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author | Tom Rini <trini@konsulko.com> | 2015-04-28 20:48:43 -0400 |
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committer | Tom Rini <trini@konsulko.com> | 2015-04-28 20:48:43 -0400 |
commit | 536266231a340c0c5e571e1012bf3f8fc835b251 (patch) | |
tree | 0b0284f73aa8f9f5608fdbc74a238efc4f8d1d23 /arch/arm/cpu/armv7/socfpga/spl.c | |
parent | 4842c58990ac065c2d33b71e1a7fde48f336dac2 (diff) | |
parent | e5c57eea4f4ac8c27343bde137b069ef816e69d7 (diff) | |
download | u-boot-imx-536266231a340c0c5e571e1012bf3f8fc835b251.zip u-boot-imx-536266231a340c0c5e571e1012bf3f8fc835b251.tar.gz u-boot-imx-536266231a340c0c5e571e1012bf3f8fc835b251.tar.bz2 |
Merge branch 'master' of git://www.denx.de/git/u-boot-socfpga
Diffstat (limited to 'arch/arm/cpu/armv7/socfpga/spl.c')
-rw-r--r-- | arch/arm/cpu/armv7/socfpga/spl.c | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv7/socfpga/spl.c b/arch/arm/cpu/armv7/socfpga/spl.c index 6a8c15d..f994658 100644 --- a/arch/arm/cpu/armv7/socfpga/spl.c +++ b/arch/arm/cpu/armv7/socfpga/spl.c @@ -6,6 +6,7 @@ #include <common.h> #include <asm/io.h> +#include <asm/pl310.h> #include <asm/u-boot.h> #include <asm/utils.h> #include <image.h> @@ -15,9 +16,13 @@ #include <asm/arch/freeze_controller.h> #include <asm/arch/clock_manager.h> #include <asm/arch/scan_manager.h> +#include <asm/arch/sdram.h> DECLARE_GLOBAL_DATA_PTR; +static struct pl310_regs *const pl310 = + (struct pl310_regs *)CONFIG_SYS_PL310_BASE; + #define MAIN_VCO_BASE ( \ (CONFIG_HPS_MAINPLLGRP_VCO_DENOM << \ CLKMGR_MAINPLLGRP_VCO_DENOM_OFFSET) | \ @@ -43,6 +48,31 @@ DECLARE_GLOBAL_DATA_PTR; CLKMGR_SDRPLLGRP_VCO_NUMER_OFFSET) \ ) +void board_init_f(ulong dummy) +{ + struct socfpga_system_manager *sysmgr_regs = + (struct socfpga_system_manager *)SOCFPGA_SYSMGR_ADDRESS; + unsigned long reg; + /* + * First C code to run. Clear fake OCRAM ECC first as SBE + * and DBE might triggered during power on + */ + reg = readl(&sysmgr_regs->eccgrp_ocram); + if (reg & SYSMGR_ECC_OCRAM_SERR) + writel(SYSMGR_ECC_OCRAM_SERR | SYSMGR_ECC_OCRAM_EN, + &sysmgr_regs->eccgrp_ocram); + if (reg & SYSMGR_ECC_OCRAM_DERR) + writel(SYSMGR_ECC_OCRAM_DERR | SYSMGR_ECC_OCRAM_EN, + &sysmgr_regs->eccgrp_ocram); + + memset(__bss_start, 0, __bss_end - __bss_start); + + /* Remap SDRAM to 0x0 */ + writel(0x1, &pl310->pl310_addr_filter_start); + + board_init_r(NULL, 0); +} + u32 spl_boot_device(void) { return BOOT_DEVICE_RAM; @@ -53,6 +83,7 @@ u32 spl_boot_device(void) */ void spl_board_init(void) { + unsigned long sdram_size; #ifndef CONFIG_SOCFPGA_VIRTUAL_TARGET cm_config_t cm_default_cfg = { /* main group */ @@ -144,10 +175,19 @@ void spl_board_init(void) /* freeze all IO banks */ sys_mgr_frzctrl_freeze_req(); + socfpga_sdram_enable(); + socfpga_uart0_enable(); + socfpga_osc1timer_enable(); + + timer_init(); + debug("Reconfigure Clock Manager\n"); /* reconfigure the PLLs */ cm_basic_init(&cm_default_cfg); + /* Enable bootrom to configure IOs. */ + sysmgr_enable_warmrstcfgio(); + /* configure the IOCSR / IO buffer settings */ if (scan_mgr_configure_iocsr()) hang(); @@ -165,4 +205,25 @@ void spl_board_init(void) /* enable console uart printing */ preloader_console_init(); + + if (sdram_mmr_init_full(0xffffffff) != 0) { + puts("SDRAM init failed.\n"); + hang(); + } + + debug("SDRAM: Calibrating PHY\n"); + /* SDRAM calibration */ + if (sdram_calibration_full() == 0) { + puts("SDRAM calibration failed.\n"); + hang(); + } + + sdram_size = sdram_calculate_size(); + debug("SDRAM: %ld MiB\n", sdram_size >> 20); + + /* Sanity check ensure correct SDRAM size specified */ + if (get_ram_size(0, sdram_size) != sdram_size) { + puts("SDRAM size check failed!\n"); + hang(); + } } |