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-rw-r--r--arch/arm/mach-davinci/board-mityomapl138.c635
1 files changed, 635 insertions, 0 deletions
diff --git a/arch/arm/mach-davinci/board-mityomapl138.c b/arch/arm/mach-davinci/board-mityomapl138.c
new file mode 100644
index 000000000..5205008c8
--- /dev/null
+++ b/arch/arm/mach-davinci/board-mityomapl138.c
@@ -0,0 +1,635 @@
+/*
+ * Critical Link MityOMAP-L138 SoM
+ *
+ * Copyright (C) 2010 Critical Link LLC - https://www.criticallink.com
+ *
+ * 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.
+ */
+
+#define pr_fmt(fmt) "MityOMAPL138: " fmt
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/console.h>
+#include <linux/platform_device.h>
+#include <linux/property.h>
+#include <linux/mtd/partitions.h>
+#include <linux/notifier.h>
+#include <linux/nvmem-consumer.h>
+#include <linux/nvmem-provider.h>
+#include <linux/regulator/machine.h>
+#include <linux/i2c.h>
+#include <linux/etherdevice.h>
+#include <linux/spi/spi.h>
+#include <linux/spi/flash.h>
+
+#include <asm/io.h>
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <mach/common.h>
+#include <mach/da8xx.h>
+#include <linux/platform_data/mtd-davinci.h>
+#include <linux/platform_data/mtd-davinci-aemif.h>
+#include <linux/platform_data/ti-aemif.h>
+#include <mach/mux.h>
+#include <linux/platform_data/spi-davinci.h>
+
+#define MITYOMAPL138_PHY_ID ""
+
+#define FACTORY_CONFIG_MAGIC 0x012C0138
+#define FACTORY_CONFIG_VERSION 0x00010001
+
+/* Data Held in On-Board I2C device */
+struct factory_config {
+ u32 magic;
+ u32 version;
+ u8 mac[6];
+ u32 fpga_type;
+ u32 spare;
+ u32 serialnumber;
+ char partnum[32];
+};
+
+static struct factory_config factory_config;
+
+#ifdef CONFIG_CPU_FREQ
+struct part_no_info {
+ const char *part_no; /* part number string of interest */
+ int max_freq; /* khz */
+};
+
+static struct part_no_info mityomapl138_pn_info[] = {
+ {
+ .part_no = "L138-C",
+ .max_freq = 300000,
+ },
+ {
+ .part_no = "L138-D",
+ .max_freq = 375000,
+ },
+ {
+ .part_no = "L138-F",
+ .max_freq = 456000,
+ },
+ {
+ .part_no = "1808-C",
+ .max_freq = 300000,
+ },
+ {
+ .part_no = "1808-D",
+ .max_freq = 375000,
+ },
+ {
+ .part_no = "1808-F",
+ .max_freq = 456000,
+ },
+ {
+ .part_no = "1810-D",
+ .max_freq = 375000,
+ },
+};
+
+static void mityomapl138_cpufreq_init(const char *partnum)
+{
+ int i, ret;
+
+ for (i = 0; partnum && i < ARRAY_SIZE(mityomapl138_pn_info); i++) {
+ /*
+ * the part number has additional characters beyond what is
+ * stored in the table. This information is not needed for
+ * determining the speed grade, and would require several
+ * more table entries. Only check the first N characters
+ * for a match.
