diff mbox

[13/20] ARM: imx5: use dynamic mapping for CCM block

Message ID 1400575538-21136-14-git-send-email-shawn.guo@freescale.com (mailing list archive)
State New, archived
Headers show

Commit Message

Shawn Guo May 20, 2014, 8:45 a.m. UTC 
Replace the static mapping of CCM block with dynamic mapping and
retrieve CCM base address from device tree.  Though it's not nice to
encode the variable ccm_base in macros, it helps to avoid a massive
churn on the code.

Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
---
 arch/arm/mach-imx/clk-imx51-imx53.c | 90 +++++++++++++++++++++----------------
 1 file changed, 51 insertions(+), 39 deletions(-)
diff mbox

Patch

diff --git a/arch/arm/mach-imx/clk-imx51-imx53.c b/arch/arm/mach-imx/clk-imx51-imx53.c
index c8c88df..9eb54a8 100644
--- a/arch/arm/mach-imx/clk-imx51-imx53.c
+++ b/arch/arm/mach-imx/clk-imx51-imx53.c
@@ -22,7 +22,6 @@ 
 #include "common.h"
 #include "hardware.h"
 
-#define MX51_CCM_BASE		MX51_IO_ADDRESS(MX51_CCM_BASE_ADDR)
 #define MX51_DPLL1_BASE		MX51_IO_ADDRESS(MX51_PLL1_BASE_ADDR)
 #define MX51_DPLL2_BASE		MX51_IO_ADDRESS(MX51_PLL2_BASE_ADDR)
 #define MX51_DPLL3_BASE		MX51_IO_ADDRESS(MX51_PLL3_BASE_ADDR)
@@ -31,40 +30,40 @@ 
 #define MX53_DPLL3_BASE		MX53_IO_ADDRESS(MX53_PLL3_BASE_ADDR)
 #define MX53_DPLL4_BASE		MX53_IO_ADDRESS(MX53_PLL4_BASE_ADDR)
 
