[ARM] 5539/1: Freescale STMP: onboard devices declaration
Define onboard devices for Freescale STMP3xxx boards
Signed-off-by: dmitry pervushin <dpervushin@embeddedalley.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/mach-stmp378x/stmp378x_devb.c b/arch/arm/mach-stmp378x/stmp378x_devb.c
index bc643f6..90d8fe6 100644
--- a/arch/arm/mach-stmp378x/stmp378x_devb.c
+++ b/arch/arm/mach-stmp378x/stmp378x_devb.c
@@ -17,7 +17,12 @@
*/
#include <linux/kernel.h>
#include <linux/init.h>
+#include <linux/io.h>
#include <linux/platform_device.h>
+#include <linux/delay.h>
+#include <linux/clk.h>
+#include <linux/err.h>
+#include <linux/spi/spi.h>
#include <asm/setup.h>
#include <asm/mach-types.h>
@@ -25,12 +30,39 @@
#include <mach/pins.h>
#include <mach/pinmux.h>
+#include <mach/platform.h>
#include <mach/stmp3xxx.h>
+#include <mach/mmc.h>
+#include <mach/gpmi.h>
#include "stmp378x.h"
static struct platform_device *devices[] = {
&stmp3xxx_dbguart,
+ &stmp3xxx_appuart,
+ &stmp3xxx_watchdog,
+ &stmp3xxx_touchscreen,
+ &stmp3xxx_rtc,
+ &stmp3xxx_keyboard,
+ &stmp3xxx_framebuffer,
+ &stmp3xxx_backlight,
+ &stmp3xxx_rotdec,
+ &stmp3xxx_persistent,
+ &stmp3xxx_dcp_bootstream,
+ &stmp3xxx_dcp,
+ &stmp3xxx_battery,
+ &stmp378x_pxp,
+ &stmp378x_i2c,
+};
+
+static struct pin_desc i2c_pins_desc[] = {
+ { PINID_I2C_SCL, PIN_FUN1, PIN_4MA, PIN_3_3V, 0 },
+ { PINID_I2C_SDA, PIN_FUN1, PIN_4MA, PIN_3_3V, 0 },
+};
+
+static struct pin_group i2c_pins = {
+ .pins = i2c_pins_desc,
+ .nr_pins = ARRAY_SIZE(i2c_pins_desc),
};
static struct pin_desc dbguart_pins_0[] = {
@@ -56,6 +88,215 @@
return r;
}
+static struct pin_desc appuart_pins_0[] = {
+ { PINID_AUART1_CTS, PIN_FUN1, PIN_4MA, PIN_1_8V, 0, },
+ { PINID_AUART1_RTS, PIN_FUN1, PIN_4MA, PIN_1_8V, 0, },
+ { PINID_AUART1_RX, PIN_FUN1, PIN_4MA, PIN_1_8V, 0, },
+ { PINID_AUART1_TX, PIN_FUN1, PIN_4MA, PIN_1_8V, 0, },
+};
+
+static struct pin_desc appuart_pins_1[] = {
+#if 0 /* enable these when second appuart will be connected */
+ { PINID_AUART2_CTS, PIN_FUN1, PIN_4MA, PIN_1_8V, 0, },
+ { PINID_AUART2_RTS, PIN_FUN1, PIN_4MA, PIN_1_8V, 0, },
+ { PINID_AUART2_RX, PIN_FUN1, PIN_4MA, PIN_1_8V, 0, },
+ { PINID_AUART2_TX, PIN_FUN1, PIN_4MA, PIN_1_8V, 0, },
+#endif
+};
+
+static struct pin_desc mmc_pins_desc[] = {
+ { PINID_SSP1_DATA0, PIN_FUN1, PIN_8MA, PIN_3_3V, 1 },
+ { PINID_SSP1_DATA1, PIN_FUN1, PIN_8MA, PIN_3_3V, 1 },
+ { PINID_SSP1_DATA2, PIN_FUN1, PIN_8MA, PIN_3_3V, 1 },
+ { PINID_SSP1_DATA3, PIN_FUN1, PIN_8MA, PIN_3_3V, 1 },
+ { PINID_SSP1_CMD, PIN_FUN1, PIN_8MA, PIN_3_3V, 1 },
+ { PINID_SSP1_SCK, PIN_FUN1, PIN_8MA, PIN_3_3V, 0 },
+ { PINID_SSP1_DETECT, PIN_FUN1, PIN_8MA, PIN_3_3V, 0 },
+};
+
+static struct pin_group mmc_pins = {
+ .pins = mmc_pins_desc,
+ .nr_pins = ARRAY_SIZE(mmc_pins_desc),
