| /* |
| * ATSTK1002/ATSTK1006 daughterboard-specific init code |
| * |
| * Copyright (C) 2005-2007 Atmel Corporation |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 as |
| * published by the Free Software Foundation. |
| */ |
| #include <linux/clk.h> |
| #include <linux/etherdevice.h> |
| #include <linux/init.h> |
| #include <linux/kernel.h> |
| #include <linux/platform_device.h> |
| #include <linux/string.h> |
| #include <linux/types.h> |
| #include <linux/spi/spi.h> |
| #include <linux/spi/at73c213.h> |
| |
| #include <video/atmel_lcdc.h> |
| |
| #include <asm/io.h> |
| #include <asm/setup.h> |
| #include <asm/atmel-mci.h> |
| |
| #include <asm/arch/at32ap700x.h> |
| #include <asm/arch/board.h> |
| #include <asm/arch/init.h> |
| #include <asm/arch/portmux.h> |
| |
| #include "atstk1000.h" |
| |
| /* Oscillator frequencies. These are board specific */ |
| unsigned long at32_board_osc_rates[3] = { |
| [0] = 32768, /* 32.768 kHz on RTC osc */ |
| [1] = 20000000, /* 20 MHz on osc0 */ |
| [2] = 12000000, /* 12 MHz on osc1 */ |
| }; |
| |
| /* |
| * The ATSTK1006 daughterboard is very similar to the ATSTK1002. Both |
| * have the AT32AP7000 chip on board; the difference is that the |
| * STK1006 has 128 MB SDRAM (the STK1002 uses the 8 MB SDRAM chip on |
| * the STK1000 motherboard) and 256 MB NAND flash (the STK1002 has |
| * none.) |
| * |
| * The RAM difference is handled by the boot loader, so the only |
| * difference we end up handling here is the NAND flash. |
| */ |
| #ifdef CONFIG_BOARD_ATSTK1006 |
| #include <linux/mtd/partitions.h> |
| #include <asm/arch/smc.h> |
| |
| static struct smc_timing nand_timing __initdata = { |
| .ncs_read_setup = 0, |
| .nrd_setup = 10, |
| .ncs_write_setup = 0, |
| .nwe_setup = 10, |
| |
| .ncs_read_pulse = 30, |
| .nrd_pulse = 15, |
| .ncs_write_pulse = 30, |
| .nwe_pulse = 15, |
| |
| .read_cycle = 30, |
| .write_cycle = 30, |
| |
| .ncs_read_recover = 0, |
| .nrd_recover = 15, |
| .ncs_write_recover = 0, |
| /* WE# high -> RE# low min 60 ns */ |
| .nwe_recover = 50, |
| }; |
| |
| static struct smc_config nand_config __initdata = { |
| .bus_width = 1, |
| .nrd_controlled = 1, |
| .nwe_controlled = 1, |
| .nwait_mode = 0, |
| .byte_write = 0, |
| .tdf_cycles = 2, |
| .tdf_mode = 0, |
| }; |
| |
| static struct mtd_partition nand_partitions[] = { |
| { |
| .name = "main", |
| .offset = 0x00000000, |
| .size = MTDPART_SIZ_FULL, |
| }, |
| }; |
| |
| static struct mtd_partition *nand_part_info(int size, int *num_partitions) |
| { |
| *num_partitions = ARRAY_SIZE(nand_partitions); |
| return nand_partitions; |
| } |
| |
| struct atmel_nand_data atstk1006_nand_data __initdata = { |
| .cle = 21, |
| .ale = 22, |
| .rdy_pin = GPIO_PIN_PB(30), |
| .enable_pin = GPIO_PIN_PB(29), |
| .partition_info = nand_part_info, |
| }; |
| #endif |
| |
| struct eth_addr { |
| u8 addr[6]; |
| }; |
| |
| static struct eth_addr __initdata hw_addr[2]; |
| static struct eth_platform_data __initdata eth_data[2] = { |
| { |
| /* |
| * The MDIO pullups on STK1000 are a bit too weak for |
| * the autodetection to work properly, so we have to |
| * mask out everything but the correct address. |
| */ |
| .phy_mask = ~(1U << 16), |
| }, |
| { |
| .phy_mask = ~(1U << 17), |
