diff options
| author | Sekhar Nori <nsekhar@ti.com> | 2009-10-21 15:48:24 (GMT) |
|---|---|---|
| committer | Kevin Hilman <khilman@deeprootsystems.com> | 2009-11-25 18:21:36 (GMT) |
| commit | 17fadd9a5edfeef15ea0e06822a25cc073d9ee02 (patch) | |
| tree | 3248df919cadac7654900a4083765d447b1d0e86 /arch | |
| parent | 797d799ed09bbbfd13f684756bccafbbd44ffcd0 (diff) | |
| download | linux-17fadd9a5edfeef15ea0e06822a25cc073d9ee02.tar.xz | |
davinci: DA850/OMAP-L138 EVM: simplify configuration of emac in MII/RMII mode
There are multiple steps in configuring the EMAC to MII or RMII mode.
Current code implements them using multiple checks.
Consolidate the multiple checks into a single if construct.
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mach-davinci/board-da850-evm.c | 35 |
1 files changed, 15 insertions, 20 deletions
diff --git a/arch/arm/mach-davinci/board-da850-evm.c b/arch/arm/mach-davinci/board-da850-evm.c index fd6f780..d0e3178 100644 --- a/arch/arm/mach-davinci/board-da850-evm.c +++ b/arch/arm/mach-davinci/board-da850-evm.c @@ -535,23 +535,27 @@ static int __init da850_evm_config_emac(void) cfg_chip3_base = DA8XX_SYSCFG_VIRT(DA8XX_CFGCHIP3_REG); - /* configure the CFGCHIP3 register for RMII or MII */ val = __raw_readl(cfg_chip3_base); - if (rmii_en) + + if (rmii_en) { val |= BIT(8); - else + ret = da8xx_pinmux_setup(da850_rmii_pins); + pr_info("EMAC: RMII PHY configured, MII PHY will not be" + " functional\n"); + } else { val &= ~BIT(8); - - __raw_writel(val, cfg_chip3_base); - - if (!rmii_en) ret = da8xx_pinmux_setup(da850_cpgmac_pins); - else - ret = da8xx_pinmux_setup(da850_rmii_pins); + pr_info("EMAC: MII PHY configured, RMII PHY will not be" + " functional\n"); + } + if (ret) pr_warning("da850_evm_init: cpgmac/rmii mux setup failed: %d\n", ret); + /* configure the CFGCHIP3 register for RMII or MII */ + __raw_writel(val, cfg_chip3_base); + ret = davinci_cfg_reg(DA850_GPIO2_6); if (ret) pr_warning("da850_evm_init:GPIO(2,6) mux setup " @@ -564,17 +568,8 @@ static int __init da850_evm_config_emac(void) return ret; } - if (rmii_en) { - /* Disable MII MDIO clock */ - gpio_direction_output(DA850_MII_MDIO_CLKEN_PIN, 1); - pr_info("EMAC: RMII PHY configured, MII PHY will not be" - " functional\n"); - } else { - /* Enable MII MDIO clock */ - gpio_direction_output(DA850_MII_MDIO_CLKEN_PIN, 0); - pr_info("EMAC: MII PHY configured, RMII PHY will not be" - " functional\n"); - } + /* Enable/Disable MII MDIO clock */ + gpio_direction_output(DA850_MII_MDIO_CLKEN_PIN, rmii_en); soc_info->emac_pdata->phy_mask = DA850_EVM_PHY_MASK; soc_info->emac_pdata->mdio_max_freq = DA850_EVM_MDIO_FREQUENCY; |