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* tegra: add enterrcm commandStephen Warren2012-07-09-0/+66
| | | | | | | | | | | | | | | | | Tegra's boot ROM supports a mode whereby code may be downloaded and flash programmed over a USB connection. On dev boards, this is typically entered by holding down a "force recovery" button and resetting the CPU. However, not all boards have such a button (one example is the Compulab Trimslice), so a method to enter RCM from software is useful. This change implements the command "enterrcm" to do this, and enables it for all Tegra boards by default. Even on boards other than Trimslice, controlling this over a UART may be useful, e.g. to allow simple remote control without the need for mechanical button actuators, or hooking up relays/... to the button. Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Tom Warren <twarren@nvidia.com>
* tegra: usb: fix wrong error checkLucas Stach2012-07-09-1/+1
| | | | | | | | | | | | loop_count runs down from 10000, so the correct condition to error out is ==0. Signed-off-by: Lucas Stach <dev@lynxeye.de> Acked-by: Stephen Warren <swarren@wwwdotorg.org> CC: Stephen Warren <swarren@wwwdotorg.org> CC: Tom Warren <twarren.nvidia@gmail.com> Tested-by: Stephen Warren <swarren@wwwdotorg.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
* tegra: add ULPI on USB2 funcmux entryLucas Stach2012-07-09-1/+15
| | | | | | | | | | | This is needed as a prerequisite for Tegra USB ULPI support within U-Boot. Signed-off-by: Lucas Stach <dev@lynxeye.de> Acked-by: Stephen Warren <swarren@wwwdotorg.org> CC: Stephen Warren <swarren@wwwdotorg.org> CC: Tom Warren <twarren@nvidia.com> Signed-off-by: Tom Warren <twarren@nvidia.com>
* Revert "arm: bugfix: save_boot_params_default accesses uninitalized stack ↵Wolfgang Denk2012-07-09-7/+1
| | | | | | | | | | | when -O0" This reverts commit fa042186b932e9b9ee9a2fd8a04a3acf7c70d224. It causes build warnings like this: cpu.c:48:1: warning: -fstack-usage not supported for this target [enabled by default] Signed-off-by: Wolfgang Denk <wd@denx.de>
* ARM: cache: Move the cp15 CR register read before flushing the cache.SRICHARAN R2012-07-07-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The following is the cleanup sequence in arch/arm/cpu/armv7/cpu.c int cleanup_before_linux(void) { ... ... dcache_disable(); v7_outer_cache_disable(); invalidate_dcache_all(); } 1) invalidate_dcache_all call expects that all the caches has been flushed, invalidated and there are no dirty entries prior to its execution. In the above sequence dcache_disable() flushes, invalidates the caches and turns off the mmu. But after it cleanups the cache and before the mmu is disabled there is a cp_delay() function which has STR instruction. On certain cores like the cortex-a15, cache hit and a write can happen to a cache line even when the dcache is disabled. So the above mentioned STR instruction creates a dirty entry after cleaning. The mmu gets disabled after this. 2) invalidate_dcache_all invalidates the cache lines. Again on cores like cortex-a15, invalidate instruction flushes the dirty line as well. So some times the dirty line from sequence 1 can corrupt the memory resulting in a crash. Fixing this by moving the get_cr() and cp_delay() calls before cleaning up the cache, thus avoiding the dirty entry. Signed-off-by: R Sricharan <r.sricharan@ti.com>
* ARM: introduce arch_early_init_r()Fabio Estevam2012-07-07-0/+5
| | | | | | | Introduce arch_early_init_r() function, which can be useful for doing early initialization after relocation has happened. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
