--- /dev/null
+/*
+ * TI DaVinci DM646X EVM board
+ *
+ * Derived from: arch/arm/mach-davinci/board-evm.c
+ * Copyright (C) 2006 Texas Instruments.
+ *
+ * (C) 2007-2008, MontaVista Software, Inc.
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ *
+ */
+
+/**************************************************************************
+ * Included Files
+ **************************************************************************/
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/fs.h>
+#include <linux/major.h>
+#include <linux/root_dev.h>
+#include <linux/dma-mapping.h>
+#include <linux/serial.h>
+#include <linux/serial_8250.h>
+#include <linux/leds.h>
+#include <linux/gpio.h>
+#include <linux/io.h>
+#include <linux/platform_device.h>
+#include <linux/i2c.h>
+#include <linux/i2c/at24.h>
+#include <linux/i2c/pcf857x.h>
+#include <linux/etherdevice.h>
+
+#include <asm/setup.h>
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/mach/flash.h>
+
+#include <mach/dm646x.h>
+#include <mach/common.h>
+#include <mach/psc.h>
+#include <mach/serial.h>
+#include <mach/i2c.h>
+
+static struct davinci_uart_config uart_config __initdata = {
+ .enabled_uarts = (1 << 0),
+};
+
+/* LEDS */
+
+static struct gpio_led evm_leds[] = {
+ { .name = "DS1", .active_low = 1, },
+ { .name = "DS2", .active_low = 1, },
+ { .name = "DS3", .active_low = 1, },
+ { .name = "DS4", .active_low = 1, },
+};
+
+static __initconst struct gpio_led_platform_data evm_led_data = {
+ .num_leds = ARRAY_SIZE(evm_leds),
+ .leds = evm_leds,
+};
+
+static struct platform_device *evm_led_dev;
+
+static int evm_led_setup(struct i2c_client *client, int gpio,
+ unsigned int ngpio, void *c)
+{
+ struct gpio_led *leds = evm_leds;
+ int status;
+
+ while (ngpio--) {
+ leds->gpio = gpio++;
+ leds++;
+ };
+
+ evm_led_dev = platform_device_alloc("leds-gpio", 0);
+ platform_device_add_data(evm_led_dev, &evm_led_data,
+ sizeof(evm_led_data));
+
+ evm_led_dev->dev.parent = &client->dev;
+ status = platform_device_add(evm_led_dev);
+ if (status < 0) {
+ platform_device_put(evm_led_dev);
+ evm_led_dev = NULL;
+ }
+ return status;
+}
+
+static int evm_led_teardown(struct i2c_client *client, int gpio,
+ unsigned ngpio, void *c)
+{
+ if (evm_led_dev) {
+ platform_device_unregister(evm_led_dev);
+ evm_led_dev = NULL;
+ }
+ return 0;
+}
+
+static int evm_sw_gpio[4] = { -EINVAL, -EINVAL, -EINVAL, -EINVAL };
+
+static int evm_sw_setup(struct i2c_client *client, int gpio,
+ unsigned ngpio, void *c)
+{
+ int status;
+ int i;
+ char label[10];
+
+ for (i = 0; i < 4; ++i) {
+ snprintf(label, 10, "user_sw%d", i);
+ status = gpio_request(gpio, label);
+ if (status)
+ goto out_free;
+ evm_sw_gpio[i] = gpio++;
+
+ status = gpio_direction_input(evm_sw_gpio[i]);
+ if (status) {
+ gpio_free(evm_sw_gpio[i]);
+ evm_sw_gpio[i] = -EINVAL;
+ goto out_free;
+ }
+
+ status = gpio_export(evm_sw_gpio[i], 0);
+ if (status) {
+ gpio_free(evm_sw_gpio[i]);
+ evm_sw_gpio[i] = -EINVAL;
+ goto out_free;
+ }
+ }
+ return status;
+out_free:
+ for (i = 0; i < 4; ++i) {
+ if (evm_sw_gpio[i] != -EINVAL) {
+ gpio_free(evm_sw_gpio[i]);
+ evm_sw_gpio[i] = -EINVAL;
+ }
+ }
+ return status;
+}
+
+static int evm_sw_teardown(struct i2c_client *client, int gpio,
+ unsigned ngpio, void *c)
+{
+ int i;
+
+ for (i = 0; i < 4; ++i) {
