clk: renesas: Updates for v4.10 (take two)
- Add R-Car RST driver for obtaining mode pin state, and move the related functionality from platform code to DT, - Add r8a7743 and r8a7745 CPG Core Clock Definitions. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAABAgAGBQJYIJj/AAoJEEgEtLw/Ve773fgP/3yhgJLa6zoYzFE4lS5q/+vk 95DAqkGrc9D+QzCw1/YAb8w2zqr9kigwBcwc9xlv9wQ/5Nx63WN9jgccw1Kd2xhU OaKhgyHpeXpH9MM46TRVJ5Txu7xLVofxtgxGv4ED43sNwZinrH9PrC/ELgQWgbq+ SQTVjE4bKqANNugt91UzPIzL5YPeJvX02SlFoDjbS3XNg5/cTjAaidVW24Ed8x5S OAUkC4chm81Jz4B7M5QcVy4vdfb9aE/m7d5a6iy6nE5EopH6Puu8RwL0SzvltDp4 AxIj5ZslOKhvqCKvVlp2ALlBeZ1rOXr5KsOdHHN+rkMiaR8a8agv7y/H/gJSbwiZ x7oI0QDiS5/6tYDxx67KtGECMAcSK0b0p/rWziYw9C5BDuvuMe5HhxN9fesHLUOx Yq6f0GwveUgWfcHIjcEh6Htj4dUfXaxiTgZSF1Dgp5SvW9fPhg40Rz3+ahnT40rP 8Ke/W5M5QZ2f+L51l3QiZ3NtX1kWLr1H8GExV15Cm08aBWx7p/8fvdqpv1EcVhiW dEnhtPBVf8O/LiZ6eS+0aBQS22fl9u06s3d/vXQoO9kaCcK+BWP9cB+5CsieTD6s D/3iOq4da3OnOjTcmIQEKEsnrtJq5qxBOZ52Fk422Wk/EX9Bwl+/ggmXhchiGn4V I28aLLIUHIfmOMb5H23E =Pd5n -----END PGP SIGNATURE----- Merge tag 'clk-renesas-for-v4.10-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers into clk-next Pull Renesas clk driver updates from Geerty Uytterhoeven: - Add R-Car RST driver for obtaining mode pin state, and move the related functionality from platform code to DT, - Add r8a7743 and r8a7745 CPG Core Clock Definitions. The commits here are intermingled with arm-soc material because of the hard dependency we're breaking between mach code and driver code. We're replacing that with a driver dependency between the soc driver and the clk driver. * tag 'clk-renesas-for-v4.10-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers: (25 commits) clk: renesas: Add r8a7745 CPG Core Clock Definitions clk: renesas: Add r8a7743 CPG Core Clock Definitions clk: renesas: rcar-gen2: Remove obsolete rcar_gen2_clocks_init() clk: renesas: r8a7779: Remove obsolete r8a7779_clocks_init() clk: renesas: r8a7778: Remove obsolete r8a7778_clocks_init() ARM: shmobile: rcar-gen2: Stop passing mode pins state to clock driver ARM: shmobile: r8a7779: Stop passing mode pins state to clock driver ARM: shmobile: r8a7778: Stop passing mode pins state to clock driver clk: renesas: rcar-gen3-cpg: Remove obsolete rcar_gen3_read_mode_pins() clk: renesas: r8a7796: Obtain mode pin values from R-Car RST driver clk: renesas: r8a7795: Obtain mode pin values from R-Car RST driver clk: renesas: rcar-gen2: Obtain mode pin values using RST driver clk: renesas: r8a7779: Obtain mode pin values from R-Car RST driver clk: renesas: r8a7778: Obtain mode pin values using R-Car RST driver arm64: renesas: r8a7796 dtsi: Add device node for RST module arm64: renesas: r8a7795 dtsi: Add device node for RST module ARM: dts: r8a7794: Add device node for RST module ARM: dts: r8a7793: Add device node for RST module ARM: dts: r8a7792: Add device node for RST module ARM: dts: r8a7791: Add device node for RST module ...
