[PATCH] arm: kirkwood: GoFlex Home : Use Marvell uclass mvgbe and PHY driver for Ethernet
Pali Rohár
pali at kernel.org
Wed Jan 26 11:35:34 CET 2022
On Tuesday 25 January 2022 19:33:44 Tony Dinh wrote:
> The GoFlex Home board has the network chip Marvell 88E1116R.
> Use uclass mvgbe and the compatible driver M88E1118R to bring up Ethernet.
>
> - Currently, CONFIG_RESET_PHY_R symbol is used in
> arch/arm/mach-kirkwood/include/mach/config.h for all Kirkwood
> boards with mv8831116 PHY, with each board defines the function
> reset_phy(). Undefine it for this board.
> - Add board_eth_init() to use uclass mvgbe to bring up the network.
> And remove ad-hoc code.
> - Enable CONFIG_PHY_MARVELL to properly configure the network.
> - Miscellaneous changes: use CONFIG_SYS_THUMB_BUILD to keep u-boot image
> under 512K, use BIT macro, and cleanup comments.
>
> Signed-off-by: Tony Dinh <mibodhi at gmail.com>
Nice cleanup,
Reviewed-by: Pali Rohár <pali at kernel.org>
> ---
>
> board/Seagate/goflexhome/goflexhome.c | 84 ++++-----------------------
> configs/goflexhome_defconfig | 2 +
> include/configs/goflexhome.h | 32 +++-------
> 3 files changed, 22 insertions(+), 96 deletions(-)
>
> diff --git a/board/Seagate/goflexhome/goflexhome.c b/board/Seagate/goflexhome/goflexhome.c
> index 52be64fb8c..caea89c10e 100644
> --- a/board/Seagate/goflexhome/goflexhome.c
> +++ b/board/Seagate/goflexhome/goflexhome.c
> @@ -1,10 +1,7 @@
> // SPDX-License-Identifier: GPL-2.0+
> /*
> - * Copyright (C) 2021
> - * Tony Dinh <mibodhi at gmail.com>
> - * Suriyan Ramasami <suriyan.r at gmail.com>
> - *
> - * Copyright (C) 2013 Suriyan Ramasami <suriyan.r at gmail.com>
> + * Copyright (C) 2021-2022 Tony Dinh <mibodhi at gmail.com>
> + * Copyright (C) 2013-2021 Suriyan Ramasami <suriyan.r at gmail.com>
> *
> * Based on dockstar.c originally written by
> * Copyright (C) 2010 Eric C. Cooper <ecc at cmu.edu>
> @@ -18,14 +15,14 @@
> #include <common.h>
> #include <bootstage.h>
> #include <init.h>
> -#include <miiphy.h>
> -#include <net.h>
> +#include <netdev.h>
> #include <asm/global_data.h>
> #include <asm/mach-types.h>
> #include <asm/arch/soc.h>
> #include <asm/arch/mpp.h>
> #include <asm/arch/cpu.h>
> #include <asm/io.h>
> +#include <linux/bitops.h>
>
> DECLARE_GLOBAL_DATA_PTR;
>
> @@ -98,6 +95,11 @@ int board_early_init_f(void)
> return 0;
> }
>
> +int board_eth_init(struct bd_info *bis)
> +{
> + return cpu_eth_init(bis);
> +}
> +
> int board_init(void)
> {
> /*
> @@ -111,73 +113,9 @@ int board_init(void)
> return 0;
> }
>
> -static int fdt_get_phy_addr(const char *path)
> -{
> - const void *fdt = gd->fdt_blob;
> - const u32 *reg;
> - const u32 *val;
> - int node, phandle, addr;
> -
> - /* Find the node by its full path */
> - node = fdt_path_offset(fdt, path);
> - if (node >= 0) {
> - /* Look up phy-handle */
> - val = fdt_getprop(fdt, node, "phy-handle", NULL);
> - if (val) {
> - phandle = fdt32_to_cpu(*val);
> - if (!phandle)
> - return -1;
> - /* Follow it to its node */
> - node = fdt_node_offset_by_phandle(fdt, phandle);
> - if (node) {
> - /* Look up reg */
> - reg = fdt_getprop(fdt, node, "reg", NULL);
> - if (reg) {
> - addr = fdt32_to_cpu(*reg);
> - return addr;
> - }
> - }
> - }
> - }
> - return -1;
> -}
> -
> -#ifdef CONFIG_RESET_PHY_R
> -/* Configure and enable MV88E1116 PHY */
> -void reset_phy(void)
> -{
> - u16 reg;
> - int phyaddr;
> - char *name = "ethernet-controller at 72000";
> - char *eth0_path = "/ocp at f1000000/ethernet-controller at 72000/ethernet0-port at 0";
> -
> - if (miiphy_set_current_dev(name))
> - return;
> -
> - phyaddr = fdt_get_phy_addr(eth0_path);
> - if (phyaddr < 0)
> - return;
> -
> - /*
