1 files changed, 68 insertions, 63 deletions

diff --git a/board/ti/am335x/board.c b/board/ti/am335x/board.c
index fdbe26cde1..728afc2ba3 100644
--- a/board/ti/am335x/board.c
+++ b/board/ti/am335x/board.c
@@ -5,15 +5,7 @@
  *
  * Copyright (C) 2011, Texas Instruments, Incorporated - http://www.ti.com/
  *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR /PURPOSE.  See the
- * GNU General Public License for more details.
+ * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
@@ -27,6 +19,7 @@
 #include <asm/arch/gpio.h>
 #include <asm/arch/mmc_host_def.h>
 #include <asm/arch/sys_proto.h>
+#include <asm/arch/mem.h>
 #include <asm/io.h>
 #include <asm/emif.h>
 #include <asm/gpio.h>
@@ -48,43 +41,10 @@ static struct wd_timer *wdtimer = (struct wd_timer *)WDT_BASE;
 
 static struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE;
 
-static struct am335x_baseboard_id __attribute__((section (".data"))) header;
-
-static inline int board_is_bone(void)
-{
-	return !strncmp(header.name, "A335BONE", HDR_NAME_LEN);
-}
-
-static inline int board_is_bone_lt(void)
-{
-	return !strncmp(header.name, "A335BNLT", HDR_NAME_LEN);
-}
-
-static inline int board_is_evm_sk(void)
-{
-	return !strncmp("A335X_SK", header.name, HDR_NAME_LEN);
-}
-
-static inline int board_is_idk(void)
-{
-	return !strncmp(header.config, "SKU#02", 6);
-}
-
-static int __maybe_unused board_is_gp_evm(void)
-{
-	return !strncmp("A33515BB", header.name, 8);
-}
-
-int board_is_evm_15_or_later(void)
-{
-	return (!strncmp("A33515BB", header.name, 8) &&
-		strncmp("1.5", header.version, 3) <= 0);
-}
-
 /*
  * Read header information from EEPROM into global structure.
  */
-static int read_eeprom(void)
+static int read_eeprom(struct am335x_baseboard_id *header)
 {
 	/* Check if baseboard eeprom is available */
 	if (i2c_probe(CONFIG_SYS_I2C_EEPROM_ADDR)) {
@@ -94,28 +54,28 @@ static int read_eeprom(void)
 	}
 
 	/* read the eeprom using i2c */
-	if (i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, 0, 2, (uchar *)&header,
-							sizeof(header))) {
+	if (i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, 0, 2, (uchar *)header,
+		     sizeof(struct am335x_baseboard_id))) {
 		puts("Could not read the EEPROM; something fundamentally"
 			" wrong on the I2C bus.\n");
 		return -EIO;
 	}
 
-	if (header.magic != 0xEE3355AA) {
+	if (header->magic != 0xEE3355AA) {
 		/*
 		 * read the eeprom using i2c again,
 		 * but use only a 1 byte address
 		 */
-		if (i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, 0, 1,
-					(uchar *)&header, sizeof(header))) {
+		if (i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, 0, 1, (uchar *)header,
+			     sizeof(struct am335x_baseboard_id))) {
 			puts("Could not read the EEPROM; something "
 				"fundamentally wrong on the I2C bus.\n");
 			return -EIO;
 		}
 
-		if (header.magic != 0xEE3355AA) {
+		if (header->magic != 0xEE3355AA) {
 			printf("Incorrect magic number (0x%x) in EEPROM\n",
-					header.magic);
+					header->magic);
 			return -EINVAL;
 		}
 	}
@@ -123,7 +83,7 @@ static int read_eeprom(void)
 	return 0;
 }
 
-#ifdef CONFIG_SPL_BUILD
+#if defined(CONFIG_SPL_BUILD) || defined(CONFIG_NOR_BOOT)
 static const struct ddr_data ddr2_data = {
 	.datardsratio0 = ((MT47H128M16RT25E_RD_DQS<<30) |
 			  (MT47H128M16RT25E_RD_DQS<<20) |
@@ -289,12 +249,32 @@ int spl_start_uboot(void)
  */
 void s_init(void)
 {
+	__maybe_unused struct am335x_baseboard_id header;
+
+	/*
+	 * The ROM will only have set up sufficient pinmux to allow for the
+	 * first 4KiB NOR to be read, we must finish doing what we know of
+	 * the NOR mux in this space in order to continue.
+	 */
+#ifdef CONFIG_NOR_BOOT
+	asm("stmfd      sp!, {r2 - r4}");
+	asm("movw       r4, #0x8A4");
+	asm("movw       r3, #0x44E1");
+	asm("orr        r4, r4, r3, lsl #16");
+	asm("mov        r2, #9");
+	asm("mov        r3, #8");
+	asm("gpmc_mux:  str     r2, [r4], #4");
+	asm("subs       r3, r3, #1");
+	asm("bne        gpmc_mux");
+	asm("ldmfd      sp!, {r2 - r4}");
+#endif
+
+#ifdef CONFIG_SPL_BUILD
 	/*
 	 * Save the boot parameters passed from romcode.
 	 * We cannot delay the saving further than this,
 	 * to prevent overwrites.
 	 */
-#ifdef CONFIG_SPL_BUILD
 	save_omap_boot_params();
 #endif
 
@@ -308,7 +288,7 @@ void s_init(void)
 	while (readl(&wdtimer->wdtwwps) != 0x0)
 		;
 
-#ifdef CONFIG_SPL_BUILD
+#if defined(CONFIG_SPL_BUILD) || defined(CONFIG_NOR_BOOT)
 	/* Setup the PLLs and the clocks for the peripherals */
 	pll_init();
 
@@ -336,18 +316,25 @@ void s_init(void)
 
 	uart_soft_reset();
 
+#if defined(CONFIG_NOR_BOOT)
+	/* We want our console now. */
+	gd->baudrate = CONFIG_BAUDRATE;
+	serial_init();
+	gd->have_console = 1;
+#else
 	gd = &gdata;
 
 	preloader_console_init();
+#endif
 
 	/* Initalize the board header */
 	enable_i2c0_pin_mux();
 	i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
-	if (read_eeprom() < 0)
+	if (read_eeprom(&header) < 0)
 		puts("Could not get board ID.\n");
 
 	enable_board_pin_mux(&header);
-	if (board_is_evm_sk()) {
+	if (board_is_evm_sk(&header)) {
 		/*
 		 * EVM SK 1.2A and later use gpio0_7 to enable DDR3.
 		 * This is safe enough to do on older revs.
@@ -356,15 +343,15 @@ void s_init(void)
 		gpio_direction_output(GPIO_DDR_VTT_EN, 1);
 	}
 
-	if (board_is_evm_sk())
+	if (board_is_evm_sk(&header))
 		config_ddr(303, MT41J128MJT125_IOCTRL_VALUE, &ddr3_data,
 			   &ddr3_cmd_ctrl_data, &ddr3_emif_reg_data, 0);
-	else if (board_is_bone_lt())
+	else if (board_is_bone_lt(&header))
 		config_ddr(400, MT41K256M16HA125E_IOCTRL_VALUE,
 			   &ddr3_beagleblack_data,
 			   &ddr3_beagleblack_cmd_ctrl_data,
 			   &ddr3_beagleblack_emif_reg_data, 0);
-	else if (board_is_evm_15_or_later())
+	else if (board_is_evm_15_or_later(&header))
 		config_ddr(303, MT41J512M8RH125_IOCTRL_VALUE, &ddr3_evm_data,
 			   &ddr3_evm_cmd_ctrl_data, &ddr3_evm_emif_reg_data, 0);
 	else
@@ -378,14 +365,22 @@ void s_init(void)
  */
 int board_init(void)
 {
-	i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
-	if (read_eeprom() < 0)
-		puts("Could not get board ID.\n");
+#ifdef CONFIG_NOR
+	const u32 gpmc_nor[GPMC_MAX_REG] = { STNOR_GPMC_CONFIG1,
+		STNOR_GPMC_CONFIG2, STNOR_GPMC_CONFIG3, STNOR_GPMC_CONFIG4,
+		STNOR_GPMC_CONFIG5, STNOR_GPMC_CONFIG6, STNOR_GPMC_CONFIG7 };
+#endif
 
 	gd->bd->bi_boot_params = PHYS_DRAM_1 + 0x100;
 
 	gpmc_init();
 
+#ifdef CONFIG_NOR
+	/* Reconfigure CS0 for NOR instead of NAND. */
+	enable_gpmc_cs_config(gpmc_nor, &gpmc_cfg->cs[0],
+			      CONFIG_SYS_FLASH_BASE, GPMC_SIZE_16M);
+#endif
+
 	return 0;
 }
 
@@ -394,6 +389,10 @@ int board_late_init(void)
 {
 #ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
 	char safe_string[HDR_NAME_LEN + 1];
+	struct am335x_baseboard_id header;
+
+	if (read_eeprom(&header) < 0)
+		puts("Could not get board ID.\n");
 
 	/* Now set variables based on the header. */
 	strncpy(safe_string, (char *)header.name, sizeof(header.name));
@@ -443,6 +442,7 @@ static struct cpsw_platform_data cpsw_data = {
 	.ale_entries		= 1024,
 	.host_port_reg_ofs	= 0x108,
 	.hw_stats_reg_ofs	= 0x900,
+	.bd_ram_ofs		= 0x2000,
 	.mac_control		= (1 << 5),
 	.control		= cpsw_control,
 	.host_port_num		= 0,
@@ -457,6 +457,7 @@ int board_eth_init(bd_t *bis)
 	int rv, n = 0;
 	uint8_t mac_addr[6];
 	uint32_t mac_hi, mac_lo;
+	__maybe_unused struct am335x_baseboard_id header;
 
 	/* try reading mac address from efuse */
 	mac_lo = readl(&cdev->macid0l);
@@ -478,7 +479,11 @@ int board_eth_init(bd_t *bis)
 	}
 
 #ifdef CONFIG_DRIVER_TI_CPSW
-	if (board_is_bone() || board_is_bone_lt() || board_is_idk()) {
+	if (read_eeprom(&header) < 0)
+		puts("Could not get board ID.\n");
+
+	if (board_is_bone(&header) || board_is_bone_lt(&header) ||
+	    board_is_idk(&header)) {
 		writel(MII_MODE_ENABLE, &cdev->miisel);
 		cpsw_slaves[0].phy_if = cpsw_slaves[1].phy_if =
 				PHY_INTERFACE_MODE_MII;
@@ -507,7 +512,7 @@ int board_eth_init(bd_t *bis)
 #define AR8051_DEBUG_RGMII_CLK_DLY_REG	0x5
 #define AR8051_RGMII_TX_CLK_DLY		0x100
 
-	if (board_is_evm_sk() || board_is_gp_evm()) {
+	if (board_is_evm_sk(&header) || board_is_gp_evm(&header)) {
 		const char *devname;
 		devname = miiphy_get_current_dev();