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https://github.com/brain-hackers/u-boot-brain
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![Marek Vasut](/assets/img/avatar_default.png)
The DRAM size can be easily detected at runtime on i.MX53. Implement such detection on MX53QSB 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>
413 lines
10 KiB
C
413 lines
10 KiB
C
/*
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* Copyright (C) 2011 Freescale Semiconductor, Inc.
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* Jason Liu <r64343@freescale.com>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <asm/io.h>
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#include <asm/arch/imx-regs.h>
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#include <asm/arch/sys_proto.h>
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#include <asm/arch/crm_regs.h>
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#include <asm/arch/clock.h>
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#include <asm/arch/iomux-mx53.h>
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#include <asm/arch/clock.h>
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#include <asm/errno.h>
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#include <asm/imx-common/mx5_video.h>
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#include <netdev.h>
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#include <i2c.h>
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#include <mmc.h>
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#include <fsl_esdhc.h>
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#include <asm/gpio.h>
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#include <power/pmic.h>
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#include <dialog_pmic.h>
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#include <fsl_pmic.h>
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#include <linux/fb.h>
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#include <ipu_pixfmt.h>
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#define MX53LOCO_LCD_POWER IMX_GPIO_NR(3, 24)
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DECLARE_GLOBAL_DATA_PTR;
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static uint32_t mx53_dram_size[2];
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phys_size_t get_effective_memsize(void)
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{
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/*
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* WARNING: We must override get_effective_memsize() function here
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* to report only the size of the first DRAM bank. This is to make
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* U-Boot relocator place U-Boot into valid memory, that is, at the
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* end of the first DRAM bank. If we did not override this function
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* like so, U-Boot would be placed at the address of the first DRAM
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* bank + total DRAM size - sizeof(uboot), which in the setup where
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* each DRAM bank contains 512MiB of DRAM would result in placing
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* U-Boot into invalid memory area close to the end of the first
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* DRAM bank.
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*/
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return mx53_dram_size[0];
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}
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int dram_init(void)
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{
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mx53_dram_size[0] = get_ram_size((void *)PHYS_SDRAM_1, 1 << 30);
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mx53_dram_size[1] = get_ram_size((void *)PHYS_SDRAM_2, 1 << 30);
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gd->ram_size = mx53_dram_size[0] + mx53_dram_size[1];
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return 0;
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}
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void dram_init_banksize(void)
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{
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gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
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gd->bd->bi_dram[0].size = mx53_dram_size[0];
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gd->bd->bi_dram[1].start = PHYS_SDRAM_2;
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gd->bd->bi_dram[1].size = mx53_dram_size[1];
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}
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u32 get_board_rev(void)
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{
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struct iim_regs *iim = (struct iim_regs *)IMX_IIM_BASE;
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struct fuse_bank *bank = &iim->bank[0];
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struct fuse_bank0_regs *fuse =
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(struct fuse_bank0_regs *)bank->fuse_regs;
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int rev = readl(&fuse->gp[6]);
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if (!i2c_probe(CONFIG_SYS_DIALOG_PMIC_I2C_ADDR))
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rev = 0;
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return (get_cpu_rev() & ~(0xF << 8)) | (rev & 0xF) << 8;
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}
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#define UART_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_DSE_HIGH | \
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PAD_CTL_PUS_100K_UP | PAD_CTL_ODE)
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static void setup_iomux_uart(void)
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{
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static const iomux_v3_cfg_t uart_pads[] = {
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NEW_PAD_CTRL(MX53_PAD_CSI0_DAT11__UART1_RXD_MUX, UART_PAD_CTRL),
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NEW_PAD_CTRL(MX53_PAD_CSI0_DAT10__UART1_TXD_MUX, UART_PAD_CTRL),
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};
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imx_iomux_v3_setup_multiple_pads(uart_pads, ARRAY_SIZE(uart_pads));
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}
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#ifdef CONFIG_USB_EHCI_MX5
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int board_ehci_hcd_init(int port)
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{
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/* request VBUS power enable pin, GPIO7_8 */