+ if (evm_sw_gpio[i] != -EINVAL) {
+ gpio_unexport(evm_sw_gpio[i]);
+ gpio_free(evm_sw_gpio[i]);
+ evm_sw_gpio[i] = -EINVAL;
+ }
+ }
+ return 0;
+}
+
+static int evm_pcf_setup(struct i2c_client *client, int gpio,
+ unsigned int ngpio, void *c)
+{
+ int status;
+
+ if (ngpio < 8)
+ return -EINVAL;
+
+ status = evm_sw_setup(client, gpio, 4, c);
+ if (status)
+ return status;
+
+ return evm_led_setup(client, gpio+4, 4, c);
+}
+
+static int evm_pcf_teardown(struct i2c_client *client, int gpio,
+ unsigned int ngpio, void *c)
+{
+ BUG_ON(ngpio < 8);
+
+ evm_sw_teardown(client, gpio, 4, c);
+ evm_led_teardown(client, gpio+4, 4, c);
+
+ return 0;
+}
+
+static struct pcf857x_platform_data pcf_data = {
+ .gpio_base = DAVINCI_N_GPIO+1,
+ .setup = evm_pcf_setup,
+ .teardown = evm_pcf_teardown,
+};
+
+/* Most of this EEPROM is unused, but U-Boot uses some data:
+ * - 0x7f00, 6 bytes Ethernet Address
+ * - ... newer boards may have more
+ */
+static struct memory_accessor *at24_mem_acc;
+
+static void at24_setup(struct memory_accessor *mem_acc, void *context)
+{
+ char mac_addr[6];
+
+ at24_mem_acc = mem_acc;
+
+ /* Read MAC addr from EEPROM */
+ if (at24_mem_acc->read(at24_mem_acc, mac_addr, 0x7f00, ETH_ALEN) ==
+ ETH_ALEN)
+ pr_info("Read MAC addr from EEPROM: %pM\n", mac_addr);
+}
+
+static struct at24_platform_data eeprom_info = {
+ .byte_len = (256*1024) / 8,
+ .page_size = 64,
+ .flags = AT24_FLAG_ADDR16,
+ .setup = at24_setup,
+};
+
+int dm646xevm_eeprom_read(void *buf, off_t off, size_t count)
+{
+ if (at24_mem_acc)
+ return at24_mem_acc->read(at24_mem_acc, buf, off, count);
+ return -ENODEV;
+}
+EXPORT_SYMBOL(dm646xevm_eeprom_read);
+
+int dm646xevm_eeprom_write(void *buf, off_t off, size_t count)
+{
+ if (at24_mem_acc)
+ return at24_mem_acc->write(at24_mem_acc, buf, off, count);
+ return -ENODEV;
+}
+EXPORT_SYMBOL(dm646xevm_eeprom_write);
+
+static struct i2c_board_info __initdata i2c_info[] = {
+ {
+ I2C_BOARD_INFO("24c256", 0x50),
+ .platform_data = &eeprom_info,
+ },
+ {
+ I2C_BOARD_INFO("pcf8574a", 0x38),
+ .platform_data = &pcf_data,
+ },
+};
+
+static struct davinci_i2c_platform_data i2c_pdata = {
+ .bus_freq = 100 /* kHz */,
+ .bus_delay = 0 /* usec */,
+};
+
+static void __init evm_init_i2c(void)
+{
+ davinci_init_i2c(&i2c_pdata);
+ i2c_register_board_info(1, i2c_info, ARRAY_SIZE(i2c_info));
+}
+
+static void __init davinci_map_io(void)
+{
+ davinci_map_common_io();
+ dm646x_init();
+}
+
+static __init void evm_init(void)
+{
+ evm_init_i2c();
+ davinci_serial_init(&uart_config);
+}
+
+static __init void davinci_dm646x_evm_irq_init(void)
+{
+ davinci_irq_init();
+}
+
+MACHINE_START(DAVINCI_DM6467_EVM, "DaVinci DM646x EVM")
+ .phys_io = IO_PHYS,
+ .io_pg_offst = (__IO_ADDRESS(IO_PHYS) >> 18) & 0xfffc,
+ .boot_params = (0x80000100),
+ .map_io = davinci_map_io,
+ .init_irq = davinci_dm646x_evm_irq_init,
+ .timer = &davinci_timer,
+ .init_machine = evm_init,
+MACHINE_END
+
--- /dev/null
+/*
+ * TI DaVinci DM644x chip specific setup
+ *
+ * Author: Kevin Hilman, Deep Root Systems, LLC
+ *
+ * 2007 (c) Deep Root Systems, LLC. This file is licensed under
+ * the terms of the GNU General Public License version 2. This program
+ * is licensed "as is" without any warranty of any kind, whether express
+ * or implied.
