rockchip: Tidy up board include-file ordering

[oweals/u-boot.git] / arch / arm / mach-at91 / arm920t / clock.c

diff --git a/arch/arm/mach-at91/arm920t/clock.c b/arch/arm/mach-at91/arm920t/clock.c
index 2813bf7821613d6bc06fe5058faaa9a7c3225b49..9a57dd40891bcc06dbc277162e09620f2fc220ed 100644 (file)
--- a/arch/arm/mach-at91/arm920t/clock.c
+++ b/arch/arm/mach-at91/arm920t/clock.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * [origin: Linux kernel linux/arch/arm/mach-at91/clock.c]
  *
@@ -5,8 +6,6 @@
  * Copyright (C) 2005 David Brownell
  * Copyright (C) 2005 Ivan Kokshaysky
  * Copyright (C) 2009 Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
- *
- * SPDX-License-Identifier:    GPL-2.0+
  */
 #include <common.h>
 #include <asm/io.h>
@@ -18,6 +17,8 @@
 # error You need to define CONFIG_AT91FAMILY in your board config!
 #endif
 
+#define EN_PLLB_TIMEOUT        500
+
 DECLARE_GLOBAL_DATA_PTR;
 
 static unsigned long at91_css_to_rate(unsigned long css)
@@ -155,3 +156,39 @@ int at91_clock_init(unsigned long main_clock)
 
        return 0;
 }
+
+int at91_pllb_clk_enable(u32 pllbr)
+{
+       struct at91_pmc *pmc = (at91_pmc_t *)ATMEL_BASE_PMC;
+       ulong start_time, tmp_time;
+
+       start_time = get_timer(0);
+       writel(pllbr, &pmc->pllbr);
+       while ((readl(&pmc->sr) & AT91_PMC_LOCKB) != AT91_PMC_LOCKB) {
+               tmp_time = get_timer(0);
+               if ((tmp_time - start_time) > EN_PLLB_TIMEOUT) {
+                       printf("ERROR: failed to enable PLLB\n");
+                       return -1;
+               }
+       }
+
+       return 0;
+}
+
+int at91_pllb_clk_disable(void)
+{
+       struct at91_pmc *pmc = (at91_pmc_t *)ATMEL_BASE_PMC;
+       ulong start_time, tmp_time;
+
+       start_time = get_timer(0);
+       writel(0, &pmc->pllbr);
+       while ((readl(&pmc->sr) & AT91_PMC_LOCKB) != 0) {
+               tmp_time = get_timer(0);
+               if ((tmp_time - start_time) > EN_PLLB_TIMEOUT) {
+                       printf("ERROR: failed to disable PLLB\n");
+                       return -1;
+               }
+       }
+
+       return 0;
+}