[PATCH 3/3] clk: imx25: Add support for watchdog clock

[Uwe Kleine-König]

This is necessary to make the watchdog driver probe successfully.

Fixes: 87cad179648c ("watchdog: imxwd: get and enable clock")
Signed-off-by: Uwe Kleine-König <u.kleine-koenig at pengutronix.de>
---
 arch/arm/mach-imx/include/mach/imx25-regs.h | 1 +
 drivers/clk/imx/clk-imx25.c                 | 4 ++++
 2 files changed, 5 insertions(+)

diff --git a/arch/arm/mach-imx/include/mach/imx25-regs.h b/arch/arm/mach-imx/include/mach/imx25-regs.h
index d63669e1e0e7..bf89701fe048 100644
--- a/arch/arm/mach-imx/include/mach/imx25-regs.h
+++ b/arch/arm/mach-imx/include/mach/imx25-regs.h
@@ -56,6 +56,7 @@
 #define MX25_KPP_BASE_ADDR		0x43fa8000
 #define MX25_RNGB_BASE_ADDR		0x53fb0000
 #define MX25_SDMA_BASE_ADDR		0x53fd4000
+#define MX25_WATCHDOG_BASE_ADDR		0x53fdc000
 #define MX25_USB_BASE_ADDR		0x53ff4000
 #define MX25_USB_OTG_BASE_ADDR			(MX25_USB_BASE_ADDR + 0x0000)
 /*
diff --git a/drivers/clk/imx/clk-imx25.c b/drivers/clk/imx/clk-imx25.c
index 612edb222789..2bd0d6004b52 100644
--- a/drivers/clk/imx/clk-imx25.c
+++ b/drivers/clk/imx/clk-imx25.c
@@ -143,6 +143,9 @@ static int imx25_ccm_probe(struct device_d *dev)
 	clks[rngb_ipg] = imx_clk_gate("rngb_ipg", "ipg", base + CCM_CGCR2, 3);
 	clks[dryice_ipg] = imx_clk_gate("dryice_ipg", "ipg", base + CCM_CGCR1, 8);
 
+	/* reserved in datasheet, but used as wdt in FSL kernel */
+	clks[wdt_ipg] = imx_clk_gate("wdt_ipg", "ipg", base + CCM_CGCR2, 19);
+
 	clkdev_add_physbase(clks[per15], MX25_UART1_BASE_ADDR, NULL);
 	clkdev_add_physbase(clks[per15], MX25_UART2_BASE_ADDR, NULL);
 	clkdev_add_physbase(clks[per15], MX25_UART3_BASE_ADDR, NULL);
@@ -168,6 +171,7 @@ static int imx25_ccm_probe(struct device_d *dev)
 	clkdev_add_physbase(clks[scc_ipg], MX25_SCC_BASE_ADDR, "ipg");
 	clkdev_add_physbase(clks[rngb_ipg], MX25_RNGB_BASE_ADDR, "ipg");
 	clkdev_add_physbase(clks[dryice_ipg], MX25_DRYICE_BASE_ADDR, NULL);
+	clkdev_add_physbase(clks[wdt_ipg], MX25_WATCHDOG_BASE_ADDR, NULL);
 
 	return 0;
 }
-- 
2.36.1