summaryrefslogtreecommitdiff
path: root/arch/powerpc/cpu/mpc85xx
diff options
context:
space:
mode:
authorPrabhakar Kushwaha <prabhakar@freescale.com>2011-01-20 16:34:41 +0530
committerKumar Gala <galak@kernel.crashing.org>2011-04-04 09:24:40 -0500
commit28747f9bb1623d8333c419ae679b914bcabd4836 (patch)
treed8f134ee26f489f436b25f9d54f184f987be590e /arch/powerpc/cpu/mpc85xx
parent67a490d60d70f2b01d55976440ba30154af96965 (diff)
downloadu-boot-imx-28747f9bb1623d8333c419ae679b914bcabd4836.zip
u-boot-imx-28747f9bb1623d8333c419ae679b914bcabd4836.tar.gz
u-boot-imx-28747f9bb1623d8333c419ae679b914bcabd4836.tar.bz2
powerpc/85xx: Add SERDES support for P1010/P1014
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>
Diffstat (limited to 'arch/powerpc/cpu/mpc85xx')
-rw-r--r--arch/powerpc/cpu/mpc85xx/Makefile2
-rw-r--r--arch/powerpc/cpu/mpc85xx/p1010_serdes.c75
2 files changed, 77 insertions, 0 deletions
diff --git a/arch/powerpc/cpu/mpc85xx/Makefile b/arch/powerpc/cpu/mpc85xx/Makefile
index cbb0fc6..628e1cf 100644
--- a/arch/powerpc/cpu/mpc85xx/Makefile
+++ b/arch/powerpc/cpu/mpc85xx/Makefile
@@ -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
diff --git a/arch/powerpc/cpu/mpc85xx/p1010_serdes.c b/arch/powerpc/cpu/mpc85xx/p1010_serdes.c
new file mode 100644
index 0000000..e8a0387
--- /dev/null
+++ b/arch/powerpc/cpu/mpc85xx/p1010_serdes.c
@@ -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);
+ }
+}