diff options
Diffstat (limited to 'board')
| -rw-r--r-- | board/renesas/alt/Makefile | 6 | ||||
| -rw-r--r-- | board/renesas/alt/alt.c | 209 | ||||
| -rw-r--r-- | board/renesas/alt/alt_spl.c | 411 |
3 files changed, 473 insertions, 153 deletions
diff --git a/board/renesas/alt/Makefile b/board/renesas/alt/Makefile index 22ab1f43d9..53418699b2 100644 --- a/board/renesas/alt/Makefile +++ b/board/renesas/alt/Makefile @@ -6,4 +6,8 @@ # SPDX-License-Identifier: GPL-2.0 # -obj-y := alt.o qos.o ../rcar-common/common.o +ifdef CONFIG_SPL_BUILD +obj-y := alt_spl.o +else +obj-y := alt.o qos.o +endif diff --git a/board/renesas/alt/alt.c b/board/renesas/alt/alt.c index f2200ef081..7598b1a4b9 100644 --- a/board/renesas/alt/alt.c +++ b/board/renesas/alt/alt.c @@ -43,176 +43,65 @@ void s_init(void) qos_init(); } -#define TMU0_MSTP125 (1 << 25) -#define SCIF2_MSTP719 (1 << 19) -#define ETHER_MSTP813 (1 << 13) -#define IIC1_MSTP323 (1 << 23) -#define MMC0_MSTP315 (1 << 15) -#define SDHI0_MSTP314 (1 << 14) -#define SDHI1_MSTP312 (1 << 12) +#define TMU0_MSTP125 BIT(25) +#define MMC0_MSTP315 BIT(15) #define SD1CKCR 0xE6150078 -#define SD1_97500KHZ 0x7 +#define SD_97500KHZ 0x7 int board_early_init_f(void) { /* TMU */ mstp_clrbits_le32(MSTPSR1, SMSTPCR1, TMU0_MSTP125); - /* SCIF2 */ - mstp_clrbits_le32(MSTPSR7, SMSTPCR7, SCIF2_MSTP719); + /* Set SD1 to the 97.5MHz */ + writel(SD_97500KHZ, SD1CKCR); - /* ETHER */ - mstp_clrbits_le32(MSTPSR8, SMSTPCR8, ETHER_MSTP813); - - /* IIC1 / sh-i2c ch1 */ - mstp_clrbits_le32(MSTPSR3, SMSTPCR3, IIC1_MSTP323); - -#ifdef CONFIG_SH_MMCIF - /* MMC */ - mstp_clrbits_le32(MSTPSR3, SMSTPCR3, MMC0_MSTP315); -#endif - -#ifdef CONFIG_SH_SDHI - /* SDHI0, 1 */ - mstp_clrbits_le32(MSTPSR3, SMSTPCR3, SDHI0_MSTP314 | SDHI1_MSTP312); - - /* - * SD0 clock is set to 97.5MHz by default. - * Set SD1 to the 97.5MHz as well. - */ - writel(SD1_97500KHZ, SD1CKCR); -#endif return 0; } +#define ETHERNET_PHY_RESET 56 /* GPIO 1 24 */ + int board_init(void) { /* adress of boot parameters */ gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100; - /* Init PFC controller */ - r8a7794_pinmux_init(); - - /* Ether Enable */ -#if defined(CONFIG_R8A7794_ETHERNET_B) - gpio_request(GPIO_FN_ETH_CRS_DV_B, NULL); - gpio_request(GPIO_FN_ETH_RX_ER_B, NULL); - gpio_request(GPIO_FN_ETH_RXD0_B, NULL); - gpio_request(GPIO_FN_ETH_RXD1_B, NULL); - gpio_request(GPIO_FN_ETH_LINK_B, NULL); - gpio_request(GPIO_FN_ETH_REFCLK_B, NULL); - gpio_request(GPIO_FN_ETH_MDIO_B, NULL); - gpio_request(GPIO_FN_ETH_TXD1_B, NULL); - gpio_request(GPIO_FN_ETH_TX_EN_B, NULL); - gpio_request(GPIO_FN_ETH_MAGIC_B, NULL); - gpio_request(GPIO_FN_ETH_TXD0_B, NULL); - gpio_request(GPIO_FN_ETH_MDC_B, NULL); -#else - gpio_request(GPIO_FN_ETH_CRS_DV, NULL); - gpio_request(GPIO_FN_ETH_RX_ER, NULL); - gpio_request(GPIO_FN_ETH_RXD0, NULL); - gpio_request(GPIO_FN_ETH_RXD1, NULL); - gpio_request(GPIO_FN_ETH_LINK, NULL); - gpio_request(GPIO_FN_ETH_REFCLK, NULL); - gpio_request(GPIO_FN_ETH_MDIO, NULL); - gpio_request(GPIO_FN_ETH_TXD1, NULL); - gpio_request(GPIO_FN_ETH_TX_EN, NULL); - gpio_request(GPIO_FN_ETH_MAGIC, NULL); - gpio_request(GPIO_FN_ETH_TXD0, NULL); - gpio_request(GPIO_FN_ETH_MDC, NULL); -#endif - gpio_request(GPIO_FN_IRQ8, NULL); - - /* PHY reset */ - gpio_request(GPIO_GP_1_24, NULL); - gpio_direction_output(GPIO_GP_1_24, 0); + /* Force ethernet PHY out of reset */ + gpio_request(ETHERNET_PHY_RESET, "phy_reset"); + gpio_direction_output(ETHERNET_PHY_RESET, 0); mdelay(20); - gpio_set_value(GPIO_GP_1_24, 1); + gpio_direction_output(ETHERNET_PHY_RESET, 1); udelay(1); return 0; } -#define CXR24 0xEE7003C0 /* MAC address high register */ -#define CXR25 0xEE7003C8 /* MAC address low register */ -int board_eth_init(bd_t *bis) +int dram_init(void) { -#ifdef CONFIG_SH_ETHER - int ret = -ENODEV; - u32 val; - unsigned char enetaddr[6]; - - ret = sh_eth_initialize(bis); - if (!eth_env_get_enetaddr("ethaddr", enetaddr)) - return ret; + if (fdtdec_setup_memory_size() != 0) + return -EINVAL; - /* Set Mac address */ - val = enetaddr[0] << 24 | enetaddr[1] << 16 | - enetaddr[2] << 8 | enetaddr[3]; - writel(val, CXR24); - - val = enetaddr[4] << 8 | enetaddr[5]; - writel(val, CXR25); - - return ret; -#else return 0; -#endif } -int board_mmc_init(bd_t *bis) +int dram_init_banksize(void) { - int ret = -ENODEV; - -#ifdef CONFIG_SH_MMCIF - gpio_request(GPIO_GP_4_31, NULL); - gpio_set_value(GPIO_GP_4_31, 1); - - ret = mmcif_mmc_init(); -#endif - -#ifdef CONFIG_SH_SDHI - gpio_request(GPIO_FN_SD0_DATA0, NULL); - gpio_request(GPIO_FN_SD0_DATA1, NULL); - gpio_request(GPIO_FN_SD0_DATA2, NULL); - gpio_request(GPIO_FN_SD0_DATA3, NULL); - gpio_request(GPIO_FN_SD0_CLK, NULL); - gpio_request(GPIO_FN_SD0_CMD, NULL); - gpio_request(GPIO_FN_SD0_CD, NULL); - gpio_request(GPIO_FN_SD1_DATA0, NULL); - gpio_request(GPIO_FN_SD1_DATA1, NULL); - gpio_request(GPIO_FN_SD1_DATA2, NULL); - gpio_request(GPIO_FN_SD1_DATA3, NULL); - gpio_request(GPIO_FN_SD1_CLK, NULL); - gpio_request(GPIO_FN_SD1_CMD, NULL); - gpio_request(GPIO_FN_SD1_CD, NULL); - - /* SDHI 0 */ - gpio_request(GPIO_GP_2_26, NULL); - gpio_request(GPIO_GP_2_29, NULL); - gpio_direction_output(GPIO_GP_2_26, 1); - gpio_direction_output(GPIO_GP_2_29, 1); - - ret = sh_sdhi_init(CONFIG_SYS_SH_SDHI0_BASE, 0, - SH_SDHI_QUIRK_16BIT_BUF); - if (ret) - return ret; + fdtdec_setup_memory_banksize(); - /* SDHI 1 */ - gpio_request(GPIO_GP_4_26, NULL); - gpio_request(GPIO_GP_4_29, NULL); - gpio_direction_output(GPIO_GP_4_26, 1); - gpio_direction_output(GPIO_GP_4_29, 1); - - ret = sh_sdhi_init(CONFIG_SYS_SH_SDHI1_BASE, 1, 0); -#endif - return ret; + return 0; } -int dram_init(void) +/* KSZ8041RNLI */ +#define PHY_CONTROL1 0x1E +#define PHY_LED_MODE 0xC0000 +#define PHY_LED_MODE_ACK 0x4000 +int board_phy_config(struct