This commit is contained in:
commit
54fd1b3bc4
26 changed files with 333 additions and 100 deletions
37
Documentation/devicetree/bindings/reset/renesas,rst.txt
Normal file
37
Documentation/devicetree/bindings/reset/renesas,rst.txt
Normal file
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@ -0,0 +1,37 @@
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DT bindings for the Renesas R-Car and RZ/G Reset Controllers
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The R-Car and RZ/G Reset Controllers provide reset control, and implement the
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following functions:
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- Latching of the levels on mode pins when PRESET# is negated,
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- Mode monitoring register,
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- Reset control of peripheral devices (on R-Car Gen1),
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- Watchdog timer (on R-Car Gen1),
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- Register-based reset control and boot address registers for the various CPU
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cores (on R-Car Gen2 and Gen3, and on RZ/G).
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Required properties:
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- compatible: Should be
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- "renesas,<soctype>-reset-wdt" for R-Car Gen1,
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- "renesas,<soctype>-rst" for R-Car Gen2 and Gen3, and RZ/G
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Examples with soctypes are:
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- "renesas,r8a7743-rst" (RZ/G1M)
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- "renesas,r8a7745-rst" (RZ/G1E)
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- "renesas,r8a7778-reset-wdt" (R-Car M1A)
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- "renesas,r8a7779-reset-wdt" (R-Car H1)
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- "renesas,r8a7790-rst" (R-Car H2)
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- "renesas,r8a7791-rst" (R-Car M2-W)
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- "renesas,r8a7792-rst" (R-Car V2H
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- "renesas,r8a7793-rst" (R-Car M2-N)
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- "renesas,r8a7794-rst" (R-Car E2)
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- "renesas,r8a7795-rst" (R-Car H3)
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- "renesas,r8a7796-rst" (R-Car M3-W)
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- reg: Address start and address range for the device.
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Example:
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rst: reset-controller@e6160000 {
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compatible = "renesas,r8a7795-rst";
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reg = <0 0xe6160000 0 0x0200>;
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};
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@ -626,4 +626,9 @@
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"sru-src6", "sru-src7", "sru-src8";
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};
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};
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rst: reset-controller@ffcc0000 {
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compatible = "renesas,r8a7778-reset-wdt";
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reg = <0xffcc0000 0x40>;
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};
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};
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@ -590,6 +590,11 @@
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};
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};
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rst: reset-controller@ffcc0000 {
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compatible = "renesas,r8a7779-reset-wdt";
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reg = <0xffcc0000 0x48>;
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};
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sysc: system-controller@ffd85000 {
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compatible = "renesas,r8a7779-sysc";
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reg = <0xffd85000 0x0200>;
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@ -1471,6 +1471,11 @@
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};
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};
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rst: reset-controller@e6160000 {
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compatible = "renesas,r8a7790-rst";
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reg = <0 0xe6160000 0 0x0100>;
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};
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sysc: system-controller@e6180000 {
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compatible = "renesas,r8a7790-sysc";
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reg = <0 0xe6180000 0 0x0200>;
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@ -1482,6 +1482,11 @@
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};
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};
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rst: reset-controller@e6160000 {
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compatible = "renesas,r8a7791-rst";
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reg = <0 0xe6160000 0 0x0100>;
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};
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sysc: system-controller@e6180000 {
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compatible = "renesas,r8a7791-sysc";
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reg = <0 0xe6180000 0 0x0200>;
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@ -118,6 +118,11 @@
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IRQ_TYPE_LEVEL_LOW)>;
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};
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rst: reset-controller@e6160000 {
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compatible = "renesas,r8a7792-rst";
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reg = <0 0xe6160000 0 0x0100>;
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};
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sysc: system-controller@e6180000 {
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compatible = "renesas,r8a7792-sysc";
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reg = <0 0xe6180000 0 0x0200>;
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@ -1279,6 +1279,11 @@
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};
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};
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rst: reset-controller@e6160000 {
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compatible = "renesas,r8a7793-rst";
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reg = <0 0xe6160000 0 0x0100>;
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};
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sysc: system-controller@e6180000 {
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compatible = "renesas,r8a7793-sysc";
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reg = <0 0xe6180000 0 0x0200>;
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@ -1375,6 +1375,11 @@
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};
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};
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rst: reset-controller@e6160000 {
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compatible = "renesas,r8a7794-rst";
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reg = <0 0xe6160000 0 0x0100>;
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};
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sysc: system-controller@e6180000 {
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compatible = "renesas,r8a7794-sysc";
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reg = <0 0xe6180000 0 0x0200>;
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@ -15,7 +15,6 @@
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* GNU General Public License for more details.
