Commit 8c25c36f authored by Sascha Hauer's avatar Sascha Hauer
Browse files

Add i.MX25 support


Signed-off-by: default avatarSascha Hauer <s.hauer@pengutronix.de>
parent a058cbc1
......@@ -135,6 +135,7 @@ machine-$(CONFIG_ARCH_MSM) := msm
machine-$(CONFIG_ARCH_MV78XX0) := mv78xx0
machine-$(CONFIG_ARCH_MX1) := mx1
machine-$(CONFIG_ARCH_MX2) := mx2
machine-$(CONFIG_ARCH_MX25) := mx25
machine-$(CONFIG_ARCH_MX3) := mx3
machine-$(CONFIG_ARCH_NETX) := netx
machine-$(CONFIG_ARCH_NS9XXX) := ns9xxx
......
if ARCH_MX25
comment "MX25 platforms:"
endif
obj-y := mm.o devices.o
obj-$(CONFIG_ARCH_MX25) += clock.o
zreladdr-y := 0x80008000
params_phys-y := 0x80000100
initrd_phys-y := 0x80800000
/*
* Copyright (C) 2009 by Sascha Hauer, Pengutronix
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/list.h>
#include <linux/clk.h>
#include <linux/io.h>
#include <asm/clkdev.h>
#include <mach/clock.h>
#include <mach/hardware.h>
#include <mach/common.h>
#include <mach/mx25.h>
#define CRM_BASE MX25_IO_ADDRESS(MX25_CRM_BASE_ADDR)
#define CCM_MPCTL 0x00
#define CCM_UPCTL 0x04
#define CCM_CCTL 0x08
#define CCM_CGCR0 0x0C
#define CCM_CGCR1 0x10
#define CCM_CGCR2 0x14
#define CCM_PCDR0 0x18
#define CCM_PCDR1 0x1C
#define CCM_PCDR2 0x20
#define CCM_PCDR3 0x24
#define CCM_RCSR 0x28
#define CCM_CRDR 0x2C
#define CCM_DCVR0 0x30
#define CCM_DCVR1 0x34
#define CCM_DCVR2 0x38
#define CCM_DCVR3 0x3c
#define CCM_LTR0 0x40
#define CCM_LTR1 0x44
#define CCM_LTR2 0x48
#define CCM_LTR3 0x4c
static unsigned long get_rate_mpll(void)
{
ulong mpctl = __raw_readl(CRM_BASE + CCM_MPCTL);
return mxc_decode_pll(mpctl, 24000000);
}
static unsigned long get_rate_upll(void)
{
ulong mpctl = __raw_readl(CRM_BASE + CCM_UPCTL);
return mxc_decode_pll(mpctl, 24000000);
}
unsigned long get_rate_arm(struct clk *clk)
{
unsigned long cctl = readl(CRM_BASE + CCM_CCTL);
unsigned long rate = get_rate_mpll();
if (cctl & (1 << 14))
rate = (rate * 3) >> 1;
return rate / ((cctl >> 30) + 1);
}
static unsigned long get_rate_ahb(struct clk *clk)
{
unsigned long cctl = readl(CRM_BASE + CCM_CCTL);
return get_rate_arm(NULL) / (((cctl >> 28) & 0x3) + 1);
}
static unsigned long get_rate_ipg(struct clk *clk)
{
return get_rate_ahb(NULL) >> 1;
}
static unsigned long get_rate_per(int per)
{
unsigned long ofs = (per & 0x3) * 8;
unsigned long reg = per & ~0x3;
unsigned long val = (readl(CRM_BASE + CCM_PCDR0 + reg) >> ofs) & 0x3f;
unsigned long fref;
if (readl(CRM_BASE + 0x64) & (1 << per))
fref = get_rate_upll();
else
fref = get_rate_ipg(NULL);
return fref / (val + 1);
}
static unsigned long get_rate_uart(struct clk *clk)
{
return get_rate_per(15);
}
static unsigned long get_rate_i2c(struct clk *clk)
{
return get_rate_per(6);
}
static unsigned long get_rate_nfc(struct clk *clk)
{
return get_rate_per(8);
}
static unsigned long get_rate_otg(struct clk *clk)
{
return 48000000; /* FIXME */
}
static int clk_cgcr_enable(struct clk *clk)
{
u32 reg;
reg = __raw_readl(clk->enable_reg);
reg |= 1 << clk->enable_shift;
__raw_writel(reg, clk->enable_reg);
return 0;
}
static void clk_cgcr_disable(struct clk *clk)
{
u32 reg;
