remoteproc: mediatek: Support mt8186 scp

Add SCP support for mt8186

Signed-off-by: Allen-KH Cheng <Allen-KH.Cheng@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220225132747.31808-3-allen-kh.cheng@mediatek.com

diff --git a/drivers/remoteproc/mtk_common.h b/drivers/remoteproc/mtk_common.h
index 5ff3867c72f373c37aa5d28156fbeb67fbbe71d4..71ce4977cb0b3f47b7511267ae9345b19ac8ce2e 100644 (file)
--- a/drivers/remoteproc/mtk_common.h
+++ b/drivers/remoteproc/mtk_common.h
@@ -32,6 +32,9 @@
 #define MT8183_SCP_CACHESIZE_8KB       BIT(8)
 #define MT8183_SCP_CACHE_CON_WAYEN     BIT(10)
 
+#define MT8186_SCP_L1_SRAM_PD_P1       0x40B0
+#define MT8186_SCP_L1_SRAM_PD_p2       0x40B4
+
 #define MT8192_L2TCM_SRAM_PD_0         0x10C0
 #define MT8192_L2TCM_SRAM_PD_1         0x10C4
 #define MT8192_L2TCM_SRAM_PD_2         0x10C8

diff --git a/drivers/remoteproc/mtk_scp.c b/drivers/remoteproc/mtk_scp.c
index dcddb33e999757f01acd44afb66fa6e1334e78e7..38609153bf64c3603089a4de0fb54f755f7c7291 100644 (file)
--- a/drivers/remoteproc/mtk_scp.c
+++ b/drivers/remoteproc/mtk_scp.c
@@ -383,6 +383,27 @@ static void mt8192_power_off_sram(void __iomem *addr)
                writel(GENMASK(i, 0), addr);
 }
 
+static int mt8186_scp_before_load(struct mtk_scp *scp)
+{
+       /* Clear SCP to host interrupt */
+       writel(MT8183_SCP_IPC_INT_BIT, scp->reg_base + MT8183_SCP_TO_HOST);
+
+       /* Reset clocks before loading FW */
+       writel(0x0, scp->reg_base + MT8183_SCP_CLK_SW_SEL);
+       writel(0x0, scp->reg_base + MT8183_SCP_CLK_DIV_SEL);
+
+       /* Turn on the power of SCP's SRAM before using it. Enable 1 block per time*/
+       mt8192_power_on_sram(scp->reg_base + MT8183_SCP_SRAM_PDN);
+
+       /* Initialize TCM before loading FW. */
+       writel(0x0, scp->reg_base + MT8183_SCP_L1_SRAM_PD);
+       writel(0x0, scp->reg_base + MT8183_SCP_TCM_TAIL_SRAM_PD);
+       writel(0x0, scp->reg_base + MT8186_SCP_L1_SRAM_PD_P1);
+       writel(0x0, scp->reg_base + MT8186_SCP_L1_SRAM_PD_p2);
+
+       return 0;
+}
+
 static int mt8192_scp_before_load(struct mtk_scp *scp)
 {
        /* clear SPM interrupt, SCP2SPM_IPC_CLR */
@@ -874,6 +895,19 @@ static const struct mtk_scp_of_data mt8183_of_data = {
        .ipi_buf_offset = 0x7bdb0,
 };
 
+static const struct mtk_scp_of_data mt8186_of_data = {
+       .scp_clk_get = mt8195_scp_clk_get,
+       .scp_before_load = mt8186_scp_before_load,
+       .scp_irq_handler = mt8183_scp_irq_handler,
+       .scp_reset_assert = mt8183_scp_reset_assert,
+       .scp_reset_deassert = mt8183_scp_reset_deassert,
+       .scp_stop = mt8183_scp_stop,
+       .scp_da_to_va = mt8183_scp_da_to_va,
+       .host_to_scp_reg = MT8183_HOST_TO_SCP,
+       .host_to_scp_int_bit = MT8183_HOST_IPC_INT_BIT,
+       .ipi_buf_offset = 0x7bdb0,
+};
+
 static const struct mtk_scp_of_data mt8192_of_data = {
        .scp_clk_get = mt8192_scp_clk_get,
        .scp_before_load = mt8192_scp_before_load,
@@ -900,6 +934,7 @@ static const struct mtk_scp_of_data mt8195_of_data = {
 
 static const struct of_device_id mtk_scp_of_match[] = {
        { .compatible = "mediatek,mt8183-scp", .data = &mt8183_of_data },
+       { .compatible = "mediatek,mt8186-scp", .data = &mt8186_of_data },
        { .compatible = "mediatek,mt8192-scp", .data = &mt8192_of_data },
        { .compatible = "mediatek,mt8195-scp", .data = &mt8195_of_data },
        {},