Mirrors/u-boot
2
0
Fork 0
mirror of https://github.com/AsahiLinux/u-boot synced 2024-11-30 08:31:03 +00:00
Code Issues Projects Releases Packages Wiki Activity
u-boot/board/freescale/mx53ard/mx53ard.c
Benoît Thébaudeau a2ac1b3a7d mxc: Fix SDHC multi-instance clock 
On mxc, each SDHC instance has a dedicated clock, so gd->sdhc_clk is not
suitable for the multi-instance use case (initialization made directly with
fsl_esdhc_initialize()).

This patch fixes this issue by adding a configuration field for the SDHC input
clock frequency.

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Eric Bénard <eric@eukrea.com>
Cc: Otavio Salvador <otavio@ossystems.com.br>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Jason Liu <r64343@freescale.com>
Cc: Matt Sealey <matt@genesi-usa.com>
Cc: Andy Fleming <afleming@gmail.com>
2012-10-16 12:35:10 +02:00

310 lines
8.8 KiB
C
Raw Blame History

/*
* (C) Copyright 2011 Freescale Semiconductor, Inc.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* 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., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <common.h>
#include <asm/io.h>
#include <asm/arch/imx-regs.h>
#include <asm/arch/mx5x_pins.h>
#include <asm/arch/sys_proto.h>
#include <asm/arch/crm_regs.h>
#include <asm/arch/clock.h>
#include <asm/arch/iomux.h>
#include <asm/errno.h>
#include <netdev.h>
#include <mmc.h>
#include <fsl_esdhc.h>
#include <asm/gpio.h>
#define ETHERNET_INT IMX_GPIO_NR(2, 31)
DECLARE_GLOBAL_DATA_PTR;
int dram_init(void)
{
u32 size1, size2;
size1 = get_ram_size((void *)PHYS_SDRAM_1, PHYS_SDRAM_1_SIZE);
size2 = get_ram_size((void *)PHYS_SDRAM_2, PHYS_SDRAM_2_SIZE);
gd->ram_size = size1 + size2;
return 0;
}
void dram_init_banksize(void)
{
gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE;
gd->bd->bi_dram[1].start = PHYS_SDRAM_2;
gd->bd->bi_dram[1].size = PHYS_SDRAM_2_SIZE;
}
static void setup_iomux_uart(void)
{
/* UART1 RXD */
mxc_request_iomux(MX53_PIN_ATA_DMACK, IOMUX_CONFIG_ALT3);
mxc_iomux_set_pad(MX53_PIN_ATA_DMACK,
PAD_CTL_HYS_ENABLE | PAD_CTL_DRV_HIGH |
PAD_CTL_PUE_PULL | PAD_CTL_PKE_ENABLE |
PAD_CTL_HYS_ENABLE | PAD_CTL_100K_PU |
PAD_CTL_ODE_OPENDRAIN_ENABLE);
mxc_iomux_set_input(MX53_UART1_IPP_UART_RXD_MUX_SELECT_INPUT, 0x3);
/* UART1 TXD */
mxc_request_iomux(MX53_PIN_ATA_DIOW, IOMUX_CONFIG_ALT3);
mxc_iomux_set_pad(MX53_PIN_ATA_DIOW,
PAD_CTL_HYS_ENABLE | PAD_CTL_DRV_HIGH |
PAD_CTL_PUE_PULL | PAD_CTL_PKE_ENABLE |
PAD_CTL_HYS_ENABLE | PAD_CTL_100K_PU |
PAD_CTL_ODE_OPENDRAIN_ENABLE);
}
#ifdef CONFIG_FSL_ESDHC
struct fsl_esdhc_cfg esdhc_cfg[2] = {
{MMC_SDHC1_BASE_ADDR},
{MMC_SDHC2_BASE_ADDR},
};
int board_mmc_getcd(struct mmc *mmc)
{
struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
int ret;
mxc_request_iomux(MX53_PIN_GPIO_1, IOMUX_CONFIG_ALT1);
gpio_direction_input(IMX_GPIO_NR(1, 1));
mxc_request_iomux(MX53_PIN_GPIO_4, IOMUX_CONFIG_ALT1);
gpio_direction_input(IMX_GPIO_NR(1, 4));
if (cfg->esdhc_base == MMC_SDHC1_BASE_ADDR)
