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arm: socfpga: sr1500: Misc updates (SPI speed, env location) 

This patch makes the following changes to the SR1500 board port:

- Update defconfig to support SPI NOR (use make savedefconfig).
- Increase SPI speed to a maximum of 100MHz for faster system
  bootup.
- Change environment location, so that its not between SPL and
  main U-Boot. This way the combined SPL / U-Boot image can
  be used for updates.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Marek Vasut <marex@denx.de>
utp
Stefan Roese 2016-03-03 16:57:39 +01:00 committed by Marek Vasut
parent ead2fb29e8
commit 93d9fc26cb
3 changed files with 15 additions and 8 deletions
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2
arch/arm/dts/socfpga_cyclone5_sr1500.dts
View File

@ -88,7 +88,7 @@
#size-cells = <1>;
compatible = "n25q00", "spi-flash";
reg = <0>; /* chip select */
spi-max-frequency = <50000000>;
spi-max-frequency = <100000000>;
m25p,fast-read;
page-size = <256>;
block-size = <16>; /* 2^16, 64KB */

2
configs/socfpga_sr1500_defconfig
View File

@ -15,7 +15,9 @@ CONFIG_SPL_DM_SEQ_ALIAS=y
CONFIG_DWAPB_GPIO=y
CONFIG_DM_MMC=y
CONFIG_SPI_FLASH=y
CONFIG_SPI_FLASH_STMICRO=y
# CONFIG_SPI_FLASH_USE_4K_SECTORS is not set
CONFIG_DM_ETH=y
CONFIG_ETH_DESIGNWARE=y
CONFIG_SYS_NS16550=y
CONFIG_CADENCE_QSPI=y

19
include/configs/socfpga_sr1500.h
View File

@ -93,22 +93,27 @@
#define CONFIG_SYS_BOOTCOUNT_BE
/* Environment setting for SPI flash */
#undef CONFIG_ENV_SIZE
#define CONFIG_SYS_REDUNDAND_ENVIRONMENT
#define CONFIG_ENV_SECT_SIZE (64 * 1024)
#define CONFIG_ENV_SIZE (16 * 1024)
#define CONFIG_ENV_OFFSET 0x00040000
#define CONFIG_ENV_OFFSET 0x000e0000
#define CONFIG_ENV_OFFSET_REDUND (CONFIG_ENV_OFFSET + CONFIG_ENV_SECT_SIZE)
#define CONFIG_ENV_SPI_BUS 0
#define CONFIG_ENV_SPI_CS 0
#define CONFIG_ENV_SPI_MODE SPI_MODE_3
#define CONFIG_ENV_SPI_MAX_HZ CONFIG_SF_DEFAULT_SPEED
#define CONFIG_ENV_SPI_MAX_HZ 100000000 /* Use max of 100MHz */
#define CONFIG_SF_DEFAULT_SPEED 100000000
/*
* The QSPI NOR flash layout on SR1500:
*
* 0000.0000 - 0003.ffff: SPL (4 times)
* 0004.0000 - 000d.ffff: U-Boot
* 000e.0000 - 000e.ffff: env1
* 000f.0000 - 000f.ffff: env2
*/
/* The rest of the configuration is shared */
#include <configs/socfpga_common.h>
/* U-Boot payload is stored at offset 0x60000 */
#undef CONFIG_SYS_SPI_U_BOOT_OFFS
#define CONFIG_SYS_SPI_U_BOOT_OFFS 0x60000
#endif /* __CONFIG_SOCFPGA_SR1500_H__ */