[PATCH v2 0/3] powerpc: mpc5121: PSC UART support
Anatolij Gustschin
serial console. This patch series re-enable PSC UART support for
all 12 PSCs and document added DTS bingings.
Anatolij Gustschin (3):
serial: mpc52xx_uart: re-enable mpc5121 PSC UART support
powerpc: doc/dts-bindings: document mpc5121 psc uart dts-bindings
powerpc: mpc5121: enable support for more PSC UARTs
.../powerpc/dts-bindings/fsl/mpc5121-psc.txt | 70 ++++++
arch/powerpc/include/asm/mpc52xx_psc.h | 4 +
drivers/serial/mpc52xx_uart.c | 251 ++++++++++++++++++--
3 files changed, 310 insertions(+), 15 deletions(-)
create mode 100644 Documentation/powerpc/dts-bindings/fsl/mpc5121-psc.txt
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Anatolij Gustschin
them by defining the number of max. PSCs depending on
selection of PPC_MPC512x platform support.
Signed-off-by: Anatolij Gustschin <ag...@denx.de>
Acked-by: Grant Likely <grant....@secretlab.ca>
---
No changes since v1.
arch/powerpc/include/asm/mpc52xx_psc.h | 4 ++++
1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/arch/powerpc/include/asm/mpc52xx_psc.h b/arch/powerpc/include/asm/mpc52xx_psc.h
index fb84120..42561f4 100644
--- a/arch/powerpc/include/asm/mpc52xx_psc.h
+++ b/arch/powerpc/include/asm/mpc52xx_psc.h
@@ -25,7 +25,11 @@
#include <asm/types.h>
/* Max number of PSCs */
+#ifdef CONFIG_PPC_MPC512x
+#define MPC52xx_PSC_MAXNUM 12
+#else
#define MPC52xx_PSC_MAXNUM 6
+#endif
/* Programmable Serial Controller (PSC) status register bits */
#define MPC52xx_PSC_SR_UNEX_RX 0x0001
--
1.6.3.3
Anatolij Gustschin
added new DTS properties for FSL MPC5121 PSC FIFO Controller.
Provide documentation of the new properties and some examples.
Signed-off-by: Anatolij Gustschin <ag...@denx.de>
Acked-by: Grant Likely <grant....@secretlab.ca>
---
No changes since v1.
.../powerpc/dts-bindings/fsl/mpc5121-psc.txt | 70 ++++++++++++++++++++
1 files changed, 70 insertions(+), 0 deletions(-)
create mode 100644 Documentation/powerpc/dts-bindings/fsl/mpc5121-psc.txt
diff --git a/Documentation/powerpc/dts-bindings/fsl/mpc5121-psc.txt b/Documentation/powerpc/dts-bindings/fsl/mpc5121-psc.txt
new file mode 100644
index 0000000..8832e87
--- /dev/null
+++ b/Documentation/powerpc/dts-bindings/fsl/mpc5121-psc.txt
@@ -0,0 +1,70 @@
+MPC5121 PSC Device Tree Bindings
+
+PSC in UART mode
+----------------
+
+For PSC in UART mode the needed PSC serial devices
+are specified by fsl,mpc5121-psc-uart nodes in the
+fsl,mpc5121-immr SoC node. Additionally the PSC FIFO
+Controller node fsl,mpc5121-psc-fifo is requered there:
+
+fsl,mpc5121-psc-uart nodes
+--------------------------
+
+Required properties :
+ - compatible : Should contain "fsl,mpc5121-psc-uart" and "fsl,mpc5121-psc"
+ - cell-index : Index of the PSC in hardware
+ - reg : Offset and length of the register set for the PSC device
+ - interrupts : <a b> where a is the interrupt number of the
+ PSC FIFO Controller and b is a field that represents an
+ encoding of the sense and level information for the interrupt.
+ - interrupt-parent : the phandle for the interrupt controller that
+ services interrupts for this device.
+
+Recommended properties :
+ - fsl,rx-fifo-size : the size of the RX fifo slice (a multiple of 4)
+ - fsl,tx-fifo-size : the size of the TX fifo slice (a multiple of 4)
+
+
+fsl,mpc5121-psc-fifo node
+-------------------------
+
+Required properties :
+ - compatible : Should be "fsl,mpc5121-psc-fifo"
+ - reg : Offset and length of the register set for the PSC
+ FIFO Controller
+ - interrupts : <a b> where a is the interrupt number of the
+ PSC FIFO Controller and b is a field that represents an
+ encoding of the sense and level information for the interrupt.
+ - interrupt-parent : the phandle for the interrupt controller that
+ services interrupts for this device.
+
+
+Example for a board using PSC0 and PSC1 devices in serial mode:
+
+serial@11000 {
+ compatible = "fsl,mpc5121-psc-uart", "fsl,mpc5121-psc";
+ cell-index = <0>;
+ reg = <0x11000 0x100>;
+ interrupts = <40 0x8>;
+ interrupt-parent = < &ipic >;
+ fsl,rx-fifo-size = <16>;
+ fsl,tx-fifo-size = <16>;
+};
+
+serial@11100 {
+ compatible = "fsl,mpc5121-psc-uart", "fsl,mpc5121-psc";
+ cell-index = <1>;
+ reg = <0x11100 0x100>;
+ interrupts = <40 0x8>;
+ interrupt-parent = < &ipic >;
+ fsl,rx-fifo-size = <16>;
+ fsl,tx-fifo-size = <16>;
+};
+
+pscfifo@11f00 {
+ compatible = "fsl,mpc5121-psc-fifo";
+ reg = <0x11f00 0x100>;
+ interrupts = <40 0x8>;
+ interrupt-parent = < &ipic >;
+};
--
1.6.3.3
Grant Likely
series into my tree?
Thanks,
g.
On Tue, Feb 9, 2010 at 2:13 PM, Anatolij Gustschin <ag...@denx.de> wrote:
> The support for mpc5121 PSC UART currently only works with
> serial console. This patch series re-enable PSC UART support for
> all 12 PSCs and document added DTS bingings.
>
> Anatolij Gustschin (3):
> �serial: mpc52xx_uart: re-enable mpc5121 PSC UART support
> �powerpc: doc/dts-bindings: document mpc5121 psc uart �dts-bindings
> �powerpc: mpc5121: enable support for more PSC UARTs
>
> �.../powerpc/dts-bindings/fsl/mpc5121-psc.txt � � � | � 70 ++++++
> �arch/powerpc/include/asm/mpc52xx_psc.h � � � � � � | � �4 +
> �drivers/serial/mpc52xx_uart.c � � � � � � � � � � �| �251 ++++++++++++++++++--
> �3 files changed, 310 insertions(+), 15 deletions(-)
> �create mode 100644 Documentation/powerpc/dts-bindings/fsl/mpc5121-psc.txt
>
>
--
Grant Likely, B.Sc., P.Eng.
Secret Lab Technologies Ltd.
Greg KH
> Greg, since this touches powerpc stuff, do you mind if I pick up the
> series into my tree?
No objection at all, feel free to add an:
Acked-by: Greg Kroah-Hartman <gre...@suse.de>
to the patches.
thanks,
greg k-h