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*/
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#include <linux/clk/renesas.h>
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#include <linux/io.h>
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#include <linux/irqchip.h>
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@ -23,19 +22,6 @@
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#include "common.h"
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#define MODEMR 0xffcc0020
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static void __init r8a7778_timer_init(void)
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{
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u32 mode;
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void __iomem *modemr = ioremap_nocache(MODEMR, 4);
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BUG_ON(!modemr);
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mode = ioread32(modemr);
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iounmap(modemr);
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r8a7778_clocks_init(mode);
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}
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#define INT2SMSKCR0 0x82288 /* 0xfe782288 */
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#define INT2SMSKCR1 0x8228c /* 0xfe78228c */
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@ -70,6 +56,5 @@ DT_MACHINE_START(R8A7778_DT, "Generic R8A7778 (Flattened Device Tree)")
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.init_early = shmobile_init_delay,
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.init_irq = r8a7778_init_irq_dt,
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.init_late = shmobile_init_late,
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.init_time = r8a7778_timer_init,
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.dt_compat = r8a7778_compat_dt,
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MACHINE_END
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@ -14,8 +14,6 @@
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <linux/clk/renesas.h>
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#include <linux/clocksource.h>
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#include <linux/init.h>
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#include <linux/irq.h>
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#include <linux/irqchip.h>
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@ -76,30 +74,6 @@ static void __init r8a7779_init_irq_dt(void)
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__raw_writel(0x003fee3f, INT2SMSKCR4);
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}
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#define MODEMR 0xffcc0020
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static u32 __init r8a7779_read_mode_pins(void)
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{
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static u32 mode;
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static bool mode_valid;
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if (!mode_valid) {
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void __iomem *modemr = ioremap_nocache(MODEMR, PAGE_SIZE);
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BUG_ON(!modemr);
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mode = ioread32(modemr);
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iounmap(modemr);
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mode_valid = true;
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}
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return mode;
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}
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static void __init r8a7779_init_time(void)
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{
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r8a7779_clocks_init(r8a7779_read_mode_pins());
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clocksource_probe();
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}
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static const char *const r8a7779_compat_dt[] __initconst = {
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"renesas,r8a7779",
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NULL,
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@ -109,7 +83,6 @@ DT_MACHINE_START(R8A7779_DT, "Generic R8A7779 (Flattened Device Tree)")
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.smp = smp_ops(r8a7779_smp_ops),
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.map_io = r8a7779_map_io,
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.init_early = shmobile_init_delay,
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.init_time = r8a7779_init_time,
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.init_irq = r8a7779_init_irq_dt,
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.init_late = shmobile_init_late,
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.dt_compat = r8a7779_compat_dt,
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@ -15,7 +15,7 @@
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* GNU General Public License for more details.
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*/
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#include <linux/clk/renesas.h>
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#include <linux/clk-provider.h>
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#include <linux/clocksource.h>
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#include <linux/device.h>
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#include <linux/dma-contiguous.h>
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@ -71,7 +71,6 @@ static unsigned int __init get_extal_freq(void)
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void __init rcar_gen2_timer_init(void)
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{
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u32 mode = rcar_gen2_read_mode_pins();
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#ifdef CONFIG_ARM_ARCH_TIMER
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void __iomem *base;
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u32 freq;
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@ -130,7 +129,7 @@ void __init rcar_gen2_timer_init(void)
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iounmap(base);
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#endif /* CONFIG_ARM_ARCH_TIMER */
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rcar_gen2_clocks_init(mode);
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of_clk_init(NULL);
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clocksource_probe();
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}
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@ -321,6 +321,11 @@
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#power-domain-cells = <0>;
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};
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rst: reset-controller@e6160000 {
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compatible = "renesas,r8a7795-rst";
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reg = <0 0xe6160000 0 0x0200>;
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};
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sysc: system-controller@e6180000 {
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compatible = "renesas,r8a7795-sysc";
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reg = <0 0xe6180000 0 0x0400>;
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@ -233,6 +233,11 @@
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#power-domain-cells = <0>;
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};
