Push old Amlogic BL2 sourcesHEADmaster

1 files changed, 252 insertions, 0 deletions

diff --git a/plat/juno/bl1_plat_setup.c b/plat/juno/bl1_plat_setup.c
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+++ b/plat/juno/bl1_plat_setup.c
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+/*
+ * Copyright (c) 2013-2014, ARM Limited and Contributors. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * Neither the name of ARM nor the names of its contributors may be used
+ * to endorse or promote products derived from this software without specific
+ * prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <arch_helpers.h>
+#include <assert.h>
+#include <bl_common.h>
+#include <cci400.h>
+#include <console.h>
+#include <mmio.h>
+#include <platform.h>
+#include <platform_def.h>
+#include <tzc400.h>
+#include "juno_def.h"
+#include "juno_private.h"
+
+/*******************************************************************************
+ * Declarations of linker defined symbols which will help us find the layout
+ * of trusted RAM
+ ******************************************************************************/
+extern unsigned long __COHERENT_RAM_START__;
+extern unsigned long __COHERENT_RAM_END__;
+
+extern unsigned long __BL1_RAM_START__;
+extern unsigned long __BL1_RAM_END__;
+
+/*
+ * The next 2 constants identify the extents of the coherent memory region.
+ * These addresses are used by the MMU setup code and therefore they must be
+ * page-aligned.  It is the responsibility of the linker script to ensure that
+ * __COHERENT_RAM_START__ and __COHERENT_RAM_END__ linker symbols refer to
+ * page-aligned addresses.
+ */
+#define BL1_COHERENT_RAM_BASE (unsigned long)(&__COHERENT_RAM_START__)
+#define BL1_COHERENT_RAM_LIMIT (unsigned long)(&__COHERENT_RAM_END__)
+
+#define BL1_RAM_BASE (unsigned long)(&__BL1_RAM_START__)
+#define BL1_RAM_LIMIT (unsigned long)(&__BL1_RAM_END__)
+
+
+/* Data structure which holds the extents of the trusted RAM for BL1 */
+static meminfo_t bl1_tzram_layout;
+
+meminfo_t *bl1_plat_sec_mem_layout(void)
+{
+	return &bl1_tzram_layout;
+}
+
+/*******************************************************************************
+ * Perform any BL1 specific platform actions.
+ ******************************************************************************/
+void bl1_early_platform_setup(void)
+{
+	const unsigned long bl1_ram_base = BL1_RAM_BASE;
+	const unsigned long bl1_ram_limit = BL1_RAM_LIMIT;
+	const unsigned long tzram_limit = TZRAM_BASE + TZRAM_SIZE;
+
+	/* Initialize the console to provide early debug support */
+	console_init(PL011_UART0_BASE);
+
+	/*
+	 * Calculate how much ram is BL1 using & how much remains free.
+	 * This also includes a rudimentary mechanism to detect whether
+	 * the BL1 data is loaded at the top or bottom of memory.
+	 * TODO: add support for discontigous chunks of free ram if
+	 *       needed. Might need dynamic memory allocation support
+	 *       et al.
+	 */
+	bl1_tzram_layout.total_base = TZRAM_BASE;
+	bl1_tzram_layout.total_size = TZRAM_SIZE;
+
+	if (bl1_ram_limit == tzram_limit) {
+		/* BL1 has been loaded at the top of memory. */
+		bl1_tzram_layout.free_base = TZRAM_BASE;
+		bl1_tzram_layout.free_size = bl1_ram_base - TZRAM_BASE;
+	} else {
+		/* BL1 has been loaded at the bottom of memory. */
+		bl1_tzram_layout.free_base = bl1_ram_limit;
+		bl1_tzram_layout.free_size =
+			tzram_limit - bl1_ram_limit;
+	}
+}
+
+
+/*
+ * Address of slave 'n' security setting in the NIC-400 address region
+ * control
+ * TODO: Ideally this macro should be moved in a "nic-400.h" header file but
+ * it would be the only thing in there so it's not worth it at the moment.
+ */
+#define NIC400_ADDR_CTRL_SECURITY_REG(n)	(0x8 + (n) * 4)
+
+static void init_nic400(void)
+{
+	/*
+	 * NIC-400 Access Control Initialization
+	 *
+	 * Define access privileges by setting each corresponding bit to:
+	 *   0 = Secure access only
+	 *   1 = Non-secure access allowed
+	 */
+
+	/*
+	 * Allow non-secure access to some SOC regions, excluding UART1, which
+	 * remains secure.
+	 * Note: This is the NIC-400 device on the SOC
+	 */
+	mmio_write_32(SOC_NIC400_BASE +
+		      NIC400_ADDR_CTRL_SECURITY_REG(SOC_NIC400_USB_EHCI), ~0);
+	mmio_write_32(SOC_NIC400_BASE +
+		      NIC400_ADDR_CTRL_SECURITY_REG(SOC_NIC400_TLX_MASTER), ~0);
+	mmio_write_32(SOC_NIC400_BASE +
+		      NIC400_ADDR_CTRL_SECURITY_REG(SOC_NIC400_USB_OHCI), ~0);
+	mmio_write_32(SOC_NIC400_BASE +
+		      NIC400_ADDR_CTRL_SECURITY_REG(SOC_NIC400_PL354_SMC), ~0);
+	mmio_write_32(SOC_NIC400_BASE +
+		      NIC400_ADDR_CTRL_SECURITY_REG(SOC_NIC400_APB4_BRIDGE), ~0);
+	mmio_write_32(SOC_NIC400_BASE +
+		      NIC400_ADDR_CTRL_SECURITY_REG(SOC_NIC400_BOOTSEC_BRIDGE),
+		      ~SOC_NIC400_BOOTSEC_BRIDGE_UART1);
+
+	/*
+	 * Allow non-secure access to some CSS regions.
