--- /dev/null
+From e71075202707e044a28604bd929fd6f7a89adeae Mon Sep 17 00:00:00 2001
+From: Robert Nelson <robertcnelson@gmail.com>
+Date: Mon, 21 Jan 2013 11:47:02 -0600
+Subject: [PATCH 02/10] Beagle: expansion: add zippy
+
+v2: add #include <linux/regulator/fixed.h>
+build fix from Pantelis Antoniou <panto@antoniou-consulting.com>
+
+Signed-off-by: Robert Nelson <robertcnelson@gmail.com>
+---
+ arch/arm/mach-omap2/board-omap3beagle.c | 164 +++++++++++++++++++++++++++++--
+ 1 file changed, 158 insertions(+), 6 deletions(-)
+
+diff --git a/arch/arm/mach-omap2/board-omap3beagle.c b/arch/arm/mach-omap2/board-omap3beagle.c
+index 4e6e767..b3685ed 100644
+--- a/arch/arm/mach-omap2/board-omap3beagle.c
++++ b/arch/arm/mach-omap2/board-omap3beagle.c
+@@ -37,6 +37,7 @@
+ #include <linux/usb/nop-usb-xceiv.h>
+
+ #include <linux/regulator/machine.h>
++#include <linux/regulator/fixed.h>
+ #include <linux/i2c/twl.h>
+
+ #include <asm/mach-types.h>
+@@ -195,6 +196,86 @@ static void __init omap3_beagle_init_rev(void)
+
+ char expansionboard_name[16];
+
++enum {
++ EXPANSION_MMC_NONE = 0,
++ EXPANSION_MMC_ZIPPY,
++ EXPANSION_MMC_WIFI,
++};
++
++enum {
++ EXPANSION_I2C_NONE = 0,
++ EXPANSION_I2C_ZIPPY,
++};
++
++static struct {
++ int mmc_settings;
++ int i2c_settings;
++} expansion_config = {
++ .mmc_settings = EXPANSION_MMC_NONE,
++ .i2c_settings = EXPANSION_I2C_NONE,
++};
++
++//rcn-ee: this is just a fake regulator, the zippy hardware provides 3.3/1.8 with jumper..
++static struct fixed_voltage_config beagle_vzippy = {
++ .supply_name = "vzippy",
++ .microvolts = 3300000, /* 3.3V */
++ .startup_delay = 70000, /* 70ms */
++ .enable_high = 1,
++ .enabled_at_boot = 0,
++ .init_data = &beagle_vmmc2,
++};
++
++static struct platform_device omap_zippy_device = {
++ .name = "reg-fixed-voltage",
++ .id = 1,
++ .dev = {
++ .platform_data = &beagle_vzippy,
++ },
++};
++
++#define OMAP3BEAGLE_GPIO_ZIPPY_MMC_WP 141
++#define OMAP3BEAGLE_GPIO_ZIPPY_MMC_CD 162
++
++#if IS_ENABLED(CONFIG_ENC28J60)
++#include <linux/platform_data/spi-omap2-mcspi.h>
++#include <linux/spi/spi.h>
++
++#define OMAP3BEAGLE_GPIO_ENC28J60_IRQ 157
++
++static struct omap2_mcspi_device_config enc28j60_spi_chip_info = {
++ .turbo_mode = 0,
++};
++
++static struct spi_board_info omap3beagle_zippy_spi_board_info[] __initdata = {
++ {
++ .modalias = "enc28j60",
++ .bus_num = 4,
++ .chip_select = 0,
++ .max_speed_hz = 20000000,
++ .controller_data = &enc28j60_spi_chip_info,
++ },
++};
++
++static void __init omap3beagle_enc28j60_init(void)
++{
++ if ((gpio_request(OMAP3BEAGLE_GPIO_ENC28J60_IRQ, "ENC28J60_IRQ") == 0) &&
++ (gpio_direction_input(OMAP3BEAGLE_GPIO_ENC28J60_IRQ) == 0)) {
++ gpio_export(OMAP3BEAGLE_GPIO_ENC28J60_IRQ, 0);
++ omap3beagle_zippy_spi_board_info[0].irq = gpio_to_irq(OMAP3BEAGLE_GPIO_ENC28J60_IRQ);
++ irq_set_irq_type(omap3beagle_zippy_spi_board_info[0].irq, IRQ_TYPE_EDGE_FALLING);
++ } else {
++ pr_err("Beagle expansionboard: could not obtain gpio for ENC28J60_IRQ\n");
++ return;
++ }
++
++ spi_register_board_info(omap3beagle_zippy_spi_board_info,
++ ARRAY_SIZE(omap3beagle_zippy_spi_board_info));
++}
++
++#else
++static inline void __init omap3beagle_enc28j60_init(void) { return; }
++#endif
++
+ static struct mtd_partition omap3beagle_nand_partitions[] = {
+ /* All the partition sizes are listed in terms of NAND block size */
+ {
+@@ -271,6 +352,23 @@ static struct omap2_hsmmc_info mmc[] = {
+ {} /* Terminator */
+ };
+
++static struct omap2_hsmmc_info mmc_zippy[] = {
++ {
++ .mmc = 1,
++ .caps = MMC_CAP_4_BIT_DATA,
++ .gpio_wp = -EINVAL,
