[U-Boot] [PATCH v2] TI: OMAP3: Overo Tobi ethernet support

[Olof Johansson <olof@lixom.net>]

Add setup for ethernet on Tobi, allowing kernel/ramdisk to be loaded
over tftp.

Based on the omap3 evm code. I added a new highlevel define for Tobi
to avoid having it dependent on CMD_NET (which would seem backward in
this case).

Signed-off-by: Olof Johansson <olof@lixom.net>
---

This version of the patch fixes whitespace comments from WD, and includes
fixes for the build warnings that Dirk's patch also silenced.


 board/overo/overo.c           |   62 +++++++++++++++++++++++++++++++++++++++++
 board/overo/overo.h           |   37 ++++++++++++++++++++++++
 include/configs/omap3_overo.h |   23 ++++++++++++++-
 3 files changed, 120 insertions(+), 2 deletions(-)

diff --git a/board/overo/overo.c b/board/overo/overo.c
index dd6d286..7d87e52 100644
--- a/board/overo/overo.c
+++ b/board/overo/overo.c
@@ -29,13 +29,19 @@
  * 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/mach-types.h>
 #include "overo.h"
 
+#if defined(CONFIG_OMAP3_OVERO_TOBI)
+static void setup_net_chip(void);
+#endif
+
 /*
  * Routine: board_init
  * Description: Early hardware init.
@@ -62,6 +68,10 @@ int misc_init_r(void)
 	twl4030_power_init();
 	twl4030_led_init();
 
+#if defined(CONFIG_OMAP3_OVERO_TOBI)
+	setup_net_chip();
+#endif
+
 	dieid_num_r();
 
 	return 0;
@@ -76,4 +86,56 @@ int misc_init_r(void)
 void set_muxconf_regs(void)
 {
 	MUX_OVERO();
+#if defined(CONFIG_OMAP3_OVERO_TOBI)
+	MUX_OVERO_TOBI();
+#endif
+}
+
+#if defined(CONFIG_OMAP3_OVERO_TOBI)
+/*
+ * Routine: setup_net_chip
+ * Description: Setting up the configuration GPMC registers specific to the
+ *	      Ethernet hardware.
+ */
+static void setup_net_chip(void)
+{
+	struct gpio *gpio3_base = (struct gpio *)OMAP34XX_GPIO3_BASE;
+	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 */
+	writel(readl(&gpio3_base->oe) & ~(GPIO0), &gpio3_base->oe);
+
+	/* Now send a pulse on the GPIO pin */
+	writel(GPIO0, &gpio3_base->setdataout);
+	udelay(1);
+	writel(GPIO0, &gpio3_base->cleardataout);
+	udelay(1);
+	writel(GPIO0, &gpio3_base->setdataout);
+}
+#endif
+
+int board_eth_init(bd_t *bis)
+{
+	int rc = 0;
+#ifdef CONFIG_SMC911X
+	rc = smc911x_initialize(0, CONFIG_SMC911X_BASE);
+#endif
+	return rc;
 }
diff --git a/board/overo/overo.h b/board/overo/overo.h
index d9fe74e..48d58f2 100644
--- a/board/overo/overo.h
+++ b/board/overo/overo.h
@@ -378,4 +378,41 @@ const omap3_sysinfo sysinfo = {
 	MUX_VAL(CP(SDRC_CKE0),		(IDIS | PTU | EN  | M0)) /*sdrc_cke0*/\
 	MUX_VAL(CP(SDRC_CKE1),		(IDIS | PTU | EN  | M0)) /*sdrc_cke1*/
 
