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ARM: shmobile: r8a7740: Prepare for reference DT setup
We need three steps to prepare for the new Armadillo reference DT board code:
- Split the device list into r8a7740_early_devices used by the old platform
data setup (board-armadillo.c) and r8a7740_devices_dt used by both
setup variants.
- Introduce new r8a7740_init_delay() to be more flexible about calling
shmobile_setup_delay().
- For the generic r8a7740 support, we switch to device tree setup for
the GIC, the irqpin devices and the I2C controllers.
This is slightly similar to commit 3b00f93426
"ARM: shmobile: sh73a0: Do not use early devices with DT reference"
Signed-off-by: Bastian Hecht <hechtb+renesas@gmail.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
This commit is contained in:
Bastian Hecht
Simon Horman
parent
f9b4df4a4d
commit
744fdc8dc0
@ -18,4 +18,121 @@
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compatible = "arm,cortex-a9";
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};
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};
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gic: interrupt-controller@c2800000 {
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compatible = "arm,cortex-a9-gic";
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#interrupt-cells = <3>;
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#address-cells = <1>;
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interrupt-controller;
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reg = <0xc2800000 0x1000>,
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<0xc2000000 0x1000>;
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};
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/* irqpin0: IRQ0 - IRQ7 */
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irqpin0: irqpin@e6900000 {
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compatible = "renesas,intc-irqpin";
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#interrupt-cells = <2>;
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interrupt-controller;
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reg = <0xe6900000 4>,
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<0xe6900010 4>,
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<0xe6900020 1>,
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<0xe6900040 1>,
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<0xe6900060 1>;
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interrupt-parent = <&gic>;
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interrupts = <0 149 0x4
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0 149 0x4
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0 149 0x4
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0 149 0x4
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0 149 0x4
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0 149 0x4
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0 149 0x4
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0 149 0x4>;
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};
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/* irqpin1: IRQ8 - IRQ15 */
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irqpin1: irqpin@e6900004 {
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compatible = "renesas,intc-irqpin";
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#interrupt-cells = <2>;
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interrupt-controller;
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reg = <0xe6900004 4>,
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<0xe6900014 4>,
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<0xe6900024 1>,
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<0xe6900044 1>,
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<0xe6900064 1>;
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interrupt-parent = <&gic>;
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interrupts = <0 149 0x4
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0 149 0x4
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0 149 0x4
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0 149 0x4
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0 149 0x4
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0 149 0x4
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0 149 0x4
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0 149 0x4>;
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};
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/* irqpin2: IRQ16 - IRQ23 */
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irqpin2: irqpin@e6900008 {
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compatible = "renesas,intc-irqpin";
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#interrupt-cells = <2>;
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interrupt-controller;
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reg = <0xe6900008 4>,
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<0xe6900018 4>,
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<0xe6900028 1>,
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<0xe6900048 1>,
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<0xe6900068 1>;
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interrupt-parent = <&gic>;
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interrupts = <0 149 0x4
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0 149 0x4
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0 149 0x4
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0 149 0x4
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0 149 0x4
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0 149 0x4
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0 149 0x4
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0 149 0x4>;
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};
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/* irqpin3: IRQ24 - IRQ31 */
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irqpin3: irqpin@e690000c {
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compatible = "renesas,intc-irqpin";
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#interrupt-cells = <2>;
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interrupt-controller;
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reg = <0xe690000c 4>,
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<0xe690001c 4>,
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<0xe690002c 1>,
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<0xe690004c 1>,
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<0xe690006c 1>;
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interrupt-parent = <&gic>;
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interrupts = <0 149 0x4
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0 149 0x4
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0 149 0x4
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0 149 0x4
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0 149 0x4
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0 149 0x4
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0 149 0x4
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0 149 0x4>;
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};
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i2c0: i2c@fff20000 {
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#address-cells = <1>;
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#size-cells = <0>;
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compatible = "renesas,rmobile-iic";
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reg = <0xfff20000 0x425>;
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interrupt-parent = <&gic>;
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interrupts = <0 201 0x4
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0 202 0x4
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0 203 0x4
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0 204 0x4>;
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};
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i2c1: i2c@e6c20000 {
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#address-cells = <1>;
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#size-cells = <0>;
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compatible = "renesas,rmobile-iic";
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reg = <0xe6c20000 0x425>;
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interrupt-parent = <&gic>;
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interrupts = <0 70 0x4
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0 71 0x4
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0 72 0x4
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0 73 0x4>;
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};
