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am335x_evm: CPSW support

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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>
This commit is contained in:
Chandan Nath 2012-07-24 12:22:20 +00:00 committed by Albert ARIBAUD
parent c59a6a0dac
commit 9304296044
2 changed files with 110 additions and 1 deletions
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91
board/ti/am335x/evm.c
View File

@ -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 @@ int board_init(void)
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

20
include/configs/am335x_evm.h
View File

@ -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 */