linux-kernel - [PATCH 5/6] clk: imx: imx93: Add nic and A55 clk

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20230331064629.2475338-6-peng.fan@oss.nxp.com>
Date:   Fri, 31 Mar 2023 14:46:28 +0800
From:   "Peng Fan (OSS)" <peng.fan@....nxp.com>
To:     abelvesa@...nel.org, abel.vesa@...aro.org, mturquette@...libre.com,
        sboyd@...nel.org, shawnguo@...nel.org, s.hauer@...gutronix.de,
        kernel@...gutronix.de, festevam@...il.com
Cc:     linux-imx@....com, linux-clk@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Peng Fan <peng.fan@....com>
Subject: [PATCH 5/6] clk: imx: imx93: Add nic and A55 clk

From: Peng Fan <peng.fan@....com>

The A55 clock logic as below:
     A55_PLL ----------------->\
                                A55_SEL-->A55_CORE
     A55_CCM_ROOT--->A55_GATE->/

Add A55 CPU clk to support freq change.
Add NIC CLK to reflect the clk status

Signed-off-by: Peng Fan <peng.fan@....com>
---
 drivers/clk/imx/clk-imx93.c             | 17 +++++++++++++++--
 include/dt-bindings/clock/imx93-clock.h |  6 +++++-
 2 files changed, 20 insertions(+), 3 deletions(-)

diff --git a/drivers/clk/imx/clk-imx93.c b/drivers/clk/imx/clk-imx93.c
index bf2908be26a1..4cfe1f367d83 100644
--- a/drivers/clk/imx/clk-imx93.c
+++ b/drivers/clk/imx/clk-imx93.c
@@ -33,6 +33,7 @@ static u32 share_count_sai2;
 static u32 share_count_sai3;
 static u32 share_count_mub;
 
+static const char *a55_core_sels[] = {"a55_alt", "arm_pll"};
 static const char *parent_names[MAX_SEL][4] = {
 	{"osc_24m", "sys_pll_pfd0_div2", "sys_pll_pfd1_div2", "video_pll"},
 	{"osc_24m", "sys_pll_pfd0_div2", "sys_pll_pfd1_div2", "sys_pll_pfd2_div2"},
@@ -55,7 +56,7 @@ static const struct imx93_clk_root {
 	/* a55/m33/bus critical clk for system run */
 	{ IMX93_CLK_A55_PERIPH,		"a55_periph_root",	0x0000,	FAST_SEL, CLK_IS_CRITICAL },
 	{ IMX93_CLK_A55_MTR_BUS,	"a55_mtr_bus_root",	0x0080,	LOW_SPEED_IO_SEL, CLK_IS_CRITICAL },
-	{ IMX93_CLK_A55,		"a55_root",		0x0100,	FAST_SEL, CLK_IS_CRITICAL },
+	{ IMX93_CLK_A55,		"a55_alt_root",		0x0100,	FAST_SEL, CLK_IS_CRITICAL },
 	{ IMX93_CLK_M33,		"m33_root",		0x0180,	LOW_SPEED_IO_SEL, CLK_IS_CRITICAL },
 	{ IMX93_CLK_BUS_WAKEUP,		"bus_wakeup_root",	0x0280,	LOW_SPEED_IO_SEL, CLK_IS_CRITICAL },
 	{ IMX93_CLK_BUS_AON,		"bus_aon_root",		0x0300,	LOW_SPEED_IO_SEL, CLK_IS_CRITICAL },
@@ -117,6 +118,7 @@ static const struct imx93_clk_root {
 	{ IMX93_CLK_HSIO_USB_TEST_60M,	"hsio_usb_test_60m_root", 0x1f00, LOW_SPEED_IO_SEL, },
 	{ IMX93_CLK_HSIO_ACSCAN_80M,	"hsio_acscan_80m_root",	0x1f80,	LOW_SPEED_IO_SEL, },
 	{ IMX93_CLK_HSIO_ACSCAN_480M,	"hsio_acscan_480m_root", 0x2000, MISC_SEL, },
+	{ IMX93_CLK_NIC_AXI,		"nic_axi_root",		0x2080, FAST_SEL, CLK_IS_CRITICAL, },
 	{ IMX93_CLK_ML_APB,		"ml_apb_root",		0x2180,	LOW_SPEED_IO_SEL, },
 	{ IMX93_CLK_ML,			"ml_root",		0x2200,	FAST_SEL, },
 	{ IMX93_CLK_MEDIA_AXI,		"media_axi_root",	0x2280,	FAST_SEL, },
@@ -153,7 +155,7 @@ static const struct imx93_clk_ccgr {
 	unsigned long flags;
 	u32 *shared_count;
 } ccgr_array[] = {
-	{ IMX93_CLK_A55_GATE,		"a55",		"a55_root",		0x8000, },
+	{ IMX93_CLK_A55_GATE,		"a55_alt",	"a55_alt_root",		0x8000, },
 	/* M33 critical clk for system run */
 	{ IMX93_CLK_CM33_GATE,		"cm33",		"m33_root",		0x8040, CLK_IS_CRITICAL },
 	{ IMX93_CLK_ADC1_GATE,		"adc1",		"adc_root",		0x82c0, },
@@ -291,6 +293,9 @@ static int imx93_clocks_probe(struct platform_device *pdev)
 	if (WARN_ON(!anatop_base))
 		return -ENOMEM;
 
