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/*
* Copyright 2011 Freescale Semiconductor, Inc.
* Copyright 2011 Linaro Ltd.
*
* The code contained herein is licensed under the GNU General Public
* License. You may obtain a copy of the GNU General Public License
* Version 2 or later at the following locations:
*
* http://www.opensource.org/licenses/gpl-license.html
* http://www.gnu.org/copyleft/gpl.html
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/irq.h>
#include <linux/irqdomain.h>
#include <linux/of.h>
#include <linux/of_irq.h>
#include <linux/of_platform.h>
#include <linux/phy.h>
#include <linux/micrel_phy.h>
#include <linux/dma-mapping.h>
#include <asm/hardware/cache-l2x0.h>
#include <asm/hardware/gic.h>
#include <asm/mach/map.h>
#include <asm/mach/arch.h>
#include <asm/mach/time.h>
#include <mach/common.h>
#include <mach/hardware.h>
#include <mach/iram.h>
#include <mach/iomux-mx6q.h>
#include <mach/ipu-v3.h>
#include <mach/mxc_vpu.h>
static iomux_v3_cfg_t imx6q_sabrelite_pads[] = {
/* DISPLAY */
MX6Q_PAD_DI0_DISP_CLK__IPU1_DI0_DISP_CLK,
MX6Q_PAD_DI0_PIN15__IPU1_DI0_PIN15,
MX6Q_PAD_DI0_PIN2__IPU1_DI0_PIN2,
MX6Q_PAD_DI0_PIN3__IPU1_DI0_PIN3,
MX6Q_PAD_DISP0_DAT0__IPU1_DISP0_DAT_0,
MX6Q_PAD_DISP0_DAT1__IPU1_DISP0_DAT_1,
MX6Q_PAD_DISP0_DAT2__IPU1_DISP0_DAT_2,
MX6Q_PAD_DISP0_DAT3__IPU1_DISP0_DAT_3,
MX6Q_PAD_DISP0_DAT4__IPU1_DISP0_DAT_4,
MX6Q_PAD_DISP0_DAT5__IPU1_DISP0_DAT_5,
MX6Q_PAD_DISP0_DAT6__IPU1_DISP0_DAT_6,
MX6Q_PAD_DISP0_DAT7__IPU1_DISP0_DAT_7,
MX6Q_PAD_DISP0_DAT8__IPU1_DISP0_DAT_8,
MX6Q_PAD_DISP0_DAT9__IPU1_DISP0_DAT_9,
MX6Q_PAD_DISP0_DAT10__IPU1_DISP0_DAT_10,
MX6Q_PAD_DISP0_DAT11__IPU1_DISP0_DAT_11,
MX6Q_PAD_DISP0_DAT12__IPU1_DISP0_DAT_12,
MX6Q_PAD_DISP0_DAT13__IPU1_DISP0_DAT_13,
MX6Q_PAD_DISP0_DAT14__IPU1_DISP0_DAT_14,
MX6Q_PAD_DISP0_DAT15__IPU1_DISP0_DAT_15,
MX6Q_PAD_DISP0_DAT16__IPU1_DISP0_DAT_16,
MX6Q_PAD_DISP0_DAT17__IPU1_DISP0_DAT_17,
MX6Q_PAD_DISP0_DAT18__IPU1_DISP0_DAT_18,
MX6Q_PAD_DISP0_DAT19__IPU1_DISP0_DAT_19,
MX6Q_PAD_DISP0_DAT20__IPU1_DISP0_DAT_20,
MX6Q_PAD_DISP0_DAT21__IPU1_DISP0_DAT_21,
MX6Q_PAD_DISP0_DAT22__IPU1_DISP0_DAT_22,
MX6Q_PAD_DISP0_DAT23__IPU1_DISP0_DAT_23,
/* PWM1 */
MX6Q_PAD_SD1_CMD__PWM4_PWMO,
/* I2C2 */
MX6Q_PAD_KEY_COL3__I2C2_SCL,
MX6Q_PAD_KEY_ROW3__I2C2_SDA,
/* I2C3 */
MX6Q_PAD_GPIO_5__I2C3_SCL,
MX6Q_PAD_GPIO_16__I2C3_SDA,
/* GPIO */
MX6Q_PAD_NANDF_D0__GPIO_2_0,
MX6Q_PAD_EIM_D23__GPIO_3_23,
};
/* For imx6q sabrelite board: set KSZ9021RN RGMII pad skew */
static int ksz9021rn_phy_fixup(struct phy_device *phydev)
{
/* min rx data delay */
phy_write(phydev, 0x0b, 0x8105);
phy_write(phydev, 0x0c, 0x0000);
/* max rx/tx clock delay, min rx/tx control delay */
phy_write(phydev, 0x0b, 0x8104);
phy_write(phydev, 0x0c, 0xf0f0);
phy_write(phydev, 0x0b, 0x104);
return 0;
}
static int mx6q_ipuv3_init(int id)
{