+};
+
+static int stmp3xxxmmc_get_wp(void)
+{
+ return gpio_get_value(PINID_PWM4);
+}
+
+static int stmp3xxxmmc_hw_init_ssp1(void)
+{
+ int ret;
+
+ ret = stmp3xxx_request_pin_group(&mmc_pins, "mmc");
+ if (ret)
+ goto out;
+
+ /* Configure write protect GPIO pin */
+ ret = gpio_request(PINID_PWM4, "mmc wp");
+ if (ret)
+ goto out_wp;
+
+ gpio_direction_input(PINID_PWM4);
+
+ /* Configure POWER pin as gpio to drive power to MMC slot */
+ ret = gpio_request(PINID_PWM3, "mmc power");
+ if (ret)
+ goto out_power;
+
+ gpio_direction_output(PINID_PWM3, 0);
+ mdelay(100);
+
+ return 0;
+
+out_power:
+ gpio_free(PINID_PWM4);
+out_wp:
+ stmp3xxx_release_pin_group(&mmc_pins, "mmc");
+out:
+ return ret;
+}
+
+static void stmp3xxxmmc_hw_release_ssp1(void)
+{
+ gpio_free(PINID_PWM3);
+ gpio_free(PINID_PWM4);
+ stmp3xxx_release_pin_group(&mmc_pins, "mmc");
+}
+
+static void stmp3xxxmmc_cmd_pullup_ssp1(int enable)
+{
+ stmp3xxx_pin_pullup(PINID_SSP1_CMD, enable, "mmc");
+}
+
+static unsigned long
+stmp3xxxmmc_setclock_ssp1(void __iomem *base, unsigned long hz)
+{
+ struct clk *ssp, *parent;
+ char *p;
+ long r;
+
+ ssp = clk_get(NULL, "ssp");
+
+ /* using SSP1, no timeout, clock rate 1 */
+ writel(BF(2, SSP_TIMING_CLOCK_DIVIDE) |
+ BF(0xFFFF, SSP_TIMING_TIMEOUT),
+ base + HW_SSP_TIMING);
+
+ p = (hz > 1000000) ? "io" : "osc_24M";
+ parent = clk_get(NULL, p);
+ clk_set_parent(ssp, parent);
+ r = clk_set_rate(ssp, 2 * hz / 1000);
+ clk_put(parent);
+ clk_put(ssp);
+
+ return hz;
+}
+
+static struct stmp3xxxmmc_platform_data mmc_data = {
+ .hw_init = stmp3xxxmmc_hw_init_ssp1,
+ .hw_release = stmp3xxxmmc_hw_release_ssp1,
+ .get_wp = stmp3xxxmmc_get_wp,
+ .cmd_pullup = stmp3xxxmmc_cmd_pullup_ssp1,
+ .setclock = stmp3xxxmmc_setclock_ssp1,
+};
+
+
+static struct pin_group appuart_pins[] = {
+ [0] = {
+ .pins = appuart_pins_0,
+ .nr_pins = ARRAY_SIZE(appuart_pins_0),
+ },
+ [1] = {
+ .pins = appuart_pins_1,
+ .nr_pins = ARRAY_SIZE(appuart_pins_1),
+ },
+};
+
+static struct pin_desc ssp1_pins_desc[] = {
+ { PINID_SSP1_SCK, PIN_FUN1, PIN_8MA, PIN_3_3V, 0, },
+ { PINID_SSP1_CMD, PIN_FUN1, PIN_4MA, PIN_3_3V, 0, },
+ { PINID_SSP1_DATA0, PIN_FUN1, PIN_4MA, PIN_3_3V, 0, },
+ { PINID_SSP1_DATA3, PIN_FUN1, PIN_4MA, PIN_3_3V, 0, },
+};
+
+static struct pin_desc ssp2_pins_desc[] = {
+ { PINID_GPMI_WRN, PIN_FUN3, PIN_8MA, PIN_3_3V, 0, },
+ { PINID_GPMI_RDY1, PIN_FUN3, PIN_4MA, PIN_3_3V, 0, },
+ { PINID_GPMI_D00, PIN_FUN3, PIN_4MA, PIN_3_3V, 0, },
+ { PINID_GPMI_D03, PIN_FUN3, PIN_4MA, PIN_3_3V, 0, },
+};
+
+static struct pin_group ssp1_pins = {
+ .pins = ssp1_pins_desc,
+ .nr_pins = ARRAY_SIZE(ssp1_pins_desc),
+};
+
+static struct pin_group ssp2_pins = {
+ .pins = ssp1_pins_desc,
+ .nr_pins = ARRAY_SIZE(ssp2_pins_desc),
+};
+