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imx_iomux_v3_setup_pad(MX53_PAD_PATA_DA_2__GPIO7_8);
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gpio_direction_output(IMX_GPIO_NR(7, 8), 1);
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return 0;
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}
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#endif
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static void setup_iomux_fec(void)
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{
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static const iomux_v3_cfg_t fec_pads[] = {
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NEW_PAD_CTRL(MX53_PAD_FEC_MDIO__FEC_MDIO, PAD_CTL_HYS |
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PAD_CTL_DSE_HIGH | PAD_CTL_PUS_22K_UP | PAD_CTL_ODE),
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NEW_PAD_CTRL(MX53_PAD_FEC_MDC__FEC_MDC, PAD_CTL_DSE_HIGH),
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NEW_PAD_CTRL(MX53_PAD_FEC_RXD1__FEC_RDATA_1,
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PAD_CTL_HYS | PAD_CTL_PKE),
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NEW_PAD_CTRL(MX53_PAD_FEC_RXD0__FEC_RDATA_0,
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PAD_CTL_HYS | PAD_CTL_PKE),
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NEW_PAD_CTRL(MX53_PAD_FEC_TXD1__FEC_TDATA_1, PAD_CTL_DSE_HIGH),
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NEW_PAD_CTRL(MX53_PAD_FEC_TXD0__FEC_TDATA_0, PAD_CTL_DSE_HIGH),
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NEW_PAD_CTRL(MX53_PAD_FEC_TX_EN__FEC_TX_EN, PAD_CTL_DSE_HIGH),
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NEW_PAD_CTRL(MX53_PAD_FEC_REF_CLK__FEC_TX_CLK,
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PAD_CTL_HYS | PAD_CTL_PKE),
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NEW_PAD_CTRL(MX53_PAD_FEC_RX_ER__FEC_RX_ER,
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PAD_CTL_HYS | PAD_CTL_PKE),
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NEW_PAD_CTRL(MX53_PAD_FEC_CRS_DV__FEC_RX_DV,
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PAD_CTL_HYS | PAD_CTL_PKE),
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};
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imx_iomux_v3_setup_multiple_pads(fec_pads, ARRAY_SIZE(fec_pads));
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}
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#ifdef CONFIG_FSL_ESDHC
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struct fsl_esdhc_cfg esdhc_cfg[2] = {
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{MMC_SDHC1_BASE_ADDR},
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{MMC_SDHC3_BASE_ADDR},
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};
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int board_mmc_getcd(struct mmc *mmc)
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{
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struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
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int ret;
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imx_iomux_v3_setup_pad(MX53_PAD_EIM_DA11__GPIO3_11);
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gpio_direction_input(IMX_GPIO_NR(3, 11));
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imx_iomux_v3_setup_pad(MX53_PAD_EIM_DA13__GPIO3_13);
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gpio_direction_input(IMX_GPIO_NR(3, 13));
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if (cfg->esdhc_base == MMC_SDHC1_BASE_ADDR)
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ret = !gpio_get_value(IMX_GPIO_NR(3, 13));
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else
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ret = !gpio_get_value(IMX_GPIO_NR(3, 11));
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return ret;
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}
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#define SD_CMD_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_DSE_HIGH | \
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PAD_CTL_PUS_100K_UP)
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#define SD_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_PUS_47K_UP | \
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PAD_CTL_DSE_HIGH)
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int board_mmc_init(bd_t *bis)
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{
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static const iomux_v3_cfg_t sd1_pads[] = {
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NEW_PAD_CTRL(MX53_PAD_SD1_CMD__ESDHC1_CMD, SD_CMD_PAD_CTRL),
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NEW_PAD_CTRL(MX53_PAD_SD1_CLK__ESDHC1_CLK, SD_PAD_CTRL),
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NEW_PAD_CTRL(MX53_PAD_SD1_DATA0__ESDHC1_DAT0, SD_PAD_CTRL),
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NEW_PAD_CTRL(MX53_PAD_SD1_DATA1__ESDHC1_DAT1, SD_PAD_CTRL),
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NEW_PAD_CTRL(MX53_PAD_SD1_DATA2__ESDHC1_DAT2, SD_PAD_CTRL),
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NEW_PAD_CTRL(MX53_PAD_SD1_DATA3__ESDHC1_DAT3, SD_PAD_CTRL),
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MX53_PAD_EIM_DA13__GPIO3_13,
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};
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static const iomux_v3_cfg_t sd2_pads[] = {
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NEW_PAD_CTRL(MX53_PAD_PATA_RESET_B__ESDHC3_CMD,
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SD_CMD_PAD_CTRL),
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NEW_PAD_CTRL(MX53_PAD_PATA_IORDY__ESDHC3_CLK, SD_PAD_CTRL),
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NEW_PAD_CTRL(MX53_PAD_PATA_DATA8__ESDHC3_DAT0, SD_PAD_CTRL),
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NEW_PAD_CTRL(MX53_PAD_PATA_DATA9__ESDHC3_DAT1, SD_PAD_CTRL),
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NEW_PAD_CTRL(MX53_PAD_PATA_DATA10__ESDHC3_DAT2, SD_PAD_CTRL),
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NEW_PAD_CTRL(MX53_PAD_PATA_DATA11__ESDHC3_DAT3, SD_PAD_CTRL),
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NEW_PAD_CTRL(MX53_PAD_PATA_DATA0__ESDHC3_DAT4, SD_PAD_CTRL),
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NEW_PAD_CTRL(MX53_PAD_PATA_DATA1__ESDHC3_DAT5, SD_PAD_CTRL),
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NEW_PAD_CTRL(MX53_PAD_PATA_DATA2__ESDHC3_DAT6, SD_PAD_CTRL),
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NEW_PAD_CTRL(MX53_PAD_PATA_DATA3__ESDHC3_DAT7, SD_PAD_CTRL),
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MX53_PAD_EIM_DA11__GPIO3_11,
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};
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u32 index;
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s32 status = 0;
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esdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK);
