leandrof/u-boot
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

powerpc/85xx: Add SERDES support for P1010/P1014

Browse Source 
Add the ability to determine if a given IP block connected on SERDES is
configured. This is useful for things like PCIe and SRIO since they are only
ever connected on SERDES.

Updated MPC85xx_PORDEVSR_IO_SEL & MPC85xx_PORDEVSR_IO_SEL_SHIFT

Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
This commit is contained in:
Prabhakar Kushwaha 2011-01-20 16:34:41 +05:30 committed by Kumar Gala
parent 67a490d60d
commit 28747f9bb1
3 changed files with 82 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/powerpc/cpu/mpc85xx/Makefile
View File

@ -87,9 +87,11 @@ COBJS-$(CONFIG_MPC8548) += mpc8548_serdes.o
COBJS-$(CONFIG_MPC8568) += mpc8568_serdes.o
COBJS-$(CONFIG_MPC8569) += mpc8569_serdes.o
COBJS-$(CONFIG_MPC8572) += mpc8572_serdes.o
COBJS-$(CONFIG_P1010) += p1010_serdes.o
COBJS-$(CONFIG_P1011) += p1021_serdes.o
COBJS-$(CONFIG_P1012) += p1021_serdes.o
COBJS-$(CONFIG_P1013) += p1022_serdes.o
COBJS-$(CONFIG_P1014) += p1010_serdes.o
COBJS-$(CONFIG_P1020) += p1021_serdes.o
COBJS-$(CONFIG_P1021) += p1021_serdes.o
COBJS-$(CONFIG_P1022) += p1022_serdes.o

75
arch/powerpc/cpu/mpc85xx/p1010_serdes.c Normal file
View File

@ -0,0 +1,75 @@
/*
* Copyright 2011 Freescale Semiconductor, Inc.
* Author: Prabhakar Kushwaha <prabhakar@freescale.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at your option)
* any later version.
*/
#include <config.h>
#include <common.h>
#include <asm/io.h>
#include <asm/immap_85xx.h>
#include <asm/fsl_serdes.h>
#define SRDS1_MAX_LANES 4
#define SRDS2_MAX_LANES 2
static u32 serdes1_prtcl_map, serdes2_prtcl_map;
static const u8 serdes1_cfg_tbl[][SRDS1_MAX_LANES] = {
[0x00] = {NONE, NONE, NONE, NONE},
[0x01] = {PCIE1, PCIE2, SGMII_TSEC2, SGMII_TSEC3},
[0x02] = {PCIE1, SGMII_TSEC1, SGMII_TSEC2, SGMII_TSEC3},
[0x03] = {NONE, SGMII_TSEC1, SGMII_TSEC2, SGMII_TSEC3},
};
static const u8 serdes2_cfg_tbl[][SRDS2_MAX_LANES] = {
[0x00] = {NONE, NONE},
[0x01] = {SATA1, SATA2},
[0x02] = {SATA1, SATA2},
[0x03] = {PCIE1, PCIE2},
};
int is_serdes_configured(enum srds_prtcl device)
{
int ret = (1 << device) & serdes1_prtcl_map;
if (ret)
return ret;
return (1 << device) & serdes2_prtcl_map;
}
void fsl_serdes_init(void)
{
ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR;
u32 pordevsr = in_be32(&gur->pordevsr);
u32 srds_cfg = (pordevsr & MPC85xx_PORDEVSR_IO_SEL) >>
MPC85xx_PORDEVSR_IO_SEL_SHIFT;
int lane;
debug("PORDEVSR[IO_SEL_SRDS] = %x\n", srds_cfg);
if (srds_cfg > ARRAY_SIZE(serdes1_cfg_tbl)) {
printf("Invalid PORDEVSR[IO_SEL_SRDS] = %d\n", srds_cfg);
return;
}
for (lane = 0; lane < SRDS1_MAX_LANES; lane++) {
enum srds_prtcl lane_prtcl = serdes1_cfg_tbl[srds_cfg][lane];
serdes1_prtcl_map |= (1 << lane_prtcl);
}
if (srds_cfg > ARRAY_SIZE(serdes2_cfg_tbl)) {
printf("Invalid PORDEVSR[IO_SEL_SRDS] = %d\n", srds_cfg);
return;
}
for (lane = 0; lane < SRDS2_MAX_LANES; lane++) {
enum srds_prtcl lane_prtcl = serdes2_cfg_tbl[srds_cfg][lane];
serdes2_prtcl_map |= (1 << lane_prtcl);
}
}

5
arch/powerpc/include/asm/immap_85xx.h
View File

@ -1874,8 +1874,13 @@ typedef struct ccsr_gur {
#define MPC85xx_PORDEVSR_IO_SEL 0x007c0000
#define MPC85xx_PORDEVSR_IO_SEL_SHIFT 18
#else
#if defined(CONFIG_P1010)
#define MPC85xx_PORDEVSR_IO_SEL 0x00600000
#define MPC85xx_PORDEVSR_IO_SEL_SHIFT 21
#else
#define MPC85xx_PORDEVSR_IO_SEL 0x00780000
#define MPC85xx_PORDEVSR_IO_SEL_SHIFT 19
#endif /* if defined(CONFIG_P1010) */
#endif
#define MPC85xx_PORDEVSR_PCI2_ARB 0x00040000
#define MPC85xx_PORDEVSR_PCI1_ARB 0x00020000