* ARM: mx28: Remove CONFIG_ARCH_CPU_INITFabio Estevam2012-07-07-2/+0
| | | | | | | | | No need to define CONFIG_ARCH_CPU_INIT. All mx28 based boards should use arch_cpu_init(). Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Acked-by: Marek Vasut <marex@denx.de>
* No need to define CONFIG_ARCH_CPU_INIT.Fabio Estevam2012-07-07-2/+0
| | | | | | | All mx6 based boards should use arch_cpu_init(). Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Acked-by: Marek Vasut <marex@denx.de>
* SPL: ARM: spear: Add SPL support for SPEAr600 platformStefan Roese2012-07-07-27/+1740
| | | | | | | | | | | | This patch adds SPL support for SPEAr600. Currently only SNOR (Serial NOR) flash support is included. Other boot devices (NAND, MMC, USB ...) may be added with later patches. Tested on the STM SPEAr600 evaluation and x600 SPEAr600 boards. Signed-off-by: Stefan Roese <sr@denx.de> Cc: Amit Virdi <amit.virdi@st.com> Cc: Vipin Kumar <vipin.kumar@st.com>
* arm: Don't use printf() in SPL buildsSimon Glass2012-07-07-1/+2
| | | | | | | | | | | | | | raise() likes to call printf() if it is available, but in SPL builds it either is not available, or adds a large chunk to the resulting image size. So don't call it even if it is available. This change reduces SPL size from 10KB to 6.3KB on hawkboard, for example, using generic relocation. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Stefan Roese <sr@denx.de>
* GPIO: Add SPEAr GPIO driverStefan Roese2012-07-07-0/+40
| | | | | | Tested on x600 (SPEAr600). Signed-off-by: Stefan Roese <sr@denx.de>
* cleanup/SPEAr: Remove unnecessary parenthesisAmit Virdi2012-07-07-2/+2
| | | | | | | | | In SPEAr configuration files, unnecessary paranthesis are used in some \#defines. Remove them as they serve no purpose Signed-off-by: Amit Virdi <amit.virdi@st.com> Acked-by: Stefan Roese <sr@denx.de> Signed-off-by: Stefan Roese <sr@denx.de>
* SPEAr: Correct SoC ID offset in misc configuration spaceShiraz Hashim2012-07-07-1/+1
| | | | | | | | | | SoC Core ID offset is 0x30 in miscellaneous configuration address space. It was wrongly mentioned as periph2 clk enable. Signed-off-by: Shiraz Hashim <shiraz.hashim@st.com> Signed-off-by: Amit Virdi <amit.virdi@st.com> Acked-by: Stefan Roese <sr@denx.de> Signed-off-by: Stefan Roese <sr@denx.de>
* SPEAr: explicitly select clk src for UARTShiraz Hashim2012-07-07-1/+8
| | | | | | | | | | UART in u-boot intends to run on 48MHz clock supplied by USB PLL. Explicitly select the intended clock source. Signed-off-by: Shiraz Hashim <shiraz.hashim@st.com> Signed-off-by: Amit Virdi <amit.virdi@st.com> Acked-by: Stefan Roese <sr@denx.de> Signed-off-by: Stefan Roese <sr@denx.de>
* SPEAr: Add basic arch related support for SPEAr SoCsVipin KUMAR2012-07-07-1/+91
| | | | | | | | | | | Earlier, architecture specific init code was mixed with board initialization code in board/spear/... This patch updates architecture support for SPEAr in latest u-boot and prints the SoC information. Signed-off-by: Vipin Kumar <vipin.kumar@st.com> Signed-off-by: Amit Virdi <amit.virdi@st.com> Acked-by: Stefan Roese <sr@denx.de> Signed-off-by: Stefan Roese <sr@denx.de>
* SPEAr: Add macb driver support for spear310 and spear320Vipin KUMAR2012-07-07-0/+34
| | | | | | | | | | | SPEAr310 and SPEAr320 SoCs have an extra ethernet controller. The driver for this device is already supported by u-boot, so configuring board configuration file and defining base addresses etc to make use of the common driver Signed-off-by: Vipin Kumar <vipin.kumar@st.com> Signed-off-by: Amit Virdi <amit.virdi@st.com> Signed-off-by: Stefan Roese <sr@denx.de>
