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[src/trunk]: src/sys/arch/arm/rockchip add RK3188plus freq scaling, and a 1.4...
details: https://anonhg.NetBSD.org/src/rev/784be5f18310
branches: trunk
changeset: 805385:784be5f18310
user: jmcneill <jmcneill%NetBSD.org@localhost>
date: Wed Dec 31 16:16:35 2014 +0000
description:
add RK3188plus freq scaling, and a 1.4GHz mode. anything above 1GHz with all 4 cores enabled seems to have trouble locking apll, needs more work
diffstat:
sys/arch/arm/rockchip/rockchip_board.c | 88 +++++++++++++++++++++++----------
1 files changed, 61 insertions(+), 27 deletions(-)
diffs (187 lines):
diff -r a9278d6b38fe -r 784be5f18310 sys/arch/arm/rockchip/rockchip_board.c
--- a/sys/arch/arm/rockchip/rockchip_board.c Wed Dec 31 15:25:08 2014 +0000
+++ b/sys/arch/arm/rockchip/rockchip_board.c Wed Dec 31 16:16:35 2014 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: rockchip_board.c,v 1.7 2014/12/30 17:15:31 jmcneill Exp $ */
+/* $NetBSD: rockchip_board.c,v 1.8 2014/12/31 16:16:35 jmcneill Exp $ */
/*-
* Copyright (c) 2014 Jared D. McNeill <jmcneill%invisible.ca@localhost>
@@ -29,7 +29,7 @@
#include "opt_rockchip.h"
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: rockchip_board.c,v 1.7 2014/12/30 17:15:31 jmcneill Exp $");
+__KERNEL_RCSID(0, "$NetBSD: rockchip_board.c,v 1.8 2014/12/31 16:16:35 jmcneill Exp $");
#include <sys/param.h>
#include <sys/bus.h>
@@ -37,6 +37,7 @@
#include <sys/device.h>
#include <arm/bootconfig.h>
+#include <arm/cpufunc.h>
#include <arm/rockchip/rockchip_reg.h>
#include <arm/rockchip/rockchip_crureg.h>
@@ -131,15 +132,17 @@
{
bus_space_tag_t bst = &rockchip_bs_tag;
bus_space_handle_t bsh;
- uint32_t apll_con0, apll_con1, clksel0_con, clksel1_con;
+ uint32_t apll_con0, apll_con1, apll_con2, clksel0_con, clksel1_con;
+ uint32_t reset_mask, reset;
u_int no, nr, nf, core_div, core_periph_div, core_axi_div,
aclk_div, hclk_div, pclk_div, ahb2apb_div;
u_int cpu_aclk_div_con;
+ const bool rk3188plus_p = rockchip_is_chip(ROCKCHIP_CHIPVER_RK3188PLUS);
rockchip_get_cru_bsh(&bsh);
#ifdef ROCKCHIP_CLOCK_DEBUG
- printf("%s: rate=%u\n", __func__, rate);
+ printf("%s: rate=%u rk3188plus_p=%d\n", __func__, rate, rk3188plus_p);
#endif
switch (rate) {
@@ -155,6 +158,18 @@
pclk_div = 4;
ahb2apb_div = 2;
break;
+ case 1416000000:
+ nr = 1;
+ nf = 59;
+ no = 1;
+ core_div = 1;
+ core_periph_div = 8;
+ core_axi_div = 4;
+ aclk_div = 4;
+ hclk_div = 2;
+ pclk_div = 4;
+ ahb2apb_div = 2;
+ break;
case 1008000000:
nr = 1;
nf = 42;
@@ -186,6 +201,14 @@
return EINVAL;
}
+ if (rk3188plus_p) {
+ reset_mask = CRU_PLL_CON3_RESET_MASK;
+ reset = CRU_PLL_CON3_RESET;
+ } else {
+ reset_mask = CRU_PLL_CON3_POWER_DOWN_MASK;
+ reset = CRU_PLL_CON3_POWER_DOWN;
+ }
+
apll_con0 = CRU_PLL_CON0_CLKR_MASK | CRU_PLL_CON0_CLKOD_MASK;
apll_con0 |= __SHIFTIN(no - 1, CRU_PLL_CON0_CLKOD);
apll_con0 |= __SHIFTIN(nr - 1, CRU_PLL_CON0_CLKR);
@@ -193,10 +216,16 @@
apll_con1 = CRU_PLL_CON1_CLKF_MASK;
apll_con1 |= __SHIFTIN(nf - 1, CRU_PLL_CON1_CLKF);
+ if (rk3188plus_p) {
+ apll_con2 = CRU_PLL_CON2_BWADJ_MASK;
+ apll_con2 |= __SHIFTIN(nf >> 1, CRU_PLL_CON2_BWADJ);
+ } else {
+ apll_con2 = 0;
+ }
+
clksel0_con = RK3188_CRU_CLKSEL_CON0_A9_CORE_DIV_CON_MASK |
