* [PATCH v5] ARM: mxs: Add initial support for Bluegiga APX4 Development Kit
2012-01-23 16:13 ` Arnd Bergmann
@ 2012-02-03 14:20 ` Lauri Hintsala
2012-02-04 0:26 ` Shawn Guo
0 siblings, 1 reply; 9+ messages in thread
From: Lauri Hintsala @ 2012-02-03 14:20 UTC (permalink / raw)
To: linux-arm-kernel
Added initial support for APX4 Development Kit with RTC, LED, Ethernet,
Audio, SDIO, I2C, DUART and AUART support.
Signed-off-by: Lauri Hintsala <lauri.hintsala@bluegiga.com>
Signed-off-by: Veli-Pekka Peltola <veli-pekka.peltola@bluegiga.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
Hello Shawn,
This updated version of apx4devkit board support patch. Patch depends
on your mx23/mx28 soc detect code.
Patch is based on v3.3-rc1
changes since v4:
* added mxs_restart hook
* added saif platform data
arch/arm/mach-mxs/Kconfig | 16 ++
arch/arm/mach-mxs/Makefile | 1 +
arch/arm/mach-mxs/mach-apx4devkit.c | 260 +++++++++++++++++++++++++++++++++++
3 files changed, 277 insertions(+), 0 deletions(-)
create mode 100644 arch/arm/mach-mxs/mach-apx4devkit.c
diff --git a/arch/arm/mach-mxs/Kconfig b/arch/arm/mach-mxs/Kconfig
index cf00b3e..c57f996 100644
--- a/arch/arm/mach-mxs/Kconfig
+++ b/arch/arm/mach-mxs/Kconfig
@@ -83,6 +83,18 @@ config MODULE_M28
select MXS_HAVE_PLATFORM_MXSFB
select MXS_OCOTP
+config MODULE_APX4
+ bool
+ select SOC_IMX28
+ select LEDS_GPIO_REGISTER
+ select MXS_HAVE_AMBA_DUART
+ select MXS_HAVE_PLATFORM_AUART
+ select MXS_HAVE_PLATFORM_FEC
+ select MXS_HAVE_PLATFORM_MXS_I2C
+ select MXS_HAVE_PLATFORM_MXS_MMC
+ select MXS_HAVE_PLATFORM_MXS_SAIF
+ select MXS_OCOTP
+
config MACH_TX28
bool "Ka-Ro TX28 module"
select MODULE_TX28
@@ -91,4 +103,8 @@ config MACH_M28EVK
bool "Support DENX M28EVK Platform"
select MODULE_M28
+config MACH_APX4DEVKIT
+ bool "Support Bluegiga APX4 Development Kit"
+ select MODULE_APX4
+
endif
diff --git a/arch/arm/mach-mxs/Makefile b/arch/arm/mach-mxs/Makefile
index 8c93b24..908bf9a 100644
--- a/arch/arm/mach-mxs/Makefile
+++ b/arch/arm/mach-mxs/Makefile
@@ -11,6 +11,7 @@ obj-$(CONFIG_MACH_STMP378X_DEVB) += mach-stmp378x_devb.o
obj-$(CONFIG_MACH_MX23EVK) += mach-mx23evk.o
obj-$(CONFIG_MACH_MX28EVK) += mach-mx28evk.o
obj-$(CONFIG_MACH_M28EVK) += mach-m28evk.o
+obj-$(CONFIG_MACH_APX4DEVKIT) += mach-apx4devkit.o
obj-$(CONFIG_MODULE_TX28) += module-tx28.o
obj-$(CONFIG_MACH_TX28) += mach-tx28.o
diff --git a/arch/arm/mach-mxs/mach-apx4devkit.c b/arch/arm/mach-mxs/mach-apx4devkit.c
new file mode 100644
index 0000000..48a7fab
--- /dev/null
+++ b/arch/arm/mach-mxs/mach-apx4devkit.c
@@ -0,0 +1,260 @@
+/*
+ * Copyright (C) 2011-2012
+ * Lauri Hintsala, Bluegiga, <lauri.hintsala@bluegiga.com>
+ * Veli-Pekka Peltola, Bluegiga, <veli-pekka.peltola@bluegiga.com>
+ *
+ * based on: mach-mx28evk.c
+ * Copyright 2010 Freescale Semiconductor, Inc. All Rights Reserved.
+ *
+ * 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.