+ */
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/clk.h>
+#include <linux/platform_device.h>
+
+#include <mach/dm646x.h>
+#include <mach/clock.h>
+#include <mach/cputype.h>
+#include <mach/edma.h>
+#include <mach/irqs.h>
+#include <mach/psc.h>
+#include <mach/mux.h>
+
+#include "clock.h"
+#include "mux.h"
+
+/*
+ * Device specific clocks
+ */
+#define DM646X_REF_FREQ 27000000
+#define DM646X_AUX_FREQ 24000000
+
+static struct pll_data pll1_data = {
+ .num = 1,
+ .phys_base = DAVINCI_PLL1_BASE,
+};
+
+static struct pll_data pll2_data = {
+ .num = 2,
+ .phys_base = DAVINCI_PLL2_BASE,
+};
+
+static struct clk ref_clk = {
+ .name = "ref_clk",
+ .rate = DM646X_REF_FREQ,
+};
+
+static struct clk aux_clkin = {
+ .name = "aux_clkin",
+ .rate = DM646X_AUX_FREQ,
+};
+
+static struct clk pll1_clk = {
+ .name = "pll1",
+ .parent = &ref_clk,
+ .pll_data = &pll1_data,
+ .flags = CLK_PLL,
+};
+
+static struct clk pll1_sysclk1 = {
+ .name = "pll1_sysclk1",
+ .parent = &pll1_clk,
+ .flags = CLK_PLL,
+ .div_reg = PLLDIV1,
+};
+
+static struct clk pll1_sysclk2 = {
+ .name = "pll1_sysclk2",
+ .parent = &pll1_clk,
+ .flags = CLK_PLL,
+ .div_reg = PLLDIV2,
+};
+
+static struct clk pll1_sysclk3 = {
+ .name = "pll1_sysclk3",
+ .parent = &pll1_clk,
+ .flags = CLK_PLL,
+ .div_reg = PLLDIV3,
+};
+
+static struct clk pll1_sysclk4 = {
+ .name = "pll1_sysclk4",
+ .parent = &pll1_clk,
+ .flags = CLK_PLL,
+ .div_reg = PLLDIV4,
+};
+
+static struct clk pll1_sysclk5 = {
+ .name = "pll1_sysclk5",
+ .parent = &pll1_clk,
+ .flags = CLK_PLL,
+ .div_reg = PLLDIV5,
+};
+
+static struct clk pll1_sysclk6 = {
+ .name = "pll1_sysclk6",
+ .parent = &pll1_clk,
+ .flags = CLK_PLL,
+ .div_reg = PLLDIV6,
+};
+
+static struct clk pll1_sysclk8 = {
+ .name = "pll1_sysclk8",
+ .parent = &pll1_clk,
+ .flags = CLK_PLL,
+ .div_reg = PLLDIV8,
+};
+
+static struct clk pll1_sysclk9 = {
+ .name = "pll1_sysclk9",
+ .parent = &pll1_clk,
+ .flags = CLK_PLL,
+ .div_reg = PLLDIV9,
+};
+
+static struct clk pll1_sysclkbp = {
+ .name = "pll1_sysclkbp",
+ .parent = &pll1_clk,
+ .flags = CLK_PLL | PRE_PLL,
+ .div_reg = BPDIV,
+};
+
+static struct clk pll1_aux_clk = {
+ .name = "pll1_aux_clk",
+ .parent = &pll1_clk,
+ .flags = CLK_PLL | PRE_PLL,
+};
+
+static struct clk pll2_clk = {
+ .name = "pll2_clk",
+ .parent = &ref_clk,
+ .pll_data = &pll2_data,
+ .flags = CLK_PLL,
+};
+
+static struct clk pll2_sysclk1 = {
+ .name = "pll2_sysclk1",
+ .parent = &pll2_clk,
+ .flags = CLK_PLL,
+ .div_reg = PLLDIV1,
+};
+
+static struct clk dsp_clk = {
+ .name = "dsp",
+ .parent = &pll1_sysclk1,
+ .lpsc = DM646X_LPSC_C64X_CPU,
+ .flags = PSC_DSP,
+ .usecount = 1, /* REVISIT how to disable? */
+};
+
+static struct clk arm_clk = {
+ .name = "arm",
+ .parent = &pll1_sysclk2,
+ .lpsc = DM646X_LPSC_ARM,
+ .flags = ALWAYS_ENABLED,
+};
+
+static struct clk uart0_clk = {
+ .name = "uart0",
