linux/arch/arm/mach-spear3xx/spear3xx.c

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/*
* arch/arm/mach-spear3xx/spear3xx.c
*
* SPEAr3XX machines common source file
*
* Copyright (C) 2009 ST Microelectronics
* Viresh Kumar<viresh.kumar@st.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.
*/
#include <linux/types.h>
#include <linux/amba/pl061.h>
#include <linux/ptrace.h>
#include <linux/io.h>
#include <asm/hardware/vic.h>
#include <asm/irq.h>
#include <asm/mach/arch.h>
#include <mach/generic.h>
#include <mach/spear.h>
/* Add spear3xx machines common devices here */
/* gpio device registration */
static struct pl061_platform_data gpio_plat_data = {
.gpio_base = 0,
.irq_base = SPEAR_GPIO_INT_BASE,
};
struct amba_device gpio_device = {
.dev = {
.init_name = "gpio",
.platform_data = &gpio_plat_data,
},
.res = {
.start = SPEAR3XX_ICM3_GPIO_BASE,
.end = SPEAR3XX_ICM3_GPIO_BASE + SPEAR3XX_ICM3_GPIO_SIZE - 1,
.flags = IORESOURCE_MEM,
},
.irq = {IRQ_BASIC_GPIO, NO_IRQ},
};
/* uart device registration */
struct amba_device uart_device = {
.dev = {
.init_name = "uart",
},
.res = {
.start = SPEAR3XX_ICM1_UART_BASE,
.end = SPEAR3XX_ICM1_UART_BASE + SPEAR3XX_ICM1_UART_SIZE - 1,
.flags = IORESOURCE_MEM,
},
.irq = {IRQ_UART, NO_IRQ},
};
/* Do spear3xx familiy common initialization part here */
void __init spear3xx_init(void)
{
/* nothing to do for now */
}
/* This will initialize vic */
void __init spear3xx_init_irq(void)
{
vic_init((void __iomem *)VA_SPEAR3XX_ML1_VIC_BASE, 0, ~0, 0);
}
/* Following will create static virtual/physical mappings */
struct map_desc spear3xx_io_desc[] __initdata = {
{
.virtual = VA_SPEAR3XX_ICM1_UART_BASE,
.pfn = __phys_to_pfn(SPEAR3XX_ICM1_UART_BASE),
.length = SPEAR3XX_ICM1_UART_SIZE,
.type = MT_DEVICE
}, {
.virtual = VA_SPEAR3XX_ML1_VIC_BASE,
.pfn = __phys_to_pfn(SPEAR3XX_ML1_VIC_BASE),
.length = SPEAR3XX_ML1_VIC_SIZE,
.type = MT_DEVICE
}, {
.virtual = VA_SPEAR3XX_ICM3_SYS_CTRL_BASE,
.pfn = __phys_to_pfn(SPEAR3XX_ICM3_SYS_CTRL_BASE),
.length = SPEAR3XX_ICM3_SYS_CTRL_SIZE,
.type = MT_DEVICE
}, {
.virtual = VA_SPEAR3XX_ICM3_MISC_REG_BASE,
.pfn = __phys_to_pfn(SPEAR3XX_ICM3_MISC_REG_BASE),
.length = SPEAR3XX_ICM3_MISC_REG_SIZE,
.type = MT_DEVICE
},
};
/* This will create static memory mapping for selected devices */
void __init spear3xx_map_io(void)
{
iotable_init(spear3xx_io_desc, ARRAY_SIZE(spear3xx_io_desc));
/* This will initialize clock framework */
clk_init();
}
/* pad multiplexing support */
/* devices */
struct pmx_dev_mode pmx_firda_modes[] = {
{
.ids = 0xffffffff,
.mask = PMX_FIRDA_MASK,
},
};
struct pmx_dev pmx_firda = {
.name = "firda",