reg = __raw_readl(clk->enable_reg);
reg &= ~(1 << clk->enable_shift);
__raw_writel(reg, clk->enable_reg);
}
#define DEFINE_CLOCK(name, i, er, es, gr, sr) \
static struct clk name = { \
.id = i, \
.enable_reg = CRM_BASE + er, \
.enable_shift = es, \
.get_rate = gr, \
.set_rate = sr, \
.enable = clk_cgcr_enable, \
.disable = clk_cgcr_disable, \
}
DEFINE_CLOCK(gpt_clk, 0, CCM_CGCR0, 5, get_rate_ipg, NULL);
DEFINE_CLOCK(cspi1_clk, 0, CCM_CGCR1, 5, get_rate_ipg, NULL);
DEFINE_CLOCK(cspi2_clk, 0, CCM_CGCR1, 6, get_rate_ipg, NULL);
DEFINE_CLOCK(cspi3_clk, 0, CCM_CGCR1, 7, get_rate_ipg, NULL);
DEFINE_CLOCK(uart1_clk, 0, CCM_CGCR2, 14, get_rate_uart, NULL);
DEFINE_CLOCK(uart2_clk, 0, CCM_CGCR2, 15, get_rate_uart, NULL);
DEFINE_CLOCK(uart3_clk, 0, CCM_CGCR2, 16, get_rate_uart, NULL);
DEFINE_CLOCK(uart4_clk, 0, CCM_CGCR2, 17, get_rate_uart, NULL);
DEFINE_CLOCK(uart5_clk, 0, CCM_CGCR2, 18, get_rate_uart, NULL);
DEFINE_CLOCK(nfc_clk, 0, CCM_CGCR0, 8, get_rate_nfc, NULL);
DEFINE_CLOCK(usbotg_clk, 0, CCM_CGCR0, 28, get_rate_otg, NULL);
DEFINE_CLOCK(pwm1_clk, 0, CCM_CGCR1, 31, get_rate_ipg, NULL);
DEFINE_CLOCK(pwm2_clk, 0, CCM_CGCR2, 0, get_rate_ipg, NULL);
DEFINE_CLOCK(pwm3_clk, 0, CCM_CGCR2, 1, get_rate_ipg, NULL);
DEFINE_CLOCK(pwm4_clk, 0, CCM_CGCR2, 2, get_rate_ipg, NULL);
DEFINE_CLOCK(kpp_clk, 0, CCM_CGCR1, 28, get_rate_ipg, NULL);
DEFINE_CLOCK(tsc_clk, 0, CCM_CGCR2, 13, get_rate_ipg, NULL);
DEFINE_CLOCK(i2c_clk, 0, CCM_CGCR0, 6, get_rate_i2c, NULL);
#define _REGISTER_CLOCK(d, n, c) \
{ \
.dev_id = d, \
.con_id = n, \
.clk = &c, \
},
static struct clk_lookup lookups[] = {
_REGISTER_CLOCK("imx-uart.0", NULL, uart1_clk)
_REGISTER_CLOCK("imx-uart.1", NULL, uart2_clk)
_REGISTER_CLOCK("imx-uart.2", NULL, uart3_clk)
_REGISTER_CLOCK("imx-uart.3", NULL, uart4_clk)
_REGISTER_CLOCK("imx-uart.4", NULL, uart5_clk)
_REGISTER_CLOCK("mxc-ehci.0", "usb", usbotg_clk)
_REGISTER_CLOCK("mxc-ehci.1", "usb", usbotg_clk)
_REGISTER_CLOCK("mxc-ehci.2", "usb", usbotg_clk)
_REGISTER_CLOCK("fsl-usb2-udc", "usb", usbotg_clk)
_REGISTER_CLOCK("mxc_nand.0", NULL, nfc_clk)
_REGISTER_CLOCK("spi_imx.0", NULL, cspi1_clk)
_REGISTER_CLOCK("spi_imx.1", NULL, cspi2_clk)
_REGISTER_CLOCK("spi_imx.2", NULL, cspi3_clk)
_REGISTER_CLOCK("mxc_pwm.0", NULL, pwm1_clk)
_REGISTER_CLOCK("mxc_pwm.1", NULL, pwm2_clk)
_REGISTER_CLOCK("mxc_pwm.2", NULL, pwm3_clk)
_REGISTER_CLOCK("mxc_pwm.3", NULL, pwm4_clk)
_REGISTER_CLOCK("mxc-keypad", NULL, kpp_clk)
_REGISTER_CLOCK("mx25-adc", NULL, tsc_clk)
_REGISTER_CLOCK("imx-i2c.0", NULL, i2c_clk)
_REGISTER_CLOCK("imx-i2c.1", NULL, i2c_clk)
_REGISTER_CLOCK("imx-i2c.2", NULL, i2c_clk)
};
int __init mx25_clocks_init(unsigned long fref)
{
int i;
for (i = 0; i < ARRAY_SIZE(lookups); i++)
clkdev_add(&lookups[i]);
mxc_timer_init(&gpt_clk, MX25_IO_ADDRESS(MX25_GPT1_BASE_ADDR), 54);
return 0;
}
#include <linux/platform_device.h>
#include <linux/gpio.h>
#include <mach/mx25.h>
#include <mach/irqs.h>
static struct resource uart0[] = {
{
.start = 0x43f90000,
.end = 0x43f93fff,
.flags = IORESOURCE_MEM,
}, {
.start = 45,
.end = 45,
.flags = IORESOURCE_IRQ,
},
};
struct platform_device mxc_uart_device0 = {
