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ARM: OMAP3+: hwmod: Add AM33XX HWMOD data for davinci_mdio module

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This patch adds hwmod entry for davinci MDIO module,
creating parent<->child relationship between CPSW and MDIO module.

This Parent-child relation is required in order to use common resources
like, clock, but still maintaining the logical separation between them.

CPGMAC SubSystem consist of various sub-modules, like, mdio, cpdma,
cpsw, etc... These sub-modules are also used in some of Davinci
family of devices, so separate and independent platform devices &
drivers for CPSW and MDIO is implemented.
In case of AM33XX, the resources are shared and common register
bit-field is provided to control module/clock enable/disable,
makes it difficult to handle common resources from both drivers.

So the solution is, create parent<->child relationship between
CPGMAC & MDIO modules.

Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com>
Cc: Paul Walmsley <paul@pwsan.com>
Acked-by: Peter Korsgaard <jacmet@sunsite.dk>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Mugunthan V N 2012-11-14 09:07:58 +00:00 committed by David S. Miller
parent 71380f9bb1
commit 70384a6af0
1 changed files with 31 additions and 0 deletions
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31
arch/arm/mach-omap2/omap_hwmod_33xx_data.c
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@ -674,6 +674,7 @@ static struct omap_hwmod am33xx_cpgmac0_hwmod = {
.name = "cpgmac0",
.class = &am33xx_cpgmac0_hwmod_class,
.clkdm_name = "cpsw_125mhz_clkdm",
.flags = (HWMOD_SWSUP_SIDLE | HWMOD_SWSUP_MSTANDBY),
.mpu_irqs = am33xx_cpgmac0_irqs,
.main_clk = "cpsw_125mhz_gclk",
.prcm = {
@ -684,6 +685,20 @@ static struct omap_hwmod am33xx_cpgmac0_hwmod = {
},
};
/*
* mdio class
*/
static struct omap_hwmod_class am33xx_mdio_hwmod_class = {
.name = "davinci_mdio",
};
static struct omap_hwmod am33xx_mdio_hwmod = {
.name = "davinci_mdio",
.class = &am33xx_mdio_hwmod_class,
.clkdm_name = "cpsw_125mhz_clkdm",
.main_clk = "cpsw_125mhz_gclk",
};
/*
* dcan class
*/
@ -2501,6 +2516,21 @@ static struct omap_hwmod_ocp_if am33xx_l4_hs__cpgmac0 = {
.user = OCP_USER_MPU,
};
struct omap_hwmod_addr_space am33xx_mdio_addr_space[] = {
{
.pa_start = 0x4A101000,
.pa_end = 0x4A101000 + SZ_256 - 1,
},
{ }
};
struct omap_hwmod_ocp_if am33xx_cpgmac0__mdio = {
.master = &am33xx_cpgmac0_hwmod,
.slave = &am33xx_mdio_hwmod,
.addr = am33xx_mdio_addr_space,
.user = OCP_USER_MPU,
};
static struct omap_hwmod_addr_space am33xx_elm_addr_space[] = {
{
.pa_start = 0x48080000,
@ -3371,6 +3401,7 @@ static struct omap_hwmod_ocp_if *am33xx_hwmod_ocp_ifs[] __initdata = {
&am33xx_l3_main__tptc2,
&am33xx_l3_s__usbss,
&am33xx_l4_hs__cpgmac0,
&am33xx_cpgmac0__mdio,
NULL,
};