mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-18 02:38:56 +00:00
8b7962a349
Move firewall related code to new firewall.c, to share code in Stratix 10 and Agilex. SDMMC will transfer data to OCRAM in SPL. So, enable privilege for SDMMC to allow DMA transfer to OCRAM. Signed-off-by: Ley Foon Tan <ley.foon.tan@intel.com> Reviewed-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
107 lines
3.2 KiB
C
107 lines
3.2 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (C) 2016-2019 Intel Corporation <www.intel.com>
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*
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*/
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#include <asm/io.h>
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#include <common.h>
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#include <asm/arch/firewall.h>
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#include <asm/arch/system_manager.h>
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static void firewall_l4_per_disable(void)
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{
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const struct socfpga_firwall_l4_per *firwall_l4_per_base =
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(struct socfpga_firwall_l4_per *)SOCFPGA_FIREWALL_L4_PER;
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u32 i;
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const u32 *addr[] = {
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&firwall_l4_per_base->nand,
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&firwall_l4_per_base->nand_data,
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&firwall_l4_per_base->usb0,
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&firwall_l4_per_base->usb1,
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&firwall_l4_per_base->spim0,
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&firwall_l4_per_base->spim1,
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&firwall_l4_per_base->emac0,
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&firwall_l4_per_base->emac1,
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&firwall_l4_per_base->emac2,
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&firwall_l4_per_base->sdmmc,
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&firwall_l4_per_base->gpio0,
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&firwall_l4_per_base->gpio1,
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&firwall_l4_per_base->i2c0,
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&firwall_l4_per_base->i2c1,
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&firwall_l4_per_base->i2c2,
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&firwall_l4_per_base->i2c3,
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&firwall_l4_per_base->i2c4,
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&firwall_l4_per_base->timer0,
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&firwall_l4_per_base->timer1,
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&firwall_l4_per_base->uart0,
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&firwall_l4_per_base->uart1
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};
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/*
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* The following lines of code will enable non-secure access
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* to nand, usb, spi, emac, sdmmc, gpio, i2c, timers and uart. This
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* is needed as most OS run in non-secure mode. Thus we need to
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* enable non-secure access to these peripherals in order for the
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* OS to use these peripherals.
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*/
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for (i = 0; i < ARRAY_SIZE(addr); i++)
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writel(FIREWALL_L4_DISABLE_ALL, addr[i]);
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}
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static void firewall_l4_sys_disable(void)
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{
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const struct socfpga_firwall_l4_sys *firwall_l4_sys_base =
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(struct socfpga_firwall_l4_sys *)SOCFPGA_FIREWALL_L4_SYS;
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u32 i;
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const u32 *addr[] = {
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&firwall_l4_sys_base->dma_ecc,
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&firwall_l4_sys_base->emac0rx_ecc,
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&firwall_l4_sys_base->emac0tx_ecc,
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&firwall_l4_sys_base->emac1rx_ecc,
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&firwall_l4_sys_base->emac1tx_ecc,
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&firwall_l4_sys_base->emac2rx_ecc,
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&firwall_l4_sys_base->emac2tx_ecc,
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&firwall_l4_sys_base->nand_ecc,
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&firwall_l4_sys_base->nand_read_ecc,
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&firwall_l4_sys_base->nand_write_ecc,
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&firwall_l4_sys_base->ocram_ecc,
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&firwall_l4_sys_base->sdmmc_ecc,
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&firwall_l4_sys_base->usb0_ecc,
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&firwall_l4_sys_base->usb1_ecc,
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&firwall_l4_sys_base->clock_manager,
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&firwall_l4_sys_base->io_manager,
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&firwall_l4_sys_base->reset_manager,
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&firwall_l4_sys_base->system_manager,
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&firwall_l4_sys_base->watchdog0,
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&firwall_l4_sys_base->watchdog1,
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&firwall_l4_sys_base->watchdog2,
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&firwall_l4_sys_base->watchdog3
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};
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for (i = 0; i < ARRAY_SIZE(addr); i++)
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writel(FIREWALL_L4_DISABLE_ALL, addr[i]);
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}
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static void firewall_bridge_disable(void)
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{
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/* disable lwsocf2fpga and soc2fpga bridge security */
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writel(FIREWALL_BRIDGE_DISABLE_ALL, SOCFPGA_FIREWALL_SOC2FPGA);
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writel(FIREWALL_BRIDGE_DISABLE_ALL, SOCFPGA_FIREWALL_LWSOC2FPGA);
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}
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void firewall_setup(void)
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{
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firewall_l4_per_disable();
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firewall_l4_sys_disable();
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firewall_bridge_disable();
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/* disable SMMU security */
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writel(FIREWALL_L4_DISABLE_ALL, SOCFPGA_FIREWALL_TCU);
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/* enable non-secure interface to DMA330 DMA and peripherals */
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writel(SYSMGR_DMA_IRQ_NS | SYSMGR_DMA_MGR_NS,
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socfpga_get_sysmgr_addr() + SYSMGR_S10_DMA);
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writel(SYSMGR_DMAPERIPH_ALL_NS,
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socfpga_get_sysmgr_addr() + SYSMGR_S10_DMA_PERIPH);
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}
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