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clk: thead: Add CLK_IGNORE_UNUSED to fix TH1520 boot

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[ Upstream commit 037705e94bf6e1810b7f9dc077d0e23292229e74 ]

Add the CLK_IGNORE_UNUSED flag to apb_pclk, cpu2peri_x2h_clk,
perisys_apb2_hclk and perisys_apb3_hclk.

Without this flag, the boot hangs after "clk: Disabling unused clocks"
unless clk_ignore_unused is in the kernel cmdline.

Fixes: ae81b69fd2 ("clk: thead: Add support for T-Head TH1520 AP_SUBSYS clocks")
Signed-off-by: Drew Fustini <dfustini@tenstorrent.com>
Link: https://lore.kernel.org/r/20250113-th1520-clk_ignore_unused-v1-2-0b08fb813438@tenstorrent.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Drew Fustini
2025-01-13 12:31:25 -08:00
committed by Greg Kroah-Hartman
parent 51232f9114
commit d592d66352
1 changed files with 4 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/clk/thead/clk-th1520-ap.c
+4 -4
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@@ -657,7 +657,7 @@ static struct ccu_div apb_pclk = {
.hw.init = CLK_HW_INIT_PARENTS_DATA("apb-pclk",
apb_parents,
&ccu_div_ops,
0),
CLK_IGNORE_UNUSED),
},
};
@@ -794,13 +794,13 @@ static CCU_GATE(CLK_X2X_CPUSYS, x2x_cpusys_clk, "x2x-cpusys", axi4_cpusys2_aclk_
0x134, BIT(7), 0);
static CCU_GATE(CLK_CPU2AON_X2H, cpu2aon_x2h_clk, "cpu2aon-x2h", axi_aclk_pd, 0x138, BIT(8), 0);
static CCU_GATE(CLK_CPU2PERI_X2H, cpu2peri_x2h_clk, "cpu2peri-x2h", axi4_cpusys2_aclk_pd,
0x140, BIT(9), 0);
0x140, BIT(9), CLK_IGNORE_UNUSED);
static CCU_GATE(CLK_PERISYS_APB1_HCLK, perisys_apb1_hclk, "perisys-apb1-hclk", perisys_ahb_hclk_pd,
0x150, BIT(9), 0);
static CCU_GATE(CLK_PERISYS_APB2_HCLK, perisys_apb2_hclk, "perisys-apb2-hclk", perisys_ahb_hclk_pd,
0x150, BIT(10), 0);
0x150, BIT(10), CLK_IGNORE_UNUSED);
static CCU_GATE(CLK_PERISYS_APB3_HCLK, perisys_apb3_hclk, "perisys-apb3-hclk", perisys_ahb_hclk_pd,
0x150, BIT(11), 0);
0x150, BIT(11), CLK_IGNORE_UNUSED);
static CCU_GATE(CLK_PERISYS_APB4_HCLK, perisys_apb4_hclk, "perisys-apb4-hclk", perisys_ahb_hclk_pd,
0x150, BIT(12), 0);
static CCU_GATE(CLK_NPU_AXI, npu_axi_clk, "npu-axi", axi_aclk_pd, 0x1c8, BIT(5), 0);