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Diffstat (limited to 'arch/arm/cpu/armv7/omap5/fdt.c')
-rw-r--r--arch/arm/cpu/armv7/omap5/fdt.c244
1 files changed, 0 insertions, 244 deletions
diff --git a/arch/arm/cpu/armv7/omap5/fdt.c b/arch/arm/cpu/armv7/omap5/fdt.c
deleted file mode 100644
index da8d59b..0000000
--- a/arch/arm/cpu/armv7/omap5/fdt.c
+++ /dev/null
@@ -1,244 +0,0 @@
-/*
- * Copyright 2016 Texas Instruments, Inc.
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-#include <common.h>
-#include <libfdt.h>
-#include <fdt_support.h>
-#include <malloc.h>
-
-#include <asm/omap_common.h>
-#include <asm/arch-omap5/sys_proto.h>
-
-#ifdef CONFIG_TI_SECURE_DEVICE
-
-/* Give zero values if not already defined */
-#ifndef TI_OMAP5_SECURE_BOOT_RESV_SRAM_SZ
-#define TI_OMAP5_SECURE_BOOT_RESV_SRAM_SZ (0)
-#endif
-#ifndef CONFIG_SECURE_RUNTIME_RESV_SRAM_SZ
-#define CONFIG_SECURE_RUNTIME_RESV_SRAM_SZ (0)
-#endif
-
-static u32 hs_irq_skip[] = {
- 8, /* Secure violation reporting interrupt */
- 15, /* One interrupt for SDMA by secure world */
- 118 /* One interrupt for Crypto DMA by secure world */
-};
-
-static int ft_hs_fixup_crossbar(void *fdt, bd_t *bd)
-{
- const char *path;
- int offs;
- int ret;
- int len, i, old_cnt, new_cnt;
- u32 *temp;
- const u32 *p_data;
-
- /*
- * Increase the size of the fdt
- * so we have some breathing room
- */
- ret = fdt_increase_size(fdt, 512);
- if (ret < 0) {
- printf("Could not increase size of device tree: %s\n",
- fdt_strerror(ret));
- return ret;
- }
-
- /* Reserve IRQs that are used/needed by secure world */
- path = "/ocp/crossbar";
- offs = fdt_path_offset(fdt, path);
- if (offs < 0) {
- debug("Node %s not found.\n", path);
- return 0;
- }
-
- /* Get current entries */
- p_data = fdt_getprop(fdt, offs, "ti,irqs-skip", &len);
- if (p_data)
- old_cnt = len / sizeof(u32);
- else
- old_cnt = 0;
-
- new_cnt = sizeof(hs_irq_skip) /
- sizeof(hs_irq_skip[0]);
-
- /* Create new/updated skip list for HS parts */
- temp = malloc(sizeof(u32) * (old_cnt + new_cnt));
- for (i = 0; i < new_cnt; i++)
- temp[i] = cpu_to_fdt32(hs_irq_skip[i]);
- for (i = 0; i < old_cnt; i++)
- temp[i + new_cnt] = p_data[i];
-
- /* Blow away old data and set new data */
- fdt_delprop(fdt, offs, "ti,irqs-skip");
- ret = fdt_setprop(fdt, offs, "ti,irqs-skip",
- temp,
- (old_cnt + new_cnt) * sizeof(u32));
- free(temp);
-
- /* Check if the update worked */
- if (ret < 0) {
- printf("Could not add ti,irqs-skip property to node %s: %s\n",
- path, fdt_strerror(ret));
- return ret;
- }
-
- return 0;
-}
-
-static int ft_hs_disable_rng(void *fdt, bd_t *bd)
-{
- const char *path;
- int offs;
- int ret;
-
- /* Make HW RNG reserved for secure world use */
- path = "/ocp/rng";
- offs = fdt_path_offset(fdt, path);
- if (offs < 0) {
- debug("Node %s not found.\n", path);
- return 0;
- }
- ret = fdt_setprop_string(fdt, offs,
- "status", "disabled");
- if (ret < 0) {
- printf("Could not add status property to node %s: %s\n",
- path, fdt_strerror(ret));
- return ret;
- }
- return 0;
-}
-
-#if ((TI_OMAP5_SECURE_BOOT_RESV_SRAM_SZ != 0) || \
- (CONFIG_SECURE_RUNTIME_RESV_SRAM_SZ != 0))
-static int ft_hs_fixup_sram(void *fdt, bd_t *bd)
-{
- const char *path;
- int offs;
- int ret;
- u32 temp[2];
-
- /*
