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mtd: rawnand: brcmnand: Add platform data structure for BCMA

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Update the BCMA's chipcommon nand flash driver to detect which
chip-select is used and pass that information via platform data to the
brcmnand driver. Make sure that the brcmnand platform data structure is
always at the beginning of the platform data of the "nflash" device
created by BCMA to allow brcmnand to safely de-reference it.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20220107184614.2670254-7-f.fainelli@gmail.com
This commit is contained in:
Florian Fainelli
2022-01-07 10:46:11 -08:00
committed by Miquel Raynal
parent f5619f3774
commit 02d1d0e4df
4 changed files with 37 additions and 1 deletions
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5
include/linux/bcma/bcma_driver_chipcommon.h
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@@ -3,6 +3,7 @@
#define LINUX_BCMA_DRIVER_CC_H_
#include <linux/platform_device.h>
#include <linux/platform_data/brcmnand.h>
#include <linux/gpio.h>
/** ChipCommon core registers. **/
@@ -599,6 +600,10 @@ struct bcma_sflash {
#ifdef CONFIG_BCMA_NFLASH
struct bcma_nflash {
/* Must be the fist member for the brcmnand driver to
* de-reference that structure.
*/
struct brcmnand_platform_data brcmnand_info;
bool present;
bool boot; /* This is the flash the SoC boots from */
};