-#define MXC_CCM_CCR		(MX51_CCM_BASE + 0x00)
-#define MXC_CCM_CCDR		(MX51_CCM_BASE + 0x04)
-#define MXC_CCM_CSR		(MX51_CCM_BASE + 0x08)
-#define MXC_CCM_CCSR		(MX51_CCM_BASE + 0x0c)
-#define MXC_CCM_CACRR		(MX51_CCM_BASE + 0x10)
-#define MXC_CCM_CBCDR		(MX51_CCM_BASE + 0x14)
-#define MXC_CCM_CBCMR		(MX51_CCM_BASE + 0x18)
-#define MXC_CCM_CSCMR1		(MX51_CCM_BASE + 0x1c)
-#define MXC_CCM_CSCMR2		(MX51_CCM_BASE + 0x20)
-#define MXC_CCM_CSCDR1		(MX51_CCM_BASE + 0x24)
-#define MXC_CCM_CS1CDR		(MX51_CCM_BASE + 0x28)
-#define MXC_CCM_CS2CDR		(MX51_CCM_BASE + 0x2c)
-#define MXC_CCM_CDCDR		(MX51_CCM_BASE + 0x30)
-#define MXC_CCM_CHSCDR		(MX51_CCM_BASE + 0x34)
-#define MXC_CCM_CSCDR2		(MX51_CCM_BASE + 0x38)
-#define MXC_CCM_CSCDR3		(MX51_CCM_BASE + 0x3c)
-#define MXC_CCM_CSCDR4		(MX51_CCM_BASE + 0x40)
-#define MXC_CCM_CWDR		(MX51_CCM_BASE + 0x44)
-#define MXC_CCM_CDHIPR		(MX51_CCM_BASE + 0x48)
-#define MXC_CCM_CDCR		(MX51_CCM_BASE + 0x4c)
-#define MXC_CCM_CTOR		(MX51_CCM_BASE + 0x50)
-#define MXC_CCM_CLPCR		(MX51_CCM_BASE + 0x54)
-#define MXC_CCM_CISR		(MX51_CCM_BASE + 0x58)
-#define MXC_CCM_CIMR		(MX51_CCM_BASE + 0x5c)
-#define MXC_CCM_CCOSR		(MX51_CCM_BASE + 0x60)
-#define MXC_CCM_CGPR		(MX51_CCM_BASE + 0x64)
-#define MXC_CCM_CCGR0		(MX51_CCM_BASE + 0x68)
-#define MXC_CCM_CCGR1		(MX51_CCM_BASE + 0x6c)
-#define MXC_CCM_CCGR2		(MX51_CCM_BASE + 0x70)
-#define MXC_CCM_CCGR3		(MX51_CCM_BASE + 0x74)
-#define MXC_CCM_CCGR4		(MX51_CCM_BASE + 0x78)
-#define MXC_CCM_CCGR5		(MX51_CCM_BASE + 0x7c)
-#define MXC_CCM_CCGR6		(MX51_CCM_BASE + 0x80)
-#define MXC_CCM_CCGR7		(MX51_CCM_BASE + 0x84)
+#define MXC_CCM_CCR		(ccm_base + 0x00)
+#define MXC_CCM_CCDR		(ccm_base + 0x04)
+#define MXC_CCM_CSR		(ccm_base + 0x08)
+#define MXC_CCM_CCSR		(ccm_base + 0x0c)
+#define MXC_CCM_CACRR		(ccm_base + 0x10)
+#define MXC_CCM_CBCDR		(ccm_base + 0x14)
+#define MXC_CCM_CBCMR		(ccm_base + 0x18)
+#define MXC_CCM_CSCMR1		(ccm_base + 0x1c)
+#define MXC_CCM_CSCMR2		(ccm_base + 0x20)
+#define MXC_CCM_CSCDR1		(ccm_base + 0x24)
+#define MXC_CCM_CS1CDR		(ccm_base + 0x28)
+#define MXC_CCM_CS2CDR		(ccm_base + 0x2c)
+#define MXC_CCM_CDCDR		(ccm_base + 0x30)
+#define MXC_CCM_CHSCDR		(ccm_base + 0x34)
+#define MXC_CCM_CSCDR2		(ccm_base + 0x38)
+#define MXC_CCM_CSCDR3		(ccm_base + 0x3c)
+#define MXC_CCM_CSCDR4		(ccm_base + 0x40)
+#define MXC_CCM_CWDR		(ccm_base + 0x44)
+#define MXC_CCM_CDHIPR		(ccm_base + 0x48)
+#define MXC_CCM_CDCR		(ccm_base + 0x4c)
+#define MXC_CCM_CTOR		(ccm_base + 0x50)
+#define MXC_CCM_CLPCR		(ccm_base + 0x54)
+#define MXC_CCM_CISR		(ccm_base + 0x58)
+#define MXC_CCM_CIMR		(ccm_base + 0x5c)
+#define MXC_CCM_CCOSR		(ccm_base + 0x60)
+#define MXC_CCM_CGPR		(ccm_base + 0x64)
+#define MXC_CCM_CCGR0		(ccm_base + 0x68)
+#define MXC_CCM_CCGR1		(ccm_base + 0x6c)
+#define MXC_CCM_CCGR2		(ccm_base + 0x70)
+#define MXC_CCM_CCGR3		(ccm_base + 0x74)
+#define MXC_CCM_CCGR4		(ccm_base + 0x78)
+#define MXC_CCM_CCGR5		(ccm_base + 0x7c)
+#define MXC_CCM_CCGR6		(ccm_base + 0x80)
+#define MXC_CCM_CCGR7		(ccm_base + 0x84)
 
 /* Low-power Audio Playback Mode clock */
 static const char *lp_apm_sel[] = { "osc", };
@@ -129,7 +128,7 @@  static const char *mx51_spdif1_com_sel[] = { "spdif1_podf", "ssi2_root_gate", };
 static struct clk *clk[IMX5_CLK_END];
 static struct clk_onecell_data clk_data;
 
-static void __init mx5_clocks_common_init(void)
+static void __init mx5_clocks_common_init(void __iomem *ccm_base)
 {
 	int i;
 
@@ -363,6 +362,7 @@  static void __init mx5_clocks_common_init(void)
 
 static void __init mx50_clocks_init(struct device_node *np)
 {
+	void __iomem *ccm_base;
 	unsigned long r;
 	int i;
 
@@ -370,6 +370,9 @@  static void __init mx50_clocks_init(struct device_node *np)
 	clk[IMX5_CLK_PLL2_SW]		= imx_clk_pllv2("pll2_sw", "osc", MX53_DPLL2_BASE);
 	clk[IMX5_CLK_PLL3_SW]		= imx_clk_pllv2("pll3_sw", "osc", MX53_DPLL3_BASE);
 
