+// SPDX-License-Identifier: GPL-2.0+
/*
* Porting to u-boot:
*
* Linux IPU driver for MX51:
*
* (C) Copyright 2005-2010 Freescale Semiconductor, Inc.
- *
- * SPDX-License-Identifier: GPL-2.0+
*/
/* #define DEBUG */
#include <linux/types.h>
#include <linux/err.h>
#include <asm/io.h>
-#include <asm/errno.h>
+#include <linux/errno.h>
#include <asm/arch/imx-regs.h>
#include <asm/arch/crm_regs.h>
+#include <asm/arch/sys_proto.h>
#include <div64.h>
#include "ipu.h"
#include "ipu_regs.h"
#define IPU_SW_RST_TOUT_USEC (10000)
+#define IPUV3_CLK_MX51 133000000
+#define IPUV3_CLK_MX53 200000000
+#define IPUV3_CLK_MX6Q 264000000
+#define IPUV3_CLK_MX6DL 198000000
+
void clk_enable(struct clk *clk)
{
if (clk) {
int clk_set_rate(struct clk *clk, unsigned long rate)
{
- if (clk && clk->set_rate)
+ if (!clk)
+ return 0;
+
+ if (clk->set_rate)
clk->set_rate(clk, rate);
+
return clk->rate;
}
static struct clk ipu_clk = {
.name = "ipu_clk",
- .rate = CONFIG_IPUV3_CLK,
#if defined(CONFIG_MX51) || defined(CONFIG_MX53)
.enable_reg = (u32 *)(CCM_BASE_ADDR +
offsetof(struct mxc_ccm_reg, CCGR5)),
g_pixel_clk[1] = &pixel_clk[1];
g_ipu_clk = &ipu_clk;
+#if defined(CONFIG_MX51)
+ g_ipu_clk->rate = IPUV3_CLK_MX51;
+#elif defined(CONFIG_MX53)
+ g_ipu_clk->rate = IPUV3_CLK_MX53;
+#else
+ g_ipu_clk->rate = is_mx6sdl() ? IPUV3_CLK_MX6DL : IPUV3_CLK_MX6Q;
+#endif
debug("ipu_clk = %u\n", clk_get_rate(g_ipu_clk));
g_ldb_clk = &ldb_clk;
debug("ldb_clk = %u\n", clk_get_rate(g_ldb_clk));
return 0;
}
+
+bool ipu_clk_enabled(void)
+{
+ return g_ipu_clk_enabled;
+}