.modes = pmx_firda_modes,
.mode_count = ARRAY_SIZE(pmx_firda_modes),
.enb_on_reset = 0,
};
struct pmx_dev_mode pmx_i2c_modes[] = {
{
.ids = 0xffffffff,
.mask = PMX_I2C_MASK,
},
};
struct pmx_dev pmx_i2c = {
.name = "i2c",
.modes = pmx_i2c_modes,
.mode_count = ARRAY_SIZE(pmx_i2c_modes),
.enb_on_reset = 0,
};
struct pmx_dev_mode pmx_ssp_cs_modes[] = {
{
.ids = 0xffffffff,
.mask = PMX_SSP_CS_MASK,
},
};
struct pmx_dev pmx_ssp_cs = {
.name = "ssp_chip_selects",
.modes = pmx_ssp_cs_modes,
.mode_count = ARRAY_SIZE(pmx_ssp_cs_modes),
.enb_on_reset = 0,
};
struct pmx_dev_mode pmx_ssp_modes[] = {
{
.ids = 0xffffffff,
.mask = PMX_SSP_MASK,
},
};
struct pmx_dev pmx_ssp = {
.name = "ssp",
.modes = pmx_ssp_modes,
.mode_count = ARRAY_SIZE(pmx_ssp_modes),
.enb_on_reset = 0,
};
struct pmx_dev_mode pmx_mii_modes[] = {
{
.ids = 0xffffffff,
.mask = PMX_MII_MASK,
},
};
struct pmx_dev pmx_mii = {
.name = "mii",
.modes = pmx_mii_modes,
.mode_count = ARRAY_SIZE(pmx_mii_modes),
.enb_on_reset = 0,
};
struct pmx_dev_mode pmx_gpio_pin0_modes[] = {
{
.ids = 0xffffffff,
.mask = PMX_GPIO_PIN0_MASK,
},
};
struct pmx_dev pmx_gpio_pin0 = {
.name = "gpio_pin0",
.modes = pmx_gpio_pin0_modes,
.mode_count = ARRAY_SIZE(pmx_gpio_pin0_modes),
.enb_on_reset = 0,
};
struct pmx_dev_mode pmx_gpio_pin1_modes[] = {
{
.ids = 0xffffffff,
.mask = PMX_GPIO_PIN1_MASK,
},
};
struct pmx_dev pmx_gpio_pin1 = {
.name = "gpio_pin1",
.modes = pmx_gpio_pin1_modes,
.mode_count = ARRAY_SIZE(pmx_gpio_pin1_modes),
.enb_on_reset = 0,
};
struct pmx_dev_mode pmx_gpio_pin2_modes[] = {
{
.ids = 0xffffffff,
.mask = PMX_GPIO_PIN2_MASK,
},
};
struct pmx_dev pmx_gpio_pin2 = {
.name = "gpio_pin2",
.modes = pmx_gpio_pin2_modes,
.mode_count = ARRAY_SIZE(pmx_gpio_pin2_modes),
.enb_on_reset = 0,
};
struct pmx_dev_mode pmx_gpio_pin3_modes[] = {
{
.ids = 0xffffffff,
.mask = PMX_GPIO_PIN3_MASK,
},
};
struct pmx_dev pmx_gpio_pin3 = {
.name = "gpio_pin3",
.modes = pmx_gpio_pin3_modes,
.mode_count = ARRAY_SIZE(pmx_gpio_pin3_modes),
.enb_on_reset = 0,
};
struct pmx_dev_mode pmx_gpio_pin4_modes[] = {
{
.ids = 0xffffffff,
.mask = PMX_GPIO_PIN4_MASK,
},
};
struct pmx_dev pmx_gpio_pin4 = {
.name = "gpio_pin4",
.modes = pmx_gpio_pin4_modes,
.mode_count = ARRAY_SIZE(pmx_gpio_pin4_modes),
.enb_on_reset = 0,
};
struct pmx_dev_mode pmx_gpio_pin5_modes[] = {
{
.ids = 0xffffffff,
.mask = PMX_GPIO_PIN5_MASK,
},
};
struct pmx_dev pmx_gpio_pin5 = {
.name = "gpio_pin5",
.modes = pmx_gpio_pin5_modes,
.mode_count = ARRAY_SIZE(pmx_gpio_pin5_modes),
.enb_on_reset = 0,
};
struct pmx_dev_mode pmx_uart0_modem_modes[] = {
{
.ids = 0xffffffff,
.mask = PMX_UART0_MODEM_MASK,
},
};
struct pmx_dev pmx_uart0_modem = {
