From c59e1b4d078d5301aaeeec13b3e292d5bed05daf Mon Sep 17 00:00:00 2001 From: Timur Tabi Date: Mon, 14 Jun 2010 15:28:24 -0500 Subject: powerpc: add support for the Freescale P1022DS reference board Specifics: 1) 36-bit only 2) Booting from NOR flash only 3) Environment stored in NOR flash only 4) No SPI support 5) No DIU support Signed-off-by: Timur Tabi Signed-off-by: Kumar Gala --- arch/powerpc/cpu/mpc85xx/Makefile | 1 + arch/powerpc/cpu/mpc85xx/p1022_serdes.c | 166 ++++++++++++++++++++++++++++++++ 2 files changed, 167 insertions(+) create mode 100644 arch/powerpc/cpu/mpc85xx/p1022_serdes.c (limited to 'arch/powerpc/cpu/mpc85xx') diff --git a/arch/powerpc/cpu/mpc85xx/Makefile b/arch/powerpc/cpu/mpc85xx/Makefile index f064fee26..a481326d2 100644 --- a/arch/powerpc/cpu/mpc85xx/Makefile +++ b/arch/powerpc/cpu/mpc85xx/Makefile @@ -63,6 +63,7 @@ COBJS-$(CONFIG_CPM2) += ether_fcc.o COBJS-$(CONFIG_OF_LIBFDT) += fdt.o COBJS-$(CONFIG_MP) += mp.o COBJS-$(CONFIG_MPC8536) += mpc8536_serdes.o +COBJS-$(CONFIG_P1022) += p1022_serdes.o COBJS-$(CONFIG_PCI) += pci.o COBJS-$(CONFIG_QE) += qe_io.o COBJS-$(CONFIG_CPM2) += serial_scc.o diff --git a/arch/powerpc/cpu/mpc85xx/p1022_serdes.c b/arch/powerpc/cpu/mpc85xx/p1022_serdes.c new file mode 100644 index 000000000..52e109b1c --- /dev/null +++ b/arch/powerpc/cpu/mpc85xx/p1022_serdes.c @@ -0,0 +1,166 @@ +/* + * Copyright 2010 Freescale Semiconductor, Inc. + * Author: Timur Tabi + * + * 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 +#include +#include +#include +#include + +#define SRDS1_MAX_LANES 4 +#define SRDS2_MAX_LANES 2 + +static const u8 serdes1_cfg_tbl[][SRDS1_MAX_LANES] = { + [0x00] = {NONE, NONE, NONE, NONE}, + [0x01] = {NONE, NONE, NONE, NONE}, + [0x02] = {NONE, NONE, NONE, NONE}, + [0x03] = {NONE, NONE, NONE, NONE}, + [0x04] = {NONE, NONE, NONE, NONE}, + [0x06] = {PCIE1, PCIE3, SGMII_TSEC1, PCIE2}, + [0x07] = {PCIE1, PCIE3, SGMII_TSEC1, PCIE2}, + [0x09] = {PCIE1, NONE, NONE, NONE}, + [0x0a] = {PCIE1, PCIE3, SGMII_TSEC1, SGMII_TSEC2}, + [0x0b] = {PCIE1, PCIE3, SGMII_TSEC1, SGMII_TSEC2}, + [0x0d] = {PCIE1, PCIE1, SGMII_TSEC1, SGMII_TSEC2}, + [0x0e] = {PCIE1, PCIE1, SGMII_TSEC1, SGMII_TSEC2}, + [0x0f] = {PCIE1, PCIE1, SGMII_TSEC1, SGMII_TSEC2}, + [0x15] = {PCIE1, PCIE3, PCIE2, PCIE2}, + [0x16] = {PCIE1, PCIE3, PCIE2, PCIE2}, + [0x17] = {PCIE1, PCIE3, PCIE2, PCIE2}, + [0x18] = {PCIE1, PCIE1, PCIE2, PCIE2}, + [0x19] = {PCIE1, PCIE1, PCIE2, PCIE2}, + [0x1a] = {PCIE1, PCIE1, PCIE2, PCIE2}, + [0x1b] = {PCIE1, PCIE1, PCIE2, PCIE2}, + [0x1c] = {PCIE1, PCIE1, PCIE1, PCIE1}, + [0x1d] = {PCIE1, PCIE1, PCIE2, PCIE2}, + [0x1e] = {PCIE1, PCIE1, PCIE2, PCIE2}, + [0x1f] = {PCIE1, PCIE1, PCIE2, PCIE2}, +}; + +static const u8 