From: Markus Niebel Markus.Niebel@tq-group.com
Add RGMII ethernet using micrel KSZ9031 phy to mba6 mainboard for TQMa6<x> module. The phy needs special configurateions for the pad skew registers to adjust for the signal routing.
Also support for standard ethernet commands and uppdate via tftp is supported.
Signed-off-by: Markus Niebel Markus.Niebel@tq-group.com --- - changes for v2: - add missing stuff for tftp and nfs in CONFIG_EXTRA_ENV_SETTINGS - fix fdt_file in env (was partially fdt)
board/tqc/tqma6/tqma6_mba6.c | 158 ++++++++++++++++++++++++++++++++++++++++++ include/configs/tqma6.h | 94 ++++++++++++++++++++++++- 2 files changed, 251 insertions(+), 1 deletion(-)
diff --git a/board/tqc/tqma6/tqma6_mba6.c b/board/tqc/tqma6/tqma6_mba6.c index 8679db8..c30f379 100644 --- a/board/tqc/tqma6/tqma6_mba6.c +++ b/board/tqc/tqma6/tqma6_mba6.c @@ -20,7 +20,11 @@ #include <common.h> #include <fsl_esdhc.h> #include <libfdt.h> +#include <malloc.h> +#include <micrel.h> +#include <miiphy.h> #include <mmc.h> +#include <netdev.h>
#include "tqma6_bb.h"
@@ -41,6 +45,87 @@ DECLARE_GLOBAL_DATA_PTR; #define GPIO_IN_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_LOW | \ PAD_CTL_DSE_40ohm | PAD_CTL_HYS)
+#if defined(CONFIG_MX6Q) + +#define IOMUX_SW_PAD_CTRL_GRP_DDR_TYPE_RGMII 0x02e0790 +#define IOMUX_SW_PAD_CTRL_GRP_RGMII_TERM 0x02e07ac + +#elif defined(CONFIG_MX6S) + +#define IOMUX_SW_PAD_CTRL_GRP_DDR_TYPE_RGMII 0x02e0768 +#define IOMUX_SW_PAD_CTRL_GRP_RGMII_TERM 0x02e0788 + +#else + +#error "need to define target CPU" + +#endif + +#define ENET_RX_PAD_CTRL (PAD_CTL_DSE_34ohm) +#define ENET_TX_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_DSE_34ohm) +#define ENET_CLK_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_HIGH | \ + PAD_CTL_DSE_34ohm) +#define ENET_MDIO_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \ + PAD_CTL_DSE_60ohm) + +/* disable on die termination for RGMII */ +#define IOMUX_SW_PAD_CTRL_GRP_RGMII_TERM_DISABLE 0x00000000 +/* optimised drive strength for 1.0 .. 1.3 V signal on RGMII */ +#define IOMUX_SW_PAD_CTRL_GRP_DDR_TYPE_RGMII_1P2V 0x00080000 +/* optimised drive strength for 1.3 .. 