[PATCH v2 03/11] net: dwc_eth_qos: Fold board_interface_eth_init into STM32 glue code
Patrice CHOTARD
patrice.chotard at foss.st.com
Fri Apr 19 14:05:31 CEST 2024
On 3/26/24 13:07, Marek Vasut wrote:
> Move board_interface_eth_init() into eqos_probe_syscfg_stm32() in STM32
> driver glue code. The eqos_probe_syscfg_stm32() parses STM32 specific DT
> properties of this MAC and configures SYSCFG registers accordingly, there
> is nothing board specific happening in this function, move it into generic
> driver code instead. Drop the now unused duplicates from board files.
>
> Reviewed-by: Patrice Chotard <patrice.chotard at foss.st.com>
> Signed-off-by: Marek Vasut <marex at denx.de>
> ---
> Cc: Christophe Roullier <christophe.roullier at st.com>
> Cc: Joe Hershberger <joe.hershberger at ni.com>
> Cc: Patrice Chotard <patrice.chotard at foss.st.com>
> Cc: Patrick Delaunay <patrick.delaunay at foss.st.com>
> Cc: Ramon Fried <rfried.dev at gmail.com>
> Cc: u-boot at dh-electronics.com
> Cc: uboot-stm32 at st-md-mailman.stormreply.com
> ---
> V2: Add RB from Patrice
> ---
> board/dhelectronics/dh_stm32mp1/board.c | 82 -----------------------
> board/st/stm32mp1/stm32mp1.c | 82 -----------------------
> drivers/net/dwc_eth_qos_stm32.c | 86 ++++++++++++++++++++++++-
> 3 files changed, 84 insertions(+), 166 deletions(-)
>
> diff --git a/board/dhelectronics/dh_stm32mp1/board.c b/board/dhelectronics/dh_stm32mp1/board.c
> index d1f662d9701..f179c857116 100644
> --- a/board/dhelectronics/dh_stm32mp1/board.c
> +++ b/board/dhelectronics/dh_stm32mp1/board.c
> @@ -48,12 +48,10 @@
>
> /* SYSCFG registers */
> #define SYSCFG_BOOTR 0x00
> -#define SYSCFG_PMCSETR 0x04
> #define SYSCFG_IOCTRLSETR 0x18
> #define SYSCFG_ICNR 0x1C
> #define SYSCFG_CMPCR 0x20
> #define SYSCFG_CMPENSETR 0x24
> -#define SYSCFG_PMCCLRR 0x44
>
> #define SYSCFG_BOOTR_BOOT_MASK GENMASK(2, 0)
> #define SYSCFG_BOOTR_BOOTPD_SHIFT 4
> @@ -69,16 +67,6 @@
>
> #define SYSCFG_CMPENSETR_MPU_EN BIT(0)
>
> -#define SYSCFG_PMCSETR_ETH_CLK_SEL BIT(16)
> -#define SYSCFG_PMCSETR_ETH_REF_CLK_SEL BIT(17)
> -
> -#define SYSCFG_PMCSETR_ETH_SELMII BIT(20)
> -
> -#define SYSCFG_PMCSETR_ETH_SEL_MASK GENMASK(23, 21)
> -#define SYSCFG_PMCSETR_ETH_SEL_GMII_MII 0
> -#define SYSCFG_PMCSETR_ETH_SEL_RGMII BIT(21)
> -#define SYSCFG_PMCSETR_ETH_SEL_RMII BIT(23)
> -
> #define KS_CCR 0x08
> #define KS_CCR_EEPROM BIT(9)
> #define KS_BE0 BIT(12)
> @@ -679,76 +667,6 @@ void board_quiesce_devices(void)
> #endif
> }
>
> -/* eth init function : weak called in eqos driver */
> -int board_interface_eth_init(struct udevice *dev,
> - phy_interface_t interface_type)
> -{
> - u8 *syscfg;
> - u32 value;
> - bool eth_clk_sel_reg = false;
> - bool eth_ref_clk_sel_reg = false;
> -
> - /* Gigabit Ethernet 125MHz clock selection. */
> - eth_clk_sel_reg = dev_read_bool(dev, "st,eth-clk-sel");
> -
> - /* Ethernet 50Mhz RMII clock selection */
> - eth_ref_clk_sel_reg =
> - dev_read_bool(dev, "st,eth-ref-clk-sel");
> -
> - syscfg = (u8 *)syscon_get_first_range(STM32MP_SYSCON_SYSCFG);
> -
> - if (!syscfg)
> - return -ENODEV;
> -
> - switch (interface_type) {
> - case PHY_INTERFACE_MODE_MII:
> - value = SYSCFG_PMCSETR_ETH_SEL_GMII_MII |
> - SYSCFG_PMCSETR_ETH_REF_CLK_SEL;
> - debug("%s: PHY_INTERFACE_MODE_MII\n", __func__);
> - break;
> - case PHY_INTERFACE_MODE_GMII:
> - if (eth_clk_sel_reg)
> - value = SYSCFG_PMCSETR_ETH_SEL_GMII_MII |
> - SYSCFG_PMCSETR_ETH_CLK_SEL;
> - else
> - value = SYSCFG_PMCSETR_ETH_SEL_GMII_MII;
> - debug("%s: PHY_INTERFACE_MODE_GMII\n", __func__);
> - break;
> - case PHY_INTERFACE_MODE_RMII:
> - if (eth_ref_clk_sel_reg)
> - value = SYSCFG_PMCSETR_ETH_SEL_RMII |
> - SYSCFG_PMCSETR_ETH_REF_CLK_SEL;
> - else
> - value = SYSCFG_PMCSETR_ETH_SEL_RMII;
> - debug("%s: PHY_INTERFACE_MODE_RMII\n", __func__);
> - break;
> - case PHY_INTERFACE_MODE_RGMII:
> - case PHY_INTERFACE_MODE_RGMII_ID:
> - case PHY_INTERFACE_MODE_RGMII_RXID:
> - case PHY_INTERFACE_MODE_RGMII_TXID:
> - if (eth_clk_sel_reg)
> - value = SYSCFG_PMCSETR_ETH_SEL_RGMII |
> - SYSCFG_PMCSETR_ETH_CLK_SEL;
> - else
> - value = SYSCFG_PMCSETR_ETH_SEL_RGMII;
> - debug("%s: PHY_INTERFACE_MODE_RGMII\n", __func__);
> - break;
> - default:
> - debug("%s: Do not manage %d interface\n",
> - __func__, interface_type);
> - /* Do not manage others interfaces */
> - return -EINVAL;
> - }
> -
> - /* clear and set ETH configuration bits */
> - writel(SYSCFG_PMCSETR_ETH_SEL_MASK | SYSCFG_PMCSETR_ETH_SELMII |
> - SYSCFG_PMCSETR_ETH_REF_CLK_SEL | SYSCFG_PMCSETR_ETH_CLK_SEL,
> - syscfg + SYSCFG_PMCCLRR);
> - writel(value, syscfg + SYSCFG_PMCSETR);
> -
> - return 0;
> -}
> -
> #if defined(CONFIG_OF_BOARD_SETUP)
> int ft_board_setup(void *blob, struct bd_info *bd)
> {
> diff --git a/board/st/stm32mp1/stm32mp1.c b/board/st/stm32mp1/stm32mp1.c
> index a17c314daeb..f284b0dfd28 100644
> --- a/board/st/stm32mp1/stm32mp1.c
> +++ b/board/st/stm32mp1/stm32mp1.c
> @@ -52,12 +52,10 @@
>
> /* SYSCFG registers */
> #define SYSCFG_BOOTR 0x00
> -#define SYSCFG_PMCSETR 0x04
> #define SYSCFG_IOCTRLSETR 0x18
> #define SYSCFG_ICNR 0x1C
> #define SYSCFG_CMPCR 0x20
> #define SYSCFG_CMPENSETR 0x24
> -#define SYSCFG_PMCCLRR 0x44
>
> #define SYSCFG_BOOTR_BOOT_MASK GENMASK(2, 0)
> #define SYSCFG_BOOTR_BOOTPD_SHIFT 4
> @@ -73,16 +71,6 @@
>
> #define SYSCFG_CMPENSETR_MPU_EN BIT(0)
>
> -#define SYSCFG_PMCSETR_ETH_CLK_SEL BIT(16)
> -#define SYSCFG_PMCSETR_ETH_REF_CLK_SEL BIT(17)
> -
> -#define SYSCFG_PMCSETR_ETH_SELMII BIT(20)
> -
> -#define SYSCFG_PMCSETR_ETH_SEL_MASK GENMASK(23, 21)
> -#define SYSCFG_PMCSETR_ETH_SEL_GMII_MII 0
> -#define SYSCFG_PMCSETR_ETH_SEL_RGMII BIT(21)
> -#define SYSCFG_PMCSETR_ETH_SEL_RMII BIT(23)
> -
> #define USB_LOW_THRESHOLD_UV 200000
> #define USB_WARNING_LOW_THRESHOLD_UV 660000
> #define USB_START_LOW_THRESHOLD_UV 1230000
> @@ -742,76 +730,6 @@ void board_quiesce_devices(void)
