[PATCH v4 1/7] venus: firmware: enable no tz fw loading for sc7280

Dikshita Agarwal
2021-08-10T09:48:38Z

- Enable no tz FW loading.
- add routine to reset XTSS.

Signed-off-by: Dikshita Agarwal <dikshita@codeaurora.org>
---
drivers/media/platform/qcom/venus/firmware.c | 42 +++++++++++++++++-------
drivers/media/platform/qcom/venus/hfi_venus_io.h | 2 ++
2 files changed, 33 insertions(+), 11 deletions(-)

diff --git a/drivers/media/platform/qcom/venus/firmware.c b/drivers/media/platform/qcom/venus/firmware.c
index 227bd3b..14b6f1d 100644
--- a/drivers/media/platform/qcom/venus/firmware.c
+++ b/drivers/media/platform/qcom/venus/firmware.c
@@ -27,7 +27,12 @@
static void venus_reset_cpu(struct venus_core *core)
{
u32 fw_size = core->fw.mapped_mem_size;
- void __iomem *wrapper_base = core->wrapper_base;
+ void __iomem *wrapper_base;
+
+ if (IS_V6(core))
+ wrapper_base = core->wrapper_tz_base;
+ else
+ wrapper_base = core->wrapper_base;

writel(0, wrapper_base + WRAPPER_FW_START_ADDR);
writel(fw_size, wrapper_base + WRAPPER_FW_END_ADDR);
@@ -35,11 +40,17 @@ static void venus_reset_cpu(struct venus_core *core)
writel(fw_size, wrapper_base + WRAPPER_CPA_END_ADDR);
writel(fw_size, wrapper_base + WRAPPER_NONPIX_START_ADDR);
writel(fw_size, wrapper_base + WRAPPER_NONPIX_END_ADDR);
- writel(0x0, wrapper_base + WRAPPER_CPU_CGC_DIS);
- writel(0x0, wrapper_base + WRAPPER_CPU_CLOCK_CONFIG);

- /* Bring ARM9 out of reset */
- writel(0, wrapper_base + WRAPPER_A9SS_SW_RESET);
+ if (IS_V6(core)) {
+ /* Bring XTSS out of reset */
+ writel(0, wrapper_base + WRAPPER_TZ_XTSS_SW_RESET);
+ } else {
+ writel(0x0, wrapper_base + WRAPPER_CPU_CGC_DIS);
+ writel(0x0, wrapper_base + WRAPPER_CPU_CLOCK_CONFIG);
+
+ /* Bring ARM9 out of reset */
+ writel(0, wrapper_base + WRAPPER_A9SS_SW_RESET);
+ }
}

int venus_set_hw_state(struct venus_core *core, bool resume)
@@ -56,7 +67,9 @@ int venus_set_hw_state(struct venus_core *core, bool resume)
if (resume) {
venus_reset_cpu(core);
} else {
- if (!IS_V6(core))
+ if (IS_V6(core))
+ writel(1, core->wrapper_tz_base + WRAPPER_TZ_XTSS_SW_RESET);
+ else
writel(1, core->wrapper_base + WRAPPER_A9SS_SW_RESET);
}

@@ -162,12 +175,19 @@ static int venus_shutdown_no_tz(struct venus_core *core)
u32 reg;
struct device *dev = core->fw.dev;
void __iomem *wrapper_base = core->wrapper_base;
+ void __iomem *wrapper_tz_base = core->wrapper_tz_base;

- /* Assert the reset to ARM9 */
- reg = readl_relaxed(wrapper_base + WRAPPER_A9SS_SW_RESET);
- reg |= WRAPPER_A9SS_SW_RESET_BIT;
- writel_relaxed(reg, wrapper_base + WRAPPER_A9SS_SW_RESET);
-
+ if (IS_V6(core)) {
+ /* Assert the reset to XTSS */
+ reg = readl_relaxed(wrapper_tz_base + WRAPPER_TZ_XTSS_SW_RESET);
+ reg |= WRAPPER_XTSS_SW_RESET_BIT;
+ writel_relaxed(reg, wrapper_tz_base + WRAPPER_TZ_XTSS_SW_RESET);
+ } else {
+ /* Assert the reset to ARM9 */
+ reg = readl_relaxed(wrapper_base + WRAPPER_A9SS_SW_RESET);
+ reg |= WRAPPER_A9SS_SW_RESET_BIT;
+ writel_relaxed(reg, wrapper_base + WRAPPER_A9SS_SW_RESET);
+ }
/* Make sure reset is asserted before the mapping is removed */
mb();

diff --git a/drivers/media/platform/qcom/venus/hfi_venus_io.h b/drivers/media/platform/qcom/venus/hfi_venus_io.h
index 300c6e47..9735a24 100644
--- a/drivers/media/platform/qcom/venus/hfi_venus_io.h
+++ b/drivers/media/platform/qcom/venus/hfi_venus_io.h
@@ -149,6 +149,8 @@
/* Wrapper TZ 6xx */
#define WRAPPER_TZ_BASE_V6 0x000c0000
#define WRAPPER_TZ_CPU_STATUS_V6 0x10
+#define WRAPPER_TZ_XTSS_SW_RESET 0x1000
+#define WRAPPER_XTSS_SW_RESET_BIT BIT(0)

/* Venus AON */
#define AON_BASE_V6 0x000e0000
--
2.7.4