+ */
+ if (!strncmp(partnum, mityomapl138_pn_info[i].part_no,
+ strlen(mityomapl138_pn_info[i].part_no))) {
+ da850_max_speed = mityomapl138_pn_info[i].max_freq;
+ break;
+ }
+ }
+
+ ret = da850_register_cpufreq("pll0_sysclk3");
+ if (ret)
+ pr_warn("cpufreq registration failed: %d\n", ret);
+}
+#else
+static void mityomapl138_cpufreq_init(const char *partnum) { }
+#endif
+
+static int read_factory_config(struct notifier_block *nb,
+ unsigned long event, void *data)
+{
+ int ret;
+ const char *partnum = NULL;
+ struct nvmem_device *nvmem = data;
+
+ if (strcmp(nvmem_dev_name(nvmem), "1-00500") != 0)
+ return NOTIFY_DONE;
+
+ if (!IS_BUILTIN(CONFIG_NVMEM)) {
+ pr_warn("Factory Config not available without CONFIG_NVMEM\n");
+ goto bad_config;
+ }
+
+ ret = nvmem_device_read(nvmem, 0, sizeof(factory_config),
+ &factory_config);
+ if (ret != sizeof(struct factory_config)) {
+ pr_warn("Read Factory Config Failed: %d\n", ret);
+ goto bad_config;
+ }
+
+ if (factory_config.magic != FACTORY_CONFIG_MAGIC) {
+ pr_warn("Factory Config Magic Wrong (%X)\n",
+ factory_config.magic);
+ goto bad_config;
+ }
+
+ if (factory_config.version != FACTORY_CONFIG_VERSION) {
+ pr_warn("Factory Config Version Wrong (%X)\n",
+ factory_config.version);
+ goto bad_config;
+ }
+
+ partnum = factory_config.partnum;
+ pr_info("Part Number = %s\n", partnum);
+
+bad_config:
+ /* default maximum speed is valid for all platforms */
+ mityomapl138_cpufreq_init(partnum);
+
+ return NOTIFY_STOP;
+}
+
+static struct notifier_block mityomapl138_nvmem_notifier = {
+ .notifier_call = read_factory_config,
+};
+
+/*
+ * We don't define a cell for factory config as it will be accessed from the
+ * board file using the nvmem notifier chain.
+ */
+static struct nvmem_cell_info mityomapl138_nvmem_cells[] = {
+ {
+ .name = "macaddr",
+ .offset = 0x64,
+ .bytes = ETH_ALEN,
+ }
+};
+
+static struct nvmem_cell_table mityomapl138_nvmem_cell_table = {
+ .nvmem_name = "1-00500",
+ .cells = mityomapl138_nvmem_cells,
+ .ncells = ARRAY_SIZE(mityomapl138_nvmem_cells),
+};
+
+static struct nvmem_cell_lookup mityomapl138_nvmem_cell_lookup = {
+ .nvmem_name = "1-00500",
+ .cell_name = "macaddr",
+ .dev_id = "davinci_emac.1",
+ .con_id = "mac-address",
+};
+
+static const struct property_entry mityomapl138_fd_chip_properties[] = {
+ PROPERTY_ENTRY_U32("pagesize", 8),
+ PROPERTY_ENTRY_BOOL("read-only"),
+ { }
+};
+
+static struct davinci_i2c_platform_data mityomap_i2c_0_pdata = {
+ .bus_freq = 100, /* kHz */
+ .bus_delay = 0, /* usec */
+};
+
+/* TPS65023 voltage regulator support */
+/* 1.2V Core */
+static struct regulator_consumer_supply tps65023_dcdc1_consumers[] = {
+ {
+ .supply = "cvdd",
+ },
+};
+
+/* 1.8V */
+static struct regulator_consumer_supply tps65023_dcdc2_consumers[] = {
+ {
+ .supply = "usb0_vdda18",
+ },
+ {
+ .supply = "usb1_vdda18",
+ },
+ {
+ .supply = "ddr_dvdd18",
+ },
+ {
+ .supply = "sata_vddr",
+ },
+};
+
+/* 1.2V */
+static struct regulator_consumer_supply tps65023_dcdc3_consumers[] = {
+ {
+ .supply = "sata_vdd",
+ },
+ {
+ .supply = "usb_cvdd",
+ },
+ {
+ .supply = "pll0_vdda",
+ },
+ {
+ .supply = "pll1_vdda",
+ },
+};
+
+/* 1.8V Aux LDO, not used */
+static struct regulator_consumer_supply tps65023_ldo1_consumers[] = {
+ {
+ .supply = "1.8v_aux",
+ },
+};
+
+/* FPGA VCC Aux (2.5 or 3.3) LDO */
+static struct regulator_consumer_supply tps65023_ldo2_consumers[] = {
+ {
+ .supply = "vccaux",
+ },
+};
+
+static struct regulator_init_data tps65023_regulator_data[] = {
