| /* |
| * device.c -- common ColdFire SoC device support |
| * |
| * (C) Copyright 2011, Greg Ungerer <gerg@uclinux.org> |
| * |
| * This file is subject to the terms and conditions of the GNU General Public |
| * License. See the file COPYING in the main directory of this archive |
| * for more details. |
| */ |
| |
| #include <linux/kernel.h> |
| #include <linux/init.h> |
| #include <linux/io.h> |
| #include <linux/spi/spi.h> |
| #include <linux/gpio.h> |
| #include <linux/fec.h> |
| #include <asm/traps.h> |
| #include <asm/coldfire.h> |
| #include <asm/mcfsim.h> |
| #include <asm/mcfuart.h> |
| #include <asm/mcfqspi.h> |
| |
| /* |
| * All current ColdFire parts contain from 2, 3, 4 or 10 UARTS. |
| */ |
| static struct mcf_platform_uart mcf_uart_platform_data[] = { |
| { |
| .mapbase = MCFUART_BASE0, |
| .irq = MCF_IRQ_UART0, |
| }, |
| { |
| .mapbase = MCFUART_BASE1, |
| .irq = MCF_IRQ_UART1, |
| }, |
| #ifdef MCFUART_BASE2 |
| { |
| .mapbase = MCFUART_BASE2, |
| .irq = MCF_IRQ_UART2, |
| }, |
| #endif |
| #ifdef MCFUART_BASE3 |
| { |
| .mapbase = MCFUART_BASE3, |
| .irq = MCF_IRQ_UART3, |
| }, |
| #endif |
| #ifdef MCFUART_BASE4 |
| { |
| .mapbase = MCFUART_BASE4, |
| .irq = MCF_IRQ_UART4, |
| }, |
| #endif |
| #ifdef MCFUART_BASE5 |
| { |
| .mapbase = MCFUART_BASE5, |
| .irq = MCF_IRQ_UART5, |
| }, |
| #endif |
| #ifdef MCFUART_BASE6 |
| { |
| .mapbase = MCFUART_BASE6, |
| .irq = MCF_IRQ_UART6, |
| }, |
| #endif |
| #ifdef MCFUART_BASE7 |
| { |
| .mapbase = MCFUART_BASE7, |
| .irq = MCF_IRQ_UART7, |
| }, |
| #endif |
| #ifdef MCFUART_BASE8 |
| { |
| .mapbase = MCFUART_BASE8, |
| .irq = MCF_IRQ_UART8, |
| }, |
| #endif |
| #ifdef MCFUART_BASE9 |
| { |
| .mapbase = MCFUART_BASE9, |
| .irq = MCF_IRQ_UART9, |
| }, |
| #endif |
| { }, |
| }; |
| |
| static struct platform_device mcf_uart = { |
| .name = "mcfuart", |
| .id = 0, |
| .dev.platform_data = mcf_uart_platform_data, |
| }; |
| |
| #if IS_ENABLED(CONFIG_FEC) |
| |
| #ifdef CONFIG_M5441x |
| #define FEC_NAME "enet-fec" |
| static struct fec_platform_data fec_pdata = { |
| .phy = PHY_INTERFACE_MODE_RMII, |
| }; |
| #define FEC_PDATA (&fec_pdata) |
| #else |
| #define FEC_NAME "fec" |
| #define FEC_PDATA NULL |
| #endif |
| |
| /* |
| * Some ColdFire cores contain the Fast Ethernet Controller (FEC) |
| * block. It is Freescale's own hardware block. Some ColdFires |
| * have 2 of these. |
| */ |
| static struct resource mcf_fec0_resources[] = { |
| { |
| .start = MCFFEC_BASE0, |
| .end = MCFFEC_BASE0 + MCFFEC_SIZE0 - 1, |
| .flags = IORESOURCE_MEM, |
| }, |
| { |
| .start = MCF_IRQ_FECRX0, |
| .end = MCF_IRQ_FECRX0, |
| .flags = IORESOURCE_IRQ, |
| }, |
| { |
| .start = MCF_IRQ_FECTX0, |
| .end = MCF_IRQ_FECTX0, |
| .flags = IORESOURCE_IRQ, |
| }, |
| { |
| .start = MCF_IRQ_FECENTC0, |
| .end = MCF_IRQ_FECENTC0, |
| .flags = IORESOURCE_IRQ, |
| }, |
| }; |
| |
| static struct platform_device mcf_fec0 = { |
| .name = FEC_NAME, |
| .id = 0, |
| .num_resources = ARRAY_SIZE(mcf_fec0_resources), |
| .resource = mcf_fec0_resources, |
| .dev = { |
| .dma_mask = &mcf_fec0.dev.coherent_dma_mask, |
