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board: lx2160aqds: implement board_fit_config_name_match

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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.ciornei@nxp.com>
Reviewed-by: Razvan Ionut Cirjan <razvanionut.cirjan@nxp.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
This commit is contained in:
Ioana Ciornei 2020-04-27 15:21:16 +03:00 • committed by Priyanka Jain
parent 4057bddaa2
commit f49613f4aa
1 changed files with 109 additions and 0 deletions
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109
board/freescale/lx2160a/eth_lx2160aqds.c
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@ -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