[U-Boot] [PATCH] omap: Don't enable GPMC CS0 with nothing attached

Ash Charles ashcharles at gmail.com
Fri Jun 6 20:27:28 CEST 2014


If CONFIG_(NAND|NOR|ONENAND) is not defined, no configuration is set
for GPMC on chip select #0---size is 0.  In this case, the GPMC
configuration should be reset but not enabled.  Enabling causes the
Gumstix DuoVero board to hang when entering Linux.

Signed-off-by: Ash Charles <ashcharles at gmail.com>
---
 arch/arm/cpu/armv7/omap-common/mem-common.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/arm/cpu/armv7/omap-common/mem-common.c b/arch/arm/cpu/armv7/omap-common/mem-common.c
index 944ef84..f3aa268 100644
--- a/arch/arm/cpu/armv7/omap-common/mem-common.c
+++ b/arch/arm/cpu/armv7/omap-common/mem-common.c
@@ -133,5 +133,6 @@ void gpmc_init(void)
 	writel(0, &gpmc_cfg->cs[0].config7);
 	sdelay(1000);
 	/* enable chip-select specific configurations */
-	enable_gpmc_cs_config(gpmc_regs, &gpmc_cfg->cs[0], base, size);
+	if (size != 0)
+		enable_gpmc_cs_config(gpmc_regs, &gpmc_cfg->cs[0], base, size);
 }
-- 
1.8.3.2



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