sf: Add XMC xm25qh64a and xm25qh128a entries

This patch adds support for 2 new XMC (Wuhan Xinxin Semiconductor
Manufacturing Corp) SPI NOR chips.

This support can be enabled by selecting the SPI_FLASH_XMC Kconfig
option.

Signed-off-by: Stefan Roese <sr@denx.de>
Reviewed-by: Jagan Teki <jagan@openedev.com>

drivers/mtd/spi/Kconfig

@@ -96,6 +96,12 @@ config SPI_FLASH_WINBOND
 	help
 	  Add support for various Winbond SPI flash chips (W25xxx)
 
+config SPI_FLASH_XMC
+	bool "XMC SPI flash support"
+	help
+	  Add support for various XMC (Wuhan Xinxin Semiconductor
+	  Manufacturing Corp.) SPI flash chips (XM25xxx)
+
 endif
 
 config SPI_FLASH_USE_4K_SECTORS

drivers/mtd/spi/spi_flash_ids.c

@@ -189,6 +189,10 @@ const struct spi_flash_info spi_flash_ids[] = {
 	{"w25q256fw",	   INFO(0xef6019, 0x0,	64 * 1024,   512, RD_FULL | WR_QPP | SECT_4K) },
 	{"w25q256jw",	   INFO(0xef7019, 0x0,	64 * 1024,   512, RD_FULL | WR_QPP | SECT_4K) },
 #endif
+#ifdef CONFIG_SPI_FLASH_XMC /* Wuhan Xinxin Semiconductor Manufacturing Corp */
+	{ "xm25qh64a",	   INFO(0x207017, 0x0, 64 * 1024,    128, SECT_4K | RD_DUAL | RD_QUAD) },
+	{ "xm25qh128a",	   INFO(0x207018, 0x0, 64 * 1024,    256, SECT_4K | RD_DUAL | RD_QUAD) },
+#endif
 	{},	/* Empty entry to terminate the list */
 	/*
 	 * Note: