powerpc/corenet2: Add SerDes for corenet2

Create new files to handle 2nd generation Chassis as the registers are
organized differently.

 - Add SerDes protocol parsing and detection
 - Add support of 4 SerDes
 - Add CPRI protocol in fsl_serdes.h
	The Common Public Radio Interface (CPRI) is publicly available
	specification that standardizes the protocol interface between the
	radio equipment control (REC) and the radio equipment (RE) in wireless
	basestations. This allows interoperability of equipment from different
	vendors,and preserves the software investment made by wireless service
	providers.

Signed-off-by: York Sun <yorksun@freescale.com>
Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
Signed-off-by: Shengzhou Liu <Shengzhou.Liu@freescale.com>
Signed-off-by: Roy Zang <tie-fei.zang@freescale.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>

4 files changed, 231 insertions, 9 deletions

diff --git a/arch/powerpc/cpu/mpc85xx/Makefile b/arch/powerpc/cpu/mpc85xx/Makefile
index aad50f34ac..c5982dbe01 100644
--- a/arch/powerpc/cpu/mpc85xx/Makefile
+++ b/arch/powerpc/cpu/mpc85xx/Makefile
@@ -85,7 +85,8 @@ COBJS-$(CONFIG_PPC_P5040) += p5040_ids.o
 
 COBJS-$(CONFIG_QE)	+= qe_io.o
 COBJS-$(CONFIG_CPM2)	+= serial_scc.o
-COBJS-$(CONFIG_FSL_CORENET) += fsl_corenet_serdes.o
+COBJS-$(CONFIG_SYS_FSL_QORIQ_CHASSIS1) += fsl_corenet_serdes.o
+COBJS-$(CONFIG_SYS_FSL_QORIQ_CHASSIS2) += fsl_corenet2_serdes.o
 