serdes2_cfg_tbl[][SRDS2_MAX_LANES] = { + [0x00] = {PCIE3, PCIE3}, + [0x01] = {PCIE2, PCIE3}, + [0x02] = {SATA1, SATA2}, + [0x03] = {SGMII_TSEC1, SGMII_TSEC2}, + [0x04] = {NONE, NONE}, + [0x06] = {SATA1, SATA2}, + [0x07] = {NONE, NONE}, + [0x09] = {PCIE3, PCIE2}, + [0x0a] = {SATA1, SATA2}, + [0x0b] = {NONE, NONE}, + [0x0d] = {PCIE3, PCIE2}, + [0x0e] = {SATA1, SATA2}, + [0x0f] = {NONE, NONE}, + [0x15] = {SGMII_TSEC1, SGMII_TSEC2}, + [0x16] = {SATA1, SATA2}, + [0x17] = {NONE, NONE}, + [0x18] = {PCIE3, PCIE3}, + [0x19] = {SGMII_TSEC1, SGMII_TSEC2}, + [0x1a] = {SATA1, SATA2}, + [0x1b] = {NONE, NONE}, + [0x1c] = {PCIE3, PCIE3}, + [0x1d] = {SGMII_TSEC1, SGMII_TSEC2}, + [0x1e] = {SATA1, SATA2}, + [0x1f] = {NONE, NONE}, +}; + +/* + * A list of PCI and SATA slots + */ +enum slot_id { + SLOT_PCIE1 = 1, + SLOT_PCIE2, + SLOT_PCIE3, + SLOT_PCIE4, + SLOT_PCIE5, + SLOT_SATA1, + SLOT_SATA2 +}; + +/* + * This array maps the slot identifiers to their names on the P1022DS board. + */ +static const char *slot_names[] = { + [SLOT_PCIE1] = "Slot 1", + [SLOT_PCIE2] = "Slot 2", + [SLOT_PCIE3] = "Slot 3", + [SLOT_PCIE4] = "Slot 4", + [SLOT_PCIE5] = "Mini-PCIe", + [SLOT_SATA1] = "SATA 1", + [SLOT_SATA2] = "SATA 2", +}; + +/* + * This array maps a given SERDES configuration and SERDES device to the PCI or + * SATA slot that it connects to. This mapping is hard-coded in the FPGA. + */ +static u8 serdes_dev_slot[][SATA2 + 1] = { + [0x01] = { [PCIE3] = SLOT_PCIE4, [PCIE2] = SLOT_PCIE5 }, + [0x02] = { [SATA1] = SLOT_SATA1, [SATA2] = SLOT_SATA2 }, + [0x09] = { [PCIE1] = SLOT_PCIE1, [PCIE3] = SLOT_PCIE4, + [PCIE2] = SLOT_PCIE5 }, + [0x16] = { [PCIE1] = SLOT_PCIE1, [PCIE3] = SLOT_PCIE2, + [PCIE2] = SLOT_PCIE3, + [SATA1] = SLOT_SATA1, [SATA2] = SLOT_SATA2 }, + [0x17] = { [PCIE1] = SLOT_PCIE1, [PCIE3] = SLOT_PCIE2, + [PCIE2] = SLOT_PCIE3 }, + [0x1a] = { [PCIE1] = SLOT_PCIE1, [PCIE2] = SLOT_PCIE3, + [PCIE2] = SLOT_PCIE3, + [SATA1] = SLOT_SATA1, [SATA2] = SLOT_SATA2 }, + [0x1c] = { [PCIE1] = SLOT_PCIE1, + [SATA1] = SLOT_SATA1, [SATA2] = SLOT_SATA2 }, + [0x1e] = { [PCIE1] = SLOT_PCIE1, [PCIE3] = SLOT_PCIE3 }, + [0x1f] = { [PCIE1] = SLOT_PCIE1 }, +}; + +int is_serdes_configured(enum srds_prtcl device) +{ + 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; + unsigned int i; + + debug("%s: dev = %d\n", __FUNCTION__, device); + debug("PORDEVSR[IO_SEL] = 0x%x\n", srds_cfg); + + if (srds_cfg > ARRAY_SIZE(serdes1_cfg_tbl)) { + printf("Invalid PORDEVSR[IO_SEL] = %d\n", srds_cfg); + return 0; + } + + for (i = 0; i < SRDS1_MAX_LANES; i++) { + if (serdes1_cfg_tbl[srds_cfg][i] == device) + return 1; + if (serdes2_cfg_tbl[srds_cfg][i] == device) + return 1; + } + + return 0; +} + +/* + * Returns the name of the slot to which the PCIe or SATA controller is + * connected + */ +const char *serdes_slot_name(enum srds_prtcl device) +{ + ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR; + u32 pordevsr = in_be32(&gur->pordevsr); + unsigned int srds_cfg = (pordevsr & MPC85xx_PORDEVSR_IO_SEL) >> + MPC85xx_PORDEVSR_IO_SEL_SHIFT; + enum slot_id slot = serdes_dev_slot[srds_cfg][device]; + const char *name = slot_names[slot]; + + if (name) + return name; + else + return "Nothing"; +} -- cgit v1.2.3