| }, |
| }; |
| |
| #ifdef CONFIG_BOARD_ATSTK1000_EXTDAC |
| static struct at73c213_board_info at73c213_data = { |
| .ssc_id = 0, |
| .shortname = "AVR32 STK1000 external DAC", |
| }; |
| #endif |
| |
| #ifndef CONFIG_BOARD_ATSTK100X_SW1_CUSTOM |
| static struct spi_board_info spi0_board_info[] __initdata = { |
| #ifdef CONFIG_BOARD_ATSTK1000_EXTDAC |
| { |
| /* AT73C213 */ |
| .modalias = "at73c213", |
| .max_speed_hz = 200000, |
| .chip_select = 0, |
| .mode = SPI_MODE_1, |
| .platform_data = &at73c213_data, |
| }, |
| #endif |
| { |
| /* QVGA display */ |
| .modalias = "ltv350qv", |
| .max_speed_hz = 16000000, |
| .chip_select = 1, |
| .mode = SPI_MODE_3, |
| }, |
| }; |
| #endif |
| |
| #ifdef CONFIG_BOARD_ATSTK100X_SPI1 |
| static struct spi_board_info spi1_board_info[] __initdata = { { |
| /* patch in custom entries here */ |
| } }; |
| #endif |
| |
| /* |
| * The next two functions should go away as the boot loader is |
| * supposed to initialize the macb address registers with a valid |
| * ethernet address. But we need to keep it around for a while until |
| * we can be reasonably sure the boot loader does this. |
| * |
| * The phy_id is ignored as the driver will probe for it. |
| */ |
| static int __init parse_tag_ethernet(struct tag *tag) |
| { |
| int i; |
| |
| i = tag->u.ethernet.mac_index; |
| if (i < ARRAY_SIZE(hw_addr)) |
| memcpy(hw_addr[i].addr, tag->u.ethernet.hw_address, |
| sizeof(hw_addr[i].addr)); |
| |
| return 0; |
| } |
| __tagtable(ATAG_ETHERNET, parse_tag_ethernet); |
| |
| static void __init set_hw_addr(struct platform_device *pdev) |
| { |
| struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0); |
| const u8 *addr; |
| void __iomem *regs; |
| struct clk *pclk; |
| |
| if (!res) |
| return; |
| if (pdev->id >= ARRAY_SIZE(hw_addr)) |
| return; |
| |
| addr = hw_addr[pdev->id].addr; |
| if (!is_valid_ether_addr(addr)) |
| return; |
| |
| /* |
| * Since this is board-specific code, we'll cheat and use the |
| * physical address directly as we happen to know that it's |
| * the same as the virtual address. |
| */ |
| regs = (void __iomem __force *)res->start; |
| pclk = clk_get(&pdev->dev, "pclk"); |
| if (!pclk) |
| return; |
| |
| clk_enable(pclk); |
| __raw_writel((addr[3] << 24) | (addr[2] << 16) |
| | (addr[1] << 8) | addr[0], regs + 0x98); |
| __raw_writel((addr[5] << 8) | addr[4], regs + 0x9c); |
| clk_disable(pclk); |
| clk_put(pclk); |
| } |
| |
| #ifdef CONFIG_BOARD_ATSTK1000_EXTDAC |
| static void __init atstk1002_setup_extdac(void) |
| { |
| struct clk *gclk; |
| struct clk *pll; |
| |
| gclk = clk_get(NULL, "gclk0"); |
| if (IS_ERR(gclk)) |
| goto err_gclk; |
| pll = clk_get(NULL, "pll0"); |
| if (IS_ERR(pll)) |
| goto err_pll; |
| |
| if (clk_set_parent(gclk, pll)) { |
| pr_debug("STK1000: failed to set pll0 as parent for DAC clock\n"); |
| goto err_set_clk; |
| } |
| |
| at32_select_periph(GPIO_PIN_PA(30), GPIO_PERIPH_A, 0); |
| at73c213_data.dac_clk = gclk; |
| |
| err_set_clk: |
| clk_put(pll); |
| err_pll: |
| clk_put(gclk); |
| err_gclk: |
| return; |
| } |
| #else |
| static void __init atstk1002_setup_extdac(void) |
| { |
| |
| } |
| #endif /* CONFIG_BOARD_ATSTK1000_EXTDAC */ |
| |
| void __init setup_board(void) |
| { |
| #ifdef CONFIG_BOARD_ATSTK100X_SW2_CUSTOM |
| at32_map_usart(0, 1); /* USART 0/B: /dev/ttyS1, IRDA */ |
| #else |
| at32_map_usart(1, 0); /* USART 1/A: /dev/ttyS0, DB9 */ |
| #endif |
| /* USART 2/unused: expansion connector */ |
| at32_map_usart(3, 2); /* USART 3/C: /dev/ttyS2, DB9 */ |
| |
| at32_setup_serial_console(0); |
| } |
| |
| #ifndef CONFIG_BOARD_ATSTK100X_SW2_CUSTOM |
| |
| /* MMC card detect requires MACB0 *NOT* be used */ |
| #ifdef CONFIG_BOARD_ATSTK1002_SW6_CUSTOM |
| static struct mci_platform_data __initdata mci0_data = { |
| .detect_pin = GPIO_PIN_PC(14), /* gpio30/sdcd */ |
| .wp_pin = GPIO_PIN_PC(15), /* gpio31/sdwp */ |
| }; |
| #define MCI_PDATA &mci0_data |
| #else |
| #define MCI_PDATA NULL |
| #endif /* SW6 for sd{cd,wp} routing */ |
| |
| #endif /* SW2 for MMC signal routing */ |
| |
| static int __init atstk1002_init(void) |
| { |
| /* |
| * ATSTK1000 uses 32-bit SDRAM interface. Reserve the |
| * SDRAM-specific pins so that nobody messes with them. |
| */ |
| at32_reserve_pin(GPIO_PIN_PE(0)); /* DATA[16] */ |
| at32_reserve_pin(GPIO_PIN_PE(1)); /* DATA[17] */ |
| at32_reserve_pin(GPIO_PIN_PE(2)); /* DATA[18] */ |
| at32_reserve_pin(GPIO_PIN_PE(3)); /* DATA[19] */ |
| at32_reserve_pin(GPIO_PIN_PE(4)); /* DATA[20] */ |
| at32_reserve_pin(GPIO_PIN_PE(5)); /* DATA[21] */ |
| at32_reserve_pin(GPIO_PIN_PE(6)); /* DATA[22] */ |
| at32_reserve_pin(GPIO_PIN_PE(7)); /* DATA[23] */ |
| at32_reserve_pin(GPIO_PIN_PE(8)); /* DATA[24] */ |
| at32_reserve_pin(GPIO_PIN_PE(9)); /* DATA[25] */ |
| at32_reserve_pin(GPIO_PIN_PE(10)); /* DATA[26] */ |
| at32_reserve_pin(GPIO_PIN_PE(11)); /* DATA[27] */ |
| at32_reserve_pin(GPIO_PIN_PE(12)); /* DATA[28] */ |
| at32_reserve_pin(GPIO_PIN_PE(13)); /* DATA[29] */ |
| at32_reserve_pin(GPIO_PIN_PE(14)); /* DATA[30] */ |
| at32_reserve_pin(GPIO_PIN_PE(15)); /* DATA[31] */ |
| at32_reserve_pin(GPIO_PIN_PE(26)); /* SDCS */ |
| |
| at32_add_system_devices(); |
| |
| #ifdef CONFIG_BOARD_ATSTK1006 |
| smc_set_timing(&nand_config, &nand_timing); |
| smc_set_configuration(3, &nand_config); |
| at32_add_device_nand(0, &atstk1006_nand_data); |
| #endif |
| |
| #ifdef CONFIG_BOARD_ATSTK100X_SW2_CUSTOM |
| at32_add_device_usart(1); |
| #else |
| at32_add_device_usart(0); |
| #endif |
| at32_add_device_usart(2); |
| |
| #ifndef CONFIG_BOARD_ATSTK1002_SW6_CUSTOM |
| set_hw_addr(at32_add_device_eth(0, ð_data[0])); |
| #endif |
| #ifndef CONFIG_BOARD_ATSTK100X_SW1_CUSTOM |
| at32_add_device_spi(0, spi0_board_info, ARRAY_SIZE(spi0_board_info)); |
| #endif |
| #ifdef CONFIG_BOARD_ATSTK100X_SPI1 |
| at32_add_device_spi(1, spi1_board_info, ARRAY_SIZE(spi1_board_info)); |
| #endif |
| #ifndef CONFIG_BOARD_ATSTK1002_SW2_CUSTOM |
| at32_add_device_mci(0, MCI_PDATA); |
| #endif |
| #ifdef CONFIG_BOARD_ATSTK1002_SW5_CUSTOM |
| set_hw_addr(at32_add_device_eth(1, ð_data[1])); |
| #else |
| at32_add_device_lcdc(0, &atstk1000_lcdc_data, |
| fbmem_start, fbmem_size, 0); |
| #endif |
| at32_add_device_usba(0, NULL); |
| #ifndef CONFIG_BOARD_ATSTK100X_SW3_CUSTOM |
| at32_add_device_ssc(0, ATMEL_SSC_TX); |
| #endif |
| |
| atstk1000_setup_j2_leds(); |
| atstk1002_setup_extdac(); |
| |
| return 0; |
| } |
| postcore_initcall(atstk1002_init); |