u-boot/board/CarMediaLab/flea3/flea3.c
Tom Rini 83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00

221 lines
4.9 KiB
C

// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2007, Guennadi Liakhovetski <lg@denx.de>
*
* (C) Copyright 2008-2010 Freescale Semiconductor, Inc.
*
* Copyright (C) 2011, Stefano Babic <sbabic@denx.de>
*/
#include <common.h>
#include <asm/io.h>
#include <linux/errno.h>
#include <asm/arch/imx-regs.h>
#include <asm/arch/crm_regs.h>
#include <asm/arch/iomux-mx35.h>
#include <i2c.h>
#include <linux/types.h>
#include <asm/gpio.h>
#include <asm/arch/sys_proto.h>
#include <netdev.h>
#include <fdt_support.h>
#include <mtd_node.h>
#include <jffs2/load_kernel.h>
#ifndef CONFIG_BOARD_EARLY_INIT_F
#error "CONFIG_BOARD_EARLY_INIT_F must be set for this board"
#endif
#define CCM_CCMR_CONFIG 0x003F4208
#define ESDCTL_DDR2_CONFIG 0x007FFC3F
static inline void dram_wait(unsigned int count)
{
volatile unsigned int wait = count;
while (wait--)
;
}
DECLARE_GLOBAL_DATA_PTR;
int dram_init(void)
{
gd->ram_size = get_ram_size((long *)PHYS_SDRAM_1,
PHYS_SDRAM_1_SIZE);
return 0;
}
static void board_setup_sdram(void)
{
struct esdc_regs *esdc = (struct esdc_regs *)ESDCTL_BASE_ADDR;
/* Initialize with default values both CSD0/1 */
writel(0x2000, &esdc->esdctl0);
writel(0x2000, &esdc->esdctl1);
mx3_setup_sdram_bank(CSD0_BASE_ADDR, ESDCTL_DDR2_CONFIG,
13, 10, 2, 0x8080);
}
static void setup_iomux_uart3(void)
{
static const iomux_v3_cfg_t uart3_pads[] = {
MX35_PAD_RTS2__UART3_RXD_MUX,
MX35_PAD_CTS2__UART3_TXD_MUX,
};
imx_iomux_v3_setup_multiple_pads(uart3_pads, ARRAY_SIZE(uart3_pads));
}
#define I2C_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_PUS_100K_DOWN | PAD_CTL_ODE)
static void setup_iomux_i2c(void)
{
static const iomux_v3_cfg_t i2c_pads[] = {
NEW_PAD_CTRL(MX35_PAD_I2C1_CLK__I2C1_SCL, I2C_PAD_CTRL),
NEW_PAD_CTRL(MX35_PAD_I2C1_DAT__I2C1_SDA, I2C_PAD_CTRL),
NEW_PAD_CTRL(MX35_PAD_TX3_RX2__I2C3_SCL, I2C_PAD_CTRL),
NEW_PAD_CTRL(MX35_PAD_TX2_RX3__I2C3_SDA, I2C_PAD_CTRL),
};
imx_iomux_v3_setup_multiple_pads(i2c_pads, ARRAY_SIZE(i2c_pads));
}
static void setup_iomux_spi(void)
{
static const iomux_v3_cfg_t spi_pads[] = {
MX35_PAD_CSPI1_MOSI__CSPI1_MOSI,
MX35_PAD_CSPI1_MISO__CSPI1_MISO,
MX35_PAD_CSPI1_SS0__CSPI1_SS0,
MX35_PAD_CSPI1_SS1__CSPI1_SS1,
MX35_PAD_CSPI1_SCLK__CSPI1_SCLK,
};
imx_iomux_v3_setup_multiple_pads(spi_pads, ARRAY_SIZE(spi_pads));
}
static void setup_iomux_fec(void)
{
static const iomux_v3_cfg_t fec_pads[] = {
