[PATCH 13/20] ARM: imx5: use dynamic mapping for CCM block
Shawn Guo
shawn.guo at freescale.com
Tue May 20 01:45:31 PDT 2014
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 at freescale.com>
---
arch/arm/mach-imx/clk-imx51-imx53.c | 90 +++++++++++++++++++++----------------
1 file changed, 51 insertions(+), 39 deletions(-)
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");
--
1.8.3.2
More information about the linux-arm-kernel
mailing list