Openwrt/target/linux/ath79/patches-5.10/0039-MIPS-ath79-export-UART1-reference-clock.patch
David Bauer d6b785d477 ath79: add kernel 5.10 support
This adds Kernel 5.10 support for the generic, nand and tiny subtargets.

The following patch is not contained, as it needs to be reworked:
platform/920-mikrotik-rb4xx.patch

Tested-on:
 - Siemens WS-AP3610
 - Enterasys WS-AP3710
 - Aerohive HiveAP 121
 - TP-Link TL-WA901 v2
 - TP-Link TL-WR741 v1

Signed-off-by: David Bauer <mail@david-bauer.net>
2021-02-20 01:26:33 +01:00

53 lines
1.7 KiB
Diff

--- a/arch/mips/ath79/clock.c
+++ b/arch/mips/ath79/clock.c
@@ -40,6 +40,7 @@ static const char * const clk_names[ATH7
[ATH79_CLK_AHB] = "ahb",
[ATH79_CLK_REF] = "ref",
[ATH79_CLK_MDIO] = "mdio",
+ [ATH79_CLK_UART1] = "uart1",
};
static const char * __init ath79_clk_name(int type)
@@ -344,6 +345,9 @@ static void __init ar934x_clocks_init(vo
if (clk_ctrl & AR934X_PLL_SWITCH_CLOCK_CONTROL_MDIO_CLK_SEL)
ath79_set_clk(ATH79_CLK_MDIO, 100 * 1000 * 1000);
+ if (clk_ctrl & AR934X_PLL_SWITCH_CLOCK_CONTROL_UART1_CLK_SEL)
+ ath79_set_clk(ATH79_CLK_UART1, 100 * 1000 * 1000);
+
iounmap(dpll_base);
}
@@ -649,6 +653,9 @@ static void __init ath79_clocks_init_dt(
if (!clks[ATH79_CLK_MDIO])
clks[ATH79_CLK_MDIO] = clks[ATH79_CLK_REF];
+ if (!clks[ATH79_CLK_UART1])
+ clks[ATH79_CLK_UART1] = clks[ATH79_CLK_REF];
+
if (of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data)) {
pr_err("%pOF: could not register clk provider\n", np);
goto err_iounmap;
--- a/arch/mips/include/asm/mach-ath79/ar71xx_regs.h
+++ b/arch/mips/include/asm/mach-ath79/ar71xx_regs.h
@@ -348,6 +348,7 @@
#define AR934X_PLL_CPU_DDR_CLK_CTRL_AHBCLK_FROM_DDRPLL BIT(24)
#define AR934X_PLL_SWITCH_CLOCK_CONTROL_MDIO_CLK_SEL BIT(6)
+#define AR934X_PLL_SWITCH_CLOCK_CONTROL_UART1_CLK_SEL BIT(7)
#define QCA953X_PLL_CPU_CONFIG_REG 0x00
#define QCA953X_PLL_DDR_CONFIG_REG 0x04
--- a/include/dt-bindings/clock/ath79-clk.h
+++ b/include/dt-bindings/clock/ath79-clk.h
@@ -11,7 +11,8 @@
#define ATH79_CLK_AHB 2
#define ATH79_CLK_REF 3
#define ATH79_CLK_MDIO 4
+#define ATH79_CLK_UART1 5
-#define ATH79_CLK_END 5
+#define ATH79_CLK_END 6
#endif /* __DT_BINDINGS_ATH79_CLK_H */