2.5 V signal on RGMII */ +#define IOMUX_SW_PAD_CTRL_GRP_DDR_TYPE_RGMII_1P5V 0x000C0000 + +#define ENET_PHY_RESET_GPIO IMX_GPIO_NR(1, 25) + +static iomux_v3_cfg_t const mba6_enet_pads[] = { + NEW_PAD_CTRL(MX6_PAD_ENET_MDIO__ENET_MDIO, ENET_MDIO_PAD_CTRL), + NEW_PAD_CTRL(MX6_PAD_ENET_MDC__ENET_MDC, ENET_MDIO_PAD_CTRL), + + NEW_PAD_CTRL(MX6_PAD_RGMII_TXC__RGMII_TXC, ENET_TX_PAD_CTRL), + NEW_PAD_CTRL(MX6_PAD_RGMII_TD0__RGMII_TD0, ENET_TX_PAD_CTRL), + NEW_PAD_CTRL(MX6_PAD_RGMII_TD1__RGMII_TD1, ENET_TX_PAD_CTRL), + NEW_PAD_CTRL(MX6_PAD_RGMII_TD2__RGMII_TD2, ENET_TX_PAD_CTRL), + NEW_PAD_CTRL(MX6_PAD_RGMII_TD3__RGMII_TD3, ENET_TX_PAD_CTRL), + NEW_PAD_CTRL(MX6_PAD_RGMII_TX_CTL__RGMII_TX_CTL, ENET_TX_PAD_CTRL), + + NEW_PAD_CTRL(MX6_PAD_ENET_REF_CLK__ENET_TX_CLK, ENET_CLK_PAD_CTRL), + /* + * these pins are also used for config strapping by phy + */ + NEW_PAD_CTRL(MX6_PAD_RGMII_RD0__RGMII_RD0, ENET_RX_PAD_CTRL), + NEW_PAD_CTRL(MX6_PAD_RGMII_RD1__RGMII_RD1, ENET_RX_PAD_CTRL), + NEW_PAD_CTRL(MX6_PAD_RGMII_RD2__RGMII_RD2, ENET_RX_PAD_CTRL), + NEW_PAD_CTRL(MX6_PAD_RGMII_RD3__RGMII_RD3, ENET_RX_PAD_CTRL), + NEW_PAD_CTRL(MX6_PAD_RGMII_RXC__RGMII_RXC, ENET_RX_PAD_CTRL), + NEW_PAD_CTRL(MX6_PAD_RGMII_RX_CTL__RGMII_RX_CTL, ENET_RX_PAD_CTRL), + /* KSZ9031 PHY Reset */ + NEW_PAD_CTRL(MX6_PAD_ENET_CRS_DV__GPIO1_IO25, GPIO_OUT_PAD_CTRL), +}; + +static void mba6_setup_iomuxc_enet(void) +{ + __raw_writel(IOMUX_SW_PAD_CTRL_GRP_RGMII_TERM_DISABLE, + (void *)IOMUX_SW_PAD_CTRL_GRP_RGMII_TERM); + __raw_writel(IOMUX_SW_PAD_CTRL_GRP_DDR_TYPE_RGMII_1P5V, + (void *)IOMUX_SW_PAD_CTRL_GRP_DDR_TYPE_RGMII); + + imx_iomux_v3_setup_multiple_pads(mba6_enet_pads, + ARRAY_SIZE(mba6_enet_pads)); + + /* Reset PHY */ + gpio_direction_output(ENET_PHY_RESET_GPIO , 0); + /* Need delay 10ms after power on according to KSZ9031 spec */ + udelay(1000 * 10); + gpio_set_value(ENET_PHY_RESET_GPIO, 1); + /* + * KSZ9031 manual: 100 usec wait time after reset before communication + * over MDIO + * BUGBUG: hardware has an RC const that needs > 10 msec from 0->1 on + * reset before the phy sees a high level + */ + udelay(200); +} + static iomux_v3_cfg_t const mba6_uart2_pads[] = { NEW_PAD_CTRL(MX6_PAD_SD4_DAT4__UART2_RX_DATA, UART_PAD_CTRL), NEW_PAD_CTRL(MX6_PAD_SD4_DAT7__UART2_TX_DATA, UART_PAD_CTRL), @@ -115,6 +200,76 @@ int tqma6_bb_board_mmc_init(bd_t *bis) return 0; }
+int board_phy_config(struct phy_device *phydev) +{ +#if defined(CONFIG_MX6Q) +#define MBA6X_KSZ9031_CTRL_SKEW 0x0032 +#define MBA6X_KSZ9031_CLK_SKEW 0x03ff +#define MBA6X_KSZ9031_RX_SKEW 0x3333 +#define MBA6X_KSZ9031_TX_SKEW 0x2036 +#elif defined(CONFIG_MX6S) +#define MBA6X_KSZ9031_CTRL_SKEW 0x0030 +#define MBA6X_KSZ9031_CLK_SKEW 0x03ff +#define MBA6X_KSZ9031_RX_SKEW 0x3333 +#define MBA6X_KSZ9031_TX_SKEW 0x2052 +#else +#error +#endif + /* min rx/tx ctrl delay */ + ksz9031_phy_extended_write(phydev, 2, + MII_KSZ9031_EXT_RGMII_CTRL_SIG_SKEW, + MII_KSZ9031_MOD_DATA_NO_POST_INC, + MBA6X_KSZ9031_CTRL_SKEW); + /* min rx delay */ + ksz9031_phy_extended_write(phydev, 2, + MII_KSZ9031_EXT_RGMII_RX_DATA_SKEW, + MII_KSZ9031_MOD_DATA_NO_POST_INC, + MBA6X_KSZ9031_RX_SKEW); + /* max tx delay */ + ksz9031_phy_extended_write(phydev, 2, + MII_KSZ9031_EXT_RGMII_TX_DATA_SKEW, + MII_KSZ9031_MOD_DATA_NO_POST_INC, + MBA6X_KSZ9031_TX_SKEW); + /* rx/tx clk skew */ + ksz9031_phy_extended_write(phydev, 2, + MII_KSZ9031_EXT_RGMII_CLOCK_SKEW, + MII_KSZ9031_MOD_DATA_NO_POST_INC, + MBA6X_KSZ9031_CLK_SKEW); + + phydev->drv->config(phydev); + + return 0; +} + +int board_eth_init(bd_t *bis) +{ + uint32_t base = IMX_FEC_BASE; + struct mii_dev *bus = NULL; + struct phy_device *phydev = NULL; + int ret; + + bus = fec_get_miibus(base, -1); + if (!bus) + return 0; + /* scan phy */ + phydev = phy_find_by_mask(bus, (0xf << CONFIG_FEC_MXC_PHYADDR), + PHY_INTERFACE_MODE_RGMII); + + if (!phydev) { + free(bus); + printf("No phy found\n"); + return 0; + } + ret = fec_probe(bis, -1, base, bus, phydev); + if (ret) { + printf("FEC MXC: %s:failed\n", __func__); + free(phydev); + free(bus); + } + + return 0; +} + int tqma6_bb_board_early_init_f(void) { mba6_setup_iomuxc_uart(); @@ -124,6 +279,9 @@ int tqma6_bb_board_early_init_f(void)
int tqma6_bb_board_init(void) { + /* do it here - to have reset completed */ + mba6_setup_iomuxc_enet(); + return 0; }
diff --git a/include/configs/tqma6.h b/include/configs/tqma6.h index 4a2eaa2..055675e 100644 --- a/include/configs/tqma6.h +++ b/include/configs/tqma6.h @@ -65,6 +65,37 @@ #define CONFIG_CMD_FAT #define CONFIG_DOS_PARTITION
+#define CONFIG_CMD_PING +#define CONFIG_CMD_DHCP +#define CONFIG_CMD_MII +#define CONFIG_CMD_NET + +#define CONFIG_FEC_MXC +#define IMX_FEC_BASE ENET_BASE_ADDR +#define CONFIG_PHYLIB +#define CONFIG_MII + +#if defined(CONFIG_MBA6) + +#define CONFIG_FEC_XCV_TYPE RGMII +#define CONFIG_ETHPRIME "FEC" + +#define CONFIG_FEC_MXC_PHYADDR 0x03 +#define CONFIG_PHY_MICREL +#define CONFIG_PHY_KSZ9031 + +#else + +#error "define PHY to use for your baseboard" + +#endif + +#define CONFIG_ARP_TIMEOUT 200UL +/* Network config - Allow larger/faster download for TFTP/NFS */ +#define CONFIG_IP_DEFRAG +#define CONFIG_TFTP_BLOCKSIZE 4096 +#define CONFIG_NFS_READ_SIZE 4096 + #if defined(CONFIG_MBA6)