+ /* dcdc1 */
+ {
+ .constraints = {
+ .min_uV = 1150000,
+ .max_uV = 1350000,
+ .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
+ REGULATOR_CHANGE_STATUS,
+ .boot_on = 1,
+ },
+ .num_consumer_supplies = ARRAY_SIZE(tps65023_dcdc1_consumers),
+ .consumer_supplies = tps65023_dcdc1_consumers,
+ },
+ /* dcdc2 */
+ {
+ .constraints = {
+ .min_uV = 1800000,
+ .max_uV = 1800000,
+ .valid_ops_mask = REGULATOR_CHANGE_STATUS,
+ .boot_on = 1,
+ },
+ .num_consumer_supplies = ARRAY_SIZE(tps65023_dcdc2_consumers),
+ .consumer_supplies = tps65023_dcdc2_consumers,
+ },
+ /* dcdc3 */
+ {
+ .constraints = {
+ .min_uV = 1200000,
+ .max_uV = 1200000,
+ .valid_ops_mask = REGULATOR_CHANGE_STATUS,
+ .boot_on = 1,
+ },
+ .num_consumer_supplies = ARRAY_SIZE(tps65023_dcdc3_consumers),
+ .consumer_supplies = tps65023_dcdc3_consumers,
+ },
+ /* ldo1 */
+ {
+ .constraints = {
+ .min_uV = 1800000,
+ .max_uV = 1800000,
+ .valid_ops_mask = REGULATOR_CHANGE_STATUS,
+ .boot_on = 1,
+ },
+ .num_consumer_supplies = ARRAY_SIZE(tps65023_ldo1_consumers),
+ .consumer_supplies = tps65023_ldo1_consumers,
+ },
+ /* ldo2 */
+ {
+ .constraints = {
+ .min_uV = 2500000,
+ .max_uV = 3300000,
+ .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
+ REGULATOR_CHANGE_STATUS,
+ .boot_on = 1,
+ },
+ .num_consumer_supplies = ARRAY_SIZE(tps65023_ldo2_consumers),
+ .consumer_supplies = tps65023_ldo2_consumers,
+ },
+};
+
+static struct i2c_board_info __initdata mityomap_tps65023_info[] = {
+ {
+ I2C_BOARD_INFO("tps65023", 0x48),
+ .platform_data = &tps65023_regulator_data[0],
+ },
+ {
+ I2C_BOARD_INFO("24c02", 0x50),
+ .properties = mityomapl138_fd_chip_properties,
+ },
+};
+
+static int __init pmic_tps65023_init(void)
+{
+ return i2c_register_board_info(1, mityomap_tps65023_info,
+ ARRAY_SIZE(mityomap_tps65023_info));
+}
+
+/*
+ * SPI Devices:
+ * SPI1_CS0: 8M Flash ST-M25P64-VME6G
+ */
+static struct mtd_partition spi_flash_partitions[] = {
+ [0] = {
+ .name = "ubl",
+ .offset = 0,
+ .size = SZ_64K,
+ .mask_flags = MTD_WRITEABLE,
+ },
+ [1] = {
+ .name = "u-boot",
+ .offset = MTDPART_OFS_APPEND,
+ .size = SZ_512K,
+ .mask_flags = MTD_WRITEABLE,
+ },
+ [2] = {
+ .name = "u-boot-env",
+ .offset = MTDPART_OFS_APPEND,
+ .size = SZ_64K,
+ .mask_flags = MTD_WRITEABLE,
+ },
+ [3] = {
+ .name = "periph-config",
+ .offset = MTDPART_OFS_APPEND,
+ .size = SZ_64K,
+ .mask_flags = MTD_WRITEABLE,
+ },
+ [4] = {
+ .name = "reserved",
+ .offset = MTDPART_OFS_APPEND,
+ .size = SZ_256K + SZ_64K,
+ },
+ [5] = {
+ .name = "kernel",
+ .offset = MTDPART_OFS_APPEND,
+ .size = SZ_2M + SZ_1M,
+ },
+ [6] = {
+ .name = "fpga",
+ .offset = MTDPART_OFS_APPEND,
+ .size = SZ_2M,
+ },
+ [7] = {
+ .name = "spare",
+ .offset = MTDPART_OFS_APPEND,
+ .size = MTDPART_SIZ_FULL,
+ },
+};
+
+static struct flash_platform_data mityomapl138_spi_flash_data = {
+ .name = "m25p80",
+ .parts = spi_flash_partitions,
+ .nr_parts = ARRAY_SIZE(spi_flash_partitions),
+ .type = "m24p64",
+};
+
+static struct davinci_spi_config spi_eprom_config = {
+ .io_type = SPI_IO_TYPE_DMA,
+ .c2tdelay = 8,
+ .t2cdelay = 8,
+};
+
+static struct spi_board_info mityomapl138_spi_flash_info[] = {
+ {
+ .modalias = "m25p80",
+ .platform_data = &mityomapl138_spi_flash_data,
+ .controller_data = &spi_eprom_config,
+ .mode = SPI_MODE_0,
+ .max_speed_hz = 30000000,
+ .bus_num = 1,
+ .chip_select = 0,
+ },
+};
+
+/*
+ * MityDSP-L138 includes a 256 MByte large-page NAND flash
+ * (128K blocks).