+static struct pin_desc gpmi_pins_desc[] = {
+ { PINID_GPMI_CE0N, PIN_FUN1, PIN_4MA, PIN_3_3V, 0 },
+ { PINID_GPMI_CE1N, PIN_FUN1, PIN_4MA, PIN_3_3V, 0 },
+ { PINID_GMPI_CE2N, PIN_FUN1, PIN_4MA, PIN_3_3V, 0 },
+ { PINID_GPMI_CLE, PIN_FUN1, PIN_4MA, PIN_3_3V, 0 },
+ { PINID_GPMI_ALE, PIN_FUN1, PIN_4MA, PIN_3_3V, 0 },
+ { PINID_GPMI_WPN, PIN_FUN1, PIN_12MA, PIN_3_3V, 0 },
+ { PINID_GPMI_RDY1, PIN_FUN1, PIN_4MA, PIN_3_3V, 0 },
+ { PINID_GPMI_D00, PIN_FUN1, PIN_4MA, PIN_3_3V, 0 },
+ { PINID_GPMI_D01, PIN_FUN1, PIN_4MA, PIN_3_3V, 0 },
+ { PINID_GPMI_D02, PIN_FUN1, PIN_4MA, PIN_3_3V, 0 },
+ { PINID_GPMI_D03, PIN_FUN1, PIN_4MA, PIN_3_3V, 0 },
+ { PINID_GPMI_D04, PIN_FUN1, PIN_4MA, PIN_3_3V, 0 },
+ { PINID_GPMI_D05, PIN_FUN1, PIN_4MA, PIN_3_3V, 0 },
+ { PINID_GPMI_D06, PIN_FUN1, PIN_4MA, PIN_3_3V, 0 },
+ { PINID_GPMI_D07, PIN_FUN1, PIN_4MA, PIN_3_3V, 0 },
+ { PINID_GPMI_RDY0, PIN_FUN1, PIN_4MA, PIN_3_3V, 0 },
+ { PINID_GPMI_RDY2, PIN_FUN1, PIN_4MA, PIN_3_3V, 0 },
+ { PINID_GPMI_RDY3, PIN_FUN1, PIN_4MA, PIN_3_3V, 0 },
+ { PINID_GPMI_WRN, PIN_FUN1, PIN_12MA, PIN_3_3V, 0 },
+ { PINID_GPMI_RDN, PIN_FUN1, PIN_12MA, PIN_3_3V, 0 },
+};
+
+static struct pin_group gpmi_pins = {
+ .pins = gpmi_pins_desc,
+ .nr_pins = ARRAY_SIZE(gpmi_pins_desc),
+};
+
+static struct mtd_partition gpmi_partitions[] = {
+ [0] = {
+ .name = "boot",
+ .size = 10 * SZ_1M,
+ .offset = 0,
+ },
+ [1] = {
+ .name = "data",
+ .size = MTDPART_SIZ_FULL,
+ .offset = MTDPART_OFS_APPEND,
+ },
+};
+
+static struct gpmi_platform_data gpmi_data = {
+ .pins = &gpmi_pins,
+ .nr_parts = ARRAY_SIZE(gpmi_partitions),
+ .parts = gpmi_partitions,
+ .part_types = { "cmdline", NULL },
+};
+
+static struct spi_board_info spi_board_info[] __initdata = {
+#if defined(CONFIG_ENC28J60) || defined(CONFIG_ENC28J60_MODULE)
+ {
+ .modalias = "enc28j60",
+ .max_speed_hz = 6 * 1000 * 1000,
+ .bus_num = 1,
+ .chip_select = 0,
+ .platform_data = NULL,
+ },
+#endif
+};
+
static void __init stmp378x_devb_init(void)
{
stmp3xxx_pinmux_init(NR_REAL_IRQS);
@@ -64,9 +305,22 @@
stmp3xxx_init();
stmp3xxx_dbguart.dev.platform_data = dbguart_pins_control;
+ stmp3xxx_appuart.dev.platform_data = appuart_pins;
+ stmp3xxx_mmc.dev.platform_data = &mmc_data;
+ stmp3xxx_gpmi.dev.platform_data = &gpmi_data;
+ stmp3xxx_spi1.dev.platform_data = &ssp1_pins;
+ stmp3xxx_spi2.dev.platform_data = &ssp2_pins;
+ stmp378x_i2c.dev.platform_data = &i2c_pins;
+
+ /* register spi devices */
+ spi_register_board_info(spi_board_info, ARRAY_SIZE(spi_board_info));
/* add board's devices */
platform_add_devices(devices, ARRAY_SIZE(devices));
+
+ /* add devices selected by command line ssp1= and ssp2= options */
+ stmp3xxx_ssp1_device_register();
+ stmp3xxx_ssp2_device_register();
}
MACHINE_START(STMP378X, "STMP378X")