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path: root/drivers/ram/stm32_sdram.c
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* common: Drop linux/bitops.h from common headerSimon Glass2020-05-181-0/+1
| | | | | | Move this uncommon header out of the common header. Signed-off-by: Simon Glass <sjg@chromium.org>
* common: Drop linux/delay.h from common headerSimon Glass2020-05-181-0/+1
| | | | | | Move this uncommon header out of the common header. Signed-off-by: Simon Glass <sjg@chromium.org>
* common: Drop log.h from common headerSimon Glass2020-05-181-0/+1
| | | | | | Move this header out of the common header. Signed-off-by: Simon Glass <sjg@chromium.org>
* common: Drop init.h from common headerSimon Glass2020-05-181-0/+1
| | | | | | Move this uncommon header out of the common header. Signed-off-by: Simon Glass <sjg@chromium.org>
* dm: core: Create a new header file for 'compat' featuresSimon Glass2020-02-051-0/+1
| | | | | | | | | | | | At present dm/device.h includes the linux-compatible features. This requires including linux/compat.h which in turn includes a lot of headers. One of these is malloc.h which we thus end up including in every file in U-Boot. Apart from the inefficiency of this, it is problematic for sandbox which needs to use the system malloc() in some files. Move the compatibility features into a separate header file. Signed-off-by: Simon Glass <sjg@chromium.org>
* ram: stm32_sdram: Adds stm32f429-disco fixes for HardFault at bootingRadoslaw Pietrzyk2018-05-261-13/+24
| | | | | | | | | - adds reading FMC swap setting from DTB to SDRAM driver - sets FMC swap for stm32f429-disco board - changes ram start address to 0x90000000 Signed-off-by: Radoslaw Pietrzyk <radoslaw.pietrzyk@gmail.com> Acked-by: Patrice Chotard <patrice.chotard@st.com>
* SPDX: Convert all of our single license tags to Linux Kernel styleTom Rini2018-05-071-2/+1
| | | | | | | | | | | | | | | | | | | | When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
* Remove unnecessary instances of DECLARE_GLOBAL_DATA_PTRTom Rini2018-04-271-2/+0
| | | | | | | | We have a large number of places where while we historically referenced gd in the code we no longer do, as well as cases where the code added that line "just in case" during development and never dropped it. Signed-off-by: Tom Rini <trini@konsulko.com>
* ram: stm32: add memory mapping selection supportPatrice Chotard2018-01-101-0/+25
| | | | | | | | | | | | | | | This allows to controls the memory internal mapping at address 0x0000 0000. We can either map at 0x0000 0000 : _ main flash memory _ system flash memory _ FMC bank1 (NOR/PSRAM 1 and 2) _ embedded SRAM _ FMC/SDRAM bank1 This is needed for future STM32F469-disco board Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
* stm32: fix STMicroelectronics copyrightPatrice Chotard2017-11-061-2/+2
| | | | | | | Uniformize STMicroelectronics copyrights headers for STM32 related code. Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
* treewide: replace with error() with pr_err()Masahiro Yamada2017-10-041-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | U-Boot widely uses error() as a bit noisier variant of printf(). This macro causes name conflict with the following line in include/linux/compiler-gcc.h: # define __compiletime_error(message) __attribute__((error(message))) This prevents us from using __compiletime_error(), and makes it difficult to fully sync BUILD_BUG macros with Linux. (Notice Linux's BUILD_BUG_ON_MSG is implemented by using compiletime_assert().) Let's convert error() into now treewide-available pr_err(). Done with the help of Coccinelle, excluing tools/ directory. The semantic patch I used is as follows: // <smpl> @@@@ -error +pr_err (...) // </smpl> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Simon Glass <sjg@chromium.org> [trini: Re-run Coccinelle] Signed-off-by: Tom Rini <trini@konsulko.com>
* ram: stm32: add stm32h7 supportPatrice Chotard2017-07-261-1/+24
| | | | | | | | | STM32F7 and H7 shared the same SDRAM control block. On STM32H7 few control bits has been added. The current driver need some minor adaptation as FMC block enable/disable for H7. Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
