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arm: socfpga: spl: Configure SCU and NIC-301 early
Configure the ARM SCU and NIC301 very early. The ARM SCU SNSAC register must be configured, so we can access all peripherals. The NIC-301 must be configured so that the BootROM is not mapped into the SDRAM address space. Signed-off-by: Marek Vasut <marex@denx.de>
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1 changed files with 22 additions and 0 deletions
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@ -17,11 +17,27 @@
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#include <asm/arch/clock_manager.h>
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#include <asm/arch/scan_manager.h>
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#include <asm/arch/sdram.h>
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#include <asm/arch/scu.h>
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#include <asm/arch/nic301.h>
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DECLARE_GLOBAL_DATA_PTR;
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static struct pl310_regs *const pl310 =
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(struct pl310_regs *)CONFIG_SYS_PL310_BASE;
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static struct scu_registers *scu_regs =
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(struct scu_registers *)SOCFPGA_MPUSCU_ADDRESS;
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static struct nic301_registers *nic301_regs =
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(struct nic301_registers *)SOCFPGA_L3REGS_ADDRESS;
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static void socfpga_nic301_slave_ns(void)
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{
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writel(0x1, &nic301_regs->lwhps2fpgaregs);
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writel(0x1, &nic301_regs->hps2fpgaregs);
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writel(0x1, &nic301_regs->acp);
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writel(0x1, &nic301_regs->rom);
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writel(0x1, &nic301_regs->ocram);
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writel(0x1, &nic301_regs->sdrdata);
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}
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void board_init_f(ulong dummy)
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{
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@ -42,7 +58,13 @@ void board_init_f(ulong dummy)
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memset(__bss_start, 0, __bss_end - __bss_start);
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socfpga_nic301_slave_ns();
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/* Configure ARM MPU SNSAC register. */
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setbits_le32(&scu_regs->sacr, 0xfff);
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/* Remap SDRAM to 0x0 */
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writel(0x1, &nic301_regs->remap); /* remap.mpuzero */
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writel(0x1, &pl310->pl310_addr_filter_start);
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board_init_r(NULL, 0);
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