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sunxi/nand: Add support to the SPL for loading u-boot from internal NAND memory

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This commit adds support to the sunxi SPL to load u-boot from the internal
NAND. Note this only adds support to access the boot partitions to load
u-boot, full NAND support to load the kernel, etc. from the nand data
partition will come later.

Signed-off-by: Roy Spliet <r.spliet@ultimaker.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
This commit is contained in:
Daniel Kochmański
2015-05-26 17:00:42 +02:00
committed by Hans de Goede
parent d0f4200392
commit f76eba38b3
13 changed files with 419 additions and 2 deletions
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12
board/sunxi/Kconfig
View File

@@ -271,6 +271,18 @@ config MMC_SUNXI_SLOT_EXTRA
slot or emmc on mmc1 - mmc3. Setting this to 1, 2 or 3 will enable
support for this.
config SPL_NAND_SUPPORT
bool "SPL/NAND mode support"
depends on SPL
default n
---help---
This enables support for booting from NAND internal
memory. U-Boot SPL doesn't detect where is it load from,
therefore this option is needed to properly load image from
flash. Option also disables MMC functionality on U-Boot due to
initialization errors encountered, when both controllers are
enabled.
config USB0_VBUS_PIN
string "Vbus enable pin for usb0 (otg)"
default ""

18
board/sunxi/board.c
View File

@@ -22,6 +22,9 @@
#ifdef CONFIG_AXP221_POWER
#include <axp221.h>
#endif
#ifdef CONFIG_NAND_SUNXI
#include <nand.h>
#endif
#include <asm/arch/clock.h>
#include <asm/arch/cpu.h>
#include <asm/arch/display.h>
@@ -315,6 +318,21 @@ int board_mmc_init(bd_t *bis)
}
#endif
#ifdef CONFIG_NAND
void board_nand_init(void)
{
unsigned int pin;
static u8 ports[] = CONFIG_NAND_SUNXI_GPC_PORTS;
/* Configure AHB muxes to connect output pins with NAND controller */
for (pin = 0; pin < 16; pin++)
sunxi_gpio_set_cfgpin(SUNXI_GPC(pin), SUNXI_GPC_NAND);
for (pin = 0; pin < ARRAY_SIZE(ports); pin++)
sunxi_gpio_set_cfgpin(SUNXI_GPC(ports[pin]), SUNXI_GPC_NAND);
}
#endif
void i2c_init_board(void)
{
#ifdef CONFIG_I2C0_ENABLE