* SPEAr: Configure network support for spear SoCsVipin KUMAR2012-07-07-0/+1
| | | | | | Signed-off-by: Vipin Kumar <vipin.kumar@st.com> Signed-off-by: Amit Virdi <amit.virdi@st.com> Signed-off-by: Stefan Roese <sr@denx.de>
* SPEAr: Eliminate dependency on Xloader tableAmit Virdi2012-07-07-74/+0
| | | | | | | | | | Xloader table was used primarily to inform u-boot about the DDR size. However, now the ddr size is calculated at runtime which eliminates any need for the Xloader table. So removing this unnecessary code. Signed-off-by: Amit Virdi <amit.virdi@st.com> Acked-by: Stefan Roese <sr@denx.de> Signed-off-by: Stefan Roese <sr@denx.de>
* st_smi: Add support for SPEAr SMI driverVipin KUMAR2012-07-07-115/+0
| | | | | | | | | | | | | | SMI is the serial memory interface controller provided by ST. Earlier, a driver exists in the u-boot source code for the SMI IP. However, it was specific to spear platforms. This commit converts the same driver to a more generic driver. As a result, the driver files are renamed to st_smi.c and st_smi.h and moved into drivers/mtd folder for reusability by other platforms using smi controller peripheral. Signed-off-by: Vipin Kumar <vipin.kumar@st.com> Signed-off-by: Amit Virdi <amit.virdi@st.com> Signed-off-by: Stefan Roese <sr@denx.de>
* mtd/NAND: Remove obsolete SPEAr specific NAND driversVipin KUMAR2012-07-07-57/+0
| | | | | | | | | | | Since, SPEAr platform uses generic FSMC driver now, so spear specific files drivers/mtd/nand/spr_nand.c, arch/arm/include/asm/arch-spear/spr_nand.h are removed Signed-off-by: Vipin Kumar <vipin.kumar@st.com> Signed-off-by: Amit Virdi <amit.virdi@st.com> Signed-off-by: Stefan Roese <sr@denx.de> Acked-by: Scott Wood <scottwood@freescale.com>
* SPEAr: Configure FSMC driver for NAND interfaceVipin KUMAR2012-07-07-4/+4
| | | | | | | | | | | Since FSMC is a standard IP and it supports different memory interfaces, it is supported independent of spear platform and spear is configured to use that driver for interfacing with the NAND device Signed-off-by: Vipin Kumar <vipin.kumar@st.com> Signed-off-by: Amit Virdi <amit.virdi@st.com> Signed-off-by: Stefan Roese <sr@denx.de> Acked-by: Scott Wood <scottwood@freescale.com>
* arm: bugfix: save_boot_params_default accesses uninitalized stack when -O0Tetsuyuki Kobayashi2012-07-07-1/+7
| | | | | | | | save_boot_params_default() in cpu.c accesses uninitialized stack area when it compiled with -O0 (not optimized). Signed-off-by: Tetsuyuki Kobayashi <koba@kmckk.co.jp> Acked-by: Tom Rini <trini@ti.com>
* ARM: OMAP4/5: Move USB clocks to essential group.SRICHARAN R2012-07-07-9/+7
| | | | | | | | | USB clocks will be required for fastboot, tftp related functionalities. Move these clocks to essential group inorder to have the functionality working when non-essential clocks are not enabled. Signed-off-by: R Sricharan <r.sricharan@ti.com>
* ARM: OMAP4/5: Move gpmc clocks to essential group.SRICHARAN R2012-07-07-2/+2
| | | | | | | | | | GPMC clocks are currently getting enabled as a part non-essential clocks. This will be required during NOR boot. Move this to essential group to keep the functionality, when non-essential clocks are not enabled. Signed-off-by: R Sricharan <r.sricharan@ti.com>
* ARM: OMAP4+: Move external phy initialisations to arch specific place.SRICHARAN R2012-07-07-27/+39