 # SoC specific SERDES support
 COBJS-$(CONFIG_MPC8536) += mpc8536_serdes.o
diff --git a/arch/powerpc/cpu/mpc85xx/fsl_corenet2_serdes.c b/arch/powerpc/cpu/mpc85xx/fsl_corenet2_serdes.c
new file mode 100644
index 0000000000..01dcdf6bc1
--- /dev/null
+++ b/arch/powerpc/cpu/mpc85xx/fsl_corenet2_serdes.c
@@ -0,0 +1,203 @@
+/*
+ * Copyright 2012 Freescale Semiconductor, Inc.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <asm/fsl_serdes.h>
+#include <asm/immap_85xx.h>
+#include <asm/io.h>
+#include <asm/processor.h>
+#include <asm/fsl_law.h>
+#include <asm/errno.h>
+#include "fsl_corenet2_serdes.h"
+
+static u64 serdes1_prtcl_map;
+static u64 serdes2_prtcl_map;
+#ifdef CONFIG_SYS_FSL_SRDS_3
+static u64 serdes3_prtcl_map;
+#endif
+#ifdef CONFIG_SYS_FSL_SRDS_4
+static u64 serdes4_prtcl_map;
+#endif
+
+#ifdef DEBUG
+static const char *serdes_prtcl_str[] = {
+	[NONE] = "NA",
+	[PCIE1] = "PCIE1",
+	[PCIE2] = "PCIE2",
+	[PCIE3] = "PCIE3",
+	[PCIE4] = "PCIE4",
+	[SATA1] = "SATA1",
+	[SATA2] = "SATA2",
+	[SRIO1] = "SRIO1",
+	[SRIO2] = "SRIO2",
+	[SGMII_FM1_DTSEC1] = "SGMII_FM1_DTSEC1",
+	[SGMII_FM1_DTSEC2] = "SGMII_FM1_DTSEC2",
+	[SGMII_FM1_DTSEC3] = "SGMII_FM1_DTSEC3",
+	[SGMII_FM1_DTSEC4] = "SGMII_FM1_DTSEC4",
+	[SGMII_FM1_DTSEC5] = "SGMII_FM1_DTSEC5",
+	[SGMII_FM1_DTSEC6] = "SGMII_FM1_DTSEC6",
+	[SGMII_FM2_DTSEC1] = "SGMII_FM2_DTSEC1",
+	[SGMII_FM2_DTSEC2] = "SGMII_FM2_DTSEC2",
+	[SGMII_FM2_DTSEC3] = "SGMII_FM2_DTSEC3",
+	[SGMII_FM2_DTSEC4] = "SGMII_FM2_DTSEC4",
+	[XAUI_FM1] = "XAUI_FM1",
+	[XAUI_FM2] = "XAUI_FM2",
+	[AURORA] = "DEBUG",
+	[CPRI1] = "CPRI1",
+	[CPRI2] = "CPRI2",
+	[CPRI3] = "CPRI3",
+	[CPRI4] = "CPRI4",
+	[CPRI5] = "CPRI5",
+	[CPRI6] = "CPRI6",
+	[CPRI7] = "CPRI7",
+	[CPRI8] = "CPRI8",
+	[XAUI_FM1_MAC9] = "XAUI_FM1_MAC9",
+	[XAUI_FM1_MAC10] = "XAUI_FM1_MAC10",
+	[XAUI_FM2_MAC9] = "XAUI_FM2_MAC9",
+	[XAUI_FM2_MAC10] = "XAUI_FM2_MAC10",
+	[HIGIG_FM1_MAC9] = "HiGig_FM1_MAC9",
+	[HIGIG_FM1_MAC10] = "HiGig_FM1_MAC10",
+	[HIGIG_FM2_MAC9] = "HiGig_FM2_MAC9",
+	[HIGIG_FM2_MAC10] = "HiGig_FM2_MAC10",
+	[QSGMII_FM1_A] = "QSGMII_FM1_A",
+	[QSGMII_FM1_B] = "QSGMII_FM1_B",
+	[QSGMII_FM2_A] = "QSGMII_FM2_A",
+	[QSGMII_FM2_B] = "QSGMII_FM2_B",
+	[XFI_FM1_MAC9] = "XFI_FM1_MAC9",
+	[XFI_FM1_MAC10] = "XFI_FM1_MAC10",
+	[XFI_FM2_MAC9] = "XFI_FM2_MAC9",
+	[XFI_FM2_MAC10] = "XFI_FM2_MAC10",
+	[INTERLAKEN] = "INTERLAKEN",
+};
+#endif
+
+int is_serdes_configured(enum srds_prtcl device)
+{
+	u64 ret = 0;
+
+	ret |= (1ULL << device) & serdes1_prtcl_map;
+	ret |= (1ULL << device) & serdes2_prtcl_map;
+#ifdef CONFIG_SYS_FSL_SRDS_3
+	ret |= (1ULL << device) & serdes3_prtcl_map;
+#endif
+#ifdef CONFIG_SYS_FSL_SRDS_4
+	ret |= (1ULL << device) & serdes4_prtcl_map;
+#endif
+
+	return !!ret;
+}
+
+int serdes_get_first_lane(u32 sd, enum srds_prtcl device)
+{
+	const ccsr_gur_t *gur = (void __iomem *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
+	u32 cfg = in_be32(&gur->rcwsr[4]);
+	int i;
+
+	switch (sd) {
+	case FSL_SRDS_1:
+		cfg &= FSL_CORENET2_RCWSR4_SRDS1_PRTCL;
+		cfg >>= FSL_CORENET2_RCWSR4_SRDS1_PRTCL_SHIFT;
+		break;
+	case FSL_SRDS_2:
+		cfg &= FSL_CORENET2_RCWSR4_SRDS2_PRTCL;
+		cfg >>= FSL_CORENET2_RCWSR4_SRDS2_PRTCL_SHIFT;
+		break;
+#ifdef CONFIG_SYS_FSL_SRDS_3
+	case FSL_SRDS_3:
