> -----Original Message-----
> From: Ioana Ciornei <ioana.cior...@nxp.com>
> Sent: Monday, April 27, 2020 3:21 PM
> To: Priyanka Jain <priyanka.j...@nxp.com>; u-boot@lists.denx.de
> Cc: Alexandru Marginean <alexandru.margin...@nxp.com>; Madalin Bucur
> <madalin.bu...@nxp.com>; Florin Laurentiu Chiculita
> <florinlaurentiu.chicul...@nxp.com>; Razvan Ionut Cirjan
> <razvanionut.cir...@nxp.com>; Ioana Ciornei <ioana.cior...@nxp.com>
> Subject: [PATCH v2 5/6] board: lx2160aqds: implement
> board_fit_config_name_match
>
> In case CONFIG_DM_ETH and CONFIG_MULTI_DTB_FIT are enabled
> implement the
> board_fit_config_name_match() function in order to choose the appropriate
> DTS for the current SERDES protocol configuration.
>
> Signed-off-by: Ioana Ciornei <ioana.cior...@nxp.com>
Reviewed-by: Razvan Ionut Cirjan <razvanionut.cir...@nxp.com>
Thanks,
Razvan
> ---
> Changes in v2:
> - none
>
> board/freescale/lx2160a/eth_lx2160aqds.c | 109 +++++++++++++++++++++++
> 1 file changed, 109 insertions(+)
>
> diff --git a/board/freescale/lx2160a/eth_lx2160aqds.c
> b/board/freescale/lx2160a/eth_lx2160aqds.c
> index 3b7830343d1e..d90b5c3e3a2f 100644
> --- a/board/freescale/lx2160a/eth_lx2160aqds.c
> +++ b/board/freescale/lx2160a/eth_lx2160aqds.c
> @@ -848,3 +848,112 @@ int fdt_fixup_board_phy(void *fdt) } #endif //
> CONFIG_FSL_MC_ENET #endif
> +
> +#if defined(CONFIG_DM_ETH) && defined(CONFIG_MULTI_DTB_FIT)
> +
> +/* Structure to hold SERDES protocols supported in case of
> + * CONFIG_DM_ETH enabled (network interfaces are described in the DTS).
> + *
> + * @serdes_block: the index of the SERDES block
> + * @serdes_protocol: the decimal value of the protocol supported
> + * @dts_needed: DTS notes describing the current configuration are
> +needed
> + *
> + * When dts_needed is true, the board_fit_config_name_match() function
> + * will try to exactly match the current configuration of the block
> +with a DTS
> + * name provided.
> + */
> +static struct serdes_configuration {
> + u8 serdes_block;
> + u32 serdes_protocol;
> + bool dts_needed;
> +} supported_protocols[] = {
> + /* Serdes block #1 */
> + {1, 3, true},
> + {1, 7, true},
> + {1, 19, true},
> + {1, 20, true},
> +
> + /* Serdes block #2 */
> + {2, 2, false},
> + {2, 3, false},
> + {2, 5, false},
> + {2, 11, true},
> +
> + /* Serdes block #3 */
> + {3, 2, false},
> + {3, 3, false},
> +};
> +
> +#define SUPPORTED_SERDES_PROTOCOLS ARRAY_SIZE(supported_protocols)
> +
> +static bool protocol_supported(u8 serdes_block, u32 protocol) {
> + struct serdes_configuration serdes_conf;
> + int i;
> +
> + for (i = 0; i < SUPPORTED_SERDES_PROTOCOLS; i++) {
> + serdes_conf = supported_protocols[i];
> + if (serdes_conf.serdes_block == serdes_block &&
> + serdes_conf.serdes_protocol == protocol)
> + return true;
> + }
> +
> + return false;
> +}
> +
> +static void get_str_protocol(u8 serdes_block, u32 protocol, char *str)
> +{
> + struct serdes_configuration serdes_conf;
> + int i;
> +
> + for (i = 0; i < SUPPORTED_SERDES_PROTOCOLS; i++) {
> + serdes_conf = supported_protocols[i];
> + if (serdes_conf.serdes_block == serdes_block &&
> + serdes_conf.serdes_protocol == protocol) {
> + if (serdes_conf.dts_needed == true)
> + sprintf(str, "%u", protocol);
> + else
> + sprintf(str, "x");
> + return;
> + }
> + }
> +}
> +
> +int board_fit_config_name_match(const char *name) {
> + struct ccsr_gur *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
> + u32 rcw_status = in_le32(&gur->rcwsr[28]);
> + char srds_s1_str[2], srds_s2_str[2], srds_s3_str[2];
> + u32 srds_s1, srds_s2, srds_s3;
> + char expected_dts[100];
> +
> + srds_s1 = rcw_status & FSL_CHASSIS3_RCWSR28_SRDS1_PRTCL_MASK;
> + srds_s1 >>= FSL_CHASSIS3_RCWSR28_SRDS1_PRTCL_SHIFT;
> +
> + srds_s2 = rcw_status & FSL_CHASSIS3_RCWSR28_SRDS2_PRTCL_MASK;
> + srds_s2 >>= FSL_CHASSIS3_RCWSR28_SRDS2_PRTCL_SHIFT;
> +
> + srds_s3 = rcw_status & FSL_CHASSIS3_RCWSR28_SRDS3_PRTCL_MASK;
> + srds_s3 >>= FSL_CHASSIS3_RCWSR28_SRDS3_PRTCL_SHIFT;
> +
> + /* Check for supported protocols. The default DTS will be used
> + * in this case
> + */
> + if (!protocol_supported(1, srds_s1) ||
> + !protocol_supported(2, srds_s2) ||
> + !protocol_supported(3, srds_s3))
> + return -1;
> +
> + get_str_protocol(1, srds_s1, srds_s1_str);
> + get_str_protocol(2, srds_s2, srds_s2_str);
> + get_str_protocol(3, srds_s3, srds_s3_str);
> +
> + sprintf(expected_dts, "fsl-lx2160a-qds-%s-%s-%s",
> + srds_s1_str, srds_s2_str, srds_s3_str);
> +
> + if (!strcmp(name, expected_dts))
> + return 0;
> +
> + return -1;
> +}
> +#endif
> --
> 2.17.1