imx_reset_ipu(id);
return 0;
}
static void mx6q_ipuv3_pg(int enable)
{
/*TODO*/
}
static struct imx_ipuv3_platform_data ipuv3_pdata = {
.rev = 4,
.init = mx6q_ipuv3_init,
.pg = mx6q_ipuv3_pg,
};
static void mx6q_vpu_reset(void)
{
imx_reset_vpu();
}
static struct mxc_vpu_platform_data vpu_pdata = {
.iram_enable = true,
.iram_size = 0x21000,
.reset = mx6q_vpu_reset,
};
static const struct of_dev_auxdata imx6q_auxdata_lookup[] __initconst = {
OF_DEV_AUXDATA("fsl,ipuv3", MX6Q_IPU1_BASE_ADDR, "imx-ipuv3.0", &ipuv3_pdata),
OF_DEV_AUXDATA("fsl,ipuv3", MX6Q_IPU2_BASE_ADDR, "imx-ipuv3.1", &ipuv3_pdata),
OF_DEV_AUXDATA("fsl,vpu", MX6Q_VPU_BASE_ADDR, "mxc_vpu.0", &vpu_pdata),
};
static void __init imx6q_init_machine(void)
{
if (of_machine_is_compatible("fsl,imx6q-sabrelite")) {
phy_register_fixup_for_uid(PHY_ID_KSZ9021, MICREL_PHY_ID_MASK,
ksz9021rn_phy_fixup);
mxc_iomux_v3_setup_multiple_pads(imx6q_sabrelite_pads,
ARRAY_SIZE(imx6q_sabrelite_pads));
}
of_platform_populate(NULL, of_default_bus_match_table,
imx6q_auxdata_lookup, NULL);
iram_init(MX6Q_IRAM_BASE_ADDR, MX6Q_IRAM_SIZE);
imx6q_pm_init();
}
static struct map_desc imx_mx6q_iomux_desc[] = {
{
.virtual = MX6Q_IO_P2V(MX6Q_IOMUXC_BASE_ADDR),
.pfn = __phys_to_pfn(MX6Q_IOMUXC_BASE_ADDR),
.length = MX6Q_IOMUXC_SIZE,
.type = MT_DEVICE,
},
};
static void __init imx6q_iomux_map_io(void)
{
iotable_init(imx_mx6q_iomux_desc, ARRAY_SIZE(imx_mx6q_iomux_desc));
mxc_iomux_v3_init(MX6Q_IO_ADDRESS(MX6Q_IOMUXC_BASE_ADDR));
}
static void __init imx6q_map_io(void)
{
imx_lluart_map_io();
imx_scu_map_io();
imx6q_clock_map_io();
imx6q_iomux_map_io();
init_consistent_dma_size(SZ_64M);
if (!system_rev)
system_rev = 0x63000;
}
static int __init imx6q_gpio_add_irq_domain(struct device_node *np,
struct device_node *interrupt_parent)
{
static int gpio_irq_base = MXC_GPIO_IRQ_START + ARCH_NR_GPIOS;
gpio_irq_base -= 32;
irq_domain_add_simple(np, gpio_irq_base);
return 0;
}
static const struct of_device_id imx6q_irq_match[] __initconst = {
{ .compatible = "arm,cortex-a9-gic", .data = gic_of_init, },
{ .compatible = "fsl,imx6q-gpio", .data = imx6q_gpio_add_irq_domain, },
{ /* sentinel */ }
};
static void __init imx6q_init_irq(void)
{
l2x0_of_init(0, ~0UL);
imx_src_init();
imx_gpc_init();
of_irq_init(imx6q_irq_match);
}
static void __init imx6q_timer_init(void)
{
mx6q_clocks_init();
}
static struct sys_timer imx6q_timer = {
.init = imx6q_timer_init,
};
static const char *imx6q_dt_compat[] __initdata = {
"fsl,imx6q-arm2",
"fsl,imx6q-sabrelite",
NULL,
};
DT_MACHINE_START(IMX6Q, "Freescale i.MX6 Quad (Device Tree)")
.map_io = imx6q_map_io,
.init_irq = imx6q_init_irq,
.handle_irq = imx6q_handle_irq,
.timer = &imx6q_timer,
.init_machine = imx6q_init_machine,
.dt_compat = imx6q_dt_compat,
MACHINE_END
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