| | | | | | | | | | The external phy is present in the case OMAP5 soc is currently configured in emif-common.c. This results in having dummy structures for those Socs which do not have a external phy. So by having a weak function in emif-common and overriding it in OMAP5, avoids the use of dummy structures. Signed-off-by: R Sricharan <r.sricharan@ti.com>
* omap4: Use a smaller M,N couple for IVA DPLLSebastien Jan2012-07-07-1/+1
| | | | | | | | | | This reduced M,N couple corresponds to the advised value from TI HW team. Tested on 4460 Pandaboard, it also provides peripheral clocks closer to the advised values. Signed-off-by: Sebastien Jan <s-jan@ti.com>
* omap: am33xx: accomodate input clocks other than 24 MhzSteve Sakoman2012-07-07-5/+5
| | | | | | | | | The PLL setup values currently assume a 24 Mhz input clock. This patch uses V_OSCK from the board config file to support boards with different input clock rates. Signed-off-by: Steve Sakoman <steve@sakoman.com>
* omap: emif: fix bug in manufacturer code testSteve Sakoman2012-07-07-1/+1
| | | | | | | Code currently tests for <= 0xff. Micron manufacturer code is 0xff, so Micron memory will not be detected! Signed-off-by: Steve Sakoman <steve@sakoman.com>
* omap: emif: deal with rams that return duplicate mr data on all byte lanesSteve Sakoman2012-07-07-1/+6
| | | | | | | | | | Some rams (Micron for example) return duplicate mr data on all byte lanes. Users of the get_mr function currently don't deal with this duplicated data gracefully. This patch detects the duplicated data and returns only the expected 8 bit mr data. Signed-off-by: Steve Sakoman <steve@sakoman.com>
* OMAP4+: Force DDR in self-refresh after warm resetLokesh Vutla2012-07-07-0/+27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Errata ID:i727 Description: The refresh rate is programmed in the EMIF_SDRAM_REF_CTRL[15:0] REG_REFRESH_RATE parameter taking into account frequency of the device. When a warm reset is applied on the system, the OMAP processor restarts with another OPP and so frequency is not the same. Due to this frequency change, the refresh rate will be too low and could result in an unexpected behavior on the memory side. Workaround: The workaround is to force self-refresh when coming back from the warm reset with the following sequence: • Set EMIF_PWR_MGMT_CTRL[10:8] REG_LP_MODE to 0x2 • Set EMIF_PWR_MGMT_CTRL[7:4] REG_SR_TIM to 0x0 • Do a dummy read (loads automatically new value of sr_tim) This will reduce the risk of memory content corruption, but memory content can't be guaranteed after a warm reset. This errata is impacted on OMAP4430: 1.0, 2.0, 2.1, 2.2, 2.3 OMAP4460: 1.0, 1.1 OMAP4470: 1.0 OMAP5430: 1.0 Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> Signed-off-by: R Sricharan <r.sricharan@ti.com> Signed-off-by: Senthilvadivu Guruswamy <svadivu@ti.com>
* OMAP4+: Handle sdram init after warm resetLokesh Vutla2012-07-07-4/+6
| | | | | | | | | | EMIF and DDR device state are preserved in warmreset. Redoing the full initialisation would cause unexpected behaviour. Do only partial initialisation to account for frequency change. Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> Signed-off-by: R Sricharan <r.sricharan@ti.com> Signed-off-by: Senthilvadivu Guruswamy <svadivu@ti.com>
* ARM: OMAP3+: Detect reset typeLokesh Vutla2012-07-07-0/+16
| | | | | | | | | | | | Certain modules are not affected by means of a warm reset and need not be configured again. Adding an API to detect the reset reason warm/cold. This will be used to skip the module configurations that are retained across a warm reset. Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> Signed-off-by: R Sricharan <r.sricharan@ti.com>
