/*
* Copyright (C) 2007 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.
*
*
*/
#include <common.h>
#include <net.h>
#include <init.h>
#include <environment.h>
#include <mach/imx-regs.h>
#include <fec.h>
#include <notifier.h>
#include <mach/gpio.h>
#include <asm/armlinux.h>
#include <generated/mach-types.h>
#include <partition.h>
#include <fs.h>
#include <nand.h>
#include <spi/spi.h>
#include <io.h>
#include <mach/imx-nand.h>
#include <mach/imx-pll.h>
#include <mach/imxfb.h>
#include <i2c/i2c.h>
#include <mach/spi.h>
#include <mach/iomux-mx27.h>
#include <mach/devices-imx27.h>
#include <mach/iim.h>
#include <mfd/mc13xxx.h>
#include "pll.h"
static struct fec_platform_data fec_info = {
.xcv_type = MII100,
.phy_addr = 1,
};
static int pcm038_spi_cs[] = {GPIO_PORTD + 28};
static struct spi_imx_master pcm038_spi_0_data = {
.chipselect = pcm038_spi_cs,
.num_chipselect = ARRAY_SIZE(pcm038_spi_cs),
};
static struct spi_board_info pcm038_spi_board_info[] = {
{
.name = "mc13xxx-spi",
.bus_num = 0,
.chip_select = 0,
}
};
static struct imx_nand_platform_data nand_info = {
.width = 1,
.hw_ecc = 1,
.flash_bbt = 1,
};
static struct imx_fb_videomode imxfb_mode = {
.mode = {
.name = "Sharp-LQ035Q7",
.refresh = 60,
.xres = 240,
.yres = 320,
.pixclock = 188679, /* in ps (5.3MHz) */
.hsync_len = 7,
.left_margin = 5,
.right_margin = 16,
.vsync_len = 1,
.upper_margin = 7,
.lower_margin = 9,
},
/*
* - HSYNC active high
* - VSYNC active high
* - clk notenabled while idle
* - clock not inverted
* - data not inverted
* - data enable low active
* - enable sharp mode
*/
.pcr = 0xF00080C0,
.bpp = 16,
};
static struct imx_fb_platform_data pcm038_fb_data = {
.mode = &imxfb_mode,
.num_modes = 1,
.pwmr = 0x00A903FF,
.lscr1 = 0x00120300,
.dmacr = 0x00020010,
};
/**
* The spctl0 register is a beast: Seems you can read it
* only one times without writing it again.
*/
static inline uint32_t get_pll_spctl10(void)
{
uint32_t reg;
reg = SPCTL0;
SPCTL0 = reg;
return reg;
}
/**
* If the PLL settings are in place switch the CPU core frequency to the max. value
*/
static int pcm038_power_init(void)
{
uint32_t spctl0 = get_pll_spctl10();
struct mc13xxx *mc13xxx = mc13xxx_get();
/* PLL registers already set to their final values? */
if (spctl0 == SPCTL0_VAL && MPCTL0 == MPCTL0_VAL) {
console_flush();
if (mc13xxx) {
mc13xxx_reg_write(mc13xxx, MC13783_REG_SWITCHERS(0),
