From 6a0b9d887e7093ab43add9b56848715c9d97955f Mon Sep 17 00:00:00 2001
From: Caleb Connolly <caleb.connolly@linaro.org>
Date: Tue, 9 Apr 2024 20:03:04 +0200
Subject: [PATCH] clk/qcom: sdm845: enable SDCC2 core clock
Allow setting the clock rate for the SD card core clock. This is
required for SD card support on SDM845 devices.
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
---
drivers/clk/qcom/clock-qcom.h | 1 +
drivers/clk/qcom/clock-sdm845.c | 17 +++++++++++++++++
2 files changed, 18 insertions(+)
diff --git a/drivers/clk/qcom/clock-qcom.h b/drivers/clk/qcom/clock-qcom.h
index cc170d8e3f..f6445c8f56 100644
--- a/drivers/clk/qcom/clock-qcom.h
+++ b/drivers/clk/qcom/clock-qcom.h
@@ -13,6 +13,7 @@
#define CFG_CLK_SRC_GPLL9 (2 << 8)
#define CFG_CLK_SRC_GPLL6 (4 << 8)
#define CFG_CLK_SRC_GPLL7 (3 << 8)
+#define CFG_CLK_SRC_GPLL4 (5 << 8)
#define CFG_CLK_SRC_GPLL0_EVEN (6 << 8)
#define CFG_CLK_SRC_MASK (7 << 8)
diff --git a/drivers/clk/qcom/clock-sdm845.c b/drivers/clk/qcom/clock-sdm845.c
index e9c61eb480..782df7da84 100644
--- a/drivers/clk/qcom/clock-sdm845.c
+++ b/drivers/clk/qcom/clock-sdm845.c
@@ -24,6 +24,7 @@
#define USB30_PRIM_MASTER_CLK_CMD_RCGR 0xf018
#define USB30_PRIM_MOCK_UTMI_CLK_CMD_RCGR 0xf030
#define USB3_PRIM_PHY_AUX_CMD_RCGR 0xf05c
+#define SDCC2_APPS_CLK_CMD_RCGR 0x1400c
static const struct freq_tbl ftbl_gcc_qupv3_wrap0_s0_clk_src[] = {
F(7372800, CFG_CLK_SRC_GPLL0_EVEN, 1, 384, 15625),
@@ -44,6 +45,17 @@ static const struct freq_tbl ftbl_gcc_qupv3_wrap0_s0_clk_src[] = {
{ }
};
+static const struct freq_tbl ftbl_gcc_sdcc2_apps_clk_src[] = {
+ F(400000, CFG_CLK_SRC_CXO, 12, 1, 4),
+ F(9600000, CFG_CLK_SRC_CXO, 2, 0, 0),
+ F(19200000, CFG_CLK_SRC_CXO, 1, 0, 0),
+ F(25000000, CFG_CLK_SRC_GPLL0_EVEN, 12, 0, 0),
+ F(50000000, CFG_CLK_SRC_GPLL0_EVEN, 6, 0, 0),
+ F(100000000, CFG_CLK_SRC_GPLL0, 6, 0, 0),
+ F(201500000, CFG_CLK_SRC_GPLL4, 4, 0, 0),
+ { }
+};
+
static ulong sdm845_clk_set_rate(struct clk *clk, ulong rate)
{
struct msm_clk_priv *priv = dev_get_priv(clk->dev);
@@ -55,6 +67,11 @@ static ulong sdm845_clk_set_rate(struct clk *clk, ulong rate)
clk_rcg_set_rate_mnd(priv->base, SE9_UART_APPS_CMD_RCGR,
freq->pre_div, freq->m, freq->n, freq->src, 16);
return freq->freq;
+ case GCC_SDCC2_APPS_CLK:
+ freq = qcom_find_freq(ftbl_gcc_sdcc2_apps_clk_src, rate);
+ clk_rcg_set_rate_mnd(priv->base, SDCC2_APPS_CLK_CMD_RCGR,
+ freq->pre_div, freq->m, freq->n, freq->src, 8);
+ return freq->freq;
default:
return 0;
}
--
2.39.5