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authorSriram <srk@ti.com>2010-05-11 01:29:17 +0400
committerTony Lindgren <tony@atomide.com>2010-05-20 21:53:55 +0400
commit56881d28b2eed78665daa1d680014e9ebaf8c0e3 (patch)
treea55628721b89bb980c37e3e2dc9ef4c3ebe526ec /arch/arm/mach-omap2/board-am3517evm.c
parent39e799df2f504a160852342109d228abfe75fede (diff)
downloadlinux-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/mach-omap2/board-am3517evm.c')
-rw-r--r--arch/arm/mach-omap2/board-am3517evm.c98
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)