From: Tien Fong Chee tien.fong.chee@intel.com
Add arch_early_init_r function. The Arria10 has a firewall protection around the SDRAM and OCRAM. These firewalls are to be disabled in order for U-Boot to function.
Signed-off-by: Dinh Nguyen dinguyen@opensource.altera.com Signed-off-by: Tien Fong Chee tien.fong.chee@intel.com Cc: Marek Vasut marex@denx.de Cc: Dinh Nguyen dinguyen@kernel.org Cc: Chin Liang See chin.liang.see@intel.com Cc: Tien Fong skywindctf@gmail.com --- arch/arm/mach-socfpga/misc.c | 51 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 51 insertions(+)
diff --git a/arch/arm/mach-socfpga/misc.c b/arch/arm/mach-socfpga/misc.c index dd6b53b..c1e5969 100644 --- a/arch/arm/mach-socfpga/misc.c +++ b/arch/arm/mach-socfpga/misc.c @@ -15,6 +15,7 @@ #include <watchdog.h> #include <asm/arch/reset_manager.h> #include <asm/arch/scan_manager.h> +#include <asm/arch/sdram_a10.h> #include <asm/arch/system_manager.h> #include <asm/arch/nic301.h> #include <asm/arch/scu.h> @@ -30,8 +31,15 @@ static struct socfpga_system_manager *sysmgr_regs = (struct socfpga_system_manager *)SOCFPGA_SYSMGR_ADDRESS; static struct socfpga_reset_manager *reset_manager_base = (struct socfpga_reset_manager *)SOCFPGA_RSTMGR_ADDRESS; +#if defined(CONFIG_TARGET_SOCFPGA_GEN5) static struct nic301_registers *nic301_regs = (struct nic301_registers *)SOCFPGA_L3REGS_ADDRESS; +#else +static const struct socfpga_noc_fw_ocram *noc_fw_ocram_base = + (void *)SOCFPGA_SDR_FIREWALL_OCRAM_ADDRESS; +static const struct socfpga_noc_fw_ddr_l3 *noc_fw_ddr_l3_base = + (void *)SOCFPGA_SDR_FIREWALL_L3_ADDRESS; +#endif static struct scu_registers *scu_regs = (struct scu_registers *)SOCFPGA_MPUSCU_ADDRESS;
@@ -253,9 +261,14 @@ static int socfpga_fpga_id(const bool print_id) #if defined(CONFIG_DISPLAY_CPUINFO) int print_cpuinfo(void) { +#if defined(CONFIG_TARGET_SOCFPGA_GEN5) const u32 bsel = readl(&sysmgr_regs->bootinfo) & 0x7; puts("CPU: Altera SoCFPGA Platform\n"); socfpga_fpga_id(1); +#else + const u32 bsel = (readl(&sysmgr_regs->bootinfo) >> 12) & 0x7; + puts("CPU: Altera SoCFPGA Arria 10\n"); +#endif printf("BOOT: %s\n", bsel_str[bsel].name); return 0; } @@ -338,6 +351,7 @@ int arch_cpu_init(void) return 0; }
+#if defined(CONFIG_TARGET_SOCFPGA_GEN5) /* * Convert all NIC-301 AMBA slaves from secure to non-secure */ @@ -461,6 +475,43 @@ int do_bridge(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
return 0; } +#else +/* ++ * This function initializes security policies to be consistent across ++ * all logic units in the Arria 10. ++ * ++ * The idea is to set all security policies to be normal, nonsecure ++ * for all units. ++ */ +static void initialize_security_policies(void) +{ + /* Put OCRAM in non-secure */ + writel(0x003f0000, &noc_fw_ocram_base->region0); + writel(0x1, &noc_fw_ocram_base->enable); + + /* Put DDR in non-secure */ + writel(0xffff0000, &noc_fw_ddr_l3_base->hpsregion0addr); + writel(0x1, &noc_fw_ddr_l3_base->enable); +} + +int arch_early_init_r(void) +{ + initialize_security_policies(); + + /* Configure the L2 controller to make SDRAM start at 0 */ + writel(0x1, &pl310->pl310_addr_filter_start); + + /* assert reset to all except L4WD0 and L4TIMER0 */ + socfpga_per_reset_all(); + + /* configuring the clock based on handoff */ + /* TODO: Add call to cm_basic_init() */ + + /* Add device descriptor to FPGA device table */ + socfpga_fpga_add(); + return 0; +} +#endif
U_BOOT_CMD( bridge, 2, 1, do_bridge,