.name = "imx-uart",
.id = 0,
.resource = uart0,
.num_resources = ARRAY_SIZE(uart0),
};
static struct resource uart1[] = {
{
.start = 0x43f94000,
.end = 0x43f97fff,
.flags = IORESOURCE_MEM,
}, {
.start = 32,
.end = 32,
.flags = IORESOURCE_IRQ,
},
};
struct platform_device mxc_uart_device1 = {
.name = "imx-uart",
.id = 1,
.resource = uart1,
.num_resources = ARRAY_SIZE(uart1),
};
static struct resource uart2[] = {
{
.start = 0x5000c000,
.end = 0x5000ffff,
.flags = IORESOURCE_MEM,
}, {
.start = 18,
.end = 18,
.flags = IORESOURCE_IRQ,
},
};
struct platform_device mxc_uart_device2 = {
.name = "imx-uart",
.id = 2,
.resource = uart2,
.num_resources = ARRAY_SIZE(uart2),
};
static struct resource uart3[] = {
{
.start = 0x50008000,
.end = 0x5000bfff,
.flags = IORESOURCE_MEM,
}, {
.start = 5,
.end = 5,
.flags = IORESOURCE_IRQ,
},
};
struct platform_device mxc_uart_device3 = {
.name = "imx-uart",
.id = 3,
.resource = uart3,
.num_resources = ARRAY_SIZE(uart3),
};
static struct resource uart4[] = {
{
.start = 0x5002c000,
.end = 0x5002ffff,
.flags = IORESOURCE_MEM,
}, {
.start = 40,
.end = 40,
.flags = IORESOURCE_IRQ,
},
};
struct platform_device mxc_uart_device4 = {
.name = "imx-uart",
.id = 4,
.resource = uart4,
.num_resources = ARRAY_SIZE(uart4),
};
#define MX25_OTG_BASE_ADDR 0x53FF4000
static u64 otg_dmamask = DMA_BIT_MASK(32);
static struct resource mxc_otg_resources[] = {
{
.start = MX25_OTG_BASE_ADDR,
.end = MX25_OTG_BASE_ADDR + 0x1ff,
.flags = IORESOURCE_MEM,
}, {
.start = 37,
.end = 37,
.flags = IORESOURCE_IRQ,
},
};
struct platform_device mxc_otg = {
.name = "mxc-ehci",
.id = 0,
.dev = {
.coherent_dma_mask = 0xffffffff,
.dma_mask = &otg_dmamask,
},
.resource = mxc_otg_resources,
.num_resources = ARRAY_SIZE(mxc_otg_resources),
};
/* OTG gadget device */
struct platform_device otg_udc_device = {
.name = "fsl-usb2-udc",
.id = -1,
.dev = {
.dma_mask = &otg_dmamask,
.coherent_dma_mask = 0xffffffff,
},
.resource = mxc_otg_resources,
.num_resources = ARRAY_SIZE(mxc_otg_resources),
};
static u64 usbh2_dmamask = DMA_BIT_MASK(32);
static struct resource mxc_usbh2_resources[] = {
{
.start = MX25_OTG_BASE_ADDR + 0x400,
.end = MX25_OTG_BASE_ADDR + 0x5ff,
.flags = IORESOURCE_MEM,
}, {
.start = 35,
.end = 35,
.flags = IORESOURCE_IRQ,
},
};
struct platform_device mxc_usbh2 = {
.name = "mxc-ehci",
.id = 1,
.dev = {
.coherent_dma_mask = 0xffffffff,
.dma_mask = &usbh2_dmamask,
},
.resource = mxc_usbh2_resources,
.num_resources = ARRAY_SIZE(mxc_usbh2_resources),
};
static struct resource mxc_spi_resources0[] = {
{
.start = 0x43fa4000,
.end = 0x43fa7fff,
.flags = IORESOURCE_MEM,
}, {
.start = 14,
.end = 14,
.flags = IORESOURCE_IRQ,
},
};
struct platform_device mxc_spi_device0 = {
.name = "spi_imx",
.id = 0,
.num_resources = ARRAY_SIZE(mxc_spi_resources0),
.resource = mxc_spi_resources0,
};
static struct resource mxc_spi_resources1[] = {
{
.start = 0x50010000,
.end = 0x50013fff,
.flags = IORESOURCE_MEM,
}, {
.start = 13,
.end = 13,
.flags = IORESOURCE_IRQ,
},
};
struct platform_device mxc_spi_device1 = {
.name = "spi_imx",
.id = 1,
.num_resources = ARRAY_SIZE(mxc_spi_resources1),