phy_device *phydev) { - gd->ram_size = CONFIG_SYS_SDRAM_SIZE; + int ret = phy_read(phydev, MDIO_DEVAD_NONE, PHY_CONTROL1); + ret &= ~PHY_LED_MODE; + ret |= PHY_LED_MODE_ACK; + ret = phy_write(phydev, MDIO_DEVAD_NONE, PHY_CONTROL1, (u16)ret); return 0; } @@ -223,22 +112,38 @@ const struct rmobile_sysinfo sysinfo = { void reset_cpu(ulong addr) { - u8 val; + struct udevice *dev; + const u8 pmic_bus = 1; + const u8 pmic_addr = 0x58; + u8 data; + int ret; - i2c_set_bus_num(1); /* PowerIC connected to ch1 */ - i2c_read(CONFIG_SYS_I2C_POWERIC_ADDR, 0x13, 1, &val, 1); - val |= 0x02; - i2c_write(CONFIG_SYS_I2C_POWERIC_ADDR, 0x13, 1, &val, 1); + ret = i2c_get_chip_for_busnum(pmic_bus, pmic_addr, 1, &dev); + if (ret) + hang(); + + ret = dm_i2c_read(dev, 0x13, &data, 1); + if (ret) + hang(); + + data |= BIT(1); + + ret = dm_i2c_write(dev, 0x13, &data, 1); + if (ret) + hang(); } -static const struct sh_serial_platdata serial_platdata = { - .base = SCIF2_BASE, - .type = PORT_SCIF, - .clk = 14745600, - .clk_mode = EXT_CLK, -}; +enum env_location env_get_location(enum env_operation op, int prio) +{ + const u32 load_magic = 0xb33fc0de; -U_BOOT_DEVICE(alt_serials) = { - .name = "serial_sh", - .platdata = &serial_platdata, -}; + /* Block environment access if loaded using JTAG */ + if ((readl(CONFIG_SPL_TEXT_BASE + 0x24) == load_magic) && + (op != ENVOP_INIT)) + return ENVL_UNKNOWN; + + if (prio) + return ENVL_UNKNOWN; + + return ENVL_SPI_FLASH; +} diff --git a/board/renesas/alt/alt_spl.c b/board/renesas/alt/alt_spl.c new file mode 100644 index 0000000000..f893a49257 --- /dev/null +++ b/board/renesas/alt/alt_spl.c @@ -0,0 +1,411 @@ +/* + * board/renesas/alt/alt_spl.c + * + * Copyright (C) 2018 Marek Vasut <marek.vasut@gmail.com> + * + * SPDX-License-Identifier: GPL-2.0 + */ + +#include <common.h> +#include <malloc.h> +#include <dm/platform_data/serial_sh.h> +#include <asm/processor.h> +#include <asm/mach-types.h> +#include <asm/io.h> +#include <linux/errno.h> +#include <asm/arch/sys_proto.h> +#include <asm/gpio.h> +#include <asm/arch/rmobile.h> +#include <asm/arch/rcar-mstp.h> + +#include <spl.h> + +#define TMU0_MSTP125 BIT(25) +#define SCIF2_MSTP719 BIT(19) +#define QSPI_MSTP917 BIT(17) + +#define SD1CKCR 0xE6150078 +#define SD_97500KHZ 0x7 + +struct reg_config { + u16 off; + u32 val; +}; + +static void dbsc_wait(u16 reg) +{ + static const u32 dbsc3_0_base = DBSC3_0_BASE; + + while (!(readl(dbsc3_0_base + reg) & BIT(0))) + ; +} + +static void spl_init_sys(void) +{ + u32 r0 = 0; + + writel(0xa5a5a500, 0xe6020004); + writel(0xa5a5a500, 0xe6030004); + + asm volatile( + /* ICIALLU - Invalidate I$ to PoU */ + "mcr 15, 0, %0, cr7, cr5, 0 \n" + /* BPIALL - Invalidate branch predictors */ + "mcr 15, 0, %0, cr7, cr5, 6 \n" + /* Set SCTLR[IZ] */ + "mrc 15, 0, %0, cr1, cr0, 0 \n" + "orr %0, #0x1800 \n" + "mcr 15, 0, %0, cr1, cr0, 0 \n" + "isb