ppc: xilinx-ppc4xx: Port to DM serial

xilinx_uartlite has been ported to DM, this patch makes the
xilinx-ppc405-generic and the xilinx-ppc440-generic boards use the new
DM driver.

Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Acked-by: Stefan Roese <sr@denx.de>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Michal Simek <michal.simek@xilinx.com>

arch/powerpc/cpu/ppc4xx/Kconfig

@@ -111,9 +111,17 @@ config TARGET_XPEDITE1000
 
 config TARGET_XILINX_PPC405_GENERIC
 	bool "Support xilinx-ppc405-generic"
+	select SUPPORT_SPL
+	select OF_CONTROL
+	select DM
+	select DM_SERIAL
 
 config TARGET_XILINX_PPC440_GENERIC
 	bool "Support xilinx-ppc440-generic"
+	select SUPPORT_SPL
+	select OF_CONTROL
+	select DM
+	select DM_SERIAL
 
 endchoice
 

board/xilinx/ppc405-generic/xilinx_ppc405_generic.c

@@ -46,3 +46,7 @@ void __get_sys_info(sys_info_t *sysInfo)
 	return;
 }
 void get_sys_info(sys_info_t *) __attribute__((weak, alias("__get_sys_info")));
+
+int get_serial_clock(void){
+	return XPAR_UARTNS550_0_CLOCK_FREQ_HZ;
+}

board/xilinx/ppc405-generic/xparameters.h

@@ -19,7 +19,6 @@
 #define XPAR_CORE_CLOCK_FREQ_HZ		400000000
 #define XPAR_INTC_MAX_NUM_INTR_INPUTS	32
 #define XPAR_SPI_0_NUM_TRANSFER_BITS	8
-#define XPAR_UARTNS550_0_BASEADDR	0xdeadbeef
 #define XPAR_UARTNS550_0_CLOCK_FREQ_HZ	100000000
 
 #endif

board/xilinx/ppc440-generic/xilinx_ppc440_generic.c

@@ -39,3 +39,7 @@ void __get_sys_info(sys_info_t *sysInfo)
 	return;
 }
 void get_sys_info(sys_info_t *) __attribute__((weak, alias("__get_sys_info")));
+
+int get_serial_clock(void){
+	return XPAR_UARTNS550_0_CLOCK_FREQ_HZ;
+}

board/xilinx/ppc440-generic/xparameters.h

@@ -17,7 +17,6 @@
 #define XPAR_PLB_CLOCK_FREQ_HZ		100000000
 #define XPAR_CORE_CLOCK_FREQ_HZ		400000000
 #define XPAR_INTC_MAX_NUM_INTR_INPUTS	32
-#define XPAR_UARTNS550_0_BASEADDR	0xdeadbeef
 #define XPAR_UARTNS550_0_CLOCK_FREQ_HZ	100000000
 
 #endif

configs/xilinx-ppc405-generic_defconfig

@@ -7,3 +7,11 @@ CONFIG_SYS_PROMPT="xlx-ppc405:/# "
 # CONFIG_CMD_SETEXPR is not set
 # CONFIG_CMD_NET is not set
 # CONFIG_CMD_NFS is not set
+CONFIG_SYS_MALLOC_SIMPLE=y
+CONFIG_XILINX_UARTLITE=y
+CONFIG_SYS_NS16550=y
+CONFIG_OF_EMBED=y
+CONFIG_OF_CONTROL=y
+CONFIG_FIT=y
+CONFIG_FIT_VERBOSE=y
+CONFIG_DEFAULT_DEVICE_TREE="xilinx-ppc440-generic"

configs/xilinx-ppc440-generic_defconfig

@@ -3,7 +3,11 @@ CONFIG_4xx=y
 CONFIG_TARGET_XILINX_PPC440_GENERIC=y
 CONFIG_SYS_EXTRA_OPTIONS="SYS_TEXT_BASE=0x04000000,RESET_VECTOR_ADDRESS=0x04100000,BOOT_FROM_XMD=1"
 CONFIG_SYS_PROMPT="board:/# "
-# CONFIG_CMD_IMLS is not set
-# CONFIG_CMD_SETEXPR is not set
-# CONFIG_CMD_NET is not set
-# CONFIG_CMD_NFS is not set
+CONFIG_SYS_MALLOC_SIMPLE=y
+CONFIG_XILINX_UARTLITE=y
+CONFIG_SYS_NS16550=y
+CONFIG_OF_EMBED=y
+CONFIG_OF_CONTROL=y
+CONFIG_FIT=y
+CONFIG_FIT_VERBOSE=y
+CONFIG_DEFAULT_DEVICE_TREE="xilinx-ppc440-generic"

drivers/serial/Kconfig

@@ -280,7 +280,7 @@ config UNIPHIER_SERIAL
 
 config XILINX_UARTLITE
 	bool "Xilinx Uarlite support"
-	depends on DM_SERIAL && (MICROBLAZE || ARCH_ZYNQ || ARCH_ZYNQMP)
+	depends on DM_SERIAL && (MICROBLAZE || ARCH_ZYNQ || ARCH_ZYNQMP || 4xx)
 	help
 	  If you have a Xilinx based board and want to use the uartlite
 	  serial ports, say Y to this option. If unsure, say N.

include/configs/xilinx-ppc.h

@@ -101,23 +101,10 @@
 #define CONFIG_SYS_NO_FLASH
 #endif
 
-/* serial communication */
-#ifdef XPAR_UARTLITE_0_BASEADDR
-#define CONFIG_XILINX_UARTLITE
-#define XILINX_UARTLITE_BASEADDR	XPAR_UARTLITE_0_BASEADDR
-#define CONFIG_BAUDRATE			XPAR_UARTLITE_0_BAUDRATE
-#define CONFIG_SYS_BAUDRATE_TABLE	{ CONFIG_BAUDRATE }
-#else
-#ifdef XPAR_UARTNS550_0_BASEADDR
-#define CONFIG_SYS_NS16550
-#define CONFIG_SYS_NS16550_SERIAL
-#define CONFIG_SYS_NS16550_REG_SIZE	4
-#define CONFIG_CONS_INDEX		1
-#define CONFIG_SYS_NS16550_COM1		XPAR_UARTNS550_0_BASEADDR
-#define CONFIG_SYS_NS16550_CLK		XPAR_UARTNS550_0_CLOCK_FREQ_HZ
+#define CONFIG_OF_LIBFDT       1
 #define CONFIG_BAUDRATE			115200
-#define CONFIG_SYS_BAUDRATE_TABLE	{ 9600, 115200 }
-#endif
-#endif
+/* The following table includes the supported baudrates */
+# define CONFIG_SYS_BAUDRATE_TABLE \
+	{300, 600, 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200, 230400}
 
 #endif						/* __CONFIG_H */