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powerpc/85xx: introduce function serdes_device_from_fm_port() 

In order to figure out which SerDes lane a given Fman port is connected
to, we need a function that maps the fm_port namespace to the srds_prtcl
namespace.

Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
This commit is contained in:
Timur Tabi 2012-08-14 06:47:23 +00:00 committed by Andy Fleming
parent ae2291fbe0
commit 45b092d301
2 changed files with 33 additions and 0 deletions
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31
board/freescale/common/fman.c
View File

@ -25,6 +25,9 @@
#include <libfdt_env.h> #include <libfdt_env.h>
#include <fdt_support.h> #include <fdt_support.h>
#include <fm_eth.h>
#include <asm/fsl_serdes.h>
/* /*
* Given the following ... * Given the following ...
* *
@ -67,3 +70,31 @@ int fdt_set_phy_handle(void *fdt, char *compat, phys_addr_t addr,
return fdt_setprop(fdt, offset, "phy-handle", &ph, sizeof(ph)); return fdt_setprop(fdt, offset, "phy-handle", &ph, sizeof(ph));
} }
/*
* Return the SerDes device enum for a given Fman port
*
* This function just maps the fm_port namespace to the srds_prtcl namespace.
*/
enum srds_prtcl serdes_device_from_fm_port(enum fm_port port)
{
static const enum srds_prtcl srds_table[] = {
[FM1_DTSEC1] = SGMII_FM1_DTSEC1,
[FM1_DTSEC2] = SGMII_FM1_DTSEC2,
[FM1_DTSEC3] = SGMII_FM1_DTSEC3,
[FM1_DTSEC4] = SGMII_FM1_DTSEC4,
[FM1_DTSEC5] = SGMII_FM1_DTSEC5,
[FM1_10GEC1] = XAUI_FM1,
[FM2_DTSEC1] = SGMII_FM2_DTSEC1,
[FM2_DTSEC2] = SGMII_FM2_DTSEC2,
[FM2_DTSEC3] = SGMII_FM2_DTSEC3,
[FM2_DTSEC4] = SGMII_FM2_DTSEC4,
[FM2_DTSEC5] = SGMII_FM2_DTSEC5,
[FM2_10GEC1] = XAUI_FM2,
};
if ((port < FM1_DTSEC1) || (port > FM2_10GEC1))
return NONE;
else
return srds_table[port];
}

2
board/freescale/common/fman.h
View File

@ -23,4 +23,6 @@
int fdt_set_phy_handle(void *fdt, char *compat, phys_addr_t addr, int fdt_set_phy_handle(void *fdt, char *compat, phys_addr_t addr,
const char *alias); const char *alias);
enum srds_prtcl serdes_device_from_fm_port(enum fm_port port);
#endif #endif