diff options
Diffstat (limited to 'arch/arm/cpu/armv7')
| -rw-r--r-- | arch/arm/cpu/armv7/am33xx/Makefile | 1 | ||||
| -rw-r--r-- | arch/arm/cpu/armv7/am33xx/board.c | 239 | ||||
| -rw-r--r-- | arch/arm/cpu/armv7/am33xx/clock.c | 6 | ||||
| -rw-r--r-- | arch/arm/cpu/armv7/am33xx/config.mk | 1 | ||||
| -rw-r--r-- | arch/arm/cpu/armv7/am33xx/emif4.c | 114 | ||||
| -rw-r--r-- | arch/arm/cpu/armv7/am33xx/mux.c | 33 | ||||
| -rw-r--r-- | arch/arm/cpu/armv7/omap-common/u-boot-spl.lds | 5 |
7 files changed, 59 insertions, 340 deletions
diff --git a/arch/arm/cpu/armv7/am33xx/Makefile b/arch/arm/cpu/armv7/am33xx/Makefile index 7768912..74875b3 100644 --- a/arch/arm/cpu/armv7/am33xx/Makefile +++ b/arch/arm/cpu/armv7/am33xx/Makefile @@ -21,6 +21,7 @@ COBJS += sys_info.o COBJS += ddr.o COBJS += emif4.o COBJS += board.o +COBJS += mux.o SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c) OBJS := $(addprefix $(obj),$(COBJS) $(COBJS-y) $(SOBJS)) diff --git a/arch/arm/cpu/armv7/am33xx/board.c b/arch/arm/cpu/armv7/am33xx/board.c index 978b184..e4c123c 100644 --- a/arch/arm/cpu/armv7/am33xx/board.c +++ b/arch/arm/cpu/armv7/am33xx/board.c @@ -36,9 +36,6 @@ DECLARE_GLOBAL_DATA_PTR; -struct wd_timer *wdtimer = (struct wd_timer *)WDT_BASE; -struct uart_sys *uart_base = (struct uart_sys *)DEFAULT_UART_BASE; - static const struct gpio_bank gpio_bank_am33xx[4] = { { (void *)AM33XX_GPIO0_BASE, METHOD_GPIO_24XX }, { (void *)AM33XX_GPIO1_BASE, METHOD_GPIO_24XX }, @@ -48,153 +45,11 @@ static const struct gpio_bank gpio_bank_am33xx[4] = { const struct gpio_bank *const omap_gpio_bank = gpio_bank_am33xx; -/* MII mode defines */ -#define MII_MODE_ENABLE 0x0 -#define RGMII_MODE_ENABLE 0xA - -/* GPIO that controls power to DDR on EVM-SK */ -#define GPIO_DDR_VTT_EN 7 - -static struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE; - -static struct am335x_baseboard_id __attribute__((section (".data"))) header; - -static inline int board_is_bone(void) -{ - return !strncmp(header.name, "A335BONE", HDR_NAME_LEN); -} - -static inline int board_is_evm_sk(void) -{ - return !strncmp("A335X_SK", header.name, HDR_NAME_LEN); -} - -/* - * Read header information from EEPROM into global structure. - */ -static int read_eeprom(void) -{ - /* Check if baseboard eeprom is available */ - if (i2c_probe(CONFIG_SYS_I2C_EEPROM_ADDR)) { - puts("Could not probe the EEPROM; something fundamentally " - "wrong on the I2C bus.\n"); - return -ENODEV; - } - - /* read the eeprom using i2c */ - if (i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, 0, 2, (uchar *)&header, - sizeof(header))) { - puts("Could not read the EEPROM; something fundamentally" - " wrong on the I2C bus.