* arm: bugfix: Move vector table before jumping relocated codeTetsuyuki Kobayashi2012-07-07-0/+12
| | | | | | | | | | Interrupts and exceptions doesn't work in relocated code. It badly use IRQ_STACK_START_IN in rom area as interrupt stack. It is because the vecotr table is not moved to ram area. This patch moves vector table before jumping relocated code. Signed-off-by: Tetsuyuki Kobayashi <koba@kmckk.co.jp> Tested-by: Tom Rini <trini@ti.com>
* arm/kirkwood: protect the ENV_SPI #definesValentin Longchamp2012-07-07-3/+9
| | | | | | | | So that they can be redefined by some boards specific values. Signed-off-by: Valentin Longchamp <valentin.longchamp@keymile.com> Signed-off-by: Holger Brunck <holger.brunck@keymile.com> cc: Prafulla Wadaskar <prafulla@marvell.com>
* kw_spi: support spi_claim/release_bus functionsValentin Longchamp2012-07-07-0/+11
| | | | | | | | | | | | | These two function nows ensure that the MPP is configured correctly for the SPI controller before any SPI access, and restore the initial configuration when the access is over. Since the used pins for the SPI controller can differ (2 possibilities for each signal), the used pins are configured with CONFIG_SYS_KW_SPI_MPP. Signed-off-by: Valentin Longchamp <valentin.longchamp@keymile.com> cc: Holger Brunck <holger.brunck@keymile.com> cc: Prafulla Wadaskar <prafulla@marvell.com>
* kirkwood: add save functionality kirkwood_mpp_conf functionValentin Longchamp2012-07-07-2/+10
| | | | | | | | | | | | | | If a second non NULL argument is given to the kirkwood_mpp_conf function, it will be used to store the current configuration of the MPP registers. mpp_save must be a preallocated table of the same size as mpp_list and it must be zero terminated as well. A later call to kirkwood_mpp_conf function with this saved list as first (mpp_conf) argment will set the configuration back. Signed-off-by: Valentin Longchamp <valentin.longchamp@keymile.com> cc: Holger Brunck <holger.brunck@keymile.com> cc: Prafulla Wadaskar <prafulla@marvell.com>
* ATMEL/PIO: Enable new feature of PIO on Atmel deviceBo Shen2012-07-07-1/+44
| | | | | | | | Enable new PIO feature supported by Atmel SoC. Using CPU_HAS_PIO3 micro to enable PIO new feature. Signed-off-by: Bo Shen <voice.shen@atmel.com> Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
* i.MX6 USDHC: Use the ESDHC clockMichael Langer2012-07-07-0/+4
| | | | | | | | | | | | | | | The commit "i.mx: fsl_esdhc: add the i.mx6q support" (4692708d) introduces support for the i.MX6Q MMC host controller USDHC. MXC_IPG_PERCLK sets the clock to 66MHz. This seems to be the default clock of the ESDHC IP found in < i.MX6 silicon. However, the default clock for the USDHC IP found in i.MX6 is 200MHz (MXC_ESDHC_CLK). This difference will cause a 3 times higher clock on SD_CLK than expected (see fsl_esdh.c -> set_sysctl()). Signed-off-by: Michael Langer <michael.langer@de.bosch.com> CC: Stefano Babic <sbabic@denx.de> CC: Jason Liu <r64343@freescale.com> Acked-by: Stefano Babic <sbabic@denx.de>
* i.MX28: Add function to adjust memory parametersMarek Vasut2012-07-07-0/+8
| | | | | | | | | | | | | | This function can be overridden at run-time and allows implementors of new boards based on the i.MX28 chip to fine-tune the memory params. It is possible to write into the dram_vals array because when the SPL runs, it is located SRAM. Therefore the location is writable. There is no possibility of these data to be read-only. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Wolfgang Denk <wd@denx.de> Cc: Detlev Zundel <dzu@denx.de> Cc: Stefano Babic <sbabic@denx.de> Cc: Fabio Estevam <festevam@gmail.com>