#define CONFIG_MXC_UART_BASE UART2_BASE @@ -128,9 +159,43 @@ "mmc read ${loadaddr} ${kernel_start} ${kernel_size};\0" \ "loadfdt=mmc dev ${mmcdev}; " \ "mmc read ${fdt_addr} ${fdt_start} ${fdt_size};\0" \ + "update_uboot=if tftp ${uboot}; then " \ + "if itest ${filesize} > 0; then " \ + "mmc dev ${mmcdev}; mmc rescan; " \ + "setexpr blkc ${filesize} / 0x200; " \ + "setexpr blkc ${blkc} + 1; " \ + "if itest ${blkc} <= ${uboot_size}; then " \ + "mmc write ${loadaddr} ${uboot_start} " \ + "${blkc}; " \ + "fi; " \ + "fi; fi; " \ + "setenv filesize; setenv blkc \0" \ + "update_kernel=run kernel_name; " \ + "if tftp ${kernel}; then " \ + "if itest ${filesize} > 0; then " \ + "mmc dev ${mmcdev}; mmc rescan; " \ + "setexpr blkc ${filesize} / 0x200; " \ + "setexpr blkc ${blkc} + 1; " \ + "if itest ${blkc} <= ${kernel_size}; then " \ + "mmc write ${loadaddr} " \ + "${kernel_start} ${blkc}; " \ + "fi; " \ + "fi; " \ + "fi; " \ + "setenv filesize; setenv blkc \0" \ + "update_fdt=if tftp ${fdt_file}; then " \ + "if itest ${filesize} > 0; then " \ + "mmc dev ${mmcdev}; mmc rescan; " \ + "setexpr blkc ${filesize} / 0x200; " \ + "setexpr blkc ${blkc} + 1; " \ + "if itest ${blkc} <= ${fdt_size}; then " \ + "mmc write ${loadaddr} ${fdt_start} ${blkc}; " \ + "fi; " \ + "fi; fi; " \ + "setenv filesize; setenv blkc \0" \
#define CONFIG_BOOTCOMMAND \ - "run mmcboot; run panicboot" + "run mmcboot; run netboot; run panicboot"
#else
@@ -174,6 +239,33 @@ "${boot_type}; " \ "fi;\0" \ "setenv bootargs \0" \ + "netdev=eth0\0" \ + "nfsroot=/srv/nfs/tqma6\0" \ + "ipmode=static\0" \ + "netargs=run addnfs addip addtty addfb\0" \ + "addnfs=setenv bootargs ${bootargs} " \ + "root=/dev/nfs rw " \ + "nfsroot=${serverip}:${nfsroot},v3,tcp;\0" \ + "addip_static=setenv bootargs ${bootargs} " \ + "ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:" \ + "${hostname}:${netdev}:off\0" \ + "addip_dynamic=setenv bootargs ${bootargs} ip=dhcp\0" \ + "addip=if test "${ipmode}" != static; then " \ + "run addip_dynamic; else run addip_static; fi\0" \ + "set_getcmd=if test "${ipmode}" != static; then " \ + "setenv getcmd dhcp; setenv autoload yes; " \ + "else setenv getcmd tftp; setenv autoload no; fi\0" \ + "netboot=echo Booting from net ...; " \ + "run kernel_name; " \ + "run set_getcmd; " \ + "setenv bootargs; " \ + "run netargs; " \ + "if ${getcmd} ${kernel}; then " \ + "if ${getcmd} ${fdt_addr} ${fdt_file}; then " \ + "${boot_type} ${loadaddr} - ${fdt_addr}; " \ + "fi; " \ + "fi; " \ + "echo ... failed\0" \ "panicboot=echo No boot device !!! reset\0" \ CONFIG_EXTRA_BOOTDEV_ENV_SETTINGS \