netdev - [PATCHv2 5/6] net: stmmac: socfpga: Use shared System Manager driver

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Date:   Thu, 20 Dec 2018 18:23:21 -0600
From:   thor.thayer@...ux.intel.com
To:     lee.jones@...aro.org, robh+dt@...nel.org, mark.rutland@....com,
        dinguyen@...nel.org, arnd@...db.de, linux@...linux.org.uk,
        catalin.marinas@....com, will.deacon@....com,
        peppe.cavallaro@...com, alexandre.torgue@...com,
        joabreu@...opsys.com
Cc:     davem@...emloft.net, mcoquelin.stm32@...il.com,
        mchehab+samsung@...nel.org, bjorn.andersson@...aro.org,
        olof@...om.net, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        netdev@...r.kernel.org, Thor Thayer <thor.thayer@...ux.intel.com>
Subject: [PATCHv2 5/6] net: stmmac: socfpga: Use shared System Manager driver

From: Thor Thayer <thor.thayer@...ux.intel.com>

The ARM64 System Manager requires a different method of reading
the System Manager than ARM32. A new System Manager driver was
created to steer ARM32 System Manager calls to regmap_mmio and
ARM64 System Manager calls to the new access method.

Convert from syscon to the shared System Manager driver so that
both ARM64 and ARM32 are supported.

Signed-off-by: Thor Thayer <thor.thayer@...ux.intel.com>
---
v2  No change to code. Update commit message.
---
 drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c
index 5b3b06a0a3bf..743c7f471edb 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c
@@ -15,6 +15,7 @@
  * Adopted from dwmac-sti.c
  */
 
+#include <linux/mfd/altera-sysmgr.h>
 #include <linux/mfd/syscon.h>
 #include <linux/of.h>
 #include <linux/of_address.h>
@@ -114,7 +115,8 @@ static int socfpga_dwmac_parse_data(struct socfpga_dwmac *dwmac, struct device *
 
 	dwmac->interface = of_get_phy_mode(np);
 
-	sys_mgr_base_addr = syscon_regmap_lookup_by_phandle(np, "altr,sysmgr-syscon");
+	sys_mgr_base_addr =
+		altr_sysmgr_regmap_lookup_by_phandle(np, "altr,sysmgr-syscon");
 	if (IS_ERR(sys_mgr_base_addr)) {
 		dev_info(dev, "No sysmgr-syscon node found\n");
 		return PTR_ERR(sys_mgr_base_addr);
-- 
2.7.4