MC13783_SWX_VOLTAGE(MC13783_SWX_VOLTAGE_1_450) |
MC13783_SWX_VOLTAGE_DVS(MC13783_SWX_VOLTAGE_1_450) |
MC13783_SWX_VOLTAGE_STANDBY(MC13783_SWX_VOLTAGE_1_450));
mc13xxx_reg_write(mc13xxx, MC13783_REG_SWITCHERS(4),
MC13783_SW1A_MODE(MC13783_SWX_MODE_NO_PULSE_SKIP) |
MC13783_SW1A_MODE_STANDBY(MC13783_SWX_MODE_NO_PULSE_SKIP) |
MC13783_SW1A_SOFTSTART |
MC13783_SW1B_MODE(MC13783_SWX_MODE_NO_PULSE_SKIP) |
MC13783_SW1B_MODE_STANDBY(MC13783_SWX_MODE_NO_PULSE_SKIP) |
MC13783_SW1B_SOFTSTART |
MC13783_SW_PLL_FACTOR(32));
/* Setup VMMC voltage */
if (IS_ENABLED(CONFIG_MCI_IMX)) {
u32 val;
mc13xxx_reg_read(mc13xxx, MC13783_REG_REG_SETTING(1), &val);
/* VMMC1 = 3.00 V */
val &= ~(7 << 6);
val |= 6 << 6;
mc13xxx_reg_write(mc13xxx, MC13783_REG_REG_SETTING(1), val);
mc13xxx_reg_read(mc13xxx, MC13783_REG_REG_MODE(1), &val);
/* Enable VMMC1 */
val |= 1 << 18;
mc13xxx_reg_write(mc13xxx, MC13783_REG_REG_MODE(1), val);
}
/* wait for required power level to run the CPU at 400 MHz */
udelay(100000);
CSCR = CSCR_VAL_FINAL;
PCDR0 = 0x130410c3;
PCDR1 = 0x09030911;
/* Clocks have changed. Notify clients */
clock_notifier_call_chain();
} else {
printf("Failed to initialize PMIC. Will continue with low CPU speed\n");
}
}
/* clock gating enable */
GPCR = 0x00050f08;
return 0;
}
static int pcm038_mem_init(void)
{
arm_add_mem_device("ram0", 0xa0000000, 128 * 1024 * 1024);
add_mem_device("ram1", 0xc8000000, 512 * 1024, /* Can be up to 2MiB */
IORESOURCE_MEM_WRITEABLE);
return 0;
}
mem_initcall(pcm038_mem_init);
static int pcm038_devices_init(void)
{
int i;
u64 uid = 0;
char *envdev;
unsigned int mode[] = {
PD0_AIN_FEC_TXD0,
PD1_AIN_FEC_TXD1,
PD2_AIN_FEC_TXD2,
PD3_AIN_FEC_TXD3,
PD4_AOUT_FEC_RX_ER,
PD5_AOUT_FEC_RXD1,
PD6_AOUT_FEC_RXD2,
PD7_AOUT_FEC_RXD3,
PD8_AF_FEC_MDIO,
PD9_AIN_FEC_MDC | GPIO_PUEN,
PD10_AOUT_FEC_CRS,
PD11_AOUT_FEC_TX_CLK,
PD12_AOUT_FEC_RXD0,
PD13_AOUT_FEC_RX_DV,
PD14_AOUT_FEC_RX_CLK,
PD15_AOUT_FEC_COL,
PD16_AIN_FEC_TX_ER,
PF23_AIN_FEC_TX_EN,
PE12_PF_UART1_TXD,
PE13_PF_UART1_RXD,
PE14_PF_UART1_CTS,
PE15_PF_UART1_RTS,
PD25_PF_CSPI1_RDY,
GPIO_PORTD | 28 | GPIO_GPIO | GPIO_OUT,
PD29_PF_CSPI1_SCLK,
PD30_PF_CSPI1_MISO,
PD31_PF_CSPI1_MOSI,
/* display */
PA5_PF_LSCLK,
PA6_PF_LD0,
PA7_PF_LD1,
PA8_PF_LD2,
PA9_PF_LD3,
PA10_PF_LD4,
PA11_PF_LD5,
PA12_PF_LD6,
PA13_PF_LD7,
PA14_PF_LD8,
PA15_PF_LD9,
PA16_PF_LD10,
PA17_PF_LD11,
PA18_PF_LD12,
PA19_PF_LD13,
PA20_PF_LD14,