> setup_led(LEDST_OFF);
> }
>
> -/* eth init function : weak called in eqos driver */
> -int board_interface_eth_init(struct udevice *dev,
> - phy_interface_t interface_type)
> -{
> - u8 *syscfg;
> - u32 value;
> - bool eth_clk_sel_reg = false;
> - bool eth_ref_clk_sel_reg = false;
> -
> - /* Gigabit Ethernet 125MHz clock selection. */
> - eth_clk_sel_reg = dev_read_bool(dev, "st,eth-clk-sel");
> -
> - /* Ethernet 50Mhz RMII clock selection */
> - eth_ref_clk_sel_reg =
> - dev_read_bool(dev, "st,eth-ref-clk-sel");
> -
> - syscfg = (u8 *)syscon_get_first_range(STM32MP_SYSCON_SYSCFG);
> -
> - if (!syscfg)
> - return -ENODEV;
> -
> - switch (interface_type) {
> - case PHY_INTERFACE_MODE_MII:
> - value = SYSCFG_PMCSETR_ETH_SEL_GMII_MII |
> - SYSCFG_PMCSETR_ETH_REF_CLK_SEL;
> - log_debug("PHY_INTERFACE_MODE_MII\n");
> - break;
> - case PHY_INTERFACE_MODE_GMII:
> - if (eth_clk_sel_reg)
> - value = SYSCFG_PMCSETR_ETH_SEL_GMII_MII |
> - SYSCFG_PMCSETR_ETH_CLK_SEL;
> - else
> - value = SYSCFG_PMCSETR_ETH_SEL_GMII_MII;
> - log_debug("PHY_INTERFACE_MODE_GMII\n");
> - break;
> - case PHY_INTERFACE_MODE_RMII:
> - if (eth_ref_clk_sel_reg)
> - value = SYSCFG_PMCSETR_ETH_SEL_RMII |
> - SYSCFG_PMCSETR_ETH_REF_CLK_SEL;
> - else
> - value = SYSCFG_PMCSETR_ETH_SEL_RMII;
> - log_debug("PHY_INTERFACE_MODE_RMII\n");
> - break;
> - case PHY_INTERFACE_MODE_RGMII:
> - case PHY_INTERFACE_MODE_RGMII_ID:
> - case PHY_INTERFACE_MODE_RGMII_RXID:
> - case PHY_INTERFACE_MODE_RGMII_TXID:
> - if (eth_clk_sel_reg)
> - value = SYSCFG_PMCSETR_ETH_SEL_RGMII |
> - SYSCFG_PMCSETR_ETH_CLK_SEL;
> - else
> - value = SYSCFG_PMCSETR_ETH_SEL_RGMII;
> - log_debug("PHY_INTERFACE_MODE_RGMII\n");
> - break;
> - default:
> - log_debug("Do not manage %d interface\n",
> - interface_type);
> - /* Do not manage others interfaces */
> - return -EINVAL;
> - }
> -
> - /* clear and set ETH configuration bits */
> - writel(SYSCFG_PMCSETR_ETH_SEL_MASK | SYSCFG_PMCSETR_ETH_SELMII |
> - SYSCFG_PMCSETR_ETH_REF_CLK_SEL | SYSCFG_PMCSETR_ETH_CLK_SEL,
> - syscfg + SYSCFG_PMCCLRR);
> - writel(value, syscfg + SYSCFG_PMCSETR);
> -
> - return 0;
> -}
> -
> enum env_location env_get_location(enum env_operation op, int prio)
> {
> u32 bootmode = get_bootmode();
> diff --git a/drivers/net/dwc_eth_qos_stm32.c b/drivers/net/dwc_eth_qos_stm32.c
> index fd29a604987..7520a136ed0 100644
> --- a/drivers/net/dwc_eth_qos_stm32.c
> +++ b/drivers/net/dwc_eth_qos_stm32.c
> @@ -24,11 +24,26 @@
> #include <netdev.h>
> #include <phy.h>
> #include <reset.h>
> +#include <syscon.h>
> #include <wait_bit.h>
> #include <linux/delay.h>
>
> #include "dwc_eth_qos.h"
>
> +/* SYSCFG registers */
> +#define SYSCFG_PMCSETR 0x04
> +#define SYSCFG_PMCCLRR 0x44
> +
> +#define SYSCFG_PMCSETR_ETH_CLK_SEL BIT(16)
> +#define SYSCFG_PMCSETR_ETH_REF_CLK_SEL BIT(17)
> +
> +#define SYSCFG_PMCSETR_ETH_SELMII BIT(20)
> +
> +#define SYSCFG_PMCSETR_ETH_SEL_MASK GENMASK(23, 21)
