diff options
| author | Sandeep Paulraj <s-paulraj@ti.com> | 2009-06-20 12:23:39 -0400 |
|---|---|---|
| committer | Kevin Hilman <khilman@deeprootsystems.com> | 2009-08-26 10:56:58 +0300 |
| commit | 8ed0a9d4e7cfff439f95d08c882841f25a12bf54 (patch) | |
| tree | c516207140f5d91b9e45863fd168622ed779dda9 /arch/arm/mach-davinci/board-dm365-evm.c | |
| parent | 9f5131538368b299aabcc790f1cece0439e65a5e (diff) | |
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>
Diffstat (limited to 'arch/arm/mach-davinci/board-dm365-evm.c')
| -rw-r--r-- | arch/arm/mach-davinci/board-dm365-evm.c | 66 |
1 files changed, 64 insertions, 2 deletions
diff --git a/arch/arm/mach-davinci/board-dm365-evm.c b/arch/arm/mach-davinci/board-dm365-evm.c index 08c2f12d03d..9dda3999c8f 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 void __init dm365_evm_map_io(void) 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) |