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rst: reset-controller@e6160000 {
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compatible = "renesas,r8a7796-rst";
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reg = <0 0xe6160000 0 0x0200>;
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};
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sysc: system-controller@e6180000 {
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compatible = "renesas,r8a7796-sysc";
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reg = <0 0xe6180000 0 0x0400>;
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@ -12,6 +12,7 @@
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#include <linux/clk/renesas.h>
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#include <linux/of_address.h>
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#include <linux/slab.h>
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#include <linux/soc/renesas/rcar-rst.h>
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struct r8a7778_cpg {
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struct clk_onecell_data data;
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@ -83,6 +84,18 @@ static void __init r8a7778_cpg_clocks_init(struct device_node *np)
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struct clk **clks;
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unsigned int i;
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int num_clks;
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u32 mode;
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if (rcar_rst_read_mode_pins(&mode))
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return;
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BUG_ON(!(mode & BIT(19)));
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cpg_mode_rates = (!!(mode & BIT(18)) << 2) |
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(!!(mode & BIT(12)) << 1) |
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(!!(mode & BIT(11)));
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cpg_mode_divs = (!!(mode & BIT(2)) << 1) |
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(!!(mode & BIT(1)));
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num_clks = of_property_count_strings(np, "clock-output-names");
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if (num_clks < 0) {
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|
@ -130,16 +143,3 @@ static void __init r8a7778_cpg_clocks_init(struct device_node *np)
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CLK_OF_DECLARE(r8a7778_cpg_clks, "renesas,r8a7778-cpg-clocks",
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r8a7778_cpg_clocks_init);
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void __init r8a7778_clocks_init(u32 mode)
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{
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BUG_ON(!(mode & BIT(19)));
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cpg_mode_rates = (!!(mode & BIT(18)) << 2) |
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(!!(mode & BIT(12)) << 1) |
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(!!(mode & BIT(11)));
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cpg_mode_divs = (!!(mode & BIT(2)) << 1) |
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(!!(mode & BIT(1)));
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of_clk_init(NULL);
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}
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|
|
|
@ -18,6 +18,7 @@
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#include <linux/of_address.h>
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#include <linux/slab.h>
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#include <linux/spinlock.h>
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#include <linux/soc/renesas/rcar-rst.h>
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#include <dt-bindings/clock/r8a7779-clock.h>
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|
@ -88,8 +89,6 @@ static const unsigned int cpg_plla_mult[4] __initconst = { 42, 48, 56, 64 };
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* Initialization
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*/
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static u32 cpg_mode __initdata;
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static struct clk * __init
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r8a7779_cpg_register_clock(struct device_node *np, struct r8a7779_cpg *cpg,
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const struct cpg_clk_config *config,
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|
@ -127,6 +126,10 @@ static void __init r8a7779_cpg_clocks_init(struct device_node *np)
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struct clk **clks;
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unsigned int i, plla_mult;
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int num_clks;
|
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u32 mode;
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if (rcar_rst_read_mode_pins(&mode))
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return;
|
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num_clks = of_property_count_strings(np, "clock-output-names");
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if (num_clks < 0) {
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|
@ -148,8 +151,8 @@ static void __init r8a7779_cpg_clocks_init(struct device_node *np)
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cpg->data.clks = clks;
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cpg->data.clk_num = num_clks;
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config = &cpg_clk_configs[CPG_CLK_CONFIG_INDEX(cpg_mode)];
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plla_mult = cpg_plla_mult[CPG_PLLA_MULT_INDEX(cpg_mode)];
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config = &cpg_clk_configs[CPG_CLK_CONFIG_INDEX(mode)];
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plla_mult = cpg_plla_mult[CPG_PLLA_MULT_INDEX(mode)];
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for (i = 0; i < num_clks; ++i) {
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const char *name;
|
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|
@ -173,10 +176,3 @@ static void __init r8a7779_cpg_clocks_init(struct device_node *np)
|
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}
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CLK_OF_DECLARE(r8a7779_cpg_clks, "renesas,r8a7779-cpg-clocks",
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r8a7779_cpg_clocks_init);
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|
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void __init r8a7779_clocks_init(u32 mode)
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{
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cpg_mode = mode;
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|
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of_clk_init(NULL);
|
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}
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|
|
|
@ -19,6 +19,7 @@
|
|||
#include <linux/of_address.h>
|
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#include <linux/slab.h>
|
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#include <linux/spinlock.h>
|
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#include <linux/soc/renesas/rcar-rst.h>
|
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|
||||
struct rcar_gen2_cpg {
|
||||
struct clk_onecell_data data;
|
||||
|
@ -364,6 +365,23 @@ rcar_gen2_cpg_register_clock(struct device_node *np, struct rcar_gen2_cpg *cpg,
|
|||
4, 0, table, &cpg->lock);
|
||||
}
|
||||
|
||||
/*
|
||||
* Reset register definitions.
