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u-boot-brain/drivers/mmc
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Stefan Roese 492d3223b0 mmc: sdhci.c: Add config option to use a fixed buffer for transfers 
While implementing SDIO/MMC SPL booting for the Marvell Armada 38x, the
following problem occured. The SPL runs in internal SRAM which is
the L2 cache locked to memory. When the MMC buffers now are located
on the stack (or bss), the SDIO controller (SDHCI) can't write into
this L2 cache memory.

This patch introduces a method to use a fixed buffer that will be
used for all transfers by defining CONFIG_FIXED_SDHCI_ALIGNED_BUFFER.
This way, the board can use this buffer address located in SDRAM
for all transfers. This solves this SPL problem on the A38x and
should only be used in the SPL U-Boot version.

Tested for SPL booting on Marvell Armada 38x DB-88F6820-GP board.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Pantelis Antoniou <panto@antoniou-consulting.com>
Cc: Luka Perkov <luka.perkov@sartura.hr>
2015-07-10 14:54:05 +02:00
..
arm_pl180_mmci.c mmc: Split mmc struct, rework mmc initialization (v2) 2014-03-24 12:58:56 +02:00
arm_pl180_mmci.h mmc: Split mmc struct, rework mmc initialization (v2) 2014-03-24 12:58:56 +02:00
bcm2835_sdhci.c mmc: bcm2835_sdhci: Restore original delay behavior 2015-06-25 17:04:37 -04:00
bfin_sdh.c mmc: set correct block size value in bfin sdh driver 2014-10-03 17:26:49 +03:00
davinci_mmc.c mmc: Split mmc struct, rework mmc initialization (v2) 2014-03-24 12:58:56 +02:00
dw_mmc.c mmc: remove the MMC_MODE_HC flag 2015-05-05 12:29:36 +03:00
exynos_dw_mmc.c mmc: exynos dwmmc: check boot mode before init dwmmc 2015-02-23 19:49:22 +02:00
fsl_esdhc_spl.c driver: Add support of image load for MMC & SPI in SPL 2014-04-22 17:58:50 -07:00
fsl_esdhc.c Merge git://git.denx.de/u-boot-mpc85xx 2015-05-05 14:57:23 -04:00
ftsdc010_mci.c mmc: Split mmc struct, rework mmc initialization (v2) 2014-03-24 12:58:56 +02:00
ftsdc021_sdhci.c mmc: add Faraday FTSDC021 SDHCI controller support 2013-12-08 14:23:05 +02:00
gen_atmel_mci.c MMC: atmel_mci: enable high speed mode support 2014-08-01 20:01:33 +03:00
Kconfig mmc: rmobile: Add SDHC support for Renesas rmobile ARM SoC 2015-01-19 16:24:25 +02:00
kona_sdhci.c mmc: remove the MMC_MODE_HC flag 2015-05-05 12:29:36 +03:00
Makefile x86: mmc: Move common FSP functions into a common file 2015-02-06 12:07:36 -07:00
mmc_private.h mmc: fsl_esdhc: Add adapter card type identification support 2015-05-04 09:25:19 -07:00
mmc_spi.c mmc: Split mmc struct, rework mmc initialization (v2) 2014-03-24 12:58:56 +02:00
mmc_write.c mmc_write.c: Make mmc_berase do 32bit safe 64bit math 2015-06-18 16:11:41 -04:00
mmc.c Merge git://git.denx.de/u-boot-mpc85xx 2015-05-05 14:57:23 -04:00
mv_sdhci.c mv_sdhci: fix warnings on 64-bit builds 2015-03-18 09:56:17 +02:00
mvebu_mmc.c mmc: remove the MMC_MODE_HC flag 2015-05-05 12:29:36 +03:00
mxcmmc.c mmc: Split mmc struct, rework mmc initialization (v2) 2014-03-24 12:58:56 +02:00
mxsmmc.c mmc: remove the MMC_MODE_HC flag 2015-05-05 12:29:36 +03:00
omap_hsmmc.c mmc: remove the MMC_MODE_HC flag 2015-05-05 12:29:36 +03:00
pci_mmc.c x86: mmc: Move common FSP functions into a common file 2015-02-06 12:07:36 -07:00
pxa_mmc_gen.c linux/kernel.h: sync min, max, min3, max3 macros with Linux 2014-11-23 06:48:30 -05:00
rpmb.c includes: move openssl headers to include/u-boot 2014-06-19 11:19:04 -04:00
s3c_sdi.c mmc: remove the MMC_MODE_HC flag 2015-05-05 12:29:36 +03:00
s5p_sdhci.c mmc: remove the MMC_MODE_HC flag 2015-05-05 12:29:36 +03:00
sdhci.c mmc: sdhci.c: Add config option to use a fixed buffer for transfers 2015-07-10 14:54:05 +02:00
sh_mmcif.c mmc: remove the MMC_MODE_HC flag 2015-05-05 12:29:36 +03:00
sh_mmcif.h mmc: sh_mmcif: Add support rmobile 2014-12-05 11:16:22 +09:00
sh_sdhi.c mmc: rmobile: Add SDHC support for Renesas rmobile ARM SoC 2015-01-19 16:24:25 +02:00
socfpga_dw_mmc.c arm: socfpga: mmc: Pick the clock from clock manager 2014-10-06 17:46:49 +02:00
spear_sdhci.c Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
sunxi_mmc.c sunxi: mmc: Enable pull-up on card-detect gpio pin 2015-06-04 14:08:28 +02:00
tegra_mmc.c tegra: mmc: Set the removable flag correctly 2015-05-05 12:29:42 +03:00
zynq_sdhci.c mmc: remove the MMC_MODE_HC flag 2015-05-05 12:29:36 +03:00