sy \n" + :"=r"(r0)); +} + +static void spl_init_pfc(void) +{ + static const struct reg_config pfc_with_unlock[] = { + { 0x0090, 0x00000000 }, + { 0x0094, 0x00000000 }, + { 0x0098, 0x00000000 }, + { 0x0020, 0x00000000 }, + { 0x0024, 0x00000000 }, + { 0x0028, 0x40000000 }, + { 0x002c, 0x00000155 }, + { 0x0030, 0x00000002 }, + { 0x0034, 0x00000000 }, + { 0x0038, 0x00000000 }, + { 0x003c, 0x00000000 }, + { 0x0040, 0x60000000 }, + { 0x0044, 0x36dab6db }, + { 0x0048, 0x926da012 }, + { 0x004c, 0x0008c383 }, + { 0x0050, 0x00000000 }, + { 0x0054, 0x00000140 }, + { 0x0004, 0xffffffff }, + { 0x0008, 0x00ec3fff }, + { 0x000c, 0x5bffffff }, + { 0x0010, 0x01bfe1ff }, + { 0x0014, 0x5bffffff }, + { 0x0018, 0x0f4b200f }, + { 0x001c, 0x03ffffff }, + }; + + static const struct reg_config pfc_without_unlock[] = { + { 0x0100, 0x00000000 }, + { 0x0104, 0x4203fc00 }, + { 0x0108, 0x00000000 }, + { 0x010c, 0x159007ff }, + { 0x0110, 0x80000000 }, + { 0x0114, 0x00de481f }, + { 0x0118, 0x00000000 }, + }; + + static const struct reg_config pfc_with_unlock2[] = { + { 0x0060, 0xffffffff }, + { 0x0064, 0xfffff000 }, + { 0x0068, 0x55555500 }, + { 0x006c, 0xffffff00 }, + { 0x0070, 0x00000000 }, + }; + + static const u32 pfc_base = 0xe6060000; + + unsigned int i; + + for (i = 0; i < ARRAY_SIZE(pfc_with_unlock); i++) { + writel(~pfc_with_unlock[i].val, pfc_base); + writel(pfc_with_unlock[i].val, + pfc_base | pfc_with_unlock[i].off); + } + + for (i = 0; i < ARRAY_SIZE(pfc_without_unlock); i++) + writel(pfc_without_unlock[i].val, + pfc_base | pfc_without_unlock[i].off); + + for (i = 0; i < ARRAY_SIZE(pfc_with_unlock2); i++) { + writel(~pfc_with_unlock2[i].val, pfc_base); + writel(pfc_with_unlock2[i].val, + pfc_base | pfc_with_unlock2[i].off); + } +} + +static void spl_init_gpio(void) +{ + static const u16 gpio_offs[] = { + 0x1000, 0x2000, 0x3000, 0x4000, 0x5000 + }; + + static const struct reg_config gpio_set[] = { + { 0x2000, 0x24000000 }, + { 0x4000, 0xa4000000 }, + { 0x5000, 0x0004c000 }, + }; + + static const struct reg_config gpio_clr[] = { + { 0x1000, 0x01000000 }, + { 0x2000, 0x24000000 }, + { 0x3000, 0x00000000 }, + { 0x4000, 0xa4000000 }, + { 0x5000, 0x0084c380 }, + }; + + static const u32 gpio_base = 0xe6050000; + + unsigned int i; + + for (i = 0; i < ARRAY_SIZE(gpio_offs); i++) + writel(0, gpio_base | 0x20 | gpio_offs[i]); + + for (i = 0; i < ARRAY_SIZE(gpio_offs); i++) + writel(0, gpio_base | 0x00 | gpio_offs[i]); + + for (i = 0; i < ARRAY_SIZE(gpio_set); i++) + writel(gpio_set[i].val, gpio_base | 0x08 | gpio_set[i].off); + + for (i = 0; i < ARRAY_SIZE(gpio_clr); i++) + writel(gpio_clr[i].val, gpio_base | 0x04 | gpio_clr[i].off); +} + +static void spl_init_lbsc(void) +{ + static const struct reg_config lbsc_config[] = { + { 0x00, 0x00000020 }, + { 0x08, 0x00002020 }, + { 0x30, 0x2a103320 }, + { 0x38, 0xff70ff70 }, + }; + + static const u16 lbsc_offs[] = { + 