\n"); - return -EIO; - } - - if (header.magic != 0xEE3355AA) { - /* - * read the eeprom using i2c again, - * but use only a 1 byte address - */ - if (i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, 0, 1, - (uchar *)&header, sizeof(header))) { - puts("Could not read the EEPROM; something " - "fundamentally wrong on the I2C bus.\n"); - return -EIO; - } - - if (header.magic != 0xEE3355AA) { - printf("Incorrect magic number (0x%x) in EEPROM\n", - header.magic); - return -EINVAL; - } - } - - return 0; -} - -/* UART Defines */ -#ifdef CONFIG_SPL_BUILD -#define UART_RESET (0x1 << 1) -#define UART_CLK_RUNNING_MASK 0x1 -#define UART_SMART_IDLE_EN (0x1 << 0x3) -#endif - -/* - * Determine what type of DDR we have. - */ -static short inline board_memory_type(void) -{ - /* The following boards are known to use DDR3. */ - if (board_is_evm_sk()) - return EMIF_REG_SDRAM_TYPE_DDR3; - - return EMIF_REG_SDRAM_TYPE_DDR2; -} - -/* - * early system init of muxing and clocks. - */ -void s_init(void) -{ - /* WDT1 is already running when the bootloader gets control - * Disable it to avoid "random" resets - */ - writel(0xAAAA, &wdtimer->wdtwspr); - while (readl(&wdtimer->wdtwwps) != 0x0) - ; - writel(0x5555, &wdtimer->wdtwspr); - while (readl(&wdtimer->wdtwwps) != 0x0) - ; - -#ifdef CONFIG_SPL_BUILD - /* Setup the PLLs and the clocks for the peripherals */ - pll_init(); - - /* UART softreset */ - u32 regVal; - - enable_uart0_pin_mux(); - - regVal = readl(&uart_base->uartsyscfg); - regVal |= UART_RESET; - writel(regVal, &uart_base->uartsyscfg); - while ((readl(&uart_base->uartsyssts) & - UART_CLK_RUNNING_MASK) != UART_CLK_RUNNING_MASK) - ; - - /* Disable smart idle */ - regVal = readl(&uart_base->uartsyscfg); - regVal |= UART_SMART_IDLE_EN; - writel(regVal, &uart_base->uartsyscfg); - - gd = &gdata; - - preloader_console_init(); - - /* Initalize the board header */ - enable_i2c0_pin_mux(); - i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE); - if (read_eeprom() < 0) - puts("Could not get board ID.\n"); - - enable_board_pin_mux(&header); - if (board_is_evm_sk()) { - /* - * EVM SK 1.2A and later use gpio0_7 to enable DDR3. - * This is safe enough to do on older revs. - */ - gpio_request(GPIO_DDR_VTT_EN, "ddr_vtt_en"); - gpio_direction_output(GPIO_DDR_VTT_EN, 1); - } - - config_ddr(board_memory_type()); -#endif -} - #if defined(CONFIG_OMAP_HSMMC) && !defined(CONFIG_SPL_BUILD) -int board_mmc_init(bd_t *bis) +int cpu_mmc_init(bd_t *bis) { int ret; - + ret = omap_mmc_init(0, 0, 0); if (ret) return ret; @@ -208,93 +63,3 @@ void setup_clocks_for_console(void) /* Not yet implemented */ return; } - -/* - * Basic board specific setup. Pinmux has been handled already. - */ -int board_init(void) -{ - i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE); - if (read_eeprom() < 0) - puts("Could not get board ID.