.resource = mxc_spi_resources1,
};
static struct resource mxc_spi_resources2[] = {
{
.start = 0x50004000,
.end = 0x50007fff,
.flags = IORESOURCE_MEM,
}, {
.start = 0,
.end = 0,
.flags = IORESOURCE_IRQ,
},
};
struct platform_device mxc_spi_device2 = {
.name = "spi_imx",
.id = 2,
.num_resources = ARRAY_SIZE(mxc_spi_resources2),
.resource = mxc_spi_resources2,
};
static struct resource mxc_pwm_resources0[] = {
{
.start = 0x53fe0000,
.end = 0x53fe3fff,
.flags = IORESOURCE_MEM,
}, {
.start = 26,
.end = 26,
.flags = IORESOURCE_IRQ,
}
};
struct platform_device mxc_pwm_device0 = {
.name = "mxc_pwm",
.id = 0,
.num_resources = ARRAY_SIZE(mxc_pwm_resources0),
.resource = mxc_pwm_resources0,
};
static struct resource mxc_pwm_resources1[] = {
{
.start = 0x53fa0000,
.end = 0x53fa3fff,
.flags = IORESOURCE_MEM,
}, {
.start = 36,
.end = 36,
.flags = IORESOURCE_IRQ,
}
};
struct platform_device mxc_pwm_device1 = {
.name = "mxc_pwm",
.id = 1,
.num_resources = ARRAY_SIZE(mxc_pwm_resources1),
.resource = mxc_pwm_resources1,
};
static struct resource mxc_pwm_resources2[] = {
{
.start = 0x53fa8000,
.end = 0x53fabfff,
.flags = IORESOURCE_MEM,
}, {
.start = 41,
.end = 41,
.flags = IORESOURCE_IRQ,
}
};
struct platform_device mxc_pwm_device2 = {
.name = "mxc_pwm",
.id = 2,
.num_resources = ARRAY_SIZE(mxc_pwm_resources2),
.resource = mxc_pwm_resources2,
};
static struct resource mxc_keypad_resources[] = {
{
.start = 0x43fa8000,
.end = 0x43fabfff,
.flags = IORESOURCE_MEM,
}, {
.start = 24,
.end = 24,
.flags = IORESOURCE_IRQ,
}
};
struct platform_device mxc_keypad_device = {
.name = "mxc-keypad",
.id = -1,
.num_resources = ARRAY_SIZE(mxc_keypad_resources),
.resource = mxc_keypad_resources,
};
static struct resource mxc_pwm_resources3[] = {
{
.start = 0x53fc8000,
.end = 0x53fcbfff,
.flags = IORESOURCE_MEM,
}, {
.start = 42,
.end = 42,
.flags = IORESOURCE_IRQ,
}
};
struct platform_device mxc_pwm_device3 = {
.name = "mxc_pwm",
.id = 3,
.num_resources = ARRAY_SIZE(mxc_pwm_resources3),
.resource = mxc_pwm_resources3,
};
static struct resource mxc_i2c_1_resources[] = {
{
.start = 0x43f80000,
.end = 0x43f83fff,
.flags = IORESOURCE_MEM,
}, {
.start = 3,
.end = 3,
.flags = IORESOURCE_IRQ,
}
};
struct platform_device mxc_i2c_device0 = {
.name = "imx-i2c",
.id = 0,
.num_resources = ARRAY_SIZE(mxc_i2c_1_resources),
.resource = mxc_i2c_1_resources,
};
static struct resource mxc_i2c_2_resources[] = {
{
.start = 0x43f98000,
.end = 0x43f9bfff,
.flags = IORESOURCE_MEM,
}, {
.start = 4,
.end = 4,
.flags = IORESOURCE_IRQ,
}
};
struct platform_device mxc_i2c_device1 = {
.name = "imx-i2c",
.id = 1,
.num_resources = ARRAY_SIZE(mxc_i2c_2_resources),
.resource = mxc_i2c_2_resources,
};
static struct resource mxc_i2c_3_resources[] = {
{
.start = 0x43f84000,
.end = 0x43f87fff,
.flags = IORESOURCE_MEM,
}, {
.start = 10,
.end = 10,
.flags = IORESOURCE_IRQ,
}
};
struct platform_device mxc_i2c_device2 = {
.name = "imx-i2c",
.id = 2,
.num_resources = ARRAY_SIZE(mxc_i2c_3_resources),
.resource = mxc_i2c_3_resources,
};
static struct mxc_gpio_port imx_gpio_ports[] = {
{
.chip.label = "gpio-0",