.name = "uart0_modem",
.modes = pmx_uart0_modem_modes,
.mode_count = ARRAY_SIZE(pmx_uart0_modem_modes),
.enb_on_reset = 0,
};
struct pmx_dev_mode pmx_uart0_modes[] = {
{
.ids = 0xffffffff,
.mask = PMX_UART0_MASK,
},
};
struct pmx_dev pmx_uart0 = {
.name = "uart0",
.modes = pmx_uart0_modes,
.mode_count = ARRAY_SIZE(pmx_uart0_modes),
.enb_on_reset = 0,
};
struct pmx_dev_mode pmx_timer_3_4_modes[] = {
{
.ids = 0xffffffff,
.mask = PMX_TIMER_3_4_MASK,
},
};
struct pmx_dev pmx_timer_3_4 = {
.name = "timer_3_4",
.modes = pmx_timer_3_4_modes,
.mode_count = ARRAY_SIZE(pmx_timer_3_4_modes),
.enb_on_reset = 0,
};
struct pmx_dev_mode pmx_timer_1_2_modes[] = {
{
.ids = 0xffffffff,
.mask = PMX_TIMER_1_2_MASK,
},
};
struct pmx_dev pmx_timer_1_2 = {
.name = "timer_1_2",
.modes = pmx_timer_1_2_modes,
.mode_count = ARRAY_SIZE(pmx_timer_1_2_modes),
.enb_on_reset = 0,
};
#if defined(CONFIG_MACH_SPEAR310) || defined(CONFIG_MACH_SPEAR320)
/* plgpios devices */
struct pmx_dev_mode pmx_plgpio_0_1_modes[] = {
{
.ids = 0x00,
.mask = PMX_FIRDA_MASK,
},
};
struct pmx_dev pmx_plgpio_0_1 = {
.name = "plgpio 0 and 1",
.modes = pmx_plgpio_0_1_modes,
.mode_count = ARRAY_SIZE(pmx_plgpio_0_1_modes),
.enb_on_reset = 1,
};
struct pmx_dev_mode pmx_plgpio_2_3_modes[] = {
{
.ids = 0x00,
.mask = PMX_UART0_MASK,
},
};
struct pmx_dev pmx_plgpio_2_3 = {
.name = "plgpio 2 and 3",
.modes = pmx_plgpio_2_3_modes,
.mode_count = ARRAY_SIZE(pmx_plgpio_2_3_modes),
.enb_on_reset = 1,
};
struct pmx_dev_mode pmx_plgpio_4_5_modes[] = {
{
.ids = 0x00,
.mask = PMX_I2C_MASK,
},
};
struct pmx_dev pmx_plgpio_4_5 = {
.name = "plgpio 4 and 5",
.modes = pmx_plgpio_4_5_modes,
.mode_count = ARRAY_SIZE(pmx_plgpio_4_5_modes),
.enb_on_reset = 1,
};
struct pmx_dev_mode pmx_plgpio_6_9_modes[] = {
{
.ids = 0x00,
.mask = PMX_SSP_MASK,
},
};
struct pmx_dev pmx_plgpio_6_9 = {
.name = "plgpio 6 to 9",
.modes = pmx_plgpio_6_9_modes,
.mode_count = ARRAY_SIZE(pmx_plgpio_6_9_modes),
.enb_on_reset = 1,
};
struct pmx_dev_mode pmx_plgpio_10_27_modes[] = {
{
.ids = 0x00,
.mask = PMX_MII_MASK,
},
};
struct pmx_dev pmx_plgpio_10_27 = {
.name = "plgpio 10 to 27",
.modes = pmx_plgpio_10_27_modes,
.mode_count = ARRAY_SIZE(pmx_plgpio_10_27_modes),
.enb_on_reset = 1,
};
struct pmx_dev_mode pmx_plgpio_28_modes[] = {
{
.ids = 0x00,
.mask = PMX_GPIO_PIN0_MASK,
},
};
struct pmx_dev pmx_plgpio_28 = {
.name = "plgpio 28",
.modes = pmx_plgpio_28_modes,
.mode_count = ARRAY_SIZE(pmx_plgpio_28_modes),
.enb_on_reset = 1,
};
struct pmx_dev_mode pmx_plgpio_29_modes[] = {
{
.ids = 0x00,
.mask = PMX_GPIO_PIN1_MASK,
},
};
struct pmx_dev pmx_plgpio_29 = {
.name = "plgpio 29",
