[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>

3 files changed, 316 insertions, 0 deletions

diff --git a/arch/arm/mach-stmp378x/stmp378x.c b/arch/arm/mach-stmp378x/stmp378x.c
index 9a363fb..ddd49a7 100644
--- a/arch/arm/mach-stmp378x/stmp378x.c
+++ b/arch/arm/mach-stmp378x/stmp378x.c
@@ -19,6 +19,7 @@
 #include <linux/init.h>
 #include <linux/platform_device.h>
 #include <linux/irq.h>
+#include <linux/dma-mapping.h>
 
 #include <asm/dma.h>
 #include <asm/setup.h>
@@ -39,6 +40,8 @@
 #include <mach/regs-icoll.h>
 #include <mach/regs-apbh.h>
 #include <mach/regs-apbx.h>
+#include <mach/regs-pxp.h>
+#include <mach/regs-i2c.h>
 
 #include "stmp378x.h"
 /*
@@ -232,6 +235,64 @@ static struct map_desc stmp378x_io_desc[] __initdata = {
 	},
 };
 
+
+static u64 common_dmamask = DMA_BIT_MASK(32);
+
+/*
+ * devices that are present only on stmp378x, not on all 3xxx boards:
+ * 	PxP
+ * 	I2C
+ */
+static struct resource pxp_resource[] = {
+	{
+		.flags	= IORESOURCE_MEM,
+		.start	= REGS_PXP_PHYS,
+		.end	= REGS_PXP_PHYS + REGS_PXP_SIZE,
+	}, {
+		.flags	= IORESOURCE_IRQ,
+		.start	= IRQ_PXP,
+		.end	= IRQ_PXP,
+	},
+};
+
+struct platform_device stmp378x_pxp = {
+	.name		= "stmp3xxx-pxp",
+	.id		= -1,
+	.dev		= {
+		.dma_mask		= &common_dmamask,
+		.coherent_dma_mask	= DMA_BIT_MASK(32),
+	},
+	.num_resources	= ARRAY_SIZE(pxp_resource),
+	.resource	= pxp_resource,
+};
+
+static struct resource i2c_resources[] = {
+	{
+		.flags = IORESOURCE_IRQ,
+		.start = IRQ_I2C_ERROR,
+		.end = IRQ_I2C_ERROR,
+	}, {
+		.flags = IORESOURCE_MEM,
+		.start = REGS_I2C_PHYS,
+		.end = REGS_I2C_PHYS + REGS_I2C_SIZE,
+	}, {
+		.flags = IORESOURCE_DMA,
+		.start = STMP3XXX_DMA(3, STMP3XXX_BUS_APBX),
+		.end = STMP3XXX_DMA(3, STMP3XXX_BUS_APBX),
+	},
+};
+
+struct platform_device stmp378x_i2c = {
+	.name = "i2c_stmp3xxx",
+	.id = 0,
+	.dev	= {
+		.dma_mask	= &common_dmamask,
+		.coherent_dma_mask = DMA_BIT_MASK(32),
+	},
+	.resource = i2c_resources,
+	.num_resources = ARRAY_SIZE(i2c_resources),
+};
+
 void __init stmp378x_map_io(void)
 {
 	iotable_init(stmp378x_io_desc, ARRAY_SIZE(stmp378x_io_desc));
diff --git a/arch/arm/mach-stmp378x/stmp378x.h b/arch/arm/mach-stmp378x/stmp378x.h
index 473de64..0dc15b3 100644
--- a/arch/arm/mach-stmp378x/stmp378x.h
+++ b/arch/arm/mach-stmp378x/stmp378x.h
@@ -21,4 +21,5 @@
 void stmp378x_map_io(void);
 void stmp378x_init_irq(void);
 
+extern struct platform_device stmp378x_pxp, stmp378x_i2c;
 #endif /* __MACH_STMP378X_COMMON_H */
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 @@ static int dbguart_pins_control(int id, int request)
 	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 @@ static void __init stmp378x_devb_init(void)
 	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")