Merge branch 'bcm/cleanup' into next/soc
This is a dependency for the bcm21664 support. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Arnd Bergmann
commit
8efa50c5e1
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@ -1,5 +1,5 @@
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/*
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* Copyright (C) 2012-2013 Broadcom Corporation
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* Copyright (C) 2012-2014 Broadcom Corporation
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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@ -11,64 +11,65 @@
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* GNU General Public License for more details.
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*/
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#include <linux/of_platform.h>
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#include <linux/init.h>
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#include <linux/device.h>
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#include <linux/platform_device.h>
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#include <linux/clocksource.h>
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#include <linux/of_address.h>
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#include <linux/of_platform.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/time.h>
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#include <asm/hardware/cache-l2x0.h>
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#include "bcm_kona_smc.h"
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#include "kona.h"
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static int __init kona_l2_cache_init(void)
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{
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if (!IS_ENABLED(CONFIG_CACHE_L2X0))
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return 0;
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#define SECWDOG_OFFSET 0x00000000
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#define SECWDOG_RESERVED_MASK 0xe2000000
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#define SECWDOG_WD_LOAD_FLAG_MASK 0x10000000
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#define SECWDOG_EN_MASK 0x08000000
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#define SECWDOG_SRSTEN_MASK 0x04000000
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#define SECWDOG_CLKS_SHIFT 20
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#define SECWDOG_COUNT_SHIFT 0
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if (bcm_kona_smc_init() < 0) {
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pr_info("Kona secure API not available. Skipping L2 init\n");
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return 0;
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static void bcm281xx_restart(enum reboot_mode mode, const char *cmd)
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{
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uint32_t val;
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void __iomem *base;
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struct device_node *np_wdog;
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np_wdog = of_find_compatible_node(NULL, NULL, "brcm,kona-wdt");
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if (!np_wdog) {
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pr_emerg("Couldn't find brcm,kona-wdt\n");
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return;
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}
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base = of_iomap(np_wdog, 0);
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if (!base) {
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pr_emerg("Couldn't map brcm,kona-wdt\n");
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return;
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}
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bcm_kona_smc(SSAPI_ENABLE_L2_CACHE, 0, 0, 0, 0);
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/* Enable watchdog with short timeout (244us). */
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val = readl(base + SECWDOG_OFFSET);
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val &= SECWDOG_RESERVED_MASK | SECWDOG_WD_LOAD_FLAG_MASK;
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val |= SECWDOG_EN_MASK | SECWDOG_SRSTEN_MASK |
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(0x15 << SECWDOG_CLKS_SHIFT) |
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(0x8 << SECWDOG_COUNT_SHIFT);
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writel(val, base + SECWDOG_OFFSET);
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/*
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* The aux_val and aux_mask have no effect since L2 cache is already
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* enabled. Pass 0s for aux_val and 1s for aux_mask for default value.
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*/
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return l2x0_of_init(0, ~0);
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/* Wait for reset */
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while (1);
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}
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static void bcm_board_setup_restart(void)
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{
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struct device_node *np;
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np = of_find_compatible_node(NULL, NULL, "brcm,bcm11351");
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if (np) {
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if (of_device_is_available(np))
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bcm_kona_setup_restart();
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of_node_put(np);
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}
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/* Restart setup for other boards goes here */
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}
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static void __init board_init(void)
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static void __init bcm281xx_init(void)
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{
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of_platform_populate(NULL, of_default_bus_match_table, NULL,
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&platform_bus);
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bcm_board_setup_restart();
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kona_l2_cache_init();
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}
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static const char * const bcm11351_dt_compat[] = { "brcm,bcm11351", NULL, };
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static const char * const bcm281xx_dt_compat[] = {
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"brcm,bcm11351", /* Have to use the first number upstreamed */
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NULL,
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};
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DT_MACHINE_START(BCM11351_DT, "BCM281xx Broadcom Application Processor")
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.init_machine = board_init,
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.restart = bcm_kona_restart,
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.dt_compat = bcm11351_dt_compat,
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DT_MACHINE_START(BCM281XX_DT, "BCM281xx Broadcom Application Processor")
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.init_machine = bcm281xx_init,
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.restart = bcm281xx_restart,
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.dt_compat = bcm281xx_dt_compat,
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MACHINE_END
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@ -1,5 +1,5 @@
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/*
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* Copyright (C) 2013 Broadcom Corporation
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* Copyright (C) 2012-2014 Broadcom Corporation
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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@ -11,55 +11,33 @@
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* GNU General Public License for more details.
