From 6ab4011b796e0af130ca160ea3c674d462f3bec4 Mon Sep 17 00:00:00 2001 From: Kumar Gala Date: Tue, 20 Apr 2010 10:20:33 -0500 Subject: 85xx: Add is_serdes_configured() support to MPC8536 SERDES 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. Signed-off-by: Kumar Gala --- arch/powerpc/cpu/mpc85xx/mpc8536_serdes.c | 79 +++++++++++++++++++++++++++++-- arch/powerpc/include/asm/fsl_serdes.h | 53 ++++++++++++++++----- 2 files changed, 114 insertions(+), 18 deletions(-) (limited to 'arch') diff --git a/arch/powerpc/cpu/mpc85xx/mpc8536_serdes.c b/arch/powerpc/cpu/mpc85xx/mpc8536_serdes.c index cb6a6f00c9..7e72f5fb7c 100644 --- a/arch/powerpc/cpu/mpc85xx/mpc8536_serdes.c +++ b/arch/powerpc/cpu/mpc85xx/mpc8536_serdes.c @@ -1,17 +1,31 @@ /* - * Copyright (C) 2008 Freescale Semicondutor, Inc. + * Copyright 2008,2010 Freescale Semiconductor, Inc. * Dave Liu * - * 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. + * 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 #include #include #include +#include /* PORDEVSR register */ #define GUTS_PORDEVSR_OFFS 0xc @@ -52,6 +66,61 @@ #define FSL_SRDSCR3_LANEE_SGMII 0x00000000 #define FSL_SRDSCR3_LANEE_SATA 0x00150005 + +#define SRDS1_MAX_LANES 8 +#define SRDS2_MAX_LANES 2 + +static u8 serdes1_cfg_tbl[][SRDS1_MAX_LANES] = { + [0x2] = {PCIE1, PCIE1, PCIE1, PCIE1, NONE, NONE, NONE, NONE}, + [0x3] = {PCIE1, PCIE1, PCIE1, PCIE1, PCIE1, PCIE1, PCIE1, PCIE1}, + [0x5] = {PCIE1, PCIE1, PCIE1, PCIE1, PCIE2, PCIE2, PCIE2, PCIE2}, + [0x7] = {PCIE1, PCIE1, PCIE1, PCIE1, PCIE2, PCIE2, PCIE3, PCIE3}, +}; + +static u8 serdes2_cfg_tbl[][SRDS2_MAX_LANES] = { + [0x1] = {SATA1, SATA2}, + [0x3] = {SATA1, NONE}, + [0x4] = {SGMII_TSEC1, SGMII_TSEC3}, + [0x6] = {SGMII_TSEC1, NONE}, +}; + +int is_serdes_configured(enum srds_prtcl device) +{ + int i; + ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR); + u32 pordevsr = in_be32(&gur->pordevsr); + u32 srds1_cfg = (pordevsr & MPC85xx_PORDEVSR_IO_SEL) >> + MPC85xx_PORDEVSR_IO_SEL_SHIFT; + + u32 srds2_cfg = (pordevsr & MPC85xx_PORDEVSR_SRDS2_IO_SEL) >> + GUTS_PORDEVSR_SERDES2_IO_SEL_SHIFT; + + debug("%s: dev = %d\n", __FUNCTION__, device); + debug("PORDEVSR[IO_SEL] = %x\n", srds1_cfg); + debug("PORDEVSR[SRDS2_IO_SEL] = %x\n", srds2_cfg); + + if (srds1_cfg > ARRAY_SIZE(serdes1_cfg_tbl)) { + printf("Invalid PORDEVSR[IO_SEL] = %d\n", srds1_cfg); + return 0; + } + + if (srds2_cfg > ARRAY_SIZE(serdes2_cfg_tbl)) { + printf("Invalid PORDEVSR[SRDS2_IO_SEL] = %d\n", srds2_cfg); + return 0; + } + + for (i = 0; i < SRDS1_MAX_LANES; i++) { + if (serdes1_cfg_tbl[srds1_cfg][i] == device) + return 1; + } + for (i = 0; i < SRDS2_MAX_LANES; i++) { + if (serdes2_cfg_tbl[srds2_cfg][i] == device) + return 1; + } + + return 0; +} + void fsl_serdes_init(void) { void *guts = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR); diff --git a/arch/powerpc/include/asm/fsl_serdes.h b/arch/powerpc/include/asm/fsl_serdes.h index 6da4b6ff94..d4839f4673 100644 --- a/arch/powerpc/include/asm/fsl_serdes.h +++ b/arch/powerpc/include/asm/fsl_serdes.h @@ -1,21 +1,48 @@ +/* + * Copyright 2010 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_SERDES_H #define __FSL_SERDES_H #include -#define FSL_SERDES_CLK_100 (0 << 28) -#define FSL_SERDES_CLK_125 (1 << 28) -#define FSL_SERDES_CLK_150 (3 << 28) -#define FSL_SERDES_PROTO_SATA 0 -#define FSL_SERDES_PROTO_PEX 1 -#define FSL_SERDES_PROTO_PEX_X2 2 -#define FSL_SERDES_PROTO_SGMII 3 -#define FSL_SERDES_VDD_1V 1 +enum srds_prtcl { + NONE = 0, + PCIE1, + PCIE2, + PCIE3, + PCIE4, + SATA1, + SATA2, + SRIO1, + SRIO2, + SGMII_FM1, + SGMII_FM2, + SGMII_TSEC1, + SGMII_TSEC2, + SGMII_TSEC3, + SGMII_TSEC4, + XAUI_FM1, + XAUI_FM2, + AURORA, +}; -#ifdef CONFIG_FSL_SERDES -extern void fsl_setup_serdes(u32 offset, char proto, u32 rfcks, char vdd); -#else -static void fsl_setup_serdes(u32 offset, char proto, u32 rfcks, char vdd) {} -#endif /* CONFIG_FSL_SERDES */ +int is_serdes_configured(enum srds_prtcl device); #endif /* __FSL_SERDES_H */ -- cgit From 54648985e2a64e29784e3ed37cd45b637305cd65 Mon Sep 17 00:00:00 2001 From: Kumar Gala Date: Tue, 20 Apr 2010 10:21:12 -0500 Subject: 85xx/mpc8536ds: Use is_serdes_configured() to determine of PCIe enabled The new is_serdes_configured covers a broader range of devices than the PCI specific code. Use it instead as we convert away from the is_fsl_pci_cfg() code. Additionally move to setting LAWs for PCI based on if its configured. Also updated PCI FDT fixup code to remove PCI controllers from dtb if they are configured. Signed-off-by: Kumar Gala --- arch/powerpc/cpu/mpc8xxx/pci_cfg.c | 12 ------------ 1 file changed, 12 deletions(-) (limited to 'arch') diff --git a/arch/powerpc/cpu/mpc8xxx/pci_cfg.c b/arch/powerpc/cpu/mpc8xxx/pci_cfg.c index 85995cac95..186936f23e 100644 --- a/arch/powerpc/cpu/mpc8xxx/pci_cfg.c +++ b/arch/powerpc/cpu/mpc8xxx/pci_cfg.c @@ -56,18 +56,6 @@ static struct pci_info pci_config_info[] = #elif defined(CONFIG_MPC8536) static struct pci_info pci_config_info[] = { - [LAW_TRGT_IF_PCI] = { - .cfg = 0, - }, - [LAW_TRGT_IF_PCIE_1] = { - .cfg = (1 << 2) | (1 << 3) | (1 << 5) | (1 << 7), - }, - [LAW_TRGT_IF_PCIE_2] = { - .cfg = (1 << 5) | (1 << 7), - }, - [LAW_TRGT_IF_PCIE_3] = { - .cfg = (1 << 7), - }, }; #elif defined(CONFIG_MPC8544) static struct pci_info pci_config_info[] = -- cgit From f54fe87acedbbad7d29ad18cab31d2b323717514 Mon Sep 17 00:00:00 2001 From: Kumar Gala Date: Tue, 20 Apr 2010 10:21:25 -0500 Subject: 85xx/fsl-sata: Use is_serdes_configured() to determine if SATA is enabled On the MPC85xx platform if