MX35_PAD_FEC_TX_CLK__FEC_TX_CLK,
MX35_PAD_FEC_RX_CLK__FEC_RX_CLK,
MX35_PAD_FEC_RX_DV__FEC_RX_DV,
MX35_PAD_FEC_COL__FEC_COL,
MX35_PAD_FEC_RDATA0__FEC_RDATA_0,
MX35_PAD_FEC_TDATA0__FEC_TDATA_0,
MX35_PAD_FEC_TX_EN__FEC_TX_EN,
MX35_PAD_FEC_MDC__FEC_MDC,
MX35_PAD_FEC_MDIO__FEC_MDIO,
MX35_PAD_FEC_TX_ERR__FEC_TX_ERR,
MX35_PAD_FEC_RX_ERR__FEC_RX_ERR,
MX35_PAD_FEC_CRS__FEC_CRS,
MX35_PAD_FEC_RDATA1__FEC_RDATA_1,
MX35_PAD_FEC_TDATA1__FEC_TDATA_1,
MX35_PAD_FEC_RDATA2__FEC_RDATA_2,
MX35_PAD_FEC_TDATA2__FEC_TDATA_2,
MX35_PAD_FEC_RDATA3__FEC_RDATA_3,
MX35_PAD_FEC_TDATA3__FEC_TDATA_3,
/* GPIO used to power off ethernet */
MX35_PAD_STXFS4__GPIO2_31,
};
/* setup pins for FEC */
imx_iomux_v3_setup_multiple_pads(fec_pads, ARRAY_SIZE(fec_pads));
}
int board_early_init_f(void)
{
struct ccm_regs *ccm =
(struct ccm_regs *)IMX_CCM_BASE;
/* setup GPIO3_1 to set HighVCore signal */
imx_iomux_v3_setup_pad(MX35_PAD_ATA_DA1__GPIO3_1);
gpio_direction_output(65, 1);
/* initialize PLL and clock configuration */
writel(CCM_CCMR_CONFIG, &ccm->ccmr);
writel(CCM_MPLL_532_HZ, &ccm->mpctl);
writel(CCM_PPLL_300_HZ, &ccm->ppctl);
/* Set the core to run at 532 Mhz */
writel(0x00001000, &ccm->pdr0);
/* Set-up RAM */
board_setup_sdram();
/* enable clocks */
writel(readl(&ccm->cgr0) |
MXC_CCM_CGR0_EMI_MASK |
MXC_CCM_CGR0_EDIO_MASK |
MXC_CCM_CGR0_EPIT1_MASK,
&ccm->cgr0);
writel(readl(&ccm->cgr1) |
MXC_CCM_CGR1_FEC_MASK |
MXC_CCM_CGR1_GPIO1_MASK |
MXC_CCM_CGR1_GPIO2_MASK |
MXC_CCM_CGR1_GPIO3_MASK |
MXC_CCM_CGR1_I2C1_MASK |
MXC_CCM_CGR1_I2C2_MASK |
MXC_CCM_CGR1_I2C3_MASK,
&ccm->cgr1);
/* Set-up NAND */
__raw_writel(readl(&ccm->rcsr) | MXC_CCM_RCSR_NFC_FMS, &ccm->rcsr);
/* Set pinmux for the required peripherals */
setup_iomux_uart3();
setup_iomux_i2c();
setup_iomux_fec();
setup_iomux_spi();
return 0;
}
int board_init(void)
{
/* address of boot parameters */
gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
/* Enable power for ethernet */
gpio_direction_output(63, 0);
udelay(2000);
return 0;
}
u32 get_board_rev(void)
{
int rev = 0;
return (get_cpu_rev() & ~(0xF << 8)) | (rev & 0xF) << 8;
}
/*
* called prior to booting kernel or by 'fdt boardsetup' command
*
*/
int ft_board_setup(void *blob, bd_t *bd)
{
struct node_info nodes[] = {
{ "physmap-flash.0", MTD_DEV_TYPE_NOR, }, /* NOR flash */
{ "mxc_nand", MTD_DEV_TYPE_NAND, }, /* NAND flash */
};
if (env_get("fdt_noauto")) {
puts(" Skiping ft_board_setup (fdt_noauto defined)\n");
return 0;
}
fdt_fixup_mtdparts(blob, nodes, ARRAY_SIZE(nodes));
return 0;
}