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97334c6616
u-boot-brain/board/denx/m53evk/m53evk.c
Marek Vasut 97334c6616 arm: mx5: Avoid hardcoding memory sizes on M53EVK 
The DRAM size can be easily detected at runtime on i.MX53. Implement
such detection on M53EVK and adjust the rest of the macros accordingly
to use the detected values.

An important thing to note here is that we had to override the function
for trimming the effective DRAM address, get_effective_memsize(). That
is because the function uses CONFIG_MAX_MEM_MAPPED as the upper bound of
the available DRAM and we don't have gd->bd->bi_dram[0].size set up at
the time the function is called, thus we cannot put this into the macro
CONFIG_MAX_MEM_MAPPED . Instead, we use custom override where we use the
size of the first DRAM block which we just detected.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Wolfgang Denk <wd@denx.de>
2014-03-31 18:28:51 +02:00

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/*
* DENX M53 module
*
* Copyright (C) 2012-2013 Marek Vasut <marex@denx.de>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <asm/io.h>
#include <asm/arch/imx-regs.h>
#include <asm/arch/sys_proto.h>
#include <asm/arch/crm_regs.h>
#include <asm/arch/clock.h>
#include <asm/arch/iomux-mx53.h>
#include <asm/imx-common/mx5_video.h>
#include <asm/arch/spl.h>
#include <asm/errno.h>
#include <netdev.h>
#include <i2c.h>
#include <mmc.h>
#include <spl.h>
#include <fsl_esdhc.h>
#include <asm/gpio.h>
#include <usb/ehci-fsl.h>
#include <linux/fb.h>
#include <ipu_pixfmt.h>
/* Special MXCFB sync flags are here. */
#include "../drivers/video/mxcfb.h"
DECLARE_GLOBAL_DATA_PTR;
static uint32_t mx53_dram_size[2];
phys_size_t get_effective_memsize(void)
{
/*
* WARNING: We must override get_effective_memsize() function here
* to report only the size of the first DRAM bank. This is to make
* U-Boot relocator place U-Boot into valid memory, that is, at the
* end of the first DRAM bank. If we did not override this function
* like so, U-Boot would be placed at the address of the first DRAM
* bank + total DRAM size - sizeof(uboot), which in the setup where
* each DRAM bank contains 512MiB of DRAM would result in placing
* U-Boot into invalid memory area close to the end of the first
* DRAM bank.
*/
