summaryrefslogtreecommitdiff
path: root/cpu
diff options
context:
space:
mode:
Diffstat (limited to 'cpu')
-rw-r--r--cpu/arm926ejs/at91/at91sam9260_devices.c2
-rw-r--r--cpu/arm926ejs/davinci/Makefile1
-rw-r--r--cpu/arm926ejs/davinci/dm365.c35
-rw-r--r--cpu/arm926ejs/kirkwood/cpu.c75
-rw-r--r--cpu/arm926ejs/mx27/generic.c65
5 files changed, 177 insertions, 1 deletions
diff --git a/cpu/arm926ejs/at91/at91sam9260_devices.c b/cpu/arm926ejs/at91/at91sam9260_devices.c
index 5309ba2..f86cb99 100644
--- a/cpu/arm926ejs/at91/at91sam9260_devices.c
+++ b/cpu/arm926ejs/at91/at91sam9260_devices.c
@@ -75,7 +75,7 @@ void at91_serial_hw_init(void)
#endif
}
-#ifdef CONFIG_HAS_DATAFLASH
+#if defined(CONFIG_HAS_DATAFLASH) || defined(CONFIG_ATMEL_SPI)
void at91_spi0_hw_init(unsigned long cs_mask)
{
at91_set_A_periph(AT91_PIN_PA0, 0); /* SPI0_MISO */
diff --git a/cpu/arm926ejs/davinci/Makefile b/cpu/arm926ejs/davinci/Makefile
index e45ad25..7501a85 100644
--- a/cpu/arm926ejs/davinci/Makefile
+++ b/cpu/arm926ejs/davinci/Makefile
@@ -29,6 +29,7 @@ LIB = $(obj)lib$(SOC).a
COBJS-y += cpu.o timer.o psc.o
COBJS-$(CONFIG_SOC_DM355) += dm355.o
+COBJS-$(CONFIG_SOC_DM365) += dm365.o
COBJS-$(CONFIG_SOC_DM644X) += dm644x.o
COBJS-$(CONFIG_DRIVER_TI_EMAC) += lxt972.o dp83848.o
diff --git a/cpu/arm926ejs/davinci/dm365.c b/cpu/arm926ejs/davinci/dm365.c
new file mode 100644
index 0000000..56c1bc0
--- /dev/null
+++ b/cpu/arm926ejs/davinci/dm365.c
@@ -0,0 +1,35 @@
+/*
+ * SoC-specific code for tms320dm365 and similar chips
+ *
+ * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <common.h>
+#include <asm/arch/hardware.h>
+
+void davinci_enable_uart0(void)
+{
+ lpsc_on(DAVINCI_LPSC_UART0);
+}
+
+#ifdef CONFIG_DRIVER_DAVINCI_I2C
+void davinci_enable_i2c(void)
+{
+ lpsc_on(DAVINCI_LPSC_I2C);
+}
+#endif
diff --git a/cpu/arm926ejs/kirkwood/cpu.c b/cpu/arm926ejs/kirkwood/cpu.c
index 795a739..bab5faf 100644
--- a/cpu/arm926ejs/kirkwood/cpu.c
+++ b/cpu/arm926ejs/kirkwood/cpu.c
@@ -195,6 +195,78 @@ int kw_config_mpp(u32 mpp0_7, u32 mpp8_15, u32 mpp16_23, u32 mpp24_31,
return 0;
}
+/*
+ * SYSRSTn Duration Counter Support
+ *
+ * Kirkwood SoC implements a hardware-based SYSRSTn duration counter.
+ * When SYSRSTn is asserted low, a SYSRSTn duration counter is running.