we have SATA its connected on SERDES. Determing if SATA is enabled via sata_initialize should not be board specific and thus we move it out of the MPC8536DS board code. Additionally, now that we have is_serdes_configured() we can determine if the given SATA port is enabled and error out if its not in the driver. Signed-off-by: Kumar Gala --- arch/powerpc/cpu/mpc85xx/cpu_init.c | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/powerpc/cpu/mpc85xx/cpu_init.c b/arch/powerpc/cpu/mpc85xx/cpu_init.c index e578b296df..99431dc1a7 100644 --- a/arch/powerpc/cpu/mpc85xx/cpu_init.c +++ b/arch/powerpc/cpu/mpc85xx/cpu_init.c @@ -1,5 +1,5 @@ /* - * Copyright 2007-2009 Freescale Semiconductor, Inc. + * Copyright 2007-2010 Freescale Semiconductor, Inc. * * (C) Copyright 2003 Motorola Inc. * Modified by Xianghua Xiao, X.Xiao@motorola.com @@ -30,9 +30,11 @@ #include #include #include +#include #include #include #include +#include #include "mp.h" DECLARE_GLOBAL_DATA_PTR; @@ -418,3 +420,13 @@ void arch_preboot_os(void) setup_ivors(); } + +#if defined(CONFIG_CMD_SATA) && defined(CONFIG_FSL_SATA) +int sata_initialize(void) +{ + if (is_serdes_configured(SATA1) || is_serdes_configured(SATA2)) + return __sata_initialize(); + + return 1; +} +#endif -- cgit From bcb6c2bb84705bfd73eed5c9a31e9ff24833ee8c Mon Sep 17 00:00:00 2001 From: York Sun Date: Fri, 7 May 2010 09:12:01 -0500 Subject: Enabled support for Rev 1.3 SPD for DDR2 DIMMs SPD has minor change from Rev 1.2 to 1.3. This patch enables Rev 1.3. The difference has ben examined and the code is compatible. Speed bins is not verified on hardware for CL7 at this moment. This patch also enables SPD Rev 1.x where x is up to "F". According to SPD spec, the lower nibble is optionally used to determine which additinal bytes or attribute bits have been defined. Software can safely use defaults. However, the upper nibble should always be checked. Signed-off-by: York Sun Signed-off-by: Kumar Gala --- arch/powerpc/cpu/mpc8xxx/ddr/ddr2_dimm_params.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'arch') diff --git a/arch/powerpc/cpu/mpc8xxx/ddr/ddr2_dimm_params.c b/arch/powerpc/cpu/mpc8xxx/ddr/ddr2_dimm_params.c index d9d0fa70ee..dcb37cea1f 100644 --- a/arch/powerpc/cpu/mpc8xxx/ddr/ddr2_dimm_params.c +++ b/arch/powerpc/cpu/mpc8xxx/ddr/ddr2_dimm_params.c @@ -175,8 +175,8 @@ determine_refresh_rate_ps(const unsigned int spd_refresh) * ordinal 2, ddr2_speed_bins[1] contains tCK for CL=3 * Not certain if any good value exists for CL=2 */ - /* CL2 CL3 CL4 CL5 CL6 */ -unsigned short ddr2_speed_bins[] = { 0, 5000, 3750, 3000, 2500 }; + /* CL2 CL3 CL4 CL5 CL6 CL7*/ +unsigned short ddr2_speed_bins[] = { 0, 5000, 3750, 3000, 2500, 1875 }; unsigned int compute_derated_DDR2_CAS_latency(unsigned int mclk_ps) -- cgit