[PATCH v3 4/7] clk/qcom: sdm845: add register map for simple gate clocks
Caleb Connolly
caleb.connolly at linaro.org
Fri Nov 3 16:39:28 CET 2023
Many gate clocks can be enabled with a single register write, add support
for defining these simple gate clocks and add the ones found on SDM845.
While we're here, inline clk_init_uart() into msm_set_rate().
Reviewed-by: Sumit Garg <sumit.garg at linaro.org>
Signed-off-by: Caleb Connolly <caleb.connolly at linaro.org>
---
drivers/clk/qcom/clock-qcom.h | 26 ++++++++++++
drivers/clk/qcom/clock-sdm845.c | 87 +++++++++++++++++++++++++++++++++++------
2 files changed, 101 insertions(+), 12 deletions(-)
diff --git a/drivers/clk/qcom/clock-qcom.h b/drivers/clk/qcom/clock-qcom.h
index a9f895c2422e..6d399db987b6 100644
--- a/drivers/clk/qcom/clock-qcom.h
+++ b/drivers/clk/qcom/clock-qcom.h
@@ -5,6 +5,8 @@
#ifndef _CLOCK_QCOM_H
#define _CLOCK_QCOM_H
+#include <asm/io.h>
+
#define CFG_CLK_SRC_CXO (0 << 8)
#define CFG_CLK_SRC_GPLL0 (1 << 8)
#define CFG_CLK_SRC_GPLL0_EVEN (6 << 8)
@@ -30,6 +32,18 @@ struct bcr_regs {
uintptr_t D;
};
+struct gate_clk {
+ uintptr_t reg;
+ u32 en_val;
+ const char *name;
+};
+
+#ifdef DEBUG
+#define GATE_CLK(clk, reg, val) [clk] = { reg, val, #clk }
+#else
+#define GATE_CLK(clk, reg, val) [clk] = { reg, val, NULL }
+#endif
+
struct qcom_reset_map {
unsigned int reg;
u8 bit;
@@ -38,6 +52,8 @@ struct qcom_reset_map {
struct msm_clk_data {
const struct qcom_reset_map *resets;
unsigned long num_resets;
+ const struct gate_clk *clks;
+ unsigned long num_clks;
};
struct msm_clk_priv {
@@ -55,4 +71,14 @@ void clk_rcg_set_rate_mnd(phys_addr_t base, const struct bcr_regs *regs,
void clk_rcg_set_rate(phys_addr_t base, const struct bcr_regs *regs, int div,
int source);
+static inline void qcom_gate_clk_en(const struct msm_clk_priv *priv, unsigned long id)
+{
+ u32 val;
+ if (id >= priv->data->num_clks || priv->data->clks[id].reg == 0)
+ return;
+
+ val = readl(priv->base + priv->data->clks[id].reg);
+ writel(val | priv->data->clks[id].en_val, priv->base + priv->data->clks[id].reg);
+}
+
#endif
diff --git a/drivers/clk/qcom/clock-sdm845.c b/drivers/clk/qcom/clock-sdm845.c
index a7a43f69b9b3..57124e2a661a 100644
--- a/drivers/clk/qcom/clock-sdm845.c
+++ b/drivers/clk/qcom/clock-sdm845.c
@@ -11,6 +11,7 @@
#include <common.h>
#include <clk-uclass.h>
#include <dm.h>
+#include <linux/delay.h>
#include <errno.h>
#include <asm/io.h>