| .coherent_dma_mask = DMA_BIT_MASK(32), |
| .platform_data = FEC_PDATA, |
| } |
| }; |
| |
| #ifdef MCFFEC_BASE1 |
| static struct resource mcf_fec1_resources[] = { |
| { |
| .start = MCFFEC_BASE1, |
| .end = MCFFEC_BASE1 + MCFFEC_SIZE1 - 1, |
| .flags = IORESOURCE_MEM, |
| }, |
| { |
| .start = MCF_IRQ_FECRX1, |
| .end = MCF_IRQ_FECRX1, |
| .flags = IORESOURCE_IRQ, |
| }, |
| { |
| .start = MCF_IRQ_FECTX1, |
| .end = MCF_IRQ_FECTX1, |
| .flags = IORESOURCE_IRQ, |
| }, |
| { |
| .start = MCF_IRQ_FECENTC1, |
| .end = MCF_IRQ_FECENTC1, |
| .flags = IORESOURCE_IRQ, |
| }, |
| }; |
| |
| static struct platform_device mcf_fec1 = { |
| .name = FEC_NAME, |
| .id = 1, |
| .num_resources = ARRAY_SIZE(mcf_fec1_resources), |
| .resource = mcf_fec1_resources, |
| .dev = { |
| .dma_mask = &mcf_fec1.dev.coherent_dma_mask, |
| .coherent_dma_mask = DMA_BIT_MASK(32), |
| .platform_data = FEC_PDATA, |
| } |
| }; |
| #endif /* MCFFEC_BASE1 */ |
| #endif /* CONFIG_FEC */ |
| |
| #if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) |
| /* |
| * The ColdFire QSPI module is an SPI protocol hardware block used |
| * on a number of different ColdFire CPUs. |
| */ |
| static struct resource mcf_qspi_resources[] = { |
| { |
| .start = MCFQSPI_BASE, |
| .end = MCFQSPI_BASE + MCFQSPI_SIZE - 1, |
| .flags = IORESOURCE_MEM, |
| }, |
| { |
| .start = MCF_IRQ_QSPI, |
| .end = MCF_IRQ_QSPI, |
| .flags = IORESOURCE_IRQ, |
| }, |
| }; |
| |
| static int mcf_cs_setup(struct mcfqspi_cs_control *cs_control) |
| { |
| int status; |
| |
| status = gpio_request(MCFQSPI_CS0, "MCFQSPI_CS0"); |
| if (status) { |
| pr_debug("gpio_request for MCFQSPI_CS0 failed\n"); |
| goto fail0; |
| } |
| status = gpio_direction_output(MCFQSPI_CS0, 1); |
| if (status) { |
| pr_debug("gpio_direction_output for MCFQSPI_CS0 failed\n"); |
| goto fail1; |
| } |
| |
| status = gpio_request(MCFQSPI_CS1, "MCFQSPI_CS1"); |
| if (status) { |
| pr_debug("gpio_request for MCFQSPI_CS1 failed\n"); |
| goto fail1; |
| } |
| status = gpio_direction_output(MCFQSPI_CS1, 1); |
| if (status) { |
| pr_debug("gpio_direction_output for MCFQSPI_CS1 failed\n"); |
| goto fail2; |
| } |
| |
| status = gpio_request(MCFQSPI_CS2, "MCFQSPI_CS2"); |
| if (status) { |
| pr_debug("gpio_request for MCFQSPI_CS2 failed\n"); |
| goto fail2; |
| } |
| status = gpio_direction_output(MCFQSPI_CS2, 1); |
| if (status) { |
| pr_debug("gpio_direction_output for MCFQSPI_CS2 failed\n"); |
| goto fail3; |
| } |
| |
| #ifdef MCFQSPI_CS3 |
| status = gpio_request(MCFQSPI_CS3, "MCFQSPI_CS3"); |
| if (status) { |
| pr_debug("gpio_request for MCFQSPI_CS3 failed\n"); |
| goto fail3; |
| } |
| status = gpio_direction_output(MCFQSPI_CS3, 1); |
| if (status) { |
| pr_debug("gpio_direction_output for MCFQSPI_CS3 failed\n"); |
| gpio_free(MCFQSPI_CS3); |
| goto fail3; |
| } |
| #endif |
| |
| return 0; |
| |
| fail3: |
| gpio_free(MCFQSPI_CS2); |
| fail2: |
| gpio_free(MCFQSPI_CS1); |
| fail1: |
| gpio_free(MCFQSPI_CS0); |
| fail0: |
| return status; |
| } |
| |
| static void mcf_cs_teardown(struct mcfqspi_cs_control *cs_control) |
| { |
| #ifdef MCFQSPI_CS3 |
| gpio_free(MCFQSPI_CS3); |
| #endif |
| gpio_free(MCFQSPI_CS2); |
| gpio_free(MCFQSPI_CS1); |
| gpio_free(MCFQSPI_CS0); |
| } |
| |
| static void mcf_cs_select(struct mcfqspi_cs_control *cs_control, |
| u8 chip_select, bool cs_high) |
| { |
| switch (chip_select) { |
| case 0: |
| gpio_set_value(MCFQSPI_CS0, cs_high); |
| break; |
| case 1: |
| gpio_set_value(MCFQSPI_CS1, cs_high); |
| break; |
| case 2: |
| gpio_set_value(MCFQSPI_CS2, cs_high); |
| break; |
| #ifdef MCFQSPI_CS3 |
| case 3: |
| gpio_set_value(MCFQSPI_CS3, cs_high); |
| break; |
| #endif |
| } |
| } |
| |
| static void mcf_cs_deselect(struct mcfqspi_cs_control *cs_control, |
| u8 chip_select, bool cs_high) |
| { |
| switch (chip_select) { |
| case 0: |
| gpio_set_value(MCFQSPI_CS0, !cs_high); |
| break; |
| case 1: |
| gpio_set_value(MCFQSPI_CS1, !cs_high); |
| break; |
| case 2: |
| gpio_set_value(MCFQSPI_CS2, !cs_high); |
| break; |
| #ifdef MCFQSPI_CS3 |
| case 3: |
| gpio_set_value(MCFQSPI_CS3, !cs_high); |
| break; |
| #endif |
| } |
| } |
| |
| static struct mcfqspi_cs_control mcf_cs_control = { |
| .setup = mcf_cs_setup, |
| .teardown = mcf_cs_teardown, |
| .select = mcf_cs_select, |
| .deselect = mcf_cs_deselect, |
| }; |
| |
| static struct mcfqspi_platform_data mcf_qspi_data = { |
| .bus_num = 0, |
| .num_chipselect = 4, |
| .cs_control = &mcf_cs_control, |
| }; |
| |
| static struct platform_device mcf_qspi = { |
| .name = "mcfqspi", |
| .id = 0, |
| .num_resources = ARRAY_SIZE(mcf_qspi_resources), |
| .resource = mcf_qspi_resources, |
| .dev.platform_data = &mcf_qspi_data, |
| }; |
| #endif /* IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) */ |
| |
| #if IS_ENABLED(CONFIG_I2C_IMX) |
| static struct resource mcf_i2c0_resources[] = { |
| { |
| .start = MCFI2C_BASE0, |
| .end = MCFI2C_BASE0 + MCFI2C_SIZE0 - 1, |
| .flags = IORESOURCE_MEM, |
| }, |
| { |
| .start = MCF_IRQ_I2C0, |
| .end = MCF_IRQ_I2C0, |
| .flags = IORESOURCE_IRQ, |
| }, |
| }; |
| |
| static struct platform_device mcf_i2c0 = { |
| .name = "imx1-i2c", |
| .id = 0, |
| .num_resources = ARRAY_SIZE(mcf_i2c0_resources), |
| .resource = mcf_i2c0_resources, |
| }; |
| #ifdef MCFI2C_BASE1 |
| |
| static struct resource mcf_i2c1_resources[] = { |
| { |
| .start = MCFI2C_BASE1, |
| .end = MCFI2C_BASE1 + MCFI2C_SIZE1 - 1, |
| .flags = IORESOURCE_MEM, |
| }, |
| { |
| .start = MCF_IRQ_I2C1, |
| .end = MCF_IRQ_I2C1, |
| .flags = IORESOURCE_IRQ, |
| }, |
| }; |
| |
| static struct platform_device mcf_i2c1 = { |
| .name = "imx1-i2c", |
| .id = 1, |
| .num_resources = ARRAY_SIZE(mcf_i2c1_resources), |
| .resource = mcf_i2c1_resources, |
| }; |
| |
| #endif /* MCFI2C_BASE1 */ |
| |
| #ifdef MCFI2C_BASE2 |
| |
| static struct resource mcf_i2c2_resources[] = { |
| { |
| .start = MCFI2C_BASE2, |
| .end = MCFI2C_BASE2 + MCFI2C_SIZE2 - 1, |
| .flags = IORESOURCE_MEM, |
| }, |
| { |
| .start = MCF_IRQ_I2C2, |
| .end = MCF_IRQ_I2C2, |
| .flags = IORESOURCE_IRQ, |
| }, |
| }; |
| |
| static struct platform_device mcf_i2c2 = { |
| .name = "imx1-i2c", |
| .id = 2, |
| .num_resources = ARRAY_SIZE(mcf_i2c2_resources), |
| .resource = mcf_i2c2_resources, |
| }; |
| |
| #endif /* MCFI2C_BASE2 */ |
| |
| #ifdef MCFI2C_BASE3 |
| |
| static struct resource mcf_i2c3_resources[] = { |
| { |
| .start = MCFI2C_BASE3, |
| .end = MCFI2C_BASE3 + MCFI2C_SIZE3 - 1, |
| .flags = IORESOURCE_MEM, |
| }, |
| { |
| .start = MCF_IRQ_I2C3, |
| .end = MCF_IRQ_I2C3, |
| .flags = IORESOURCE_IRQ, |
| }, |
| }; |
| |
| static struct platform_device mcf_i2c3 = { |
| .name = "imx1-i2c", |
| .id = 3, |
| .num_resources = ARRAY_SIZE(mcf_i2c3_resources), |
| .resource = mcf_i2c3_resources, |
| }; |
| |
| #endif /* MCFI2C_BASE3 */ |
| |
| #ifdef MCFI2C_BASE4 |
| |
| static struct resource mcf_i2c4_resources[] = { |
| { |
| .start = MCFI2C_BASE4, |
| .end = MCFI2C_BASE4 + MCFI2C_SIZE4 - 1, |
| .flags = IORESOURCE_MEM, |
| }, |
| { |
| .start = MCF_IRQ_I2C4, |
| .end = MCF_IRQ_I2C4, |
| .flags = IORESOURCE_IRQ, |
| }, |
| }; |
| |
| static struct platform_device mcf_i2c4 = { |
| .name = "imx1-i2c", |
| .id = 4, |
| .num_resources = ARRAY_SIZE(mcf_i2c4_resources), |
| .resource = mcf_i2c4_resources, |
| }; |
| |
| #endif /* MCFI2C_BASE4 */ |
| |
| #ifdef MCFI2C_BASE5 |
| |
| static struct resource mcf_i2c5_resources[] = { |
| { |
| .start = MCFI2C_BASE5, |
| .end = MCFI2C_BASE5 + MCFI2C_SIZE5 - 1, |
| .flags = IORESOURCE_MEM, |
| }, |
| { |
| .start = MCF_IRQ_I2C5, |
| .end = MCF_IRQ_I2C5, |
| .flags = IORESOURCE_IRQ, |
| }, |
| }; |
| |
| static struct platform_device mcf_i2c5 = { |
| .name = "imx1-i2c", |
| .id = 5, |
| .num_resources = ARRAY_SIZE(mcf_i2c5_resources), |
| .resource = mcf_i2c5_resources, |
| }; |
| |
| #endif /* MCFI2C_BASE5 */ |
| #endif /* IS_ENABLED(CONFIG_I2C_IMX) */ |
| |
| static struct platform_device *mcf_devices[] __initdata = { |
| &mcf_uart, |
| #if IS_ENABLED(CONFIG_FEC) |
| &mcf_fec0, |
| #ifdef MCFFEC_BASE1 |
| &mcf_fec1, |
| #endif |
| #endif |
| #if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) |
| &mcf_qspi, |
| #endif |
| #if IS_ENABLED(CONFIG_I2C_IMX) |
| &mcf_i2c0, |
| #ifdef MCFI2C_BASE1 |
| &mcf_i2c1, |
| #endif |
| #ifdef MCFI2C_BASE2 |
| &mcf_i2c2, |
| #endif |
| #ifdef MCFI2C_BASE3 |
| &mcf_i2c3, |
| #endif |
| #ifdef MCFI2C_BASE4 |
| &mcf_i2c4, |
| #endif |
| #ifdef MCFI2C_BASE5 |
| &mcf_i2c5, |
| #endif |
| #endif |
| }; |
| |
| /* |
| * Some ColdFire UARTs let you set the IRQ line to use. |
| */ |
| static void __init mcf_uart_set_irq(void) |
| { |
| #ifdef MCFUART_UIVR |
| /* UART0 interrupt setup */ |
| writeb(MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI1, MCFSIM_UART1ICR); |
| writeb(MCF_IRQ_UART0, MCFUART_BASE0 + MCFUART_UIVR); |
| mcf_mapirq2imr(MCF_IRQ_UART0, MCFINTC_UART0); |
| |
| /* UART1 interrupt setup */ |
| writeb(MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI2, MCFSIM_UART2ICR); |
| writeb(MCF_IRQ_UART1, MCFUART_BASE1 + MCFUART_UIVR); |
| mcf_mapirq2imr(MCF_IRQ_UART1, MCFINTC_UART1); |
| #endif |
| } |
| |
| static int __init mcf_init_devices(void) |
| { |
| mcf_uart_set_irq(); |
| platform_add_devices(mcf_devices, ARRAY_SIZE(mcf_devices)); |
| return 0; |
| } |
| |
| arch_initcall(mcf_init_devices); |
| |