+ .parent = &aux_clkin,
+ .lpsc = DM646X_LPSC_UART0,
+};
+
+static struct clk uart1_clk = {
+ .name = "uart1",
+ .parent = &aux_clkin,
+ .lpsc = DM646X_LPSC_UART1,
+};
+
+static struct clk uart2_clk = {
+ .name = "uart2",
+ .parent = &aux_clkin,
+ .lpsc = DM646X_LPSC_UART2,
+};
+
+static struct clk i2c_clk = {
+ .name = "I2CCLK",
+ .parent = &pll1_sysclk3,
+ .lpsc = DM646X_LPSC_I2C,
+};
+
+static struct clk gpio_clk = {
+ .name = "gpio",
+ .parent = &pll1_sysclk3,
+ .lpsc = DM646X_LPSC_GPIO,
+};
+
+static struct clk aemif_clk = {
+ .name = "aemif",
+ .parent = &pll1_sysclk3,
+ .lpsc = DM646X_LPSC_AEMIF,
+ .flags = ALWAYS_ENABLED,
+};
+
+static struct clk emac_clk = {
+ .name = "emac",
+ .parent = &pll1_sysclk3,
+ .lpsc = DM646X_LPSC_EMAC,
+};
+
+static struct clk pwm0_clk = {
+ .name = "pwm0",
+ .parent = &pll1_sysclk3,
+ .lpsc = DM646X_LPSC_PWM0,
+ .usecount = 1, /* REVIST: disabling hangs system */
+};
+
+static struct clk pwm1_clk = {
+ .name = "pwm1",
+ .parent = &pll1_sysclk3,
+ .lpsc = DM646X_LPSC_PWM1,
+ .usecount = 1, /* REVIST: disabling hangs system */
+};
+
+static struct clk timer0_clk = {
+ .name = "timer0",
+ .parent = &pll1_sysclk3,
+ .lpsc = DM646X_LPSC_TIMER0,
+};
+
+static struct clk timer1_clk = {
+ .name = "timer1",
+ .parent = &pll1_sysclk3,
+ .lpsc = DM646X_LPSC_TIMER1,
+};
+
+static struct clk timer2_clk = {
+ .name = "timer2",
+ .parent = &pll1_sysclk3,
+ .flags = ALWAYS_ENABLED, /* no LPSC, always enabled; c.f. spruep9a */
+};
+
+static struct clk vpif0_clk = {
+ .name = "vpif0",
+ .parent = &ref_clk,
+ .lpsc = DM646X_LPSC_VPSSMSTR,
+ .flags = ALWAYS_ENABLED,
+};
+
+static struct clk vpif1_clk = {
+ .name = "vpif1",
+ .parent = &ref_clk,
+ .lpsc = DM646X_LPSC_VPSSSLV,
+ .flags = ALWAYS_ENABLED,
+};
+
+struct davinci_clk dm646x_clks[] = {
+ CLK(NULL, "ref", &ref_clk),
+ CLK(NULL, "aux", &aux_clkin),
+ CLK(NULL, "pll1", &pll1_clk),
+ CLK(NULL, "pll1_sysclk", &pll1_sysclk1),
+ CLK(NULL, "pll1_sysclk", &pll1_sysclk2),
+ CLK(NULL, "pll1_sysclk", &pll1_sysclk3),
+ CLK(NULL, "pll1_sysclk", &pll1_sysclk4),
+ CLK(NULL, "pll1_sysclk", &pll1_sysclk5),
+ CLK(NULL, "pll1_sysclk", &pll1_sysclk6),
+ CLK(NULL, "pll1_sysclk", &pll1_sysclk8),
+ CLK(NULL, "pll1_sysclk", &pll1_sysclk9),
+ CLK(NULL, "pll1_sysclk", &pll1_sysclkbp),
+ CLK(NULL, "pll1_aux", &pll1_aux_clk),
+ CLK(NULL, "pll2", &pll2_clk),
+ CLK(NULL, "pll2_sysclk1", &pll2_sysclk1),
+ CLK(NULL, "dsp", &dsp_clk),
+ CLK(NULL, "arm", &arm_clk),
+ CLK(NULL, "uart0", &uart0_clk),
+ CLK(NULL, "uart1", &uart1_clk),
+ CLK(NULL, "uart2", &uart2_clk),
+ CLK("i2c_davinci.1", NULL, &i2c_clk),
+ CLK(NULL, "gpio", &gpio_clk),
+ CLK(NULL, "aemif", &aemif_clk),
+ CLK("davinci_emac.1", NULL, &emac_clk),
+ CLK(NULL, "pwm0", &pwm0_clk),
+ CLK(NULL, "pwm1", &pwm1_clk),
+ CLK(NULL, "timer0", &timer0_clk),
+ CLK(NULL, "timer1", &timer1_clk),
+ CLK("watchdog", NULL, &timer2_clk),