+ */
+
+#include <linux/delay.h>
+#include <linux/platform_device.h>
+#include <linux/gpio.h>
+#include <linux/leds.h>
+#include <linux/clk.h>
+#include <linux/i2c.h>
+#include <linux/regulator/machine.h>
+#include <linux/regulator/fixed.h>
+#include <linux/micrel_phy.h>
+
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/time.h>
+
+#include <mach/common.h>
+#include <mach/digctl.h>
+#include <mach/iomux-mx28.h>
+
+#include "devices-mx28.h"
+
+#define APX4DEVKIT_GPIO_USERLED MXS_GPIO_NR(3, 28)
+
+static const iomux_cfg_t apx4devkit_pads[] __initconst = {
+ /* duart */
+ MX28_PAD_PWM0__DUART_RX | MXS_PAD_CTRL,
+ MX28_PAD_PWM1__DUART_TX | MXS_PAD_CTRL,
+
+ /* auart0 */
+ MX28_PAD_AUART0_RX__AUART0_RX | MXS_PAD_CTRL,
+ MX28_PAD_AUART0_TX__AUART0_TX | MXS_PAD_CTRL,
+ MX28_PAD_AUART0_CTS__AUART0_CTS | MXS_PAD_CTRL,
+ MX28_PAD_AUART0_RTS__AUART0_RTS | MXS_PAD_CTRL,
+
+ /* auart1 */
+ MX28_PAD_AUART1_RX__AUART1_RX | MXS_PAD_CTRL,
+ MX28_PAD_AUART1_TX__AUART1_TX | MXS_PAD_CTRL,
+
+ /* auart2 */
+ MX28_PAD_SSP2_SCK__AUART2_RX | MXS_PAD_CTRL,
+ MX28_PAD_SSP2_MOSI__AUART2_TX | MXS_PAD_CTRL,
+
+ /* auart3 */
+ MX28_PAD_SSP2_MISO__AUART3_RX | MXS_PAD_CTRL,
+ MX28_PAD_SSP2_SS0__AUART3_TX | MXS_PAD_CTRL,
+
+#define MXS_PAD_FEC (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP)
+ /* fec0 */
+ MX28_PAD_ENET0_MDC__ENET0_MDC | MXS_PAD_FEC,
+ MX28_PAD_ENET0_MDIO__ENET0_MDIO | MXS_PAD_FEC,
+ MX28_PAD_ENET0_RX_EN__ENET0_RX_EN | MXS_PAD_FEC,
+ MX28_PAD_ENET0_RXD0__ENET0_RXD0 | MXS_PAD_FEC,
+ MX28_PAD_ENET0_RXD1__ENET0_RXD1 | MXS_PAD_FEC,
+ MX28_PAD_ENET0_TX_EN__ENET0_TX_EN | MXS_PAD_FEC,
+ MX28_PAD_ENET0_TXD0__ENET0_TXD0 | MXS_PAD_FEC,
+ MX28_PAD_ENET0_TXD1__ENET0_TXD1 | MXS_PAD_FEC,
+ MX28_PAD_ENET_CLK__CLKCTRL_ENET | MXS_PAD_FEC,
+
+ /* i2c */
+ MX28_PAD_I2C0_SCL__I2C0_SCL,
+ MX28_PAD_I2C0_SDA__I2C0_SDA,
+
+ /* mmc0 */
+ MX28_PAD_SSP0_DATA0__SSP0_D0 |
+ (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
+ MX28_PAD_SSP0_DATA1__SSP0_D1 |
+ (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
+ MX28_PAD_SSP0_DATA2__SSP0_D2 |
+ (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
+ MX28_PAD_SSP0_DATA3__SSP0_D3 |
+ (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
+ MX28_PAD_SSP0_DATA4__SSP0_D4 |
+ (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
+ MX28_PAD_SSP0_DATA5__SSP0_D5 |
+ (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
+ MX28_PAD_SSP0_DATA6__SSP0_D6 |
+ (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
+ MX28_PAD_SSP0_DATA7__SSP0_D7 |
+ (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
+ MX28_PAD_SSP0_CMD__SSP0_CMD |
+ (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
+ MX28_PAD_SSP0_DETECT__SSP0_CARD_DETECT |
+ (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
+ MX28_PAD_SSP0_SCK__SSP0_SCK |
+ (MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
+
+ /* led */
+ MX28_PAD_PWM3__GPIO_3_28 | MXS_PAD_CTRL,
+
+ /* saif0 & saif1 */
+ MX28_PAD_SAIF0_MCLK__SAIF0_MCLK |
+ (MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
+ MX28_PAD_SAIF0_LRCLK__SAIF0_LRCLK |
+ (MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
+ MX28_PAD_SAIF0_BITCLK__SAIF0_BITCLK |
+ (MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
+ MX28_PAD_SAIF0_SDATA0__SAIF0_SDATA0 |
+ (MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
+ MX28_PAD_SAIF1_SDATA0__SAIF1_SDATA0 |
+ (MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
+};
+
+/* led */
+static const struct gpio_led apx4devkit_leds[] __initconst = {
+ {
+ .name = "user-led",
+ .default_trigger = "heartbeat",
