From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from exprod5og108.obsmtp.com ([64.18.0.186]) by merlin.infradead.org with smtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1VbSwB-0004gs-SO for barebox@lists.infradead.org; Wed, 30 Oct 2013 10:23:44 +0000 From: Renaud Barbier Date: Wed, 30 Oct 2013 10:22:49 +0000 Message-Id: <1383128571-8250-4-git-send-email-renaud.barbier@ge.com> In-Reply-To: <1383128571-8250-1-git-send-email-renaud.barbier@ge.com> References: <1383128571-8250-1-git-send-email-renaud.barbier@ge.com> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "barebox" Errors-To: barebox-bounces+u.kleine-koenig=pengutronix.de@lists.infradead.org Subject: [PATCH 3/5] ppc: mpc85xx: enable DDR driver To: barebox@lists.infradead.org The use of the DDR driver as well as early I2C support is enabled for board initialising their memory through SPD EEPROM data. A SOC specific function returning the DDR bus frequency is added for the DDR driver to translate DDR timings to register values. Signed-off-by: Renaud Barbier --- arch/ppc/ddr-8xxx/Makefile | 2 ++ arch/ppc/mach-mpc85xx/Makefile | 1 + arch/ppc/mach-mpc85xx/cpu.c | 6 ++++-- arch/ppc/mach-mpc85xx/include/mach/clock.h | 1 + arch/ppc/mach-mpc85xx/speed.c | 9 +++++++++ 5 files changed, 17 insertions(+), 2 deletions(-) create mode 100644 arch/ppc/ddr-8xxx/Makefile diff --git a/arch/ppc/ddr-8xxx/Makefile b/arch/ppc/ddr-8xxx/Makefile new file mode 100644 index 0000000..54cb7ce --- /dev/null +++ b/arch/ppc/ddr-8xxx/Makefile @@ -0,0 +1,2 @@ +obj-y += main.o util.o ctrl_regs.o options.o lc_common_dimm_params.o +obj-$(CONFIG_FSL_DDR2) += ddr2_dimm_params.o ddr2_setctrl.o diff --git a/arch/ppc/mach-mpc85xx/Makefile b/arch/ppc/mach-mpc85xx/Makefile index 81d6853..b484d40 100644 --- a/arch/ppc/mach-mpc85xx/Makefile +++ b/arch/ppc/mach-mpc85xx/Makefile @@ -6,4 +6,5 @@ obj-y += speed.o obj-y +=time.o obj-$(CONFIG_MP) += mp.o obj-$(CONFIG_OFTREE) += fdt.o +obj-$(CONFIG_I2C_IMX) += fsl_i2c.o obj-$(CONFIG_DRIVER_NET_GIANFAR) += eth-devices.o diff --git a/arch/ppc/mach-mpc85xx/cpu.c b/arch/ppc/mach-mpc85xx/cpu.c index 39343ff..17a1c4c 100644 --- a/arch/ppc/mach-mpc85xx/cpu.c +++ b/arch/ppc/mach-mpc85xx/cpu.c @@ -44,8 +44,10 @@ long int initdram(int board_type) { phys_size_t dram_size = 0; - dram_size = fixed_sdram(); - + if (IS_ENABLED(CONFIG_DDR_SPD)) + dram_size = fsl_ddr_sdram(); + else + dram_size = fixed_sdram(); dram_size = e500_setup_ddr_tlbs(dram_size / 0x100000); dram_size *= 0x100000; diff --git a/arch/ppc/mach-mpc85xx/include/mach/clock.h b/arch/ppc/mach-mpc85xx/include/mach/clock.h index e20d685..0e68cf6 100644 --- a/arch/ppc/mach-mpc85xx/include/mach/clock.h +++ b/arch/ppc/mach-mpc85xx/include/mach/clock.h @@ -11,6 +11,7 @@ struct sys_info { }; unsigned long fsl_get_bus_freq(ulong dummy); +unsigned long fsl_get_ddr_freq(ulong dummy); unsigned long fsl_get_timebase_clock(void); unsigned long fsl_get_i2c_freq(void); void fsl_get_sys_info(struct sys_info *sysInfo); diff --git a/arch/ppc/mach-mpc85xx/speed.c b/arch/ppc/mach-mpc85xx/speed.c index 64c10f9..eb9d725 100644 --- a/arch/ppc/mach-mpc85xx/speed.c +++ b/arch/ppc/mach-mpc85xx/speed.c @@ -90,6 +90,15 @@ unsigned long fsl_get_bus_freq(ulong dummy) return sys_info.freqSystemBus; } +unsigned long fsl_get_ddr_freq(ulong dummy) +{ + struct sys_info sys_info; + + fsl_get_sys_info(&sys_info); + + return sys_info.freqDDRBus; +} + unsigned long fsl_get_timebase_clock(void) { struct sys_info sysinfo; -- 1.7.1 _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox