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182 lines
4.2 KiB
182 lines
4.2 KiB
// SPDX-License-Identifier: GPL-2.0 |
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/* |
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* ALPHAPROJECT AP-SH4A-3A Support. |
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* |
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* Copyright (C) 2010 ALPHAPROJECT Co.,Ltd. |
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* Copyright (C) 2008 Yoshihiro Shimoda |
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* Copyright (C) 2009 Paul Mundt |
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*/ |
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#include <linux/init.h> |
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#include <linux/platform_device.h> |
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#include <linux/io.h> |
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#include <linux/mtd/physmap.h> |
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#include <linux/regulator/fixed.h> |
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#include <linux/regulator/machine.h> |
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#include <linux/smsc911x.h> |
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#include <linux/irq.h> |
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#include <linux/clk.h> |
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#include <asm/machvec.h> |
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#include <linux/sizes.h> |
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#include <asm/clock.h> |
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static struct mtd_partition nor_flash_partitions[] = { |
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{ |
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.name = "loader", |
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.offset = 0x00000000, |
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.size = 512 * 1024, |
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}, |
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{ |
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.name = "bootenv", |
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.offset = MTDPART_OFS_APPEND, |
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.size = 512 * 1024, |
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}, |
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{ |
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.name = "kernel", |
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.offset = MTDPART_OFS_APPEND, |
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.size = 4 * 1024 * 1024, |
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}, |
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{ |
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.name = "data", |
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.offset = MTDPART_OFS_APPEND, |
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.size = MTDPART_SIZ_FULL, |
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}, |
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}; |
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static struct physmap_flash_data nor_flash_data = { |
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.width = 4, |
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.parts = nor_flash_partitions, |
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.nr_parts = ARRAY_SIZE(nor_flash_partitions), |
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}; |
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static struct resource nor_flash_resources[] = { |
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[0] = { |
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.start = 0x00000000, |
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.end = 0x01000000 - 1, |
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.flags = IORESOURCE_MEM, |
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} |
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}; |
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static struct platform_device nor_flash_device = { |
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.name = "physmap-flash", |
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.dev = { |
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.platform_data = &nor_flash_data, |
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}, |
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.num_resources = ARRAY_SIZE(nor_flash_resources), |
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.resource = nor_flash_resources, |
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}; |
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/* Dummy supplies, where voltage doesn't matter */ |
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static struct regulator_consumer_supply dummy_supplies[] = { |
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REGULATOR_SUPPLY("vddvario", "smsc911x"), |
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REGULATOR_SUPPLY("vdd33a", "smsc911x"), |
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}; |
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static struct resource smsc911x_resources[] = { |
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[0] = { |
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.name = "smsc911x-memory", |
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.start = 0xA4000000, |
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.end = 0xA4000000 + SZ_256 - 1, |
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.flags = IORESOURCE_MEM, |
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}, |
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[1] = { |
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.name = "smsc911x-irq", |
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.start = evt2irq(0x200), |
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.end = evt2irq(0x200), |
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.flags = IORESOURCE_IRQ, |
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}, |
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}; |
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static struct smsc911x_platform_config smsc911x_config = { |
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.irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW, |
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.irq_type = SMSC911X_IRQ_TYPE_OPEN_DRAIN, |
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.flags = SMSC911X_USE_16BIT, |
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.phy_interface = PHY_INTERFACE_MODE_MII, |
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}; |
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static struct platform_device smsc911x_device = { |
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.name = "smsc911x", |
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.id = -1, |
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.num_resources = ARRAY_SIZE(smsc911x_resources), |
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.resource = smsc911x_resources, |
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.dev = { |
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.platform_data = &smsc911x_config, |
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}, |
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}; |
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static struct platform_device *apsh4a3a_devices[] __initdata = { |
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&nor_flash_device, |
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&smsc911x_device, |
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}; |
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static int __init apsh4a3a_devices_setup(void) |
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{ |
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regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies)); |
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return platform_add_devices(apsh4a3a_devices, |
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ARRAY_SIZE(apsh4a3a_devices)); |
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} |
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device_initcall(apsh4a3a_devices_setup); |
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static int apsh4a3a_clk_init(void) |
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{ |
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struct clk *clk; |
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int ret; |
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clk = clk_get(NULL, "extal"); |
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if (IS_ERR(clk)) |
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return PTR_ERR(clk); |
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ret = clk_set_rate(clk, 33333000); |
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clk_put(clk); |
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return ret; |
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} |
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/* Initialize the board */ |
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static void __init apsh4a3a_setup(char **cmdline_p) |
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{ |
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printk(KERN_INFO "Alpha Project AP-SH4A-3A support:\n"); |
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} |
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static void __init apsh4a3a_init_irq(void) |
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{ |
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plat_irq_setup_pins(IRQ_MODE_IRQ7654); |
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} |
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/* Return the board specific boot mode pin configuration */ |
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static int apsh4a3a_mode_pins(void) |
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{ |
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int value = 0; |
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/* These are the factory default settings of SW1 and SW2. |
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* If you change these dip switches then you will need to |
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* adjust the values below as well. |
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*/ |
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value &= ~MODE_PIN0; /* Clock Mode 16 */ |
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value &= ~MODE_PIN1; |
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value &= ~MODE_PIN2; |
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value &= ~MODE_PIN3; |
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value |= MODE_PIN4; |
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value &= ~MODE_PIN5; /* 16-bit Area0 bus width */ |
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value |= MODE_PIN6; /* Area 0 SRAM interface */ |
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value |= MODE_PIN7; |
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value |= MODE_PIN8; /* Little Endian */ |
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value |= MODE_PIN9; /* Master Mode */ |
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value |= MODE_PIN10; /* Crystal resonator */ |
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value |= MODE_PIN11; /* Display Unit */ |
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value |= MODE_PIN12; |
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value &= ~MODE_PIN13; /* 29-bit address mode */ |
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value |= MODE_PIN14; /* No PLL step-up */ |
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return value; |
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} |
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/* |
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* The Machine Vector |
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*/ |
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static struct sh_machine_vector mv_apsh4a3a __initmv = { |
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.mv_name = "AP-SH4A-3A", |
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.mv_setup = apsh4a3a_setup, |
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.mv_clk_init = apsh4a3a_clk_init, |
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.mv_init_irq = apsh4a3a_init_irq, |
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.mv_mode_pins = apsh4a3a_mode_pins, |
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};
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