> - * Enable RGMII delay on Tx and Rx for CPU port
> - * Ref: sec 4.7.2 of chip datasheet
> - */
> - miiphy_write(name, phyaddr, MV88E1116_PGADR_REG, 2);
> - miiphy_read(name, phyaddr, MV88E1116_MAC_CTRL_REG, ®);
> - reg |= (MV88E1116_RGMII_RXTM_CTRL | MV88E1116_RGMII_TXTM_CTRL);
> - miiphy_write(name, phyaddr, MV88E1116_MAC_CTRL_REG, reg);
> - miiphy_write(name, phyaddr, MV88E1116_PGADR_REG, 0);
> -
> - /* reset the phy */
> - miiphy_reset(name, phyaddr);
> -
> - printf("88E1116 Initialized on %s\n", name);
> -}
> -#endif /* CONFIG_RESET_PHY_R */
> -
> #if CONFIG_IS_ENABLED(BOOTSTAGE)
> -#define GREEN_LED (1 << 14)
> -#define ORANGE_LED (1 << 15)
> +#define GREEN_LED BIT(14)
> +#define ORANGE_LED BIT(15)
> #define BOTH_LEDS (GREEN_LED | ORANGE_LED)
> #define NEITHER_LED 0
>
> diff --git a/configs/goflexhome_defconfig b/configs/goflexhome_defconfig
> index ec8b7398d0..e6eb00a938 100644
> --- a/configs/goflexhome_defconfig
> +++ b/configs/goflexhome_defconfig
> @@ -2,6 +2,7 @@ CONFIG_ARM=y
> CONFIG_SKIP_LOWLEVEL_INIT=y
> CONFIG_SYS_DCACHE_OFF=y
> CONFIG_ARCH_CPU_INIT=y
> +CONFIG_SYS_THUMB_BUILD=y
> CONFIG_ARCH_KIRKWOOD=y
> CONFIG_SYS_KWD_CONFIG="board/Seagate/goflexhome/kwbimage.cfg"
> CONFIG_SYS_TEXT_BASE=0x600000
> @@ -47,6 +48,7 @@ CONFIG_SATA_MV=y
> # CONFIG_MMC is not set
> CONFIG_MTD=y
> CONFIG_MTD_RAW_NAND=y
> +CONFIG_PHY_MARVELL=y
> CONFIG_DM_ETH=y
> CONFIG_MVGBE=y
> CONFIG_MII=y
> diff --git a/include/configs/goflexhome.h b/include/configs/goflexhome.h
> index 90e37d9853..c279579268 100644
> --- a/include/configs/goflexhome.h
> +++ b/include/configs/goflexhome.h
> @@ -1,5 +1,6 @@
> /* SPDX-License-Identifier: GPL-2.0+ */
> /*
> + * Copyright (C) 2022 Tony Dinh <mibodhi at gmai.com>
> * Copyright (C) 2013 Suriyan Ramasami <suriyan.r at gmail.com>
> *
> * Based on dockstar.h originally written by
> @@ -14,32 +15,18 @@
> #ifndef _CONFIG_GOFLEXHOME_H
> #define _CONFIG_GOFLEXHOME_H
>
> +#include <linux/bitops.h>
> +
> /*
> * Default GPIO configuration and LED status
> */
> #define GOFLEXHOME_OE_LOW (~(0))
> #define GOFLEXHOME_OE_HIGH (~(0))
> -#define GOFLEXHOME_OE_VAL_LOW (1 << 29) /* USB_PWEN low */
> -#define GOFLEXHOME_OE_VAL_HIGH (1 << 17) /* LED pin high */
> -
> -/* PHY related */
> -#define MV88E1116_LED_FCTRL_REG 10
> -#define MV88E1116_CPRSP_CR3_REG 21
> -#define MV88E1116_MAC_CTRL_REG 21
> -#define MV88E1116_PGADR_REG 22
> -#define MV88E1116_RGMII_TXTM_CTRL (1 << 4)
> -#define MV88E1116_RGMII_RXTM_CTRL (1 << 5)
> +#define GOFLEXHOME_OE_VAL_LOW BIT(29) /* USB_PWEN low */
> +#define GOFLEXHOME_OE_VAL_HIGH BIT(17) /* LED pin high */
>
> #include "mv-common.h"
>
> -/*
> - * Environment variables configurations
> - */
> -/*
> - * max 4k env size is enough, but in case of nand
> - * it has to be rounded to sector size
> - */
> -
> /*
> * Default environment variables
> */
> @@ -47,22 +34,21 @@
> #define CONFIG_EXTRA_ENV_SETTINGS \
> "console=console=ttyS0,115200\0" \
> "mtdids=nand0=orion_nand\0" \
> - "mtdparts="CONFIG_MTDPARTS_DEFAULT \
> + "mtdparts=" CONFIG_MTDPARTS_DEFAULT \
> "kernel=/boot/uImage\0" \
> "bootargs_root=ubi.mtd=root root=ubi0:root rootfstype=ubifs ro\0"
>
> /*
> * Ethernet Driver configuration
> */
> -#ifdef CONFIG_CMD_NET
> #define CONFIG_MVGBE_PORTS {1, 0} /* enable port 0 only */
> #define CONFIG_PHY_BASE_ADR 0
> -#endif /* CONFIG_CMD_NET */
> +#ifdef CONFIG_RESET_PHY_R
> +#undef CONFIG_RESET_PHY_R /* remove legacy reset_phy() */
> +#endif
>
> /* SATA driver configuration */
> -#ifdef CONFIG_SATA
> #define CONFIG_SYS_SATA_MAX_DEVICE 1
> #define CONFIG_LBA48
> -#endif /* CONFIG_SATA */
>
> #endif /* _CONFIG_GOFLEXHOME_H */
> --
> 2.30.2
>
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