ret = !gpio_get_value(IMX_GPIO_NR(1, 1));
else
ret = !gpio_get_value(IMX_GPIO_NR(1, 4));
return ret;
}
int board_mmc_init(bd_t *bis)
{
u32 index;
s32 status = 0;
esdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK);
esdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK);
for (index = 0; index < CONFIG_SYS_FSL_ESDHC_NUM; index++) {
switch (index) {
case 0:
mxc_request_iomux(MX53_PIN_SD1_CMD, IOMUX_CONFIG_ALT0);
mxc_request_iomux(MX53_PIN_SD1_CLK, IOMUX_CONFIG_ALT0);
mxc_request_iomux(MX53_PIN_SD1_DATA0,
IOMUX_CONFIG_ALT0);
mxc_request_iomux(MX53_PIN_SD1_DATA1,
IOMUX_CONFIG_ALT0);
mxc_request_iomux(MX53_PIN_SD1_DATA2,
IOMUX_CONFIG_ALT0);
mxc_request_iomux(MX53_PIN_SD1_DATA3,
IOMUX_CONFIG_ALT0);
mxc_iomux_set_pad(MX53_PIN_SD1_CMD, 0x1E4);
mxc_iomux_set_pad(MX53_PIN_SD1_CLK, 0xD4);
mxc_iomux_set_pad(MX53_PIN_SD1_DATA0, 0x1D4);
mxc_iomux_set_pad(MX53_PIN_SD1_DATA1, 0x1D4);
mxc_iomux_set_pad(MX53_PIN_SD1_DATA2, 0x1D4);
mxc_iomux_set_pad(MX53_PIN_SD1_DATA3, 0x1D4);
break;
case 1:
mxc_request_iomux(MX53_PIN_SD2_CMD,
IOMUX_CONFIG_ALT0 | IOMUX_CONFIG_SION);
mxc_request_iomux(MX53_PIN_SD2_CLK,
IOMUX_CONFIG_ALT0 | IOMUX_CONFIG_SION);
mxc_request_iomux(MX53_PIN_SD2_DATA0,
IOMUX_CONFIG_ALT0);
mxc_request_iomux(MX53_PIN_SD2_DATA1,
IOMUX_CONFIG_ALT0);
mxc_request_iomux(MX53_PIN_SD2_DATA2,
IOMUX_CONFIG_ALT0);
mxc_request_iomux(MX53_PIN_SD2_DATA3,
IOMUX_CONFIG_ALT0);
mxc_request_iomux(MX53_PIN_ATA_DATA12,
IOMUX_CONFIG_ALT2);
mxc_request_iomux(MX53_PIN_ATA_DATA13,
IOMUX_CONFIG_ALT2);
mxc_request_iomux(MX53_PIN_ATA_DATA14,
IOMUX_CONFIG_ALT2);
mxc_request_iomux(MX53_PIN_ATA_DATA15,
IOMUX_CONFIG_ALT2);
mxc_iomux_set_pad(MX53_PIN_SD2_CMD, 0x1E4);
mxc_iomux_set_pad(MX53_PIN_SD2_CLK, 0xD4);
mxc_iomux_set_pad(MX53_PIN_SD2_DATA0, 0x1D4);
mxc_iomux_set_pad(MX53_PIN_SD2_DATA1, 0x1D4);
mxc_iomux_set_pad(MX53_PIN_SD2_DATA2, 0x1D4);
mxc_iomux_set_pad(MX53_PIN_SD2_DATA3, 0x1D4);
mxc_iomux_set_pad(MX53_PIN_ATA_DATA12, 0x1D4);
mxc_iomux_set_pad(MX53_PIN_ATA_DATA13, 0x1D4);
mxc_iomux_set_pad(MX53_PIN_ATA_DATA14, 0x1D4);
mxc_iomux_set_pad(MX53_PIN_ATA_DATA15, 0x1D4);
break;
default:
printf("Warning: you configured more ESDHC controller"
"(%d) as supported by the board(2)\n",
CONFIG_SYS_FSL_ESDHC_NUM);
return status;
}
status |= fsl_esdhc_initialize(bis, &esdhc_cfg[index]);
}
return status;
}
#endif
static void weim_smc911x_iomux(void)
{
/* ETHERNET_INT as GPIO2_31 */
mxc_request_iomux(MX53_PIN_EIM_EB3, IOMUX_CONFIG_ALT1);
gpio_direction_input(ETHERNET_INT);
/* Data bus */
mxc_request_iomux(MX53_PIN_EIM_D16, IOMUX_CONFIG_ALT0);
mxc_iomux_set_pad(MX53_PIN_EIM_D16, 0xA4);
mxc_request_iomux(MX53_PIN_EIM_D17, IOMUX_CONFIG_ALT0);
mxc_iomux_set_pad(MX53_PIN_EIM_D17, 0xA4);
mxc_request_iomux(MX53_PIN_EIM_D18, IOMUX_CONFIG_ALT0);
mxc_iomux_set_pad(MX53_PIN_EIM_D18, 0xA4);
mxc_request_iomux(MX53_PIN_EIM_D19, IOMUX_CONFIG_ALT0);
mxc_iomux_set_pad(MX53_PIN_EIM_D19, 0xA4);
mxc_request_iomux(MX53_PIN_EIM_D20, IOMUX_CONFIG_ALT0);