#include <linux/bitops.h>
@@ -71,30 +72,90 @@ const struct freq_tbl *qcom_find_freq(const struct freq_tbl *f, uint rate)
return f - 1;
}
-static int clk_init_uart(struct msm_clk_priv *priv, uint rate)
-{
- const struct freq_tbl *freq = qcom_find_freq(ftbl_gcc_qupv3_wrap0_s0_clk_src, rate);
-
- clk_rcg_set_rate_mnd(priv->base, &uart2_regs,
- freq->pre_div, freq->m, freq->n, freq->src);
-
- return 0;
-}
-
ulong msm_set_rate(struct clk *clk, ulong rate)
{
struct msm_clk_priv *priv = dev_get_priv(clk->dev);
+ const struct freq_tbl *freq;
switch (clk->id) {
- case GCC_QUPV3_WRAP1_S1_CLK: /*UART2*/
- return clk_init_uart(priv, rate);
+ case GCC_QUPV3_WRAP1_S1_CLK: /* UART9 */
+ freq = qcom_find_freq(ftbl_gcc_qupv3_wrap0_s0_clk_src, rate);
+ clk_rcg_set_rate_mnd(priv->base, &uart2_regs,
+ freq->pre_div, freq->m, freq->n, freq->src);
+
+ return freq->freq;
default:
return 0;
}
}
+static const struct gate_clk sdm845_clks[] = {
+ GATE_CLK(GCC_QUPV3_WRAP0_S0_CLK, 0x5200c, 0x00000400),
+ GATE_CLK(GCC_QUPV3_WRAP0_S1_CLK, 0x5200c, 0x00000800),
+ GATE_CLK(GCC_QUPV3_WRAP0_S2_CLK, 0x5200c, 0x00001000),
+ GATE_CLK(GCC_QUPV3_WRAP0_S3_CLK, 0x5200c, 0x00002000),
+ GATE_CLK(GCC_QUPV3_WRAP0_S4_CLK, 0x5200c, 0x00004000),
+ GATE_CLK(GCC_QUPV3_WRAP0_S5_CLK, 0x5200c, 0x00008000),
+ GATE_CLK(GCC_QUPV3_WRAP0_S6_CLK, 0x5200c, 0x00010000),
+ GATE_CLK(GCC_QUPV3_WRAP0_S7_CLK, 0x5200c, 0x00020000),
+ GATE_CLK(GCC_QUPV3_WRAP1_S0_CLK, 0x5200c, 0x00400000),
+ GATE_CLK(GCC_QUPV3_WRAP1_S1_CLK, 0x5200c, 0x00800000),
+ GATE_CLK(GCC_QUPV3_WRAP1_S3_CLK, 0x5200c, 0x02000000),
+ GATE_CLK(GCC_QUPV3_WRAP1_S4_CLK, 0x5200c, 0x04000000),
+ GATE_CLK(GCC_QUPV3_WRAP1_S5_CLK, 0x5200c, 0x08000000),
+ GATE_CLK(GCC_QUPV3_WRAP1_S6_CLK, 0x5200c, 0x10000000),
+ GATE_CLK(GCC_QUPV3_WRAP1_S7_CLK, 0x5200c, 0x20000000),
+ GATE_CLK(GCC_QUPV3_WRAP_0_M_AHB_CLK, 0x5200c, 0x00000040),
+ GATE_CLK(GCC_QUPV3_WRAP_0_S_AHB_CLK, 0x5200c, 0x00000080),
+ GATE_CLK(GCC_QUPV3_WRAP_1_M_AHB_CLK, 0x5200c, 0x00100000),
+ GATE_CLK(GCC_QUPV3_WRAP_1_S_AHB_CLK, 0x5200c, 0x00200000),
+ GATE_CLK(GCC_SDCC2_AHB_CLK, 0x14008, 0x00000001),
+ GATE_CLK(GCC_SDCC2_APPS_CLK, 0x14004, 0x00000001),
+ GATE_CLK(GCC_SDCC4_AHB_CLK, 0x16008, 0x00000001),
+ GATE_CLK(GCC_SDCC4_APPS_CLK, 0x16004, 0x00000001),
+ GATE_CLK(GCC_UFS_CARD_AHB_CLK, 0x75010, 0x00000001),
+ GATE_CLK(GCC_UFS_CARD_AXI_CLK, 0x7500c, 0x00000001),
+ GATE_CLK(GCC_UFS_CARD_CLKREF_CLK, 0x8c004, 0x00000001),
