494cc76061
This branch converts Tegra to support multi-platform/single-zImage. One header is made accessible to drivers. The earlyprintk implementation is moved to the multi-platform location. Some Kconfig changes are made to enable multi-platform. Some dead files are deleted. The APIs exposed in the now-global tegra-powergate.h should be replaced with standard reset and power domain APIs in the future. This branch is based on (part of) the previous soc pull request. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) iQIcBAABAgAGBQJRXv+xAAoJEMzrak5tbycxjscP/iw1p3mtm0/8levUUOty5vHB a4/5P5nFZDCxDW8eWbf4cN6lg4dWLDaWo9SLF1pRZXc5opliyAai8/qVJYz++2T1 6FsJOg+PqMks0UKBXS5yR+P84cdTB55B71NQpaGe2oCwyIjuNnAZ5rTp4+/1RO4S aXdshQA+1aWVrfGe3nvigrpyPSM2Mmul/Lf0dtyaoFVWknGJT+CWu6upgzwIAWiu C8oolkkqmrsU/m9m+PJtmdtn0aD8oGQOPSuCcz/ExAy7GhTgcuTRdiUjmrcBgr7t d4phwXQ2gKLdSHxToBKLxZbnRqM69I1h0Ybcxakz9ICsaQ3yE6J6qq4tYlqoezYZ l9TH5VmdfnWdU/1ZBqyX/8+EyzUu2fI6uR4d78FYkmVfcEoAe/YvOx7A/CFUI5zN kYvrLjaLTRCRsgM4WuRMLGR4TN3Zq6ciC/QECD83xMfyWjwZGWfi9+2DIdQv2ge4 DJoJhNTHCHq1fPWsadnYgL93DjXCF5+w+d3nVz0vxNHfVz6DEYJyepkfmX0poEu0 RJg32cnW8rwDcqM97vnzUnV3ZSU1VZUA3Upf7uZALPwjxV4m7fQbytQU9pd0YU5B ZNRRb6MY9xjU/Z5lK5lGNttbwfuIbKobNDiVY0lJKTrSTJLAOO9MHs8HQ+lMzYXa 1jO31FETA5RpCKrPHvSi =6+gD -----END PGP SIGNATURE----- Merge tag 'tegra-for-3.10-multiplatform' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra into next/multiplatform From Stephen Warren <swarren@wwwdotorg.org>: ARM: tegra: multi-platform conversion This branch converts Tegra to support multi-platform/single-zImage. One header is made accessible to drivers. The earlyprintk implementation is moved to the multi-platform location. Some Kconfig changes are made to enable multi-platform. Some dead files are deleted. The APIs exposed in the now-global tegra-powergate.h should be replaced with standard reset and power domain APIs in the future. This branch is based on (part of) the previous soc pull request. * tag 'tegra-for-3.10-multiplatform' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra: ARM: tegra: convert to multi-platform ARM: tegra: move <mach/powergate.h> to <linux/tegra-powergate.h> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
113 lines
2.5 KiB
C
113 lines
2.5 KiB
C
/*
|
|
* arch/arm/mach-tegra/common.c
|
|
*
|
|
* Copyright (c) 2013 NVIDIA Corporation. All rights reserved.
|
|
* Copyright (C) 2010 Google, Inc.
|
|
*
|
|
* Author:
|
|
* Colin Cross <ccross@android.com>
|
|
*
|
|
* This software is licensed under the terms of the GNU General Public
|
|
* License version 2, as published by the Free Software Foundation, and
|
|
* may be copied, distributed, and modified under those terms.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
*/
|
|
|
|
#include <linux/init.h>
|
|
#include <linux/io.h>
|
|
#include <linux/clk.h>
|
|
#include <linux/delay.h>
|
|
#include <linux/irqchip.h>
|
|
#include <linux/clk/tegra.h>
|
|
|
|
#include <asm/hardware/cache-l2x0.h>
|
|
|
|
#include "board.h"
|
|
#include "common.h"
|
|
#include "fuse.h"
|
|
#include "iomap.h"
|
|
#include "irq.h"
|
|
#include "pmc.h"
|
|
#include "apbio.h"
|
|
#include "sleep.h"
|
|
#include "pm.h"
|
|
#include "reset.h"
|
|
|
|
/*
|
|
* Storage for debug-macro.S's state.
|
|
*
|
|
* This must be in .data not .bss so that it gets initialized each time the
|
|
* kernel is loaded. The data is declared here rather than debug-macro.S so
|
|
* that multiple inclusions of debug-macro.S point at the same data.
|
|
*/
|
|
u32 tegra_uart_config[4] = {
|
|
/* Debug UART initialization required */
|
|
1,
|
|
/* Debug UART physical address */
|
|
0,
|
|
/* Debug UART virtual address */
|
|
0,
|
|
/* Scratch space for debug macro */
|
|
0,
|
|
};
|
|
|
|
#ifdef CONFIG_OF
|
|
void __init tegra_dt_init_irq(void)
|
|
{
|
|
tegra_clocks_init();
|
|
tegra_pmc_init();
|
|
tegra_init_irq();
|
|
irqchip_init();
|
|
tegra_legacy_irq_syscore_init();
|
|
}
|
|
#endif
|
|
|
|
void tegra_assert_system_reset(char mode, const char *cmd)
|
|
{
|
|
void __iomem *reset = IO_ADDRESS(TEGRA_PMC_BASE + 0);
|
|
u32 reg;
|
|
|
|
reg = readl_relaxed(reset);
|
|
reg |= 0x10;
|
|
writel_relaxed(reg, reset);
|
|
}
|
|
|
|
static void __init tegra_init_cache(void)
|
|
{
|
|
#ifdef CONFIG_CACHE_L2X0
|
|
int ret;
|
|
void __iomem *p = IO_ADDRESS(TEGRA_ARM_PERIF_BASE) + 0x3000;
|
|
u32 aux_ctrl, cache_type;
|
|
|
|
cache_type = readl(p + L2X0_CACHE_TYPE);
|
|
aux_ctrl = (cache_type & 0x700) << (17-8);
|
|
aux_ctrl |= 0x7C400001;
|
|
|
|
ret = l2x0_of_init(aux_ctrl, 0x8200c3fe);
|
|
if (!ret)
|
|
l2x0_saved_regs_addr = virt_to_phys(&l2x0_saved_regs);
|
|
#endif
|
|
|
|
}
|
|
|
|
void __init tegra_init_early(void)
|
|
{
|
|
tegra_cpu_reset_handler_init();
|
|
tegra_apb_io_init();
|
|
tegra_init_fuse();
|
|
tegra_init_cache();
|
|
tegra_powergate_init();
|
|
tegra_hotplug_init();
|
|
}
|
|
|
|
void __init tegra_init_late(void)
|
|
{
|
|
tegra_init_suspend();
|
|
tegra_powergate_debugfs_init();
|
|
}
|