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ARM: imx5: use dynamic mapping for DPLL block 

Replace the static mapping of DPLL block with dynamic mapping by
calling ioremap().  Ideally, this should be done by calling of_iomap(),
so that the physical address of DPLL can also be retrieved from device
tree.  But unfortunately, DPLL blocks are not defined in DT in the first
place.  So to maintain the compatibility of existing DTB, we use
ioremap() with physical address defines in the code.

Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
This commit is contained in:
Shawn Guo 2014-05-20 13:08:45 +08:00
parent 18c1d98952
commit 20484c13ca
1 changed files with 48 additions and 17 deletions
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65
arch/arm/mach-imx/clk-imx51-imx53.c
View File

@ -22,13 +22,14 @@
#include "common.h"
#include "hardware.h"
#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)
#define MX53_DPLL1_BASE MX53_IO_ADDRESS(MX53_PLL1_BASE_ADDR)
#define MX53_DPLL2_BASE MX53_IO_ADDRESS(MX53_PLL2_BASE_ADDR)
#define MX53_DPLL3_BASE MX53_IO_ADDRESS(MX53_PLL3_BASE_ADDR)
#define MX53_DPLL4_BASE MX53_IO_ADDRESS(MX53_PLL4_BASE_ADDR)
#define MX51_DPLL1_BASE 0x83f80000
#define MX51_DPLL2_BASE 0x83f84000
#define MX51_DPLL3_BASE 0x83f88000
#define MX53_DPLL1_BASE 0x63f80000
#define MX53_DPLL2_BASE 0x63f84000
#define MX53_DPLL3_BASE 0x63f88000
#define MX53_DPLL4_BASE 0x63f8c000
#define MXC_CCM_CCR (ccm_base + 0x00)
#define MXC_CCM_CCDR (ccm_base + 0x04)
@ -363,12 +364,21 @@ static void __init mx5_clocks_common_init(void __iomem *ccm_base)
static void __init mx50_clocks_init(struct device_node *np)
{
void __iomem *ccm_base;
void __iomem *pll_base;
unsigned long r;
int i;
clk[IMX5_CLK_PLL1_SW] = imx_clk_pllv2("pll1_sw", "osc", MX53_DPLL1_BASE);
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);
pll_base = ioremap(MX53_DPLL1_BASE, SZ_16K);
WARN_ON(!pll_base);
clk[IMX5_CLK_PLL1_SW] = imx_clk_pllv2("pll1_sw", "osc", pll_base);
pll_base = ioremap(MX53_DPLL2_BASE, SZ_16K);
WARN_ON(!pll_base);
clk[IMX5_CLK_PLL2_SW] = imx_clk_pllv2("pll2_sw", "osc", pll_base);
pll_base = ioremap(MX53_DPLL3_BASE, SZ_16K);
WARN_ON(!pll_base);
clk[IMX5_CLK_PLL3_SW] = imx_clk_pllv2("pll3_sw", "osc", pll_base);
ccm_base = of_iomap(np, 0);
WARN_ON(!ccm_base);
@ -422,12 +432,21 @@ 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;
void __iomem *pll_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);
pll_base = ioremap(MX51_DPLL1_BASE, SZ_16K);
WARN_ON(!pll_base);
clk[IMX5_CLK_PLL1_SW] = imx_clk_pllv2("pll1_sw", "osc", pll_base);
pll_base = ioremap(MX51_DPLL2_BASE, SZ_16K);
WARN_ON(!pll_base);
clk[IMX5_CLK_PLL2_SW] = imx_clk_pllv2("pll2_sw", "osc", pll_base);
pll_base = ioremap(MX51_DPLL3_BASE, SZ_16K);
WARN_ON(!pll_base);
clk[IMX5_CLK_PLL3_SW] = imx_clk_pllv2("pll3_sw", "osc", pll_base);
ccm_base = of_iomap(np, 0);
WARN_ON(!ccm_base);
@ -526,13 +545,25 @@ 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;
void __iomem *pll_base;
int i;
unsigned long r;
clk[IMX5_CLK_PLL1_SW] = imx_clk_pllv2("pll1_sw", "osc", MX53_DPLL1_BASE);
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);
clk[IMX5_CLK_PLL4_SW] = imx_clk_pllv2("pll4_sw", "osc", MX53_DPLL4_BASE);
pll_base = ioremap(MX53_DPLL1_BASE, SZ_16K);
WARN_ON(!pll_base);
clk[IMX5_CLK_PLL1_SW] = imx_clk_pllv2("pll1_sw", "osc", pll_base);
pll_base = ioremap(MX53_DPLL2_BASE, SZ_16K);
WARN_ON(!pll_base);
clk[IMX5_CLK_PLL2_SW] = imx_clk_pllv2("pll2_sw", "osc", pll_base);
pll_base = ioremap(MX53_DPLL3_BASE, SZ_16K);
WARN_ON(!pll_base);
clk[IMX5_CLK_PLL3_SW] = imx_clk_pllv2("pll3_sw", "osc", pll_base);
pll_base = ioremap(MX53_DPLL4_BASE, SZ_16K);
WARN_ON(!pll_base);
clk[IMX5_CLK_PLL4_SW] = imx_clk_pllv2("pll4_sw", "osc", pll_base);
ccm_base = of_iomap(np, 0);
WARN_ON(!ccm_base);