Driver for the High Speed UART DMA + * + * Copyright (C) 2015 Intel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef _PLATFORM_DATA_DMA_HSU_H +#define _PLATFORM_DATA_DMA_HSU_H + +#include <linux/device.h> + +struct hsu_dma_slave { + struct device *dma_dev; + int chan_id; +}; + +struct hsu_dma_platform_data { + unsigned short nr_channels; +}; + +#endif /* _PLATFORM_DATA_DMA_HSU_H */ diff --git a/include/linux/platform_data/msm_serial_hs.h b/include/linux/platform_data/msm_serial_hs.h deleted file mode 100644 index 98a2046f8b31..000000000000 --- a/include/linux/platform_data/msm_serial_hs.h +++ /dev/null @@ -1,49 +0,0 @@ -/* - * Copyright (C) 2008 Google, Inc. - * Author: Nick Pelly <npelly@google.com> - * - * This software is licensed under the terms of the GNU General Public - * License version 2, as published by the Free Software Foundation, and - * may be copied, distributed, and modified under those terms. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - */ - -#ifndef __ASM_ARCH_MSM_SERIAL_HS_H -#define __ASM_ARCH_MSM_SERIAL_HS_H - -#include <linux/serial_core.h> - -/* API to request the uart clock off or on for low power management - * Clients should call request_clock_off() when no uart data is expected, - * and must call request_clock_on() before any further uart data can be - * received. */ -extern void msm_hs_request_clock_off(struct uart_port *uport); -extern void msm_hs_request_clock_on(struct uart_port *uport); - -/** - * struct msm_serial_hs_platform_data - * @rx_wakeup_irq: Rx activity irq - * @rx_to_inject: extra character to be inserted to Rx tty on wakeup - * @inject_rx: 1 = insert rx_to_inject. 0 = do not insert extra character - * @exit_lpm_cb: function called before every Tx transaction - * - * This is an optional structure required for UART Rx GPIO IRQ based - * wakeup from low power state. UART wakeup can be triggered by RX activity - * (using a wakeup GPIO on the UART RX pin). This should only be used if - * there is not a wakeup GPIO on the UART CTS, and the first RX byte is - * known (eg., with the Bluetooth Texas Instruments HCILL protocol), - * since the first RX byte will always be lost. RTS will be asserted even - * while the UART is clocked off in this mode of operation. - */ -struct msm_serial_hs_platform_data { - int rx_wakeup_irq; - unsigned char inject_rx_on_wakeup; - char rx_to_inject; - void (*exit_lpm_cb)(struct uart_port *); -}; - -#endif diff --git a/include/linux/platform_data/serial-imx.h b/include/linux/platform_data/serial-imx.h index 3cc2e3c40914..a938eba2f18e 100644 --- a/include/linux/platform_data/serial-imx.h +++ b/include/linux/platform_data/serial-imx.h @@ -20,14 +20,9 @@ #define ASMARM_ARCH_UART_H #define IMXUART_HAVE_RTSCTS (1<<0) -#define IMXUART_IRDA (1<<1) struct imxuart_platform_data { unsigned int flags; - void (*irda_enable)(int enable); - unsigned int irda_inv_rx:1; - unsigned int irda_inv_tx:1; - unsigned short transceiver_delay; }; #endif diff --git a/include/linux/serial_8250.h b/include/linux/serial_8250.h index a8efa235b7c1..78097e7a330a 100644 --- a/include/linux/serial_8250.h +++ b/include/linux/serial_8250.h @@ -60,6 +60,20 @@ enum { }; struct uart_8250_dma; +struct uart_8250_port; + +/** + * 8250 core driver operations + * + * @setup_irq() Setup irq handling. The universal 8250 driver links this + * port to the irq chain. Other drivers may @request_irq(). + * @release_irq() Undo irq handling. The universal 8250 driver unlinks + * the port from the irq chain. + */ +struct uart_8250_ops { + int (*setup_irq)(struct uart_8250_port *); + void (*release_irq)(struct uart_8250_port *); +}; /* * This should be used by drivers which want to register @@ -88,6 +102,8 @@ struct uart_8250_port { unsigned char canary; /* non-zero during system sleep * if no_console_suspend */ + unsigned char probe; +#define UART_PROBE_RSA (1 << 0) /* * Some bits in registers are cleared on a read, so they must @@ -100,6 +116,7 @@ struct uart_8250_port { unsigned char msr_saved_flags; struct uart_8250_dma *dma; + const struct uart_8250_ops *ops; /* 8250 specific callbacks */ int (*dl_read)(struct uart_8250_port *); @@ -118,11 +135,8 @@ void serial8250_resume_port(int line); extern int early_serial_setup(struct uart_port *port); -extern int serial8250_find_port(struct uart_port *p); -extern int serial8250_find_port_for_earlycon(void); extern unsigned int serial8250_early_in(struct uart_port *port, int offset); extern void serial8250_early_out(struct uart_port *port, int offset, int value); -extern int setup_early_serial8250_console(char *cmdline); extern void serial8250_do_set_termios(struct uart_port *port, struct ktermios *termios, struct ktermios *old); extern int serial8250_do_startup(struct uart_port *port); diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h index d10965f0d8a4..025dad9dcde4 100644 --- a/include/linux/serial_core.h +++ b/include/linux/serial_core.h @@ -235,7 +235,9 @@ struct uart_port { const struct uart_ops *ops; unsigned int custom_divisor; unsigned int line; /* port index */ + unsigned int minor; resource_size_t mapbase; /* for ioremap */ + resource_size_t mapsize; struct device *dev; /* parent device */ unsigned char hub6; /* this should be in the 8250 driver */ unsigned char suspended; @@ -336,24 +338,29 @@ struct earlycon_device { char options[16]; /* e.g., 115200n8 */ unsigned int baud; }; -int setup_earlycon(char *buf, const char *match, - int (*setup)(struct earlycon_device *, const char *)); +struct earlycon_id { + char name[16]; + int (*setup)(struct earlycon_device *, const char *options); +} __aligned(32); + +extern int setup_earlycon(char *buf); extern int of_setup_earlycon(unsigned long addr, int (*setup)(struct earlycon_device *, const char *)); -#define EARLYCON_DECLARE(name, func) \ -static int __init name ## _setup_earlycon(char *buf) \ -{ \ - return setup_earlycon(buf, __stringify(name), func); \ -} \ -early_param("earlycon", name ## _setup_earlycon); +#define EARLYCON_DECLARE(_name, func) \ + static const struct earlycon_id __earlycon_##_name \ + __used __section(__earlycon_table) \ + = { .name = __stringify(_name), \ + .setup = func } #define OF_EARLYCON_DECLARE(name, compat, fn) \ _OF_DECLARE(earlycon, name, compat, fn, void *) struct uart_port *uart_get_console(struct uart_port *ports, int nr, struct console *c); +int uart_parse_earlycon(char *p, unsigned char *iotype, unsigned long *addr, + char **options); void uart_parse_options(char *options, int *baud, int *parity, int *bits, int *flow); int uart_set_options(struct uart_port *port, struct console *co, int baud, diff --git a/include/linux/serial_mfd.h b/include/linux/serial_mfd.h deleted file mode 100644 index 2b071e0b034d..000000000000 --- a/include/linux/serial_mfd.h +++ /dev/null @@ -1,47 +0,0 @@ -#ifndef _SERIAL_MFD_H_ -#define _SERIAL_MFD_H_ - -/* HW register offset definition */ -#define UART_FOR 0x08 -#define UART_PS 0x0C -#define UART_MUL 0x0D -#define UART_DIV 0x0E - -#define HSU_GBL_IEN 0x0 -#define HSU_GBL_IST 0x4 - -#define HSU_GBL_INT_BIT_PORT0 0x0 -#define HSU_GBL_INT_BIT_PORT1 0x1 -#define HSU_GBL_INT_BIT_PORT2 0x2 -#define HSU_GBL_INT_BIT_IRI 0x3 -#define HSU_GBL_INT_BIT_HDLC 0x4 -#define HSU_GBL_INT_BIT_DMA 0x5 - -#define HSU_GBL_ISR 0x8 -#define HSU_GBL_DMASR 0x400 -#define HSU_GBL_DMAISR 0x404 - -#define HSU_PORT_REG_OFFSET 0x80 -#define HSU_PORT0_REG_OFFSET 0x80 -#define HSU_PORT1_REG_OFFSET 0x100 -#define HSU_PORT2_REG_OFFSET 0x180 -#define HSU_PORT_REG_LENGTH 0x80 - -#define HSU_DMA_CHANS_REG_OFFSET 0x500 -#define HSU_DMA_CHANS_REG_LENGTH 0x40 - -#define HSU_CH_SR 0x0 /* channel status reg */ -#define HSU_CH_CR 0x4 /* control reg */ -#define HSU_CH_DCR 0x8 /* descriptor control reg */ -#define HSU_CH_BSR 0x10 /* max fifo buffer size reg */ -#define HSU_CH_MOTSR 0x14 /* minimum ocp transfer size */ -#define HSU_CH_D0SAR 0x20 /* desc 0 start addr */ -#define HSU_CH_D0TSR 0x24 /* desc 0 transfer size */ -#define HSU_CH_D1SAR 0x28 -#define HSU_CH_D1TSR 0x2C -#define HSU_CH_D2SAR 0x30 -#define HSU_CH_D2TSR 0x34 -#define HSU_CH_D3SAR 0x38 -#define HSU_CH_D3TSR 0x3C - -#endif diff --git a/include/uapi/linux/serial_reg.h b/include/uapi/linux/serial_reg.h index 00adb01fa5f3..e9b4cb0cd7ed 100644 --- a/include/uapi/linux/serial_reg.h +++ b/include/uapi/linux/serial_reg.h @@ -242,25 +242,6 @@ #define UART_FCR_PXAR32 0xc0 /* receive FIFO threshold = 32 */ /* - * Intel MID on-chip HSU (High Speed UART) defined bits - */ -#define UART_FCR_HSU_64_1B 0x00 /* receive FIFO treshold = 1 */ -#define UART_FCR_HSU_64_16B 0x40 /* receive FIFO treshold = 16 */ -#define UART_FCR_HSU_64_32B 0x80 /* receive FIFO treshold = 32 */ -#define UART_FCR_HSU_64_56B 0xc0 /* receive FIFO treshold = 56 */ - -#define UART_FCR_HSU_16_1B 0x00 /* receive FIFO treshold = 1 */ -#define UART_FCR_HSU_16_4B 0x40 /* receive FIFO treshold = 4 */ -#define UART_FCR_HSU_16_8B 0x80 /* receive FIFO treshold = 8 */ -#define UART_FCR_HSU_16_14B 0xc0 /* receive FIFO treshold = 14 */ - -#define UART_FCR_HSU_64B_FIFO 0x20 /* chose 64 bytes FIFO */ -#define UART_FCR_HSU_16B_FIFO 0x00 /* chose 16 bytes FIFO */ - -#define UART_FCR_HALF_EMPT_TXI 0x00 /* trigger TX_EMPT IRQ for half empty */ -#define UART_FCR_FULL_EMPT_TXI 0x08 /* trigger TX_EMPT IRQ for full empty */ - -/* * These register definitions are for the 16C950 */ #define UART_ASR 0x01 /* Additional Status Register */ |