ARM: shmobile: Move r8a7791 reset code to pm-r8a7791.c
Move r8a7791 specific reset vector setup code from the SMP glue code to PM code. This makes the code one step closer to allow PM operations such as Suspend-to-RAM in the case when SMP is disabled in the kernel config. Signed-off-by: Magnus Damm <damm+renesas@opensource.se> [horms+renesas@verge.net.au: updated for recent header file changes] Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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@ -11,12 +11,17 @@
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*/
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#include <linux/kernel.h>
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#include <linux/smp.h>
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#include <asm/io.h>
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#include "common.h"
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#include "pm-rcar.h"
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#include "r8a7791.h"
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#define RST 0xe6160000
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#define CA15BAR 0x0020
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#define CA15RESCNT 0x0040
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#define RAM 0xe6300000
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/* SYSC */
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#define SYSCIER 0x0c
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#define SYSCIMR 0x10
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@ -40,10 +45,28 @@ static inline void r8a7791_sysc_init(void) {}
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void __init r8a7791_pm_init(void)
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{
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void __iomem *p;
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u32 bar;
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static int once;
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if (once++)
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return;
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/* RAM for jump stub, because BAR requires 256KB aligned address */
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p = ioremap_nocache(RAM, shmobile_boot_size);
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memcpy_toio(p, shmobile_boot_vector, shmobile_boot_size);
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iounmap(p);
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/* setup reset vectors */
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p = ioremap_nocache(RST, 0x63);
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bar = (RAM >> 8) & 0xfffffc00;
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writel_relaxed(bar, p + CA15BAR);
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writel_relaxed(bar | 0x10, p + CA15BAR);
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/* enable clocks to all CPUs */
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writel_relaxed((readl_relaxed(p + CA15RESCNT) & ~0x0f) | 0xa5a50000,
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p + CA15RESCNT);
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iounmap(p);
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r8a7791_sysc_init();
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}
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@ -24,35 +24,11 @@
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#include "r8a7791.h"
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#include "rcar-gen2.h"
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#define RST 0xe6160000
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#define CA15BAR 0x0020
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#define CA15RESCNT 0x0040
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#define RAM 0xe6300000
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static void __init r8a7791_smp_prepare_cpus(unsigned int max_cpus)
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{
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void __iomem *p;
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u32 bar;
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/* let APMU code install data related to shmobile_boot_vector */
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shmobile_smp_apmu_prepare_cpus(max_cpus);
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/* RAM for jump stub, because BAR requires 256KB aligned address */
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p = ioremap_nocache(RAM, shmobile_boot_size);
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memcpy_toio(p, shmobile_boot_vector, shmobile_boot_size);
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iounmap(p);
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/* setup reset vectors */
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p = ioremap_nocache(RST, 0x63);
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bar = (RAM >> 8) & 0xfffffc00;
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writel_relaxed(bar, p + CA15BAR);
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writel_relaxed(bar | 0x10, p + CA15BAR);
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/* enable clocks to all CPUs */
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writel_relaxed((readl_relaxed(p + CA15RESCNT) & ~0x0f) | 0xa5a50000,
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p + CA15RESCNT);
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iounmap(p);
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r8a7791_pm_init();
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shmobile_smp_apmu_suspend_init();
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}
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