* ram: stm32: add second SDRAM bank managementPatrice Chotard2017-07-261-73/+142
| | | | | | | | | | | FMC is able to manage 2 SDRAM banks, but the current driver implementation is only able to manage the first SDRAM bank. Even if only bank2 is used, some bank1 registers must be configured. Signed-off-by: Patrice Chotard <patrice.chotard@st.com> Reviewed-by: Simon Glass <sjg@chromium.org>
* ram: stm32: replace fdtdec_get by ofnode callsPatrice Chotard2017-07-261-36/+47
| | | | | | | | Replace all fdtdec_get..() calls by ofnode_read...() or dev_read..(). This will allow drivers to support a live device tree. Signed-off-by: Patrice Chotard <patrice.chotard@st.com> Reviewed-by: Simon Glass <sjg@chromium.org>
* ram: stm32: get base address from DTPatrice Chotard2017-07-261-28/+64
| | | | | | | | | | | | | Retrieve RAM base address from DT instead of using STM32_SDRAM_FMC For STM32F7, FMC block base address is 0xA0000000, but SDRAM registers are located at offset 0x140 inside FMC block. Update the stm32_fmc_regs fields with all FMC registers to map SDRAM registers at the right address. These additionals registers will be used later. Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
* ram: stm32: migrate fmc defines in driver filePatrice Chotard2017-07-261-1/+58
| | | | | | | | | | | | Migrate all FMC defines from arch/arm/include/asm/arch-stm32f7/fmc.h to drivers/ram/stm32_sdram.c This will avoid to add an additionnal arch-stm32xx/fmc.h file when a new stm32 family soc will be introduced. Signed-off-by: Patrice Chotard <patrice.chotard@st.com> Reviewed-by: Vikas Manocha <vikas.manocha@st.com> Reviewed-by: Simon Glass <sjg@chromium.org>
* drivers: ram: stm32: fix compilation issuePatrice Chotard2017-06-051-1/+1
| | | | | | | | | | | | If CONFIG_CLK flag is not set, compilation raises the following error message: drivers/ram/stm32_sdram.c: In function 'stm32_fmc_probe': drivers/ram/stm32_sdram.c:154:2: error: 'ret' undeclared (first use in this function) ret = stm32_sdram_init(dev); Signed-off-by: Patrice Chotard <patrice.chotard@st.com> cc: Vikas Manocha <vikas.manocha@st.com>
* dm: core: Replace of_offset with accessor (part 2)Simon Glass2017-06-011-1/+1
| | | | | | | | | At present devices use a simple integer offset to record the device tree node associated with the device. In preparation for supporting a live device tree, which uses a node pointer instead, refactor existing code to access this field through an inline function. Signed-off-by: Simon Glass <sjg@chromium.org>
* stm32f7: sdram: correct sdram configuration as per micron sdramVikas Manocha2017-05-081-39/+16
| | | | | | | | | | | | Actually the sdram memory on stm32f746 discovery board is micron part MT48LC_4M32_B2B5_6A. This patch does the modification required in the device tree node & driver for the same. Also we are passing here all the timing parameters in terms of clock cycles, so no need to convert time(ns or ms) to cycles. Signed-off-by: Vikas Manocha <vikas.manocha@st.com> cc: Christophe KERELLO <christophe.kerello@st.com>
* stm32f7: stm32f746-disco: read memory info from device treeVikas Manocha2017-05-081-1/+0
| | | | | Signed-off-by: Vikas Manocha <vikas.manocha@st.com> cc: Christophe KERELLO <christophe.kerello@st.com>
* stm32f7: sdram: use sdram device tree node to configure sdram controllerVikas Manocha2017-05-081-53/+91
| | | | | Signed-off-by: Vikas Manocha <vikas.manocha@st.com> cc: Christophe KERELLO <christophe.kerello@st.com>
* stm32f7: use clock driver to enable sdram controller clockVikas Manocha2017-05-081-0/+15
| | | | | | | | This patch also removes the sdram/fmc clock enable from board specific code. Signed-off-by: Vikas Manocha <vikas.manocha@st.com> cc: Christophe KERELLO <christophe.kerello@st.com>
* stm32f7: dm: add driver model support for sdramVikas Manocha2017-05-081-0/+31
| | | | | Signed-off-by: Vikas Manocha <vikas.manocha@st.com> cc: Christophe KERELLO <christophe.kerello@st.com>
* stm32f7: sdram: move sdram driver code to ram drivers areaVikas Manocha2017-05-081-0/+119
Signed-off-by: Vikas Manocha <vikas.manocha@st.com> cc: Christophe KERELLO <christophe.kerello@st.com>
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