commit f3e2c9df23c492cee262d79efe667d71db2f99c4
author Michal Simek <michal.simek@xilinx.com> Wed Nov 04 16:14:06 2020 +0100
committer Michal Simek <michal.simek@xilinx.com> Fri Nov 20 10:42:54 2020 +0100
tree 179c9a8cd199d63407effb6d90832262edafb6e7
parent 736c1e64b5fbc1b55fab9f99fd321f0b2b8a19ae

microblaze: Detect NOR flash based on DT

Remove fixed configuration and detect flash based on DT.

Also increase amount of flash sectors to 2048 because on kc705 flash has
1027 sectors.

Bank # 1: CFI conformant flash (16 x 16)  Size: 128 MB in 1027 Sectors
  Intel Extended command set, Manufacturer ID: 0x89, Device ID: 0x8962
  Erase timeout: 4096 ms, write timeout: 2 ms
  Buffer write timeout: 5 ms, buffer size: 1024 bytes

Signed-off-by: Michal Simek <michal.simek@xilinx.com>

configs/microblaze-generic_defconfig

diff --git a/configs/microblaze-generic_defconfig b/configs/microblaze-generic_defconfig
index 08c8885..761cc65 100644
--- a/configs/microblaze-generic_defconfig
+++ b/configs/microblaze-generic_defconfig
@@ -48,8 +48,10 @@
 CONFIG_LED=y
 CONFIG_LED_GPIO=y
 CONFIG_MTD=y
+CONFIG_DM_MTD=y
 CONFIG_MTD_NOR_FLASH=y
 CONFIG_FLASH_CFI_DRIVER=y
+CONFIG_CFI_FLASH=y
 CONFIG_SYS_FLASH_USE_BUFFER_WRITE=y
 CONFIG_FLASH_CFI_MTD=y
 CONFIG_SYS_FLASH_PROTECTION=y

include/configs/microblaze-generic.h

diff --git a/include/configs/microblaze-generic.h b/include/configs/microblaze-generic.h
index c31a7880..bc0bf04 100644
--- a/include/configs/microblaze-generic.h
+++ b/include/configs/microblaze-generic.h
@@ -11,26 +11,11 @@
 /* Microblaze is microblaze_0 */
 #define XILINX_FSL_NUMBER	3
 
-/* Flash Memory is FLASH_2Mx32 */
-#define XILINX_FLASH_START	0x2c000000
-#define XILINX_FLASH_SIZE	0x00800000
-
 /* MicroBlaze CPU */
 #define	MICROBLAZE_V5		1
 
 #define CONFIG_SYS_BOOTM_LEN	(64 * 1024 * 1024)
 
-/* linear and spi flash memory */
-#ifdef XILINX_FLASH_START
-#define	FLASH
-#undef	SPIFLASH
-#undef	RAMENV	/* hold environment in flash */
-#else
-#undef	FLASH
-#undef	SPIFLASH
-#define	RAMENV	/* hold environment in RAM */
-#endif
-
 /* uart */
 /* The following table includes the supported baudrates */
 # define CONFIG_SYS_BAUDRATE_TABLE \
@@ -45,34 +30,14 @@
 #define CONFIG_SYS_INIT_SP_OFFSET	(CONFIG_SYS_TEXT_BASE - \
 					 CONFIG_SYS_MALLOC_F_LEN)
 
-/*
- * CFI flash memory layout - Example
- * CONFIG_SYS_FLASH_BASE = 0x2200_0000;
- * CONFIG_SYS_FLASH_SIZE = 0x0080_0000;	  8MB
- *
- * SECT_SIZE = 0x20000;			128kB is one sector
- * CONFIG_ENV_SIZE = SECT_SIZE;		128kB environment store
- *
- * 0x2200_0000	CONFIG_SYS_FLASH_BASE
- *					FREE		256kB
- * 0x2204_0000	CONFIG_ENV_ADDR
- *					ENV_AREA	128kB
- * 0x2206_0000
- *					FREE
- * 0x2280_0000	CONFIG_SYS_FLASH_BASE + CONFIG_SYS_FLASH_SIZE
- *
- */
-
-#ifdef FLASH
-# define CONFIG_SYS_FLASH_BASE		XILINX_FLASH_START
-# define CONFIG_SYS_FLASH_SIZE		XILINX_FLASH_SIZE
+#ifdef CONFIG_CFI_FLASH
 /* ?empty sector */
 # define CONFIG_SYS_FLASH_EMPTY_INFO	1
 /* max number of memory banks */
 # define CONFIG_SYS_MAX_FLASH_BANKS	1
 /* max number of sectors on one chip */
-# define CONFIG_SYS_MAX_FLASH_SECT	512
-#endif /* !FLASH */
+# define CONFIG_SYS_MAX_FLASH_SECT	2048
+#endif
 
 #define CONFIG_ICACHE
 #define CONFIG_DCACHE