\n"); - - gd->bd->bi_boot_params = PHYS_DRAM_1 + 0x100; - - return 0; -} - -#ifdef CONFIG_DRIVER_TI_CPSW -static void cpsw_control(int enabled) -{ - /* VTP can be added here */ - - return; -} - -static struct cpsw_slave_data cpsw_slaves[] = { - { - .slave_reg_ofs = 0x208, - .sliver_reg_ofs = 0xd80, - .phy_id = 0, - }, - { - .slave_reg_ofs = 0x308, - .sliver_reg_ofs = 0xdc0, - .phy_id = 1, - }, -}; - -static struct cpsw_platform_data cpsw_data = { - .mdio_base = AM335X_CPSW_MDIO_BASE, - .cpsw_base = AM335X_CPSW_BASE, - .mdio_div = 0xff, - .channels = 8, - .cpdma_reg_ofs = 0x800, - .slaves = 1, - .slave_data = cpsw_slaves, - .ale_reg_ofs = 0xd00, - .ale_entries = 1024, - .host_port_reg_ofs = 0x108, - .hw_stats_reg_ofs = 0x900, - .mac_control = (1 << 5), - .control = cpsw_control, - .host_port_num = 0, - .version = CPSW_CTRL_VERSION_2, -}; - -int board_eth_init(bd_t *bis) -{ - uint8_t mac_addr[6]; - uint32_t mac_hi, mac_lo; - - if (!eth_getenv_enetaddr("ethaddr", mac_addr)) { - debug("<ethaddr> not set. Reading from E-fuse\n"); - /* try reading mac address from efuse */ - mac_lo = readl(&cdev->macid0l); - mac_hi = readl(&cdev->macid0h); - mac_addr[0] = mac_hi & 0xFF; - mac_addr[1] = (mac_hi & 0xFF00) >> 8; - mac_addr[2] = (mac_hi & 0xFF0000) >> 16; - mac_addr[3] = (mac_hi & 0xFF000000) >> 24; - mac_addr[4] = mac_lo & 0xFF; - mac_addr[5] = (mac_lo & 0xFF00) >> 8; - - if (is_valid_ether_addr(mac_addr)) - eth_setenv_enetaddr("ethaddr", mac_addr); - else - return -1; - } - - if (board_is_bone()) { - writel(MII_MODE_ENABLE, &cdev->miisel); - cpsw_slaves[0].phy_if = cpsw_slaves[1].phy_if = - PHY_INTERFACE_MODE_MII; - } else { - writel(RGMII_MODE_ENABLE, &cdev->miisel); - cpsw_slaves[0].phy_if = cpsw_slaves[1].phy_if = - PHY_INTERFACE_MODE_RGMII; - } - - return cpsw_register(&cpsw_data); -} -#endif diff --git a/arch/arm/cpu/armv7/am33xx/clock.c b/arch/arm/cpu/armv7/am33xx/clock.c index 2b19506..f870859 100644 --- a/arch/arm/cpu/armv7/am33xx/clock.c +++ b/arch/arm/cpu/armv7/am33xx/clock.c @@ -44,6 +44,7 @@ const struct cm_perpll *cmper = (struct cm_perpll *)CM_PER; const struct cm_wkuppll *cmwkup = (struct cm_wkuppll *)CM_WKUP; const struct cm_dpll *cmdpll = (struct cm_dpll *)CM_DPLL; +const struct cm_rtc *cmrtc = (struct cm_rtc *)CM_RTC; static void enable_interface_clocks(void) { @@ -153,6 +154,11 @@ static void enable_per_clocks(void) writel(PRCM_MOD_EN, &cmper->spi0clkctrl); while (readl(&cmper->spi0clkctrl) != PRCM_MOD_EN) ; + + /* RTC */ + writel(PRCM_MOD_EN, &cmrtc->rtcclkctrl); + while (readl(&cmrtc->rtcclkctrl) != PRCM_MOD_EN) + ; } static void mpu_pll_config(void) diff --git a/arch/arm/cpu/armv7/am33xx/config.mk b/arch/arm/cpu/armv7/am33xx/config.mk index 5750bbd..babf0eb 100644 --- a/arch/arm/cpu/armv7/am33xx/config.mk +++ b/arch/arm/cpu/armv7/am33xx/config.mk @@ -13,6 +13,7 @@ # ifdef CONFIG_SPL_BUILD ALL-y += $(OBJTREE)/MLO +ALL-$(CONFIG_SPL_SPI_SUPPORT) += $(OBJTREE)/MLO.byteswap