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armv8: Add SerDes framework for Layerscape Architecture 

Add support of SerDes framework for Layerscape Architecture.
    - Add support of 2 SerDes block
    - Add SerDes protocol parsing and detection
    - Create table of SerDes protocol supported by LS2085A

Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
Signed-off-by: Minghuan Lian <Minghuan.Lian@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
This commit is contained in:
Minghuan Lian 2015-03-20 19:28:16 -07:00 committed by York Sun
parent 5753b0f1b0
commit 31d34c6c4b
8 changed files with 313 additions and 0 deletions
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1
arch/arm/cpu/armv8/fsl-lsch3/Makefile
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@ -8,5 +8,6 @@ obj-y += cpu.o
obj-y += lowlevel.o
obj-y += soc.o
obj-y += speed.o
obj-$(CONFIG_SYS_HAS_SERDES) += fsl_lsch3_serdes.o ls2085a_serdes.o
obj-$(CONFIG_MP) += mp.o
obj-$(CONFIG_OF_LIBFDT) += fdt.o

4
arch/arm/cpu/armv8/fsl-lsch3/cpu.c
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@ -12,6 +12,7 @@
#include <asm/arch-fsl-lsch3/immap_lsch3.h>
#include <fsl_debug_server.h>
#include <fsl-mc/fsl_mc.h>
#include <asm/arch/fsl_serdes.h>
#include "cpu.h"
#include "mp.h"
#include "speed.h"
@ -415,6 +416,9 @@ int arch_early_init_r(void)
if (rv)
printf("Did not wake secondary cores\n");
#ifdef CONFIG_SYS_HAS_SERDES
fsl_serdes_init();
#endif
return 0;
}

110
arch/arm/cpu/armv8/fsl-lsch3/fsl_lsch3_serdes.c Normal file
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@ -0,0 +1,110 @@
/*
* Copyright 2015 Freescale Semiconductor, Inc.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <asm/io.h>
#include <asm/errno.h>
#include <asm/arch/fsl_serdes.h>
#include <asm/arch-fsl-lsch3/immap_lsch3.h>
#ifdef CONFIG_SYS_FSL_SRDS_1
static u8 serdes1_prtcl_map[SERDES_PRCTL_COUNT];
#endif
#ifdef CONFIG_SYS_FSL_SRDS_2
static u8 serdes2_prtcl_map[SERDES_PRCTL_COUNT];
#endif
int is_serdes_configured(enum srds_prtcl device)
{
int ret = 0;
#ifdef CONFIG_SYS_FSL_SRDS_1
ret |= serdes1_prtcl_map[device];
#endif
#ifdef CONFIG_SYS_FSL_SRDS_2
ret |= serdes2_prtcl_map[device];
#endif
return !!ret;
}
int serdes_get_first_lane(u32 sd, enum srds_prtcl device)
{
struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
u32 cfg = in_le32(&gur->rcwsr[28]);
int i;
switch (sd) {
#ifdef CONFIG_SYS_FSL_SRDS_1
case FSL_SRDS_1:
cfg &= FSL_CHASSIS3_RCWSR28_SRDS1_PRTCL_MASK;
cfg >>= FSL_CHASSIS3_RCWSR28_SRDS1_PRTCL_SHIFT;
break;
#endif
#ifdef CONFIG_SYS_FSL_SRDS_2
case FSL_SRDS_2:
cfg &= FSL_CHASSIS3_RCWSR28_SRDS2_PRTCL_MASK;
cfg >>= FSL_CHASSIS3_RCWSR28_SRDS2_PRTCL_SHIFT;
break;
#endif
default:
printf("invalid SerDes%d\n", sd);
break;
}
/* Is serdes enabled at all? */
if (cfg == 0)
return -ENODEV;
for (i = 0; i < SRDS_MAX_LANES; i++) {
if (serdes_get_prtcl(sd, cfg, i) == device)
return i;
}
return -ENODEV;
}
void serdes_init(u32 sd, u32 sd_addr, u32 sd_prctl_mask, u32 sd_prctl_shift,
u8 serdes_prtcl_map[SERDES_PRCTL_COUNT])
{
struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
u32 cfg;
int lane;
memset(serdes_prtcl_map, 0, sizeof(serdes_prtcl_map));
cfg = in_le32(&gur->rcwsr[28]) & sd_prctl_mask;
cfg >>= sd_prctl_shift;
printf("Using SERDES%d Protocol: %d (0x%x)\n", sd + 1, cfg, cfg);
if (!is_serdes_prtcl_valid(sd, cfg))
printf("SERDES%d[PRTCL] = 0x%x is not valid\n", sd + 1, cfg);
for (lane = 0; lane < SRDS_MAX_LANES; lane++) {
enum srds_prtcl lane_prtcl = serdes_get_prtcl(sd, cfg, lane);
if (unlikely(lane_prtcl >= SERDES_PRCTL_COUNT))
debug("Unknown SerDes lane protocol %d\n", lane_prtcl);
else
serdes_prtcl_map[lane_prtcl] = 1;
}
}
void fsl_serdes_init(void)
{
#ifdef CONFIG_SYS_FSL_SRDS_1
serdes_init(FSL_SRDS_1,
CONFIG_SYS_FSL_LSCH3_SERDES_ADDR,
FSL_CHASSIS3_RCWSR28_SRDS1_PRTCL_MASK,
FSL_CHASSIS3_RCWSR28_SRDS1_PRTCL_SHIFT,
serdes1_prtcl_map);
#endif
#ifdef CONFIG_SYS_FSL_SRDS_2
serdes_init(FSL_SRDS_2,
CONFIG_SYS_FSL_LSCH3_SERDES_ADDR + FSL_SRDS_2 * 0x10000,
FSL_CHASSIS3_RCWSR28_SRDS2_PRTCL_MASK,
FSL_CHASSIS3_RCWSR28_SRDS2_PRTCL_SHIFT,
serdes2_prtcl_map);
#endif
}