PA21_PF_LD15,
PA22_PF_LD16,
PA23_PF_LD17,
PA24_PF_REV,
PA25_PF_CLS,
PA26_PF_PS,
PA27_PF_SPL_SPR,
PA28_PF_HSYNC,
PA29_PF_VSYNC,
PA30_PF_CONTRAST,
PA31_PF_OE_ACD,
/* OTG host */
PC7_PF_USBOTG_DATA5,
PC8_PF_USBOTG_DATA6,
PC9_PF_USBOTG_DATA0,
PC10_PF_USBOTG_DATA2,
PC11_PF_USBOTG_DATA1,
PC12_PF_USBOTG_DATA4,
PC13_PF_USBOTG_DATA3,
PE0_PF_USBOTG_NXT,
PE1_PF_USBOTG_STP,
PE2_PF_USBOTG_DIR,
PE24_PF_USBOTG_CLK,
PE25_PF_USBOTG_DATA7,
/* I2C1 */
PD17_PF_I2C_DATA | GPIO_PUEN,
PD18_PF_I2C_CLK,
/* I2C2 */
PC5_PF_I2C2_SDA,
PC6_PF_I2C2_SCL,
};
/* configure 16 bit nor flash on cs0 */
imx27_setup_weimcs(0, 0x22C2CF00, 0x75000D01, 0x00000900);
/* configure SRAM on cs1 */
imx27_setup_weimcs(1, 0x0000d843, 0x22252521, 0x22220a00);
/* initizalize gpios */
for (i = 0; i < ARRAY_SIZE(mode); i++)
imx_gpio_mode(mode[i]);
PCCR0 |= PCCR0_CSPI1_EN;
PCCR1 |= PCCR1_PERCLK2_EN;
spi_register_board_info(pcm038_spi_board_info, ARRAY_SIZE(pcm038_spi_board_info));
imx27_add_spi0(&pcm038_spi_0_data);
pcm038_power_init();
add_cfi_flash_device(DEVICE_ID_DYNAMIC, 0xC0000000, 32 * 1024 * 1024, 0);
imx27_add_nand(&nand_info);
imx27_add_fb(&pcm038_fb_data);
PCCR0 |= PCCR0_I2C1_EN | PCCR0_I2C2_EN;
imx27_add_i2c0(NULL);
imx27_add_i2c1(NULL);
/* Register the fec device after the PLL re-initialisation
* as the fec depends on the (now higher) ipg clock
*/
imx27_add_fec(&fec_info);
switch ((GPCR & GPCR_BOOT_MASK) >> GPCR_BOOT_SHIFT) {
case GPCR_BOOT_8BIT_NAND_2k:
case GPCR_BOOT_16BIT_NAND_2k:
case GPCR_BOOT_16BIT_NAND_512:
case GPCR_BOOT_8BIT_NAND_512:
devfs_add_partition("nand0", 0x00000, 0x80000,
DEVFS_PARTITION_FIXED, "self_raw");
dev_add_bb_dev("self_raw", "self0");
devfs_add_partition("nand0", 0x80000, 0x100000,
DEVFS_PARTITION_FIXED, "env_raw");
dev_add_bb_dev("env_raw", "env0");
envdev = "NAND";
break;
default:
devfs_add_partition("nor0", 0x00000, 0x80000,
DEVFS_PARTITION_FIXED, "self0");
devfs_add_partition("nor0", 0x80000, 0x100000,
DEVFS_PARTITION_FIXED, "env0");
protect_file("/dev/env0", 1);
envdev = "NOR";
}
printf("Using environment in %s Flash\n", envdev);
if (imx_iim_read(1, 1, &uid, 6) == 6)
armlinux_set_serial(uid);
armlinux_set_bootparams((void *)0xa0000100);
armlinux_set_architecture(MACH_TYPE_PCM038);
return 0;
}
device_initcall(pcm038_devices_init);
static int pcm038_console_init(void)
{
imx27_add_uart0();
return 0;
}
console_initcall(pcm038_console_init);