+	ccm_base = of_iomap(np, 0);
+	WARN_ON(!ccm_base);
+
 	clk[IMX5_CLK_LP_APM]		= imx_clk_mux("lp_apm", MXC_CCM_CCSR, 10, 1,
 						lp_apm_sel, ARRAY_SIZE(lp_apm_sel));
 	clk[IMX5_CLK_ESDHC1_PER_GATE]	= imx_clk_gate2("esdhc1_per_gate", "esdhc_a_podf", MXC_CCM_CCGR3, 2);
@@ -399,7 +402,7 @@  static void __init mx50_clocks_init(struct device_node *np)
 	clk_data.clk_num = ARRAY_SIZE(clk);
 	of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data);
 
-	mx5_clocks_common_init();
+	mx5_clocks_common_init(ccm_base);
 
 	/* set SDHC root clock to 200MHZ*/
 	clk_set_rate(clk[IMX5_CLK_ESDHC_A_PODF], 200000000);
@@ -418,12 +421,17 @@  CLK_OF_DECLARE(imx50_ccm, "fsl,imx50-ccm", mx50_clocks_init);
 
 static void __init mx51_clocks_init(struct device_node *np)
 {
+	void __iomem *ccm_base;
 	int i;
 	u32 val;
 
 	clk[IMX5_CLK_PLL1_SW]		= imx_clk_pllv2("pll1_sw", "osc", MX51_DPLL1_BASE);
 	clk[IMX5_CLK_PLL2_SW]		= imx_clk_pllv2("pll2_sw", "osc", MX51_DPLL2_BASE);
 	clk[IMX5_CLK_PLL3_SW]		= imx_clk_pllv2("pll3_sw", "osc", MX51_DPLL3_BASE);
+
+	ccm_base = of_iomap(np, 0);
+	WARN_ON(!ccm_base);
+
 	clk[IMX5_CLK_LP_APM]		= imx_clk_mux("lp_apm", MXC_CCM_CCSR, 9, 1,
 						lp_apm_sel, ARRAY_SIZE(lp_apm_sel));
 	clk[IMX5_CLK_IPU_DI0_SEL]	= imx_clk_mux("ipu_di0_sel", MXC_CCM_CSCMR2, 26, 3,
@@ -465,7 +473,7 @@  static void __init mx51_clocks_init(struct device_node *np)
 	clk_data.clk_num = ARRAY_SIZE(clk);
 	of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data);
 
-	mx5_clocks_common_init();
+	mx5_clocks_common_init(ccm_base);
 
 	clk_register_clkdev(clk[IMX5_CLK_HSI2C_GATE], NULL, "imx21-i2c.2");
 	clk_register_clkdev(clk[IMX5_CLK_MX51_MIPI], "mipi_hsp", NULL);
@@ -517,6 +525,7 @@  CLK_OF_DECLARE(imx51_ccm, "fsl,imx51-ccm", mx51_clocks_init);
 
 static void __init mx53_clocks_init(struct device_node *np)
 {
+	void __iomem *ccm_base;
 	int i;
 	unsigned long r;
 
@@ -525,6 +534,9 @@  static void __init mx53_clocks_init(struct device_node *np)
 	clk[IMX5_CLK_PLL3_SW]		= imx_clk_pllv2("pll3_sw", "osc", MX53_DPLL3_BASE);
 	clk[IMX5_CLK_PLL4_SW]		= imx_clk_pllv2("pll4_sw", "osc", MX53_DPLL4_BASE);
 
+	ccm_base = of_iomap(np, 0);
+	WARN_ON(!ccm_base);
+
 	clk[IMX5_CLK_LP_APM]		= imx_clk_mux("lp_apm", MXC_CCM_CCSR, 10, 1,
 						lp_apm_sel, ARRAY_SIZE(lp_apm_sel));
 	clk[IMX5_CLK_LDB_DI1_DIV_3_5]	= imx_clk_fixed_factor("ldb_di1_div_3_5", "ldb_di1_sel", 2, 7);
@@ -583,7 +595,7 @@  static void __init mx53_clocks_init(struct device_node *np)
 	clk_data.clk_num = ARRAY_SIZE(clk);
 	of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data);
 
-	mx5_clocks_common_init();
+	mx5_clocks_common_init(ccm_base);
 
 	clk_register_clkdev(clk[IMX5_CLK_I2C3_GATE], NULL, "imx21-i2c.2");
 	clk_register_clkdev(clk[IMX5_CLK_FEC_GATE], NULL, "imx25-fec.0");