+ GATE_CLK(GCC_UFS_CARD_ICE_CORE_CLK, 0x75058, 0x00000001),
+ GATE_CLK(GCC_UFS_CARD_PHY_AUX_CLK, 0x7508c, 0x00000001),
+ GATE_CLK(GCC_UFS_CARD_RX_SYMBOL_0_CLK, 0x75018, 0x00000001),
+ GATE_CLK(GCC_UFS_CARD_RX_SYMBOL_1_CLK, 0x750a8, 0x00000001),
+ GATE_CLK(GCC_UFS_CARD_TX_SYMBOL_0_CLK, 0x75014, 0x00000001),
+ GATE_CLK(GCC_UFS_CARD_UNIPRO_CORE_CLK, 0x75054, 0x00000001),
+ GATE_CLK(GCC_UFS_MEM_CLKREF_CLK, 0x8c000, 0x00000001),
+ GATE_CLK(GCC_UFS_PHY_AHB_CLK, 0x77010, 0x00000001),
+ GATE_CLK(GCC_UFS_PHY_AXI_CLK, 0x7700c, 0x00000001),
+ GATE_CLK(GCC_UFS_PHY_ICE_CORE_CLK, 0x77058, 0x00000001),
+ GATE_CLK(GCC_UFS_PHY_PHY_AUX_CLK, 0x7708c, 0x00000001),
+ GATE_CLK(GCC_UFS_PHY_RX_SYMBOL_0_CLK, 0x77018, 0x00000001),
+ GATE_CLK(GCC_UFS_PHY_RX_SYMBOL_1_CLK, 0x770a8, 0x00000001),
+ GATE_CLK(GCC_UFS_PHY_TX_SYMBOL_0_CLK, 0x77014, 0x00000001),
+ GATE_CLK(GCC_UFS_PHY_UNIPRO_CORE_CLK, 0x77054, 0x00000001),
+ GATE_CLK(GCC_USB30_PRIM_MASTER_CLK, 0x0f00c, 0x00000001),
+ GATE_CLK(GCC_USB30_PRIM_MOCK_UTMI_CLK, 0x0f014, 0x00000001),
+ GATE_CLK(GCC_USB30_PRIM_SLEEP_CLK, 0x0f010, 0x00000001),
+ GATE_CLK(GCC_USB30_SEC_MASTER_CLK, 0x1000c, 0x00000001),
+ GATE_CLK(GCC_USB30_SEC_MOCK_UTMI_CLK, 0x10014, 0x00000001),
+ GATE_CLK(GCC_USB30_SEC_SLEEP_CLK, 0x10010, 0x00000001),
+ GATE_CLK(GCC_USB3_PRIM_CLKREF_CLK, 0x8c008, 0x00000001),
+ GATE_CLK(GCC_USB3_PRIM_PHY_AUX_CLK, 0x0f04c, 0x00000001),
+ GATE_CLK(GCC_USB3_PRIM_PHY_COM_AUX_CLK, 0x0f050, 0x00000001),
+ GATE_CLK(GCC_USB3_PRIM_PHY_PIPE_CLK, 0x0f054, 0x00000001),
+ GATE_CLK(GCC_USB3_SEC_CLKREF_CLK, 0x8c028, 0x00000001),
+ GATE_CLK(GCC_USB3_SEC_PHY_AUX_CLK, 0x1004c, 0x00000001),
+ GATE_CLK(GCC_USB3_SEC_PHY_PIPE_CLK, 0x10054, 0x00000001),
+ GATE_CLK(GCC_USB3_SEC_PHY_COM_AUX_CLK, 0x10050, 0x00000001),
+ GATE_CLK(GCC_USB_PHY_CFG_AHB2PHY_CLK, 0x6a004, 0x00000001),
+};
+
int msm_enable(struct clk *clk)
{
+ struct msm_clk_priv *priv = dev_get_priv(clk->dev);
+
+ debug("%s: clk %s\n", __func__, sdm845_clks[clk->id].name);
+
+ qcom_gate_clk_en(priv, clk->id);
+
return 0;
}
@@ -121,6 +182,8 @@ static const struct qcom_reset_map sdm845_gcc_resets[] = {
static const struct msm_clk_data qcs404_gcc_data = {
.resets = sdm845_gcc_resets,
.num_resets = ARRAY_SIZE(sdm845_gcc_resets),
+ .clks = sdm845_clks,
+ .num_clks = ARRAY_SIZE(sdm845_clks),
};
static const struct udevice_id gcc_sdm845_of_match[] = {
--
2.42.0
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