diff options
| author | Sriram <srk@ti.com> | 2010-05-11 01:29:17 +0400 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2010-05-20 21:53:55 +0400 |
| commit | 56881d28b2eed78665daa1d680014e9ebaf8c0e3 (patch) | |
| tree | a55628721b89bb980c37e3e2dc9ef4c3ebe526ec /arch/arm | |
| parent | 39e799df2f504a160852342109d228abfe75fede (diff) | |
| download | linux-56881d28b2eed78665daa1d680014e9ebaf8c0e3.tar.xz | |
AM35xx: Platform specific hookup for EMAC module
Modified AM35xx EVM init sequence to handle EMAC
initialization.
Signed-off-by: Sriramakrishnan <srk@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/mach-omap2/board-am3517evm.c | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/board-am3517evm.c b/arch/arm/mach-omap2/board-am3517evm.c index 6ca0075026ff..02e209743e1f 100644 --- a/arch/arm/mach-omap2/board-am3517evm.c +++ b/arch/arm/mach-omap2/board-am3517evm.c @@ -22,6 +22,7 @@ #include <linux/gpio.h> #include <linux/i2c/pca953x.h> #include <linux/can/platform/ti_hecc.h> +#include <linux/davinci_emac.h> #include <mach/hardware.h> #include <mach/am35xx.h> @@ -31,11 +32,106 @@ #include <plat/board.h> #include <plat/common.h> +#include <plat/control.h> #include <plat/usb.h> #include <plat/display.h> #include "mux.h" +#define AM35XX_EVM_PHY_MASK (0xF) +#define AM35XX_EVM_MDIO_FREQUENCY (1000000) + +static struct emac_platform_data am3517_evm_emac_pdata = { + .phy_mask = AM35XX_EVM_PHY_MASK, + .mdio_max_freq = AM35XX_EVM_MDIO_FREQUENCY, + .rmii_en = 1, +}; + +static struct resource am3517_emac_resources[] = { + { + .start = AM35XX_IPSS_EMAC_BASE, + .end = AM35XX_IPSS_EMAC_BASE + 0x3FFFF, + .flags = IORESOURCE_MEM, + }, + { + .start = INT_35XX_EMAC_C0_RXTHRESH_IRQ, + .end = INT_35XX_EMAC_C0_RXTHRESH_IRQ, + .flags = IORESOURCE_IRQ, + }, + { + .start = INT_35XX_EMAC_C0_RX_PULSE_IRQ, + .end = INT_35XX_EMAC_C0_RX_PULSE_IRQ, + .flags = IORESOURCE_IRQ, + }, + { + .start = INT_35XX_EMAC_C0_TX_PULSE_IRQ, + .end = INT_35XX_EMAC_C0_TX_PULSE_IRQ, + .flags = IORESOURCE_IRQ, + }, + { + .start = INT_35XX_EMAC_C0_MISC_PULSE_IRQ, + .end = INT_35XX_EMAC_C0_MISC_PULSE_IRQ, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device am3517_emac_device = { + .name = "davinci_emac", + .id = -1, + .num_resources = ARRAY_SIZE(am3517_emac_resources), + .resource = am3517_emac_resources, +}; + +static void am3517_enable_ethernet_int(void) +{ + u32 regval; + + regval = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR); + regval = (regval | AM35XX_CPGMAC_C0_RX_PULSE_CLR | + AM35XX_CPGMAC_C0_TX_PULSE_CLR | + AM35XX_CPGMAC_C0_MISC_PULSE_CLR | + AM35XX_CPGMAC_C0_RX_THRESH_CLR); + omap_ctrl_writel(regval, AM35XX_CONTROL_LVL_INTR_CLEAR); + regval = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR); +} + +static void am3517_disable_ethernet_int(void) +{ + u32 regval; + + regval = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR); + regval = (regval | AM35XX_CPGMAC_C0_RX_PULSE_CLR | + AM35XX_CPGMAC_C0_TX_PULSE_CLR); + omap_ctrl_writel(regval, AM35XX_CONTROL_LVL_INTR_CLEAR); + regval = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR); +} + +void am3517_evm_ethernet_init(struct emac_platform_data *pdata) +{ + unsigned int regval; + + pdata->ctrl_reg_offset = AM35XX_EMAC_CNTRL_OFFSET; + pdata->ctrl_mod_reg_offset = AM35XX_EMAC_CNTRL_MOD_OFFSET; + pdata->ctrl_ram_offset = AM35XX_EMAC_CNTRL_RAM_OFFSET; + pdata->mdio_reg_offset = AM35XX_EMAC_MDIO_OFFSET; + pdata->ctrl_ram_size = AM35XX_EMAC_CNTRL_RAM_SIZE; + pdata->version = EMAC_VERSION_2; + pdata->hw_ram_addr = AM35XX_EMAC_HW_RAM_ADDR; + pdata->interrupt_enable = am3517_enable_ethernet_int; + pdata->interrupt_disable = am3517_disable_ethernet_int; + am3517_emac_device.dev.platform_data = pdata; + platform_device_register(&am3517_emac_device); + + regval = omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET); + regval = regval & (~(AM35XX_CPGMACSS_SW_RST)); + omap_ctrl_writel(regval, AM35XX_CONTROL_IP_SW_RESET); + regval = omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET); + + return ; +} + + + #define LCD_PANEL_PWR 176 #define LCD_PANEL_BKLIGHT_PWR 182 #define LCD_PANEL_PWM 181 @@ -351,6 +447,8 @@ static void __init am3517_evm_init(void) i2c_register_board_info(1, am3517evm_i2c_boardinfo, ARRAY_SIZE(am3517evm_i2c_boardinfo)); + /*Ethernet*/ + am3517_evm_ethernet_init(&am3517_evm_emac_pdata); } static void __init am3517_evm_map_io(void) |