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esdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
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for (index = 0; index < CONFIG_SYS_FSL_ESDHC_NUM; index++) {
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switch (index) {
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case 0:
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imx_iomux_v3_setup_multiple_pads(sd1_pads,
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ARRAY_SIZE(sd1_pads));
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break;
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case 1:
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imx_iomux_v3_setup_multiple_pads(sd2_pads,
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ARRAY_SIZE(sd2_pads));
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break;
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default:
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printf("Warning: you configured more ESDHC controller"
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"(%d) as supported by the board(2)\n",
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CONFIG_SYS_FSL_ESDHC_NUM);
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return status;
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}
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status |= fsl_esdhc_initialize(bis, &esdhc_cfg[index]);
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}
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return status;
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}
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#endif
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#define I2C_PAD_CTRL (PAD_CTL_SRE_FAST | PAD_CTL_DSE_HIGH | \
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PAD_CTL_PUS_100K_UP | PAD_CTL_ODE)
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static void setup_iomux_i2c(void)
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{
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static const iomux_v3_cfg_t i2c1_pads[] = {
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NEW_PAD_CTRL(MX53_PAD_CSI0_DAT8__I2C1_SDA, I2C_PAD_CTRL),
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NEW_PAD_CTRL(MX53_PAD_CSI0_DAT9__I2C1_SCL, I2C_PAD_CTRL),
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};
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imx_iomux_v3_setup_multiple_pads(i2c1_pads, ARRAY_SIZE(i2c1_pads));
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}
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static int power_init(void)
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{
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unsigned int val;
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int ret;
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struct pmic *p;
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if (!i2c_probe(CONFIG_SYS_DIALOG_PMIC_I2C_ADDR)) {
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ret = pmic_dialog_init(I2C_PMIC);
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if (ret)
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return ret;
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p = pmic_get("DIALOG_PMIC");
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if (!p)
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return -ENODEV;
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/* Set VDDA to 1.25V */
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val = DA9052_BUCKCORE_BCOREEN | DA_BUCKCORE_VBCORE_1_250V;
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ret = pmic_reg_write(p, DA9053_BUCKCORE_REG, val);
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if (ret) {
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printf("Writing to BUCKCORE_REG failed: %d\n", ret);
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return ret;
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}
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pmic_reg_read(p, DA9053_SUPPLY_REG, &val);
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val |= DA9052_SUPPLY_VBCOREGO;
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ret = pmic_reg_write(p, DA9053_SUPPLY_REG, val);
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if (ret) {
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printf("Writing to SUPPLY_REG failed: %d\n", ret);
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return ret;
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}
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/* Set Vcc peripheral to 1.30V */
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ret = pmic_reg_write(p, DA9053_BUCKPRO_REG, 0x62);
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if (ret) {
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printf("Writing to BUCKPRO_REG failed: %d\n", ret);
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return ret;
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}
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ret = pmic_reg_write(p, DA9053_SUPPLY_REG, 0x62);
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if (ret) {
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printf("Writing to SUPPLY_REG failed: %d\n", ret);
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return ret;
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}
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return ret;
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}
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if (!i2c_probe(CONFIG_SYS_FSL_PMIC_I2C_ADDR)) {
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ret = pmic_init(I2C_0);
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if (ret)
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return ret;
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p = pmic_get("FSL_PMIC");
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if (!p)
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return -ENODEV;
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/* Set VDDGP to 1.25V for 1GHz on SW1 */
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pmic_reg_read(p, REG_SW_0, &val);
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val = (val & ~SWx_VOLT_MASK_MC34708) | SWx_1_250V_MC34708;
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ret = pmic_reg_write(p, REG_SW_0, val);
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if (ret) {
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printf("Writing to REG_SW_0 failed: %d\n", ret);
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return ret;
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}
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/* Set VCC as 1.30V on SW2 */
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pmic_reg_read(p, REG_SW_1, &val);
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val = (val & ~SWx_VOLT_MASK_MC34708) | SWx_1_300V_MC34708;
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ret = pmic_reg_write(p, REG_SW_1, val);
