am335x_evm: CPSW support
This patch adds board-specific initialization for CPSW on
TI AM335X based boards. Tested on BeagleBone.
Signed-off-by: Chandan Nath <chandan.nath@ti.com>
[Ilya: split board-specific part into separate patch]
Signed-off-by: Ilya Yanok <ilya.yanok@cogentembedded.com>
diff --git a/board/ti/am335x/evm.c b/board/ti/am335x/evm.c
index 55e24a8..b7eee80 100644
--- a/board/ti/am335x/evm.c
+++ b/board/ti/am335x/evm.c
@@ -15,13 +15,26 @@
#include <common.h>
#include <errno.h>
+#include <asm/io.h>
#include <asm/arch/cpu.h>
#include <asm/arch/hardware.h>
#include <asm/arch/common_def.h>
#include <i2c.h>
+#include <miiphy.h>
+#include <cpsw.h>
DECLARE_GLOBAL_DATA_PTR;
+#define UART_RESET (0x1 << 1)
+#define UART_CLK_RUNNING_MASK 0x1
+#define UART_SMART_IDLE_EN (0x1 << 0x3)
+
+/* MII mode defines */
+#define MII_MODE_ENABLE 0x0
+#define RGMII_MODE_ENABLE 0xA
+
+struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE;
+
/*
* I2C Address of on-board EEPROM
*/
@@ -106,3 +119,81 @@
return 0;
}
+
+#ifdef CONFIG_DRIVER_TI_CPSW
+static void cpsw_control(int enabled)
+{
+ /* VTP can be added here */
+
+ return;
+}
+
+static struct cpsw_slave_data cpsw_slaves[] = {
+ {
+ .slave_reg_ofs = 0x208,
+ .sliver_reg_ofs = 0xd80,
+ .phy_id = 0,
+ },
+ {
+ .slave_reg_ofs = 0x308,
+ .sliver_reg_ofs = 0xdc0,
+ .phy_id = 1,
+ },
+};
+
+static struct cpsw_platform_data cpsw_data = {
+ .mdio_base = AM335X_CPSW_MDIO_BASE,
+ .cpsw_base = AM335X_CPSW_BASE,
+ .mdio_div = 0xff,
+ .channels = 8,
+ .cpdma_reg_ofs = 0x800,
+ .slaves = 1,
+ .slave_data = cpsw_slaves,
+ .ale_reg_ofs = 0xd00,
+ .ale_entries = 1024,
+ .host_port_reg_ofs = 0x108,
+ .hw_stats_reg_ofs = 0x900,
+ .mac_control = (1 << 5),
+ .control = cpsw_control,
+ .host_port_num = 0,
+ .version = CPSW_CTRL_VERSION_2,
+};
+
+int board_eth_init(bd_t *bis)
+{
+ uint8_t mac_addr[6];
+ uint32_t mac_hi, mac_lo;
+
+ if (!eth_getenv_enetaddr("ethaddr", mac_addr)) {
+ debug("<ethaddr> not set. Reading from E-fuse\n");
+ /* try reading mac address from efuse */
+ mac_lo = readl(&cdev->macid0l);
+ mac_hi = readl(&cdev->macid0h);
+ mac_addr[0] = mac_hi & 0xFF;
+ mac_addr[1] = (mac_hi & 0xFF00) >> 8;
+ mac_addr[2] = (mac_hi & 0xFF0000) >> 16;
+ mac_addr[3] = (mac_hi & 0xFF000000) >> 24;
+ mac_addr[4] = mac_lo & 0xFF;
+ mac_addr[5] = (mac_lo & 0xFF00) >> 8;
+
+ if (is_valid_ether_addr(mac_addr))
+ eth_setenv_enetaddr("ethaddr", mac_addr);
+ else
+ return -1;
+ }
+
+ if (board_is_bone()) {
+ enable_mii1_pin_mux();
+ writel(MII_MODE_ENABLE, &cdev->miisel);
+ cpsw_slaves[0].phy_if = cpsw_slaves[1].phy_if =
+ PHY_INTERFACE_MODE_MII;
+ } else {
+ enable_rgmii1_pin_mux();
+ writel(RGMII_MODE_ENABLE, &cdev->miisel);
+ cpsw_slaves[0].phy_if = cpsw_slaves[1].phy_if =
+ PHY_INTERFACE_MODE_RGMII;
+ }
+
+ return cpsw_register(&cpsw_data);
+}
+#endif
diff --git a/include/configs/am335x_evm.h b/include/configs/am335x_evm.h
index 2b41c1c..2a3251b 100644
--- a/include/configs/am335x_evm.h
+++ b/include/configs/am335x_evm.h
@@ -21,11 +21,13 @@
#undef CONFIG_GZIP
#undef CONFIG_ZLIB
#undef CONFIG_SYS_HUSH_PARSER
-#undef CONFIG_CMD_NET
#include <asm/arch/cpu.h>
#include <asm/arch/hardware.h>
+#define CONFIG_DMA_COHERENT
+#define CONFIG_DMA_COHERENT_SIZE (1 << 20)
+
#define CONFIG_ENV_SIZE 0x400
#define CONFIG_SYS_MALLOC_LEN (CONFIG_ENV_SIZE + (8 * 1024))
#define CONFIG_SYS_PROMPT "U-Boot# "
@@ -168,4 +170,20 @@
/* Unsupported features */
#undef CONFIG_USE_IRQ
+#define CONFIG_CMD_NET
+#define CONFIG_CMD_DHCP
+#define CONFIG_CMD_PING
+#define CONFIG_DRIVER_TI_CPSW
+#define CONFIG_MII
+#define CONFIG_BOOTP_DEFAULT
+#define CONFIG_BOOTP_DNS
+#define CONFIG_BOOTP_DNS2
+#define CONFIG_BOOTP_SEND_HOSTNAME
+#define CONFIG_BOOTP_GATEWAY
+#define CONFIG_BOOTP_SUBNETMASK
+#define CONFIG_NET_RETRY_COUNT 10
+#define CONFIG_NET_MULTI
+#define CONFIG_PHY_GIGE
+#define CONFIG_PHYLIB
+
#endif /* ! __CONFIG_AM335X_EVM_H */