|
||||
*/
|
||||
#define MODEMR 0xe6160060
|
||||
|
||||
static u32 __init rcar_gen2_read_mode_pins(void)
|
||||
{
|
||||
void __iomem *modemr = ioremap_nocache(MODEMR, 4);
|
||||
u32 mode;
|
||||
|
||||
BUG_ON(!modemr);
|
||||
mode = ioread32(modemr);
|
||||
iounmap(modemr);
|
||||
|
||||
return mode;
|
||||
}
|
||||
|
||||
static void __init rcar_gen2_cpg_clocks_init(struct device_node *np)
|
||||
{
|
||||
const struct cpg_pll_config *config;
|
||||
|
@ -372,6 +390,13 @@ static void __init rcar_gen2_cpg_clocks_init(struct device_node *np)
|
|||
unsigned int i;
|
||||
int num_clks;
|
||||
|
||||
if (rcar_rst_read_mode_pins(&cpg_mode)) {
|
||||
/* Backward-compatibility with old DT */
|
||||
pr_warn("%s: failed to obtain mode pins from RST\n",
|
||||
np->full_name);
|
||||
cpg_mode = rcar_gen2_read_mode_pins();
|
||||
}
|
||||
|
||||
num_clks = of_property_count_strings(np, "clock-output-names");
|
||||
if (num_clks < 0) {
|
||||
pr_err("%s: failed to count clocks\n", __func__);
|
||||
|
@ -420,10 +445,3 @@ static void __init rcar_gen2_cpg_clocks_init(struct device_node *np)
|
|||
}
|
||||
CLK_OF_DECLARE(rcar_gen2_cpg_clks, "renesas,rcar-gen2-cpg-clocks",
|
||||
rcar_gen2_cpg_clocks_init);
|
||||
|
||||
void __init rcar_gen2_clocks_init(u32 mode)
|
||||
{
|
||||
cpg_mode = mode;
|
||||
|
||||
of_clk_init(NULL);
|
||||
}
|
||||
|
|
|
@ -15,6 +15,7 @@
|
|||
#include <linux/device.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/soc/renesas/rcar-rst.h>
|
||||
|
||||
#include <dt-bindings/clock/r8a7795-cpg-mssr.h>
|
||||
|
||||
|
@ -311,7 +312,12 @@ static const struct rcar_gen3_cpg_pll_config cpg_pll_configs[16] __initconst = {
|
|||
static int __init r8a7795_cpg_mssr_init(struct device *dev)
|
||||
{
|
||||
const struct rcar_gen3_cpg_pll_config *cpg_pll_config;
|
||||
u32 cpg_mode = rcar_gen3_read_mode_pins();
|
||||
u32 cpg_mode;
|
||||
int error;
|
||||
|
||||
error = rcar_rst_read_mode_pins(&cpg_mode);
|
||||
if (error)
|
||||
return error;
|
||||
|
||||
cpg_pll_config = &cpg_pll_configs[CPG_PLL_CONFIG_INDEX(cpg_mode)];
|
||||
if (!cpg_pll_config->extal_div) {
|
||||
|
|
|
@ -16,6 +16,7 @@
|
|||
#include <linux/device.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/soc/renesas/rcar-rst.h>
|
||||
|
||||
#include <dt-bindings/clock/r8a7796-cpg-mssr.h>
|
||||
|
||||
|
@ -235,7 +236,12 @@ static const struct rcar_gen3_cpg_pll_config cpg_pll_configs[16] __initconst = {
|
|||
static int __init r8a7796_cpg_mssr_init(struct device *dev)
|
||||
{
|
||||
const struct rcar_gen3_cpg_pll_config *cpg_pll_config;
|
||||
u32 cpg_mode = rcar_gen3_read_mode_pins();
|
||||
u32 cpg_mode;
|
||||
int error;
|
||||
|
||||
error = rcar_rst_read_mode_pins(&cpg_mode);
|
||||
if (error)
|
||||
return error;
|
||||
|
||||
cpg_pll_config = &cpg_pll_configs[CPG_PLL_CONFIG_INDEX(cpg_mode)];
|
||||
if (!cpg_pll_config->extal_div) {
|
||||
|
|
|
@ -333,23 +333,6 @@ struct clk * __init rcar_gen3_cpg_clk_register(struct device *dev,
|
|||
__clk_get_name(parent), 0, mult, div);
|
||||
}
|
||||
|
||||
/*
|
||||
* Reset register definitions.