+ .gpio = APX4DEVKIT_GPIO_USERLED,
+ },
+};
+
+static const struct gpio_led_platform_data apx4devkit_led_data __initconst = {
+ .leds = apx4devkit_leds,
+ .num_leds = ARRAY_SIZE(apx4devkit_leds),
+};
+
+static const struct fec_platform_data mx28_fec_pdata __initconst = {
+ .phy = PHY_INTERFACE_MODE_RMII,
+};
+
+static const struct mxs_mmc_platform_data apx4devkit_mmc_pdata __initconst = {
+ .wp_gpio = -EINVAL,
+ .flags = SLOTF_4_BIT_CAPABLE,
+};
+
+static const struct i2c_board_info apx4devkit_i2c_boardinfo[] __initconst = {
+ { I2C_BOARD_INFO("sgtl5000", 0x0a) }, /* ASoC */
+ { I2C_BOARD_INFO("pcf8563", 0x51) }, /* RTC */
+};
+
+#if defined(CONFIG_REGULATOR_FIXED_VOLTAGE) || \
+ defined(CONFIG_REGULATOR_FIXED_VOLTAGE_MODULE)
+static struct regulator_consumer_supply apx4devkit_audio_consumer_supplies[] = {
+ REGULATOR_SUPPLY("VDDA", "0-000a"),
+ REGULATOR_SUPPLY("VDDIO", "0-000a"),
+};
+
+static struct regulator_init_data apx4devkit_vdd_reg_init_data = {
+ .constraints = {
+ .name = "3V3",
+ .always_on = 1,
+ },
+ .consumer_supplies = apx4devkit_audio_consumer_supplies,
+ .num_consumer_supplies = ARRAY_SIZE(apx4devkit_audio_consumer_supplies),
+};
+
+static struct fixed_voltage_config apx4devkit_vdd_pdata = {
+ .supply_name = "board-3V3",
+ .microvolts = 3300000,
+ .gpio = -EINVAL,
+ .enabled_at_boot = 1,
+ .init_data = &apx4devkit_vdd_reg_init_data,
+};
+
+static struct platform_device apx4devkit_voltage_regulator = {
+ .name = "reg-fixed-voltage",
+ .id = -1,
+ .num_resources = 0,
+ .dev = {
+ .platform_data = &apx4devkit_vdd_pdata,
+ },
+};
+
+static void __init apx4devkit_add_regulators(void)
+{
+ platform_device_register(&apx4devkit_voltage_regulator);
+}
+#else
+static void __init apx4devkit_add_regulators(void) {}
+#endif
+
+static const struct mxs_saif_platform_data
+ apx4devkit_mxs_saif_pdata[] __initconst = {
+ /* working on EXTMSTR0 mode (saif0 master, saif1 slave) */
+ {
+ .master_mode = 1,
+ .master_id = 0,
+ }, {
+ .master_mode = 0,
+ .master_id = 0,
+ },
+};
+
+static int apx4devkit_phy_fixup(struct phy_device *phy)
+{
+ phy->dev_flags |= MICREL_PHY_50MHZ_CLK;
+ return 0;
+}
+
+static void __init apx4devkit_init(void)
+{
+ mxs_iomux_setup_multiple_pads(apx4devkit_pads,
+ ARRAY_SIZE(apx4devkit_pads));
+
+ mx28_add_duart();
+ mx28_add_auart0();
+ mx28_add_auart1();
+ mx28_add_auart2();
+ mx28_add_auart3();
+
+ /*
+ * Register fixup for the Micrel KS8031 PHY clock
+ * (shares same ID with KS8051)
+ */
+ phy_register_fixup_for_uid(PHY_ID_KS8051, MICREL_PHY_ID_MASK,
+ apx4devkit_phy_fixup);
+
+ mx28_add_fec(0, &mx28_fec_pdata);
+
+ mx28_add_mxs_mmc(0, &apx4devkit_mmc_pdata);
+
+ gpio_led_register_device(0, &apx4devkit_led_data);
+
+ mxs_saif_clkmux_select(MXS_DIGCTL_SAIF_CLKMUX_EXTMSTR0);
+ mx28_add_saif(0, &apx4devkit_mxs_saif_pdata[0]);
+ mx28_add_saif(1, &apx4devkit_mxs_saif_pdata[1]);
+
+ apx4devkit_add_regulators();
+
+ mx28_add_mxs_i2c(0);
+ i2c_register_board_info(0, apx4devkit_i2c_boardinfo,
+ ARRAY_SIZE(apx4devkit_i2c_boardinfo));
+
+ mxs_add_platform_device("mxs-sgtl5000", 0, NULL, 0, NULL, 0);
+}
+
+static void __init apx4devkit_timer_init(void)
+{
+ mx28_clocks_init();
+}
+
+static struct sys_timer apx4devkit_timer = {
+ .init = apx4devkit_timer_init,
+};
+
+MACHINE_START(APX4DEVKIT, "Bluegiga APX4 Development Kit")
+ .map_io = mx28_map_io,
+ .init_irq = mx28_init_irq,
+ .timer = &apx4devkit_timer,
+ .init_machine = apx4devkit_init,
+ .restart = mxs_restart,
+MACHINE_END
--
1.7.5.4
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