117
arch/arm/cpu/armv8/fsl-lsch3/ls2085a_serdes.c Normal file
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@ -0,0 +1,117 @@
/*
* Copyright 2015 Freescale Semiconductor, Inc.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <asm/arch/fsl_serdes.h>
#include <asm/arch-fsl-lsch3/immap_lsch3.h>
struct serdes_config {
u8 protocol;
u8 lanes[SRDS_MAX_LANES];
};
static struct serdes_config serdes1_cfg_tbl[] = {
/* SerDes 1 */
{0x03, {PCIE1, PCIE1, PCIE1, PCIE1, PCIE2, PCIE2, PCIE2, PCIE2 } },
{0x05, {PCIE2, PCIE2, PCIE2, PCIE2, SGMII4, SGMII3, SGMII2, SGMII1 } },
{0x07, {SGMII8, SGMII7, SGMII6, SGMII5, SGMII4, SGMII3, SGMII2,
SGMII1 } },
{0x09, {SGMII8, SGMII7, SGMII6, SGMII5, SGMII4, SGMII3, SGMII2,
SGMII1 } },
{0x0A, {SGMII8, SGMII7, SGMII6, SGMII5, SGMII4, SGMII3, SGMII2,
SGMII1 } },
{0x0C, {SGMII8, SGMII7, SGMII6, SGMII5, SGMII4, SGMII3, SGMII2,
SGMII1 } },
{0x0E, {SGMII8, SGMII7, SGMII6, SGMII5, SGMII4, SGMII3, SGMII2,
SGMII1 } },
{0x26, {SGMII8, SGMII7, SGMII6, SGMII5, SGMII4, SGMII3, XFI2, XFI1 } },
{0x28, {SGMII8, SGMII7, SGMII6, SGMII5, XFI4, XFI3, XFI2, XFI1 } },
{0x2A, {XFI8, XFI7, XFI6, XFI5, XFI4, XFI3, XFI2, XFI1 } },
{0x2B, {SGMII8, SGMII7, SGMII6, SGMII5, XAUI1, XAUI1, XAUI1, XAUI1 } },
{0x32, {XAUI2, XAUI2, XAUI2, XAUI2, XAUI1, XAUI1, XAUI1, XAUI1 } },
{0x33, {PCIE2, PCIE2, PCIE2, PCIE2, QSGMII_D, QSGMII_C, QSGMII_B,
QSGMII_A} },
{0x35, {QSGMII_D, QSGMII_C, QSGMII_B, PCIE2, XFI4, XFI3, XFI2, XFI1 } },
{}
};
static struct serdes_config serdes2_cfg_tbl[] = {
/* SerDes 2 */
{0x07, {SGMII9, SGMII10, SGMII11, SGMII12, SGMII13, SGMII14, SGMII15,
SGMII16 } },
{0x09, {SGMII9, SGMII10, SGMII11, SGMII12, SGMII13, SGMII14, SGMII15,
SGMII16 } },
{0x0A, {SGMII9, SGMII10, SGMII11, SGMII12, SGMII13, SGMII14, SGMII15,
