From e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb Mon Sep 17 00:00:00 2001 From: Yang Zhang Date: Fri, 28 Aug 2015 09:58:54 +0800 Subject: Add qemu 2.4.0 Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5 Signed-off-by: Yang Zhang --- qemu/roms/u-boot/board/CarMediaLab/flea3/Makefile | 10 + qemu/roms/u-boot/board/CarMediaLab/flea3/flea3.c | 278 +++++++++++++++++++++ .../u-boot/board/CarMediaLab/flea3/lowlevel_init.S | 25 ++ 3 files changed, 313 insertions(+) create mode 100644 qemu/roms/u-boot/board/CarMediaLab/flea3/Makefile create mode 100644 qemu/roms/u-boot/board/CarMediaLab/flea3/flea3.c create mode 100644 qemu/roms/u-boot/board/CarMediaLab/flea3/lowlevel_init.S (limited to 'qemu/roms/u-boot/board/CarMediaLab') diff --git a/qemu/roms/u-boot/board/CarMediaLab/flea3/Makefile b/qemu/roms/u-boot/board/CarMediaLab/flea3/Makefile new file mode 100644 index 000000000..f34be748c --- /dev/null +++ b/qemu/roms/u-boot/board/CarMediaLab/flea3/Makefile @@ -0,0 +1,10 @@ +# +# Copyright (C) 2007, Guennadi Liakhovetski +# +# (C) Copyright 2008-2009 Freescale Semiconductor, Inc. +# +# SPDX-License-Identifier: GPL-2.0+ +# + +obj-y := flea3.o +obj-y += lowlevel_init.o diff --git a/qemu/roms/u-boot/board/CarMediaLab/flea3/flea3.c b/qemu/roms/u-boot/board/CarMediaLab/flea3/flea3.c new file mode 100644 index 000000000..7f5cfc806 --- /dev/null +++ b/qemu/roms/u-boot/board/CarMediaLab/flea3/flea3.c @@ -0,0 +1,278 @@ +/* + * Copyright (C) 2007, Guennadi Liakhovetski + * + * (C) Copyright 2008-2010 Freescale Semiconductor, Inc. + * + * Copyright (C) 2011, Stefano Babic + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#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 +#define ESDCTL_0x92220000 0x92220000 +#define ESDCTL_0xA2220000 0xA2220000 +#define ESDCTL_0xB2220000 0xB2220000 +#define ESDCTL_0x82228080 0x82228080 +#define ESDCTL_DDR2_EMR2 0x04000000 +#define ESDCTL_DDR2_EMR3 0x06000000 +#define ESDCTL_PRECHARGE 0x00000400 +#define ESDCTL_DDR2_EN_DLL 0x02000400 +#define ESDCTL_DDR2_RESET_DLL 0x00000333 +#define ESDCTL_DDR2_MR 0x00000233 +#define ESDCTL_DDR2_OCD_DEFAULT 0x02000780 +#define ESDCTL_DELAY_LINE5 0x00F49F00 + +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_bank(u32 start_address) + +{ + struct esdc_regs *esdc = (struct esdc_regs *)ESDCTL_BASE_ADDR; + u32 *cfg_reg, *ctl_reg; + u32 val; + + switch (start_address) { + case CSD0_BASE_ADDR: + cfg_reg = &esdc->esdcfg0; + ctl_reg = &esdc->esdctl0; + break; + case CSD1_BASE_ADDR: + cfg_reg = &esdc->esdcfg1; + ctl_reg = &esdc->esdctl1; + break; + default: + return; + } + + /* Initialize MISC register for DDR2 */ + val = ESDC_MISC_RST | ESDC_MISC_MDDR_EN | ESDC_MISC_MDDR_DL_RST | + ESDC_MISC_DDR_EN | ESDC_MISC_DDR2_EN; + writel(val, &esdc->esdmisc); + val &= ~(ESDC_MISC_RST | ESDC_MISC_MDDR_DL_RST); + writel(val, &esdc->esdmisc); + + /* + * according to DDR2 specs, wait a while before + * the PRECHARGE_ALL command + */ + dram_wait(0x20000); + + /* Load DDR2 config and timing */ + writel(ESDCTL_DDR2_CONFIG, cfg_reg); + + /* Precharge ALL */ + writel(ESDCTL_0x92220000, + ctl_reg); + writel(0xda, start_address + ESDCTL_PRECHARGE); + + /* Load mode */ + writel(ESDCTL_0xB2220000, + ctl_reg); + writeb(0xda, start_address + ESDCTL_DDR2_EMR2); /* EMRS2 */ + writeb(0xda, start_address + ESDCTL_DDR2_EMR3); /* EMRS3 */ + writeb(0xda, start_address + ESDCTL_DDR2_EN_DLL); /* Enable DLL */ + writeb(0xda, start_address + ESDCTL_DDR2_RESET_DLL); /* Reset DLL */ + + /* Precharge ALL */ + writel(ESDCTL_0x92220000, + ctl_reg); + writel(0xda, start_address + ESDCTL_PRECHARGE); + + /* Set mode auto refresh : at least two refresh are required */ + writel(ESDCTL_0xA2220000, + ctl_reg); + writel(0xda, start_address); + writel(0xda, start_address); + + writel(ESDCTL_0xB2220000, + ctl_reg); + writeb(0xda, start_address + ESDCTL_DDR2_MR); + writeb(0xda, start_address + ESDCTL_DDR2_OCD_DEFAULT); + + /* OCD mode exit */ + writeb(0xda, start_address + ESDCTL_DDR2_EN_DLL); /* Enable DLL */ + + /* Set normal mode */ + writel(ESDCTL_0x82228080, + ctl_reg); + + dram_wait(0x20000); + + /* Do not set delay lines, only for MDDR */ +} + +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); + + board_setup_sdram_bank(CSD0_BASE_ADDR); +} + +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, + }; + + /* 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; + + return 0; +} + +u32 get_board_rev(void) +{ + int rev = 0; + + return (get_cpu_rev() & ~(0xF << 8)) | (rev & 0xF) << 8; +} diff --git a/qemu/roms/u-boot/board/CarMediaLab/flea3/lowlevel_init.S b/qemu/roms/u-boot/board/CarMediaLab/flea3/lowlevel_init.S new file mode 100644 index 000000000..a9b7c1b68 --- /dev/null +++ b/qemu/roms/u-boot/board/CarMediaLab/flea3/lowlevel_init.S @@ -0,0 +1,25 @@ +/* + * Copyright (C) 2007, Guennadi Liakhovetski + * + * (C) Copyright 2008-2010 Freescale Semiconductor, Inc. + * + * Copyright (C) 2011, Stefano Babic + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include +#include + +.globl lowlevel_init +lowlevel_init: + + core_init + + init_aips + + init_max + + init_m3if + + mov pc, lr -- cgit 1.2.3-korg