return mx53_dram_size[0];
}
int dram_init(void)
{
mx53_dram_size[0] = get_ram_size((void *)PHYS_SDRAM_1, 1 << 30);
mx53_dram_size[1] = get_ram_size((void *)PHYS_SDRAM_2, 1 << 30);
gd->ram_size = mx53_dram_size[0] + mx53_dram_size[1];
return 0;
}
void dram_init_banksize(void)
{
gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
gd->bd->bi_dram[0].size = mx53_dram_size[0];
gd->bd->bi_dram[1].start = PHYS_SDRAM_2;
gd->bd->bi_dram[1].size = mx53_dram_size[1];
}
static void setup_iomux_uart(void)
{
static const iomux_v3_cfg_t uart_pads[] = {
MX53_PAD_PATA_BUFFER_EN__UART2_RXD_MUX,
MX53_PAD_PATA_DMARQ__UART2_TXD_MUX,
};
imx_iomux_v3_setup_multiple_pads(uart_pads, ARRAY_SIZE(uart_pads));
}
#ifdef CONFIG_USB_EHCI_MX5
int board_ehci_hcd_init(int port)
{
if (port == 0) {
/* USB OTG PWRON */
imx_iomux_v3_setup_pad(NEW_PAD_CTRL(MX53_PAD_GPIO_4__GPIO1_4,
PAD_CTL_PKE | PAD_CTL_DSE_HIGH));
gpio_direction_output(IMX_GPIO_NR(1, 4), 0);
/* USB OTG Over Current */
imx_iomux_v3_setup_pad(MX53_PAD_GPIO_18__GPIO7_13);
} else if (port == 1) {
/* USB Host PWRON */
imx_iomux_v3_setup_pad(NEW_PAD_CTRL(MX53_PAD_GPIO_2__GPIO1_2,
PAD_CTL_PKE | PAD_CTL_DSE_HIGH));
gpio_direction_output(IMX_GPIO_NR(1, 2), 0);
/* USB Host Over Current */
imx_iomux_v3_setup_pad(MX53_PAD_GPIO_3__USBOH3_USBH1_OC);
}
return 0;
}
#endif
static void setup_iomux_fec(void)
{
static const iomux_v3_cfg_t fec_pads[] = {
/* MDIO pads */
NEW_PAD_CTRL(MX53_PAD_FEC_MDIO__FEC_MDIO, PAD_CTL_HYS |
PAD_CTL_DSE_HIGH | PAD_CTL_PUS_22K_UP | PAD_CTL_ODE),
NEW_PAD_CTRL(MX53_PAD_FEC_MDC__FEC_MDC, PAD_CTL_DSE_HIGH),
/* FEC 0 pads */
NEW_PAD_CTRL(MX53_PAD_FEC_CRS_DV__FEC_RX_DV,
PAD_CTL_HYS | PAD_CTL_PKE),
NEW_PAD_CTRL(MX53_PAD_FEC_REF_CLK__FEC_TX_CLK,
PAD_CTL_HYS | PAD_CTL_PKE),
NEW_PAD_CTRL(MX53_PAD_FEC_RX_ER__FEC_RX_ER,
PAD_CTL_HYS | PAD_CTL_PKE),
NEW_PAD_CTRL(MX53_PAD_FEC_TX_EN__FEC_TX_EN, PAD_CTL_DSE_HIGH),
NEW_PAD_CTRL(MX53_PAD_FEC_RXD0__FEC_RDATA_0,
PAD_CTL_HYS | PAD_CTL_PKE),
NEW_PAD_CTRL(MX53_PAD_FEC_RXD1__FEC_RDATA_1,
PAD_CTL_HYS | PAD_CTL_PKE),
NEW_PAD_CTRL(MX53_PAD_FEC_TXD0__FEC_TDATA_0, PAD_CTL_DSE_HIGH),
NEW_PAD_CTRL(MX53_PAD_FEC_TXD1__FEC_TDATA_1, PAD_CTL_DSE_HIGH),
/* FEC 1 pads */
NEW_PAD_CTRL(MX53_PAD_KEY_COL0__FEC_RDATA_3,
PAD_CTL_HYS | PAD_CTL_PKE),
NEW_PAD_CTRL(MX53_PAD_KEY_ROW0__FEC_TX_ER,
PAD_CTL_HYS | PAD_CTL_PKE),
