From: Sandeep Paulraj s-paulraj@ti.com
This patch enables EMAC on the DM365 EVM.
Signed-off-by: Sandeep Paulraj s-paulraj@ti.com --- Changes since v1: Using a memory map to manipulate GPIO registers. This was suggested by Wolfgang.
Changes since v2: Improve Bit handling.
When compiling with this patch DM365 will still give compilation issues as i have to send an update to the EMAC driver for DM365. Patch to follow.
board/davinci/dm365evm/dm365evm.c | 43 +++++++++++++++++++++++++++++++++++++ 1 files changed, 43 insertions(+), 0 deletions(-)
diff --git a/board/davinci/dm365evm/dm365evm.c b/board/davinci/dm365evm/dm365evm.c index 99392b3..5b97060 100644 --- a/board/davinci/dm365evm/dm365evm.c +++ b/board/davinci/dm365evm/dm365evm.c @@ -17,9 +17,12 @@
#include <common.h> #include <nand.h> +#include <asm/io.h> #include <asm/arch/hardware.h> #include <asm/arch/emif_defs.h> #include <asm/arch/nand_defs.h> +#include <asm/arch/gpio_defs.h> +#include <netdev.h> #include "../common/misc.h"
DECLARE_GLOBAL_DATA_PTR; @@ -32,6 +35,46 @@ int board_init(void) return 0; }
+#ifdef CONFIG_DRIVER_TI_EMAC +int board_eth_init(bd_t *bis) +{ + uint8_t eeprom_enetaddr[6]; + int i; + struct davinci_gpio *gpio1_base = + (struct davinci_gpio *)DAVINCI_GPIO_BANK01; + + /* Configure PINMUX 3 to enable EMAC pins */ + writel((readl(PINMUX3) | 0x1affff), PINMUX3); + + /* Configure GPIO20 as output */ + writel((readl(&gpio1_base->dir) & ~(1 << 20)), &gpio1_base->dir); + + /* Toggle GPIO 20 */ + for (i = 0; i < 20; i++) { + /* GPIO 20 low */ + writel((readl(&gpio1_base->out_data) & ~(1 << 20)), + &gpio1_base->out_data); + + udelay(1000); + + /* GPIO 20 high */ + writel((readl(&gpio1_base->out_data) | (1 << 20)), + &gpio1_base->out_data); + } + + /* Configure I2C pins so that EEPROM can be read */ + writel((readl(PINMUX3) | 0x01400000), PINMUX3); + + /* Read Ethernet MAC address from EEPROM */ + if (dvevm_read_mac_address(eeprom_enetaddr)) + dv_configure_mac_address(eeprom_enetaddr); + + davinci_emac_initialize(); + + return 0; +} +#endif + #ifdef CONFIG_NAND_DAVINCI static void nand_dm365evm_select_chip(struct mtd_info *mtd, int chip) {