CRU_CLKSEL_CON0_CORE_PERI_DIV_CON_MASK |
- CRU_CLKSEL_CON0_A9_CORE_DIV_CON_MASK |
- CRU_CLKSEL_CON0_CPU_CLK_PLL_SEL;
+ CRU_CLKSEL_CON0_A9_CORE_DIV_CON_MASK;
clksel0_con |= __SHIFTIN(core_div - 1,
RK3188_CRU_CLKSEL_CON0_A9_CORE_DIV_CON);
clksel0_con |= __SHIFTIN(ffs(core_periph_div) - 2,
@@ -204,11 +233,10 @@
clksel0_con |= __SHIFTIN(aclk_div - 1,
CRU_CLKSEL_CON0_A9_CORE_DIV_CON);
- clksel1_con = RK3188_CRU_CLKSEL_CON1_CPU_ACLK_DIV_CON_MASK |
- CRU_CLKSEL_CON1_AHB2APB_PCLKEN_DIV_CON_MASK |
+ clksel1_con = CRU_CLKSEL_CON1_AHB2APB_PCLKEN_DIV_CON_MASK |
CRU_CLKSEL_CON1_CPU_PCLK_DIV_CON_MASK |
CRU_CLKSEL_CON1_CPU_HCLK_DIV_CON_MASK;
-
+
switch (core_axi_div) {
case 1: cpu_aclk_div_con = 0; break;
case 2: cpu_aclk_div_con = 1; break;
@@ -217,8 +245,6 @@
case 8: cpu_aclk_div_con = 4; break;
default: panic("bad core_axi_div");
}
- clksel1_con |= __SHIFTIN(cpu_aclk_div_con,
- RK3188_CRU_CLKSEL_CON1_CPU_ACLK_DIV_CON);
clksel1_con |= __SHIFTIN(ffs(ahb2apb_div) - 1,
CRU_CLKSEL_CON1_AHB2APB_PCLKEN_DIV_CON);
clksel1_con |= __SHIFTIN(ffs(hclk_div) - 1,
@@ -237,40 +263,48 @@
bus_space_read_4(bst, bsh, CRU_CLKSEL_CON_REG(1)));
#endif
- /* Change from normal to slow mode */
- bus_space_write_4(bst, bsh, CRU_MODE_CON_REG,
- CRU_MODE_CON_APLL_WORK_MODE_MASK |
- __SHIFTIN(CRU_MODE_CON_APLL_WORK_MODE_SLOW,
- CRU_MODE_CON_APLL_WORK_MODE));
+ /* Set CPU clk src to GPLL */
+ const u_int curcpufreq = rockchip_cpu_get_rate();
+ const u_int gpllfreq = rockchip_gpll_get_rate();
+
+ bus_space_write_4(bst, bsh, CRU_CLKSEL_CON_REG(0),
+ RK3188_CRU_CLKSEL_CON0_A9_CORE_DIV_CON_MASK|
+ CRU_CLKSEL_CON0_CPU_CLK_PLL_SEL_MASK|
+ __SHIFTIN(howmany(curcpufreq, gpllfreq) - 1,
+ RK3188_CRU_CLKSEL_CON0_A9_CORE_DIV_CON)|
+ CRU_CLKSEL_CON0_CPU_CLK_PLL_SEL);
/* Power down */
- bus_space_write_4(bst, bsh, CRU_APLL_CON3_REG,
- CRU_PLL_CON3_POWER_DOWN_MASK | CRU_PLL_CON3_POWER_DOWN);
+ bus_space_write_4(bst, bsh, CRU_APLL_CON3_REG, reset_mask | reset);
/* Update APLL regs */
bus_space_write_4(bst, bsh, CRU_APLL_CON0_REG, apll_con0);
bus_space_write_4(bst, bsh, CRU_APLL_CON1_REG, apll_con1);
+ if (apll_con2)
+ bus_space_write_4(bst, bsh, CRU_APLL_CON2_REG, apll_con2);
/* Wait for PLL lock */
for (volatile int i = 5000; i >= 0; i--)
;
/* Power up */
- bus_space_write_4(bst, bsh, CRU_APLL_CON3_REG,
- CRU_PLL_CON3_POWER_DOWN_MASK);
+ bus_space_write_4(bst, bsh, CRU_APLL_CON3_REG, reset_mask);
+
+ for (volatile int i = 50000; i >= 0; i--)
+ ;
/* Update CLKSEL regs */
bus_space_write_4(bst, bsh, CRU_CLKSEL_CON_REG(0), clksel0_con);
bus_space_write_4(bst, bsh, CRU_CLKSEL_CON_REG(1), clksel1_con);
- for (volatile int i = 50000; i >= 0; i--)
- ;
+ /* Set CPU clk src to APLL */
+ bus_space_write_4(bst, bsh, CRU_CLKSEL_CON_REG(0),
+ CRU_CLKSEL_CON0_CPU_CLK_PLL_SEL_MASK);
- /* Change from slow mode to normal mode */
- bus_space_write_4(bst, bsh, CRU_MODE_CON_REG,
- CRU_MODE_CON_APLL_WORK_MODE_MASK |
- __SHIFTIN(CRU_MODE_CON_APLL_WORK_MODE_NORMAL,
- CRU_MODE_CON_APLL_WORK_MODE));
+ bus_space_write_4(bst, bsh, CRU_CLKSEL_CON_REG(0),
+ RK3188_CRU_CLKSEL_CON1_CPU_ACLK_DIV_CON_MASK |
+ __SHIFTIN(cpu_aclk_div_con,
+ RK3188_CRU_CLKSEL_CON1_CPU_ACLK_DIV_CON));
#ifdef ROCKCHIP_CLOCK_DEBUG
printf("after: APLL_CON0: %#x\n",
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