NEW_PAD_CTRL(MX53_PAD_KEY_COL1__FEC_RX_CLK,
PAD_CTL_HYS | PAD_CTL_PKE),
NEW_PAD_CTRL(MX53_PAD_KEY_ROW1__FEC_COL,
PAD_CTL_HYS | PAD_CTL_PKE),
NEW_PAD_CTRL(MX53_PAD_KEY_COL2__FEC_RDATA_2,
PAD_CTL_HYS | PAD_CTL_PKE),
NEW_PAD_CTRL(MX53_PAD_KEY_ROW2__FEC_TDATA_2, PAD_CTL_DSE_HIGH),
NEW_PAD_CTRL(MX53_PAD_KEY_COL3__FEC_CRS,
PAD_CTL_HYS | PAD_CTL_PKE),
NEW_PAD_CTRL(MX53_PAD_GPIO_19__FEC_TDATA_3, PAD_CTL_DSE_HIGH),
};
imx_iomux_v3_setup_multiple_pads(fec_pads, ARRAY_SIZE(fec_pads));
}
#ifdef CONFIG_FSL_ESDHC
struct fsl_esdhc_cfg esdhc_cfg = {
MMC_SDHC1_BASE_ADDR,
};
int board_mmc_getcd(struct mmc *mmc)
{
imx_iomux_v3_setup_pad(MX53_PAD_GPIO_1__GPIO1_1);
gpio_direction_input(IMX_GPIO_NR(1, 1));
return !gpio_get_value(IMX_GPIO_NR(1, 1));
}
#define SD_CMD_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_DSE_HIGH | \
PAD_CTL_PUS_100K_UP)
#define SD_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_PUS_47K_UP | \
PAD_CTL_DSE_HIGH)
int board_mmc_init(bd_t *bis)
{
static const iomux_v3_cfg_t sd1_pads[] = {
NEW_PAD_CTRL(MX53_PAD_SD1_CMD__ESDHC1_CMD, SD_CMD_PAD_CTRL),
NEW_PAD_CTRL(MX53_PAD_SD1_CLK__ESDHC1_CLK, SD_PAD_CTRL),
NEW_PAD_CTRL(MX53_PAD_SD1_DATA0__ESDHC1_DAT0, SD_PAD_CTRL),
NEW_PAD_CTRL(MX53_PAD_SD1_DATA1__ESDHC1_DAT1, SD_PAD_CTRL),
NEW_PAD_CTRL(MX53_PAD_SD1_DATA2__ESDHC1_DAT2, SD_PAD_CTRL),
NEW_PAD_CTRL(MX53_PAD_SD1_DATA3__ESDHC1_DAT3, SD_PAD_CTRL),
MX53_PAD_EIM_DA13__GPIO3_13,
MX53_PAD_EIM_EB3__GPIO2_31, /* SD power */
};
esdhc_cfg.sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK);
imx_iomux_v3_setup_multiple_pads(sd1_pads, ARRAY_SIZE(sd1_pads));
/* GPIO 2_31 is SD power */
gpio_direction_output(IMX_GPIO_NR(2, 31), 0);
return fsl_esdhc_initialize(bis, &esdhc_cfg);
}
#endif
#ifdef CONFIG_VIDEO
static struct fb_videomode const ampire_wvga = {
.name = "Ampire",
.refresh = 60,
.xres = 800,
.yres = 480,
.pixclock = 29851, /* picosecond (33.5 MHz) */
.left_margin = 89,
.right_margin = 164,
.upper_margin = 23,
.lower_margin = 10,
.hsync_len = 10,
.vsync_len = 10,
.sync = FB_SYNC_CLK_LAT_FALL,
};
int board_video_skip(void)
{
int ret;
ret = ipuv3_fb_init(&ampire_wvga, 1, IPU_PIX_FMT_RGB666);
if (ret)
printf("Ampire LCD cannot be configured: %d\n", ret);
return ret;
}
#endif
#define I2C_PAD_CTRL (PAD_CTL_SRE_FAST | PAD_CTL_DSE_HIGH | \
PAD_CTL_PUS_100K_UP | PAD_CTL_ODE)
