Hi Joel,

On Tue, Jan 21, 2020 at 10:32:17AM -0700, Joel Johnson wrote:
> Add a unique entry for ClearFog Base variant, reflected in the board
> name and adjusted SerDes topology.
> 
> Signed-off-by: Joel Johnson <mrj...@lixil.net>
> 
> ---
> 
> v2 changes:
>   - reworked based on Baruch's run-time TLV EEPROM detection series
> v3 changes:
>   - rebased on mvebu merged run-time TLV EEPROM detection series
>   - minor update to help test regarding runtime detection failures
> 
> ---
>  arch/arm/mach-mvebu/Kconfig        |  2 ++
>  board/solidrun/clearfog/Kconfig    | 18 ++++++++++++++++++
>  board/solidrun/clearfog/clearfog.c | 12 ++++++++++++
>  3 files changed, 32 insertions(+)
>  create mode 100644 board/solidrun/clearfog/Kconfig
> 
> diff --git a/arch/arm/mach-mvebu/Kconfig b/arch/arm/mach-mvebu/Kconfig
> index bc5eaa5a76..161dee937f 100644
> --- a/arch/arm/mach-mvebu/Kconfig
> +++ b/arch/arm/mach-mvebu/Kconfig
> @@ -280,4 +280,6 @@ config SECURED_MODE_CSK_INDEX
>       default 0
>       depends on SECURED_MODE_IMAGE
>  
> +source "board/solidrun/clearfog/Kconfig"
> +
>  endif
> diff --git a/board/solidrun/clearfog/Kconfig b/board/solidrun/clearfog/Kconfig
> new file mode 100644
> index 0000000000..936d5918f8
> --- /dev/null
> +++ b/board/solidrun/clearfog/Kconfig
> @@ -0,0 +1,18 @@
> +menu "ClearFog configuration"
> +     depends on TARGET_CLEARFOG
> +
> +config TARGET_CLEARFOG_BASE
> +     bool "Use ClearFog Base static configuration"
> +     help
> +       Use the ClearFog Base as the static configuration instead of the
> +       default which uses the ClearFog Pro.
> +
> +       Runtime board detection is always attempted and used if available. The
> +       static configuration is used as a fallback in cases where runtime
> +       detection is disabled, is not available in hardware, or otherwise 
> fails.
> +
> +       Only newer revisions of the ClearFog product line support runtime
> +       detection via additional EEPROM hardware. This option enables 
> selecting
> +       the Base variant for older hardware revisions.
> +
> +endmenu
> diff --git a/board/solidrun/clearfog/clearfog.c 
> b/board/solidrun/clearfog/clearfog.c
> index e268ef55a2..e77b9465d4 100644
> --- a/board/solidrun/clearfog/clearfog.c
> +++ b/board/solidrun/clearfog/clearfog.c
> @@ -47,7 +47,11 @@ static struct serdes_map board_serdes_map[] = {
>       {SGMII1, SERDES_SPEED_1_25_GBPS, SERDES_DEFAULT_MODE, 0, 0},
>       {PEX1, SERDES_SPEED_5_GBPS, PEX_ROOT_COMPLEX_X1, 0, 0},
>       {USB3_HOST1, SERDES_SPEED_5_GBPS, SERDES_DEFAULT_MODE, 0, 0},
> +#if defined (CONFIG_TARGET_CLEARFOG_BASE)
> +     {USB3_HOST0, SERDES_SPEED_5_GBPS, SERDES_DEFAULT_MODE, 0, 0},
> +#else
>       {PEX2, SERDES_SPEED_5_GBPS, PEX_ROOT_COMPLEX_X1, 0, 0},
> +#endif

I'd prefer run-time test instead of '#ifdefs' that IMO make the code harder to 
read. Something like this (build tested only):

diff --git a/board/solidrun/clearfog/clearfog.c 
b/board/solidrun/clearfog/clearfog.c
index e268ef55a2a0..202c60cb7841 100644
--- a/board/solidrun/clearfog/clearfog.c
+++ b/board/solidrun/clearfog/clearfog.c
@@ -55,7 +55,8 @@ int hws_board_topology_load(struct serdes_map 
**serdes_map_array, u8 *count)
 {
        cf_read_tlv_data();
 
-       if (sr_product_is(&cf_tlv_data, "Clearfog GTR")) {
+       if (sr_product_is(&cf_tlv_data, "Clearfog GTR") ||
+                       CONFIG_IS_ENABLED(TARGET_CLEARFOG_BASE)) {
                board_serdes_map[0].serdes_type = PEX0;
                board_serdes_map[0].serdes_speed = SERDES_SPEED_5_GBPS;
                board_serdes_map[0].serdes_mode = PEX_ROOT_COMPLEX_X1;
@@ -172,6 +173,9 @@ int checkboard(void)
 {
        char *board = "ClearFog";
 
+       if (CONFIG_IS_ENABLED(TARGET_CLEARFOG_BASE))
+               board = "ClearFog Base";
+
        cf_read_tlv_data();
        if (strlen(cf_tlv_data.tlv_product_name[0]) > 0)
                board = cf_tlv_data.tlv_product_name[0];
@@ -194,7 +198,8 @@ int board_late_init(void)
 {
        cf_read_tlv_data();
 
-       if (sr_product_is(&cf_tlv_data, "Clearfog Base"))
+       if (sr_product_is(&cf_tlv_data, "Clearfog Base") ||
+                       CONFIG_IS_ENABLED(TARGET_CLEARFOG_BASE))
                env_set("fdtfile", "armada-388-clearfog-base.dtb");
        else if (sr_product_is(&cf_tlv_data, "Clearfog GTR S4"))
                env_set("fdtfile", "armada-385-clearfog-gtr-s4.dtb");

What do you think?

baruch

-- 
     http://baruch.siach.name/blog/                  ~. .~   Tk Open Systems
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