[PATCH 1/2] ARM i.MX53: register CAN clocks

[Marc Kleine-Budde]

From: Sascha Hauer <s.hauer at pengutronix.de>

On the imx53, the flexcan core has two clocks, the ipg and the per clock.
This patch adds these clocks for both flexcans on the imx53.

An updated flexcan driver, taking advantage of these clocks, is currently
in the review process.

Signed-off-by: Sascha Hauer <s.hauer at pengutronix.de>
Signed-off-by: Steffen Trumtrar <s.trumtrar at pengutronix.de>
Signed-off-by: Marc Kleine-Budde <mkl at pengutronix.de>
---
 arch/arm/mach-imx/clk-imx51-imx53.c |   14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-imx/clk-imx51-imx53.c b/arch/arm/mach-imx/clk-imx51-imx53.c
index a2200c7..37eb420 100644
--- a/arch/arm/mach-imx/clk-imx51-imx53.c
+++ b/arch/arm/mach-imx/clk-imx51-imx53.c
@@ -49,6 +49,7 @@ static const char *mx53_tve_ext_sel[] = { "pll4_sw", "ckih1", };
 static const char *tve_sel[] = { "tve_pred", "tve_ext_sel", };
 static const char *ipu_sel[] = { "axi_a", "axi_b", "emi_slow_gate", "ahb", };
 static const char *vpu_sel[] = { "axi_a", "axi_b", "emi_slow_gate", "ahb", };
+static const char *mx53_can_sel[] = { "ipg", "ckih1", "ckih2", "lp_apm", };
 
 enum imx5_clks {
 	dummy, ckil, osc, ckih1, ckih2, ahb, ipg, axi_a, axi_b, uart_pred,
@@ -81,6 +82,7 @@ enum imx5_clks {
 	ssi1_root_podf, ssi2_root_pred, ssi2_root_podf, ssi_ext1_pred,
 	ssi_ext1_podf, ssi_ext2_pred, ssi_ext2_podf, ssi1_root_gate,
 	ssi2_root_gate, ssi3_root_gate, ssi_ext1_gate, ssi_ext2_gate,
+	can_sel, can1_serial_gate, can1_ipg_gate,
 	clk_max
 };
 
@@ -411,8 +413,12 @@ int __init mx53_clocks_init(unsigned long rate_ckil, unsigned long rate_osc,
 	clk[esdhc4_per_gate] = imx_clk_gate2("esdhc4_per_gate", "esdhc_d_sel", MXC_CCM_CCGR3, 14);
 	clk[usb_phy1_gate] = imx_clk_gate2("usb_phy1_gate", "usb_phy_sel", MXC_CCM_CCGR4, 10);
 	clk[usb_phy2_gate] = imx_clk_gate2("usb_phy2_gate", "usb_phy_sel", MXC_CCM_CCGR4, 12);
-	clk[can2_serial_gate] = imx_clk_gate2("can2_serial_gate", "ipg", MXC_CCM_CCGR4, 6);
-	clk[can2_ipg_gate] = imx_clk_gate2("can2_ipg_gate", "ipg", MXC_CCM_CCGR4, 8);
+	clk[can_sel] = imx_clk_mux("can_sel", MXC_CCM_CSCMR2, 6, 2,
+				mx53_can_sel, ARRAY_SIZE(mx53_can_sel));
+	clk[can1_serial_gate] = imx_clk_gate2("can1_serial_gate", "can_sel", MXC_CCM_CCGR6, 22);
+	clk[can1_ipg_gate] = imx_clk_gate2("can1_ipg_gate", "ipg", MXC_CCM_CCGR6, 20);
+	clk[can2_serial_gate] = imx_clk_gate2("can2_serial_gate", "can_sel", MXC_CCM_CCGR4, 8);
+	clk[can2_ipg_gate] = imx_clk_gate2("can2_ipg_gate", "ipg", MXC_CCM_CCGR4, 6);
 	clk[i2c3_gate] = imx_clk_gate2("i2c3_gate", "per_root", MXC_CCM_CCGR1, 22);
 
 	for (i = 0; i < ARRAY_SIZE(clk); i++)
@@ -445,6 +451,10 @@ int __init mx53_clocks_init(unsigned long rate_ckil, unsigned long rate_osc,
 	clk_register_clkdev(clk[ssi1_ipg_gate], NULL, "63fcc000.ssi");
 	clk_register_clkdev(clk[ssi2_ipg_gate], NULL, "50014000.ssi");
 	clk_register_clkdev(clk[ssi3_ipg_gate], NULL, "63fd0000.ssi");
+	clk_register_clkdev(clk[can1_ipg_gate], "ipg", "53fc8000.can");
+	clk_register_clkdev(clk[can1_serial_gate], "per", "53fc8000.can");
+	clk_register_clkdev(clk[can2_ipg_gate], "ipg", "53fcc000.can");
+	clk_register_clkdev(clk[can2_serial_gate], "per", "53fcc000.can");
 
 	/* set SDHC root clock to 200MHZ*/
 	clk_set_rate(clk[esdhc_a_podf], 200000000);
-- 
1.7.10.4