SGMII16 } },
{0x0C, {SGMII9, SGMII10, SGMII11, SGMII12, SGMII13, SGMII14, SGMII15,
SGMII16 } },
{0x0E, {SGMII9, SGMII10, SGMII11, SGMII12, SGMII13, SGMII14, SGMII15,
SGMII16 } },
{0x3D, {PCIE3, PCIE3, PCIE3, PCIE3, PCIE3, PCIE3, PCIE3, PCIE3 } },
{0x3E, {PCIE3, PCIE3, PCIE3, PCIE3, PCIE3, PCIE3, PCIE3, PCIE3 } },
{0x3F, {PCIE3, PCIE3, PCIE3, PCIE3, PCIE4, PCIE4, PCIE4, PCIE4 } },
{0x40, {PCIE3, PCIE3, PCIE3, PCIE3, PCIE4, PCIE4, PCIE4, PCIE4 } },
{0x41, {PCIE3, PCIE3, PCIE3, PCIE3, PCIE4, PCIE4, SATA1, SATA2 } },
{0x42, {PCIE3, PCIE3, PCIE3, PCIE3, PCIE4, PCIE4, SATA1, SATA2 } },
{0x43, {PCIE3, PCIE3, PCIE3, PCIE3, NONE, NONE, SATA1, SATA2 } },
{0x44, {PCIE3, PCIE3, PCIE3, PCIE3, NONE, NONE, SATA1, SATA2 } },
{0x45, {PCIE3, SGMII10, SGMII11, SGMII12, PCIE4, SGMII14, SGMII15,
SGMII16 } },
{0x47, {SGMII9, SGMII10, SGMII11, SGMII12, PCIE4, PCIE4, PCIE4,
PCIE4 } },
{0x49, {SGMII9, SGMII10, SGMII11, SGMII12, PCIE4, PCIE4, SATA1,
SATA2 } },
{0x4A, {SGMII9, SGMII10, SGMII11, SGMII12, PCIE4, PCIE4, SATA1,
SATA2 } },
{}
};
static struct serdes_config *serdes_cfg_tbl[] = {
serdes1_cfg_tbl,
serdes2_cfg_tbl,
};
enum srds_prtcl serdes_get_prtcl(int serdes, int cfg, int lane)
{
struct serdes_config *ptr;
if (serdes >= ARRAY_SIZE(serdes_cfg_tbl))
return 0;
ptr = serdes_cfg_tbl[serdes];
while (ptr->protocol) {
if (ptr->protocol == cfg)
return ptr->lanes[lane];
ptr++;
}
return 0;
}
int is_serdes_prtcl_valid(int serdes, u32 prtcl)
{
int i;
struct serdes_config *ptr;
if (serdes >= ARRAY_SIZE(serdes_cfg_tbl))
return 0;
ptr = serdes_cfg_tbl[serdes];
while (ptr->protocol) {
if (ptr->protocol == prtcl)
break;
ptr++;
}
if (!ptr->protocol)
return 0;
for (i = 0; i < SRDS_MAX_LANES; i++) {
if (ptr->lanes[i] != NONE)
return 1;
}
return 0;
}

