diff options
Diffstat (limited to 'include/dm/platform_data/serial_pxa.h')
| -rw-r--r-- | include/dm/platform_data/serial_pxa.h | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/include/dm/platform_data/serial_pxa.h b/include/dm/platform_data/serial_pxa.h new file mode 100644 index 0000000..408c008 --- /dev/null +++ b/include/dm/platform_data/serial_pxa.h @@ -0,0 +1,55 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Copyright (c) 2016 Marcel Ziswiler <marcel.ziswiler@toradex.com> + */ + +#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 */ |