+	 * Note: This is the NIC-400 device on the CSS
+	 */
+	mmio_write_32(CSS_NIC400_BASE +
+		      NIC400_ADDR_CTRL_SECURITY_REG(CSS_NIC400_SLAVE_BOOTSECURE),
+		      ~0);
+}
+
+
+static void init_tzc400(void)
+{
+	/* Enable all filter units available */
+	mmio_write_32(TZC400_BASE + GATE_KEEPER_OFF, 0x0000000f);
+
+	/*
+	 * Secure read and write are enabled for region 0, and the background
+	 * region (region 0) is enabled for all four filter units
+	 */
+	mmio_write_32(TZC400_BASE + REGION_ATTRIBUTES_OFF, 0xc0000000);
+
+	/*
+	 * Enable Non-secure read/write accesses for the Soc Devices from the
+	 * Non-Secure World
+	 */
+	mmio_write_32(TZC400_BASE + REGION_ID_ACCESS_OFF,
+		TZC_REGION_ACCESS_RDWR(TZC400_NSAID_CCI400)	|
+		TZC_REGION_ACCESS_RDWR(TZC400_NSAID_PCIE)	|
+		TZC_REGION_ACCESS_RDWR(TZC400_NSAID_HDLCD0)	|
+		TZC_REGION_ACCESS_RDWR(TZC400_NSAID_HDLCD1)	|
+		TZC_REGION_ACCESS_RDWR(TZC400_NSAID_USB)	|
+		TZC_REGION_ACCESS_RDWR(TZC400_NSAID_DMA330)	|
+		TZC_REGION_ACCESS_RDWR(TZC400_NSAID_THINLINKS)	|
+		TZC_REGION_ACCESS_RDWR(TZC400_NSAID_AP)		|
+		TZC_REGION_ACCESS_RDWR(TZC400_NSAID_GPU)	|
+		TZC_REGION_ACCESS_RDWR(TZC400_NSAID_SCP)	|
+		TZC_REGION_ACCESS_RDWR(TZC400_NSAID_CORESIGHT)
+		);
+}
+
+#define PCIE_SECURE_REG		0x3000
+#define PCIE_SEC_ACCESS_MASK	((1 << 0) | (1 << 1)) /* REG and MEM access bits */
+
+static void init_pcie(void)
+{
+	/*
+	 * PCIE Root Complex Security settings to enable non-secure
+	 * access to config registers.
+	 */
+	mmio_write_32(PCIE_CONTROL_BASE + PCIE_SECURE_REG, PCIE_SEC_ACCESS_MASK);
+}
+
+
+/*******************************************************************************
+ * Function which will perform any remaining platform-specific setup that can
+ * occur after the MMU and data cache have been enabled.
+ ******************************************************************************/
+void bl1_platform_setup(void)
+{
+	init_nic400();
+	init_tzc400();
+	init_pcie();
+
+	/* Initialise the IO layer and register platform IO devices */
+	io_setup();
+
+	/* Enable and initialize the System level generic timer */
+	mmio_write_32(SYS_CNTCTL_BASE + CNTCR_OFF, CNTCR_FCREQ(0) | CNTCR_EN);
+}
+
+
+/*******************************************************************************
+ * Perform the very early platform specific architecture setup here. At the
+ * moment this only does basic initialization. Later architectural setup
+ * (bl1_arch_setup()) does not do anything platform specific.
+ ******************************************************************************/
+void bl1_plat_arch_setup(void)
+{
+	/*
+	 * Enable CCI-400 for this cluster. No need
+	 * for locks as no other cpu is active at the
+	 * moment
+	 */
+	cci_enable_coherency(read_mpidr());
+
+	configure_mmu_el3(bl1_tzram_layout.total_base,
+			  bl1_tzram_layout.total_size,
+			  TZROM_BASE,
+			  TZROM_BASE + TZROM_SIZE,
+			  BL1_COHERENT_RAM_BASE,
+			  BL1_COHERENT_RAM_LIMIT);
+}
+
+/*******************************************************************************
+ * Before calling this function BL2 is loaded in memory and its entrypoint
+ * is set by load_image. This is a placeholder for the platform to change
+ * the entrypoint of BL2 and set SPSR and security state.
+ * On Juno we are only setting the security state, entrypoint
+ ******************************************************************************/
+void bl1_plat_set_bl2_ep_info(image_info_t *bl2_image,
+			      entry_point_info_t *bl2_ep)
+{
+	SET_SECURITY_STATE(bl2_ep->h.attr, SECURE);
+	bl2_ep->spsr = SPSR_64(MODE_EL1, MODE_SP_ELX, DISABLE_ALL_EXCEPTIONS);
+}