This series of patches fixes a hang seen when loading U-Boot from SPI or NAND on Seaboard and Harmony due to a missing PLLX init. It also corrects a UARTD bit error in clk_rst.h, and adds rudimentary GPIO support so that the UART on Seaboard can be used by U-Boot (UARTD & SPIFLASH are muxed, and the default POR setting is for SPI access, so GPIO_PI3 has to be driven low to enable serial console I/O over UARTD). Harmony has no SPIFLASH, so the issue doesn't exist there.
With these changes, I can write U-Boot to SPI on Seaboard and boot with it to the U-Boot cmd prompt. This should also apply to loading from NAND on Seaboard and Harmony - testing to follow.
Tom Warren (3): arm: Tegra2: Add missing PLLX init arm: Tegra2: GPIO: Add basic GPIO functionality arm: Tegra2: Move clk/mux init to board_early_init_f, add GPIO init
arch/arm/cpu/armv7/tegra2/ap20.c | 29 ++++++++++++++ arch/arm/include/asm/arch-tegra2/clk_rst.h | 6 ++- arch/arm/include/asm/arch-tegra2/gpio.h | 59 ++++++++++++++++++++++++++++ arch/arm/include/asm/arch-tegra2/tegra2.h | 1 + board/nvidia/common/board.c | 32 ++++++++++----- board/nvidia/common/board.h | 4 ++ board/nvidia/harmony/Makefile | 1 + board/nvidia/harmony/harmony.c | 34 ++++++++++++++++ board/nvidia/seaboard/Makefile | 1 + board/nvidia/seaboard/seaboard.c | 52 ++++++++++++++++++++++++ 10 files changed, 206 insertions(+), 13 deletions(-) create mode 100644 arch/arm/include/asm/arch-tegra2/gpio.h create mode 100644 board/nvidia/harmony/harmony.c create mode 100644 board/nvidia/seaboard/seaboard.c