[PATCH] arm: mvebu: Define env_sf_get_env_addr() for all Armada boards in SPL

["Pali Rohár" <pali@kernel.org>]

SPI0 CS0 Flash is mapped to address range 0xD4000000 - 0xD7FFFFFF by BootROM.
Proper U-Boot removes this direct mapping. So it is available only in SPL.
This applies for all 32-bit Armada BootROMs. SPL mvebu code is used only on
32-bit Armada SoCs. So move env_sf_get_env_addr() function from Turris
Omnia board to common SPL mvebu code and add proper checks for SPI0 CS0.

Signed-off-by: Pali Rohár <pali@kernel.org>
---
 arch/arm/mach-mvebu/spl.c                | 13 +++++++++++++
 board/CZ.NIC/turris_omnia/turris_omnia.c | 10 ----------
 2 files changed, 13 insertions(+), 10 deletions(-)

diff --git a/arch/arm/mach-mvebu/spl.c b/arch/arm/mach-mvebu/spl.c
index 13c99913c380..866e0ac62345 100644
--- a/arch/arm/mach-mvebu/spl.c
+++ b/arch/arm/mach-mvebu/spl.c
@@ -292,6 +292,19 @@ int board_return_to_bootrom(struct spl_image_info *spl_image,
 	hang();
 }
 
+/*
+ * SPI0 CS0 Flash is mapped to address range 0xD4000000 - 0xD7FFFFFF by BootROM.
+ * Proper U-Boot removes this direct mapping. So it is available only in SPL.
+ */
+#if defined(CONFIG_SPL_ENV_IS_IN_SPI_FLASH) && \
+    CONFIG_ENV_SPI_BUS == 0 && CONFIG_ENV_SPI_CS == 0 && \
+    CONFIG_ENV_OFFSET + CONFIG_ENV_SIZE <= 64*1024*1024
+void *env_sf_get_env_addr(void)
+{
+	return (void *)0xD4000000 + CONFIG_ENV_OFFSET;
+}
+#endif
+
 void board_init_f(ulong dummy)
 {
 	int ret;
diff --git a/board/CZ.NIC/turris_omnia/turris_omnia.c b/board/CZ.NIC/turris_omnia/turris_omnia.c
index 5921769f1e1d..3180305f8031 100644
--- a/board/CZ.NIC/turris_omnia/turris_omnia.c
+++ b/board/CZ.NIC/turris_omnia/turris_omnia.c
@@ -255,16 +255,6 @@ static bool omnia_detect_wwan_usb3(const char *wwan_slot)
 	return false;
 }
 
-void *env_sf_get_env_addr(void)
-{
-	/* SPI Flash is mapped to address 0xD4000000 only in SPL */
-#ifdef CONFIG_SPL_BUILD
-	return (void *)0xD4000000 + CONFIG_ENV_OFFSET;
-#else
-	return NULL;
-#endif
-}
-
 int hws_board_topology_load(struct serdes_map **serdes_map_array, u8 *count)
 {
 #ifdef CONFIG_SPL_ENV_SUPPORT
-- 
2.20.1