else ALL-y += $(obj)u-boot.img endif diff --git a/arch/arm/cpu/armv7/am33xx/emif4.c b/arch/arm/cpu/armv7/am33xx/emif4.c index b2d7c0d..01e3a52 100644 --- a/arch/arm/cpu/armv7/am33xx/emif4.c +++ b/arch/arm/cpu/armv7/am33xx/emif4.c @@ -47,78 +47,6 @@ void dram_init_banksize(void) static struct vtp_reg *vtpreg = (struct vtp_reg *)VTP0_CTRL_ADDR; static struct ddr_ctrl *ddrctrl = (struct ddr_ctrl *)DDR_CTRL_ADDR; -static const struct ddr_data ddr2_data = { - .datardsratio0 = ((DDR2_RD_DQS<<30)|(DDR2_RD_DQS<<20) - |(DDR2_RD_DQS<<10)|(DDR2_RD_DQS<<0)), - .datawdsratio0 = ((DDR2_WR_DQS<<30)|(DDR2_WR_DQS<<20) - |(DDR2_WR_DQS<<10)|(DDR2_WR_DQS<<0)), - .datawiratio0 = ((DDR2_PHY_WRLVL<<30)|(DDR2_PHY_WRLVL<<20) - |(DDR2_PHY_WRLVL<<10)|(DDR2_PHY_WRLVL<<0)), - .datagiratio0 = ((DDR2_PHY_GATELVL<<30)|(DDR2_PHY_GATELVL<<20) - |(DDR2_PHY_GATELVL<<10)|(DDR2_PHY_GATELVL<<0)), - .datafwsratio0 = ((DDR2_PHY_FIFO_WE<<30)|(DDR2_PHY_FIFO_WE<<20) - |(DDR2_PHY_FIFO_WE<<10)|(DDR2_PHY_FIFO_WE<<0)), - .datawrsratio0 = ((DDR2_PHY_WR_DATA<<30)|(DDR2_PHY_WR_DATA<<20) - |(DDR2_PHY_WR_DATA<<10)|(DDR2_PHY_WR_DATA<<0)), - .datauserank0delay = DDR2_PHY_RANK0_DELAY, - .datadldiff0 = PHY_DLL_LOCK_DIFF, -}; - -static const struct cmd_control ddr2_cmd_ctrl_data = { - .cmd0csratio = DDR2_RATIO, - .cmd0dldiff = DDR2_DLL_LOCK_DIFF, - .cmd0iclkout = DDR2_INVERT_CLKOUT, - - .cmd1csratio = DDR2_RATIO, - .cmd1dldiff = DDR2_DLL_LOCK_DIFF, - .cmd1iclkout = DDR2_INVERT_CLKOUT, - - .cmd2csratio = DDR2_RATIO, - .cmd2dldiff = DDR2_DLL_LOCK_DIFF, - .cmd2iclkout = DDR2_INVERT_CLKOUT, -}; - -static const struct emif_regs ddr2_emif_reg_data = { - .sdram_config = DDR2_EMIF_SDCFG, - .ref_ctrl = DDR2_EMIF_SDREF, - .sdram_tim1 = DDR2_EMIF_TIM1, - .sdram_tim2 = DDR2_EMIF_TIM2, - .sdram_tim3 = DDR2_EMIF_TIM3, - .emif_ddr_phy_ctlr_1 = DDR2_EMIF_READ_LATENCY, -}; - -static const struct ddr_data ddr3_data = { - .datardsratio0 = DDR3_RD_DQS, - .datawdsratio0 = DDR3_WR_DQS, - .datafwsratio0 = DDR3_PHY_FIFO_WE, - .datawrsratio0 = DDR3_PHY_WR_DATA, - .datadldiff0 = PHY_DLL_LOCK_DIFF, -}; - -static const struct cmd_control ddr3_cmd_ctrl_data = { - .cmd0csratio = DDR3_RATIO, - .cmd0dldiff = DDR3_DLL_LOCK_DIFF, - .cmd0iclkout = DDR3_INVERT_CLKOUT, - - .cmd1csratio = DDR3_RATIO, - .cmd1dldiff = DDR3_DLL_LOCK_DIFF, - .cmd1iclkout = DDR3_INVERT_CLKOUT, - - .cmd2csratio = DDR3_RATIO, - .cmd2dldiff = DDR3_DLL_LOCK_DIFF, - .cmd2iclkout = DDR3_INVERT_CLKOUT, -}; - -static struct emif_regs ddr3_emif_reg_data = { - .sdram_config = DDR3_EMIF_SDCFG, - .ref_ctrl = DDR3_EMIF_SDREF, - .sdram_tim1 = DDR3_EMIF_TIM1, - .sdram_tim2 = DDR3_EMIF_TIM2, - .sdram_tim3 = DDR3_EMIF_TIM3, - .zq_config = DDR3_ZQ_CFG, - .emif_ddr_phy_ctlr_1 = DDR3_EMIF_READ_LATENCY, -}; - static void config_vtp(void) { writel(readl(&vtpreg->vtp0ctrlreg) | VTP_CTRL_ENABLE, @@ -134,46 +62,26 @@ static void config_vtp(void) ; } -void config_ddr(short ddr_type) +void config_ddr(unsigned int pll, unsigned int ioctrl, + const struct ddr_data *data, const struct cmd_control *ctrl, + const struct emif_regs *regs) { - int ddr_pll, ioctrl_val; - const struct emif_regs *emif_regs; - const struct ddr_data *ddr_data; - const struct cmd_control *cmd_ctrl_data; - - if (ddr_type == EMIF_REG_SDRAM_TYPE_DDR2) { - ddr_pll = 266; - cmd_ctrl_data = &ddr2_cmd_ctrl_data; - ddr_data = &ddr2_data; - ioctrl_val = DDR2_IOCTRL_VALUE; - emif_regs = &ddr2_emif_reg_data; - } else if (ddr_type == EMIF_REG_SDRAM_TYPE_DDR3) { - ddr_pll = 303; - cmd_ctrl_data = &ddr3_cmd_ctrl_data; - ddr_data = &ddr3_data; - ioctrl_val = DDR3_IOCTRL_VALUE; - emif_regs = &ddr3_emif_reg_data; - } else { - puts("Unknown memory type"); - hang(); - } - enable_emif_clocks(); - ddr_pll_config(ddr_pll); + ddr_pll_config(pll); config_vtp(); - config_cmd_ctrl(cmd_ctrl_data); + config_cmd_ctrl(ctrl); - config_ddr_data(0, ddr_data); - config_ddr_data(1, ddr_data); + config_ddr_data(0, data); + config_ddr_data(1, data); - config_io_ctrl(ioctrl_val); + config_io_ctrl(ioctrl); /* Set CKE to be controlled by EMIF/DDR PHY */ writel(DDR_CKE_CTRL_NORMAL, &ddrctrl->ddrckectrl); /* Program EMIF instance */ - config_ddr_phy(emif_regs); - set_sdram_timings(emif_regs); - config_sdram(emif_regs); + config_ddr_phy(regs); + set_sdram_timings(regs); + config_sdram(regs); } #endif diff --git a/arch/arm/cpu/armv7/am33xx/mux.c b/arch/arm/cpu/armv7/am33xx/mux.c new file mode 100644 index 0000000..2ded472 --- /dev/null +++ b/arch/arm/cpu/armv7/am33xx/mux.c @@ -0,0 +1,33 @@ +/* + * mux.c + * + * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/ + * + * 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 version 2. + * + * This program is distributed "as is" WITHOUT ANY WARRANTY of any + * kind, whether express or implied; without even the implied warranty + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <common.h> +#include <asm/arch/mux.h> +#include <asm/arch/hardware.h> +#include <asm/io.h> + +/* + * Configure the pin mux for the module + */ +void configure_module_pin_mux(struct module_pin_mux *mod_pin_mux) +{ + int i; + + if (!mod_pin_mux) + return; + + for (i = 0; mod_pin_mux[i].reg_offset != -1; i++) + MUX_CFG(mod_pin_mux[i].val, mod_pin_mux[i].reg_offset); +} diff --git a/arch/arm/cpu/armv7/omap-common/u-boot-spl.lds b/arch/arm/cpu/armv7/omap-common/u-boot-spl.lds index 1d8efb2..9979c30 100644 --- a/arch/arm/cpu/armv7/omap-common/u-boot-spl.lds +++ b/arch/arm/cpu/armv7/omap-common/u-boot-spl.lds @@ -47,6 +47,11 @@ SECTIONS . = ALIGN(4); .data : { *(SORT_BY_ALIGNMENT(.data*)) } >.sram + + .u_boot_list : { + #include <u-boot.lst> + } + . = ALIGN(4); __image_copy_end = .; _end = .; |