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drivers: nand: brcmnand: add parameter parameter-page-big-endian

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The parameter page isn't always in big endian, so we add
an option to choose the endiannes of the parameter page.

Signed-off-by: Philippe Reynes <philippe.reynes@softathome.com>
This commit is contained in:
Philippe Reynes 2019-03-15 15:14:37 +01:00 committed by Tom Rini
parent 22daafba25
commit 317d40eb01
1 changed files with 15 additions and 2 deletions
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17
drivers/mtd/nand/raw/brcmnand/brcmnand.c
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@ -113,6 +113,7 @@ struct brcmnand_controller {
unsigned int irq;
unsigned int dma_irq;
int nand_version;
int parameter_page_big_endian;
/* Some SoCs provide custom interrupt status register(s) */
struct brcmnand_soc *soc;
@ -1439,12 +1440,20 @@ static void brcmnand_cmdfunc(struct mtd_info *mtd, unsigned command,
* Must cache the FLASH_CACHE now, since changes in
* SECTOR_SIZE_1K may invalidate it
*/
for (i = 0; i < FC_WORDS; i++)
for (i = 0; i < FC_WORDS; i++) {
u32 fc;
fc = brcmnand_read_fc(ctrl, i);
/*
* Flash cache is big endian for parameter pages, at
* least on STB SoCs
*/
flash_cache[i] = be32_to_cpu(brcmnand_read_fc(ctrl, i));
if (ctrl->parameter_page_big_endian)
flash_cache[i] = be32_to_cpu(fc);
else
flash_cache[i] = le32_to_cpu(fc);
}
brcmnand_soc_data_bus_unprepare(ctrl->soc, true);
@ -2550,6 +2559,10 @@ int brcmnand_probe(struct udevice *dev, struct brcmnand_soc *soc)
nand_hw_control_init(&ctrl->controller);
INIT_LIST_HEAD(&ctrl->host_list);
/* Is parameter page in big endian ? */
ctrl->parameter_page_big_endian =
dev_read_u32_default(dev, "parameter-page-big-endian", 1);
/* NAND register range */
#ifndef __UBOOT__
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);