On 18 August 2015 at 17:56, Sergey Temerkhanov <s.temerkha...@gmail.com> wrote:
> Change the dram_init() function on ThunderX to query ATF services for
> the real installed DRAM size
>
> Signed-off-by: Sergey Temerkhanov <s.temerkha...@gmail.com>
> Signed-off-by: Radha Mohan Chintakuntla <rchintakun...@cavium.com>
> ---
>
> Changes in v4: None
> Changes in v3: None
> Changes in v2: None
>
> board/cavium/thunderx/Makefile | 2 +-
> board/cavium/thunderx/dram.c | 35 +++++++++++++++++++++++++++++++++++
> board/cavium/thunderx/thunderx.c | 12 ------------
> 3 files changed, 36 insertions(+), 13 deletions(-)
> create mode 100644 board/cavium/thunderx/dram.c
>
> diff --git a/board/cavium/thunderx/Makefile b/board/cavium/thunderx/Makefile
> index c78c414..9200dd6 100644
> --- a/board/cavium/thunderx/Makefile
> +++ b/board/cavium/thunderx/Makefile
> @@ -5,4 +5,4 @@
> # SPDX-License-Identifier: GPL-2.0+
> #
>
> -obj-y := thunderx.o atf.o
> +obj-y := thunderx.o atf.o dram.o
> diff --git a/board/cavium/thunderx/dram.c b/board/cavium/thunderx/dram.c
> new file mode 100644
> index 0000000..858699d
> --- /dev/null
> +++ b/board/cavium/thunderx/dram.c
Use the same board file where you tried on 6/8 and do dram_init, may not
require to do an extra file for DDR initialization unless it a pure ddr driver.
Skip dram_init on 6/8 and add this patch on board file.
> @@ -0,0 +1,35 @@
> +/**
> + * (C) Copyright 2014, Cavium Inc.
> + *
> + * SPDX-License-Identifier: GPL-2.0+
> +**/
> +
> +#include <common.h>
> +#include <cavium/atf.h>
> +
> +DECLARE_GLOBAL_DATA_PTR;
> +
> +int dram_init(void)
> +{
> + ssize_t node_count = atf_node_count();
> + ssize_t dram_size;
> + int node;
> +
> + printf("Initializing\nNodes in system: %zd\n", node_count);
> +
> + gd->ram_size = 0;
> +
> + for (node = 0; node < node_count; node++) {
> + dram_size = atf_dram_size(node);
> + printf("Node %d: %zd MBytes of DRAM\n", node, dram_size >>
> 20);
> + gd->ram_size += dram_size;
> + }
> +
> + gd->ram_size -= MEM_BASE;
> +
> + *(unsigned long *)CPU_RELEASE_ADDR = 0;
> +
> + puts("DRAM size:");
> +
> + return 0;
> +}
> diff --git a/board/cavium/thunderx/thunderx.c
> b/board/cavium/thunderx/thunderx.c
> index c478dd7..6d37e22 100644
> --- a/board/cavium/thunderx/thunderx.c
> +++ b/board/cavium/thunderx/thunderx.c
> @@ -43,18 +43,6 @@ int board_init(void)
> return 0;
> }
>
> -int dram_init(void)
> -{
> - /*
> - * Clear spin table so that secondary processors
> - * observe the correct value after waken up from wfe.
> - */
> - *(unsigned long *)CPU_RELEASE_ADDR = 0;
> -
> - gd->ram_size = PHYS_SDRAM_1_SIZE;
> - return 0;
> -}
> -
> int timer_init(void)
> {
> return 0;
> --
> 2.2.0
>
thanks!
--
Jagan | openedev.
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