6 #include <dt-bindings/memory/tegra20-mc.h>
8 #include "mc.h"
198 static int tegra20_mc_hotreset_assert(struct tegra_mc *mc,  in tegra20_mc_hotreset_assert()  argument
204 	spin_lock_irqsave(&mc->lock, flags);  in tegra20_mc_hotreset_assert()
206 	value = mc_readl(mc, rst->reset);  in tegra20_mc_hotreset_assert()
207 	mc_writel(mc, value & ~BIT(rst->bit), rst->reset);  in tegra20_mc_hotreset_assert()
209 	spin_unlock_irqrestore(&mc->lock, flags);  in tegra20_mc_hotreset_assert()
214 static int tegra20_mc_hotreset_deassert(struct tegra_mc *mc,  in tegra20_mc_hotreset_deassert()  argument
220 	spin_lock_irqsave(&mc->lock, flags);  in tegra20_mc_hotreset_deassert()
222 	value = mc_readl(mc, rst->reset);  in tegra20_mc_hotreset_deassert()
223 	mc_writel(mc, value | BIT(rst->bit), rst->reset);  in tegra20_mc_hotreset_deassert()
225 	spin_unlock_irqrestore(&mc->lock, flags);  in tegra20_mc_hotreset_deassert()
230 static int tegra20_mc_block_dma(struct tegra_mc *mc,  in tegra20_mc_block_dma()  argument
236 	spin_lock_irqsave(&mc->lock, flags);  in tegra20_mc_block_dma()
238 	value = mc_readl(mc, rst->control) & ~BIT(rst->bit);  in tegra20_mc_block_dma()
239 	mc_writel(mc, value, rst->control);  in tegra20_mc_block_dma()
241 	spin_unlock_irqrestore(&mc->lock, flags);  in tegra20_mc_block_dma()
246 static bool tegra20_mc_dma_idling(struct tegra_mc *mc,  in tegra20_mc_dma_idling()  argument
249 	return mc_readl(mc, rst->status) == 0;  in tegra20_mc_dma_idling()
252 static int tegra20_mc_reset_status(struct tegra_mc *mc,  in tegra20_mc_reset_status()  argument
255 	return (mc_readl(mc, rst->reset) & BIT(rst->bit)) == 0;  in tegra20_mc_reset_status()
258 static int tegra20_mc_unblock_dma(struct tegra_mc *mc,  in tegra20_mc_unblock_dma()  argument
264 	spin_lock_irqsave(&mc->lock, flags);  in tegra20_mc_unblock_dma()
266 	value = mc_readl(mc, rst->control) | BIT(rst->bit);  in tegra20_mc_unblock_dma()
267 	mc_writel(mc, value, rst->control);  in tegra20_mc_unblock_dma()
269 	spin_unlock_irqrestore(&mc->lock, flags);  in tegra20_mc_unblock_dma()