* MX28: Fix a typo in mx28_reg_8 macroOtavio Salvador2012-07-07-1/+1
| | | | | | | | | The macro mistakenly referred to 32bit struct instead of 8bit one. Signed-off-by: Otavio Salvador <otavio@ossystems.com.br> Cc: Fabio Estevam <fabio.estevam@freescale.com> Cc: Marek Vasut <marex@denx.de> Acked-by: Marek Vasut <marex@denx.de>
* mx53: Fix mask for SATA reference clockFabio Estevam2012-07-07-1/+1
| | | | | | | | SATA_ALT_REF_CLK field corresponds to bits 1 and 2 of offset 0x180c. Fix the mask for these bits. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
* i.mx: i.mx6x: NO_MUX_I/NO_PAD_I not set correctlyJason Liu2012-07-07-2/+2
| | | | | | | | | If one PAD does not have mux or pad config register, we need set the NO_MUX_I/NO_PAD_I to 0, the old value is not correct Signed-off-by: Jason Liu <jason.hui@linaro.org> CC: Stefano Babic <sbabic@denx.de> Acked-by: Stefano Babic <sbabic@denx.de>
* EXYNOS5: PINMUX: Added default pinumx settingsRajeshwari Shinde2012-07-07-1/+326
| | | | | | | | | | | | | This patch performs the pinmux configuration in a common file. As of now only EXYNOS5 pinmux for SDMMC, UART and Ethernet is supported. Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com> Signed-off-by: Che-Liang Chiou <clchiou@chromium.org> Signed-off-by: Rajeshwari Shinde <rajeshwari.s@samsung.com> Acked-by: Chander Kashyap <chander.kashyap@linaro.org> Acked-by: Simon Glass <sjg@chromium.org> Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
* Exynos: fix cpuinfo and cpu detectingMinkyu Kang2012-07-07-16/+37
| | | | | | | | | | Since Exynos architecture have new SoCs, need to fix cpuinfo correctly. Signed-off-by: Minkyu Kang <mk7.kang@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Tested-by: Jaehoon Chung <jh80.chung@samsung.com> Cc: Chander Kashyap <chander.kashyap@linaro.org>
* ARM: OMAP4: Correct the lpddr2 io settings register value.SRICHARAN R2012-07-07-1/+1
| | | | | | | | | | To meet certain timing requirements on the lpddr2 cmd and data phy interfaces ,lpddr iopads have to be configured as differential buffers and a Vref has to be internally generated and provided to these buffers. Correcting the above settings here. Signed-off-by: R Sricharan <r.sricharan@ti.com>
* OMAP5: Change voltages for omap5432Lokesh Vutla2012-07-07-10/+31
| | | | | | Change voltages for OMAP5432 Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
* OMAP5: DPLL core lock for OMAP5432Lokesh Vutla2012-07-07-6/+25
| | | | | | | No need to Unlock DPLL initially. DDR3 can work at normal OPP from initialozation Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
* OMAP5: EMIF: Add support for DDR3 deviceLokesh Vutla2012-07-07-4/+166
| | | | | | | | | In OMAP5432 EMIF controlller supports DDR3 device. This patch adds support for ddr3 device intialization and configuration. Initialization sequence is done as specified in JEDEC specs. This also adds support for ddr3 leveling. Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
* OMAP5: ADD precalculated timings for ddr3Lokesh Vutla2012-07-07-1/+55
| | | | | | | Adding precalculated timings for ddr3 with 1cs adding required registers for ddr3 Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
* OMAP5: Configure the io settings for omap5432 uevm boardLokesh Vutla2012-07-07-20/+93
| | | | | | This patch adds the IO settings required for OMAP5432 uevm's DDR3 pads Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
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