+		cfg &= FSL_CORENET2_RCWSR4_SRDS3_PRTCL;
+		cfg >>= FSL_CORENET2_RCWSR4_SRDS3_PRTCL_SHIFT;
+		break;
+#endif
+#ifdef CONFIG_SYS_FSL_SRDS_4
+	case FSL_SRDS_4:
+		cfg &= FSL_CORENET2_RCWSR4_SRDS4_PRTCL;
+		cfg >>= FSL_CORENET2_RCWSR4_SRDS4_PRTCL_SHIFT;
+		break;
+#endif
+	default:
+		printf("invalid SerDes%d\n", sd);
+		break;
+	}
+	/* Is serdes enabled at all? */
+	if (unlikely(cfg == 0))
+		return -ENODEV;
+
+	for (i = 0; i < SRDS_MAX_LANES; i++) {
+		if (serdes_get_prtcl(sd, cfg, i) == device)
+			return i;
+	}
+
+	return -ENODEV;
+}
+
+u64 serdes_init(u32 sd, u32 sd_addr, u32 sd_prctl_mask, u32 sd_prctl_shift)
+{
+	ccsr_gur_t *gur = (void __iomem *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
+	u64 serdes_prtcl_map = 0;
+	u32 cfg;
+	int lane;
+
+	cfg = in_be32(&gur->rcwsr[4]) & sd_prctl_mask;
+	/* Is serdes enabled at all? */
+	if (!cfg) {
+		printf("SERDES%d is not enabled\n", sd + 1);
+		return 0;
+	}
+
+	cfg >>= sd_prctl_shift;
+	printf("Using SERDES%d Protocol: 0x%x\n", sd + 1, 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);
+		serdes_prtcl_map |= (1ULL << lane_prtcl);
+	}
+
+	return serdes_prtcl_map;
+}
+
+void fsl_serdes_init(void)
+{
+
+	serdes1_prtcl_map = serdes_init(FSL_SRDS_1,
+		CONFIG_SYS_FSL_CORENET_SERDES_ADDR,
+		FSL_CORENET2_RCWSR4_SRDS1_PRTCL,
+		FSL_CORENET2_RCWSR4_SRDS1_PRTCL_SHIFT);
+	serdes2_prtcl_map = serdes_init(FSL_SRDS_2,
+		CONFIG_SYS_FSL_CORENET_SERDES_ADDR + FSL_SRDS_2 * 0x1000,
+		FSL_CORENET2_RCWSR4_SRDS2_PRTCL,
+		FSL_CORENET2_RCWSR4_SRDS2_PRTCL_SHIFT);
+#ifdef CONFIG_SYS_FSL_SRDS_3
+	serdes3_prtcl_map = serdes_init(FSL_SRDS_3,
+		CONFIG_SYS_FSL_CORENET_SERDES_ADDR + FSL_SRDS_3 * 0x1000,
+		FSL_CORENET2_RCWSR4_SRDS3_PRTCL,
+		FSL_CORENET2_RCWSR4_SRDS3_PRTCL_SHIFT);
+#endif
+#ifdef CONFIG_SYS_FSL_SRDS_4
+	serdes4_prtcl_map = serdes_init(FSL_SRDS_4,
+		CONFIG_SYS_FSL_CORENET_SERDES_ADDR + FSL_SRDS_4 * 0x1000,
+		FSL_CORENET2_RCWSR4_SRDS4_PRTCL,
+		FSL_CORENET2_RCWSR4_SRDS4_PRTCL_SHIFT);
+#endif
+
+}
diff --git a/arch/powerpc/cpu/mpc85xx/fsl_corenet2_serdes.h b/arch/powerpc/cpu/mpc85xx/fsl_corenet2_serdes.h
new file mode 100644
index 0000000000..2258f41888
--- /dev/null
+++ b/arch/powerpc/cpu/mpc85xx/fsl_corenet2_serdes.h
@@ -0,0 +1,26 @@
+/*
+ * Copyright 2012 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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef __FSL_CORENET2_SERDES_H
+#define __FSL_CORENET2_SERDES_H
+
+int is_serdes_prtcl_valid(int serdes, u32 prtcl);
+int serdes_lane_enabled(int lane);
+enum srds_prtcl serdes_get_prtcl(int serdes, int cfg, int lane);
+#endif /* __FSL_CORENET2_SERDES_H */
diff --git a/arch/powerpc/cpu/mpc85xx/fsl_corenet_serdes.h b/arch/powerpc/cpu/mpc85xx/fsl_corenet_serdes.h
index c82060dd33..3c551e9b4c 100644
--- a/arch/powerpc/cpu/mpc85xx/fsl_corenet_serdes.h
+++ b/arch/powerpc/cpu/mpc85xx/fsl_corenet_serdes.h
@@ -22,14 +22,6 @@
 #ifndef __FSL_CORENET_SERDES_H
 #define __FSL_CORENET_SERDES_H
 
-/*
- * Note: For P5040, the fourth SerDes bank is on SerDes2, but U-boot currently
- * only supports one SerDes controller.  For now, pretend that we have three
- * banks and 18 lanes on the P5040.
- */
-#define SRDS_MAX_LANES		18
-#define SRDS_MAX_BANK		3
-
 enum srds_bank {
 	FSL_SRDS_BANK_1  = 0,
 	FSL_SRDS_BANK_2  = 1,