ARM: imx5: use dynamic mapping for CCM block

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>

diff --git a/arch/arm/mach-imx/clk-imx51-imx53.c b/arch/arm/mach-imx/clk-imx51-imx53.c
index c8c88df7384d19be79ee5e6096c50110d2fe594f..9eb54a8e5dcead36fcdb72e95a65d98bf21b58df 100644 (file)
--- 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");