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[1/2] vexpress64: juno: add NOR flash detection

Message ID 1424362777-31691-1-git-send-email-linus.walleij@linaro.org
State New
Headers show

Commit Message

Linus Walleij Feb. 19, 2015, 4:19 p.m. UTC 
This enables the vexpress64 to detect its NOR flash so that we
can load kernel etc from it.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 include/configs/vexpress_aemv8a.h | 41 ++++++++++++++++++++++-----------------
 1 file changed, 23 insertions(+), 18 deletions(-)
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Patch

diff --git a/include/configs/vexpress_aemv8a.h b/include/configs/vexpress_aemv8a.h
index 5ffc84dc5ecd..bcfcb63d81d8 100644
--- a/include/configs/vexpress_aemv8a.h
+++ b/include/configs/vexpress_aemv8a.h
@@ -29,8 +29,6 @@ 
 
 /*#define CONFIG_ARMV8_SWITCH_TO_EL1*/
 
-#define CONFIG_SYS_NO_FLASH
-
 #define CONFIG_SUPPORT_RAW_INITRD
 
 /* Cache Definitions */
@@ -56,14 +54,6 @@ 
 /* Flat Device Tree Definitions */
 #define CONFIG_OF_LIBFDT
 
-/* CS register bases for the original memory map. */
-#define V2M_PA_CS0			0x00000000
-#define V2M_PA_CS1			0x14000000
-#define V2M_PA_CS2			0x18000000
-#define V2M_PA_CS3			0x1c000000
-#define V2M_PA_CS4			0x0c000000
-#define V2M_PA_CS5			0x10000000
-
 #define V2M_PERIPH_OFFSET(x)		(x << 16)
 #define V2M_SYSREGS			(V2M_PA_CS3 + V2M_PERIPH_OFFSET(1))
 #define V2M_SYSCTL			(V2M_PA_CS3 + V2M_PERIPH_OFFSET(2))
@@ -71,13 +61,6 @@ 
 
 #define V2M_BASE			0x80000000
 
-/*
- * Physical addresses, offset from V2M_PA_CS0-3
- */
-#define V2M_NOR0			(V2M_PA_CS0)
-#define V2M_NOR1			(V2M_PA_CS4)
-#define V2M_SRAM			(V2M_PA_CS1)
-
 /* Common peripherals relative to CS7. */
 #define V2M_AACI			(V2M_PA_CS3 + V2M_PERIPH_OFFSET(4))
 #define V2M_MMCI			(V2M_PA_CS3 + V2M_PERIPH_OFFSET(5))
@@ -175,7 +158,6 @@ 
 #define CONFIG_CMD_DHCP
 #define CONFIG_CMD_PXE
 #define CONFIG_CMD_ENV
-#define CONFIG_CMD_FLASH
 #define CONFIG_CMD_IMI
 #define CONFIG_CMD_LOADB
 #define CONFIG_CMD_MEMORY
@@ -258,4 +240,27 @@ 
 #define CONFIG_CMDLINE_EDITING
 #define CONFIG_SYS_MAXARGS		64	/* max command args */
 
+/* Flash memory is available on the Juno board only */
+#ifndef CONFIG_TARGET_VEXPRESS64_JUNO
+#define CONFIG_SYS_NO_FLASH
+#else
+#define CONFIG_CMD_FLASH
+#define CONFIG_SYS_FLASH_CFI		1
+#define CONFIG_FLASH_CFI_DRIVER		1
+#define CONFIG_SYS_FLASH_BASE		0x08000000
+#define CONFIG_SYS_FLASH_SIZE		0x04000000 /* 64 MiB */
+#define CONFIG_SYS_MAX_FLASH_BANKS	2
+
+/* Timeout values in ticks */
+#define CONFIG_SYS_FLASH_ERASE_TOUT	(2 * CONFIG_SYS_HZ) /* Erase Timeout */
+#define CONFIG_SYS_FLASH_WRITE_TOUT	(2 * CONFIG_SYS_HZ) /* Write Timeout */
+
+/* 255 0x40000 sectors + first or last sector may have 4 erase regions = 259 */
+#define CONFIG_SYS_MAX_FLASH_SECT	259		/* Max sectors */
+#define CONFIG_SYS_FLASH_USE_BUFFER_WRITE /* use buffered writes */
+#define CONFIG_SYS_FLASH_PROTECTION	/* The devices have real protection */
+#define CONFIG_SYS_FLASH_EMPTY_INFO	/* flinfo indicates empty blocks */
+
+#endif
+
 #endif /* __VEXPRESS_AEMV8A_H */