arm: mvebu: helios4: Enable SPI flash support

Enable SPI flash support under U-Boot and SPL. The ENV size and offset,
ported from U-Boot 2013.01 Marvell version: 2015_T1.0p16

To create U-Boot image for SPI flash, user would need to replace
* CONFIG_MVEBU_SPL_BOOT_DEVICE_MMC with CONFIG_MVEBU_SPL_BOOT_DEVICE_SPI
* CONFIG_ENV_IS_IN_MMC with CONFIG_ENV_IS_IN_SPI_FLASH

Signed-off-by: Aditya Prayoga <aditya@kobol.io>
Reviewed-by: Stefan Roese <sr@denx.de>
Tested-By: Dennis Gilmore <dgilmore@redhat.com>
Reviewed-By: Dennis Gilmore <dgilmore@redhat.com>
Signed-off-by: Stefan Roese <sr@denx.de>

diff --git a/arch/arm/dts/armada-388-helios4-u-boot.dtsi b/arch/arm/dts/armada-388-helios4-u-boot.dtsi
index bd8c6ce5016d815f794a6b1386f398c9133d6bc1..4bc00aec10f901fb413a9cd08ebf737528e8e0c2 100644 (file)
--- a/arch/arm/dts/armada-388-helios4-u-boot.dtsi
+++ b/arch/arm/dts/armada-388-helios4-u-boot.dtsi
@@ -4,5 +4,15 @@
        aliases {
                i2c0 = &i2c0;
                i2c1 = &i2c1;
+               spi1 = &spi1;
        };
 };
+
+&spi1 {
+       u-boot,dm-spl;
+};
+
+&w25q32 {
+       status = "okay";
+       u-boot,dm-spl;
+};

diff --git a/configs/helios4_defconfig b/configs/helios4_defconfig
index 53995fe157b18883b377cb306b2dda0c079db621..3bb4622fbee0893ec30bb5c3b0194e4b0c97e84f 100644 (file)
--- a/configs/helios4_defconfig
+++ b/configs/helios4_defconfig
@@ -6,7 +6,6 @@ CONFIG_SPL_LIBGENERIC_SUPPORT=y
 CONFIG_SYS_MALLOC_F_LEN=0x2000
 CONFIG_TARGET_HELIOS4=y
 CONFIG_MVEBU_SPL_BOOT_DEVICE_MMC=y
-CONFIG_SPL_MMC_SUPPORT=y
 CONFIG_SPL_SERIAL_SUPPORT=y
 CONFIG_SPL_SYS_MALLOC_SIMPLE=y
 CONFIG_SPL=y

diff --git a/include/configs/helios4.h b/include/configs/helios4.h
index e665340f1e09770552e8e1f6b8c2ba2c07ae6e0f..3157225f06776240a439ba9a818ca7341a07c5b8 100644 (file)
--- a/include/configs/helios4.h
+++ b/include/configs/helios4.h
@@ -6,6 +6,8 @@
 #ifndef _CONFIG_HELIOS4_H
 #define _CONFIG_HELIOS4_H
 
+#include <linux/sizes.h>
+
 /*
  * High Level Configuration Options (easy to change)
  */
@@ -23,6 +25,9 @@
 
 /* SPI NOR flash default params, used by sf commands */
 #define CONFIG_SF_DEFAULT_BUS          1
+#define CONFIG_SF_DEFAULT_CS           0
+#define CONFIG_SF_DEFAULT_SPEED                104000000
+#define CONFIG_SF_DEFAULT_MODE         SPI_MODE_3
 
 /*
  * SDIO/MMC Card Configuration
@@ -43,6 +48,21 @@
 #define CONFIG_SYS_SCSI_MAX_DEVICE      (CONFIG_SYS_SCSI_MAX_SCSI_ID * \
                                        CONFIG_SYS_SCSI_MAX_LUN)
 
+#ifdef CONFIG_MVEBU_SPL_BOOT_DEVICE_SPI
+/*
+ * SPI Flash configuration for the environment access
+ */
+#define CONFIG_ENV_SPI_BUS             CONFIG_SF_DEFAULT_BUS
+#define CONFIG_ENV_SPI_CS              CONFIG_SF_DEFAULT_CS
+#define CONFIG_ENV_SPI_MAX_HZ          CONFIG_SF_DEFAULT_SPEED
+
+/* Environment in SPI NOR flash */
+#define CONFIG_ENV_SECT_SIZE           SZ_64K
+#define CONFIG_ENV_SIZE                        CONFIG_ENV_SECT_SIZE
+#define CONFIG_ENV_OFFSET              SZ_1M
+#endif
+
+#ifdef CONFIG_MVEBU_SPL_BOOT_DEVICE_MMC
 /* Environment in MMC */
 #define CONFIG_SYS_MMC_ENV_DEV         0
 #define CONFIG_ENV_SECT_SIZE           0x200
@@ -50,6 +70,7 @@
 /* stay within first 1M */
 #define CONFIG_ENV_OFFSET              (SZ_1M - CONFIG_ENV_SIZE)
 #define CONFIG_ENV_ADDR                        CONFIG_ENV_OFFSET
+#endif
 
 #define CONFIG_PHY_MARVELL             /* there is a marvell phy */
 #define PHY_ANEG_TIMEOUT       8000    /* PHY needs a longer aneg time */
@@ -69,7 +90,13 @@
  */
 #define SPL_BOOT_SPI_NOR_FLASH         1
 #define SPL_BOOT_SDIO_MMC_CARD         2
+
+#ifdef CONFIG_MVEBU_SPL_BOOT_DEVICE_SPI
+#define CONFIG_SPL_BOOT_DEVICE         SPL_BOOT_SPI_NOR_FLASH
+#endif
+#ifdef CONFIG_MVEBU_SPL_BOOT_DEVICE_MMC
 #define CONFIG_SPL_BOOT_DEVICE         SPL_BOOT_SDIO_MMC_CARD
+#endif
 
 /* Defines for SPL */
 #define CONFIG_SPL_SIZE                        (140 << 10)
@@ -88,12 +115,16 @@
 
 #if CONFIG_SPL_BOOT_DEVICE == SPL_BOOT_SPI_NOR_FLASH
 /* SPL related SPI defines */
+#define CONFIG_SPL_SPI_FLASH_SUPPORT
+#define CONFIG_SPL_SPI_LOAD
+#define CONFIG_SPL_SPI_SUPPORT
 #define CONFIG_SYS_SPI_U_BOOT_OFFS     0x20000
 #define CONFIG_SYS_U_BOOT_OFFS         CONFIG_SYS_SPI_U_BOOT_OFFS
 #endif
 
 #if CONFIG_SPL_BOOT_DEVICE == SPL_BOOT_SDIO_MMC_CARD
 /* SPL related MMC defines */
+#define CONFIG_SPL_MMC_SUPPORT
 #define CONFIG_SYS_MMC_U_BOOT_OFFS             (160 << 10)
 #define CONFIG_SYS_U_BOOT_OFFS                 CONFIG_SYS_MMC_U_BOOT_OFFS
 #ifdef CONFIG_SPL_BUILD