[U-Boot] [PATCH v2 7/7] am335x_evm: Add support to boot from NOR.

[Peter Korsgaard]

>>>>> "Tom" == Tom Rini <trini at ti.com> writes:

 Tom> From: Steve Kipisz <s-kipisz2 at ti.com>
 Tom> NOR requires that s_init be within the first 4KiB of the image so that
 Tom> we can perform the rest of the required pinmuxing to talk with the rest
 Tom> of NOR that we are found on.  When NOR_BOOT is set we save our
 Tom> environment in NOR at 512KiB and a redundant copy at 768KiB.  We avoid
 Tom> using SPL for this case and u-boot.bin is written directly to the start
 Tom> of NOR.

 Tom> Signed-off-by: Steve Kipisz <s-kipisz2 at ti.com>
 Tom> Signed-off-by: Tom Rini <trini at ti.com>

 Tom> ---
 Tom> Changes in v2:
 Tom> - Reword commit message slightly
 Tom> ---
 Tom>  arch/arm/cpu/armv7/am33xx/emif4.c |    6 +-
 Tom>  board/ti/am335x/Makefile          |    2 +-
 Tom>  board/ti/am335x/board.c           |   31 ++++++++++-
 Tom>  board/ti/am335x/mux.c             |    6 +-
 Tom>  board/ti/am335x/u-boot.lds        |  110 +++++++++++++++++++++++++++++++++++++
 Tom>  boards.cfg                        |    1 +
 Tom>  include/configs/am335x_evm.h      |   26 ++++++++-
 Tom>  7 files changed, 173 insertions(+), 9 deletions(-)
 Tom>  create mode 100644 board/ti/am335x/u-boot.lds

 Tom> diff --git a/arch/arm/cpu/armv7/am33xx/emif4.c b/arch/arm/cpu/armv7/am33xx/emif4.c
 Tom> index aa84e96..370230b 100644
 Tom> --- a/arch/arm/cpu/armv7/am33xx/emif4.c
 Tom> +++ b/arch/arm/cpu/armv7/am33xx/emif4.c
 Tom> @@ -43,9 +43,11 @@ void dram_init_banksize(void)
 Tom>  }
 
 
 Tom> -#ifdef CONFIG_SPL_BUILD
 Tom> +#if defined(CONFIG_SPL_BUILD) || defined(CONFIG_NOR_BOOT)
 Tom> +#ifdef CONFIG_TI81XX
 Tom>  static struct dmm_lisa_map_regs *hw_lisa_map_regs =
 Tom>  				(struct dmm_lisa_map_regs *)DMM_BASE;
 Tom> +#endif
 Tom>  static struct vtp_reg *vtpreg[2] = {
 Tom>  				(struct vtp_reg *)VTP0_CTRL_ADDR,
 Tom>  				(struct vtp_reg *)VTP1_CTRL_ADDR};
 Tom> @@ -53,6 +55,7 @@ static struct vtp_reg *vtpreg[2] = {
 Tom>  static struct ddr_ctrl *ddrctrl = (struct ddr_ctrl *)DDR_CTRL_ADDR;
 Tom>  #endif
 
 Tom> +#ifdef CONFIG_TI81XX

Why are you adding the TI81XX dependency here? That doesn't have
anything to do with nor boot, does it?


 Tom>  void config_dmm(const struct dmm_lisa_map_regs *regs)
 Tom>  {
 Tom>  	enable_dmm_clocks();
 Tom> @@ -67,6 +70,7 @@ void config_dmm(const struct dmm_lisa_map_regs *regs)
 Tom>  	writel(regs->dmm_lisa_map_1, &hw_lisa_map_regs->dmm_lisa_map_1);
 Tom>  	writel(regs->dmm_lisa_map_0, &hw_lisa_map_regs->dmm_lisa_map_0);
 Tom>  }
 Tom> +#endif

-- 
Bye, Peter Korsgaard