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if (ret) {
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printf("Writing to REG_SW_1 failed: %d\n", ret);
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return ret;
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}
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/* Set global reset timer to 4s */
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pmic_reg_read(p, REG_POWER_CTL2, &val);
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val = (val & ~TIMER_MASK_MC34708) | TIMER_4S_MC34708;
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ret = pmic_reg_write(p, REG_POWER_CTL2, val);
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if (ret) {
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printf("Writing to REG_POWER_CTL2 failed: %d\n", ret);
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return ret;
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}
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/* Set VUSBSEL and VUSBEN for USB PHY supply*/
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pmic_reg_read(p, REG_MODE_0, &val);
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val |= (VUSBSEL_MC34708 | VUSBEN_MC34708);
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ret = pmic_reg_write(p, REG_MODE_0, val);
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if (ret) {
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printf("Writing to REG_MODE_0 failed: %d\n", ret);
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return ret;
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}
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/* Set SWBST to 5V in auto mode */
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val = SWBST_AUTO;
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ret = pmic_reg_write(p, SWBST_CTRL, val);
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if (ret) {
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printf("Writing to SWBST_CTRL failed: %d\n", ret);
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return ret;
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}
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return ret;
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}
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return -1;
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}
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static void clock_1GHz(void)
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{
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int ret;
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u32 ref_clk = MXC_HCLK;
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/*
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* After increasing voltage to 1.25V, we can switch
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* CPU clock to 1GHz and DDR to 400MHz safely
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*/
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ret = mxc_set_clock(ref_clk, 1000, MXC_ARM_CLK);
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if (ret)
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printf("CPU: Switch CPU clock to 1GHZ failed\n");
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ret = mxc_set_clock(ref_clk, 400, MXC_PERIPH_CLK);
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ret |= mxc_set_clock(ref_clk, 400, MXC_DDR_CLK);
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if (ret)
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printf("CPU: Switch DDR clock to 400MHz failed\n");
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}
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int board_early_init_f(void)
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{
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setup_iomux_uart();
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setup_iomux_fec();
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setup_iomux_lcd();
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return 0;
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}
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#if defined(CONFIG_DISPLAY_CPUINFO)
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int print_cpuinfo(void)
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{
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u32 cpurev;
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cpurev = get_cpu_rev();
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printf("CPU: Freescale i.MX%x family rev%d.%d at %d MHz\n",
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(cpurev & 0xFF000) >> 12,
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(cpurev & 0x000F0) >> 4,
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(cpurev & 0x0000F) >> 0,
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mxc_get_clock(MXC_ARM_CLK) / 1000000);
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printf("Reset cause: %s\n", get_reset_cause());
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return 0;
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}
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#endif
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/*
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* Do not overwrite the console
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* Use always serial for U-Boot console
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*/
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int overwrite_console(void)
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{
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return 1;
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}
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int board_init(void)
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{
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gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
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mxc_set_sata_internal_clock();
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setup_iomux_i2c();
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return 0;
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}
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int board_late_init(void)
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{
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if (!power_init())
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clock_1GHz();
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print_cpuinfo();
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return 0;
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}
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int checkboard(void)
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{
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puts("Board: MX53 LOCO\n");
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return 0;
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}
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