+#if defined(CONFIG_OMAP3_OVERO_TOBI)
+#define MUX_OVERO_TOBI() \
+	MUX_VAL(CP(GPMC_A1),		(IDIS | PTU | EN  | M0)) /*GPMC_A1*/\
+	MUX_VAL(CP(GPMC_A2),		(IDIS | PTU | EN  | M0)) /*GPMC_A2*/\
+	MUX_VAL(CP(GPMC_A3),		(IDIS | PTU | EN  | M0)) /*GPMC_A3*/\
+	MUX_VAL(CP(GPMC_A4),		(IDIS | PTU | EN  | M0)) /*GPMC_A4*/\
+	MUX_VAL(CP(GPMC_A5),		(IDIS | PTU | EN  | M0)) /*GPMC_A5*/\
+	MUX_VAL(CP(GPMC_A6),		(IDIS | PTU | EN  | M0)) /*GPMC_A6*/\
+	MUX_VAL(CP(GPMC_A7),		(IDIS | PTU | EN  | M0)) /*GPMC_A7*/\
+	MUX_VAL(CP(GPMC_A8),		(IDIS | PTU | EN  | M0)) /*GPMC_A8*/\
+	MUX_VAL(CP(GPMC_A9),		(IDIS | PTU | EN  | M0)) /*GPMC_A9*/\
+	MUX_VAL(CP(GPMC_A10),		(IDIS | PTU | EN  | M0)) /*GPMC_A10*/\
+	MUX_VAL(CP(GPMC_D0),		(IEN  | PTU | EN  | M0)) /*GPMC_D0*/\
+	MUX_VAL(CP(GPMC_D1),		(IEN  | PTU | EN  | M0)) /*GPMC_D1*/\
+	MUX_VAL(CP(GPMC_D2),		(IEN  | PTU | EN  | M0)) /*GPMC_D2*/\
+	MUX_VAL(CP(GPMC_D3),		(IEN  | PTU | EN  | M0)) /*GPMC_D3*/\
+	MUX_VAL(CP(GPMC_D4),		(IEN  | PTU | EN  | M0)) /*GPMC_D4*/\
+	MUX_VAL(CP(GPMC_D5),		(IEN  | PTU | EN  | M0)) /*GPMC_D5*/\
+	MUX_VAL(CP(GPMC_D6),		(IEN  | PTU | EN  | M0)) /*GPMC_D6*/\
+	MUX_VAL(CP(GPMC_D7),		(IEN  | PTU | EN  | M0)) /*GPMC_D7*/\
+	MUX_VAL(CP(GPMC_D8),		(IEN  | PTU | EN  | M0)) /*GPMC_D8*/\
+	MUX_VAL(CP(GPMC_D9),		(IEN  | PTU | EN  | M0)) /*GPMC_D9*/\
+	MUX_VAL(CP(GPMC_D10),		(IEN  | PTU | EN  | M0)) /*GPMC_D10*/\
+	MUX_VAL(CP(GPMC_D11),		(IEN  | PTU | EN  | M0)) /*GPMC_D11*/\
+	MUX_VAL(CP(GPMC_D12),		(IEN  | PTU | EN  | M0)) /*GPMC_D12*/\
+	MUX_VAL(CP(GPMC_D13),		(IEN  | PTU | EN  | M0)) /*GPMC_D13*/\
+	MUX_VAL(CP(GPMC_D14),		(IEN  | PTU | EN  | M0)) /*GPMC_D14*/\
+	MUX_VAL(CP(GPMC_D15),		(IEN  | PTU | EN  | M0)) /*GPMC_D15*/\
+	MUX_VAL(CP(GPMC_NCS5),		(IDIS | PTU | EN  | M0)) /*GPMC_nCS5*/\
+	MUX_VAL(CP(GPMC_CLK),		(IDIS | PTU | EN  | M0)) /*GPMC_CLK*/\
+	MUX_VAL(CP(GPMC_WAIT2),		(IEN  | PTU | EN  | M4)) /*GPIO_64*/\
+								 /* - SMSC911X_NRES*/\
+	MUX_VAL(CP(MCSPI1_CS2),		(IEN  | PTU | DIS | M4)) /*GPIO_176 */\
+								 /* - LAN_INTR */
+
+#endif
+
 #endif
diff --git a/include/configs/omap3_overo.h b/include/configs/omap3_overo.h
index 07a031b..3faf756 100644
--- a/include/configs/omap3_overo.h
+++ b/include/configs/omap3_overo.h
@@ -28,7 +28,10 @@
 #define CONFIG_OMAP		1	/* in a TI OMAP core */
 #define CONFIG_OMAP34XX		1	/* which is a 34XX */
 #define CONFIG_OMAP3430		1	/* which is in a 3430 */
-#define CONFIG_OMAP3_OVERO		1	/* working with overo */
+#define CONFIG_OMAP3_OVERO	1	/* working with overo */
+
+/* Change the below line to define 1 if you want ethernet on Tobi */
+#undef CONFIG_OMAP3_OVERO_TOBI		/* overo mounted on tobi */
 
 #include <asm/arch/cpu.h>	/* get chip and board defs */
 #include <asm/arch/omap3.h>
@@ -105,9 +108,12 @@
 #undef CONFIG_CMD_FPGA		/* FPGA configuration Support	*/
 #undef CONFIG_CMD_IMI		/* iminfo			*/
 #undef CONFIG_CMD_IMLS		/* List all found images	*/
-#undef CONFIG_CMD_NET		/* bootp, tftpboot, rarpboot	*/
 #undef CONFIG_CMD_NFS		/* NFS support			*/
 
+#if !defined(CONFIG_OMAP3_OVERO_TOBI)
+#undef CONFIG_CMD_NET		/* bootp, tftpboot, rarpboot	*/
+#endif
+
 #define CONFIG_SYS_NO_FLASH
 #define CONFIG_SYS_I2C_SPEED		100000
 #define CONFIG_SYS_I2C_SLAVE		1
@@ -293,4 +299,17 @@ extern unsigned int boot_flash_sec;
 extern unsigned int boot_flash_type;
 #endif
 
+#if defined(CONFIG_OMAP3_OVERO_TOBI)
+/*----------------------------------------------------------------------------
+ * SMSC9115 Ethernet from SMSC9118 family
+ *----------------------------------------------------------------------------
+ */
+
+#define CONFIG_NET_MULTI
+#define CONFIG_SMC911X		1
+#define CONFIG_SMC911X_32_BIT
+#define CONFIG_SMC911X_BASE     0x2C000000
+
+#endif /* (CONFIG_CMD_NET) */
+
 #endif				/* __CONFIG_H */
-- 
1.6.0.4