[PATCH v2 RESEND 10/11] mtd: st_spi_fsm: Provide mask to obtain correct boot device pins
From: Lee Jones <hidden>
Date: 2014-12-04 10:23:43
Also in:
lkml
Subsystem:
memory technology devices (mtd), the rest · Maintainers:
Miquel Raynal, Richard Weinberger, Vignesh Raghavendra, Linus Torvalds
From: Christophe Kerello <redacted>
This patch adds a mask to be able to get the right boot device selection.
For example:
for STiH415, value = SYSTEM_STATUS398[4:0]
for STiH416, value = SYSTEM_STATUS2598[4:0]
for STiH407, value = SYSTEM_STATUS5561[6:2]
Signed-off-by: Christophe Kerello <redacted>
Signed-off-by: Lee Jones <redacted>
---
drivers/mtd/devices/st_spi_fsm.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/mtd/devices/st_spi_fsm.c b/drivers/mtd/devices/st_spi_fsm.c
index 18f6f0b..f992f00 100644
--- a/drivers/mtd/devices/st_spi_fsm.c
+++ b/drivers/mtd/devices/st_spi_fsm.c@@ -2123,6 +2123,7 @@ static void stfsm_fetch_platform_configs(struct platform_device *pdev) struct regmap *regmap; uint32_t boot_device_reg; uint32_t boot_device_spi; + uint32_t boot_device_msk; uint32_t boot_device; /* Value we read from *boot_device_reg */ int ret;
@@ -2147,10 +2148,17 @@ static void stfsm_fetch_platform_configs(struct platform_device *pdev) if (ret) goto boot_device_fail; + /* Mask to apply on boot_device_reg */ + ret = of_property_read_u32(np, "st,boot-device-msk", &boot_device_msk); + if (ret) + goto boot_device_fail; + ret = regmap_read(regmap, boot_device_reg, &boot_device); if (ret) goto boot_device_fail; + boot_device &= boot_device_msk; + if (boot_device != boot_device_spi) fsm->booted_from_spi = false;
--
1.9.1