> +#define SYSCFG_PMCSETR_ETH_SEL_GMII_MII 0
> +#define SYSCFG_PMCSETR_ETH_SEL_RGMII BIT(21)
> +#define SYSCFG_PMCSETR_ETH_SEL_RMII BIT(23)
> +
> static ulong eqos_get_tick_clk_rate_stm32(struct udevice *dev)
> {
> #ifdef CONFIG_CLK
> @@ -108,11 +123,78 @@ static int eqos_stop_clks_stm32(struct udevice *dev)
> return 0;
> }
>
> +static int eqos_probe_syscfg_stm32(struct udevice *dev,
> + phy_interface_t interface_type)
> +{
> + bool eth_ref_clk_sel_reg = false;
> + bool eth_clk_sel_reg = false;
> + u8 *syscfg;
> + u32 value;
> +
> + /* Gigabit Ethernet 125MHz clock selection. */
> + eth_clk_sel_reg = dev_read_bool(dev, "st,eth-clk-sel");
> +
> + /* Ethernet 50Mhz RMII clock selection */
> + eth_ref_clk_sel_reg = dev_read_bool(dev, "st,eth-ref-clk-sel");
> +
> + syscfg = (u8 *)syscon_get_first_range(STM32MP_SYSCON_SYSCFG);
> + if (!syscfg)
> + return -ENODEV;
> +
> + switch (interface_type) {
> + case PHY_INTERFACE_MODE_MII:
> + value = SYSCFG_PMCSETR_ETH_SEL_GMII_MII |
> + SYSCFG_PMCSETR_ETH_REF_CLK_SEL;
> + log_debug("PHY_INTERFACE_MODE_MII\n");
> + break;
> + case PHY_INTERFACE_MODE_GMII:
> + if (eth_clk_sel_reg)
> + value = SYSCFG_PMCSETR_ETH_SEL_GMII_MII |
> + SYSCFG_PMCSETR_ETH_CLK_SEL;
> + else
> + value = SYSCFG_PMCSETR_ETH_SEL_GMII_MII;
> + log_debug("PHY_INTERFACE_MODE_GMII\n");
> + break;
> + case PHY_INTERFACE_MODE_RMII:
> + if (eth_ref_clk_sel_reg)
> + value = SYSCFG_PMCSETR_ETH_SEL_RMII |
> + SYSCFG_PMCSETR_ETH_REF_CLK_SEL;
> + else
> + value = SYSCFG_PMCSETR_ETH_SEL_RMII;
> + log_debug("PHY_INTERFACE_MODE_RMII\n");
> + break;
> + case PHY_INTERFACE_MODE_RGMII:
> + case PHY_INTERFACE_MODE_RGMII_ID:
> + case PHY_INTERFACE_MODE_RGMII_RXID:
> + case PHY_INTERFACE_MODE_RGMII_TXID:
> + if (eth_clk_sel_reg)
> + value = SYSCFG_PMCSETR_ETH_SEL_RGMII |
> + SYSCFG_PMCSETR_ETH_CLK_SEL;
> + else
> + value = SYSCFG_PMCSETR_ETH_SEL_RGMII;
> + log_debug("PHY_INTERFACE_MODE_RGMII\n");
> + break;
> + default:
> + log_debug("Do not manage %d interface\n",
> + interface_type);
> + /* Do not manage others interfaces */
> + return -EINVAL;
> + }
> +
> + /* clear and set ETH configuration bits */
> + writel(SYSCFG_PMCSETR_ETH_SEL_MASK | SYSCFG_PMCSETR_ETH_SELMII |
> + SYSCFG_PMCSETR_ETH_REF_CLK_SEL | SYSCFG_PMCSETR_ETH_CLK_SEL,
> + syscfg + SYSCFG_PMCCLRR);
> + writel(value, syscfg + SYSCFG_PMCSETR);
> +
> + return 0;
> +}
> +
> static int eqos_probe_resources_stm32(struct udevice *dev)
> {
> struct eqos_priv *eqos = dev_get_priv(dev);
> - int ret;
> phy_interface_t interface;
> + int ret;
>
> debug("%s(dev=%p):\n", __func__, dev);
>
> @@ -123,7 +205,7 @@ static int eqos_probe_resources_stm32(struct udevice *dev)
> return -EINVAL;
> }
>
> - ret = board_interface_eth_init(dev, interface);
> + ret = eqos_probe_syscfg_stm32(dev, interface);
> if (ret)
> return -EINVAL;
>
Applied on u-boot-stm32/master
More information about the U-Boot
mailing list