+ */
+static struct mtd_partition mityomapl138_nandflash_partition[] = {
+ {
+ .name = "rootfs",
+ .offset = 0,
+ .size = SZ_128M,
+ .mask_flags = 0, /* MTD_WRITEABLE, */
+ },
+ {
+ .name = "homefs",
+ .offset = MTDPART_OFS_APPEND,
+ .size = MTDPART_SIZ_FULL,
+ .mask_flags = 0,
+ },
+};
+
+static struct davinci_nand_pdata mityomapl138_nandflash_data = {
+ .core_chipsel = 1,
+ .parts = mityomapl138_nandflash_partition,
+ .nr_parts = ARRAY_SIZE(mityomapl138_nandflash_partition),
+ .engine_type = NAND_ECC_ENGINE_TYPE_ON_HOST,
+ .bbt_options = NAND_BBT_USE_FLASH,
+ .options = NAND_BUSWIDTH_16,
+ .ecc_bits = 1, /* 4 bit mode is not supported with 16 bit NAND */
+};
+
+static struct resource mityomapl138_nandflash_resource[] = {
+ {
+ .start = DA8XX_AEMIF_CS3_BASE,
+ .end = DA8XX_AEMIF_CS3_BASE + SZ_512K + 2 * SZ_1K - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ .start = DA8XX_AEMIF_CTL_BASE,
+ .end = DA8XX_AEMIF_CTL_BASE + SZ_32K - 1,
+ .flags = IORESOURCE_MEM,
+ },
+};
+
+static struct platform_device mityomapl138_aemif_devices[] = {
+ {
+ .name = "davinci_nand",
+ .id = 1,
+ .dev = {
+ .platform_data = &mityomapl138_nandflash_data,
+ },
+ .num_resources = ARRAY_SIZE(mityomapl138_nandflash_resource),
+ .resource = mityomapl138_nandflash_resource,
+ },
+};
+
+static struct resource mityomapl138_aemif_resources[] = {
+ {
+ .start = DA8XX_AEMIF_CTL_BASE,
+ .end = DA8XX_AEMIF_CTL_BASE + SZ_32K - 1,
+ .flags = IORESOURCE_MEM,
+ },
+};
+
+static struct aemif_abus_data mityomapl138_aemif_abus_data[] = {
+ {
+ .cs = 1,
+ },
+};
+
+static struct aemif_platform_data mityomapl138_aemif_pdata = {
+ .abus_data = mityomapl138_aemif_abus_data,
+ .num_abus_data = ARRAY_SIZE(mityomapl138_aemif_abus_data),
+ .sub_devices = mityomapl138_aemif_devices,
+ .num_sub_devices = ARRAY_SIZE(mityomapl138_aemif_devices),
+};
+
+static struct platform_device mityomapl138_aemif_device = {
+ .name = "ti-aemif",
+ .id = -1,
+ .dev = {
+ .platform_data = &mityomapl138_aemif_pdata,
+ },
+ .resource = mityomapl138_aemif_resources,
+ .num_resources = ARRAY_SIZE(mityomapl138_aemif_resources),
+};
+
+static void __init mityomapl138_setup_nand(void)
+{
+ if (platform_device_register(&mityomapl138_aemif_device))
+ pr_warn("%s: Cannot register AEMIF device\n", __func__);
+}
+
+static const short mityomap_mii_pins[] = {
+ DA850_MII_TXEN, DA850_MII_TXCLK, DA850_MII_COL, DA850_MII_TXD_3,
+ DA850_MII_TXD_2, DA850_MII_TXD_1, DA850_MII_TXD_0, DA850_MII_RXER,
+ DA850_MII_CRS, DA850_MII_RXCLK, DA850_MII_RXDV, DA850_MII_RXD_3,
+ DA850_MII_RXD_2, DA850_MII_RXD_1, DA850_MII_RXD_0, DA850_MDIO_CLK,
+ DA850_MDIO_D,
+ -1
+};
+
+static const short mityomap_rmii_pins[] = {
+ DA850_RMII_TXD_0, DA850_RMII_TXD_1, DA850_RMII_TXEN,
+ DA850_RMII_CRS_DV, DA850_RMII_RXD_0, DA850_RMII_RXD_1,
+ DA850_RMII_RXER, DA850_RMII_MHZ_50_CLK, DA850_MDIO_CLK,
+ DA850_MDIO_D,
+ -1
+};
+
+static void __init mityomapl138_config_emac(void)
