From: Dinh Nguyen <dinguyen@kernel.org>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH] arm: socfpga: revert "set the fpga global bit to disable HPS to FPGA signals"
Date: Tue, 19 Jan 2016 09:16:21 -0600 [thread overview]
Message-ID: <1453216581-3035-1-git-send-email-dinguyen@kernel.org> (raw)
Revert "arm: socfpga: set the fpga global bit to disable HPS to FPGA signals"
Apparently, the logic for the FPGA global bit is not universal between Gen5
and Gen10 devices is not the same. Disabling this bit, while applicable to
Gen10 devices, will break FPGA programming on Gen5 devices.
Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>
---
drivers/fpga/socfpga.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/fpga/socfpga.c b/drivers/fpga/socfpga.c
index 431e159..4448250 100644
--- a/drivers/fpga/socfpga.c
+++ b/drivers/fpga/socfpga.c
@@ -269,7 +269,7 @@ int socfpga_load(Altera_desc *desc, const void *rbf_data, size_t rbf_size)
/* Prior programming the FPGA, all bridges need to be shut off */
/* Disable all signals from hps peripheral controller to fpga */
- writel(0, &sysmgr_regs->fpgaintfgrp_gbl);
+ writel(0, &sysmgr_regs->fpgaintfgrp_module);
/* Disable all signals from FPGA to HPS SDRAM */
#define SDR_CTRLGRP_FPGAPORTRST_ADDRESS 0x5080
--
1.9.1.315.g3f09db0
next reply other threads:[~2016-01-19 15:16 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-19 15:16 Dinh Nguyen [this message]
2016-01-19 15:50 ` [U-Boot] [PATCH] arm: socfpga: revert "set the fpga global bit to disable HPS to FPGA signals" Dinh Nguyen
2016-01-19 23:03 ` Marek Vasut
2016-01-19 23:06 ` Marek Vasut
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