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From: Antony Pavlov <antonynpavlov@gmail.com>
To: barebox@lists.infradead.org
Subject: [PATCH 4/7] serial: ns16550: add compatible entry for "ingenic, jz4740-uart"
Date: Sat, 22 Mar 2014 15:29:54 +0400	[thread overview]
Message-ID: <1395487797-16599-5-git-send-email-antonynpavlov@gmail.com> (raw)
In-Reply-To: <1395487797-16599-1-git-send-email-antonynpavlov@gmail.com>

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
---
 drivers/serial/serial_ns16550.c | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/drivers/serial/serial_ns16550.c b/drivers/serial/serial_ns16550.c
index aa0992f..7130871 100644
--- a/drivers/serial/serial_ns16550.c
+++ b/drivers/serial/serial_ns16550.c
@@ -257,6 +257,30 @@ static __maybe_unused struct ns16550_drvdata omap_drvdata = {
 	.linux_console_name = "ttyO",
 };
 
+#define JZ_UART_SHIFT	2
+
+static void jz_serial_reg_write(unsigned int val, unsigned long base,
+	unsigned char reg_offset)
+{
+	switch (reg_offset) {
+	case (fcr << JZ_UART_SHIFT):
+		val |= 0x10; /* Enable uart module */
+		break;
+	case (ier << JZ_UART_SHIFT):
+		val |= (val & 0x4) << 2;
+		break;
+	default:
+		break;
+	}
+
+	writeb(val & 0xff, (void *)(base + reg_offset));
+}
+
+static __maybe_unused struct ns16550_drvdata jz_drvdata = {
+	.init_port = ns16550_serial_init_port,
+	.reg_write = jz_serial_reg_write,
+};
+
 /**
  * @brief Probe entry point -called on the first match for device
  *
@@ -351,6 +375,12 @@ static struct of_device_id ns16550_serial_dt_ids[] = {
 		.data = (unsigned long)&omap_drvdata,
 	},
 #endif
+#if IS_ENABLED(CONFIG_MACH_MIPS_XBURST)
+	{
+		.compatible = "ingenic,jz4740-uart",
+		.data = (unsigned long)&jz_drvdata,
+	},
+#endif
 	{
 		/* sentinel */
 	},
-- 
1.9.0


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  parent reply	other threads:[~2014-03-22 11:30 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-03-22 11:29 [PATCH 0/7] MIPS: improve Ingenic JZ4755 device tree support Antony Pavlov
2014-03-22 11:29 ` [PATCH 1/7] MIPS: mach-xburst: fix DEBUG_LL=n build error Antony Pavlov
2014-03-22 11:29 ` [PATCH 2/7] MIPS: dts: rzx50: move jz4755 description to the separate file Antony Pavlov
2014-03-22 11:29 ` [PATCH 3/7] serial: ns16550: make it possible to get reg_write() from devtype Antony Pavlov
2014-03-22 11:29 ` Antony Pavlov [this message]
2014-03-24  6:45   ` [PATCH 4/7] serial: ns16550: add compatible entry for "ingenic, jz4740-uart" Sascha Hauer
2014-03-24 20:23     ` Antony Pavlov
2014-03-22 11:29 ` [PATCH 5/7] MIPS: rzx50: drop console initialization in board code Antony Pavlov
2014-03-22 11:29 ` [PATCH 6/7] MIPS: mach-xburst: drop serial.c Antony Pavlov
2014-03-22 11:29 ` [PATCH 7/7] MIPS: boards: rename rzx50 -> ritmix-rzx50 Antony Pavlov

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