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authorBen Gardiner <bengardiner@nanometrics.ca>2010-10-14 17:26:29 -0400
committerWolfgang Denk <wd@denx.de>2010-10-17 20:14:55 +0200
commit3d248d37e1a176326ac8bf6a39144076707530e3 (patch)
treeac2bdaf982e350289ae246588f73353a8120ef6f /board
parent771d028afff6d223f2e9cf7ed8328eb2287f4303 (diff)
da850evm: basic MII EMAC support
The current da850evm support in u-boot/master omits any use of the davinci EMAC. This patch adds basic support for the EMAC using the MII PHY found on the baseboard of the EVM. The MAC address is read from the environment variable 'ethadd'. Note that this is different from the da850evm support in the u-boot omapl1 tree where the MAC address is read from SPI flash. Signed-off-by: Ben Gardiner <bengardiner@nanometrics.ca> CC: Sandeep Paulraj <s-paulraj@ti.com> CC: Sudhakar Rajashekhara <sudhakar.raj@ti.com> CC: Ben Warren <biggerbadderben@gmail.com> CC: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
Diffstat (limited to 'board')
-rw-r--r--board/davinci/da8xxevm/da850evm.c49
1 files changed, 49 insertions, 0 deletions
diff --git a/board/davinci/da8xxevm/da850evm.c b/board/davinci/da8xxevm/da850evm.c
index 0eb9e29ea35..c8c5e1b30ed 100644
--- a/board/davinci/da8xxevm/da850evm.c
+++ b/board/davinci/da8xxevm/da850evm.c
@@ -23,8 +23,11 @@
#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"
#include "common.h"
@@ -49,6 +52,28 @@ static const struct pinmux_config uart_pins[] = {
{ pinmux(4), 2, 5 }
};
+#ifdef CONFIG_DRIVER_TI_EMAC
+static const struct pinmux_config emac_pins[] = {
+ { pinmux(2), 8, 1 },
+ { pinmux(2), 8, 2 },
+ { pinmux(2), 8, 3 },
+ { pinmux(2), 8, 4 },
+ { pinmux(2), 8, 5 },
+ { pinmux(2), 8, 6 },
+ { pinmux(2), 8, 7 },
+ { pinmux(3), 8, 0 },
+ { pinmux(3), 8, 1 },
+ { pinmux(3), 8, 2 },
+ { pinmux(3), 8, 3 },
+ { pinmux(3), 8, 4 },
+ { pinmux(3), 8, 5 },
+ { pinmux(3), 8, 6 },
+ { pinmux(3), 8, 7 },
+ { pinmux(4), 8, 0 },
+ { pinmux(4), 8, 1 }
+};
+#endif /* CONFIG_DRIVER_TI_EMAC */
+
/* I2C pin muxer settings */
static const struct pinmux_config i2c_pins[] = {
{ pinmux(4), 2, 2 },
@@ -142,6 +167,14 @@ int board_init(void)
if (davinci_configure_pin_mux_items(pinmuxes, ARRAY_SIZE(pinmuxes)))
return 1;
+#ifdef CONFIG_DRIVER_TI_EMAC
+ if (davinci_configure_pin_mux(emac_pins, ARRAY_SIZE(emac_pins)) != 0)
+ return 1;
+ /* set cfgchip3 to select MII */
+ writel(readl(&davinci_syscfg_regs->cfgchip3) & ~(1 << 8),
+ &davinci_syscfg_regs->cfgchip3);
+#endif /* CONFIG_DRIVER_TI_EMAC */
+
/* enable the console UART */
writel((DAVINCI_UART_PWREMU_MGMT_FREE | DAVINCI_UART_PWREMU_MGMT_URRST |
DAVINCI_UART_PWREMU_MGMT_UTRST),
@@ -149,3 +182,19 @@ int board_init(void)
return 0;
}
+
+#ifdef CONFIG_DRIVER_TI_EMAC
+
+/*
+ * Initializes on-board ethernet controllers.
+ */
+int board_eth_init(bd_t *bis)
+{
+ if (!davinci_emac_initialize()) {
+ printf("Error: Ethernet init failed!\n");
+ return -1;
+ }
+
+ return 0;
+}
+#endif /* CONFIG_DRIVER_TI_EMAC */