zynq: Add zynq_zc770 xm012 board support

ZC770 is a complete development board based on the Xilinx Zynq-7000
All Programmable SoC, similar to ZC70x board but which has four
different daughter cards, like XM010, XM011, XM012 and XM013

ZC770 XM012:
- 1GB DDR3
- 64MiB Numonyx NOR flash
- USB-UART

Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
Cc: Stefan Roese <sr@denx.de>

boards.cfg

@@ -361,6 +361,7 @@ Active  arm	    armv7	   zynq	       xilinx	       zynq	   	   zynq_zc70x				-
 Active  arm	    armv7	   zynq	       xilinx	       zynq	   	   zynq_zed				-                                                                                                                                 Michal Simek <monstr@monstr.eu>:Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
 Active  arm	    armv7	   zynq	       xilinx	       zynq	   	   zynq_microzed			-                                                                                                                                 Michal Simek <monstr@monstr.eu>:Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
 Active  arm	    armv7	   zynq	       xilinx	       zynq	   	   zynq_zc770_xm010			zynq_zc770:ZC770_XM010                                                                                                            Michal Simek <monstr@monstr.eu>:Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
+Active  arm	    armv7	   zynq	       xilinx	       zynq	   	   zynq_zc770_xm012			zynq_zc770:ZC770_XM012                                                                                                            Michal Simek <monstr@monstr.eu>:Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
 Active  arm	    armv7	   zynq	       xilinx	       zynq	   	   zynq_zc770_xm013			zynq_zc770:ZC770_XM013                                                                                                            Michal Simek <monstr@monstr.eu>:Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
 Active  arm         armv7:arm720t  tegra114    nvidia          dalmore             dalmore                              -                                                                                                                                 Tom Warren <twarren@nvidia.com>
 Active  arm         armv7:arm720t  tegra20     avionic-design  medcom-wide         medcom-wide                          -                                                                                                                                 Alban Bedel <alban.bedel@avionic-design.de>

include/configs/zynq-common.h

@@ -75,6 +75,22 @@
 # define CONFIG_CMD_SF
 #endif
 
+/* NOR */
+#ifndef CONFIG_SYS_NO_FLASH
+# define CONFIG_SYS_FLASH_BASE		0xE2000000
+# define CONFIG_SYS_FLASH_SIZE		(16 * 1024 * 1024)
+# define CONFIG_SYS_MAX_FLASH_BANKS	1
+# define CONFIG_SYS_MAX_FLASH_SECT	512
+# define CONFIG_SYS_FLASH_ERASE_TOUT	1000
+# define CONFIG_SYS_FLASH_WRITE_TOUT	5000
+# define CONFIG_FLASH_SHOW_PROGRESS	10
+# define CONFIG_SYS_FLASH_CFI
+# undef CONFIG_SYS_FLASH_EMPTY_INFO
+# define CONFIG_FLASH_CFI_DRIVER
+# undef CONFIG_SYS_FLASH_PROTECTION
+# define CONFIG_SYS_FLASH_USE_BUFFER_WRITE
+#endif
+
 /* MMC */
 #if defined(CONFIG_ZYNQ_SDHCI0) || defined(CONFIG_ZYNQ_SDHCI1)
 # define CONFIG_MMC

include/configs/zynq_zc770.h

@@ -21,6 +21,10 @@
 # define CONFIG_ZYNQ_SDHCI0
 # define CONFIG_ZYNQ_SPI
 
+#elif defined(CONFIG_ZC770_XM012)
+# define CONFIG_ZYNQ_SERIAL_UART1
+# undef CONFIG_SYS_NO_FLASH
+
 #elif defined(CONFIG_ZC770_XM013)
 # define CONFIG_ZYNQ_SERIAL_UART0
 # define CONFIG_ZYNQ_GEM1