davinci: dm365: EMAC support for SoC and dm365 EVM
The patch adds Support for EMAC in the DM365 SOC and
the DM365 EVM board.
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
diff --git a/arch/arm/mach-davinci/board-dm365-evm.c b/arch/arm/mach-davinci/board-dm365-evm.c
index 08c2f12..9dda399 100644
--- a/arch/arm/mach-davinci/board-dm365-evm.c
+++ b/arch/arm/mach-davinci/board-dm365-evm.c
@@ -19,12 +19,12 @@
#include <linux/i2c.h>
#include <linux/io.h>
#include <linux/clk.h>
-
+#include <linux/i2c/at24.h>
#include <asm/setup.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
-
+#include <mach/mux.h>
#include <mach/hardware.h>
#include <mach/dm365.h>
#include <mach/psc.h>
@@ -34,14 +34,69 @@
#include <mach/serial.h>
#include <mach/common.h>
+#define DM365_EVM_PHY_MASK (0x2)
+#define DM365_EVM_MDIO_FREQUENCY (2200000) /* PHY bus frequency */
+
+static struct at24_platform_data eeprom_info = {
+ .byte_len = (256*1024) / 8,
+ .page_size = 64,
+ .flags = AT24_FLAG_ADDR16,
+ .setup = davinci_get_mac_addr,
+ .context = (void *)0x7f00,
+};
+
+static struct i2c_board_info i2c_info[] = {
+ {
+ I2C_BOARD_INFO("24c256", 0x50),
+ .platform_data = &eeprom_info,
+ },
+};
+
static struct davinci_i2c_platform_data i2c_pdata = {
.bus_freq = 400 /* kHz */,
.bus_delay = 0 /* usec */,
};
+static void dm365evm_emac_configure(void)
+{
+ /*
+ * EMAC pins are multiplexed with GPIO and UART
+ * Further details are available at the DM365 ARM
+ * Subsystem Users Guide(sprufg5.pdf) pages 125 - 127
+ */
+ davinci_cfg_reg(DM365_EMAC_TX_EN);
+ davinci_cfg_reg(DM365_EMAC_TX_CLK);
+ davinci_cfg_reg(DM365_EMAC_COL);
+ davinci_cfg_reg(DM365_EMAC_TXD3);
+ davinci_cfg_reg(DM365_EMAC_TXD2);
+ davinci_cfg_reg(DM365_EMAC_TXD1);
+ davinci_cfg_reg(DM365_EMAC_TXD0);
+ davinci_cfg_reg(DM365_EMAC_RXD3);
+ davinci_cfg_reg(DM365_EMAC_RXD2);
+ davinci_cfg_reg(DM365_EMAC_RXD1);
+ davinci_cfg_reg(DM365_EMAC_RXD0);
+ davinci_cfg_reg(DM365_EMAC_RX_CLK);
+ davinci_cfg_reg(DM365_EMAC_RX_DV);
+ davinci_cfg_reg(DM365_EMAC_RX_ER);
+ davinci_cfg_reg(DM365_EMAC_CRS);
+ davinci_cfg_reg(DM365_EMAC_MDIO);
+ davinci_cfg_reg(DM365_EMAC_MDCLK);
+
+ /*
+ * EMAC interrupts are multiplexed with GPIO interrupts
+ * Details are available at the DM365 ARM
+ * Subsystem Users Guide(sprufg5.pdf) pages 133 - 134
+ */
+ davinci_cfg_reg(DM365_INT_EMAC_RXTHRESH);
+ davinci_cfg_reg(DM365_INT_EMAC_RXPULSE);
+ davinci_cfg_reg(DM365_INT_EMAC_TXPULSE);
+ davinci_cfg_reg(DM365_INT_EMAC_MISCPULSE);
+}
+
static void __init evm_init_i2c(void)
{
davinci_init_i2c(&i2c_pdata);
+ i2c_register_board_info(1, i2c_info, ARRAY_SIZE(i2c_info));
}
static struct davinci_uart_config uart_config __initdata = {
@@ -55,8 +110,15 @@
static __init void dm365_evm_init(void)
{
+ struct davinci_soc_info *soc_info = &davinci_soc_info;
+
evm_init_i2c();
davinci_serial_init(&uart_config);
+
+ dm365evm_emac_configure();
+
+ soc_info->emac_pdata->phy_mask = DM365_EVM_PHY_MASK;
+ soc_info->emac_pdata->mdio_max_freq = DM365_EVM_MDIO_FREQUENCY;
}
static __init void dm365_evm_irq_init(void)
