u-boot-brain/arch/powerpc/cpu/mpc85xx/c29x_serdes.c
Mingkai Hu 3b75e98273 powerpc/85xx: Add C29x SoC support
The Freescale C29x family is a high performance crypto co-processor.
It combines a single e500v2 core with necessary SEC engine. There're
three SoC types(C291, C292, C293) with the following features:

 - 512K L2 Cache/SRAM and 512 KB platform SRAM
 - DDR3/DDR3L 32bit DDR controller
 - One PCI express (x1, x2, x4) Gen 2.0 Controller
 - Trust Architecture 2.0
 - SEC6.0 engine

Signed-off-by: Mingkai Hu <Mingkai.Hu@freescale.com>
Signed-off-by: Po Liu <Po.Liu@freescale.com>
2013-08-09 12:41:42 -07:00

66 lines
1.6 KiB
C

/*
* Copyright 2013 Freescale Semiconductor, Inc.
*
* 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
static u32 serdes1_prtcl_map;
struct serdes_config {
u32 protocol;
u8 lanes[SRDS1_MAX_LANES];
};
static const struct serdes_config serdes1_cfg_tbl[] = {
/* SerDes 1 */
{1, {PCIE1, PCIE1, PCIE1, PCIE1} },
{2, {PCIE1, PCIE1, PCIE1, PCIE1} },
{3, {PCIE1, PCIE1, NONE, NONE} },
{4, {PCIE1, PCIE1, NONE, NONE} },
{5, {PCIE1, NONE, NONE, NONE} },
{6, {PCIE1, NONE, NONE, NONE} },
{}
};
int is_serdes_configured(enum srds_prtcl device)
{
return (1 << device) & serdes1_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;
const struct serdes_config *ptr;
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;
}
ptr = &serdes1_cfg_tbl[srds_cfg];
if (!ptr->protocol)
return;
for (lane = 0; lane < SRDS1_MAX_LANES; lane++) {
enum srds_prtcl lane_prtcl = ptr->lanes[lane];
serdes1_prtcl_map |= (1 << lane_prtcl);
}
}