|
||||
*/
|
||||
#define MODEMR 0xe6160060
|
||||
|
||||
u32 __init rcar_gen3_read_mode_pins(void)
|
||||
{
|
||||
void __iomem *modemr = ioremap_nocache(MODEMR, 4);
|
||||
u32 mode;
|
||||
|
||||
BUG_ON(!modemr);
|
||||
mode = ioread32(modemr);
|
||||
iounmap(modemr);
|
||||
|
||||
return mode;
|
||||
}
|
||||
|
||||
int __init rcar_gen3_cpg_init(const struct rcar_gen3_cpg_pll_config *config,
|
||||
unsigned int clk_extalr)
|
||||
{
|
||||
|
|
|
@ -33,7 +33,6 @@ struct rcar_gen3_cpg_pll_config {
|
|||
|
||||
#define CPG_RCKCR 0x240
|
||||
|
||||
u32 rcar_gen3_read_mode_pins(void);
|
||||
struct clk *rcar_gen3_cpg_clk_register(struct device *dev,
|
||||
const struct cpg_core_clk *core, const struct cpg_mssr_info *info,
|
||||
struct clk **clks, void __iomem *base);
|
||||
|
|
|
@ -1,3 +1,8 @@
|
|||
obj-$(CONFIG_ARCH_RCAR_GEN1) += rcar-rst.o
|
||||
obj-$(CONFIG_ARCH_RCAR_GEN2) += rcar-rst.o
|
||||
obj-$(CONFIG_ARCH_R8A7795) += rcar-rst.o
|
||||
obj-$(CONFIG_ARCH_R8A7796) += rcar-rst.o
|
||||
|
||||
obj-$(CONFIG_ARCH_R8A7779) += rcar-sysc.o r8a7779-sysc.o
|
||||
obj-$(CONFIG_ARCH_R8A7790) += rcar-sysc.o r8a7790-sysc.o
|
||||
obj-$(CONFIG_ARCH_R8A7791) += rcar-sysc.o r8a7791-sysc.o
|
||||
|
|
92
drivers/soc/renesas/rcar-rst.c
Normal file
92
drivers/soc/renesas/rcar-rst.c
Normal file
|
@ -0,0 +1,92 @@
|
|||
/*
|
||||
* R-Car Gen1 RESET/WDT, R-Car Gen2, Gen3, and RZ/G RST Driver
|
||||
*
|
||||
* Copyright (C) 2016 Glider bvba
|
||||
*
|
||||
* This file is subject to the terms and conditions of the GNU General Public
|
||||
* License. See the file "COPYING" in the main directory of this archive
|
||||
* for more details.
|
||||
*/
|
||||
|
||||
#include <linux/err.h>
|
||||
#include <linux/io.h>
|
||||
#include <linux/of_address.h>
|
||||
#include <linux/soc/renesas/rcar-rst.h>
|
||||
|
||||
struct rst_config {
|
||||
unsigned int modemr; /* Mode Monitoring Register Offset */
|
||||
};
|
||||
|
||||
static const struct rst_config rcar_rst_gen1 __initconst = {
|
||||
.modemr = 0x20,
|
||||
};
|
||||
|
||||
static const struct rst_config rcar_rst_gen2 __initconst = {
|
||||
.modemr = 0x60,
|
||||
};
|
||||
|
||||
static const struct of_device_id rcar_rst_matches[] __initconst = {
|
||||
/* RZ/G is handled like R-Car Gen2 */
|
||||
{ .compatible = "renesas,r8a7743-rst", .data = &rcar_rst_gen2 },
|
||||
{ .compatible = "renesas,r8a7745-rst", .data = &rcar_rst_gen2 },
|
||||
/* R-Car Gen1 */
|
||||
{ .compatible = "renesas,r8a7778-reset-wdt", .data = &rcar_rst_gen1 },
|
||||
{ .compatible = "renesas,r8a7779-reset-wdt", .data = &rcar_rst_gen1 },
|
||||
/* R-Car Gen2 */
|
||||
{ .compatible = "renesas,r8a7790-rst", .data = &rcar_rst_gen2 },
|
||||
{ .compatible = "renesas,r8a7791-rst", .data = &rcar_rst_gen2 },
|
||||
{ .compatible = "renesas,r8a7792-rst", .data = &rcar_rst_gen2 },
|
||||
{ .compatible = "renesas,r8a7793-rst", .data = &rcar_rst_gen2 },
|
||||
{ .compatible = "renesas,r8a7794-rst", .data = &rcar_rst_gen2 },
|
||||
