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authorTom Rini <trini@konsulko.com>2016-07-15 08:06:22 -0400
committerTom Rini <trini@konsulko.com>2016-07-15 08:06:22 -0400
commitebe621d5fb2f5c15aff50e0610372f2751fd152f (patch)
tree12985b43f1a8500332de8e20274cc2dd26f5a040 /drivers/serial
parent36b898b6bea839de7141b65df6ec02a97615c467 (diff)
parent1269625177f120d659f66b18de4b532b16c44561 (diff)
downloadu-boot-ebe621d5fb2f5c15aff50e0610372f2751fd152f.zip
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Merge git://git.denx.de/u-boot-dm
Diffstat (limited to 'drivers/serial')
-rw-r--r--drivers/serial/Kconfig9
-rw-r--r--drivers/serial/Makefile3
-rw-r--r--drivers/serial/ns16550.c4
-rw-r--r--drivers/serial/sandbox.c2
-rw-r--r--drivers/serial/serial-uclass.c8
-rw-r--r--drivers/serial/serial_rockchip.c43
6 files changed, 67 insertions, 2 deletions
diff --git a/drivers/serial/Kconfig b/drivers/serial/Kconfig
index 0e38903..9ff7234 100644
--- a/drivers/serial/Kconfig
+++ b/drivers/serial/Kconfig
@@ -312,6 +312,15 @@ config SYS_NS16550
be used. It can be a constant or a function to get clock, eg,
get_serial_clock().
+config ROCKCHIP_SERIAL
+ bool "Rockchip on-chip UART support"
+ depends on DM_SERIAL && SPL_OF_PLATDATA
+ help
+ Select this to enable a debug UART for Rockchip devices when using
+ CONFIG_OF_PLATDATA (i.e. a compiled-in device tree replacemenmt).
+ This uses the ns16550 driver, converting the platdata from of-platdata
+ to the ns16550 format.
+
config SANDBOX_SERIAL
bool "Sandbox UART support"
depends on SANDBOX
diff --git a/drivers/serial/Makefile b/drivers/serial/Makefile
index 92cbea5..6986d65 100644
--- a/drivers/serial/Makefile
+++ b/drivers/serial/Makefile
@@ -28,6 +28,9 @@ obj-$(CONFIG_S5P) += serial_s5p.o
obj-$(CONFIG_MXC_UART) += serial_mxc.o
obj-$(CONFIG_PXA_SERIAL) += serial_pxa.o
obj-$(CONFIG_MESON_SERIAL) += serial_meson.o
+ifdef CONFIG_SPL_BUILD
+obj-$(CONFIG_ROCKCHIP_SERIAL) += serial_rockchip.o
+endif
obj-$(CONFIG_S3C24X0_SERIAL) += serial_s3c24x0.o
obj-$(CONFIG_XILINX_UARTLITE) += serial_xuartlite.o
obj-$(CONFIG_SANDBOX_SERIAL) += sandbox.o
diff --git a/drivers/serial/ns16550.c b/drivers/serial/ns16550.c
index c6cb3eb..88fca15 100644
--- a/drivers/serial/ns16550.c
+++ b/drivers/serial/ns16550.c
@@ -347,7 +347,7 @@ int ns16550_serial_probe(struct udevice *dev)
return 0;
}
-#if CONFIG_IS_ENABLED(OF_CONTROL)
+#if CONFIG_IS_ENABLED(OF_CONTROL) && !CONFIG_IS_ENABLED(OF_PLATDATA)
int ns16550_serial_ofdata_to_platdata(struct udevice *dev)
{
struct ns16550_platdata *plat = dev->platdata;
@@ -416,6 +416,7 @@ const struct dm_serial_ops ns16550_serial_ops = {
.setbrg = ns16550_serial_setbrg,
};
+#if !CONFIG_IS_ENABLED(OF_PLATDATA)
#if CONFIG_IS_ENABLED(OF_CONTROL)
/*
* Please consider existing compatible strings before adding a new
@@ -452,4 +453,5 @@ U_BOOT_DRIVER(ns16550_serial) = {
.flags = DM_FLAG_PRE_RELOC,
};
#endif
+#endif /* !OF_PLATDATA */
#endif /* CONFIG_DM_SERIAL */
diff --git a/drivers/serial/sandbox.c b/drivers/serial/sandbox.c
index 58f882b..bcc3465 100644
--- a/drivers/serial/sandbox.c
+++ b/drivers/serial/sandbox.c
@@ -115,7 +115,9 @@ static int sandbox_serial_pending(struct udevice *dev, bool input)
return 0;
os_usleep(100);
+#ifndef CONFIG_SPL_BUILD
video_sync_all();
+#endif
if (next_index == serial_buf_read)
return 1; /* buffer full */
diff --git a/drivers/serial/serial-uclass.c b/drivers/serial/serial-uclass.c
index 0ce5c44..19f38e1 100644
--- a/drivers/serial/serial-uclass.c
+++ b/drivers/serial/serial-uclass.c
@@ -33,7 +33,13 @@ static void serial_find_console_or_panic(void)
struct udevice *dev;
int node;
- if (CONFIG_IS_ENABLED(OF_CONTROL) && blob) {
+ if (CONFIG_IS_ENABLED(OF_PLATDATA)) {
+ uclass_first_device(UCLASS_SERIAL, &dev);
+ if (dev) {
+ gd->cur_serial_dev = dev;
+ return;
+ }
+ } else if (CONFIG_IS_ENABLED(OF_CONTROL) && blob) {
/* Check for a chosen console */
node = fdtdec_get_chosen_node(blob, "stdout-path");
if (node < 0) {
diff --git a/drivers/serial/serial_rockchip.c b/drivers/serial/serial_rockchip.c
new file mode 100644
index 0000000..6bac95a
--- /dev/null
+++ b/drivers/serial/serial_rockchip.c
@@ -0,0 +1,43 @@
+/*
+ * Copyright (c) 2015 Google, Inc
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <debug_uart.h>
+#include <dm.h>
+#include <dt-structs.h>
+#include <ns16550.h>
+#include <serial.h>
+#include <asm/arch/clock.h>
+
+struct rockchip_uart_platdata {
+ struct dtd_rockchip_rk3288_uart dtplat;
+ struct ns16550_platdata plat;
+};
+
+struct dtd_rockchip_rk3288_uart *dtplat, s_dtplat;
+
+static int rockchip_serial_probe(struct udevice *dev)
+{
+ struct rockchip_uart_platdata *plat = dev_get_platdata(dev);
+
+ /* Create some new platform data for the standard driver */
+ plat->plat.base = plat->dtplat.reg[0];
+ plat->plat.reg_shift = plat->dtplat.reg_shift;
+ plat->plat.clock = plat->dtplat.clock_frequency;
+ dev->platdata = &plat->plat;
+
+ return ns16550_serial_probe(dev);
+}
+
+U_BOOT_DRIVER(rockchip_rk3288_uart) = {
+ .name = "rockchip_rk3288_uart",
+ .id = UCLASS_SERIAL,
+ .priv_auto_alloc_size = sizeof(struct NS16550),
+ .platdata_auto_alloc_size = sizeof(struct rockchip_uart_platdata),
+ .probe = rockchip_serial_probe,
+ .ops = &ns16550_serial_ops,
+ .flags = DM_FLAG_PRE_RELOC,
+};