| /* |
| * (C) Copyright 2009 |
| * Marvell Semiconductor <www.marvell.com> |
| * Prafulla Wadaskar <prafulla@marvell.com> |
| * |
| * (C) Copyright 2009 |
| * Stefan Roese, DENX Software Engineering, sr@denx.de. |
| * |
| * (C) Copyright 2010 |
| * Heiko Schocher, DENX Software Engineering, hs@denx.de. |
| * |
| * See file CREDITS for list of people who contributed to this |
| * project. |
| * |
| * 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. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, |
| * MA 02110-1301 USA |
| */ |
| |
| #include <common.h> |
| #include <i2c.h> |
| #include <nand.h> |
| #include <netdev.h> |
| #include <miiphy.h> |
| #include <asm/io.h> |
| #include <asm/arch/kirkwood.h> |
| #include <asm/arch/mpp.h> |
| |
| #include "../common/common.h" |
| |
| DECLARE_GLOBAL_DATA_PTR; |
| |
| static int io_dev; |
| extern I2C_MUX_DEVICE *i2c_mux_ident_muxstring (uchar *buf); |
| |
| /* Multi-Purpose Pins Functionality configuration */ |
| u32 kwmpp_config[] = { |
| MPP0_NF_IO2, |
| MPP1_NF_IO3, |
| MPP2_NF_IO4, |
| MPP3_NF_IO5, |
| MPP4_NF_IO6, |
| MPP5_NF_IO7, |
| MPP6_SYSRST_OUTn, |
| MPP7_PEX_RST_OUTn, |
| #if defined(CONFIG_SOFT_I2C) |
| MPP8_GPIO, /* SDA */ |
| MPP9_GPIO, /* SCL */ |
| #endif |
| #if defined(CONFIG_HARD_I2C) |
| MPP8_TW_SDA, |
| MPP9_TW_SCK, |
| #endif |
| MPP10_UART0_TXD, |
| MPP11_UART0_RXD, |
| MPP12_GPO, /* Reserved */ |
| MPP13_UART1_TXD, |
| MPP14_UART1_RXD, |
| MPP15_GPIO, /* Not used */ |
| MPP16_GPIO, /* Not used */ |
| MPP17_GPIO, /* Reserved */ |
| MPP18_NF_IO0, |
| MPP19_NF_IO1, |
| MPP20_GPIO, |
| MPP21_GPIO, |
| MPP22_GPIO, |
| MPP23_GPIO, |
| MPP24_GPIO, |
| MPP25_GPIO, |
| MPP26_GPIO, |
| MPP27_GPIO, |
| MPP28_GPIO, |
| MPP29_GPIO, |
| MPP30_GPIO, |
| MPP31_GPIO, |
| MPP32_GPIO, |
| MPP33_GPIO, |
| MPP34_GPIO, /* CDL1 (input) */ |
| MPP35_GPIO, /* CDL2 (input) */ |
| MPP36_GPIO, /* MAIN_IRQ (input) */ |
| MPP37_GPIO, /* BOARD_LED */ |
| MPP38_GPIO, /* Piggy3 LED[1] */ |
| MPP39_GPIO, /* Piggy3 LED[2] */ |
| MPP40_GPIO, /* Piggy3 LED[3] */ |
| MPP41_GPIO, /* Piggy3 LED[4] */ |
| MPP42_GPIO, /* Piggy3 LED[5] */ |
| MPP43_GPIO, /* Piggy3 LED[6] */ |
| MPP44_GPIO, /* Piggy3 LED[7] */ |
| MPP45_GPIO, /* Piggy3 LED[8] */ |
| MPP46_GPIO, /* Reserved */ |
| MPP47_GPIO, /* Reserved */ |
| MPP48_GPIO, /* Reserved */ |
| MPP49_GPIO, /* SW_INTOUTn */ |
| 0 |
| }; |
| |
| int ethernet_present(void) |
| { |
| uchar buf; |
| int ret = 0; |
| |
| if (i2c_read(0x10, 2, 1, &buf, 1) != 0) { |
| printf ("%s: Error reading Boco\n", __FUNCTION__); |
| return -1; |
| } |
| if ((buf & 0x40) == 0x40) { |
| ret = 1; |
| } |
| return ret; |
| } |
| |
| int misc_init_r(void) |
| { |
| I2C_MUX_DEVICE *i2cdev; |
| char *str; |
| int mach_type; |
| |
| /* add I2C Bus for I/O Expander */ |
| i2cdev = i2c_mux_ident_muxstring((uchar *)"pca9554a:70:a"); |
| io_dev = i2cdev->busid; |
| puts("Piggy:"); |
| if (ethernet_present() == 0) |
| puts (" not"); |
| puts(" present\n"); |
| |
| str = getenv("mach_type"); |
| if (str != NULL) { |
| mach_type = simple_strtoul(str, NULL, 10); |
| printf("Overwriting MACH_TYPE with %d!!!\n", mach_type); |
| gd->bd->bi_arch_number = mach_type; |
| } |
| return 0; |
| } |
| |
| int board_init(void) |
| { |
| u32 tmp; |
| |
| kirkwood_mpp_conf(kwmpp_config); |
| |
| /* |
| * The FLASH_GPIO_PIN switches between using a |
| * NAND or a SPI FLASH. Set this pin on start |
| * to NAND mode. |
| */ |
| tmp = readl(KW_GPIO0_BASE); |
| writel(tmp | FLASH_GPIO_PIN , KW_GPIO0_BASE); |
| tmp = readl(KW_GPIO0_BASE + 4); |
| writel(tmp & (~FLASH_GPIO_PIN) , KW_GPIO0_BASE + 4); |
| printf("KM: setting NAND mode\n"); |
| |
| /* |
| * arch number of board |
| */ |
| gd->bd->bi_arch_number = MACH_TYPE_SUEN3; |
| |
| /* address of boot parameters */ |
