serial: pxa: integrate optional driver model handling

Optional driver model handling integration.

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Reviewed-by: Marek Vasut <marex@denx.de>

1 files changed, 56 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 0000000000..b19a4a6521
--- /dev/null
+++ b/include/dm/platform_data/serial_pxa.h
@@ -0,0 +1,56 @@
+/*
+ * 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 */