+ * The SYSRSTn duration counter is useful for implementing a manufacturer
+ * or factory reset. Upon a long reset assertion that is greater than a
+ * pre-configured environment variable value for sysrstdelay,
+ * The counter value is stored in the SYSRSTn Length Counter Register
+ * The counter is based on the 25-MHz reference clock (40ns)
+ * It is a 29-bit counter, yielding a maximum counting duration of
+ * 2^29/25 MHz (21.4 seconds). When the counter reach its maximum value,
+ * it remains at this value until counter reset is triggered by setting
+ * bit 31 of KW_REG_SYSRST_CNT
+ */
+static void kw_sysrst_action(void)
+{
+ int ret;
+ char *s = getenv("sysrstcmd");
+
+ if (!s) {
+ debug("Error.. %s failed, check sysrstcmd\n",
+ __FUNCTION__);
+ return;
+ }
+
+ debug("Starting %s process...\n", __FUNCTION__);
+#if !defined(CONFIG_SYS_HUSH_PARSER)
+ ret = run_command (s, 0);
+#else
+ ret = parse_string_outer(s, FLAG_PARSE_SEMICOLON
+ | FLAG_EXIT_FROM_LOOP);
+#endif
+ if (ret < 0)
+ debug("Error.. %s failed\n", __FUNCTION__);
+ else
+ debug("%s process finished\n", __FUNCTION__);
+}
+
+static void kw_sysrst_check(void)
+{
+ u32 sysrst_cnt, sysrst_dly;
+ char *s;
+
+ /*
+ * no action if sysrstdelay environment variable is not defined
+ */
+ s = getenv("sysrstdelay");
+ if (s == NULL)
+ return;
+
+ /* read sysrstdelay value */
+ sysrst_dly = (u32) simple_strtoul(s, NULL, 10);
+
+ /* read SysRst Length counter register (bits 28:0) */
+ sysrst_cnt = (0x1fffffff & readl(KW_REG_SYSRST_CNT));
+ debug("H/w Rst hold time: %d.%d secs\n",
+ sysrst_cnt / SYSRST_CNT_1SEC_VAL,
+ sysrst_cnt % SYSRST_CNT_1SEC_VAL);
+
+ /* clear the counter for next valid read*/
+ writel(1 << 31, KW_REG_SYSRST_CNT);
+
+ /*
+ * sysrst_action:
+ * if H/w Reset key is pressed and hold for time
+ * more than sysrst_dly in seconds
+ */
+ if (sysrst_cnt >= SYSRST_CNT_1SEC_VAL * sysrst_dly)
+ kw_sysrst_action();
+}
+
#if defined(CONFIG_DISPLAY_CPUINFO)
int print_cpuinfo(void)
{
@@ -298,6 +370,9 @@ int arch_misc_init(void)
temp = get_cr();
set_cr(temp & ~CR_V);
+ /* checks and execute resset to factory event */
+ kw_sysrst_check();
+
return 0;
}
#endif /* CONFIG_ARCH_MISC_INIT */
diff --git a/cpu/arm926ejs/mx27/generic.c b/cpu/arm926ejs/mx27/generic.c
index 9b4ff02..808371f 100644
--- a/cpu/arm926ejs/mx27/generic.c
+++ b/cpu/arm926ejs/mx27/generic.c
@@ -264,3 +264,68 @@ void imx_gpio_mode(int gpio_mode)
&regs->port[port].iconfb2);
}
}
+
+#ifdef CONFIG_MXC_UART
+void mx27_uart_init_pins(void)
+{
+ int i;
+ unsigned int mode[] = {
+ PE12_PF_UART1_TXD,
+ PE13_PF_UART1_RXD,
+ };
+
+ for (i = 0; i < ARRAY_SIZE(mode); i++)
+ imx_gpio_mode(mode[i]);
+
+}
+#endif /* CONFIG_MXC_UART */
+
+#ifdef CONFIG_FEC_MXC
+void mx27_fec_init_pins(void)
+{
+ int i;
+ unsigned int mode[] = {
+ PD0_AIN_FEC_TXD0,
+ PD1_AIN_FEC_TXD1,
+ PD2_AIN_FEC_TXD2,
+ PD3_AIN_FEC_TXD3,
+ PD4_AOUT_FEC_RX_ER,
+ PD5_AOUT_FEC_RXD1,
+ PD6_AOUT_FEC_RXD2,
+ PD7_AOUT_FEC_RXD3,
+ PD8_AF_FEC_MDIO,
+ PD9_AIN_FEC_MDC | GPIO_PUEN,
+ PD10_AOUT_FEC_CRS,
+ PD11_AOUT_FEC_TX_CLK,
+ PD12_AOUT_FEC_RXD0,
+ PD13_AOUT_FEC_RX_DV,
+ PD14_AOUT_FEC_CLR,
+ PD15_AOUT_FEC_COL,
+ PD16_AIN_FEC_TX_ER,
+ PF23_AIN_FEC_TX_EN,
+ };
+
+ for (i = 0; i < ARRAY_SIZE(mode); i++)
+ imx_gpio_mode(mode[i]);
+}
+#endif /* CONFIG_FEC_MXC */
+
+#ifdef CONFIG_MXC_MMC
+void mx27_sd2_init_pins(void)
+{
+ int i;
+ unsigned int mode[] = {
+ PB4_PF_SD2_D0,
+ PB5_PF_SD2_D1,
+ PB6_PF_SD2_D2,
+ PB7_PF_SD2_D3,
+ PB8_PF_SD2_CMD,
+ PB9_PF_SD2_CLK,
+ };
+
+ for (i = 0; i < ARRAY_SIZE(mode); i++)
+ imx_gpio_mode(mode[i]);
+
+}
+#endif /* CONFIG_MXC_MMC */
+