/* R-Car Gen3 is handled like R-Car Gen2 */
|
||||
{ .compatible = "renesas,r8a7795-rst", .data = &rcar_rst_gen2 },
|
||||
{ .compatible = "renesas,r8a7796-rst", .data = &rcar_rst_gen2 },
|
||||
{ /* sentinel */ }
|
||||
};
|
||||
|
||||
static void __iomem *rcar_rst_base __initdata;
|
||||
static u32 saved_mode __initdata;
|
||||
|
||||
static int __init rcar_rst_init(void)
|
||||
{
|
||||
const struct of_device_id *match;
|
||||
const struct rst_config *cfg;
|
||||
struct device_node *np;
|
||||
void __iomem *base;
|
||||
int error = 0;
|
||||
|
||||
np = of_find_matching_node_and_match(NULL, rcar_rst_matches, &match);
|
||||
if (!np)
|
||||
return -ENODEV;
|
||||
|
||||
base = of_iomap(np, 0);
|
||||
if (!base) {
|
||||
pr_warn("%s: Cannot map regs\n", np->full_name);
|
||||
error = -ENOMEM;
|
||||
goto out_put;
|
||||
}
|
||||
|
||||
rcar_rst_base = base;
|
||||
cfg = match->data;
|
||||
saved_mode = ioread32(base + cfg->modemr);
|
||||
|
||||
pr_debug("%s: MODE = 0x%08x\n", np->full_name, saved_mode);
|
||||
|
||||
out_put:
|
||||
of_node_put(np);
|
||||
return error;
|
||||
}
|
||||
|
||||
int __init rcar_rst_read_mode_pins(u32 *mode)
|
||||
{
|
||||
int error;
|
||||
|
||||
if (!rcar_rst_base) {
|
||||
error = rcar_rst_init();
|
||||
if (error)
|
||||
return error;
|
||||
}
|
||||
|
||||
*mode = saved_mode;
|
||||
return 0;
|
||||
}
|
43
include/dt-bindings/clock/r8a7743-cpg-mssr.h
Normal file
43
include/dt-bindings/clock/r8a7743-cpg-mssr.h
Normal file
|
@ -0,0 +1,43 @@
|
|||
/*
|
||||
* Copyright (C) 2016 Cogent Embedded Inc.
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*/
|
||||
#ifndef __DT_BINDINGS_CLOCK_R8A7743_CPG_MSSR_H__
|
||||
#define __DT_BINDINGS_CLOCK_R8A7743_CPG_MSSR_H__
|
||||
|
||||
#include <dt-bindings/clock/renesas-cpg-mssr.h>
|
||||
|
||||
/* r8a7743 CPG Core Clocks */
|
||||
#define R8A7743_CLK_Z 0
|
||||
#define R8A7743_CLK_ZG 1
|
||||
#define R8A7743_CLK_ZTR 2
|
||||
#define R8A7743_CLK_ZTRD2 3
|
||||
#define R8A7743_CLK_ZT 4
|
||||
#define R8A7743_CLK_ZX 5
|
||||
#define R8A7743_CLK_ZS 6
|
||||
#define R8A7743_CLK_HP 7
|
||||
#define R8A7743_CLK_B 9
|
||||
#define R8A7743_CLK_LB 10
|
||||
#define R8A7743_CLK_P 11
|
||||
#define R8A7743_CLK_CL 12
|
||||
#define R8A7743_CLK_M2 13
|
||||
#define R8A7743_CLK_ZB3 15
|
||||
#define R8A7743_CLK_ZB3D2 16
|
||||
#define R8A7743_CLK_DDR 17
|
||||
#define R8A7743_CLK_SDH 18
|
||||
#define R8A7743_CLK_SD0 19
|
||||
#define R8A7743_CLK_SD2 20
|
||||
#define R8A7743_CLK_SD3 21
|
||||
#define R8A7743_CLK_MMC0 22
|
||||
#define R8A7743_CLK_MP 23
|
||||
#define R8A7743_CLK_QSPI 26
|
||||
#define R8A7743_CLK_CP 27
|
||||
#define R8A7743_CLK_RCAN 28
|
||||
#define R8A7743_CLK_R 29
|
||||
#define R8A7743_CLK_OSC 30
|
||||
|
||||
#endif /* __DT_BINDINGS_CLOCK_R8A7743_CPG_MSSR_H__ */
|
44
include/dt-bindings/clock/r8a7745-cpg-mssr.h
Normal file
44
include/dt-bindings/clock/r8a7745-cpg-mssr.h
Normal file
|
@ -0,0 +1,44 @@
|
|||
/*
|
||||
* Copyright (C) 2016 Cogent Embedded Inc.
