diff options
| author | Nick Thompson <nick.thompson@ge.com> | 2010-02-17 20:37:24 -0500 |
|---|---|---|
| committer | Tom Rix <Tom.Rix@windriver.com> | 2010-03-07 12:36:35 -0600 |
| commit | 37cffdad06af5a4538dd090794f213292135adbc (patch) | |
| tree | 10f2e74d04197e01ba8838fdc4f1b8a79350fa1c /board/davinci/da830evm | |
| parent | d8775d03f3f0116241cfb45c7ef27fd080904c4a (diff) | |
da830evm: Add support for TI EMAC
Adds support for ethernet networking on the da830evm platform.
This platform uses an SoC EMAC interface and a 3 port ethernet
switch as a PHY with an RMII interface. The PHY also has a i2c
interface for configuring the switch functions.
Signed-off-by: Nick Thompson <nick.thompson@ge.com>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
Diffstat (limited to 'board/davinci/da830evm')
| -rw-r--r-- | board/davinci/da830evm/da830evm.c | 65 |
1 files changed, 63 insertions, 2 deletions
diff --git a/board/davinci/da830evm/da830evm.c b/board/davinci/da830evm/da830evm.c index aac5c5cbe1..ed668afccc 100644 --- a/board/davinci/da830evm/da830evm.c +++ b/board/davinci/da830evm/da830evm.c @@ -34,8 +34,11 @@ #include <common.h> #include <i2c.h> +#include <net.h> +#include <netdev.h> #include <asm/arch/hardware.h> #include <asm/arch/emif_defs.h> +#include <asm/arch/emac_defs.h> #include <asm/io.h> #include "../common/misc.h" @@ -69,6 +72,20 @@ static const struct pinmux_config emifa_nand_pins[] = { { pinmux[18], 1, 5 }, }; +/* EMAC PHY interface pins */ +static const struct pinmux_config emac_pins[] = { + { pinmux[9], 0, 5 }, + { pinmux[10], 2, 1 }, + { pinmux[10], 2, 2 }, + { pinmux[10], 2, 3 }, + { pinmux[10], 2, 4 }, + { pinmux[10], 2, 5 }, + { pinmux[10], 2, 6 }, + { pinmux[10], 2, 7 }, + { pinmux[11], 2, 0 }, + { pinmux[11], 2, 1 }, +}; + /* UART pin muxer settings */ static const struct pinmux_config uart_pins[] = { { pinmux[8], 2, 7 }, @@ -77,8 +94,8 @@ static const struct pinmux_config uart_pins[] = { /* I2C pin muxer settings */ static const struct pinmux_config i2c_pins[] = { - { pinmux[9], 2, 3 }, - { pinmux[9], 2, 4 } + { pinmux[8], 2, 3 }, + { pinmux[8], 2, 4 } }; /* USB0_DRVVBUS pin muxer settings */ @@ -98,6 +115,9 @@ static const struct pinmux_resource pinmuxes[] = { #ifdef CONFIG_USE_NAND PINMUX_ITEM(emifa_nand_pins), #endif +#if defined(CONFIG_DRIVER_TI_EMAC) + PINMUX_ITEM(emac_pins), +#endif }; int board_init(void) @@ -169,3 +189,44 @@ int board_init(void) return(0); } + +#if defined(CONFIG_DRIVER_TI_EMAC) + +#define PHY_SW_I2C_ADDR 0x5f /* Address of PHY on i2c bus */ + +/* + * Initializes on-board ethernet controllers. + */ +int board_eth_init(bd_t *bis) +{ + u_int8_t mac_addr[6]; + u_int8_t switch_start_cmd[2] = { 0x01, 0x23 }; + + /* Read Ethernet MAC address from EEPROM */ + if (dvevm_read_mac_address(mac_addr)) + /* set address env if not already set */ + dv_configure_mac_address(mac_addr); + + /* read the address back from env */ + if (!eth_getenv_enetaddr("ethaddr", mac_addr)) + return -1; + + /* provide the resulting addr to the driver */ + davinci_eth_set_mac_addr(mac_addr); + + /* enable the Ethernet switch in the 3 port PHY */ + if (i2c_write(PHY_SW_I2C_ADDR, 0, 0, + switch_start_cmd, sizeof(switch_start_cmd))) { + printf("Ethernet switch start failed!\n"); + return -1; + } + + /* finally, initialise the driver */ + if (!davinci_emac_initialize()) { + printf("Error: Ethernet init failed!\n"); + return -1; + } + + return 0; +} +#endif /* CONFIG_DRIVER_TI_EMAC */ |