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Diffstat (limited to 'src/soc/nvidia/tegra132/flow_ctrl.c')
-rw-r--r--src/soc/nvidia/tegra132/flow_ctrl.c92
1 files changed, 0 insertions, 92 deletions
diff --git a/src/soc/nvidia/tegra132/flow_ctrl.c b/src/soc/nvidia/tegra132/flow_ctrl.c
deleted file mode 100644
index 9c0c68cded..0000000000
--- a/src/soc/nvidia/tegra132/flow_ctrl.c
+++ /dev/null
@@ -1,92 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (c) 2014, NVIDIA CORPORATION. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * 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 <arch/io.h>
-#include <soc/addressmap.h>
-#include <soc/flow_ctrl.h>
-
-#define FLOW_CTRL_HALT_CPU0_EVENTS 0x0
-#define FLOW_CTRL_WAITEVENT (2 << 29)
-#define FLOW_CTRL_WAIT_FOR_INTERRUPT (4 << 29)
-#define FLOW_CTRL_HALT_LIC_IRQ (1 << 11)
-#define FLOW_CTRL_HALT_LIC_FIQ (1 << 10)
-#define FLOW_CTRL_CPU0_CSR 0x8
-#define FLOW_CTRL_CSR_INTR_FLAG (1 << 15)
-#define FLOW_CTRL_CSR_EVENT_FLAG (1 << 14)
-#define FLOW_CTRL_CSR_WFI_CPU0 (1 << 8)
-#define FLOW_CTRL_CSR_WFI_BITMAP (0xF << 8)
-#define FLOW_CTRL_CSR_WFE_BITMAP (0xF << 4)
-#define FLOW_CTRL_CSR_ENABLE (1 << 0)
-#define FLOW_CTRL_HALT_CPU1_EVENTS 0x14
-#define FLOW_CTRL_CPU1_CSR 0x18
-
-#define HALT_REG_CORE0 (\
- FLOW_CTRL_WAIT_FOR_INTERRUPT | \
- FLOW_CTRL_HALT_LIC_IRQ | \
- FLOW_CTRL_HALT_LIC_FIQ)
-
-#define HALT_REG_CORE1 FLOW_CTRL_WAITEVENT
-
-static void *tegra_flowctrl_base = (void*)TEGRA_FLOW_BASE;
-
-static const uint8_t flowctrl_offset_halt_cpu[] = {
- FLOW_CTRL_HALT_CPU0_EVENTS,
- FLOW_CTRL_HALT_CPU1_EVENTS
-};
-
-static const uint8_t flowctrl_offset_cpu_csr[] = {
- FLOW_CTRL_CPU0_CSR,
- FLOW_CTRL_CPU1_CSR
-};
-
-static uint32_t flowctrl_read_cpu_csr(int cpu)
-{
- return read32(tegra_flowctrl_base + flowctrl_offset_cpu_csr[cpu]);
-}
-
-static void flowctrl_write_cpu_csr(int cpu, uint32_t val)
-{
- write32(tegra_flowctrl_base + flowctrl_offset_cpu_csr[cpu], val);
- val = read32(tegra_flowctrl_base + flowctrl_offset_cpu_csr[cpu]);
-}
-
-void flowctrl_write_cpu_halt(int cpu, uint32_t val)
-{
- write32(tegra_flowctrl_base + flowctrl_offset_halt_cpu[cpu], val);
- val = read32(tegra_flowctrl_base + flowctrl_offset_halt_cpu[cpu]);
-}
-
-static void flowctrl_prepare_cpu_off(int cpu)
-{
- uint32_t reg;
-
- reg = flowctrl_read_cpu_csr(cpu);
- reg &= ~FLOW_CTRL_CSR_WFE_BITMAP; /* clear wfe bitmap */
- reg &= ~FLOW_CTRL_CSR_WFI_BITMAP; /* clear wfi bitmap */
- reg |= FLOW_CTRL_CSR_INTR_FLAG; /* clear intr flag */
- reg |= FLOW_CTRL_CSR_EVENT_FLAG; /* clear event flag */
- reg |= FLOW_CTRL_CSR_WFI_CPU0 << cpu; /* power gating on wfi */
- reg |= FLOW_CTRL_CSR_ENABLE; /* enable power gating */
- flowctrl_write_cpu_csr(cpu, reg);
-}
-
-void flowctrl_cpu_off(int cpu)
-{
- uint32_t reg;
-
- reg = cpu ? HALT_REG_CORE1 : HALT_REG_CORE0;
- flowctrl_prepare_cpu_off(cpu);
- flowctrl_write_cpu_halt(cpu, reg);
-}