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*/
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#include <linux/of_address.h>
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#include <asm/io.h>
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#include <linux/of_platform.h>
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#include <asm/hardware/cache-l2x0.h>
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#include "bcm_kona_smc.h"
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#include "kona.h"
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static void __iomem *watchdog_base;
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void bcm_kona_setup_restart(void)
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void __init kona_l2_cache_init(void)
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{
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struct device_node *np_wdog;
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int ret;
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/*
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* The assumption is that whoever calls bcm_kona_setup_restart()
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* also needs a Kona Watchdog Timer entry in Device Tree, i.e. we
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* report an error if the DT entry is missing.
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*/
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np_wdog = of_find_compatible_node(NULL, NULL, "brcm,kona-wdt");
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if (!np_wdog) {
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pr_err("brcm,kona-wdt not found in DT, reboot disabled\n");
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if (!IS_ENABLED(CONFIG_CACHE_L2X0))
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return;
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ret = bcm_kona_smc_init();
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if (ret) {
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pr_info("Secure API not available (%d). Skipping L2 init.\n",
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ret);
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return;
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}
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watchdog_base = of_iomap(np_wdog, 0);
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WARN(!watchdog_base, "failed to map watchdog base");
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of_node_put(np_wdog);
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}
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#define SECWDOG_OFFSET 0x00000000
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#define SECWDOG_RESERVED_MASK 0xE2000000
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#define SECWDOG_WD_LOAD_FLAG_MASK 0x10000000
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#define SECWDOG_EN_MASK 0x08000000
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#define SECWDOG_SRSTEN_MASK 0x04000000
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#define SECWDOG_CLKS_SHIFT 20
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#define SECWDOG_LOCK_SHIFT 0
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void bcm_kona_restart(enum reboot_mode mode, const char *cmd)
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{
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uint32_t val;
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if (!watchdog_base)
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panic("Watchdog not mapped. Reboot failed.\n");
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/* Enable watchdog2 with very short timeout. */
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val = readl(watchdog_base + SECWDOG_OFFSET);
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val &= SECWDOG_RESERVED_MASK | SECWDOG_WD_LOAD_FLAG_MASK;
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val |= SECWDOG_EN_MASK | SECWDOG_SRSTEN_MASK |
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(0x8 << SECWDOG_CLKS_SHIFT) |
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(0x8 << SECWDOG_LOCK_SHIFT);
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writel(val, watchdog_base + SECWDOG_OFFSET);
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while (1)
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;
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bcm_kona_smc(SSAPI_ENABLE_L2_CACHE, 0, 0, 0, 0);
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/*
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* The aux_val and aux_mask have no effect since L2 cache is already
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* enabled. Pass 0s for aux_val and 1s for aux_mask for default value.
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*/
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ret = l2x0_of_init(0, ~0);
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if (ret)
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pr_err("Couldn't enable L2 cache: %d\n", ret);
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}
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@ -1,5 +1,5 @@
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/*
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* Copyright (C) 2013 Broadcom Corporation
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* Copyright (C) 2012-2014 Broadcom Corporation
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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@ -11,7 +11,4 @@
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* GNU General Public License for more details.
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*/
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#include <linux/reboot.h>
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void bcm_kona_setup_restart(void);
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void bcm_kona_restart(enum reboot_mode mode, const char *cmd);
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void __init kona_l2_cache_init(void);
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