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soc: rockchip: thunderboot_sfc: Change to wait for SFC idle

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Change-Id: Idc7e1b8ae8d14c0f0bbac5714f53f50914982a65
Signed-off-by: Jon Lin <jon.lin@rock-chips.com>
This commit is contained in:
Jon Lin
2020-12-11 09:11:36 +08:00
committed by Tao Huang
parent d7437bb47f
commit 495203b0c3
1 changed files with 14 additions and 13 deletions
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27
drivers/soc/rockchip/rockchip_thunderboot_sfc.c
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@@ -21,7 +21,7 @@
#define SFC_BUSY BIT(0)
/* SFC_RAWISR Register */
#define TRANSS_INT BIT(4)
#define DMA_INT BIT(7)
static int rk_tb_sfc_thread(void *p)
{
@@ -43,20 +43,21 @@ static int rk_tb_sfc_thread(void *p)
rds = of_parse_phandle(dev->of_node, "memory-region-src", 0);
rdd = of_parse_phandle(dev->of_node, "memory-region-dst", 0);
if (readl_poll_timeout(regs + SFC_RAWISR, status,
status & TRANSS_INT, 100,
1000 * USEC_PER_MSEC)) {
dev_err(dev, "DMA is still running!\n");
#ifdef SFC_DEBUG
print_hex_dump(KERN_WARNING, "tb_sfc", DUMP_PREFIX_OFFSET, 4, 4, regs, 0x60, 0);
#endif
ret = readl_poll_timeout(regs + SFC_SR, status,
!(status & SFC_BUSY), 100,
1000 * USEC_PER_MSEC);
if (ret) {
dev_err(dev, "Wait for SFC idle timeout!\n");
goto out;
} else {
writel_relaxed(0xFFFFFFFF, regs + SFC_ICLR);
}
if (readl_poll_timeout(regs + SFC_SR, status,
!(status & SFC_BUSY), 100,
100 * USEC_PER_MSEC)) {
dev_err(dev, "SFC time out!\n");
goto out;
if (likely(readl(regs + SFC_RAWISR) & DMA_INT))
dev_err(dev, "DMA finished!\n");
else
dev_err(dev, "Last transfer non DMA!\n");
}
/* Parse ramdisk addr and help start decompressing */