From: Victor Rodriguez <[email protected]> This patch adds EMAC support for the Hawkboard-L138 system It is under the machine name "omapl138_hawkboard". This system is based on the da850 davinci CPU architecture.
Signed-off-by: Victor Rodriguez <[email protected]> --- arch/arm/mach-davinci/board-omapl138-hawk.c | 49 +++++++++++++++++++++++++++ 1 files changed, 49 insertions(+), 0 deletions(-) diff --git a/arch/arm/mach-davinci/board-omapl138-hawk.c b/arch/arm/mach-davinci/board-omapl138-hawk.c index c472dd8..fd1f458 100644 --- a/arch/arm/mach-davinci/board-omapl138-hawk.c +++ b/arch/arm/mach-davinci/board-omapl138-hawk.c @@ -19,6 +19,55 @@ #include <mach/cp_intc.h> #include <mach/da8xx.h> +#include <mach/mux.h> + +#define DA850_EVM_PHY_ID "0:07" + +static const short hawk_mii_pins[] = { + DA850_MII_TXEN, DA850_MII_TXCLK, DA850_MII_COL, DA850_MII_TXD_3, + DA850_MII_TXD_2, DA850_MII_TXD_1, DA850_MII_TXD_0, DA850_MII_RXER, + DA850_MII_CRS, DA850_MII_RXCLK, DA850_MII_RXDV, DA850_MII_RXD_3, + DA850_MII_RXD_2, DA850_MII_RXD_1, DA850_MII_RXD_0, DA850_MDIO_CLK, + DA850_MDIO_D, + -1 +}; + +static int __init omapl138_hawk_config_emac(void) +{ + void __iomem *cfg_chip3_base; + int ret; + u32 val; + struct davinci_soc_info *soc_info = &davinci_soc_info; + + if (!machine_is_omapl138_hawkboard()) + return 0; + + cfg_chip3_base = DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP3_REG); + + val = __raw_readl(cfg_chip3_base); + + val &= ~BIT(8); + ret = davinci_cfg_reg_list(hawk_mii_pins); + pr_info("EMAC: MII PHY configured, RMII PHY will not be" + " functional\n"); + + if (ret) + pr_warning("hawk_init: cpgmac/rmii mux setup failed: %d\n", + ret); + + /* configure the CFGCHIP3 register for MII */ + __raw_writel(val, cfg_chip3_base); + + /* Enable/Disable MII MDIO clock */ + soc_info->emac_pdata->phy_id = DA850_EVM_PHY_ID; + + ret = da8xx_register_emac(); + if (ret) + pr_warning("hawk_init: emac registration failed: %d\n", + ret); + return 0; +} +device_initcall(omapl138_hawk_config_emac); static struct davinci_uart_config omapl138_hawk_uart_config __initdata = { .enabled_uarts = 0x7, -- 1.6.0.5 _______________________________________________ Davinci-linux-open-source mailing list [email protected] http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source
