The newer "register map for simple gate clocks" support added for qcom
clocks is used. As a result gcc_apq8016 now has a mixture of the old and
new styles. I didn't (and still don't!) feel comfortable enough in this
area to update the existing code.
Signed-off-by: Sam Day <m...@samcday.com>
---
drivers/clk/qcom/clock-apq8016.c | 32 ++++++++++++++++++++++++++++++++
1 file changed, 32 insertions(+)
diff --git a/drivers/clk/qcom/clock-apq8016.c b/drivers/clk/qcom/clock-apq8016.c
index d3b63b9c1a..3b8c88c769 100644
--- a/drivers/clk/qcom/clock-apq8016.c
+++ b/drivers/clk/qcom/clock-apq8016.c
@@ -17,6 +17,8 @@
#include "clock-qcom.h"
+#define USB_HS_SYSTEM_CLK_CMD_RCGR 0x41010
+
/* Clocks: (from CLK_CTL_BASE) */
#define GPLL0_STATUS (0x2101C)
#define APCS_GPLL_ENA_VOTE (0x45000)
@@ -52,6 +54,11 @@ static struct vote_clk gcc_blsp1_ahb_clk = {
.vote_bit = BIT(10),
};
+static const struct gate_clk apq8016_clks[] = {
+ GATE_CLK(GCC_USB_HS_AHB_CLK, 0x41008, 0x00000001),
+ GATE_CLK(GCC_USB_HS_SYSTEM_CLK, 0x41004, 0x00000001),
+};
+
/* SDHCI */
static int apq8016_clk_init_sdc(struct msm_clk_priv *priv, int slot, uint rate)
{
@@ -117,13 +124,38 @@ static ulong apq8016_clk_set_rate(struct clk *clk, ulong
rate)
case GCC_BLSP1_UART2_APPS_CLK: /* UART2 */
apq8016_clk_init_uart(priv->base, clk->id);
return 7372800;
+ case GCC_USB_HS_SYSTEM_CLK:
+ if (rate != 80000000)
+ log_warning("Unexpected rate %ld requested for
USB_HS_SYSTEM_CLK\n",
+ rate);
+ clk_rcg_set_rate_mnd(priv->base, USB_HS_SYSTEM_CLK_CMD_RCGR,
+ 10, 0, 0, CFG_CLK_SRC_GPLL0, 0);
+ return rate;
default:
return 0;
}
}
+static int apq8016_clk_enable(struct clk *clk)
+{
+ struct msm_clk_priv *priv = dev_get_priv(clk->dev);
+
+ if (priv->data->num_clks < clk->id) {
+ log_warning("%s: unknown clk id %lu\n", __func__, clk->id);
+ return 0;
+ }
+
+ debug("%s: clk %s\n", __func__, apq8016_clks[clk->id].name);
+ qcom_gate_clk_en(priv, clk->id);
+
+ return 0;
+}
+
static struct msm_clk_data apq8016_clk_data = {
.set_rate = apq8016_clk_set_rate,
+ .clks = apq8016_clks,
+ .num_clks = ARRAY_SIZE(apq8016_clks),
+ .enable = apq8016_clk_enable,
};
static const struct udevice_id gcc_apq8016_of_match[] = {
--
2.44.0
