[U-Boot] [RFC][PATCH V0 6/7] drivers: nand: brcmnand: add parameter parameter-page-big-endian
Philippe Reynes
philippe.reynes at softathome.com
Fri Nov 16 13:57:03 UTC 2018
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 at softathome.com>
---
drivers/mtd/nand/raw/brcmnand/brcmnand.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/drivers/mtd/nand/raw/brcmnand/brcmnand.c b/drivers/mtd/nand/raw/brcmnand/brcmnand.c
index 5a53cb9..b156642 100644
--- a/drivers/mtd/nand/raw/brcmnand/brcmnand.c
+++ b/drivers/mtd/nand/raw/brcmnand/brcmnand.c
@@ -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;
@@ -1446,7 +1447,10 @@ static void brcmnand_cmdfunc(struct mtd_info *mtd, unsigned command,
* 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(brcmnand_read_fc(ctrl, i));
+ else
+ flash_cache[i] = le32_to_cpu(brcmnand_read_fc(ctrl, i));
brcmnand_soc_data_bus_unprepare(ctrl->soc, true);
@@ -2554,6 +2558,9 @@ 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 */
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
ctrl->nand_base = devm_ioremap_resource(dev, res);
--
2.7.4
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