| gd->bd->bi_boot_params = kw_sdram_bar(0) + 0x100; |
| |
| #if defined(CONFIG_SOFT_I2C) |
| /* init the GPIO for I2C Bitbang driver */ |
| kw_gpio_set_valid(SUEN3_SDA_PIN, 1); |
| kw_gpio_set_valid(SUEN3_SCL_PIN, 1); |
| kw_gpio_direction_output(SUEN3_SDA_PIN, 0); |
| kw_gpio_direction_output(SUEN3_SCL_PIN, 0); |
| #endif |
| #if defined(CONFIG_SYS_EEPROM_WREN) |
| kw_gpio_set_valid(SUEN3_ENV_WP, 38); |
| kw_gpio_direction_output(SUEN3_ENV_WP, 1); |
| #endif |
| return 0; |
| } |
| |
| #if defined(CONFIG_CMD_SF) |
| int do_spi_toggle(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) |
| { |
| u32 tmp; |
| if (argc < 2) { |
| cmd_usage(cmdtp); |
| return 1; |
| } |
| |
| if ((strcmp(argv[1], "off") == 0)) { |
| printf("SPI FLASH disabled, NAND enabled\n"); |
| /* Multi-Purpose Pins Functionality configuration */ |
| kwmpp_config[0] = MPP0_NF_IO2; |
| kwmpp_config[1] = MPP1_NF_IO3; |
| kwmpp_config[2] = MPP2_NF_IO4; |
| kwmpp_config[3] = MPP3_NF_IO5; |
| |
| kirkwood_mpp_conf(kwmpp_config); |
| tmp = readl(KW_GPIO0_BASE); |
| writel(tmp | FLASH_GPIO_PIN , KW_GPIO0_BASE); |
| } else if ((strcmp(argv[1], "on") == 0)) { |
| printf("SPI FLASH enabled, NAND disabled\n"); |
| /* Multi-Purpose Pins Functionality configuration */ |
| kwmpp_config[0] = MPP0_SPI_SCn; |
| kwmpp_config[1] = MPP1_SPI_MOSI; |
| kwmpp_config[2] = MPP2_SPI_SCK; |
| kwmpp_config[3] = MPP3_SPI_MISO; |
| |
| kirkwood_mpp_conf(kwmpp_config); |
| tmp = readl(KW_GPIO0_BASE); |
| writel(tmp & (~FLASH_GPIO_PIN) , KW_GPIO0_BASE); |
| } else { |
| cmd_usage(cmdtp); |
| return 1; |
| } |
| |
| return 0; |
| } |
| |
| U_BOOT_CMD( |
| spitoggle, 2, 0, do_spi_toggle, |
| "En-/disable SPI FLASH access", |
| "<on|off> - Enable (on) or disable (off) SPI FLASH access\n" |
| ); |
| #endif |
| |
| int dram_init(void) |
| { |
| int i; |
| |
| for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) { |
| gd->bd->bi_dram[i].start = kw_sdram_bar(i); |
| gd->bd->bi_dram[i].size = get_ram_size((long *)kw_sdram_bar(i), |
| kw_sdram_bs(i)); |
| } |
| return 0; |
| } |
| |
| /* Configure and enable MV88E1118 PHY */ |
| void reset_phy(void) |
| { |
| char *name = "egiga0"; |
| |
| if (miiphy_set_current_dev(name)) |
| return; |
| |
| /* reset the phy */ |
| miiphy_reset(name, CONFIG_PHY_BASE_ADR); |
| } |
| |
| #if defined(CONFIG_HUSH_INIT_VAR) |
| int hush_init_var (void) |
| { |
| ivm_read_eeprom (); |
| return 0; |
| } |
| #endif |
| |
| #if defined(CONFIG_BOOTCOUNT_LIMIT) |
| void bootcount_store (ulong a) |
| { |
| volatile ulong *save_addr; |
| volatile ulong size = 0; |
| int i; |
| for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) { |
| size += gd->bd->bi_dram[i].size; |
| } |
| save_addr = (ulong*)(size - BOOTCOUNT_ADDR); |
| writel(a, save_addr); |
| writel(BOOTCOUNT_MAGIC, &save_addr[1]); |
| } |
| |
| ulong bootcount_load (void) |
| { |
| volatile ulong *save_addr; |
| volatile ulong size = 0; |
| int i; |
| for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) { |
| size += gd->bd->bi_dram[i].size; |
| } |
| save_addr = (ulong*)(size - BOOTCOUNT_ADDR); |
| if (readl(&save_addr[1]) != BOOTCOUNT_MAGIC) |
| return 0; |
| else |
| return readl(save_addr); |
| } |
| #endif |
| |
| #if defined(CONFIG_SOFT_I2C) |
| void set_sda (int state) |
| { |
| I2C_ACTIVE; |
| I2C_SDA(state); |
| } |
| |
| void set_scl (int state) |
| { |
| I2C_SCL(state); |
| } |
| |
| int get_sda (void) |
| { |
| I2C_TRISTATE; |
| return I2C_READ; |
| } |
| |
| int get_scl (void) |
| { |
| return (kw_gpio_get_value(SUEN3_SCL_PIN) ? 1 : 0); |
| } |
| #endif |
| |
| #if defined(CONFIG_SYS_EEPROM_WREN) |
| int eeprom_write_enable (unsigned dev_addr, int state) |
| { |
| kw_gpio_set_value(SUEN3_ENV_WP, !state); |
| |
| return !kw_gpio_get_value(SUEN3_ENV_WP); |
| } |
| #endif |