- * Update SRAM reservations on secure devices. The OCMC RAM
- * is always reserved for secure use from the start of that
- * memory region
- */
- path = "/ocp/ocmcram@40300000/sram-hs";
- offs = fdt_path_offset(fdt, path);
- if (offs < 0) {
- debug("Node %s not found.\n", path);
- return 0;
- }
-
- /* relative start offset */
- temp[0] = cpu_to_fdt32(0);
- /* reservation size */
- temp[1] = cpu_to_fdt32(max(TI_OMAP5_SECURE_BOOT_RESV_SRAM_SZ,
- CONFIG_SECURE_RUNTIME_RESV_SRAM_SZ));
- fdt_delprop(fdt, offs, "reg");
- ret = fdt_setprop(fdt, offs, "reg", temp, 2 * sizeof(u32));
- if (ret < 0) {
- printf("Could not add reg property to node %s: %s\n",
- path, fdt_strerror(ret));
- return ret;
- }
-
- return 0;
-}
-#else
-static int ft_hs_fixup_sram(void *fdt, bd_t *bd) { return 0; }
-#endif
-
-#if (CONFIG_TI_SECURE_EMIF_TOTAL_REGION_SIZE != 0)
-static int ft_hs_fixup_dram(void *fdt, bd_t *bd)
-{
- const char *path, *subpath;
- int offs;
- u32 sec_mem_start = CONFIG_TI_SECURE_EMIF_REGION_START;
- u32 sec_mem_size = CONFIG_TI_SECURE_EMIF_TOTAL_REGION_SIZE;
- fdt64_t temp[2];
-
- /* If start address is zero, place at end of DRAM */
- if (0 == sec_mem_start)
- sec_mem_start =
- (CONFIG_SYS_SDRAM_BASE +
- (omap_sdram_size() - sec_mem_size));
-
- /* Delete any original secure_reserved node */
- path = "/reserved-memory/secure_reserved";
- offs = fdt_path_offset(fdt, path);
- if (offs >= 0)
- fdt_del_node(fdt, offs);
-
- /* Add new secure_reserved node */
- path = "/reserved-memory";
- offs = fdt_path_offset(fdt, path);
- if (offs < 0) {
- debug("Node %s not found\n", path);
- path = "/";
- subpath = "reserved-memory";
- fdt_path_offset(fdt, path);
- offs = fdt_add_subnode(fdt, offs, subpath);
- if (offs < 0) {
- printf("Could not create %s%s node.\n", path, subpath);
- return 1;
- }
- path = "/reserved-memory";
- offs = fdt_path_offset(fdt, path);
- }
-
- subpath = "secure_reserved";
- offs = fdt_add_subnode(fdt, offs, subpath);
- if (offs < 0) {
- printf("Could not create %s%s node.\n", path, subpath);
- return 1;
- }
-
- temp[0] = cpu_to_fdt64(((u64)sec_mem_start));
- temp[1] = cpu_to_fdt64(((u64)sec_mem_size));
- fdt_setprop_string(fdt, offs, "compatible",
- "ti,dra7-secure-memory");
- fdt_setprop_string(fdt, offs, "status", "okay");
- fdt_setprop(fdt, offs, "no-map", NULL, 0);
- fdt_setprop(fdt, offs, "reg", temp, sizeof(temp));
-
- return 0;
-}
-#else
-static int ft_hs_fixup_dram(void *fdt, bd_t *bd) { return 0; }
-#endif
-
-static void ft_hs_fixups(void *fdt, bd_t *bd)
-{
- /* Check we are running on an HS/EMU device type */
- if (GP_DEVICE != get_device_type()) {
- if ((ft_hs_fixup_crossbar(fdt, bd) == 0) &&
- (ft_hs_disable_rng(fdt, bd) == 0) &&
- (ft_hs_fixup_sram(fdt, bd) == 0) &&
- (ft_hs_fixup_dram(fdt, bd) == 0))
- return;
- } else {
- printf("ERROR: Incorrect device type (GP) detected!");
- }
- /* Fixup failed or wrong device type */
- hang();
-}
-#else
-static void ft_hs_fixups(void *fdt, bd_t *bd)
-{
-}
-#endif /* #ifdef CONFIG_TI_SECURE_DEVICE */
-
-/*
- * Place for general cpu/SoC FDT fixups. Board specific
- * fixups should remain in the board files which is where
- * this function should be called from.
- */
-void ft_cpu_setup(void *fdt, bd_t *bd)
-{
- ft_hs_fixups(fdt, bd);
-}
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