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};
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@ -533,11 +533,13 @@ enum {
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};
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extern void r8a7740_meram_workaround(void);
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extern void r8a7740_init_delay(void);
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extern void r8a7740_init_irq(void);
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extern void r8a7740_init_irq_of(void);
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extern void r8a7740_map_io(void);
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extern void r8a7740_add_early_devices(void);
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extern void r8a7740_add_standard_devices(void);
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extern void r8a7740_add_standard_devices_dt(void);
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extern void r8a7740_clock_init(u8 md_ck);
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extern void r8a7740_pinmux_init(void);
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extern void r8a7740_pm_init(void);
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@ -531,11 +531,7 @@ static struct platform_device ipmmu_device = {
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.num_resources = ARRAY_SIZE(ipmmu_resources),
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};
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static struct platform_device *r8a7740_early_devices[] __initdata = {
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&irqpin0_device,
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&irqpin1_device,
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&irqpin2_device,
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&irqpin3_device,
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static struct platform_device *r8a7740_devices_dt[] __initdata = {
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&scif0_device,
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&scif1_device,
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&scif2_device,
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@ -546,6 +542,13 @@ static struct platform_device *r8a7740_early_devices[] __initdata = {
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&scif7_device,
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&scifb_device,
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&cmt10_device,
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};
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static struct platform_device *r8a7740_early_devices[] __initdata = {
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&irqpin0_device,
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&irqpin1_device,
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&irqpin2_device,
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&irqpin3_device,
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&tmu00_device,
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&tmu01_device,
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&tmu02_device,
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@ -965,6 +968,8 @@ void __init r8a7740_add_standard_devices(void)
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/* add devices */
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platform_add_devices(r8a7740_early_devices,
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ARRAY_SIZE(r8a7740_early_devices));
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platform_add_devices(r8a7740_devices_dt,
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ARRAY_SIZE(r8a7740_devices_dt));
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platform_add_devices(r8a7740_late_devices,
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ARRAY_SIZE(r8a7740_late_devices));
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@ -986,6 +991,8 @@ void __init r8a7740_add_early_devices(void)
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{
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early_platform_add_devices(r8a7740_early_devices,
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ARRAY_SIZE(r8a7740_early_devices));
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early_platform_add_devices(r8a7740_devices_dt,
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ARRAY_SIZE(r8a7740_devices_dt));
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/* setup early console here as well */
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shmobile_setup_console();
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@ -993,33 +1000,29 @@ void __init r8a7740_add_early_devices(void)
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#ifdef CONFIG_USE_OF
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void __init r8a7740_add_early_devices_dt(void)
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{
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shmobile_setup_delay(800, 1, 3); /* Cortex-A9 @ 800MHz */
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early_platform_add_devices(r8a7740_early_devices,
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ARRAY_SIZE(r8a7740_early_devices));
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/* setup early console here as well */
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shmobile_setup_console();
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}
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static const struct of_dev_auxdata r8a7740_auxdata_lookup[] __initconst = {
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{ }
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};
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void __init r8a7740_add_standard_devices_dt(void)
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{
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/* clocks are setup late during boot in the case of DT */
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r8a7740_clock_init(0);
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platform_add_devices(r8a7740_early_devices,
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ARRAY_SIZE(r8a7740_early_devices));
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platform_add_devices(r8a7740_devices_dt,
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ARRAY_SIZE(r8a7740_devices_dt));
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of_platform_populate(NULL, of_default_bus_match_table,
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r8a7740_auxdata_lookup, NULL);
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}
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void __init r8a7740_init_delay(void)
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{
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shmobile_setup_delay(800, 1, 3); /* Cortex-A9 @ 800MHz */
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};
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static void __init r8a7740_generic_init(void)
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{
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r8a7740_clock_init(0);
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r8a7740_add_standard_devices_dt();
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}
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static const char *r8a7740_boards_compat_dt[] __initdata = {
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"renesas,r8a7740",
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NULL,
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@ -1027,9 +1030,10 @@ static const char *r8a7740_boards_compat_dt[] __initdata = {
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DT_MACHINE_START(R8A7740_DT, "Generic R8A7740 (Flattened Device Tree)")
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.map_io = r8a7740_map_io,
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.init_early = r8a7740_add_early_devices_dt,
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.init_irq = r8a7740_init_irq,
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.init_machine = r8a7740_add_standard_devices_dt,
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.init_early = r8a7740_init_delay,
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.init_irq = r8a7740_init_irq_of,
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.init_machine = r8a7740_generic_init,
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.init_time = shmobile_timer_init,
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.dt_compat = r8a7740_boards_compat_dt,
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MACHINE_END
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