diff options
| author | Olof Johansson <olof@lixom.net> | 2009-09-29 10:22:45 -0400 |
|---|---|---|
| committer | Tom Rix <Tom.Rix@windriver.com> | 2009-10-13 06:17:38 -0500 |
| commit | df3826262c0efd2baec4df23d44b3942af98f5a7 (patch) | |
| tree | c8f5f28b0ca5b7e4a9b7b82060c275ce5896392a /board/overo/overo.c | |
| parent | 2a6cc97b91997ae485312ac91ffbcea6a89b663a (diff) | |
TI: OMAP3: Overo Tobi ethernet support
Add setup for ethernet on Tobi, allowing kernel/ramdisk to be loaded
over tftp.
This also refactors the smc911x driver to allow for detecting when the
chip is missing. I.e. the detect_chip() function is called earlier and
will abort gracefully when the Chip ID read returns all 1's.
Signed-off-by: Olof Johansson <olof@lixom.net>
Acked-by: Dirk Behme <dirk.behme@googlemail.com>
Acked-by: Ben Warren <biggerbadderben@gmail.com>
Diffstat (limited to 'board/overo/overo.c')
| -rw-r--r-- | board/overo/overo.c | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/board/overo/overo.c b/board/overo/overo.c index dd6d28622d1..d42dc132608 100644 --- a/board/overo/overo.c +++ b/board/overo/overo.c @@ -29,13 +29,20 @@ * MA 02111-1307 USA */ #include <common.h> +#include <netdev.h> #include <twl4030.h> #include <asm/io.h> #include <asm/arch/mux.h> +#include <asm/arch/mem.h> #include <asm/arch/sys_proto.h> +#include <asm/arch/gpio.h> #include <asm/mach-types.h> #include "overo.h" +#if defined(CONFIG_CMD_NET) +static void setup_net_chip(void); +#endif + /* * Routine: board_init * Description: Early hardware init. @@ -62,6 +69,10 @@ int misc_init_r(void) twl4030_power_init(); twl4030_led_init(); +#if defined(CONFIG_CMD_NET) + setup_net_chip(); +#endif + dieid_num_r(); return 0; @@ -77,3 +88,51 @@ void set_muxconf_regs(void) { MUX_OVERO(); } + +#if defined(CONFIG_CMD_NET) +/* + * Routine: setup_net_chip + * Description: Setting up the configuration GPMC registers specific to the + * Ethernet hardware. + */ +static void setup_net_chip(void) +{ + struct ctrl *ctrl_base = (struct ctrl *)OMAP34XX_CTRL_BASE; + + /* Configure GPMC registers */ + writel(NET_GPMC_CONFIG1, &gpmc_cfg->cs[5].config1); + writel(NET_GPMC_CONFIG2, &gpmc_cfg->cs[5].config2); + writel(NET_GPMC_CONFIG3, &gpmc_cfg->cs[5].config3); + writel(NET_GPMC_CONFIG4, &gpmc_cfg->cs[5].config4); + writel(NET_GPMC_CONFIG5, &gpmc_cfg->cs[5].config5); + writel(NET_GPMC_CONFIG6, &gpmc_cfg->cs[5].config6); + writel(NET_GPMC_CONFIG7, &gpmc_cfg->cs[5].config7); + + /* Enable off mode for NWE in PADCONF_GPMC_NWE register */ + writew(readw(&ctrl_base ->gpmc_nwe) | 0x0E00, &ctrl_base->gpmc_nwe); + /* Enable off mode for NOE in PADCONF_GPMC_NADV_ALE register */ + writew(readw(&ctrl_base->gpmc_noe) | 0x0E00, &ctrl_base->gpmc_noe); + /* Enable off mode for ALE in PADCONF_GPMC_NADV_ALE register */ + writew(readw(&ctrl_base->gpmc_nadv_ale) | 0x0E00, + &ctrl_base->gpmc_nadv_ale); + + /* Make GPIO 64 as output pin and send a magic pulse through it */ + if (!omap_request_gpio(64)) { + omap_set_gpio_direction(64, 0); + omap_set_gpio_dataout(64, 1); + udelay(1); + omap_set_gpio_dataout(64, 0); + udelay(1); + omap_set_gpio_dataout(64, 1); + } +} +#endif + +int board_eth_init(bd_t *bis) +{ + int rc = 0; +#ifdef CONFIG_SMC911X + rc = smc911x_initialize(0, CONFIG_SMC911X_BASE); +#endif + return rc; +} |