.modes = pmx_plgpio_29_modes,
.mode_count = ARRAY_SIZE(pmx_plgpio_29_modes),
.enb_on_reset = 1,
};
struct pmx_dev_mode pmx_plgpio_30_modes[] = {
{
.ids = 0x00,
.mask = PMX_GPIO_PIN2_MASK,
},
};
struct pmx_dev pmx_plgpio_30 = {
.name = "plgpio 30",
.modes = pmx_plgpio_30_modes,
.mode_count = ARRAY_SIZE(pmx_plgpio_30_modes),
.enb_on_reset = 1,
};
struct pmx_dev_mode pmx_plgpio_31_modes[] = {
{
.ids = 0x00,
.mask = PMX_GPIO_PIN3_MASK,
},
};
struct pmx_dev pmx_plgpio_31 = {
.name = "plgpio 31",
.modes = pmx_plgpio_31_modes,
.mode_count = ARRAY_SIZE(pmx_plgpio_31_modes),
.enb_on_reset = 1,
};
struct pmx_dev_mode pmx_plgpio_32_modes[] = {
{
.ids = 0x00,
.mask = PMX_GPIO_PIN4_MASK,
},
};
struct pmx_dev pmx_plgpio_32 = {
.name = "plgpio 32",
.modes = pmx_plgpio_32_modes,
.mode_count = ARRAY_SIZE(pmx_plgpio_32_modes),
.enb_on_reset = 1,
};
struct pmx_dev_mode pmx_plgpio_33_modes[] = {
{
.ids = 0x00,
.mask = PMX_GPIO_PIN5_MASK,
},
};
struct pmx_dev pmx_plgpio_33 = {
.name = "plgpio 33",
.modes = pmx_plgpio_33_modes,
.mode_count = ARRAY_SIZE(pmx_plgpio_33_modes),
.enb_on_reset = 1,
};
struct pmx_dev_mode pmx_plgpio_34_36_modes[] = {
{
.ids = 0x00,
.mask = PMX_SSP_CS_MASK,
},
};
struct pmx_dev pmx_plgpio_34_36 = {
.name = "plgpio 34 to 36",
.modes = pmx_plgpio_34_36_modes,
.mode_count = ARRAY_SIZE(pmx_plgpio_34_36_modes),
.enb_on_reset = 1,
};
struct pmx_dev_mode pmx_plgpio_37_42_modes[] = {
{
.ids = 0x00,
.mask = PMX_UART0_MODEM_MASK,
},
};
struct pmx_dev pmx_plgpio_37_42 = {
.name = "plgpio 37 to 42",
.modes = pmx_plgpio_37_42_modes,
.mode_count = ARRAY_SIZE(pmx_plgpio_37_42_modes),
.enb_on_reset = 1,
};
struct pmx_dev_mode pmx_plgpio_43_44_47_48_modes[] = {
{
.ids = 0x00,
.mask = PMX_TIMER_1_2_MASK,
},
};
struct pmx_dev pmx_plgpio_43_44_47_48 = {
.name = "plgpio 43, 44, 47 and 48",
.modes = pmx_plgpio_43_44_47_48_modes,
.mode_count = ARRAY_SIZE(pmx_plgpio_43_44_47_48_modes),
.enb_on_reset = 1,
};
struct pmx_dev_mode pmx_plgpio_45_46_49_50_modes[] = {
{
.ids = 0x00,
.mask = PMX_TIMER_3_4_MASK,
},
};
struct pmx_dev pmx_plgpio_45_46_49_50 = {
.name = "plgpio 45, 46, 49 and 50",
.modes = pmx_plgpio_45_46_49_50_modes,
.mode_count = ARRAY_SIZE(pmx_plgpio_45_46_49_50_modes),
.enb_on_reset = 1,
};
#endif
/* spear padmux initialization function */
void spear_pmx_init(struct pmx_driver *pmx_driver, uint base, uint size)
{
int ret = 0;
/* pad mux initialization */
pmx_driver->base = ioremap(base, size);
if (!pmx_driver->base) {
ret = -ENOMEM;
goto pmx_fail;
}
ret = pmx_register(pmx_driver);
iounmap(pmx_driver->base);
pmx_fail:
if (ret)
printk(KERN_ERR "padmux: registration failed. err no: %d\n",
ret);
}