static void setup_iomux_i2c(void)
{
static const iomux_v3_cfg_t i2c_pads[] = {
NEW_PAD_CTRL(MX53_PAD_EIM_D16__I2C2_SDA, I2C_PAD_CTRL),
NEW_PAD_CTRL(MX53_PAD_EIM_EB2__I2C2_SCL, I2C_PAD_CTRL),
};
imx_iomux_v3_setup_multiple_pads(i2c_pads, ARRAY_SIZE(i2c_pads));
}
static void setup_iomux_video(void)
{
static const iomux_v3_cfg_t lcd_pads[] = {
MX53_PAD_EIM_DA9__IPU_DISP1_DAT_0,
MX53_PAD_EIM_DA8__IPU_DISP1_DAT_1,
MX53_PAD_EIM_DA7__IPU_DISP1_DAT_2,
MX53_PAD_EIM_DA6__IPU_DISP1_DAT_3,
MX53_PAD_EIM_DA5__IPU_DISP1_DAT_4,
MX53_PAD_EIM_DA4__IPU_DISP1_DAT_5,
MX53_PAD_EIM_DA3__IPU_DISP1_DAT_6,
MX53_PAD_EIM_DA2__IPU_DISP1_DAT_7,
MX53_PAD_EIM_DA1__IPU_DISP1_DAT_8,
MX53_PAD_EIM_DA0__IPU_DISP1_DAT_9,
MX53_PAD_EIM_EB1__IPU_DISP1_DAT_10,
MX53_PAD_EIM_EB0__IPU_DISP1_DAT_11,
MX53_PAD_EIM_A17__IPU_DISP1_DAT_12,
MX53_PAD_EIM_A18__IPU_DISP1_DAT_13,
MX53_PAD_EIM_A19__IPU_DISP1_DAT_14,
MX53_PAD_EIM_A20__IPU_DISP1_DAT_15,
MX53_PAD_EIM_A21__IPU_DISP1_DAT_16,
MX53_PAD_EIM_A22__IPU_DISP1_DAT_17,
MX53_PAD_EIM_A23__IPU_DISP1_DAT_18,
MX53_PAD_EIM_A24__IPU_DISP1_DAT_19,
MX53_PAD_EIM_D31__IPU_DISP1_DAT_20,
MX53_PAD_EIM_D30__IPU_DISP1_DAT_21,
MX53_PAD_EIM_D26__IPU_DISP1_DAT_22,
MX53_PAD_EIM_D27__IPU_DISP1_DAT_23,
MX53_PAD_EIM_A16__IPU_DI1_DISP_CLK,
MX53_PAD_EIM_DA13__IPU_DI1_D0_CS,
MX53_PAD_EIM_DA14__IPU_DI1_D1_CS,
MX53_PAD_EIM_DA15__IPU_DI1_PIN1,
MX53_PAD_EIM_DA11__IPU_DI1_PIN2,
MX53_PAD_EIM_DA12__IPU_DI1_PIN3,
MX53_PAD_EIM_A25__IPU_DI1_PIN12,
MX53_PAD_EIM_DA10__IPU_DI1_PIN15,
};
imx_iomux_v3_setup_multiple_pads(lcd_pads, ARRAY_SIZE(lcd_pads));
}
static void setup_iomux_nand(void)
{
static const iomux_v3_cfg_t nand_pads[] = {
NEW_PAD_CTRL(MX53_PAD_NANDF_WE_B__EMI_NANDF_WE_B,
PAD_CTL_DSE_HIGH),
NEW_PAD_CTRL(MX53_PAD_NANDF_RE_B__EMI_NANDF_RE_B,
PAD_CTL_DSE_HIGH),
NEW_PAD_CTRL(MX53_PAD_NANDF_CLE__EMI_NANDF_CLE,
PAD_CTL_DSE_HIGH),
NEW_PAD_CTRL(MX53_PAD_NANDF_ALE__EMI_NANDF_ALE,
PAD_CTL_DSE_HIGH),
NEW_PAD_CTRL(MX53_PAD_NANDF_WP_B__EMI_NANDF_WP_B,
PAD_CTL_PUS_100K_UP),
NEW_PAD_CTRL(MX53_PAD_NANDF_RB0__EMI_NANDF_RB_0,
PAD_CTL_PUS_100K_UP),
NEW_PAD_CTRL(MX53_PAD_NANDF_CS0__EMI_NANDF_CS_0,
PAD_CTL_DSE_HIGH),
NEW_PAD_CTRL(MX53_PAD_PATA_DATA0__EMI_NANDF_D_0,
PAD_CTL_DSE_HIGH | PAD_CTL_PKE),
NEW_PAD_CTRL(MX53_PAD_PATA_DATA1__EMI_NANDF_D_1,
PAD_CTL_DSE_HIGH | PAD_CTL_PKE),