++ .deferred = true,
++ },
++ {
++ .mmc = 2,
++ .caps = MMC_CAP_4_BIT_DATA,
++ .gpio_wp = OMAP3BEAGLE_GPIO_ZIPPY_MMC_WP,
++ .gpio_cd = OMAP3BEAGLE_GPIO_ZIPPY_MMC_CD,
++ .transceiver = true,
++ .deferred = true,
++ },
++ {} /* Terminator */
++};
+ static struct regulator_consumer_supply beagle_vmmc1_supply[] = {
+ REGULATOR_SUPPLY("vmmc", "omap_hsmmc.0"),
+ };
+@@ -301,10 +399,21 @@ static int beagle_twl_gpio_setup(struct device *dev,
+ {
+ int r;
+
+- mmc[0].gpio_wp = beagle_config.mmc1_gpio_wp;
+- /* gpio + 0 is "mmc0_cd" (input/IRQ) */
+- mmc[0].gpio_cd = gpio + 0;
+- omap_hsmmc_late_init(mmc);
++ switch (expansion_config.mmc_settings) {
++ case EXPANSION_MMC_ZIPPY:
++ mmc_zippy[0].gpio_wp = beagle_config.mmc1_gpio_wp;
++ /* gpio + 0 is "mmc0_cd" (input/IRQ) */
++ mmc_zippy[0].gpio_cd = gpio + 0;
++
++ omap_hsmmc_late_init(mmc_zippy);
++ break;
++ default:
++ mmc[0].gpio_wp = beagle_config.mmc1_gpio_wp;
++ /* gpio + 0 is "mmc0_cd" (input/IRQ) */
++ mmc[0].gpio_cd = gpio + 0;
++
++ omap_hsmmc_late_init(mmc);
++ }
+
+ /*
+ * TWL4030_GPIO_MAX + 0 == ledA, EHCI nEN_USB_PWR (out, XM active
+@@ -396,6 +505,14 @@ static struct i2c_board_info __initdata beagle_i2c_eeprom[] = {
+ },
+ };
+
++static struct i2c_board_info __initdata zippy_i2c2_rtc[] = {
++#if defined(CONFIG_RTC_DRV_DS1307) || defined(CONFIG_RTC_DRV_DS1307_MODULE)
++ {
++ I2C_BOARD_INFO("ds1307", 0x68),
++ },
++#endif
++};
++
+ static int __init omap3_beagle_i2c_init(void)
+ {
+ omap3_pmic_get_config(&beagle_twldata,
+@@ -406,6 +523,15 @@ static int __init omap3_beagle_i2c_init(void)
+ beagle_twldata.vpll2->constraints.name = "VDVI";
+
+ omap3_pmic_init("twl4030", &beagle_twldata);
++
++ switch (expansion_config.i2c_settings) {
++ case EXPANSION_I2C_ZIPPY:
++ omap_register_i2c_bus(2, 400, zippy_i2c2_rtc, ARRAY_SIZE(zippy_i2c2_rtc));
++ break;
++ default:
++ omap_register_i2c_bus(2, 400, NULL, 0);
++ }
++
+ /* Bus 3 is attached to the DVI port where devices like the pico DLP
+ * projector don't work reliably with 400kHz */
+ omap_register_i2c_bus(3, 100, beagle_i2c_eeprom, ARRAY_SIZE(beagle_i2c_eeprom));
+@@ -548,10 +674,30 @@ static void __init omap3_beagle_init(void)
+ omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
+ omap3_beagle_init_rev();
+
++ if (!strcmp(expansionboard_name, "zippy"))
++ {
++ pr_info("Beagle expansionboard: initializing zippy mmc\n");
++ platform_device_register(&omap_zippy_device);
++
++ expansion_config.i2c_settings = EXPANSION_I2C_ZIPPY;
++ expansion_config.mmc_settings = EXPANSION_MMC_ZIPPY;
++
++ omap_mux_init_gpio(OMAP3BEAGLE_GPIO_ZIPPY_MMC_WP, OMAP_PIN_INPUT);
++ omap_mux_init_gpio(OMAP3BEAGLE_GPIO_ZIPPY_MMC_CD, OMAP_PIN_INPUT);
++ }
++
+ if (gpio_is_valid(beagle_config.mmc1_gpio_wp))
+ omap_mux_init_gpio(beagle_config.mmc1_gpio_wp, OMAP_PIN_INPUT);
+- mmc[0].caps = beagle_config.mmc_caps;
+- omap_hsmmc_init(mmc);
++
++ switch (expansion_config.mmc_settings) {
++ case EXPANSION_MMC_ZIPPY:
++ mmc_zippy[0].caps = beagle_config.mmc_caps;
++ omap_hsmmc_init(mmc_zippy);
++ break;
++ default:
++ mmc[0].caps = beagle_config.mmc_caps;
++ omap_hsmmc_init(mmc);
++ }
+
+ omap3_beagle_i2c_init();
+
+@@ -566,6 +712,12 @@ static void __init omap3_beagle_init(void)
+ omap_sdrc_init(mt46h32m32lf6_sdrc_params,
+ mt46h32m32lf6_sdrc_params);
+
++ if (!strcmp(expansionboard_name, "zippy"))
++ {
++ pr_info("Beagle expansionboard: initializing enc28j60\n");
++ omap3beagle_enc28j60_init();
++ }
++
+ usb_bind_phy("musb-hdrc.0.auto", 0, "twl4030_usb");
+ usb_musb_init(NULL);
+
+--
+1.7.10.4
+
projects / ipfire-2.x.git / blobdiff