0x80, 0x84, 0x88, 0x8c, 0xa0, 0xc0, 0xc4, 0xc8 + }; + + static const u32 lbsc_base = 0xfec00200; + + unsigned int i; + + for (i = 0; i < ARRAY_SIZE(lbsc_config); i++) { + writel(lbsc_config[i].val, + lbsc_base | lbsc_config[i].off); + writel(lbsc_config[i].val, + lbsc_base | (lbsc_config[i].off + 4)); + } + + for (i = 0; i < ARRAY_SIZE(lbsc_offs); i++) + writel(0, lbsc_base | lbsc_offs[i]); +} + +static void spl_init_dbsc(void) +{ + static const struct reg_config dbsc_config1[] = { + { 0x0018, 0x21000000 }, + { 0x0018, 0x11000000 }, + { 0x0018, 0x10000000 }, + { 0x0280, 0x0000a55a }, + { 0x0290, 0x00000001 }, + { 0x02a0, 0x80000000 }, + { 0x0290, 0x00000004 }, + }; + + static const struct reg_config dbsc_config2[] = { + { 0x0290, 0x00000006 }, + { 0x02a0, 0x0005c000 }, + }; + + static const struct reg_config dbsc_config4[] = { + { 0x0290, 0x00000010 }, + { 0x02a0, 0xf00464db }, + { 0x0290, 0x00000061 }, + { 0x02a0, 0x0000006d }, + { 0x0290, 0x00000001 }, + { 0x02a0, 0x00000073 }, + { 0x0020, 0x00000007 }, + { 0x0024, 0x0f030a02 }, + { 0x0030, 0x00000001 }, + { 0x00b0, 0x00000000 }, + { 0x0040, 0x00000009 }, + { 0x0044, 0x00000007 }, + { 0x0048, 0x00000000 }, + { 0x0050, 0x00000009 }, + { 0x0054, 0x000a0009 }, + { 0x0058, 0x00000021 }, + { 0x005c, 0x00000018 }, + { 0x0060, 0x00000005 }, + { 0x0064, 0x0000001b }, + { 0x0068, 0x00000007 }, + { 0x006c, 0x0000000a }, + { 0x0070, 0x00000009 }, + { 0x0074, 0x00000010 }, + { 0x0078, 0x000000ae }, + { 0x007c, 0x00140005 }, + { 0x0080, 0x00050004 }, + { 0x0084, 0x50213005 }, + { 0x0088, 0x000c0000 }, + { 0x008c, 0x00000200 }, + { 0x0090, 0x00000040 }, + { 0x0100, 0x00000001 }, + { 0x00c0, 0x00020001 }, + { 0x00c8, 0x20082008 }, + { 0x0380, 0x00020003 }, + { 0x0390, 0x0000001f }, + }; + + static const struct reg_config dbsc_config5[] = { + { 0x0244, 0x00000011 }, + { 0x0290, 0x00000003 }, + { 0x02a0, 0x0300c4e1 }, + { 0x0290, 0x00000023 }, + { 0x02a0, 0x00fcb6d0 }, + { 0x0290, 0x00000011 }, + { 0x02a0, 0x1000040b }, + { 0x0290, 0x00000012 }, + { 0x02a0, 0x85589955 }, + { 0x0290, 0x00000013 }, + { 0x02a0, 0x1a852400 }, + { 0x0290, 0x00000014 }, + { 0x02a0, 0x300210b4 }, + { 0x0290, 0x00000015 }, + { 0x02a0, 0x00000b50 }, + { 0x0290, 0x00000016 }, + { 0x02a0, 0x00000006 }, + { 0x0290, 0x00000017 }, + { 0x02a0, 0x00000010 }, + { 0x0290, 0x0000001a }, + { 0x02a0, 0x910035c7 }, + { 0x0290, 0x00000004 }, + }; + + static const struct reg_config dbsc_config6[] = { + { 0x0290, 0x00000001 }, + { 0x02a0, 0x00000181 }, + { 0x0018, 0x11000000 }, + { 0x0290, 0x00000004 }, + }; + + static const struct reg_config dbsc_config7[] = { + { 0x0290, 0x00000001 }, + { 0x02a0, 0x0000fe01 }, + { 0x0304, 0x00000000 }, + { 0x00f4, 0x01004c20 }, + { 0x00f8, 0x014000aa }, + { 0x00e0, 0x00000140 }, + { 0x00e4, 0x00081450 }, + { 0x00e8, 0x00010000 }, + { 0x0290, 0x00000004 }, + }; + + static const struct reg_config