+{
+ void __iomem *cfg_chip3_base;
+ int ret;
+ u32 val;
+ struct davinci_soc_info *soc_info = &davinci_soc_info;
+
+ soc_info->emac_pdata->rmii_en = 0; /* hardcoded for now */
+
+ cfg_chip3_base = DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP3_REG);
+ val = __raw_readl(cfg_chip3_base);
+
+ if (soc_info->emac_pdata->rmii_en) {
+ val |= BIT(8);
+ ret = davinci_cfg_reg_list(mityomap_rmii_pins);
+ pr_info("RMII PHY configured\n");
+ } else {
+ val &= ~BIT(8);
+ ret = davinci_cfg_reg_list(mityomap_mii_pins);
+ pr_info("MII PHY configured\n");
+ }
+
+ if (ret) {
+ pr_warn("mii/rmii mux setup failed: %d\n", ret);
+ return;
+ }
+
+ /* configure the CFGCHIP3 register for RMII or MII */
+ __raw_writel(val, cfg_chip3_base);
+
+ soc_info->emac_pdata->phy_id = MITYOMAPL138_PHY_ID;
+
+ ret = da8xx_register_emac();
+ if (ret)
+ pr_warn("emac registration failed: %d\n", ret);
+}
+
+static void __init mityomapl138_init(void)
+{
+ int ret;
+
+ da850_register_clocks();
+
+ /* for now, no special EDMA channels are reserved */
+ ret = da850_register_edma(NULL);
+ if (ret)
+ pr_warn("edma registration failed: %d\n", ret);
+
+ ret = da8xx_register_watchdog();
+ if (ret)
+ pr_warn("watchdog registration failed: %d\n", ret);
+
+ davinci_serial_init(da8xx_serial_device);
+
+ nvmem_register_notifier(&mityomapl138_nvmem_notifier);
+ nvmem_add_cell_table(&mityomapl138_nvmem_cell_table);
+ nvmem_add_cell_lookups(&mityomapl138_nvmem_cell_lookup, 1);
+
+ ret = da8xx_register_i2c(0, &mityomap_i2c_0_pdata);
+ if (ret)
+ pr_warn("i2c0 registration failed: %d\n", ret);
+
+ ret = pmic_tps65023_init();
+ if (ret)
+ pr_warn("TPS65023 PMIC init failed: %d\n", ret);
+
+ mityomapl138_setup_nand();
+
+ ret = spi_register_board_info(mityomapl138_spi_flash_info,
+ ARRAY_SIZE(mityomapl138_spi_flash_info));
+ if (ret)
+ pr_warn("spi info registration failed: %d\n", ret);
+
+ ret = da8xx_register_spi_bus(1,
+ ARRAY_SIZE(mityomapl138_spi_flash_info));
+ if (ret)
+ pr_warn("spi 1 registration failed: %d\n", ret);
+
+ mityomapl138_config_emac();
+
+ ret = da8xx_register_rtc();
+ if (ret)
+ pr_warn("rtc setup failed: %d\n", ret);
+
+ ret = da8xx_register_cpuidle();
+ if (ret)
+ pr_warn("cpuidle registration failed: %d\n", ret);
+
+ davinci_pm_init();
+}
+
+#ifdef CONFIG_SERIAL_8250_CONSOLE
+static int __init mityomapl138_console_init(void)
+{
+ if (!machine_is_mityomapl138())
+ return 0;
+
+ return add_preferred_console("ttyS", 1, "115200");
+}
+console_initcall(mityomapl138_console_init);
+#endif
+
+static void __init mityomapl138_map_io(void)
+{
+ da850_init();
+}
+
+MACHINE_START(MITYOMAPL138, "MityDSP-L138/MityARM-1808")
+ .atag_offset = 0x100,
+ .map_io = mityomapl138_map_io,
+ .init_irq = da850_init_irq,
+ .init_time = da850_init_time,
+ .init_machine = mityomapl138_init,
+ .init_late = davinci_init_late,
+ .dma_zone_size = SZ_128M,
+MACHINE_END
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