Add platform init code for EMAC driver.
Signed-off-by: Stanley.Miao <stanley.miao@xxxxxxxxxxxxx>
---
arch/arm/mach-omap2/board-am3517evm.c | 114 +++++++++++++++++++++++++++++
arch/arm/mach-omap2/include/mach/am35xx.h | 9 ++
2 files changed, 123 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-omap2/board-am3517evm.c b/arch/arm/mach-omap2/board-am3517evm.c
index 6ae8805..db542b2 100644
--- a/arch/arm/mach-omap2/board-am3517evm.c
+++ b/arch/arm/mach-omap2/board-am3517evm.c
@@ -20,6 +20,7 @@
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/gpio.h>
+#include <linux/davinci_emac.h>
#include <linux/i2c/pca953x.h>
#include <mach/hardware.h>
@@ -30,6 +31,7 @@
#include <plat/board.h>
#include <plat/common.h>
+#include <plat/control.h>
#include <plat/usb.h>
#include <plat/display.h>
@@ -39,6 +41,117 @@
#define LCD_PANEL_BKLIGHT_PWR 182
#define LCD_PANEL_PWM 181
+#define AM35XX_EVM_PHY_MASK (0xF)
+#define AM35XX_EVM_MDIO_FREQUENCY (1000000) /*PHY bus frequency */
+
+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 int __init eth_addr_setup(char *str)
+{
+ int i;
+ long res;
+
+ if (str == NULL)
+ return 0;
+ for (i = 0; i < ETH_ALEN; i++) {
+ if (!strict_strtol(&str[i * 3], 16, &res))
+ am3517_evm_emac_pdata.mac_addr[i] = res;
+ else
+ return -EINVAL;
+ }
+ return 1;
+}
+
+/* Get MAC address from kernel boot parameter eth=AA:BB:CC:DD:EE:FF */
+__setup("eth=", eth_addr_setup);
+
+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)
+{
+ u32 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 ;
+ }
+
static struct i2c_board_info __initdata am3517evm_i2c_boardinfo[] = {
{
I2C_BOARD_INFO("s35390a", 0x30),
@@ -308,6 +421,7 @@ static void __init am3517_evm_init(void)
/* DSS */
am3517_evm_display_init();
+ am3517_evm_ethernet_init(&am3517_evm_emac_pdata);
/* RTC - S35390A */
am3517_evm_rtc_init();
diff --git a/arch/arm/mach-omap2/include/mach/am35xx.h b/arch/arm/mach-omap2/include/mach/am35xx.h
index a705f94..12a85ec 100644
--- a/arch/arm/mach-omap2/include/mach/am35xx.h
+++ b/arch/arm/mach-omap2/include/mach/am35xx.h
@@ -23,4 +23,13 @@
#define AM35XX_IPSS_HECC_BASE 0x5C050000
#define AM35XX_IPSS_VPFE_BASE 0x5C060000
+#define AM35XX_EMAC_CNTRL_OFFSET (0x10000)
+#define AM35XX_EMAC_CNTRL_MOD_OFFSET (0x0)
+#define AM35XX_EMAC_CNTRL_RAM_OFFSET (0x20000)
+#define AM35XX_EMAC_MDIO_OFFSET (0x30000)
+#define AM35XX_EMAC_CNTRL_RAM_SIZE (0x2000)
+#define AM35XX_EMAC_RAM_ADDR (AM35XX_IPSS_EMAC_BASE + \
+ AM35XX_EMAC_CNTRL_RAM_OFFSET)
+#define AM35XX_EMAC_HW_RAM_ADDR (0x01E20000)
+
#endif /* __ASM_ARCH_AM35XX_H */
--
1.5.4.3
--
To unsubscribe from this list: send the line "unsubscribe linux-omap" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
