ENGR00120206 iMX28 Enable Ethernet and MMC boot supportrel_imx_2.6.31_10.02.00

Enable Ethernet and MMC boot support for imx28-evk

Signed-off-by: Frank Li <frank.li@freescale.com>

2 files changed, 86 insertions, 35 deletions

diff --git a/board/freescale/mx28/mx28.c b/board/freescale/mx28/mx28.c
index fa53e82..1d22de0 100644
--- a/board/freescale/mx28/mx28.c
+++ b/board/freescale/mx28/mx28.c
@@ -1,8 +1,5 @@
 /*
- *
- * (c) 2008 Embedded Alley Solutions, Inc.
- *
- * (C) Copyright 2009 Freescale Semiconductor, Inc.
+ * (C) Copyright 2009-2010 Freescale Semiconductor, Inc.
  *
  * See file CREDITS for list of people who contributed to this
  * project.
@@ -23,25 +20,67 @@
  * MA 02111-1307 USA
  */
 
-
 #include <common.h>
 #include <asm/arch/mx28.h>
-#include <asm/arch/clkctrl.h>
-#include <asm/arch/pinmux.h>
-#include <asm/arch/spi.h>
+#include <asm/arch/regs-pinctrl.h>
+#include <asm/arch/pinctrl.h>
+
+/* This should be removed after it's added into mach-types.h */
+#ifndef MACH_TYPE_MX28EVK
+#define MACH_TYPE_MX28EVK	2531
+#endif
 
 DECLARE_GLOBAL_DATA_PTR;
 
-#define KHz	1000
-#define MHz	(1000 * KHz)
+/* MMC pins */
+static struct pin_desc mmc_pins_desc[] = {
+	{ PINID_SSP0_DATA0, PIN_FUN1, PAD_12MA, PAD_3V3, 1 },
+	{ PINID_SSP0_DATA1, PIN_FUN1, PAD_12MA, PAD_3V3, 1 },
+	{ PINID_SSP0_DATA2, PIN_FUN1, PAD_12MA, PAD_3V3, 1 },
+	{ PINID_SSP0_DATA3, PIN_FUN1, PAD_12MA, PAD_3V3, 1 },
+	{ PINID_SSP0_DATA4, PIN_FUN1, PAD_12MA, PAD_3V3, 1 },
+	{ PINID_SSP0_DATA5, PIN_FUN1, PAD_12MA, PAD_3V3, 1 },
+	{ PINID_SSP0_DATA6, PIN_FUN1, PAD_12MA, PAD_3V3, 1 },
+	{ PINID_SSP0_DATA7, PIN_FUN1, PAD_12MA, PAD_3V3, 1 },
+	{ PINID_SSP0_CMD, PIN_FUN1, PAD_12MA, PAD_3V3, 1 },
+	{ PINID_SSP0_DETECT, PIN_FUN1, PAD_12MA, PAD_3V3, 1 },
+	{ PINID_SSP0_SCK, PIN_FUN1, PAD_12MA, PAD_3V3, 1 }
+};
+
+static struct pin_group mmc_pins = {
+	.pins		= mmc_pins_desc,
+	.nr_pins	= ARRAY_SIZE(mmc_pins_desc)
+};
+
+/* ENET pins */
+static struct pin_desc enet_pins_desc[] = {
+	{ PINID_ENET0_MDC, PIN_FUN1, PAD_8MA, PAD_3V3, 1 },
+	{ PINID_ENET0_MDIO, PIN_FUN1, PAD_8MA, PAD_3V3, 1 },
+	{ PINID_ENET0_RX_EN, PIN_FUN1, PAD_8MA, PAD_3V3, 1 },
+	{ PINID_ENET0_RXD0, PIN_FUN1, PAD_8MA, PAD_3V3, 1 },
+	{ PINID_ENET0_RXD1, PIN_FUN1, PAD_8MA, PAD_3V3, 1 },
+	{ PINID_ENET0_TX_EN, PIN_FUN1, PAD_8MA, PAD_3V3, 1 },
+	{ PINID_ENET0_TXD0, PIN_FUN1, PAD_8MA, PAD_3V3, 1 },
+	{ PINID_ENET0_TXD1, PIN_FUN1, PAD_8MA, PAD_3V3, 1 },
+	{ PINID_ENET_CLK, PIN_FUN1, PAD_8MA, PAD_3V3, 1 }
+};
+
+static struct pin_group enet_pins = {
+	.pins		= enet_pins_desc,
+	.nr_pins	= ARRAY_SIZE(enet_pins_desc)
+};
 
