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serial: pxa: integrate optional driver model handling

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Optional driver model handling integration.

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Reviewed-by: Marek Vasut <marex@denx.de>
This commit is contained in:
Marcel Ziswiler
2016-11-14 21:40:26 +01:00
committed by Marek Vasut
parent d804a5e1c3
commit cbfa67a16b
2 changed files with 169 additions and 70 deletions
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56
include/dm/platform_data/serial_pxa.h Normal file
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/*
* Copyright (c) 2016 Marcel Ziswiler <marcel.ziswiler@toradex.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef __SERIAL_PXA_H
#define __SERIAL_PXA_H
/*
* The numbering scheme differs here for PXA25x, PXA27x and PXA3xx so we can
* easily handle enabling of clock.
*/
#ifdef CONFIG_CPU_MONAHANS
#define UART_CLK_BASE CKENA_21_BTUART
#define UART_CLK_REG CKENA
#define BTUART_INDEX 0
#define FFUART_INDEX 1
#define STUART_INDEX 2
#elif CONFIG_CPU_PXA25X
#define UART_CLK_BASE (1 << 4) /* HWUART */
#define UART_CLK_REG CKEN
#define HWUART_INDEX 0
#define STUART_INDEX 1
#define FFUART_INDEX 2
#define BTUART_INDEX 3
#else /* PXA27x */
#define UART_CLK_BASE CKEN5_STUART
#define UART_CLK_REG CKEN
#define STUART_INDEX 0
#define FFUART_INDEX 1
#define BTUART_INDEX 2
#endif
/*
* Only PXA250 has HWUART, to avoid poluting the code with more macros,
* artificially introduce this.
*/
#ifndef CONFIG_CPU_PXA25X
#define HWUART_INDEX 0xff
#endif
/*
* struct pxa_serial_platdata - information about a PXA port
*
* @base: Uart port base register address
* @port: Uart port index, for cpu with pinmux for uart / gpio
* baudrtatre: Uart port baudrate
*/
struct pxa_serial_platdata {
struct pxa_uart_regs *base;
int port;
int baudrate;
};
#endif /* __SERIAL_PXA_H */