+ CLK(NULL, "vpif0", &vpif0_clk),
+ CLK(NULL, "vpif1", &vpif1_clk),
+ CLK(NULL, NULL, NULL),
+};
+
+/*
+ * Device specific mux setup
+ *
+ * soc description mux mode mode mux dbg
+ * reg offset mask mode
+ */
+static const struct mux_config dm646x_pins[] = {
+MUX_CFG(DM646X, ATAEN, 0, 0, 1, 1, true)
+
+MUX_CFG(DM646X, AUDCK1, 0, 29, 1, 0, false)
+
+MUX_CFG(DM646X, AUDCK0, 0, 28, 1, 0, false)
+
+MUX_CFG(DM646X, CRGMUX, 0, 24, 7, 5, true)
+
+MUX_CFG(DM646X, STSOMUX_DISABLE, 0, 22, 3, 0, true)
+
+MUX_CFG(DM646X, STSIMUX_DISABLE, 0, 20, 3, 0, true)
+
+MUX_CFG(DM646X, PTSOMUX_DISABLE, 0, 18, 3, 0, true)
+
+MUX_CFG(DM646X, PTSIMUX_DISABLE, 0, 16, 3, 0, true)
+
+MUX_CFG(DM646X, STSOMUX, 0, 22, 3, 2, true)
+
+MUX_CFG(DM646X, STSIMUX, 0, 20, 3, 2, true)
+
+MUX_CFG(DM646X, PTSOMUX_PARALLEL, 0, 18, 3, 2, true)
+
+MUX_CFG(DM646X, PTSIMUX_PARALLEL, 0, 16, 3, 2, true)
+
+MUX_CFG(DM646X, PTSOMUX_SERIAL, 0, 18, 3, 3, true)
+
+MUX_CFG(DM646X, PTSIMUX_SERIAL, 0, 16, 3, 3, true)
+};
+
+/*----------------------------------------------------------------------*/
+
+static const s8 dma_chan_dm646x_no_event[] = {
+ 0, 1, 2, 3, 13,
+ 14, 15, 24, 25, 26,
+ 27, 30, 31, 54, 55,
+ 56,
+ -1
+};
+
+static struct edma_soc_info dm646x_edma_info = {
+ .n_channel = 64,
+ .n_region = 6, /* 0-1, 4-7 */
+ .n_slot = 512,
+ .n_tc = 4,
+ .noevent = dma_chan_dm646x_no_event,
+};
+
+static struct resource edma_resources[] = {
+ {
+ .name = "edma_cc",
+ .start = 0x01c00000,
+ .end = 0x01c00000 + SZ_64K - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ .name = "edma_tc0",
+ .start = 0x01c10000,
+ .end = 0x01c10000 + SZ_1K - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ .name = "edma_tc1",
+ .start = 0x01c10400,
+ .end = 0x01c10400 + SZ_1K - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ .name = "edma_tc2",
+ .start = 0x01c10800,
+ .end = 0x01c10800 + SZ_1K - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ .name = "edma_tc3",
+ .start = 0x01c10c00,
+ .end = 0x01c10c00 + SZ_1K - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ .start = IRQ_CCINT0,
+ .flags = IORESOURCE_IRQ,
+ },
+ {
+ .start = IRQ_CCERRINT,
+ .flags = IORESOURCE_IRQ,
+ },
+ /* not using TC*_ERR */
+};
+
+static struct platform_device dm646x_edma_device = {
+ .name = "edma",
+ .id = -1,
+ .dev.platform_data = &dm646x_edma_info,
+ .num_resources = ARRAY_SIZE(edma_resources),
+ .resource = edma_resources,
+};
+
+/*----------------------------------------------------------------------*/
+
+void __init dm646x_init(void)
+{
+ davinci_clk_init(dm646x_clks);
+ davinci_mux_register(dm646x_pins, ARRAY_SIZE(dm646x_pins));
+}
+
+static int __init dm646x_init_devices(void)
+{
+ if (!cpu_is_davinci_dm646x())
+ return 0;
+
+ platform_device_register(&dm646x_edma_device);
+ return 0;
+}
+postcore_initcall(dm646x_init_devices);
git://ftp.safe.ca / safe / jmp / linux-2.6 / commitdiff