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Diffstat (limited to 'board/keymile/km_arm/km_arm.c')
-rw-r--r--board/keymile/km_arm/km_arm.c324
1 files changed, 324 insertions, 0 deletions
diff --git a/board/keymile/km_arm/km_arm.c b/board/keymile/km_arm/km_arm.c
new file mode 100644
index 0000000..53cf474
--- /dev/null
+++ b/board/keymile/km_arm/km_arm.c
@@ -0,0 +1,324 @@
+/*
+ * (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 *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
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