From: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Date: Sun, 13 Jan 2019 18:58:42 +0000 (+0100)
Subject: arm: socfpga: gen5: remove hacked ETH RST handling
X-Git-Url: http://git.dujemihanovic.xyz/?a=commitdiff_plain;h=473f55676a65e068ba82096f54cd1e9f16ecc006;p=u-boot.git

arm: socfpga: gen5: remove hacked ETH RST handling

The 'dwmac_socfpga' ETH driver can now get the MACs out of reset
via the socfpga reset driver and can set PHY mode via syscon.

This means we can now remove the ad-hoc code to do this from
arch/arm/mach-socfpga.

Signed-off-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
---

diff --git a/arch/arm/mach-socfpga/include/mach/reset_manager.h b/arch/arm/mach-socfpga/include/mach/reset_manager.h
index d9e0b33c60..42beaecdd6 100644
--- a/arch/arm/mach-socfpga/include/mach/reset_manager.h
+++ b/arch/arm/mach-socfpga/include/mach/reset_manager.h
@@ -10,8 +10,6 @@ void reset_cpu(ulong addr);
 
 void socfpga_per_reset(u32 reset, int set);
 void socfpga_per_reset_all(void);
-int socfpga_eth_reset_common(void (*resetfn)(const u8 of_reset_id,
-					     const u8 phymode));
 
 #define RSTMGR_CTRL_SWWARMRSTREQ_LSB 1
 
diff --git a/arch/arm/mach-socfpga/misc.c b/arch/arm/mach-socfpga/misc.c
index 78fbe28724..e1adea143c 100644
--- a/arch/arm/mach-socfpga/misc.c
+++ b/arch/arm/mach-socfpga/misc.c
@@ -120,71 +120,6 @@ int arch_cpu_init(void)
 	return 0;
 }
 
-#ifdef CONFIG_ETH_DESIGNWARE
-static int dwmac_phymode_to_modereg(const char *phymode, u32 *modereg)
-{
-	if (!phymode)
-		return -EINVAL;
-
-	if (!strcmp(phymode, "mii") || !strcmp(phymode, "gmii")) {
-		*modereg = SYSMGR_EMACGRP_CTRL_PHYSEL_ENUM_GMII_MII;
-		return 0;
-	}
-
-	if (!strcmp(phymode, "rgmii")) {
-		*modereg = SYSMGR_EMACGRP_CTRL_PHYSEL_ENUM_RGMII;
-		return 0;
-	}
-
-	if (!strcmp(phymode, "rmii")) {
-		*modereg = SYSMGR_EMACGRP_CTRL_PHYSEL_ENUM_RMII;
-		return 0;
-	}
-
-	return -EINVAL;
-}
-
-int socfpga_eth_reset_common(void (*resetfn)(const u8 of_reset_id,
-					     const u8 phymode))
-{
-	const void *fdt = gd->fdt_blob;
-	struct fdtdec_phandle_args args;
-	const char *phy_mode;
-	u32 phy_modereg;
-	int nodes[2];	/* Max. two GMACs */
-	int ret, count;
-	int i, node;
-
-	count = fdtdec_find_aliases_for_id(fdt, "ethernet",
-					   COMPAT_ALTERA_SOCFPGA_DWMAC,
-					   nodes, ARRAY_SIZE(nodes));
-	for (i = 0; i < count; i++) {
-		node = nodes[i];
-		if (node <= 0)
-			continue;
-
-		ret = fdtdec_parse_phandle_with_args(fdt, node, "resets",
-						     "#reset-cells", 1, 0,
-						     &args);
-		if (ret || (args.args_count != 1)) {
-			debug("GMAC%i: Failed to parse DT 'resets'!\n", i);
-			continue;
-		}
-
-		phy_mode = fdt_getprop(fdt, node, "phy-mode", NULL);
-		ret = dwmac_phymode_to_modereg(phy_mode, &phy_modereg);
-		if (ret) {
-			debug("GMAC%i: Failed to parse DT 'phy-mode'!\n", i);
-			continue;
-		}
-
-		resetfn(args.args[0], phy_modereg);
-	}
-
-	return 0;
-}
-#endif
-
 #ifndef CONFIG_SPL_BUILD
 static int do_bridge(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
diff --git a/arch/arm/mach-socfpga/misc_gen5.c b/arch/arm/mach-socfpga/misc_gen5.c
index 04f237d100..6e11ba6cb2 100644
--- a/arch/arm/mach-socfpga/misc_gen5.c
+++ b/arch/arm/mach-socfpga/misc_gen5.c
@@ -54,48 +54,6 @@ static Altera_desc altera_fpga[] = {
 	},
 };
 
-/*
- * DesignWare Ethernet initialization
- */
-#ifdef CONFIG_ETH_DESIGNWARE
-static void gen5_dwmac_reset(const u8 of_reset_id, const u8 phymode)
-{
-	u32 physhift, reset;
-
-	if (of_reset_id == EMAC0_RESET) {
-		physhift = SYSMGR_EMACGRP_CTRL_PHYSEL0_LSB;
-		reset = SOCFPGA_RESET(EMAC0);
-	} else if (of_reset_id == EMAC1_RESET) {
-		physhift = SYSMGR_EMACGRP_CTRL_PHYSEL1_LSB;
-		reset = SOCFPGA_RESET(EMAC1);
-	} else {
-		printf("GMAC: Invalid reset ID (%i)!\n", of_reset_id);
-		return;
-	}
-
-	/* configure to PHY interface select choosed */
-	clrsetbits_le32(&sysmgr_regs->emacgrp_ctrl,
-			SYSMGR_EMACGRP_CTRL_PHYSEL_MASK << physhift,
-			phymode << physhift);
-
-	/* Release the EMAC controller from reset */
-	socfpga_per_reset(reset, 0);
-}
-
-static int socfpga_eth_reset(void)
-{
-	/* Put all GMACs into RESET state. */
-	socfpga_per_reset(SOCFPGA_RESET(EMAC0), 1);
-	socfpga_per_reset(SOCFPGA_RESET(EMAC1), 1);
-	return socfpga_eth_reset_common(gen5_dwmac_reset);
-};
-#else
-static int socfpga_eth_reset(void)
-{
-	return 0;
-};
-#endif
-
 static const struct {
 	const u16	pn;
 	const char	*name;
@@ -178,7 +136,7 @@ int arch_misc_init(void)
 	env_set("bootmode", bsel_str[bsel].mode);
 	if (fpga_id >= 0)
 		env_set("fpgatype", socfpga_fpga_model[fpga_id].var);
-	return socfpga_eth_reset();
+	return 0;
 }
 #endif