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-rw-r--r--board/davinci/da8xxevm/da850evm.c72
1 files changed, 72 insertions, 0 deletions
diff --git a/board/davinci/da8xxevm/da850evm.c b/board/davinci/da8xxevm/da850evm.c
index 34ef53d..beb5657 100644
--- a/board/davinci/da8xxevm/da850evm.c
+++ b/board/davinci/da8xxevm/da850evm.c
@@ -25,12 +25,15 @@
#include <i2c.h>
#include <net.h>
#include <netdev.h>
+#include <spi.h>
+#include <spi_flash.h>
#include <asm/arch/hardware.h>
#include <asm/arch/emif_defs.h>
#include <asm/arch/emac_defs.h>
#include <asm/arch/pinmux_defs.h>
#include <asm/io.h>
#include <asm/arch/davinci_misc.h>
+#include <asm/errno.h>
#include <hwconfig.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -43,6 +46,36 @@ DECLARE_GLOBAL_DATA_PTR;
#endif
#endif /* CONFIG_DRIVER_TI_EMAC */
+#define CFG_MAC_ADDR_SPI_BUS 0
+#define CFG_MAC_ADDR_SPI_CS 0
+#define CFG_MAC_ADDR_SPI_MAX_HZ CONFIG_SF_DEFAULT_SPEED
+#define CFG_MAC_ADDR_SPI_MODE SPI_MODE_3
+
+#define CFG_MAC_ADDR_OFFSET (flash->size - SZ_64K)
+
+#ifdef CONFIG_MAC_ADDR_IN_SPIFLASH
+static int get_mac_addr(u8 *addr)
+{
+ struct spi_flash *flash;
+ int ret;
+
+ flash = spi_flash_probe(CFG_MAC_ADDR_SPI_BUS, CFG_MAC_ADDR_SPI_CS,
+ CFG_MAC_ADDR_SPI_MAX_HZ, CFG_MAC_ADDR_SPI_MODE);
+ if (!flash) {
+ printf("Error - unable to probe SPI flash.\n");
+ return -1;
+ }
+
+ ret = spi_flash_read(flash, CFG_MAC_ADDR_OFFSET, 6, addr);
+ if (ret) {
+ printf("Error - unable to read MAC address from SPI flash.\n");
+ return -1;
+ }
+
+ return ret;
+}
+#endif
+
void dsp_lpsc_on(unsigned domain, unsigned int id)
{
dv_reg_p mdstat, mdctl, ptstat, ptcmd;
@@ -98,6 +131,45 @@ static void dspwake(void)
int misc_init_r(void)
{
dspwake();
+
+#ifdef CONFIG_MAC_ADDR_IN_SPIFLASH
+ uchar env_enetaddr[6];
+ int enetaddr_found;
+ int spi_mac_read;
+ uchar buff[6];
+
+ enetaddr_found = eth_getenv_enetaddr("ethaddr", env_enetaddr);
+ spi_mac_read = get_mac_addr(buff);
+
+ /*
+ * MAC address not present in the environment
+ * try and read the MAC address from SPI flash
+ * and set it.
+ */
+ if (!enetaddr_found) {
+ if (!spi_mac_read) {
+ if (is_valid_ether_addr(buff)) {
+ if (eth_setenv_enetaddr("ethaddr", buff)) {
+ printf("Warning: Failed to "
+ "set MAC address from SPI flash\n");
+ }
+ } else {
+ printf("Warning: Invalid "
+ "MAC address read from SPI flash\n");
+ }
+ }
+ } else {
+ /*
+ * MAC address present in environment compare it with
+ * the MAC address in SPI flash and warn on mismatch
+ */
+ if (!spi_mac_read && is_valid_ether_addr(buff) &&
+ memcmp(env_enetaddr, buff, 6))
+ printf("Warning: MAC address in SPI flash don't match "
+ "with the MAC address in the environment\n");
+ printf("Default using MAC address from environment\n");
+ }
+#endif
return 0;
}