mxc_iomux_set_pad(MX53_PIN_EIM_D20, 0xA4);
mxc_request_iomux(MX53_PIN_EIM_D21, IOMUX_CONFIG_ALT0);
mxc_iomux_set_pad(MX53_PIN_EIM_D21, 0xA4);
mxc_request_iomux(MX53_PIN_EIM_D22, IOMUX_CONFIG_ALT0);
mxc_iomux_set_pad(MX53_PIN_EIM_D22, 0xA4);
mxc_request_iomux(MX53_PIN_EIM_D23, IOMUX_CONFIG_ALT0);
mxc_iomux_set_pad(MX53_PIN_EIM_D23, 0xA4);
mxc_request_iomux(MX53_PIN_EIM_D24, IOMUX_CONFIG_ALT0);
mxc_iomux_set_pad(MX53_PIN_EIM_D24, 0xA4);
mxc_request_iomux(MX53_PIN_EIM_D25, IOMUX_CONFIG_ALT0);
mxc_iomux_set_pad(MX53_PIN_EIM_D25, 0xA4);
mxc_request_iomux(MX53_PIN_EIM_D26, IOMUX_CONFIG_ALT0);
mxc_iomux_set_pad(MX53_PIN_EIM_D26, 0xA4);
mxc_request_iomux(MX53_PIN_EIM_D27, IOMUX_CONFIG_ALT0);
mxc_iomux_set_pad(MX53_PIN_EIM_D27, 0xA4);
mxc_request_iomux(MX53_PIN_EIM_D28, IOMUX_CONFIG_ALT0);
mxc_iomux_set_pad(MX53_PIN_EIM_D28, 0xA4);
mxc_request_iomux(MX53_PIN_EIM_D29, IOMUX_CONFIG_ALT0);
mxc_iomux_set_pad(MX53_PIN_EIM_D29, 0xA4);
mxc_request_iomux(MX53_PIN_EIM_D30, IOMUX_CONFIG_ALT0);
mxc_iomux_set_pad(MX53_PIN_EIM_D30, 0xA4);
mxc_request_iomux(MX53_PIN_EIM_D31, IOMUX_CONFIG_ALT0);
mxc_iomux_set_pad(MX53_PIN_EIM_D31, 0xA4);
/* Address lines */
mxc_request_iomux(MX53_PIN_EIM_DA0, IOMUX_CONFIG_ALT0);
mxc_iomux_set_pad(MX53_PIN_EIM_DA0, 0xA4);
mxc_request_iomux(MX53_PIN_EIM_DA1, IOMUX_CONFIG_ALT0);
mxc_iomux_set_pad(MX53_PIN_EIM_DA1, 0xA4);
mxc_request_iomux(MX53_PIN_EIM_DA2, IOMUX_CONFIG_ALT0);
mxc_iomux_set_pad(MX53_PIN_EIM_DA2, 0xA4);
mxc_request_iomux(MX53_PIN_EIM_DA3, IOMUX_CONFIG_ALT0);
mxc_iomux_set_pad(MX53_PIN_EIM_DA3, 0xA4);
mxc_request_iomux(MX53_PIN_EIM_DA4, IOMUX_CONFIG_ALT0);
mxc_iomux_set_pad(MX53_PIN_EIM_DA4, 0xA4);
mxc_request_iomux(MX53_PIN_EIM_DA5, IOMUX_CONFIG_ALT0);
mxc_iomux_set_pad(MX53_PIN_EIM_DA5, 0xA4);
mxc_request_iomux(MX53_PIN_EIM_DA6, IOMUX_CONFIG_ALT0);
mxc_iomux_set_pad(MX53_PIN_EIM_DA6, 0xA4);
/* other EIM signals for ethernet */
mxc_request_iomux(MX53_PIN_EIM_OE, IOMUX_CONFIG_ALT0);
mxc_request_iomux(MX53_PIN_EIM_RW, IOMUX_CONFIG_ALT0);
mxc_request_iomux(MX53_PIN_EIM_CS1, IOMUX_CONFIG_ALT0);
}
static void weim_cs1_settings(void)
{
struct weim *weim_regs = (struct weim *)WEIM_BASE_ADDR;
writel(MX53ARD_CS1GCR1, &weim_regs->cs1gcr1);
writel(0x0, &weim_regs->cs1gcr2);
writel(MX53ARD_CS1RCR1, &weim_regs->cs1rcr1);
writel(MX53ARD_CS1RCR2, &weim_regs->cs1rcr2);
writel(MX53ARD_CS1WCR1, &weim_regs->cs1wcr1);
writel(0x0, &weim_regs->cs1wcr2);
writel(0x0, &weim_regs->wcr);
set_chipselect_size(CS0_64M_CS1_64M);
}
int board_early_init_f(void)
{
setup_iomux_uart();
return 0;
}
int board_init(void)
{
/* address of boot parameters */
gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
return 0;
}
int board_eth_init(bd_t *bis)
{
int rc = -ENODEV;
weim_smc911x_iomux();
weim_cs1_settings();
#ifdef CONFIG_SMC911X
rc = smc911x_initialize(0, CONFIG_SMC911X_BASE);
#endif
return rc;
}
int checkboard(void)
{
puts("Board: MX53ARD\n");
return 0;
}
Reference in a new issue View git blame Copy permalink