diff options
| author | Cyril Chemparathy <cyril@ti.com> | 2010-09-15 10:11:23 -0400 |
|---|---|---|
| committer | Kevin Hilman <khilman@deeprootsystems.com> | 2010-09-24 07:40:30 -0700 |
| commit | 433cdb0ac4c4660e98412e441589a7a712010325 (patch) | |
| tree | 1bb74941f1a4699c4c27d8ad27c6e59ca6f98f96 /arch/arm/mach-omap2/board-am3517evm.c | |
| parent | d22960c8bbb8f685c2d8c4051e1f335ab13dca24 (diff) | |
omap: add mdio platform devices
This patch adds mdio platform devices on SoCs that have the necessary
hardware. Clock lookup entries (aliases) have also been added, so that the
MDIO and EMAC drivers can independently enable/disable a shared underlying
clock. Further, the EMAC MMR region has been split down into separate MDIO
and EMAC regions.
Signed-off-by: Cyril Chemparathy <cyril@ti.com>
Acked-by: David S. Miller <davem@davemloft.net>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Diffstat (limited to 'arch/arm/mach-omap2/board-am3517evm.c')
| -rw-r--r-- | arch/arm/mach-omap2/board-am3517evm.c | 27 |
1 files changed, 26 insertions, 1 deletions
diff --git a/arch/arm/mach-omap2/board-am3517evm.c b/arch/arm/mach-omap2/board-am3517evm.c index 4d0f5859286..5dd1b737644 100644 --- a/arch/arm/mach-omap2/board-am3517evm.c +++ b/arch/arm/mach-omap2/board-am3517evm.c @@ -18,6 +18,7 @@ #include <linux/kernel.h> #include <linux/init.h> +#include <linux/clk.h> #include <linux/platform_device.h> #include <linux/gpio.h> #include <linux/i2c/pca953x.h> @@ -41,6 +42,27 @@ #define AM35XX_EVM_PHY_MASK (0xF) #define AM35XX_EVM_MDIO_FREQUENCY (1000000) +static struct mdio_platform_data am3517_evm_mdio_pdata = { + .bus_freq = AM35XX_EVM_MDIO_FREQUENCY, +}; + +static struct resource am3517_mdio_resources[] = { + { + .start = AM35XX_IPSS_EMAC_BASE + AM35XX_EMAC_MDIO_OFFSET, + .end = AM35XX_IPSS_EMAC_BASE + AM35XX_EMAC_MDIO_OFFSET + + SZ_4K - 1, + .flags = IORESOURCE_MEM, + }, +}; + +static struct platform_device am3517_mdio_device = { + .name = "davinci_mdio", + .id = 0, + .num_resources = ARRAY_SIZE(am3517_mdio_resources), + .resource = am3517_mdio_resources, + .dev.platform_data = &am3517_evm_mdio_pdata, +}; + static struct emac_platform_data am3517_evm_emac_pdata = { .phy_mask = AM35XX_EVM_PHY_MASK, .mdio_max_freq = AM35XX_EVM_MDIO_FREQUENCY, @@ -50,7 +72,7 @@ static struct emac_platform_data am3517_evm_emac_pdata = { static struct resource am3517_emac_resources[] = { { .start = AM35XX_IPSS_EMAC_BASE, - .end = AM35XX_IPSS_EMAC_BASE + 0x3FFFF, + .end = AM35XX_IPSS_EMAC_BASE + 0x2FFFF, .flags = IORESOURCE_MEM, }, { @@ -121,6 +143,9 @@ void am3517_evm_ethernet_init(struct emac_platform_data *pdata) pdata->interrupt_disable = am3517_disable_ethernet_int; am3517_emac_device.dev.platform_data = pdata; platform_device_register(&am3517_emac_device); + platform_device_register(&am3517_mdio_device); + clk_add_alias(NULL, dev_name(&am3517_mdio_device.dev), + NULL, &am3517_emac_device.dev); regval = omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET); regval = regval & (~(AM35XX_CPGMACSS_SW_RST)); |