From mboxrd@z Thu Jan 1 00:00:00 1970 From: Anton Vorontsov Date: Thu, 13 Mar 2008 16:44:50 +0300 Subject: [U-Boot-Users] [PATCH 2/3] 83xx: serdes setup routines In-Reply-To: <20080312225439.GH18968@game.jcrosoft.org> References: <20080307150739.GB22072@localhost.localdomain> <20080312225439.GH18968@game.jcrosoft.org> Message-ID: <20080313134450.GA25871@localhost.localdomain> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de On Wed, Mar 12, 2008 at 11:54:39PM +0100, Jean-Christophe PLAGNIOL-VILLARD wrote: > On 18:07 Fri 07 Mar , Anton Vorontsov wrote: > > This patch adds few routines to configure serdes on 837x targets. > > > > Signed-off-by: Anton Vorontsov > > --- > > cpu/mpc83xx/Makefile | 2 +- > > cpu/mpc83xx/serdes.c | 161 ++++++++++++++++++++++++++++++++++++++++++++++++++ > > include/fsl_serdes.h | 25 ++++++++ > > 3 files changed, 187 insertions(+), 1 deletions(-) > > create mode 100644 cpu/mpc83xx/serdes.c > > create mode 100644 include/fsl_serdes.h > > > > diff --git a/cpu/mpc83xx/Makefile b/cpu/mpc83xx/Makefile > > index 94a3cb8..678be29 100644 > > --- a/cpu/mpc83xx/Makefile > > +++ b/cpu/mpc83xx/Makefile > > @@ -29,7 +29,7 @@ LIB = $(obj)lib$(CPU).a > > > > START = start.o > > COBJS = traps.o cpu.o cpu_init.o speed.o interrupts.o \ > > - spd_sdram.o ecc.o qe_io.o pci.o fdt.o > > + spd_sdram.o ecc.o qe_io.o pci.o fdt.o serdes.o > Please split it with on line for one file Not sure if just splitting COBJS in separate lines is any better. In long term we should start using $(CONFIG_ symbols. I can start doing it for serdes... > > [...] > > +#ifdef CONFIG_FSL_SERDES > Please move it to the Makefile - - - - From: Anton Vorontsov Subject: 83xx: serdes setup routines This patch adds few routines to configure serdes on 837x targets. Signed-off-by: Anton Vorontsov --- cpu/mpc83xx/Makefile | 6 +- cpu/mpc83xx/serdes.c | 156 ++++++++++++++++++++++++++++++++++++++++++++++++++ include/fsl_serdes.h | 25 ++++++++ 3 files changed, 185 insertions(+), 2 deletions(-) create mode 100644 cpu/mpc83xx/serdes.c create mode 100644 include/fsl_serdes.h diff --git a/cpu/mpc83xx/Makefile b/cpu/mpc83xx/Makefile index 94a3cb8..27e1567 100644 --- a/cpu/mpc83xx/Makefile +++ b/cpu/mpc83xx/Makefile @@ -28,8 +28,10 @@ include $(TOPDIR)/config.mk LIB = $(obj)lib$(CPU).a START = start.o -COBJS = traps.o cpu.o cpu_init.o speed.o interrupts.o \ - spd_sdram.o ecc.o qe_io.o pci.o fdt.o +COBJS-y += traps.o cpu.o cpu_init.o speed.o interrupts.o \ + spd_sdram.o ecc.o qe_io.o pci.o +COBJS-$(CONFIG_FSL_SERDES) += serdes.o +COBJS = $(COBJS-y) SRCS := $(START:.o=.S) $(SOBJS:.o=.S) $(COBJS:.o=.c) OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS)) diff --git a/cpu/mpc83xx/serdes.c b/cpu/mpc83xx/serdes.c new file mode 100644 index 0000000..1b2bdd7 --- /dev/null +++ b/cpu/mpc83xx/serdes.c @@ -0,0 +1,156 @@ +/* + * Freescale SerDes initialization routine + * + * Copyright (C) 2007 Freescale Semicondutor, Inc. All rights reserved. + * Copyright (C) 2008 MontaVista Software, Inc. All rights reserved. + * + * Author: Li Yang + * + * 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 + +/* SerDes registers */ +#define FSL_SRDSCR0_OFFS 0x0 +#define FSL_SRDSCR0_DPP_1V2 0x00008800 +#define FSL_SRDSCR1_OFFS 0x4 +#define FSL_SRDSCR1_PLLBW 0x00000040 +#define FSL_SRDSCR2_OFFS 0x8 +#define FSL_SRDSCR2_VDD_1V2 0x00800000 +#define FSL_SRDSCR2_SEIC_MASK 0x00001c1c +#define FSL_SRDSCR2_SEIC_SATA 0x00001414 +#define FSL_SRDSCR2_SEIC_PEX 0x00001010 +#define FSL_SRDSCR2_SEIC_SGMII 0x00000101 +#define FSL_SRDSCR3_OFFS 0xc +#define FSL_SRDSCR3_KFR_SATA 0x10100000 +#define FSL_SRDSCR3_KPH_SATA 0x04040000 +#define FSL_SRDSCR3_SDFM_SATA_PEX 0x01010000 +#define FSL_SRDSCR3_SDTXL_SATA 0x00000505 +#define FSL_SRDSCR4_OFFS 0x10 +#define FSL_SRDSCR4_PROT_SATA 0x00000808 +#define FSL_SRDSCR4_PROT_PEX 0x00000101 +#define FSL_SRDSCR4_PROT_SGMII 0x00000505 +#define FSL_SRDSCR4_PLANE_X2 0x01000000 +#define FSL_SRDSRSTCTL_OFFS 0x20 +#define FSL_SRDSRSTCTL_RST 0x80000000 +#define FSL_SRDSRSTCTL_SATA_RESET 0xf + +static void setup_serdes(void *regs, char proto, char rfcks, char vdd) +{ + u32 tmp; + + /* 1.0V corevdd */ + if (vdd) { + /* DPPE/DPPA = 0 */ + tmp = in_be32(regs + FSL_SRDSCR0_OFFS); + tmp &= ~FSL_SRDSCR0_DPP_1V2; + out_be32(regs + FSL_SRDSCR0_OFFS, tmp); + + /* VDD = 0 */ + tmp = in_be32(regs + FSL_SRDSCR2_OFFS); + tmp &= ~FSL_SRDSCR2_VDD_1V2; + out_be32(regs + FSL_SRDSCR2_OFFS, tmp); + } + + /* protocol specific configuration */ + switch (proto) { + case FSL_SERDES_PROTO_SATA: + /* Set and clear reset bits */ + tmp = in_be32(regs + FSL_SRDSRSTCTL_OFFS); + tmp |= FSL_SRDSRSTCTL_SATA_RESET; + out_be32(regs + FSL_SRDSRSTCTL_OFFS, tmp); + udelay(1000); + tmp &= ~FSL_SRDSRSTCTL_SATA_RESET; + out_be32(regs + FSL_SRDSRSTCTL_OFFS, tmp); + + /* Configure SRDSCR1 */ + tmp = in_be32(regs + FSL_SRDSCR1_OFFS); + tmp &= ~FSL_SRDSCR1_PLLBW; + out_be32(regs + FSL_SRDSCR1_OFFS, tmp); + + /* Configure SRDSCR2 */ + tmp = in_be32(regs + FSL_SRDSCR2_OFFS); + tmp &= ~FSL_SRDSCR2_SEIC_MASK; + tmp |= FSL_SRDSCR2_SEIC_SATA; + out_be32(regs + FSL_SRDSCR2_OFFS, tmp); + + /* Configure SRDSCR3 */ + tmp = FSL_SRDSCR3_KFR_SATA | FSL_SRDSCR3_KPH_SATA | + FSL_SRDSCR3_SDFM_SATA_PEX | + FSL_SRDSCR3_SDTXL_SATA; + out_be32(regs + FSL_SRDSCR3_OFFS, tmp); + + /* Configure SRDSCR4 */ + tmp = rfcks | FSL_SRDSCR4_PROT_SATA; + out_be32(regs + FSL_SRDSCR4_OFFS, tmp); + break; + case FSL_SERDES_PROTO_PEX: + case FSL_SERDES_PROTO_PEX_X2: + /* Configure SRDSCR1 */ + tmp = in_be32(regs + FSL_SRDSCR1_OFFS); + tmp |= FSL_SRDSCR1_PLLBW; + out_be32(regs + FSL_SRDSCR1_OFFS, tmp); + + /* Configure SRDSCR2 */ + tmp = in_be32(regs + FSL_SRDSCR2_OFFS); + tmp &= ~FSL_SRDSCR2_SEIC_MASK; + tmp |= FSL_SRDSCR2_SEIC_PEX; + out_be32(regs + FSL_SRDSCR2_OFFS, tmp); + + /* Configure SRDSCR3 */ + tmp = FSL_SRDSCR3_SDFM_SATA_PEX; + out_be32(regs + FSL_SRDSCR3_OFFS, tmp); + + /* Configure SRDSCR4 */ + tmp = rfcks | FSL_SRDSCR4_PROT_PEX; + if (proto == FSL_SERDES_PROTO_PEX_X2) + tmp |= FSL_SRDSCR4_PLANE_X2; + out_be32(regs + FSL_SRDSCR4_OFFS, tmp); + break; + case FSL_SERDES_PROTO_SGMII: + /* Configure SRDSCR1 */ + tmp = in_be32(regs + FSL_SRDSCR1_OFFS); + tmp &= ~FSL_SRDSCR1_PLLBW; + out_be32(regs + FSL_SRDSCR1_OFFS, tmp); + + /* Configure SRDSCR2 */ + tmp = in_be32(regs + FSL_SRDSCR2_OFFS); + tmp &= ~FSL_SRDSCR2_SEIC_MASK; + tmp |= FSL_SRDSCR2_SEIC_SGMII; + out_be32(regs + FSL_SRDSCR2_OFFS, tmp); + + /* Configure SRDSCR3 */ + out_be32(regs + FSL_SRDSCR3_OFFS, 0); + + /* Configure SRDSCR4 */ + tmp = rfcks | FSL_SRDSCR4_PROT_SGMII; + out_be32(regs + FSL_SRDSCR4_OFFS, tmp); + break; + default: + return; + } + + /* Do a software reset */ + tmp = in_be32(regs + FSL_SRDSRSTCTL_OFFS); + tmp |= FSL_SRDSRSTCTL_RST; + out_be32(regs + FSL_SRDSRSTCTL_OFFS, tmp); +} + +void fsl_setup_serdes(void) +{ +#ifdef CONFIG_FSL_SERDES1 + setup_serdes((void *)CONFIG_FSL_SERDES1, CONFIG_FSL_SERDES1_PROTO, + CONFIG_FSL_SERDES1_CLK, CONFIG_FSL_SERDES1_VDD_1V); +#endif +#ifdef CONFIG_FSL_SERDES2 + setup_serdes((void *)CONFIG_FSL_SERDES2, CONFIG_FSL_SERDES2_PROTO, + CONFIG_FSL_SERDES2_CLK, CONFIG_FSL_SERDES2_VDD_1V); +#endif +} diff --git a/include/fsl_serdes.h b/include/fsl_serdes.h new file mode 100644 index 0000000..4c9a766 --- /dev/null +++ b/include/fsl_serdes.h @@ -0,0 +1,25 @@ +#ifndef __FSL_SERDES_H +#define __FSL_SERDES_H + +#include + +#ifdef CONFIG_FSL_SERDES + +#define FSL_SERDES_CLK_100 0 +#define FSL_SERDES_CLK_125 1 +#define FSL_SERDES_CLK_150 3 +#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_VDD1V 1 + +extern void fsl_setup_serdes(void); + +#else + +static inline void fsl_setup_serdes(void) {} + +#endif + +#endif /* __FSL_SERDES_H */ -- 1.5.2.2