4
arch/arm/include/asm/arch-fsl-lsch3/config.h
View File

@ -38,6 +38,8 @@
#define CONFIG_SYS_FSL_PMU_CLTBENR (CONFIG_SYS_FSL_PMU_ADDR + \
0x18A0)
#define CONFIG_SYS_FSL_LSCH3_SERDES_ADDR (CONFIG_SYS_IMMR + 0xEA0000)
/* SP (Cortex-A5) related */
#define CONFIG_SYS_FSL_SP_ADDR (CONFIG_SYS_IMMR + 0x00F00000)
#define CONFIG_SYS_FSL_SP_VSG_GIC_ADDR (CONFIG_SYS_FSL_SP_ADDR)
@ -133,6 +135,8 @@
#define CONFIG_SYS_FSL_IFC_BANK_COUNT 8
#define CONFIG_NUM_DDR_CONTROLLERS 3
#define CONFIG_SYS_FSL_CLUSTER_CLOCKS { 1, 1, 4, 4 }
#define CONFIG_SYS_FSL_SRDS_1
#define CONFIG_SYS_FSL_SRDS_2
#else
#error SoC not defined
#endif

67
arch/arm/include/asm/arch-fsl-lsch3/fsl_serdes.h Normal file
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@ -0,0 +1,67 @@
/*
* Copyright 2015 Freescale Semiconductor, Inc.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef __FSL_SERDES_H
#define __FSL_SERDES_H
#include <config.h>
#define SRDS_MAX_LANES 8
enum srds_prtcl {
NONE = 0,
PCIE1,
PCIE2,
PCIE3,
PCIE4,
SATA1,
SATA2,
XAUI1,
XAUI2,
XFI1,
XFI2,
XFI3,
XFI4,
XFI5,
XFI6,
XFI7,
XFI8,
SGMII1,
SGMII2,
SGMII3,
SGMII4,
SGMII5,
SGMII6,
SGMII7,
SGMII8,
SGMII9,
SGMII10,
SGMII11,
SGMII12,
SGMII13,
SGMII14,
SGMII15,
SGMII16,
QSGMII_A, /* A indicates MACs 1-4 */
QSGMII_B, /* B indicates MACs 5-8 */
QSGMII_C, /* C indicates MACs 9-12 */
QSGMII_D, /* D indicates MACs 12-16 */
SERDES_PRCTL_COUNT
};
enum srds {
FSL_SRDS_1 = 0,
FSL_SRDS_2 = 1,
};
int is_serdes_configured(enum srds_prtcl device);
void fsl_serdes_init(void);
int serdes_get_first_lane(u32 sd, enum srds_prtcl device);
enum srds_prtcl serdes_get_prtcl(int serdes, int cfg, int lane);
int is_serdes_prtcl_valid(int serdes, u32 prtcl);
#endif /* __FSL_SERDES_H */

5
arch/arm/include/asm/arch-fsl-lsch3/immap_lsch3.h
View File

@ -63,6 +63,11 @@ struct ccsr_gur {
#define FSL_CHASSIS3_RCWSR0_MEM_PLL_RAT_MASK 0x3f
#define FSL_CHASSIS3_RCWSR0_MEM2_PLL_RAT_SHIFT 18
#define FSL_CHASSIS3_RCWSR0_MEM2_PLL_RAT_MASK 0x3f
#define FSL_CHASSIS3_RCWSR28_SRDS1_PRTCL_MASK 0x00FF0000
#define FSL_CHASSIS3_RCWSR28_SRDS1_PRTCL_SHIFT 16
#define FSL_CHASSIS3_RCWSR28_SRDS2_PRTCL_MASK 0xFF000000
#define FSL_CHASSIS3_RCWSR28_SRDS2_PRTCL_SHIFT 24
u8 res_180[0x200-0x180];
u32 scratchrw[32]; /* Scratch Read/Write */
u8 res_280[0x300-0x280];

5
include/configs/ls2085a_common.h
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@ -19,6 +19,11 @@
#define CONFIG_ARM_ERRATA_828024
#define CONFIG_ARM_ERRATA_826974
#include <asm/arch-fsl-lsch3/config.h>
#if (defined(CONFIG_SYS_FSL_SRDS_1) || defined(CONFIG_SYS_FSL_SRDS_2))
#define CONFIG_SYS_HAS_SERDES
#endif
/* We need architecture specific misc initializations */
#define CONFIG_ARCH_MISC_INIT