+	clks[IMX93_CLK_ARM_PLL] = imx_clk_fracn_gppll_integer("arm_pll", "osc_24m",
+							      anatop_base + 0x1000,
+							      &imx_fracn_gppll_integer);
 	clks[IMX93_CLK_AUDIO_PLL] = imx_clk_fracn_gppll("audio_pll", "osc_24m", anatop_base + 0x1200,
 							&imx_fracn_gppll);
 	clks[IMX93_CLK_VIDEO_PLL] = imx_clk_fracn_gppll("video_pll", "osc_24m", anatop_base + 0x1400,
@@ -318,6 +323,14 @@ static int imx93_clocks_probe(struct platform_device *pdev)
 						 ccgr->shared_count);
 	}
 
+	clks[IMX93_CLK_A55_SEL] = imx_clk_hw_mux2("a55_sel", base + 0x4820, 0, 1, a55_core_sels,
+						  ARRAY_SIZE(a55_core_sels));
+	clks[IMX93_CLK_A55_CORE] = imx_clk_hw_cpu("a55_core", "a55_sel",
+						  clks[IMX93_CLK_A55_SEL]->clk,
+						  clks[IMX93_CLK_A55_SEL]->clk,
+						  clks[IMX93_CLK_ARM_PLL]->clk,
+						  clks[IMX93_CLK_A55_GATE]->clk);
+
 	imx_check_clk_hws(clks, IMX93_CLK_END);
 
 	ret = of_clk_add_hw_provider(np, of_clk_hw_onecell_get, clk_hw_data);
diff --git a/include/dt-bindings/clock/imx93-clock.h b/include/dt-bindings/clock/imx93-clock.h
index 8e02859d8ce2..35a1f62053a5 100644
--- a/include/dt-bindings/clock/imx93-clock.h
+++ b/include/dt-bindings/clock/imx93-clock.h
@@ -199,6 +199,10 @@
 #define IMX93_CLK_MU1_B_GATE		194
 #define IMX93_CLK_MU2_A_GATE		195
 #define IMX93_CLK_MU2_B_GATE		196
-#define IMX93_CLK_END			197
+#define IMX93_CLK_NIC_AXI		197
+#define IMX93_CLK_ARM_PLL		198
+#define IMX93_CLK_A55_SEL		199
+#define IMX93_CLK_A55_CORE		200
+#define IMX93_CLK_END			201
 
 #endif
-- 
2.37.1