NEW_PAD_CTRL(MX53_PAD_PATA_DATA2__EMI_NANDF_D_2,
PAD_CTL_DSE_HIGH | PAD_CTL_PKE),
NEW_PAD_CTRL(MX53_PAD_PATA_DATA3__EMI_NANDF_D_3,
PAD_CTL_DSE_HIGH | PAD_CTL_PKE),
NEW_PAD_CTRL(MX53_PAD_PATA_DATA4__EMI_NANDF_D_4,
PAD_CTL_DSE_HIGH | PAD_CTL_PKE),
NEW_PAD_CTRL(MX53_PAD_PATA_DATA5__EMI_NANDF_D_5,
PAD_CTL_DSE_HIGH | PAD_CTL_PKE),
NEW_PAD_CTRL(MX53_PAD_PATA_DATA6__EMI_NANDF_D_6,
PAD_CTL_DSE_HIGH | PAD_CTL_PKE),
NEW_PAD_CTRL(MX53_PAD_PATA_DATA7__EMI_NANDF_D_7,
PAD_CTL_DSE_HIGH | PAD_CTL_PKE),
};
imx_iomux_v3_setup_multiple_pads(nand_pads, ARRAY_SIZE(nand_pads));
}
static void m53_set_clock(void)
{
int ret;
const uint32_t ref_clk = MXC_HCLK;
const uint32_t dramclk = 400;
uint32_t cpuclk;
imx_iomux_v3_setup_pad(NEW_PAD_CTRL(MX53_PAD_GPIO_10__GPIO4_0,
PAD_CTL_DSE_HIGH | PAD_CTL_PKE));
gpio_direction_input(IMX_GPIO_NR(4, 0));
/* GPIO10 selects modules' CPU speed, 1 = 1200MHz ; 0 = 800MHz */
cpuclk = gpio_get_value(IMX_GPIO_NR(4, 0)) ? 1200 : 800;
ret = mxc_set_clock(ref_clk, cpuclk, MXC_ARM_CLK);
if (ret)
printf("CPU: Switch CPU clock to %dMHz failed\n", cpuclk);
ret = mxc_set_clock(ref_clk, dramclk, MXC_PERIPH_CLK);
if (ret) {
printf("CPU: Switch peripheral clock to %dMHz failed\n",
dramclk);
}
ret = mxc_set_clock(ref_clk, dramclk, MXC_DDR_CLK);
if (ret)
printf("CPU: Switch DDR clock to %dMHz failed\n", dramclk);
}
static void m53_set_nand(void)
{
u32 i;
/* NAND flash is muxed on ATA pins */
setbits_le32(M4IF_BASE_ADDR + 0xc, M4IF_GENP_WEIM_MM_MASK);
/* Wait for Grant/Ack sequence (see EIM_CSnGCR2:MUX16_BYP_GRANT) */
for (i = 0x4; i < 0x94; i += 0x18) {
clrbits_le32(WEIM_BASE_ADDR + i,
WEIM_GCR2_MUX16_BYP_GRANT_MASK);
}
mxc_set_clock(0, 33, MXC_NFC_CLK);
enable_nfc_clk(1);
}
int board_early_init_f(void)
{
setup_iomux_uart();
setup_iomux_fec();
setup_iomux_i2c();
setup_iomux_nand();
setup_iomux_video();
m53_set_clock();
mxc_set_sata_internal_clock();
/* NAND clock @ 33MHz */
m53_set_nand();
return 0;
}
int board_init(void)
{
gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
return 0;
}
int checkboard(void)
{
puts("Board: DENX M53EVK\n");
return 0;
}
/*
* NAND SPL
*/
#ifdef CONFIG_SPL_BUILD
void spl_board_init(void)
{
setup_iomux_nand();
m53_set_clock();
m53_set_nand();
}
u32 spl_boot_device(void)
{
return BOOT_DEVICE_NAND;
}
#endif
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