The current da850evm support in u-boot/master omits any use of the davinci EMAC. This patch adds basic support for the EMAC using the MII PHY found on the baseboard of the EVM. The MAC address is read from the environment variable 'ethadd'. Note that this is different from the da850evm support in the u-boot omapl1 tree where the MAC address is read from SPI flash.
Signed-off-by: Ben Gardiner bengardiner@nanometrics.ca CC: Sandeep Paulraj s-paulraj@ti.com CC: Sudhakar Rajashekhara sudhakar.raj@ti.com CC: Ben Warren biggerbadderben@gmail.com CC: Mike Frysinger vapier@gentoo.org
--- V5: * no changes V4: * make the emac_pins static V3: * rebased to u-boot/next V2: * added SOB * renumbered this patch from 1/1 to 2/2 * just initialize the driver and let eth_initialize() take care of setting the MAC address from the environment variable enetaddr --- board/davinci/da8xxevm/da850evm.c | 50 +++++++++++++++++++++++++++++++++++++ include/configs/da850evm.h | 15 +++++++++++ 2 files changed, 65 insertions(+), 0 deletions(-)
diff --git a/board/davinci/da8xxevm/da850evm.c b/board/davinci/da8xxevm/da850evm.c index eeb456c..c063bbe 100644 --- a/board/davinci/da8xxevm/da850evm.c +++ b/board/davinci/da8xxevm/da850evm.c @@ -23,7 +23,11 @@
#include <common.h> #include <i2c.h> +#include <net.h> +#include <netdev.h> #include <asm/arch/hardware.h> +#include <asm/arch/emif_defs.h> +#include <asm/arch/emac_defs.h> #include <asm/io.h> #include "../common/misc.h" #include "common.h" @@ -48,6 +52,28 @@ static const struct pinmux_config uart_pins[] = { { pinmux(4), 2, 5 } };
+#ifdef CONFIG_DRIVER_TI_EMAC +static const struct pinmux_config emac_pins[] = { + { pinmux(2), 8, 1 }, + { pinmux(2), 8, 2 }, + { pinmux(2), 8, 3 }, + { pinmux(2), 8, 4 }, + { pinmux(2), 8, 5 }, + { pinmux(2), 8, 6 }, + { pinmux(2), 8, 7 }, + { pinmux(3), 8, 0 }, + { pinmux(3), 8, 1 }, + { pinmux(3), 8, 2 }, + { pinmux(3), 8, 3 }, + { pinmux(3), 8, 4 }, + { pinmux(3), 8, 5 }, + { pinmux(3), 8, 6 }, + { pinmux(3), 8, 7 }, + { pinmux(4), 8, 0 }, + { pinmux(4), 8, 1 } +}; +#endif /* CONFIG_DRIVER_TI_EMAC */ + /* I2C pin muxer settings */ static const struct pinmux_config i2c_pins[] = { { pinmux(4), 2, 2 }, @@ -102,6 +128,14 @@ int board_init(void) if (davinci_configure_pin_mux_items(pinmuxes, ARRAY_SIZE(pinmuxes))) return 1;
+#ifdef CONFIG_DRIVER_TI_EMAC + if (davinci_configure_pin_mux(emac_pins, ARRAY_SIZE(emac_pins)) != 0) + return 1; + /* set cfgchip3 to select MII */ + writel(readl(&davinci_syscfg_regs->cfgchip3) & ~(1 << 8), + &davinci_syscfg_regs->cfgchip3); +#endif /* CONFIG_DRIVER_TI_EMAC */ + /* enable the console UART */ writel((DAVINCI_UART_PWREMU_MGMT_FREE | DAVINCI_UART_PWREMU_MGMT_URRST | DAVINCI_UART_PWREMU_MGMT_UTRST), @@ -109,3 +143,19 @@ int board_init(void)
return 0; } + +#ifdef CONFIG_DRIVER_TI_EMAC + +/* + * Initializes on-board ethernet controllers. + */ +int board_eth_init(bd_t *bis) +{ + if (!davinci_emac_initialize()) { + printf("Error: Ethernet init failed!\n"); + return -1; + } + + return 0; +} +#endif /* CONFIG_DRIVER_TI_EMAC */ diff --git a/include/configs/da850evm.h b/include/configs/da850evm.h index d02b196..236aa06 100644 --- a/include/configs/da850evm.h +++ b/include/configs/da850evm.h @@ -26,6 +26,7 @@ /* * Board */ +#define CONFIG_DRIVER_TI_EMAC
/* * SoC Configuration @@ -79,6 +80,20 @@ #define CONFIG_SYS_I2C_SLAVE 10 /* Bogus, master-only in U-Boot */
/* + * Network & Ethernet Configuration + */ +#ifdef CONFIG_DRIVER_TI_EMAC +#define CONFIG_EMAC_MDIO_PHY_NUM 0 +#define CONFIG_MII +#define CONFIG_BOOTP_DEFAULT +#define CONFIG_BOOTP_DNS +#define CONFIG_BOOTP_DNS2 +#define CONFIG_BOOTP_SEND_HOSTNAME +#define CONFIG_NET_RETRY_COUNT 10 +#define CONFIG_NET_MULTI +#endif + +/* * U-Boot general configuration */ #define CONFIG_BOOTFILE "uImage" /* Boot file name */