-static void set_pinmux(void)
+/*
+ * Functions
+ */
+int board_init(void)
 {
-}
+	/* Will change it for MX28 EVK later */
+	gd->bd->bi_arch_number = MACH_TYPE_MX28EVK;
+	/* Adress of boot parameters */
+	gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
 
-#define IO_DIVIDER	18
-static void set_clocks(void)
-{
+	return 0;
 }
 
 int dram_init(void)
@@ -52,31 +91,43 @@ int dram_init(void)
 	return 0;
 }
 
-int board_init(void)
+u32 ssp_mmc_is_wp(void)
 {
-	/* arch number of Freescale STMP 378x development board */
-	/* gd->bd->bi_arch_number = MACH_TYPE_MX28_EVK; */
-
-	/* adress of boot parameters */
-	gd->bd->bi_boot_params = LINUX_BOOT_PARAM_ADDR;
-
-	set_clocks();
+	return pin_gpio_get(PINID_SSP1_SCK);
+}
 
-	set_pinmux();
+void ssp_mmc_board_init(void)
+{
+	/* Set up MMC pins */
+	pin_set_group(&mmc_pins);
 
-	/* Configure SPI on SSP1 or SSP2 */
-	spi_init();
+	/* Power on the card slot */
+	pin_set_type(PINID_PWM3, PIN_GPIO);
+	pin_gpio_direction(PINID_PWM3, 1);
+	pin_gpio_set(PINID_PWM3, 0);
 
-	return 0;
-}
+	/* Wait 10 ms for card ramping up */
+	udelay(10000);
 
-int misc_init_r(void)
-{
-	return 0;
+	/* Set up WP pin */
+	pin_set_type(PINID_SSP1_SCK, PIN_GPIO);
+	pin_gpio_direction(PINID_SSP1_SCK, 0);
 }
 
-int checkboard(void)
+void enet_board_init(void)
 {
-	printf("Board: MX28 EVK \n");
-	return 0;
+	/* Set up ENET pins */
+	pin_set_group(&enet_pins);
+
+	/* Power on the external phy */
+	pin_set_type(PINID_SSP1_DATA3, PIN_GPIO);
+	pin_gpio_direction(PINID_SSP1_DATA3, 1);
+	pin_gpio_set(PINID_SSP1_DATA3, 0);
+
+	/* Reset the external phy */
+	pin_set_type(PINID_ENET0_RX_CLK, PIN_GPIO);
+	pin_gpio_direction(PINID_ENET0_RX_CLK, 1);
+	pin_gpio_set(PINID_ENET0_RX_CLK, 0);
+	udelay(200);
+	pin_gpio_set(PINID_ENET0_RX_CLK, 1);
 }
diff --git a/board/freescale/mx28/u-boot.lds b/board/freescale/mx28/u-boot.lds
index 82cb8e3..b7efe6d 100644
--- a/board/freescale/mx28/u-boot.lds
+++ b/board/freescale/mx28/u-boot.lds
@@ -30,7 +30,7 @@ SECTIONS
 	. = ALIGN(4);
 	.text	:
 	{
-	  cpu/arm926ejs/start.o	(.text)
+	  cpu/arm926ejs/start.o (.text)
 	  *(.text)
 	}
 	.rodata : { *(.rodata) }