dbsc_config8[] = { + { 0x0014, 0x00000001 }, + { 0x0010, 0x00000001 }, + { 0x0280, 0x00000000 }, + }; + + static const u32 dbsc3_0_base = DBSC3_0_BASE; + unsigned int i; + + for (i = 0; i < ARRAY_SIZE(dbsc_config1); i++) + writel(dbsc_config1[i].val, dbsc3_0_base | dbsc_config1[i].off); + + dbsc_wait(0x2a0); + + for (i = 0; i < ARRAY_SIZE(dbsc_config2); i++) + writel(dbsc_config2[i].val, dbsc3_0_base | dbsc_config2[i].off); + + for (i = 0; i < ARRAY_SIZE(dbsc_config4); i++) + writel(dbsc_config4[i].val, dbsc3_0_base | dbsc_config4[i].off); + + dbsc_wait(0x240); + + for (i = 0; i < ARRAY_SIZE(dbsc_config5); i++) + writel(dbsc_config5[i].val, dbsc3_0_base | dbsc_config5[i].off); + + dbsc_wait(0x2a0); + + for (i = 0; i < ARRAY_SIZE(dbsc_config6); i++) + writel(dbsc_config6[i].val, dbsc3_0_base | dbsc_config6[i].off); + + dbsc_wait(0x2a0); + + for (i = 0; i < ARRAY_SIZE(dbsc_config7); i++) + writel(dbsc_config7[i].val, dbsc3_0_base | dbsc_config7[i].off); + + dbsc_wait(0x2a0); + + for (i = 0; i < ARRAY_SIZE(dbsc_config8); i++) + writel(dbsc_config8[i].val, dbsc3_0_base | dbsc_config8[i].off); + +} + +static void spl_init_qspi(void) +{ + mstp_clrbits_le32(MSTPSR9, SMSTPCR9, QSPI_MSTP917); + + static const u32 qspi_base = 0xe6b10000; + + writeb(0x08, qspi_base + 0x00); + writeb(0x00, qspi_base + 0x01); + writeb(0x06, qspi_base + 0x02); + writeb(0x01, qspi_base + 0x0a); + writeb(0x00, qspi_base + 0x0b); + writeb(0x00, qspi_base + 0x0c); + writeb(0x00, qspi_base + 0x0d); + writeb(0x00, qspi_base + 0x0e); + + writew(0xe080, qspi_base + 0x10); + + writeb(0xc0, qspi_base + 0x18); + writeb(0x00, qspi_base + 0x18); + writeb(0x00, qspi_base + 0x08); + writeb(0x48, qspi_base + 0x00); +} + +void board_init_f(ulong dummy) +{ + mstp_clrbits_le32(MSTPSR1, SMSTPCR1, TMU0_MSTP125); + mstp_clrbits_le32(MSTPSR7, SMSTPCR7, SCIF2_MSTP719); + + /* Set SD1 to the 97.5MHz */ + writel(SD_97500KHZ, SD1CKCR); + + spl_init_sys(); + spl_init_pfc(); + spl_init_gpio(); + spl_init_lbsc(); + spl_init_dbsc(); + spl_init_qspi(); +} + +void spl_board_init(void) +{ + /* UART clocks enabled and gd valid - init serial console */ + preloader_console_init(); +} + +void board_boot_order(u32 *spl_boot_list) +{ + const u32 jtag_magic = 0x1337c0de; + const u32 load_magic = 0xb33fc0de; + + /* + * If JTAG probe sets special word at 0xe6300020, then it must + * put U-Boot into RAM and SPL will start it from RAM. + */ + if (readl(CONFIG_SPL_TEXT_BASE + 0x20) == jtag_magic) { + printf("JTAG boot detected!\n"); + + while (readl(CONFIG_SPL_TEXT_BASE + 0x24) != load_magic) + ; + + spl_boot_list[0] = BOOT_DEVICE_RAM; + spl_boot_list[1] = BOOT_DEVICE_NONE; + + return; + } + + /* Boot from SPI NOR with YMODEM UART fallback. */ + spl_boot_list[0] = BOOT_DEVICE_SPI; + spl_boot_list[1] = BOOT_DEVICE_UART; + spl_boot_list[2] = BOOT_DEVICE_NONE; +} + +void reset_cpu(ulong addr) +{ +} |