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*/
|
||||
#ifndef __DT_BINDINGS_CLOCK_R8A7745_CPG_MSSR_H__
|
||||
#define __DT_BINDINGS_CLOCK_R8A7745_CPG_MSSR_H__
|
||||
|
||||
#include <dt-bindings/clock/renesas-cpg-mssr.h>
|
||||
|
||||
/* r8a7745 CPG Core Clocks */
|
||||
#define R8A7745_CLK_Z2 0
|
||||
#define R8A7745_CLK_ZG 1
|
||||
#define R8A7745_CLK_ZTR 2
|
||||
#define R8A7745_CLK_ZTRD2 3
|
||||
#define R8A7745_CLK_ZT 4
|
||||
#define R8A7745_CLK_ZX 5
|
||||
#define R8A7745_CLK_ZS 6
|
||||
#define R8A7745_CLK_HP 7
|
||||
#define R8A7745_CLK_B 9
|
||||
#define R8A7745_CLK_LB 10
|
||||
#define R8A7745_CLK_P 11
|
||||
#define R8A7745_CLK_CL 12
|
||||
#define R8A7745_CLK_CP 13
|
||||
#define R8A7745_CLK_M2 14
|
||||
#define R8A7745_CLK_ZB3 16
|
||||
#define R8A7745_CLK_ZB3D2 17
|
||||
#define R8A7745_CLK_DDR 18
|
||||
#define R8A7745_CLK_SDH 19
|
||||
#define R8A7745_CLK_SD0 20
|
||||
#define R8A7745_CLK_SD2 21
|
||||
#define R8A7745_CLK_SD3 22
|
||||
#define R8A7745_CLK_MMC0 23
|
||||
#define R8A7745_CLK_MP 24
|
||||
#define R8A7745_CLK_QSPI 25
|
||||
#define R8A7745_CLK_CPEX 26
|
||||
#define R8A7745_CLK_RCAN 27
|
||||
#define R8A7745_CLK_R 28
|
||||
#define R8A7745_CLK_OSC 29
|
||||
|
||||
#endif /* __DT_BINDINGS_CLOCK_R8A7745_CPG_MSSR_H__ */
|
|
@ -20,10 +20,6 @@ struct device;
|
|||
struct device_node;
|
||||
struct generic_pm_domain;
|
||||
|
||||
void r8a7778_clocks_init(u32 mode);
|
||||
void r8a7779_clocks_init(u32 mode);
|
||||
void rcar_gen2_clocks_init(u32 mode);
|
||||
|
||||
void cpg_mstp_add_clk_domain(struct device_node *np);
|
||||
#ifdef CONFIG_CLK_RENESAS_CPG_MSTP
|
||||
int cpg_mstp_attach_dev(struct generic_pm_domain *unused, struct device *dev);
|
||||
|
|
6
include/linux/soc/renesas/rcar-rst.h
Normal file
6
include/linux/soc/renesas/rcar-rst.h
Normal file
|
@ -0,0 +1,6 @@
|
|||
#ifndef __LINUX_SOC_RENESAS_RCAR_RST_H__
|
||||
#define __LINUX_SOC_RENESAS_RCAR_RST_H__
|
||||
|
||||
int rcar_rst_read_mode_pins(u32 *mode);
|
||||
|
||||
#endif /* __LINUX_SOC_RENESAS_RCAR_RST_H__ */
|
Loading…
Reference in a new issue